Page 1 PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A. PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936...
Page 2: Safety Information
PIONEER Service Manual. A subscription to, or additional copies of, Also test with plug reversed Earth PIONEER Service Manual may be obtained at a nominal (Using AC adapter ground charge from PIONEER. plug as required)
Page 3 To protect products from damages or failures during transit, the shipping mode should be set or the shipping screws should be installed before shipment. Please be sure to follow this method especially if it is specified in this manual. VSX-LX50...
Page 4: Table Of Contents
10.19 POWER AMP IN and POWER PROTECT ASSYS ................138 10.20 HDMI & DVC ASSY (1/2) ........................140 10.21 HDMI & DVC ASSY (2/2) ........................142 10.22 USB ASSY (VSX-LX50 ONLY) ......................144 11. PCB CONNECTION DIAGRAM........................147 11.1 AUDIO IN ASSY........................... 148 11.2 12V-REG ASSY............................
Page 5: Vsx-Lx50
11.26 VIDEO CONNECT ASSY ........................210 11.27 POWER AMP-L ASSY........................212 11.28 POWER AMP-R ASSY ........................216 11.29 POWER AMP IN ASSY ........................220 11.30 POWER PROTECT ASSY........................222 11.31 HDMI & DVC ASSY ..........................224 11.32 USB ASSY (VSX-LX50 ONLY) ......................228 12. PCB PARTS LIST............................230 VSX-LX50...
Page 6: Service Precautions
Compared with eutectic solders, lead-free solders have higher bond strengths but slower wetting times and higher melting temperatures (hard to melt/easy to harden). The following lead-free solders are available as service parts: • Parts numbers of lead-free solder: GYP1006 1.0 in dia. GYP1007 0.6 in dia. GYP1008 0.3 in dia. VSX-LX50...
Page 7: A 2. Specifications
(ATB7013) (ADH7030) (VEM1031) Setup Microphone (for Auto MCACC setup) (APM7008) Remote Control Unit (AXD7491: VSX-LX50) Audio Control Cable for iPod (AXD7490: VSX-91TXH) (XDE7025) KU models only (AXD7497: VSX-9120TXH-K) Windows Media™ and the Windows logo are trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries.
Page 8: Specifications
2.2 SPECIFICATIONS VSX-LX50 Amplifier section FM Tuner Section Continuous Power Output (Stereo) Frequency Range ......87.5 MHz to 108 MHz Usable Sensitivity ..Mono: 15.2 dBf, IHF (1.6 µV/75 Ω) Front ..150 W + 150 W (DIN 1 kHz, THD 1 %, 6 Ω) 50 dB Quieting Sensitivity ......Mono: 20.2 dBf...
Page 9 Signal-to-Noise Ratio..........65 dB (*) KU models only Frequency Response ......5 Hz to 10 MHz Component Video Section Input (Sensitivity/Impedance) ......1 Vp-p/75 Ω Output (Level/Impedance) ......1 Vp-p/75 Ω Signal-to-Noise Ratio..........65 dB Frequency Response ......5 Hz to 100 MHz VSX-LX50...
Page 10: Panel Facilities
2.3 PANEL FACILITIES Front Panel (VSX-LX50) VSX-LX50 PHASE STANDBY / ON CONTROL DIGITAL PRECISION PROCESSING LISTENING SIGNAL SB ch MULTI CH DVD/LD TV /SAT DVR /VCR 1 DVR /VCR 2 VIDEO/GAME CD-R / TAPE / MD FM/AM iPod HIMD MODE...
Page 11 Use to select an input signal. 22 SPEAKERS Use to change the speaker system. SB ch PROCESSING – Selects the surround back channel mode or virtual surround back mode. MULTI CH IN – Press to select the multichannel analog inputs. VSX-LX50...
Page 12 11 Composite and S-video monitor outputs Control input/output Use to connect monitors and TVs. Use to connect other Pioneer components so that you 12 Multichannel analog audio inputs can control all your equipment from a single IR remote 7.1 channel inputs for connection to a DVD player with sensor.
Page 13 15 Multichannel analog audio inputs Control input/output 7.1 channel inputs for connection to a DVD player with Use to connect other Pioneer components so that you multichannel analog outputs. can control all your equipment from a single IR remote 16 12 V trigger jack (total 50 mA max.) sensor.
Page 14 Display (VSX-LX50) TUNED AUTO DIGITAL DTS WMA9 Pro OVER DIALOG E STEREO MONO DSD PCM S.RTRV SOUND Hi-Bit/Sampling V.SB HDMI DIGITAL ANALOG [ 1 ] [ 2 ] HDMI STREAM DIRECT PRO LOGIC ADV.SURROUND STEREO STANDARD SP AB SLEEP SIGNAL indicators MONO –...
Page 15 Light to indicate the HDMI input currently selected. Lights during Virtual surround back processing. TUNER indicators TUNED – Lights when a broadcast is being received. STEREO – Lights when a stereo FM broadcast is being received in auto stereo mode. VSX-LX50...
Page 16 Remote Control (VSX-LX50) Input source buttons Press to select control of other components. Number buttons and other receiver/component controls SYSTEM OFF RECEIVER INPUT SOURCE Use the number buttons to directly select a radio SELECT frequency or the tracks on a CD, DVD, etc.
Page 17 The following commands are shown when you’re setting the remote to control other components. SETUP – Indicates the setup mode, from which you choose the options below. PRESET – See Selecting preset codes directly VSX-LX50...
Page 18 Use the TUNE This switches between standby and on for this receiver. buttons to find radio frequencies and use ST to INPUT SELECT find preset stations. Use to select the input source (use SHIFT for INPUT SELECT VSX-LX50...
Page 19 Stream Direct playback bypasses the tone controls SETUP – Indicates the setup mode, from which you and any other signal processing for the most choose the options below. accurate reproduction of a source. PRESET – See Selecting preset codes directly. VSX-LX50...
Page 20: Basic Items For Service
Items to be checked regarding video Item to be checked regarding audio Block noise Distortion Horizontal noise Noise Dot noise Volume too low Disturbed image (video jumpiness) Volume too high Too dark Volume fluctuating Too bright Sound interrupted Mottled color VSX-LX50...
Page 21: Pcb Locations
3.2 PCB LOCATIONS VSX-LX50 POSI 2-L POWER AMP IN HEADPHONE FRONT-IN ONLY ASSY ASSY ASSY ASSY POSI 1-L ASSY POWER AMP-L ASSY MULTI JOG DISPLAY VOLUME ASSY ASSY ASSY POSI 1-R ASSY POWER AMP-R ASSY POWER PROTECT ASSY IR I/O...
Page 22 Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List. mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation. LIST OF ASSEMBLIES VSX-LX50 VSX-91TXH VSX-9120TXH-K Mark...
Page 23: Jigs List
Update the Flash ROMS Update the Flash ROMS 7-pin FFC VDA1681 CLEANING Before shipping out the product, be sure to clean the following positions by using the prescribed cleaning tools: Position to be cleaned Cleaning tools Fans Cleaning paper : GED-008 VSX-LX50...
Page 24: Block Diagram
D20PDD1715E DISPLAY ASSY component parts indicates 4/100 17/150 the importance of the J2451 (VSX-LX50 : AWX8874) J2501 safety factor of the part. (VSX-91TXH, VSX-9120TXH : *1.5mm Therefore, when replacing, AWX8873) be sure to use parts VOLUME ASSY of identical designation.
Page 25 Therefore, when replacing, be sure to use parts of identical J3201 designation. 4/100 : The power supply is shown with the marked box. POSI 1-L ASSY (VSX-LX50 : AWX9081) (VSX-91TXH, VSX-9120TXH 3201 : AWX9080) ADD7534- PF12PG-R40...
Page 26: Block Diagram For Audio Block
FOPT AOUTL BA4560RF JA2651 VIDEO/GAME MICOUT JA2701 MICOUT IC781 MIC IN BA4560RF JA2751 USB ASSY CN516 IC701 IC741 PRE Amp IC501 VSX-LX50 TCC8600 R2S152005FP ONLY IC801 CN701 CN702 UPC4570G2 CN521(1/2) IC841 CD L UPC4570G2 CN522(1/2) CDR/TAPE/MD VOL. IC821(2/2) UPC4570G2 CN522(2/2)
Page 27 IC5602 Voltage Amp CN5606 CN5303 SAP17P CN5603 Current Amp POWER AMP IN ASSY CN1406 CN1501(1/2) CN2902 CN1405 CN2901 CN1502(1/2) LOUT LOUT SLOUT CN1501(2/2) SLOUT SWOUT SWOUT PRE OUT COUT COUT CN1501(2/2) SBLOUT SBLOUT CN1502(2/2) BRIDGE 2 COMPONENT ASSY ASSY VSX-LX50...
Page 28: Block Diagram For Video Block
S-Video IC1201 IC1203 TC74HC4051AFT TC74HC4053AFT DVD/LD MUTE MONITOR TV/SAT MUTE Sync DVR/VCR 1 Selector for DVC/Through DVR/VCR 1 REC OUT Y Selector DVR/VCR 2 MUTE IC1202 TC74HC4051AFT MUTE 6dB AMP DVR/VCR 2 REC OUT C Selector S-VIDEO ASSY VSX-LX50...
Page 29 DVC from DVC CN1401 Input Selector COMPONENT ASSY for Component IC1042 TC74LVX4052FT COMPONENT IC1043 TC74LVX4053FT IC1044 NJM2581M COMPONENT IC1041 TC74LVX4052FT 6dB AMP Selector &DRIVER for DVC/Through COMPONENT VSX-LX50...
Page 30: Diagnosis
CN301, CN953 IC502 (Pin 5) XM Load Switch Are the Check the parts and patterns Is the voltage Insert the FFCs FFC securely in the path. around 5.2 V? securely. inserted? To Step 2 VSX-LX50...
Page 31 1.2 V? IC109 (Pin 5) Logic IC 3.3V Regulator IC903 (Pins 3,4) Check the parts and patterns Is the voltage in the path. 3.3 V? Check the parts and patterns Is the voltage in the path. around 5.2 V? VSX-LX50...
Page 32 IC401 (Pins 14,28) D/A Converter XM/DT IC IC501 (Pin 4, etc.) Check the parts and patterns Is the voltage in the path. Check the parts and patterns 5 V? Is the voltage in the path. 3.3 V? To Step 3 VSX-LX50...
Page 33 88.2kHz” or “LPCM Multi ch”. → Go to Step 4-3-1 (S/PDIF path) When the source is “dts HD High Resolution Audio”, “dts HD LBR”, “Dolby Digital Plus”, “2ch at or below the sampling rate of 48kHz), or “other compression streams”. → Go to Step 4-1 VSX-LX50...
Page 34 IC301 (Pin 26) DIRB in the input path? (24.576 MHz)? Replace IC301 (IC601) or IC651. Is there Is there abnormality at the a bit clock parts and patterns output? in the output path? Replace IC301 or IC651 (IC601). VSX-LX50...
Page 35 Check the path to the microcomputer. 0 V? Check the parts and patterns in the input path. IC651 (Pin 1) Replace IC301 or IC481 or IC651 HDSW (IC601). Is the voltage Check the path to the microcomputer. 0 V? VSX-LX50...
Page 36 13 (PDN) output? 3.3 V? IC651 (Pin 13) Check the path to the Is there microcomputer. Is there abnormality at the a LR clock parts and patterns input? Replace IC481. in the input path? Replace IC651. VSX-LX50...
Page 37 HDSW IC651 (Pin 6) HBCK Is there Is the Is there abnormality at the Check the path to the microcomputer. a bit clock voltage parts and patterns input? 0 V? in the input path? Replace IC651. To Step 5-2 VSX-LX50...
Page 38 Replace IC501 IC301 (Pin 23) DIRM or IC601. IC601 (Pin 3) Is there Is there abnormality at the a audio data parts and patterns input? in the input path? Replace IC501 or IC601. VSX-LX50...
Page 39 Is there parts and patterns abnormality at the a bit clock in the path? parts and patterns in output? the output path? Replace IC651 or, Replace IC301 when IC101 is defective, or IC651. Replace the Assy. IC651 (Pin 5) VSX-LX50...
Page 40 IC101 is defective, Replace the Assy. IC101 L14 (R121(4)) BDTI Is there Is there abnormality at the a audio data parts and patterns (with SBch source)? in the path? IC101 is defective, Replace the Assy. To Step 6 VSX-LX50...
Page 41 Replace IC201. IC291 (Pin 6) MCK2 Is there Is there abnormality at the a master clock parts and patterns (24.576 MHz)? in the path? Replace IC291 or IC201. IC201 (Pin 73) VSX-LX50...
Page 42 (24.576 MHz)? in the output path? Replace IC291, IC701 or IC751. IC701 (Pin 2) Is there Is there abnormality at the a master clock input parts and patterns (24.576 MHz)? in the input path? Replace IC291, IC701 or IC751. VSX-LX50...
Page 43 IC201 (Pin 7) FDTO input? in the input path? Replace IC751 or IC401. Is there Is there abnormality at the a audio data parts and patterns output? in the output path? Failure in 2nd DSP block. Go to Step 9. VSX-LX50...
Page 44 DSP Assy. at CN401-pins 7 a audio data parts and patterns and 5? (with Sch source)? in the path? Replace IC701 or IC751. Is not there poor contact Replace CN401. in CN401-pins 7 and 5? VSX-LX50...
Page 45 Check the parts and patterns abnormality at the a audio data analog audio output (short-circuit) in the path including parts and patterns (with Sch source)? (with SBch source)? in the path? the DSP assy and others. Replace IC751 or IC401. Replace IC401. VSX-LX50...
Page 46 DICS3 CN951 (Pin 21) is 0 V? Does the voltage become Check the parts and patterns 3.3 V for a moment in the path. when the input stream is changed? VSX-LX50...
Page 47 3.3 V or 0 V? Is the clock Check the parts and patterns signal output while the in the path. voltage at D2CS is 0 V? It is very difficult to diagnose which part is in failure. VSX-LX50...
Page 48: Dsp Block Diagram
(Supplement) Differences in channel allocation for SACD signal and other signals CN801 IC101 Pin No. SACD signal Other signals Pin No. SACD signal Other signals Data(SL) Data(FR) LR clock Data(SR) Data(SBL,SBR) Data(SL) Data(SW) Data(SL,SR) Data(SR) Data(SBL,SBR) Data(C) Data(C,SW) Data(SW) Data(SL,SR) Data(FL) Data(FL,FR) Data(C) Data(C,SW) Data(FR) LR clock Data(FL) Data(FL,FR) VSX-LX50...
Page 49 Logic ICs Logic ICs 3.3V 3.3V GNDD GNDD Lipsync 5V & 3.3V 3.3V GNDD GNDD 2ch ADC 8ch DAC COAX A5V & D3.3V GNDD XM/DT GNDD 3.3V GDAC GNDD GDAC 10 11 13 5 6 15 18 20 CN401 CN901 VSX-LX50...
Page 50 Multi × Multi × DVD-A Multi × × Multi × Multi SACD × (DSD) Multi × (DSD) dts HD Master Audio × dts HD High Resolution Audio × dts HD LBR × Dolby TrueHD × Dolby Digital Plus × VSX-LX50...
Page 51: Hdmi Troubleshooting
2. Causes for noncompletion of HDMI authentication between the monitor and this unit (no display or sound from the monitor) Replace the HDMI cable. Replace the HDMI cable. Replace the Receiver. Repare the Receiver. Replace the TV monitor. Repare the TV monitor. VSX-LX50...
Page 52 To Step 2-1: HDMI section Check the IC501 or IC502. To Step 3-1: Video converter section Is the voltage If IC501 or IC502 is failure, "L" (0 V)? replace IC501 or IC502. Check the Q902. If Q902 is failure, replace Q902. VSX-LX50...
Page 53 Check the patterns, JA101 in the 3.3 V (HDMI Tx) L301 Is the voltage path. "H" (5 V)? V+3TX If JA101 is failure, replace JA101. Check the L301. Is the voltage If L301 is failure, replace L301. 3.3 V? VSX-LX50...
Page 54 If R168 is failure, replace R168. Is the voltage the path. 5 V? If Q171 or R181 is failure, replace * When connected the source Q171 or R181. equipment to IN2. * When connected the sink equipment to OUT VSX-LX50...
Page 55 Check the patterns and JA301 in Is there a data? constant period the path (IC101 to IC301). the path. (0 to 5 V) If IC101 is failure, replace IC101. If JA301 is failure, replace JA301. VSX-LX50...
Page 56 Is there a data? the path (IC101 to IC201, IC301). If IC101 is failure, replace IC101. CN1001 (Pin 18) DATAI No Check the parts and patterns in Is there a data? the path (CN1001 to IC202). Diagnose the DSP Assy. VSX-LX50...
Page 57 Is there a clock? the path (IC202 to CN1001). If IC202 is failure, replace IC202. CN1001 (Pin 13) WS(LRCK) Check the parts and patterns in Is there a clock? the path (IC202 to CN1001). If IC202 is failure, replace IC202. VSX-LX50...
Page 58 Check the patterns in the path Is the voltage 3.3 V? and L701. If L701 is failure, replace L701. 3.3 V (VIDEO ENC) 3.3V_EN2 3.3V_EN2 Check the patterns in the path Is the voltage 3.3 V? and L702. If L702 is failure, replace L702. VSX-LX50...
Page 59 If IC401 or IC454 or IC701 is failure, replace IC401 or IC454 or Check the parts and patterns in Is there voltage IC701. the path (IC501 to IC454). "L" (0 V)? If IC501 or IC454 is failure, replace IC501 or IC454. VSX-LX50...
Page 60 C signal? Pr signal? If Q751 or R753 is failure, If Q781 or R783 is failure, replace Q751 or R753. replace Q781 or R783. Diagnose the MAIN CONTROL Diagnose the MAIN CONTROL Assy or S-VIDEO Assy. Assy or COMPONENT Assy. VSX-LX50...
Page 61 V+3RX 3.3V_RX1 1.8V_RX1 V+1R8TX 3.3V_RX2 Video converter section Video converter section Video converter section HDMI section HDMI section HDMI section Common Common Common section section section V+1R8_DE V+3R3UC V+5HD 1.8V_TX1 V+3TX 1.8V_TX2 V+1R8 V+3R3VC V+3R3 V+5A 3.3V_TX1 V+7D V+5D VSX-LX50...
Page 62 HDMI & DVC Assy Check Points (Signal section) SIDE B HDMI section HDMI & DVC ASSY Video converter section E-10 E-12 E-11 E-15 E-13 E-16 E-14 Common section VSX-LX50...
Page 63 DSCL1 HSYNC, VSYNC, DE (19P) DSDA1 D[0-7] Hot Plug1 D[8-15] D[16-23] IC451 IC452 IC453 VC_SCL 28.63636MHz VC_SDA Analog Video IN/OUT CVBS HS, VS, DE P[22-29] IC401 P[12-19] ADV7800BSTZ-80 VIDEO DECODER IC454 IC701 ADV7172KSTZ CN1002 (23P) P[2-9] VIDEO ENCODER CVBS VSX-LX50...
Page 64 5.1.3 USB MODULE (VSX-LX50 Only) Description of Error Indications FL Display Error Content Possible causes and actions to be taken Overcurrent (500 mA or more) is consumed at the connected USB device. • Some USB devices, such as a portable HDD, need more current than that...
Page 65 SDRAM FLASH ROM Main parts Purpose TCC8600-00X-EA-UG : USB Host control decoder (MP3/WMA/MPEG-4AAC) 16M FLASH ROM : Firmware is stored 64M SDRAM : Temporary storage area of decoding music file LOAD SWITCH : Current limitation to USB device power VSX-LX50...
Page 66 IC771 (pin 5) USB Power SW 1.8 V ? hot? Replace IC702. Check the parts and the voltage patterns in the path. The output and GND may be 5 V ? short-circuited. Check the path between them. VSX-LX50...
Page 67 Communicate with high during operation. Fig. 2 System CPU? Check the pattern in the path. IC951 (3 V → 5 V) IC701 CN702 Check the MOTHER Assy. Replace IC762, IC701, IC761. USB-Tx pin 95 pin 2 pin 4 pin 11 VSX-LX50...
Page 68 IC741 (pin 4) IC741 (pin 4) SPDIF SPDIF Are there Are there Replace IC741. Replace IC741. audio signal audio signal Check the parts and Check the parts and pattern between IC701 pattern between IC701 and CN702. and CN702. VSX-LX50...
Page 69 It is likely that the SIRIUS tuner Check the Reset Line for Operation OK other input sources,Check the is in failure. Check the connection SIRIUS tuner. SIRIUS L/R analog audio lines the "SIRIUS Connect tuner" and to E-Vol(IC501). AC adaptor. Replace the antenna. VSX-LX50...
Page 70: Circuit Description
→ Collector of Q5571 and Q5572 are "L". C ch L ch SL ch SBL ch -DC detection: Q5572 emitter is minus to the base. → Collector of Q5571 and Q5572 are "L". POWER AMP-L ASSY POWER AMP IN ASSY VSX-LX50...
Page 71 R5715 Q5704 GNDU OUTPUT L ch GNDU GAMP IC5002 R5044 CN5702 D5343 R ch D5143 SL ch CN5302 D5443 SR ch POWER D5243 SBL ch D5543 AMP-R ASSY SBR ch CN5301 C ch CN5602 D5143 POWER AMP IN ASSY VSX-LX50...
Page 72: Service Mode
: Flash ROM within the DSP IC (IC201) Normal display [Notes] 1. If the version indication becomes "**," a failure in communications between the corresponding microcomputers or a failure in the corresponding microcomputers is likely. 2. In this submode, the user settings will not be cleared. VSX-LX50...
Page 73 When the keys are pressed, the numbers of DC detections, overload detections, detections of connectors disconnection inside unit (It is detected by both DC and OVERLOAD detections.), detections of fan abnormalities, and detections of abnormal temperature are displayed for 3 seconds each, in that order. The maximum value of each detections is 255. VSX-LX50...
Page 74 XM Power Error : Thepower supply of the XM antenna is abnormally. (KUXJ and KUXJ/CA models only) [How to enter release mode] Press and hold HY model : DVR/VCR2, KU model : VIDEO/GAME and ENTER keys on the front panel simultaneously for 5 seconds in standby mode. VSX-LX50...
Page 75: Disassembly
Reassembling the Power Amp Block. Q3252 Q3252 UMD2N UMD2N D3265 13(B) IC3252 AEK7021 D3266 Q3253 Q3253 13(B) UMD2N UMD2N -65V +56V R3254 R3256 4.7k 3.3k (1/2W) (1W) -56V 3251 51048-0600 TRANS 2-1 ASSY To VH TR ASSY C3257 C3258 TRANS 2-1 ASSY VSX-LX50...
Page 76 Disconnect the one jumper wire. Disconnect the six connectors. Remove the power amp block. PS/SP Assy Rear view ×6 TRANS 2-1 Assy Remove the eight screws. Remove the bonnet. POWER AMP IN Assy Power Amp Bonnet Block ×2 POWER PROTECT Assy ×2 VSX-LX50...
Page 77 POWER AMP IN Assy Remove the one nylon rivet. Remove the one nyron rivet. Disconnect the one connector. (VSX-LX50 only) Remove the POWER AMP IN Assy by removing the four connectors. Remove the POWER PROTECT Assy by removing the two connectors.
Page 78 COMPOSITE, S-VIDEO, COMPONENT and VIDEO CONNECT Assys. Remove the one screw. Remove the three screws. (KU model: Remove the 4 screws.) Remove the 32 screws. (KU model: Remove the 33 screws.) Remove the rear panel. ×32 KU model Only Rear view VSX-LX50...
Page 79 Pin jack (L side GND) on the AUDIO IN Assy ↔ chassis Pin jack (Yellow GND) on the COMPOSITE Assy ↔ chassis Speaker terminal (L side black) ↔ chassis DSP Assy AUDIO IN Assy Speaker terminal AUDIO IN Assy VSX-LX50...
Page 80 COMPOSITE S-VIDEO Assy Assy CN1202 CN1203 COMPOSITE Assy CN1201 15P board to board Insulation sheet S-VIDEO Assy extension jig cable (GGD1484) 15P board to board 13P board to board extension jig cable extension jig cable (GGD1484) (GGD1483) Diagnosis Diagnosis VSX-LX50...
Page 81 VIDEO CONNECT Assy CN3802 CN110 BRIDGE 2 Assy CN111 CN1002 S-VIDEO Assy COMPOSITE CN1001 Assy CN1003 11P board to board extension jig cable (GGD1482) 13P board to board 21P board to board extension jig cable extension jig cable (GGD1483) (GGD1485) Diagnosis VSX-LX50...
Page 82: Each Setting And Adjustment
Connect as shown in the figure below. Rear side This unit Slit for an MAIN and DSP for downloading FFC CONTACT SIDE : UPWARD (VDA1681) GGF1348 RS-232C Straight cable - KU models - Connect as shown in the figure below. This unit RS-232C Cross cable VSX-LX50...
Page 83 6. Select the firmware file (.mot file) for updating each ucom. Note: Do NOT download the firmware file for other ucom. 7. Select the communication speed. • Basic speed: 19200 • Data transfer speed: 57600 VSX-LX50...
Page 84 Please refer to "Version indication" (p72). 3. Connect a CD or DVD player (1) Connect the CD or DVD player for updating to any digital input jack of this unit. (2) Select the input source to the connected source by pressing input source key. VSX-LX50...
Page 85 (2) After confirming the "OK", stop or pause the CD/DVD player and wait for 5 seconds then turn off the power of the AV receiver (Standby mode). 8. Check the version of the DSP flash ROM (1st DSP). Please refer to "Version indication" (p72) and check that the version has been changed to a new one. VSX-LX50...
Page 86 • Do NOT reconnect the USB flash memory which is saved the "player.rom" file. • Do NOT change the function setting or turn off the power during step 5 through 7. If you do, the updating is failed and it is required to replace the USB flash ROM on the USB module. VSX-LX50...
Page 87 VSX-LX50...
Page 88: Exploded Views And Parts List
For the applying amount of lubricants or glue, follow the instructions in this manual. (In the case of no amount instructions, apply as you think it appropriate.) 9.1 PACKING Polyethlene Bag VSX-91TXH, VSX-9120TXH-K ONLY VSX-LX50 ONLY 17 (VSX-LX50 ONLY) 24 (KU models ONLY) VSX-LX50 ONLY VSX-LX50...
Page 89 Operating Instructions (Spanish)See Contrast table (2) Operating Instructions (Dutch) See Contrast table (2) Remote Control Unit See Contrast table (2) (2) CONTRAST TABLE VSX-LX50/HYXJ5, VSX-91TXH/KUXJ/CA and VSX-9120TXH-K/KUXJ are constructed the same except for the fol- lowing: VSX-LX50/ VSX-91TXH/ VSX-9120TXH-K/ Mark No.
Page 90: Exterior Section
9.2 EXTERIOR SECTION VSX-LX50 ONLY Refer to "9.3 CHASSIS SECTION". Refer to "9.6 FRONT PANEL SECTION". VSX-LX50...
Page 91 BBZ30P080FCC Screw BCZ40P060FTB Screw IBP30P090FCC • • • • • • • • • • (2) CONTRAST TABLE VSX-LX50/HYXJ5, VSX-91TXH/KUXJ/CA and VSX-9120TXH-K/KUXJ are constructed the same except for the fol- lowing: VSX-LX50/ VSX-91TXH/ VSX-9120TXH-K/ Mark No. Symbol and Description HYXJ5...
Page 92: Chassis Section
9.3 CHASSIS SECTION VSX-91TXH, AC OUTLET VSX-9120TXH-K ONLY VSX-LX50 ONLY Sub Trans VSX-LX50 ONLY 17 18 42(x4) Refer to "9.5 POWER AMP SECTION". VSX-91TXH, VSX-9120TXH ONLY Refer to "9.4 REAR SECTION". Refer to "9.6 FRONT PANEL SECTION" (∗b) VSX-LX50...
Page 93 DSP Shield 2016 ANG7546 NSP 55 Fuse Card See Contrast table (2) Cushion Circle 14B AED7081 (2) CONTRAST TABLE VSX-LX50/HYXJ5, VSX-91TXH/KUXJ/CA and VSX-9120TXH-K/KUXJ are constructed the same except for the following: VSX-LX50/ VSX-91TXH/ VSX-9120TXH-K/ Mark No. Symbol and Description HYXJ5 KUXJ/CA...
Page 94: Rear Section
9.4 REAR SECTION VSX-LX50 POWER AMP IN CN5603 27(x3) 24(x2) LOCAL P-SUPPLY J3505 FRONT-IN CN2651 POWER PROTECT CN5703 DISPLAY CN2301 LOCAL P-SUPPLY 3502 FRONT-IN CN2652 12V-REG LOCAL P-SUPPLY J3504 VSX-LX50...
Page 95 Rear Panel LX50HY ANC8469 19P FFC/60V (J58) ADD7535 11P FFC/60V (J59) ADD7536 17P FFC/60V (J54) ADD7540 29P FFC/60V (J55) ADD7532 19P FFC/60V (J56) ADD7533 10P FFC/60V (J51) ADD7528 Card Spacer AEC7214 Screw BBZ26P080FCC Screw BBZ30P080FCC Screw PMZ30P060FCC Screw BBT30P080FNI VSX-LX50...
Page 96 VSX-91TXH, VSX-9120TXH-K POWER AMP IN CN5603 27(x3) 29(x2) 24(x2) LOCAL P-SUPPLY J3505 FRONT-IN CN2651 POWER PROTECT CN5703 DISPLAY CN2301 LOCAL P-SUPPLY 3502 12V-REG LOCAL P-SUPPLY J3504 VSX-LX50...
Page 97 11P FFC/60V (J59) ADD7536 17P FFC/60V (J54) ADD7540 29P FFC/60V (J55) ADD7532 19P FFC/60V (J56) ADD7533 12P FFC/60V (J52) ADD7529 10P FFC/60V (J51) ADD7528 Card Spacer AEC7214 Screw BBZ26P080FCC Screw BBZ30P080FCC Screw PMZ30P060FCC Screw 2.85 x 7 ABA7078 Screw BBT30P080FNI VSX-LX50...
Page 98: Power Amp Section
9.5 POWER AMP SECTION COMPONENT VSX-LX50 CN1406 ONLY to/from PS/SP TRANS 2-1 CN3252 TRANS SIDE CN3202 MAIN CONTROL CN103 LOCAL P-SUPPLY J3503 VSX-LX50 ONLY VSX-LX50...
Page 99 Heat Sink 45 ANH7152 Screw BBZ30P080FCC PCB Angle 45 ANG7406 Mica Sheet 45 AEE7047 (2) CONTRAST TABLE VSX-LX50/HYXJ5, VSX-91TXH/KUXJ/CA and VSX-9120TXH-K/KUXJ are constructed the same except for the fol- lowing: VSX-LX50/ VSX-91TXH/ VSX-9120TXH-K/ Mark No. Symbol and Description HYXJ5 KUXJ/CA...
Page 100: Front Panel Section
9.6 FRONT PANEL SECTION TRANS SIDE 3201 MAIN CONTROL CN101 VSX-91TXH ONLY ∗a USB CN701 MAIN CONTROL CN113 ∗b ∗a VSX-LX50...
Page 101 See Contrast table (2) NSP 15 Side Button AAD7761 NSP 16 Func BTN Assy AAD7758 (2) CONTRAST TABLE VSX-LX50/HYXJ5, VSX-91TXH/KUXJ/CA and VSX-9120TXH-K/KUXJ are constructed the same except for the fol- lowing: VSX-LX50/ VSX-91TXH/ VSX-9120TXH-K/ Mark No. Symbol and Description HYXJ5...
Page 102: Schematic Diagram
CN526 (1/2) 8820 8820 8821 (SR) 8821 R516 INSR1 C568 47/25 R571 0Ω (SBL) AKB7182 C569 47/25 R517 CN501 INSBL1 CN521 3071 (SBin) CN526 CN522 (2/2) CN524 AKB7172 CN525 CN526 CN401 (SBR) R518 INSBR1 C570 47/25 C645 GNDCH 0.01 VSX-LX50...
Page 103 AUDIO IN ASSY (VSX-LX50 : AWX8821) (VSX-91TXH, VSX-9120TXH : AWX8820) 8820 8821 IC761 (1/2) C767 Low Pass Filter BA4560RF V+12A (SL) R703~R706 3.3K C761 R763 R765 R767 (SL) (SL) R777 C769 R709,R710 4.7K 2.2/50 INSL2 R713,R714 10/50 (ADCL) R711,R712 R771...
Page 104: Audio In (2/2) And 12V-Reg Assys
HDEO V+5D(HDMI) UGRTN HD MUTEO HD REQI UGRTN V+5DUN(HDMI) DAC RESET VLCK VCLK HDREQI HDEO ADC RESET VLDT HD MUTEO R572 HDMI SW LSSN LSSN GND U HD RESET LSINT LSINT GURTN GNDU1 GNDU GNDA TO DSP ASSY GDAC VSX-LX50...
Page 105 AUDIO IN ASSY (VSX-LX50 : AWX8821) HIGH (VSX-91TXH, VSX-9120TXH : AWX8820) 91TXH/KUCA AWX8820 9120TXH/KUCA LX50/HY AWX8821 PRE-AMP V+12A C801 IC801 (2/2) (FO) (FO) 4.7/50 uPC4570G2 C807 47/25 R805 6.8K (SO) Q801 STBY R811 R803 C805 100p STBY (CO) V-12A R804...
Page 106: Main Control Assy (1/3)
10.3 MAIN CONTROL ASSY (1/3) MAIN CONTROL ASSY (VSX-LX50 : AWX8817) (VSX-91TXH, VSX-9120TXH : AWX8816) V+5UM SIMUKE R155 2.2k R153 R154 R151 R152 R156 UART1 AWX8816 ONLY UART2 XMERR DHREQ R160 V+5US DHREQ DHDI R111 100k R157 100k C104 0.1/16...
Page 107 R194 MEXDT0 12TRG1 R195 stby SBMUTE J101 J102 Q104 (2/2) RT1P241M UMB1N Q110 D107 SIRIUS_TX SIRIUS_TX AWX8816 DAN202U ONLY SIRIUS_RX RDS SW / XMRST SIRIUS_RX PORT EXPANDER SIRIUS_RSET SIRIUS_RESET MRSP IC109 (4/4) RT1P241M PF03GG-Q12 PF03GG-Q12 TC74VHCT32AFT (1/2) (2/2) (XM) VSX-LX50...
Page 108: Main Control (2/3), Guard-C And Guard-F Assys
10.4 MAIN CONTROL (2/3), GUARD-C and GUARD-F ASSYS MAIN CONTROL ASSY (VSX-LX50 : AWX8817) (VSX-91TXH, VSX-9120TXH : AWX8816) V+3DD V+3DD1 L301 QTL1013 GNDU R334 99 98 97 80 79 78 77 76 R312 R311 4.7k DQ11 DSP2SSI BUSY DQ12 DSP2BUSY...
Page 109 Unit: k-kΩ, M-MΩ or Ω unless otherwise noted. Rated power: 1/16W unless otherwise noted. ± Tolerance: (J) 5% unless otherwise noted. 2.CAPACITORS μ Unit: p-pF or F unless otherwise noted. μ Ratings: Capacity( F)/Voltage(V) unless otherwise noted. Rated Voltage: 50V except for electrolytic capacitors. VSX-LX50...
Page 110: Main Control Assy (3/3)
GNDVC GNDVC GNDVC SIRIUS_R GNDA GNDVC CbIN GNDVC CrIN GNDVC uGRTN GNDVC V-7A GNDVC CrIN uGRTN GNDVC CbIN VLCK GNDVC GNDVC VLCK GNDVC VLDT YOUT VLDT GNDVC R385 GNDVC GNDU CbOUT stby GNDVC GNDVC GNDU GNDU GNDVC CrOUT (uGRTN) VSX-LX50...
Page 111 MAIN CONTROL ASSY (VSX-LX50 : AWX8817) (VSX-91TXH, VSX-9120TXH : AWX8816) V+5US CONT5V C128 0.1/16 V+3DD1 D114 R181 1SS355 C317 IC107 SRTX 0.1/16 (4/4) (1/4) IC106 TC74VHCT125AFTS1 HDRDY5 IPTX IC107 (2/4) HDRDY XHRST5 XHRST UART2 IC305 IC306 (2/4) (4/4) L:SR GNDU...
Page 112: Dsp Assy (1/4)
10.6 DSP ASSY (1/4) DSP ASSY (VSX-LX50 : AWX8814) (VSX-91TXH, VSX-9120TXH : AWX8813) R365 COAX stby L351 C353 stby COAX1 0.01 C354 V3D2 COAX2 L352 0.01 V32A R320 JA351 stby AWX8814:AKB7131 R366 L305 AWX8813:AKB7173 stby R307 stby R306 stby R322...
Page 113 YB 0.1 (2125) GDAC GNDD C924 (A/D) CEVW***M** C931 YB 470p CN901 RS1/16SS***J (1005) CKS1764 stby GDAC GNDD (BTEM20P-1R) (DIR) GDAC GNDD RS1/16S***J (1608) (8chD/A) C932 C929 RAB4CQ***J stby stby UNLESS OTHERWISE NOTED GDAC GNDD GDAC GNDD (2chD/A) (A/D) CN507 VSX-LX50...
Page 114: Dsp Assy (2/4)
AD15 AD14 R164 AD13 R163 NOTES AD12 IC109 INDICATED PARTS IS... TC7SH32FUS1 AD11 CCSSCH****50 AD10 CCSRYB***K50 R153 (1005) CKSSYB103K16 CKSSYB104K10 R154 4.7k CCSRCH471J50 CKSRYB104K16 (1608) CKSRYB474K10 CKSRYB105K16 GNDD CKSQYB225K10 (2125) CEVW***M** RS1/16SS***J (1005) RS1/16S***J (1608) RAB4CQ***J UNLESS OTHERWISE NOTED VSX-LX50...
Page 115 DSP ASSY IC101 BOTTOM VIEW IC101 TOP VIEW (VSX-LX50 : AWX8814) 14 13 12 11 10 9 10 11 12 13 14 (VSX-91TXH, VSX-9120TXH : AWX8813) VDDINT : Audio Data Route VDDEXT AVSS AVDD I/O SIGNALS V1D1 V3D2 V11A V31B...
Page 116: Dsp Assy (3/4)
10.8 DSP ASSY (3/4) DSP ASSY (VSX-LX50 : AWX8814) 1/4, 2/4, 4/4 (VSX-91TXH, VSX-9120TXH : AWX8813) AWX8813 ONLY R525 XMLNK3 R524 XMFS3 XMRST3 R523 XMANT3 V5X1 V32C R518 XMDI3 * IC401 Pin Function XM/DT IC Rev. R531 XMDO3 R519 V3D2...
Page 117 DECODER R222 PINIT CK51 R220 UCOM EXTAL CK52 VDDIO VDDPD GNDPD OSC2 GNDPP GNDSP R209 4.7k R227 stby C211 C209 C207 470p 470p stby C210 C212 C208 R219 4.7k C213 stby C214 stby C215 stby R206 stby R208 stby VSX-LX50...
Page 118: Dsp Assy (4/4)
CK254 XMMUT3 CK255 R806 XMSW3 CK256 100k LSINT CK257 R810 100k CK105 GNDD R964 100k R951 100k R962 100k GNDD R961 stby R955 R956 stby 4.7k R957 stby CN951 CN953* GNDD XKP3083 VKN1416 GNDD VSX-91TXH, CN512 CN305 VSX-9120TXH ONLY VSX-LX50...
Page 119 DSP ASSY (VSX-LX50 : AWX8814) 1/4 - 3/4 (VSX-91TXH, VSX-9120TXH : AWX8813) : Audio Data Route XMMK DT0O CK201 CK227 XMLK DT1O CK202 CK228 XMBK DT2O CK203 CK229 XMFD DT3O CK204 CK230 R616 R615 MCLK VSX-LX50 ONLY CK205 CK231 MCK1...
Page 120: Composite Assy
10.10 COMPOSITE ASSY COMPOSITE ASSY (VSX-LX50 : AWX8842) (VSX-91TXH, VSX-9120TXH : AWX8841) IC1001 INPUT SELECTOR FOR VIDEO JA1001 JA1002 JA1003 JA1004 JA1005 JA1006 8841 AKB7176 AKB7181 MUTE DVR/VCR1 8842 AKB7176 AKB7175 DVR/VCR2 IC1003 SELECTOR FOR DVCorTHRU VIDEO THRU MUTE V+5V...
Page 121 R1158 R1160 R1162 R1166 V+7A 8841 M61545FP 100K STBY STBY C1151 C1153 C1155 C1157 C1161 Q1151 C1164 C1159 C1160 D1112 C1152 C1154 C1156 C1158 C1162 8841 IMX25 0.01 2.2/50 2.2/50 100p 330p 0.1/50 10/50 100p DAN217U V-7A CN111 CN110 VSX-LX50...
Page 122: S-Video And Bridge 2 Assys
10.11 S-VIDEO and BRIDGE 2 ASSYS S-VIDEO ASSY (VSX-LX50 : AWX8845) (VSX-91TXH, VSX-9120TXH : AWX8844) (SY) V+5S V+5S DVDIN_Y C1201 DVDIN_C V+5S Q1201 C1241 R1257 0.1/16 DVD/LD IN (SC) RT1N241M R1248 D1205 CN1204 (1/3) 0.1/16 1SS355 C1220 Y MAIN IC1206...
Page 123 V+5_6V V+5S GNDA GNDA D1251 GNDA GNDA V+12TRG GNDA GNDA CN1204 CN1205 CN1206 V+12T 8844,8845 XKB3052 XKB3051 GNDA GNDA V-5_6V (SO) V-5S GNDA GNDA (SWO) GNDU GNDA GNDA (CO) GNDA GNDA SBRO SBRO GNDA GNDA (SBO) SBLO SBLO CN3803 VSX-LX50...
Page 124: Component Assy
(CHASSIS) C1497 CN1401 (SW) : Audio Signal Route (SubWoofer ch) XKP3077 STBY C1498 : Video Signal Route (Component Y ch) STBY (Cb) : Video Signal Route (Component Cb ch) GNDU CN107 (Cr) : Video Signal Route (Component Cr ch) VSX-LX50...
Page 125 COMPONENT ASSY IC2405 V+5C V+5_6V V+3C (VSX-LX50 : AWX8848) VMUTE MONI.OUT 1401 Q1401 2SC4081(RS) MUTE (VSX-91TXH, VSX-9120TXH : AWX8847) THRU VEF1040 JA1402 (2/2) V+5C XKB3053 R1470 STBY C1425 C1426 100/10 (Cb) 100/10 R1410 Q1402 C1427 C1428 2SA1576A(RS) 0.1/16 0.1/16 V-5C...
Page 126: Display, Volume And Multi Jog Assys
10.13 DISPLAY, VOLUME and MULTI JOG ASSYS DISPLAY ASSY (VSX-LX50 : AWX8874) (VSX-91TXH, VSX-9120TXH : AWX8873) V2301 AAV7113- ( 2301 FL HOLDER VNF1096-) 58 57 50 49 48 47 31 30 29 28 27 26 25 24 19 18 14 13...
Page 127: Multi Jog Assy
MULTI JOG ASSY (VSX-LX50 : AWX8880) (VSX-91TXH, VSX-9120TXH : AWX8879) J2501 D20PDD1715E V+5UH 2302 2501 V+5U1 V+5UH1 V+5U 51048-1700 51048-1700 S2551 S2552 S2553 S2554 S2555 S2556 S2557 S2558 S2565 S2566 S2572 S2573 S2577 *KEY NAME VSX-91TXH CD-R VIDEO DVR1/ Multi...
Page 128: Headphone, Front-In, Primary And Trans 1 Assys
PHONE L2851 STBY GNDHP HEADPHONE (HP) R2852 (HP) GNDHP1 GNDHP2 (HPL) KN2851 VNF1084 GNDCH GNDCHH (CHASSIS) FRONT-IN ASSY (VSX-LX50 : AWX8955) (VSX-91TXH, VSX-9120TXH : AWX8954) JA2751 V+5USB XKP3086 CN2652 R2753 stby R2751 B4B-PH-K-S L2752 VBUS V+5D VTL1169 L2751 GBUS R2752...
Page 129 PRIMARY ASSY (VSX-LX50 : AWX9035) (VSX-91TXH, VSX-9120TXH : AWX9034) CN2002 KP200TA5L 9034,9035 T2001 ATT7043 BLUE C2009 3300/25 ATT7040 C2012 CN2001 IC2002 KP200TA9L 50/60Hz STBY W.UP R2004 D2004 W2015 RYAC 1SS355 3.3k T2001 IC2001 NJM78M56FA V+5.6ST +5.6V Q2001 W2010 RT1N431M W2011...
Page 130: Trans 2-1, Diode 1, Vh Tr, Bridge 1 And Ps/Sp Assys
10.15 TRANS 2-1, DIODE 1, VH TR, BRIDGE 1 and PS/SP ASSYS DIODE 1 ASSY (AWX9060) TRANS 2-1 ASSY (VSX-LX50 : AWX9059) (VSX-91TXH, VSX-9120TXH : AWX9058) Y9:ADX7502(BWN) CAUTION : FOR CONTINUED PROTECTION AGAINST Y11:ADX7504(RED) RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO.
Page 131 PS/SP ASSY (VSX-LX50 : AWX9107) (VSX-91TXH, VSX-9120TXH : AWX9052) CN3101 CN3102 AKC7003 AKC7002 GAMP Y13:ADX7512(BLK) +56V R3024 R3014 STBY STBY CN3001 R3011 VSX-LX50 : AKE7119 VSX-91TXH, 4.7(1/2W) GAMP VSX-9120TXH : AKE7118 (FO) (FO) L3011 RY3001 C3101, C3102 ATH1053 1.5u VSX-LX50 : ACH7255...
Page 132: Trans 2-2, Trans Side, Local P-Supply, Dc/Dc, Ir I/O And Video Connect Assys
FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. D3504,D3505, REPLACE WITH SAME TYPE AND D3506,D3507: RATINGS OF FUSE. UDZS6R2(B) D3503 -28V VSX-LX50 : REK1028 (T4AL/250V) C3502 1SR154-400 R3503 VSX-91TXH, VSX-9120TXH : REK1067 (5A/125V) FU5, FU6 100/35 VSX-LX50 : REK1021 (T800mAL/250V) (1/4W) VSX-LX50 ONLY VSX-91TXH, VSX-9120TXH : REK1143 (1.25A/125V)
Page 133 IR I/O ASSY : Audio Signal Route (L ch) (VSX-LX50 : AWX9067) : Audio Data Route (VSX-91TXH, VSX-9120TXH : AWX9066) 3502 J3502 CN3701 V+5_6U D20PDY0915E V+5_6U 51048-0900 VKN1241 OPT OUT VSX-91TXH, VSX-9120TXH ONLY GNDD JA3702 L3701 RKN1004 GNDD OPT IN3...
Page 134: Power Amp-L, Posi 1-L And Posi 2-L Assys
10.17 POWER AMP-L, POSI 1-L and POSI 2-L ASSYS POWER AMP-L ASSY (VSX-LX50 : AWX9072) (VSX-91TXH, VSX-9120TXH : AWX9071) D5002-D5004 : 1SS355 VSX-LX50 ONLY POSI 1-L ASSY (VSX-LX50 : AWX9081) Q5004 Q5003 (FL) 2SA1514K(RS) (VSX-91TXH, VSX-9120TXH POSI 2-L ASSY : AWX9080)
Page 135 ADX7458 CN3005 (5W+5W) (GRAY) R5244 R5250 Q5272 IC5202 (SBL) SAP17P(OY) R5222 C5212 R5226 J5005 ACG7056 R5224 (0.5W) 100p/200 ADB7021 0.047 Q5271 ACN7132 (1/4W) STBY C5611 J5006 R5292 ADB7022 (0.5W) 0.047 100p/200 ACN7132 R5621 ACG7056 IC5601 R5615 SAP17N(OY) STBY R5613 VSX-LX50...
Page 136: Power Amp-R And Posi 1-R Assys
10.18 POWER AMP-R and POSI 1-R ASSYS POWER AMP-R ASSY (VSX-LX50 : AWX9073) (VSX-91TXH, VSX-9120TXH : AWX9106) D5302-D5304 : 1SS355 POSI 1-R ASSY Q5303 2SA1514K(RS) (VSX-LX50 : AWX9084) Q5304 2SA1145(OY) (VSX-91TXH, VSX-9120TXH : AWX9083) C5305 C5306 TH4503 stby stby VSX-LX50 :...
Page 137 2SA1255(OY) R5543 D5543 1SS355 R5527 ACN7121 0.18+0.18 (2/2) (5W+5W) ADX7460 CN3006 (BROWN) R5544 R5550 IC5502 R5522 SAP17P(OY) C5512 R5526 ACG7056 ACN7132 (0.5W) 0.047 R5524 100p/200 (1/4W) DC_DET J5306 ADB7021 IC5602 R5622 SAP17P(OY) C5612 R5592 (0.5W) ACG7056 ACN7132 0.047 100p/200 VSX-LX50...
Page 138: Power Amp In And Power Protect Assys
10.19 POWER AMP IN and POWER PROTECT ASSYS VSX-LX50...
Page 139 Tolerance: (J) ±5% unless otherwise noted. 2.CAPACITORS Unit: p-pF or μF unless otherwise noted. Ratings: Capacity(μF)/Voltage(V) unless otherwise noted. Rated Voltage: 50V expect for electrolytic capacitors. R5624 (1/4W) 4.7 CN5605 KP250NA6 CN5003 VSX-LX50 ONLY CN5706 S3B-EH F.FAN+ F.FAN- FRONT FAN OUTPUT LEVEL DET D5702 F.STOP...
Page 140: Hdmi & Dvc Assy (1/2)
A0(NC) R1X0+ Data0+ A1(NC) R1X1- Data1- A2(NC) R172 Data1 Shield R1X1+ R171 Data1+ R1X2- Data2- GNDD Data2 Shield R1X2+ Data2+ Q172 V+3RX DTC114YUA GNDD GNDD GNDD R169 R193 Q173 V+5R1 R194 STBY GNDD GNDC DSDA1 DSCL1 GNDD GNDD R170 VSX-LX50...
Page 141 /DL2O R205 GNDD V+3TX C202 R210 MCLKI MCLK DATAI R209 R206 Chip Size BCKI RESISTOR UMB1N LRCKI : 1608Size R208 R207 RS1/10S~ : 1608Size IC202 GNDD RS1/16S~ TC74VHC125FTS1 CAPACITOR HN1K01FU : 3216Size : 2125Size CKSQ**~ : 1608Size CCSR**~ CKSR**~ VSX-LX50...
Page 142: Hdmi & Dvc Assy (2/2)
AIN8 AGND 89 AIN1 VCS(Y) C423 AIN7 R417 (C'site) C422 R456 C421 1000p R421 IC454 R422 TC74LCX541FTS1 C454 GNDD R457 GNDA GNDD V+1R8VC V+3R3VC IC402 TC7WHU04FU R463 C491 STBY R458 GNDD GNDC R461 GNDD X401 ASS7069 GNDD 28.63636M GNDD VSX-LX50...
Page 143 Cb OUT VC(Cr) GNDA Q771 Cr OUT 2SA1576A(RS) V+5A R1101 GNDD R1102 FRONT SIDE R784 STBY GNDD GNDD GNDA Q781 2SA1576A(RS) Chip Size RESISTOR : 2125Size RS1/10S~ GNDD : 1608Size RS1/16S~ CAPACITOR : 2125Size CKSQ**~ : 1608Size CCSR**~ CKSR**~ VSX-LX50...
Page 144: Usb Assy (Vsx-Lx50 Only)
10.22 USB ASSY (VSX-LX50 ONLY) USB ASSY (AWX8866) V5USB R731 CN701 STBY KM200NA4 V+3R3 L731 VTL1169 V5USB R737 USBH_D- L733 USBH_D+ VTH1043 C732 R738 L732 V18D V+1R8 P187 STBY 0.1 YB V+3R3 R734 L703 C731 L704 QTL1013 R732 100/16 QTL1013...
Page 145 C741 100/16 GNDD Chip Size RESISTOR : 2125Size RS1/10S~ : 1608Size RS1/16S~ V+3R3 V+5D : 1005Size RS1/16SS~ CAPACITOR : 2125Size CKSQ**~ GNDD : 1608Size CCSR**~ CKSR**~ : 1005Size CCSS**~ CKSS**~ SDCLK GNDD GNDD ELECTRIC CAPS SDCKE JQ : CEJQ***M** VSX-LX50...
Page 146 VSX-LX50...
Page 147: Pcb Connection Diagram
Symbol In PCB Symbol In Schematic Part Name Diagrams Diagrams C E B Capacitor Connector Transistor B C E SIDE A Transistor with resistor B C E Field effect SIDE B Chip Part P.C.Board transistor Resistor array 3-terminal regulator VSX-LX50...
Page 148: Audio In Assy
R781 R782 R741 CN661 CN516 J664 IC663 C794 C793 NJM78M12 PRINTED SIDE J663 1.V+7D 2.GRTN Y661 3.V+5D CN661 [[ G ]] C662 C661 CN513 A30C5/C7 CN511 AUDIO IN ASSY AWX8820 AWX8823 CN516 AWX8821 PRODUCTION CODE AWX8822 ABH7245 C606 C605 VSX-LX50...
Page 149 CRE R 2.VDT 1.GNDU Y661 R563 IC501 R564 C746 C765 C766 C705 C706 CN509 CD L C744 C763 C764 C703 C704 Q701 R742 R761 R762 R701 R702 R733 CD R C599 C600 C598 C597 CN507 CN512 CN501 ABH7245 C606 (ANP7596-B) VSX-LX50...
Page 150 19.iPODR 15.CO 18.MRL 17.MRR R506 16.TL 15.TR 16.GNDA(GDAC) 14.V+7A 17.SBRO 13.V-7A 18.GNDA(GDAC) R503 12.FVL 19.SBLO 11.FVR 20.VCOMG2 10.GNDA 21.XMR 9.GNDA 22.XML R504 8.SIRIUSL 23.LSINT 7.SIRIUSR 6.MIC 1.LSSCL 5.UGRTN R572 2.LSSDA 4.UGRTN 3.VCLK 2.VDT 1.GNDU (ANP7596-B) CN507 CN509 CN501 CN512 VSX-LX50...
Page 151 SIDE B J662 AUDIO IN ASSY D670 R666 R663 D669 J664 CN661 1.V+7D 2.GRTN 3.V+5D C611 C607 CN511 CN513 CN516 VSX-LX50...
Page 152: Reg Assy
11.2 12V-REG ASSY SIDE A SIDE A 12V-REG ASSY IC661 IC662 NJM78M12 NJM79M12 PRINTED SIDE PRINTED SIDE J663 PRODUCTION CODE 12V REG ASSY [[ G ]] AWX8824 A30C5/C7 (ANP7596-B) J663 J664 SIDE B SIDE B J663 C666 C668 (ANP7596-B) 12V-REG ASSY VSX-LX50...
Page 153: Bridge 2 Assy
CMKM-P3X 17.SBLO 16.GNDA 15.SBRO 17.SBLO 14.GNDA 16.GNDA 13.CO 15.SBRO 14.GNDA 12.GNDA 13.CO 11.SWO 12.GNDA 10.GNDA 11.SWO 9.SLO 10.GNDA 8.GNDA 9.SLO 8.GNDA 7.SRO 7.SRO 6.GNDA 6.GNDA 5.FLO 5.FLO 4.GNDA 4.GNDA 3.GNDA 3.GNDA 2.FRO 2.FRO 1.V-12A 1.V-12A (ANP7598-B) BRIDGE 2 ASSY VSX-LX50...
Page 154: Main Control Assy
CN108 CN109 1.V-7A V+7A SIRIUS L L295 GNDA SIRIUS R R291 L291 IC308 IC306 L292 D291 L293 JA291 CN111 L294 CN110 IC107 R187 R193 R185 [[ G ]] A30C5/C7 R346 IC304 PRODUCTIO CN109 CN112 CN110 CN112 CN1202 CN1001 CN509 VSX-LX50...
Page 155 C309 R308 15.EX ST IC305 IC302 R312 R307 R301 IC308 R315 R314 X301 R310 R302 C304 IC107 C305 C306 R187 R180 R185 R9005 R330 R9003 R309 R9010 R9007 R9006 R9002 PRODUCTION CN302 CODE CN301 CN301 CN302 (ANP7596-B) CN511 CN513 VSX-LX50...
Page 156 9.VF- 29.-VF 8.FLAC2 12.MRIN 7.FLAC1 MAIN CONTROL Ass'y 13.1W WP 6.iPodPOWER 14.EX CK 5.FANSTOP 15.EX ST 4.FANDRIVE 16.EX OE 3.V+5_6U AWX8818 AWX8816 17.EX DT0 2.GNDU 1.GNDU AWX8819 AWX8817 R352 R337 R317 R333 Q302 R326 R325 R361 R324 CN302 CN301 VSX-LX50...
Page 157 Q102 17.V+5D 16.FOPT 15.GNDD 14.GNDD 13.FVC R282 12.FVY 11.FV 10.GAV R116 9.GAV Q101 Q111 8.MICDET 7.MICOUT 6.GNDA 5.GNDA R281 4.FVL 3.FVR 2.V+7A SIRIUS_RESET 1.V-7A SIRIUS_RX 1.SIRIUS_TX 1.V-7A V+7A SIRIUS L R352 GNDA Q107 SIRIUS R Q108 R357 (ANP7596-B) CN112 VSX-LX50...
Page 158: Dsp Assy
R101 R123 L103 R127 R214 R119 C140 R106 R122 C211 R116 C212 R136 R966 R104 R134 R103 R132 R977 X551 IC901 R555 C553 R138 R554 C552 R128 R962 C551 R951 C901 R961 C556 R903 C904 C557 C451 C452 CN951 VSX-LX50...
Page 159 C914 C929 R312 C414 IC261 C408 C928 R461 C410 C412 R517 R924 C551 R263 C930 CN901 R313 R917 R913 R951 R532 C915 C925 R915 C912 R916 C926 C913 R923 CN401 CN402 CN951 CN951 CN401 CN901 (ANP7610-B) CN512 CN501 CN507 VSX-LX50...
Page 160 R407 R351 C908 R261 L451 C460 C351 C923 R319 R453 C924 R403 R465 C916 R227 R466 R231 L482 C461 R918 L401 R228 R251 C462 R225 D401 R249 R921 R557 R922 R266 R912 R910 D901 IC904 D902 CN901 CN401 CN951 VSX-LX50...
Page 161 R221 C108 C103 AWX8813- R202 R207 C214 C213 R980 L107 R215 AWX8814- R212 C136 R217 C125 C124 R226 C126 C123 C135 C133 DSP ASS'Y R227 R144 R143 R228 R225 R557 R154 R164 L106 IC109 L105 R148 IC105 CN951 (ANP7610-B) VSX-LX50...
Page 162: Composite Assy
JA1006 C1153 C1151 R1159 C1005 C1006 C1003 C1004 C1152 C1002 C1154 IC1151 C1001 D1112 L1003 CMKM-P3X X1001 R1015 R1016 VOS2 C1028 Direct Pass [[ G ]] A30C5/C7 VOS1 CN1002 R1042 C1043 C1027 IC1006 C1032 C1031 C1033 R1034 CN1002 CN3802 VSX-LX50...
Page 163 AWX8843 V+7A V+12A 5.V-7A MR R AWX8852 iPODL GNDA GNDA 5.GNDA AWX8853 GNDA C1126 MR L 1.iPODR C1125 MRMUTE AWX8854 CN1003 VLCK Q1002 1.VLDT R1051 AWX8855 R1164 CN1001 R1049 C1011 COMPOSITE ASSY C1012 R1014 CN1002 CN3802 PRODUCTION CODE (ANP7598-B) VSX-LX50...
Page 164 VIDEO MONITOR 5.V-7A R1105 iPODL GNDA GNDA 1.iPODR CN1003 R1110 V+5_6V V-5_6V L1002 C1047 R1115 R1116 R1046 Q1004 AWX8841 AWX8854 AWX8842 11.GAV AWX8843 5.GNDA 10.GAV MR L AWX8855 AWX8852 MRMUTE V+12A VLCK MR R AWX8853 CN1001 1.VLDT GNDA (ANP7598-B) VSX-LX50...
Page 165 SIDE B MR R MR L DVR IN EVOLIN MR L Q1151 MR R IC1005 D1007 D1001 D1002 COMPOSITE ASSY V+5_6V -5_6V D1005 CN1002 VSX-LX50...
Page 166: S-Video Assy
D1606 R1628 R1627 C1232 Q1351 R1230 C1621 L1351 L1601 R1626 C1610 R1228 R1616 C1230 IC12 D1351 C1609 R1615 AWX8844 C1227 C1229 C1231 AWX8857 AWX8845 C1615 C1252 C1251 AWX8846 AWX8856 C1614 CN1601 1601 C1613 S-VIDEO ASSY C1616 CN1203 CN1203 CN3803 VSX-LX50...
Page 167 C1303 C1217 C1306 C1307 IC1201 C1308 C1232 R1230 C1301 C1304 L1302 IC1301 R1302 R1228 C1230 IC1202 C1219 C1242 R1248 C1241 D1205 R1257 C1243 C1221 R1235 AWX8857 C1223 AWX8858 IC1203 C1222 AWX8859 C1224 L1201 C1249 R1255 R1312 R1313 R1314 (ANP7598-B) VSX-LX50...
Page 168 SIDE B S-VIDEO ASSY DVD IN DVR1 C1294 DVR1 C1293 D1301 R1219 FOR_SERVICE DVC_DIRECT_PASS. C1220 R1220 L1301 C1250 C1244 L1202 R1236 Q1206 R1256 0 1 2 3 4 5 6 7 8 9 0 1 2 3 VSX-LX50...
Page 169 C1292 DVR2 DVR1 IN DVR2 MONITOR C1293 C1355 C1602 C1354 R1602 C1601 R1604 R1601 R1603 C1604 RVICE R1231 ASS. Q1353 R1355 C1603 R1356 V-5S R1607 R1608 C1228 S-VIDEO ASSY AWX8844 AWX8845 R1622 AWX8846 AWX8857 AWX8858 AWX8859 AWX8856 CN1203 (ANP7598-B) VSX-LX50...
Page 170: Component Assy
11.8 COMPONENT ASSY SIDE A COMPONENT ASSY C1551 C1549 C1532 C1548 C1533 C1547 C1531 Rout Bout JA140 CN1501 PRODUCTION CODE C1430 C1429 R1574 AWX8847 AWX8848 CN1406 R1576 CN1403 COMPON 1.VMUTE 5.EXPDT1 6.OSDCK 2.S53ABC /EXPCK 3.EXPST 4.EXPOE 7.OSDDT CN1406 CN1403 CN5603 CN3804 VSX-LX50...
Page 171 C1464 C1463 AWX8849 R1436 R1437 AWX8860 C1473 R1438 C1456 AWX8847 AWX8861 AWX8848 AWX8862 COMPONENT ASS'Y .VMUTE 5.EXPDT1 8.OSDCS 6.OSDCK 2.S53ABC 11.GAV 9.OSDRT /EXPCK 3.EXPST 12.V+5.6V 10.GAV [[ G ]] 4.EXPOE 7.OSDDT 13.V-5.6V C1467 C1466 C1468 A30C5/C7 CN1404 1401 (ANP7598-B) VSX-LX50...
Page 172 SIDE B COMPONENT ASSY C1403 R1403 C1404 C1401 C1493 R1409 C1406 R1404 Yout R1581 R1410 R1470 IC1404 C1435 R1461 Q1415 R1462 C1433 R1464 R1465 Q1416 R1463 C1444 R1469 R1468 V+5C C1431 C1432 R1419 R1420 R1442 VSX-LX50...
Page 173 SIDE B R1527 R1507 C1493 R1409 R1548 R1508 R1547 R1528 C1521 C1501 R1568 C1542 C1502 C1541 C1522 C1562 Rout C1561 R1567 SBLO GNDA SBRO GNDA V-5C GNDA V+5C C1432 GNDA R1420 GNDA GNDA GNDA GNDA V-12A CN1403 CN1406 (ANP7598-B) VSX-LX50...
Page 174: Display Assy
SIDE A DISPLAY ASSY Production Code V2301 62 62 C2360 D2410 W2470 D2412 HDMI [MCACC] PHASE CONTROL W2447 LED14 2301 W2423 LED13 W2420 GNDU DIGITAL P W2422 MJOGB W2421 MJOGA DISPL AWX88 AWX88 AWX88 AWX88 AWX88 AWX88 AWX91 AWX91 PNE-1B1 VSX-LX50...
Page 175 W2461 GNDU W2456 VENCB W2454 VENCA 2301 D2414 W2440 X2301 DISPRST DIGITAL PROCESSING W2442 DISPLAY ASSY DISPRST W2445 VENCB AWX8873 W2444 W2438 VENCA AWX8874 W2443 GNDU AWX8875 AWX8876 AWX9040 AWX8877 AWX9041 W2418 MRIN AWX8878 AWX9042 AWX9043 AWX9103 AWX9104 (ANP7562-E) VSX-LX50...
Page 176 21.DISP EN 8.GNDU 20.HPDET DIGITAL PROCESSING 7.MICDET 29.12V DET MRIN 19.XiPod 6.SRIN 28.232CDET AWX8873 AWX8876 5.RMC 27.TEMP2 4.SROUT AWX8874 AWX8877 3.FLAC1 AWX8875 AWX8878 2.FLAC2 1.VF 0 1 2 3 0 1 2 3 4 5 6 7 8 9 VSX-LX50...
Page 177 SIDE B DISPLAY ASSY AWX9040 AWX9103 AWX9041 AWX9104 HDMI [MCACC] AWX9042 AWX9043 PHASE CONTROL LED14 LED13 GNDU MJOGB MJOGA 1.V+5U 2.V+5UH 3.KEY1 4.KEY2 5.KEY3 6.LED11 7.LED10 8.LED9 9.LED16 10.EXCK 11.EXSTB 12.EXOE 13.EXDAT 14.EXQS 15.GNDU PNE-1B1 16.MJOGB 17.MJOGA (ANP7562-E) VSX-LX50...
Page 178: Volume Assy
S2453 Multi ch IN Sound Retriver SBch PROCESSING PNE-1B1 W2491 VENCB S2454 (ANP7562-E) SIDE B SIDE B PNE-1B1 VOLUME ASSY VENCB 4.BENCA 3.VENCB 2.KEY4 1.GNDU SBch PROCESSING Sound Retriver Multi CH IN SIGNAL SELECT AWX9111 AWX9044 VOLUME ASSY (ANP7562-E) VSX-LX50...
Page 179: Headphone Assy
11.11 HEADPHONE ASSY SIDE A SIDE A HEADPHONE ASSY CN2851 1.HPDET 2.HPR 3201 3.GNDHP 4.HPL KN2851 (ANP7562-E) SIDE B SIDE B HEADPHONE ASSY C2854 C2855 (ANP7562-E) VSX-LX50...
Page 180: Multi Jog Assy
[DVR1/DVR2] W2510 V+5UH 123.0mm W2509 W2508 V+5U GNDU W2512 GNDU MULTI JOG ASSY 123.0mm S2561 ENTER W2502 EXQS AWX9045 W2501 AWX9046 EXOE AWX9112 AWX9113 W2504 EXQS S2501 S2562 S2563 S2564 S2565 S2566 System TUNING/STATION TUNER ED RETURN TONE SETUP VSX-LX50...
Page 181 S2558 W2539 DVR/VCR2 VIDEO/GAME CD-R/TAPE iPod Tuner HDMI Multi CH IN VIDEO SELECT [VIDEO/GAME] [CD] [CD-R/TAPE] [Tuner] [XM] [iPod] [SIRIUS] [MULTI CH IN] [SIRIUS] (ANP7562-E) AWX8879 AWX8880 W2504 AWX8881 EXQS AWX8882 S2565 S2566 S2567 TUNING/STATION TUNER EDIT SPEAKERS PNE-1B1 VSX-LX50...
Page 182 MULTI JOG ASSY R250 HDMI iPod DVR/VCR2 [SIRIUS] TUNER [CD-R/ VIDEO/GAME VIDEO SELECT Multi CH IN [VIDEO/ [XM] CD-R/TAPE TAPE] [CD] GAME] [SIRIUS] [iPod] [TUNER] V+5UH [MULTI CH IN] AWX8879 AWX8880 AWX8881 AWX8882 EXQS TUNING/ TUNER EDIT SPEAKERS STATION VSX-LX50...
Page 183 MR ON/OFF (Phase Control) DVD/LD DVR/VCR2 Listening Mode DVR/VCR1 TV/SAT MR CONTROL KEY1 [VIDEO/ [DVR1/DVR2] (Acoustic EQ) V+5UH GAME] GNDU V+5UH V+5UH V+5U GNDU GNDU R2580 EXQS EXOE PNE-1B1 EXQS (ANP7562-E) TONE RETURN SYSTEM TUNING/ ER EDIT SETUP STATION VSX-LX50...
Page 184: Front-In Assy
C2715 C2755 W2612 C2716 FRONT IN C2712 CN2652 ASSY KN3351 W2610 C2706 AWX8954 AWX9047 AWX8955 AWX9048 W2606 1.V+5D 2.FOPT 3.GNDD 4.GNDD 5.FV-C 6.FV-Y 7.FV W2604 8.GAV 9.GAV 10.MICDET PNE-1B1 11.MICOUT W2600 12.GNDA 13.GNDA 14.FV-L 15.FV-R 16.V+7A 17.V-7A CN2651 CN113 VSX-LX50...
Page 185 SIDE A JA2652 JA2651 W2616 GNDA W2612 W2617 GNDA RONT IN C2653 KN2651 ASSY W2613 GNDA GNDCH W2621 C2659 W2607 W2622 GNDCH AWX8954 W2623 GNDCH AWX8955 W2608 (ANP7562-E) VSX-LX50...
Page 186 SIDE B FRONT-IN ASSY R2674 L2751 C2671 R2668 C2756 GNDD C2758 GNDA C2757 R2666 C2754 GNDA GNDCH GNDCH GNDCH AWX8954 AWX8955 FRONT IN ASSY (ANP7562-E) VSX-LX50...
Page 187 SIDE B CN2652 L2751 VA2752 VA2751 C2756 C2758 C2718 C2757 C2719 C2754 C2711 R2714 AWX8954 PNE-1B1 AWX8955 GNDA R2712 AWX9047 AWX9048 1.V+5D 2.FOPT 3.GNDD 4.GNDD 5.FV-C 6.FV-Y 7.FV 8.GAV 14.FV-L 9.GAV 15.FV-R 10.MICDET 16.V+7A 11.MICOUT 17.V-7A 12.GNDA 13.GNDA CN2651 VSX-LX50...
Page 188: Primary Assy
SIDE A PRIMARY ASSY CN3007 CN2002 CN2002 L2003 W2008 T2001 J22A W2010 J23A J21A RY2001 L2001 H2001 H2002 W2003 2005YEL W2002 W2001 W2006 R2001 W2005 Y14A KN2001 2005WHT W2004 MARKED. AS FUSE REPLACE FIRE RISK OF 2005 (ANP7562-E) AC CORD VSX-LX50...
Page 189 W2013 AWX9036 C2010 CN2001 AWX9037 AWX9085 AWX9086 AWX9091 IC2001 AWX9092 78M56A PRINTED SIDE W2023 KN2002 W2022 W2021 J21A SECONDARY RY2001 PRIMARY ASS'Y W2020 H2006 H2004 C2003 Y15A L2001 J2004 PRIMARY PNE-1B1 Y14A J2001 J2003 J2002 Y14A Y15A Y14B Y15B VSX-LX50...
Page 190 SIDE B PRIMARY ASSY CN2001 D2003 Q2001 PRIMARY Y15A Y14A VSX-LX50...
Page 191 SIDE B CN2002 PRIMARY ASSY CN2003 (ANP7562-E) VSX-LX50...
Page 192: Trans 1 Assy
11.15 TRANS 1 ASSY SIDE A SIDE A TRANS 1 ASSY AWX9038 TRANS1 ASS'Y PNE-1B1 Y15A Y14A Y14B Y15B PRIMARY SIDE (ANP7562-E) T1501 MAIN TRANS. SIDE B SIDE B TRANS 1 ASSY PRIMARY SIDE PNE-1B1 (ANP7562-E) VSX-LX50...
Page 193: Trans 2-1 Assy
SIDE B SIDE B TRANS 2-1 ASSY 6.+C BINDER 5.+B 4.+VH AWX9058 3.-VH AWX9059 2.-B AWX9116 Y10A 1.-C CAUTION D3264 D3258 D3262 D3260 D3254 5.V-12A D3261 4.NECK8 3.NECK6 D3256 2.VH- V-12A 1.VH+ NECK6 Q3251 Q3252 NECK8 D3265 D3266 (ANP7563-C) VSX-LX50...
Page 194: Diode 1 And Vh Tr Assys
Y10B Y11A Y11B Y12B Y12A R3301 W3306 W3305 (ANP7563-C) (ANP7563-C) D3352 C3354 VH TR ASSY Q3354 AWX9061 IC3352 R3354 Q3353 C3353 3251 R3353 D3351 C3351 IC3351 Q3352 Q3351 C3352 R3352 (ANP7563-C) (ANP7563-C) R3351 VH TR ASSY VH TR ASSY VSX-LX50...
Page 195: Bridge 1 Assy
11.18 BRIDGE 1 ASSY SIDE A SIDE A BRIDGE 1 ASSY CN1002 CN5811 123.0mm 123.0mm (ANP7563-C) 5811 PNE-1B1 CN5812 CN106 SIDE B SIDE B BRIDGE 1 ASSY CN5812 PNE-1B1 ASSY BRIDGE1-HI AWX9078- CN5811 (ANP7563-C) VSX-LX50...
Page 196: Ps/Sp Assy
W3018 R305 1.HP L C3001 V-12A L3051 CN3004 W3020 V-12 R3031 V+12 2.FL L3011 R305 C3051 R3011 Y13A L3021 W3014 C3031 R3012 W3015 C3032 RY3002 W3003 W3009 RY3001 W3004 C3011 W3008 C3012 W3007 W3005 W3006 C3033 C3023 C3013 CN3001 VSX-LX50...
Page 197 CN3006 R3072 W3024 R3051 L3051 R3071 W3023 L3071 L3041 RY3003 CN2002 RY3004 L3061 R3052 C3051 W3016 C3052 C3071 Y13A R3042 C3041 W3017 C3072 W3015 W3009 W3012 KN3001 W3008 W3010 C3042 W3013 W3007 W3011 (ANP7563-C) C3043 C3063 C3053 CN3002 C3073 VSX-LX50...
Page 198 SIDE B PS/SP ASSY Y12A Y11A PS/SP ASSY AWX9109 AWX9052 AWX9110 AWX9053 AWX9054 W UP AWX9055 RYAC AWX9107 V5.6ST AWX9108 GNDST GNDST GNDST GNDST GNDST GNDST PNE-1B1 GNDST Q3002 V+12 V-12 V-12 Q3003 Q3004 (ANP7563-C) CN3102 CN3101 VSX-LX50...
Page 199 SIDE B Y11A CN3003 J3009 V+5.6ST CN3004 Q3002 V-12 V-12 V-12 Q3001 CN3101 VSX-LX50...
Page 200: Trans 2-2 Assy
(ANP7563-C) SIDE B SIDE B 1.25A 125V 12.AREG 11.AREGG 10.AREG 6.DREG 9.DREG 5.VREG 8.DREG 4.VREGG 7.DREG 5A 125V 3.VREG 2.AC2 1.AC1 PNE-1B1 2.5A 125V RISK OF FIRE - REPLACE FUSE AS MARKED. TRANS2-2 ASS'Y AWX9062 (ANP7563-C) TRANS 2-2 ASSY VSX-LX50...
Page 201: Posi 1-L, Posi 2-L And Posi 1-R Assys
POSI_1L ASSY J4501 POSI 1-L ASSY 9081 9080 (ANP7564-C) (ANP7564-C) J4501 CN5004 SIDE B SIDE B (ANP7564-C) J4501 9080 POSI 1-L ASSY 9081 POSI_1L ASSY 9083 9084 POSI 1-R ASSY POSI_1R ASSY (ANP7564-C) (ANP7564-C) J4551 POSI 2-L ASSY AF AH VSX-LX50...
Page 202: Trans Side Assy
11.22 TRANS SIDE ASSY SIDE A TRANS SIDE ASSY CN5705 CN2851 CN3202 3201 3201 1.HPSW 2.HPR 3.HPG PRODUCTION CODE 4.HPL CN3202 SIDE B TRANS SIDE ASSY TRANS S AWX9057 CN3202 AWX9056 0 1 2 3 CN3202 3201 VSX-LX50...
Page 203 L3202 3,LOCK DET AWX9056- R3203 L3203 2,-FAN 1,+FAN R3204 L3204 R3205 L3205 L3206 R3206 V-12V R3207 L3207 PNE-1B1 V+12V R3208 L3208 RYHP R3209 L3209 RYCS R3210 L3210 R3211 L3211 GNDST 11.V+5.6ST R3212 L3212 12.RYAC R3213 L3213 13.WUP (ANP7563-C) CN3203 VSX-LX50...
Page 204: Ir I/O Assy
10.OPTOUT 3.TL OPTIN2 4.GNDT AWX9066 GNDD GNDD GNDU 5.TDO GNDD V+5D FMDET OPTIN3 1.OPTIN1 GNDU MRIN 13.V+5.6U 14.OPTOUT 15.GNDD 16.GNDD 17.OPTIN3 Q3752 1.TCE TCLK 5.GNDT 18.GNDD 19.GNDD Q3751 20.OPTIN2 V+9T 21.GNDD V+5D 23.OPTIN1 FMDET 11.GNDT (ANP7563-C) IR I/O ASSY VSX-LX50...
Page 205 VSX-LX50...
Page 206: Local P-Supply Assy
+12V AREG DREG 1.DREG W3522 DREG 2.DREG DREG 3.DREG C3503 DREG 2SD1763 VREG 4.DREG W3523 V+FAN VREGG VREG PNE-1B1 Q3502 W3524 C3511 C3504 V+FAN W3525 GNDU W3527 ICP-N10 V-FAN LOCKDET ASS'Y IC3511 V-12A W3526 LOCAL SUPPLY V+12A C3512 (ANP7563-C) VSX-LX50...
Page 207 AWX9064 AWX9063 GNDA PNE-1B1 AREG D3513 V+5AD AWX9114 GNDU C3517 AWX9115 AREG 1.DREG GNDV AREGG 2.DREG AREG 3.DREG DREG 4.DREG DREG DREG DREG +12V VREG VREGG VREG V+FAN V+FAN V-FAN LOCKDET V-12A C3513 V+12A Q3501 GNDU PNE-1B1 R3505 (ANP7563-C) VSX-LX50...
Page 208: Dc/Dc Assy
3.V+5D L651 W668 C658 GRTN W661 GRTN W659 GRTN C659 Q651 W658 GRTN W662 V+12UN W657 V+12UN W660 V+5D C655 KN651 C654 1.DREG 2.DREG 3.DREG 4.DREG W656 DREG W655 W654 DREG W653 DREG AWX9015 AWX9098 PNE-1B1 DC/DC ASSY (ANP7563-C) VSX-LX50...
Page 209 SIDE B SIDE B DC/DC ASSY 1.V+7D 2.GRTN 3.V+5D GRTN GRTN D651 GRTN V+12UN GRTN V+12UN V+5D R653 R652 C656 R654 DREG DREG DREG DREG (ANP7563-C) VSX-LX50...
Page 210: Video Connect Assy
SIDE A SIDE A VIDEO CONNECT ASSY W3811 V+12TRG 1.V+12T 2.V+12TRG 3.GTRG 4.V+5.6V 5.SUPERG2 6.SUPERG2 7.SUPERG2 8.V-5.6V CN3804 9.V+iPod W3806 V+5.6V W3805 V-5.6V W3807 W3803 W3804 V+5.6V CN3803 PNE-1B1 W3802 V-5.6V VIDEO CONNECT ASSY AWX9069 W3801 V+5.6V CN3802 (ANP7563-C) VSX-LX50...
Page 211 SIDE B SIDE B VIDEO CONNECT ASSY V+12TRG 1.V+12T 2.V+12TRG 3.GTRG 4.V+5.6V 5.SUPERG2 6.SUPERG2 7.SUPERG2 8.V-5.6V 9.V+iPod V+5.6V V-5.6V V+5.6V PNE-1B1 V-5.6V VIDEO CONNECT ASSY AWX9069 V+5.6V (ANP7563-C) VSX-LX50...
Page 212: Power Amp-L Assy
C5001 C5133 C5033 W561 W565 CN5002 C5107 C5007 W560 W564 C5109 C5009 Q5105 Q5005 C5123 C5023 C5124 C5024 KN5001 W544 W549 W545 W548 PURPLE GREEN W546 W550 R5027 R5127 J5002 W531 W525 J5003 W530 W526 W524 J5001 J5004 W529 VSX-LX50...
Page 213 C5201 BLUE 2,VH- 1,VH+ C5233 W571 CN5001 C5007 C5207 W570 CN5003 R5051 1,GNDA C5209 BLACK W568 Q5205 3,bb 4,CB 5,CE C5223 6,CE C5023 C5224 W555 W556 W554 GRAY W557 R5027 R5227 W531 KN5003 W537 W530 J5005 W540 J5006 (ANP7564-C) VSX-LX50...
Page 214 6,DC R5231 5,AMUTE C5216 C5203 R5230 C5003 4,SBMUTE R5203 C5215 Q5001 R5204 C5206 R5004 3,VH- Q5201 C5202 R5229 R5201 2,VH- 1,VH+ R5001 C5053 1,GNDA 3,bb Q5202 4,CB 5,CE 6,CE R5215 R5221 R5022 R5213 R5222 R5013 C5212 C5611 C5211 C5012 VSX-LX50...
Page 215 R5131 11,NC C5103 C5116 R5030 C5015 R5130 R5003 R5103 C5003 R5104 C5115 C5006 R5029 Q5001 Q5101 C5106 C5002 C5102 R5004 R5101 R5129 R5001 Q5002 Q5102 C5105 R5015 R5022 R5021 R5121 R5115 R5122 R5013 R5113 C5011 C5112 C5111 C5012 (ANP7564-C) VSX-LX50...
Page 216: Power Amp-R Assy
C5307 Q5405 Q5305 W726 W725 C5433 CN5302 C5333 W702 W709 C5417 C5317 1,NC C5401 C5301 2,NC 3,WT 4,OL DET 5,DC DET 6,POSI_2 7,POSI_2 8,GNDU 9,POSI_1 10,NC 11,NC CN5304 W9073 9073 POWER AMP_R ASSY W9106 9106 CN5304 CN3006 J4551 CN3004 VSX-LX50...
Page 217 C5323 W753 BROWN W729 C5524 1.CE C5523 2.CE C5352 3.CB C5507 W727 4.bb C5307 BLACK 6.GAMP Q5505 W728 R5351 CN5303 CN5301 C5533 W718 C5517 BLUE C5501 SBMUTE AMUTE C5571 GNDA GNDA GNDA PNE-1B1 Production code 5002 (ANP7564-C) CN3102 CN3006 VSX-LX50...
Page 218 R5522 R5321 1.CE 2.CE 3.CB 4.bb 6.GAMP C5353 Q5502 Q5303 Q5503 R5501 13.VH+ 12.VH- 11.VH- R5529 C5502 R5530 10.SBMUTE R5301 C5515 R5504 9.AMUTE Q5501 R5503 R5531 Q530 R5304 C5516 8.DC C5503 C5303 7.OL 6.GNDA 5.SBR 4.GNDA 3.FR 2.GNDA 1.SR VSX-LX50...
Page 219 R5430 R5301 R5401 C5415 C5315 Q5301 Q5401 R5304 R5303 R5331 R5403 R5431 R5404 C5316 C5416 C5303 C5403 9073 AWX 1,NC 2,NC 9106 AWX 3,WT 4,OL DET POWER AMP R_ASSY 5,DC DET 6,POSI_2 7,POSI_2 8,GNDU 9,POSI_1 10,NC 11,NC CN5304 (ANP7564-C) VSX-LX50...
Page 220: Power Amp In Assy
POWER AMP IN ASSY CN1406 CN5603 CN5603 W929 W924 W928 W927 W926 W925 CN5003 CN5605 W920 W922 W921 W917 CN5605 W916 W912 CN5601 W911 W914 YELLOW W915 R5609 W908 W903 1.VH+ CN5602 2.VH- 3.NECK6 W902 4.NECK8 5.A-12V CN5606 (ANP7564-C) CN5606 CN5303 VSX-LX50...
Page 221 SIDE B SIDE B POWER AMP IN ASSY CN5603 C5603 CN5605 1.VH+ 2.VH- 3.NECK6 4.NECK8 5.A-12V R5607 D5601 D5603 D5605 D5604 D5602 D5606 R5644 R5648 D5644 D5643 CN5606 (ANP7564-C) VSX-LX50...
Page 222: Power Protect Assy
11.30 POWER PROTECT ASSY SIDE A SIDE A POWER PROTECT ASSY CN5705 W109 W108 W107 CN5701 W106 W105 W104 W103 W101 W102 CN5704 (ANP7564-C) VSX-LX50...
Page 223 SIDE B SIDE B POWER PROTECT ASSY CN5706 CN5701 R5710 IC5701 CN5704 CN5703 (ANP7564-C) VSX-LX50...
Page 224: Hdmi & Dvc Assy
Q351 R355 C453 Q352 R458 R118 R301 R352 IC454 R331 R305 R123 C454 R122 L303 L351 IC901 JA301 L1001 C902 C317 R1002 C901 C1026 R572 C1025 C1031 C301 R573 R574 R338 R337 IC503 C513 R576 R314 R313 R575 D301 VSX-LX50...
Page 225 R207 R208 L501 R554 R509 Q501 R551 R581 R513 C908 Q906 C902 C913 L903 IC202 C901 AWQ7040 /21 R515 C202 R516 C1026 R901 C912 HDMI&DVC ASSY R572 C1025 C1031 R917 D901 C914 L901 L902 C1002 CN1001 CN1001 (ANP7615-B) CN801 VSX-LX50...
Page 226 SIDE B HDMI & DVC ASSY CN1002 R1102 IC911 CN1001 VSX-LX50...
Page 227 SIDE B Q151 IC102 R1102 R127 (ANP7615-B) IC911 0 1 2 3 VSX-LX50...
Page 228: Usb Assy (Vsx-Lx50 Only)
11.32 USB ASSY (VSX-LX50 ONLY) SIDE A SIDE A CN2652 USB ASSY CN701 R724 CN701 R734 C796 R723 R731 C714 R722 C711 L731 R725 L732 C797 C710 C733 R700 R721 R732 L762 R951 C709 R763 C731 L703 R762 R719 C769...
Page 229 VSX-LX50...
Page 230: Pcb Parts List
Example) IC 301 is on the point (face A, 91 of x-axis, and 111 of y-axis) of the corresponding PC board. IC 301 (A, 91, 111) IC NJM2068V LIST OF WHOLE PCB ASSEMBLIES VSX-LX50/ VSX-91TXH/ VSX-9120TXH-K/ Mark Symbol and Description...
Page 231 AWX8814 and AWX8813 are constructed the same except for the following: Mark Symbol and Description AWX8814 AWX8813 IC501 Not used F2621E-01-TBB IC502 Not used AAT4618IGV-0.5-1-TLB IC601 Not used TC74VHC157FTS1-TBB D501, D502 Not used UDZS5R6(B)-TRB L501, L601 Not used QTL1013 VSX-LX50...
Page 232 RS1/16S202J R1155, R1156 Not used RS1/16S103J R1157, R1158 Not used RS1/16S101J R1159, R1160, R1164 Not used RS1/16S471J R1163 Not used RS1/16S473J JA1006 Pin Jack(1p) AKB7175 Not used 1004 Pin Jack(2p) Not used AKB7176 1005 Pin Jack(2p) Not used AKB7181 VSX-LX50...
Page 233 DAN217U-TLB D2415 Not used DAN202U-TLB D2414 SLR343BC4T(JKLM)-TS Not used C2402 Not used CKSRYB153K50 R2407 Not used RS1/16S223J R2408, R2410 Not used RS1/16S103J R2409 Not used RS1/16S392J R2414 RS1/16S0R0J Not used R2423 RS1/16S221J Not used R2425, R2426 Not used RS1/16S0R0J VSX-LX50...
Page 234 UDZS27(B)-TRB Not used C3512 CEAT100M50 Not used C3513 CKSRYB102K50 Not used C3514 CEAT100M50 Not used C3510 CEANP102M16-F Not used C3511 CEAT102M35-F Not used C3515 CEANP470M25 Not used R3504 RS1/16S472J Not used R3505 RS1/16S101J Not used R3506 RS1/16S222J Not used VSX-LX50...
Page 235 Not used Q5706 RT1P241M-TLB Not used D5702 1SS355-TRB Not used C5706 CKSRYB103K50 Not used R5704, R5709 Not used RS1/16S0R0J R5705, R5708, R5746 RS1/16S0R0J Not used R5706 RS1/16S822J Not used R5718 RS1/16S104J Not used CN5706 3pin Connector S3B-EH Not used VSX-LX50...
Page 236 PCB PARTS LIST FOR VSX-LX50/HYXJ5 UNLESS OTHER WISE NOTED Mark No. Description Part No. Mark No. Description Part No. R 511 (B,302,128) RS1/16S222J MAIN ASSY (AWK7975) R 512 (B,302,118) RS1/16S222J MISCELLANEOUS R 513 (B,302,142) RS1/16S331J J 663 JUMPER WIRE D20PDD0605E...
Page 237 R 883 (A,253,116) RS1/16S0R0J R 774 (B,195,72) RS1/16S221J R 777 (B,186,79) RS1/16S101J CAPACITORS R 778 (B,197,79) RS1/16S101J C 501 (B,307,56) CCSRCH101J50 R 781 (A,161,61) RS1/16S473J C 502 (B,307,51) CCSRCH101J50 R 782 (A,166,61) RS1/16S473J C 503 (B,307,69) CCSRCH221J50 R 783 (B,162,60) RS1/16S272J VSX-LX50...
Page 238 C 566 (A,300,135) ELECT. CAPACITOR CEAT470M25 C 721 (A,224,53) CKSRYB103K50 C 567 (A,300,210) ELECT. CAPACITOR CEAT470M25 C 722 (A,215,56) CKSRYB103K50 C 568 (A,300,201) ELECT. CAPACITOR CEAT470M25 C 741 (A,174,53) CEAT2R2M50 C 569 (A,293,210) ELECT. CAPACITOR CEAT470M25 C 742 (A,180,53) CEAT2R2M50 VSX-LX50...
Page 239 Q 110 (A,104,179) DIGITAL TR(SC-70) RT1P241M C 841 (A,259,108) CEAT4R7M50 Q 111 (B,102,174) TRANSISTOR 2SA1576A Q 301 (B,215,147) TRANSISTOR 2SA1036K C 842 (A,259,101) CEAT4R7M50 Q 302 (B,212,137) TRANSISTOR RT1N241M C 845 (A,263,148) CCSRCH101J50 D 101 (B,137,176) DIODE DAN202U C 846 (A,263,161) CCSRCH101J50 VSX-LX50...
Page 240 R 105 (A,146,170) RAB4C101J R 251 (A,116,198) RS1/16S473J R 106 (A,151,170) RAB4C101J R 252 (A,104,195) RS1/16S102J R 107 (A,165,178) RAB4C101J R 253 (A,106,184) RS1/16S102J R 108 (A,168,181) RAB4C101J R 254 (A,106,186) RS1/16S102J R 109 (A,152,208) RAB4C101J R 262 (A,174,182) RS1/16S472J VSX-LX50...
Page 241 R 364 (B,171,115) RS1/16S331J 921 (A,245,238) PCB BINDER VEF1040 R 385 (B,92,107) RS1/16S0R0J R 9001(A,227,111) RS1/16S0R0J R 9003(A,222,115) RS1/16S0R0J DSP ASSY R 9005(A,221,117) RS1/16S0R0J MISCELLANEOUS R 9010(A,219,114) RS1/16S0R0J IC 101 (A,58,43) DSP IC ADSP-21366KBCZ-1AA IC 103 (A,17,46) LOGIC IC (LATCHES) TC74VHC573FTS1 VSX-LX50...
Page 242 R 226 (B,116,33) RS1/16SS473J R 104 (A,50,47) RS1/16SS101J R 228 (B,109,30) RS1/16SS472J R 106 (A,51,34) RESISTOR ARRAY RAB4CQ472J R 233 (B,124,32) RS1/16SS470J R 107 (A,54,51) RS1/16SS472J R 237 (B,121,40) RS1/16SS470J R 108 (A,56,34) RS1/16SS472J R 238 (A,124,43) RESISTOR ARRAY RAB4CQ470J VSX-LX50...
Page 243 R 657 (A,157,46) RESISTOR ARRAY RAB4CQ470J C 107 (B,62,41) CKSSYB104K10 R 660 (A,157,43) RESISTOR ARRAY RAB4CQ101J C 108 (B,59,38) CKSSYB104K10 R 668 (A,164,40) RS1/16SS104J C 109 (A,49,42) CKSSYB104K10 R 701 (A,168,54) RS1/16SS470J C 110 (A,50,42) CKSSYB471K50 R 702 (A,173,58) RS1/16SS470J VSX-LX50...
Page 244 C 918 (B,181,24) CKSSYB103K16 C 307 (A,185,36) CKSSYB104K10 C 921 (B,120,36) CKSSYB471K50 C 312 (B,192,32) CKSSYB104K10 C 922 (B,122,36) CKSSYB103K16 C 315 (B,194,32) CKSSYB102K50 C 923 (B,179,23) CKSSYB104K10 C 316 (A,201,28) CEVW470M6R3 C 924 (B,179,22) CKSSYB471K50 C 317 (A,200,35) CKSSYB104K10 VSX-LX50...
Page 245 C 1021(A,123,213) CEAT101M10 C 1022(A,129,214) CEAT101M10 R 1025(B,66,204) RS1/16S473J R 1026(B,63,204) RS1/16S473J C 1024(B,84,225) CCSRCH181J50 R 1027(B,64,189) RS1/16S561J C 1025(B,113,224) CCSRCH181J50 R 1030(B,85,196) RS1/16S473J C 1026(B,56,224) CCSRCH181J50 R 1031(B,71,192) RS1/16S473J C 1027(A,45,180) CEAT101M10 C 1028(A,45,187) CEAT101M10 R 1032(B,69,192) RS1/16S473J VSX-LX50...
Page 246 C 1204(B,63,148) CKSRYB104K16 D 1251(B,90,112) DIODE 1SS355 C 1205(B,49,151) CCSRCH181J50 D 1252(B,79,113) DIODE 1SS355 C 1206(B,47,151) CCSRCH181J50 D 1301(B,170,143) DIODE 1SS355 C 1207(B,105,152) CCSRCH181J50 L 1201(A,155,109) CHIP COIL LCTAW120J2520 C 1208(B,103,152) CCSRCH181J50 L 1202(B,162,108) CHIP COIL LCTAW120J2520 C 1209(B,77,152) CCSRCH181J50 VSX-LX50...
Page 247 Q 1402(B,71,57) TRANSISTOR 2SA1576A R 1439(B,126,49) RS1/16S473J Q 1403(B,163,64) TRANSISTOR 2SA1576A Q 1405(B,163,69) TRANSISTOR 2SA1576A R 1440(B,124,49) RS1/16S473J Q 1407(B,163,74) TRANSISTOR 2SA1576A R 1441(B,128,48) RS1/16S473J R 1442(B,128,45) RS1/16S473J Q 1415(B,156,59) TRANSISTOR 2SC4081 R 1443(B,157,64) RS1/16S154J Q 1416(B,162,50) TRANSISTOR 2SC4081 VSX-LX50...
Page 248 C 1521(B,49,84) CCSRCH101J50 R 1568(B,25,87) RS1/16S474J C 1522(B,53,85) CCSRCH101J50 R 1569(A,23,60) RS1/16S103J C 1527(B,47,70) CCSRCH271J50 R 1570(A,29,60) RS1/16S103J C 1528(B,53,70) CCSRCH271J50 R 1571(A,21,69) RS1/16S103J C 1531(A,60,78) ELECT. CAPACITOR CEAT470M25 R 1572(A,27,69) RS1/16S103J C 1532(A,67,78) ELECT. CAPACITOR CEAT470M25 R 1573(A,65,46) RS1/16S473J VSX-LX50...
Page 249 R 2361(B,172,197) RS1/16S221J RESISTORS R 2301(B,104,240) RS1/16S104J R 2362(B,170,194) RS1/16S221J R 2302(B,106,240) RS1/16S104J R 2363(B,169,194) RS1/16S221J R 2303(B,108,240) RS1/16S104J R 2364(B,167,194) RS1/16S221J R 2304(B,110,240) RS1/16S104J R 2366(B,162,198) RS1/16S104J R 2305(B,112,240) RS1/16S104J R 2368(B,126,199) RS1/16S473J R 2306(B,114,240) RS1/16S104J R 2369(B,131,208) RS1/16S474J VSX-LX50...
Page 250 S 2556(A,267,141) SWITCH VSG1024 C 2403(B,247,195) CKSRYB103K50 S 2557(A,288,141) SWITCH VSG1024 C 2404(B,237,236) CKSRYB103K50 S 2558(A,310,141) SWITCH VSG1024 C 2405(A,247,235) CEJQ101M6R3 C 2406(B,245,209) CKSRYB103K50 S 2561(A,74,117) SWITCH VSG1024 C 2407(A,229,210) CEJQ221M6R3 S 2562(A,106,91) SWITCH VSG1024 S 2563(A,120,91) SWITCH VSG1024 VSX-LX50...
Page 251: Headphone Assy
R 2663(B,120,46) RS1/16S101J C 2502(B,36,129) CKSRYB103K50 R 2664(B,112,48) RS1/16S101J C 2503(B,33,129) CKSRYB103K50 R 2665(B,100,46) RS1/16S470J C 2551(B,151,141) CKSRYB102K50 C 2561(B,79,113) CKSRYB102K50 R 2666(B,100,39) RS1/16S470J R 2668(B,131,57) RS1/16S0R0J C 2571(B,18,181) CKSRYB102K50 R 2671(B,141,62) RS1/16S750J C 2580(B,148,113) CCSRCH561J50 R 2672(B,145,62) RS1/16S0R0J VSX-LX50...
Page 252 D 3253(B,236,216) DIODE UDZS8R2(B) C 2719(B,40,36) CCSRCH221J50 D 3254(B,263,217) DIODE UDZS7R5(B) C 2753(B,68,56) CKSRYB104K16 D 3255(B,233,216) DIODE UDZS9R1(B) D 3256(B,263,219) DIODE UDZS8R2(B) C 2755(A,68,51) CEAT101M16 C 2756(B,73,51) CKSRYB104K16 D 3257(B,233,223) DIODE UDZS9R1(B) C 2757(B,73,46) CCSRCH471J50 D 3258(B,258,218) DIODE UDZS8R2(B) VSX-LX50...
Page 253 R 3042(A,267,67) METAL OXIDE RESISTOR RS1LMF100J R 3353(B,168,143) RS1/16S100J R 3354(B,177,144) RS1/16S471J > R 3051(A,240,93) METAL OXIDE RESISTOR RS1/2LMF4R7J > R 3052(A,237,79) METAL OXIDE RESISTOR RS1LMF100J > R 3061(A,309,63) METAL OXIDE RESISTOR RS1/2LMF4R7J > R 3062(A,313,73) METAL OXIDE RESISTOR RS1LMF100J VSX-LX50...
Page 254: Trans Side Assy
C 3505(A,139,179) CEAT101M16 MISCELLANEOUS J 3201 JUMPER WIRE D20PDY0410E C 3506(A,133,145) CEAT470M50 CN3202(A,60,8) CONNECTOR CKS3382 C 3508(B,122,152) CKSRYB103K50 CN3203(A,319,21) CONNECTOR B13B-PH C 3510(A,110,171) ELECT. CAPACITOR CEANP102M16 3201(A,84,28) 4P CABLE HOLDER 51048-0400 C 3511(A,107,154) ELECT. CAPACITOR CEAT102M35 C 3512(A,112,133) CEAT100M50 VSX-LX50...
Page 255: Video Connect Assy
Q 5205(A,250,191) TRANSISTOR 2SC2705 Q 5241(B,238,197) CHIP TR 2SA1255 RESISTORS R 3703(B,25,84) RS1/16S0R0J > D 5001(B,190,188) CHIP ZENER DIODE UDZS3R6(B) R 3752(A,38,66) CARBON FILM RESISTOR RD1/4MUF391J > D 5002(B,188,188) DIODE 1SS355 R 3755(B,48,62) RS1/16S0R0J > D 5003(B,180,184) DIODE 1SS355 VSX-LX50...
Page 256 R 5029(B,167,203) RN1/10SE3302D > R 5213(B,257,149) RS1/16S330J R 5030(B,173,203) RN1/16SE1001D R 5221(B,251,153) RS1/16S101J R 5031(B,173,205) RN1/16SE1500D R 5222(B,265,153) RS1/16S101J R 5032(B,160,195) RS1/16S151J > R 5223(A,280,164) CARBON FILM RESISTOR RD1/4MUF4R7J R 5041(B,147,169) RS1/16S473J > R 5224(A,249,175) CARBON FILM RESISTOR RD1/4MUF4R7J VSX-LX50...
Page 257 > D 5303(B,180,62) DIODE 1SS355 C 5204(B,255,194) CKSRYB102K50 > D 5304(B,173,62) DIODE 1SS355 C 5207(A,283,192) CEAT101M10 > D 5305(B,177,62) DIODE UDZS4R7(B) C 5208(B,253,195) CAPACITOR(CERAMIC) ACG7057 > D 5306(B,175,62) DIODE UDZS4R7(B) C 5209(A,267,187) ELECT. CAPACITOR CEAT100M2A D 5341(B,151,71) DIODE 1SS355 VSX-LX50...
Page 258 R 5524(A,250,70) CARBON FILM RESISTOR RD1/4MUF4R7J R 5342(B,148,75) RS1/16S223J > R 5525(B,277,91) CHIP RESISTOR ACN7132 R 5343(B,153,75) RS1/16S471J > R 5526(B,241,91) CHIP RESISTOR ACN7132 R 5344(B,146,75) RS1/16S471J > R 5527(A,256,80) RESISTOR (0.18, 5W) ACN7121 R 5345(B,152,65) RS1/16S472J R 5529(B,258,44) RN1/10SE3302D VSX-LX50...
Page 259 > R 5624(A,65,40) CARBON FILM RESISTOR RD1/4MUF4R7J C 5509(A,267,58) ELECT. CAPACITOR CEAT100M2A > R 5627(A,19,56) RESISTOR (0.18, 5W) ACN7121 C 5511(B,271,104) CAPACITOR(CERAMIC) ACG7056 C 5512(B,243,104) CAPACITOR(CERAMIC) ACG7056 R 5629(B,47,48) RN1/10SE3302D R 5630(B,49,46) RN1/16SE1001D C 5515(B,258,41) CCSRCH220J50 R 5631(B,49,51) RN1/16SE1500D VSX-LX50...
Page 260 R 5711(B,13,112) RS1/16S103J Q 351 (A,28,46) CHIP TR (PNP X 2) UMB1N R 5712(B,13,108) RS1/16S472J Q 352 (A,24,46) CHIP TRANSISTOR DTC114YUA R 5713(B,23,106) RS1/16S103J Q 731 (A,92,70) TRANSISTOR 2SA1576A R 5714(B,24,131) RS1/16S102J Q 741 (A,97,70) TRANSISTOR 2SA1576A R 5715(B,27,101) RS1/16S473J VSX-LX50...
Page 261 R 105 (A,52,82) RESISTOR ARRAY RAB4CQ470J R 201 (A,85,28) RS1/16S470J R 106 (A,49,82) RS1/16S100J R 202 (A,83,28) RS1/16S470J R 107 (A,48,82) RS1/16S100J R 204 (A,81,28) RESISTOR ARRAY RAB4CQ470J R 108 (A,45,82) RESISTOR ARRAY RAB4CQ100J R 205 (A,78,28) RESISTOR ARRAY RAB4CQ470J VSX-LX50...
Page 262 RS1/16S473J R 433 (A,122,46) RAB4CQ330J R 562 (B,82,26) RS1/16S473J R 434 (A,128,41) RESISTOR ARRAY RAB4CQ220J R 563 (B,80,26) RS1/16S103J R 435 (A,132,41) RESISTOR ARRAY RAB4CQ220J R 564 (B,113,51) RS1/16S103J R 437 (A,138,38) RESISTOR ARRAY RAB4CQ473J R 565 (B,122,47) RS1/16S472J VSX-LX50...
Page 263 R 920 (A,136,32) RS1/16S103J C 306 (A,52,42) CKSRYB104K16 R 921 (A,132,24) RS1/16S0R0J C 307 (A,50,42) CKSRYB105K16 R 931 (B,74,24) RS1/16S101J C 308 (A,43,42) CKSRYB103K50 R 1002(A,69,22) RS1/10S100J C 309 (A,40,45) CKSRYB104K16 R 1101(B,88,73) RS1/10S0R0J C 310 (A,41,39) CKSRYB105K16 R 1102(B,86,73) RS1/10S0R0J VSX-LX50...
Page 264 CKSRYB104K16 C 1001(B,132,15) CKSRYB104K16 C 449 (A,124,46) CKSRYB104K16 C 1002(A,131,13) CEVW101M16 C 451 (A,79,69) CKSRYB104K16 C 1025(A,80,16) CKSRYB104K16 C 452 (A,79,59) CKSRYB104K16 C 1026(A,80,17) CKSRYB102K50 C 453 (A,79,50) CKSRYB104K16 C 1028(B,124,12) CKSRYB104K16 C 454 (A,77,40) CKSRYB104K16 C 1029(B,126,12) CKSRYB102K50 VSX-LX50...
Page 265 C 1031(A,80,14) CCSRCH101J50 R 741 (A,66,19) RS1/16SS560J R 742 (A,77,23) RS1/16SS101J R 743 (A,75,23) RS1/16SS101J USB ASSY (VSX-LX50 ONLY) R 744 (A,73,23) RS1/16SS101J MISCELLANEOUS R 745 (A,88,19) RS1/16SS472J IC 701 (A,35,38) USB MEDIA CONTROL IC TCC8600-00X-EA-UG R 747 (A,45,41) RS1/16S225J >...
Page 266 CKSSYB471K50 C 766 (A,57,40) CKSSYB471K50 C 767 (A,90,55) CKSSYB104K10 C 768 (A,90,54) CKSSYB471K50 C 769 (A,43,55) CKSRYB104K16 C 771 (A,71,25) CKSQYB105K16 C 773 (A,64,23) CKSRYB104K16 C 952 (A,57,17) CKSRYB104K16 FM/AM TUNER UNIT FM/AM TUNER UNIT has no service part. VSX-LX50...

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Vsx-91txh Vsx-9120txh-k

Pioneer VSX-LX50 Service Manual

1 Service Precautions

2 Specifications

3 Basic Items for Service

4 Block Diagram

5 Diagnosis

6 Service Mode

7 Disassembly

8 Each Setting and Adjustment

9 Exploded Views and Parts List

10 Schematic Diagram

11 Pcb Connection Diagram

12 Pcb Parts List

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Summary of Contents for Pioneer VSX-LX50

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