Pioneer DV-LX50 Service Manual
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Pioneer DV-LX50 Service Manual

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3 7 63 1515 0

DVD PLAYER

DV-LX50
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model
DV-LX50
WYXZT5
DV-LX50
WYXZTUR5
TE
L 13942296513
www
For details, refer to "Important Check Points for good servicing".
PIONEER CORPORATION
.
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
PIONEER CORPORATION 2007
http://www.xiaoyu163.com
Type
Power Requirement
AC 220 V to 240 V
AC 220 V to 240 V
x
ao
u163
y
i
4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan
http://www.xiaoyu163.com
2 9
8
DV-LX50
Region No.
Q Q
3
6 7
1 3
1 5
co
.
9 4
2 8
ORDER NO.
RRV3682
Remarks
2
5
0 5
8
2 9
9 4
2 8
m
T-ZZV OCT. 2007 printed in Japan
9 9
9 9

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Summary of Contents for Pioneer DV-LX50

  • Page 1: Dvd Player

    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 PIONEER CORPORATION 2007 T-ZZV OCT.

  • Page 2: Safety Information

    LD ON mode in the test mode oscillates with the laser forcibly. 2. When the cover is open, close viewing through the objective lens with the naked eye will cause exposure to the laser beam. ∗ : See page 37. u163 DV-LX50 http://www.xiaoyu163.com...
  • Page 3 3 7 63 1515 0 L 13942296513 u163 DV-LX50 http://www.xiaoyu163.com...

  • Page 4: Table Of Contents

    11.1 DVD MT PCB ASSY..........................88 11.2 AUDIO PCB ASSY..........................90 u163 11.3 OPERATION1, 2, 3, REAR JACK and POWER PCB ASSYS ............... 92 11.4 LOADING MOTOR and SW ASSYS ...................... 94 12. PCB PARTS LIST ............................95 DV-LX50 http://www.xiaoyu163.com...

  • Page 5: Service Precautions

    • Soldering combination: Sn-3.0Ag-0.5Cu • When Soldering/Removing of solder, use the draw in equipment over the Pick Up Unit to prevent the Flux smoke from it. Short circuit using a soldering iron. Pick Up PCB u163 Fig. 1 DV-LX50 http://www.xiaoyu163.com...

  • Page 6: Disc Removal Method

    ¥ Place the unit on a workstation equipped to protect against static electricity, such as conductive mat. ¥ Soldering iron with ground wire or ceramic type is used. u163 ¥ A worker needs to use a ground conductive wrist strap for body. DV-LX50 http://www.xiaoyu163.com...

  • Page 7: Specifications

    3 7 63 1515 0 Accessories • Remote control ×1 • Power cable ×1 • Audio cable ×1 (07650PG021) (120S155806) (06CPBA2008) • Video cable ×1 (06CPBA2005) • Dry cell batteries ×2 • Warranty Card (AA/R6P) • Operating Instructions L 13942296513 u163 DV-LX50 http://www.xiaoyu163.com...

  • Page 8: Specifications

    Jacks ......... . . RCA u163 DV-LX50 http://www.xiaoyu163.com...

  • Page 9: Disc/Content Format

    DRM in the Glossary on page45) •File extensions: .mp3, .wma, .m4a (these must be used for the player to recognize MP3, WMA and MPEG-4 AAC files–do not use for other file types) Super VCD u163 DV-LX50 http://www.xiaoyu163.com...
  • Page 10 In these particular instances, check with the software publisher for more detailed information. Discs recorded in packet write mode (UDF format) are not compatible with this player. Check the DVD-R/-RW or CD-R/-RW software disc boxes for additional compatibility information. u163 DV-LX50 http://www.xiaoyu163.com...

  • Page 11: Panel Facilities

    *These include HDMI, and the coaxial and optical digital outputs. • Skips to the next track, title or chapter. Display 12 h OPEN/CLOSE Press to open or close the disc tray. Disc tray u163 DV-LX50 http://www.xiaoyu163.com...
  • Page 12 Digital optical audio outputs for connection to a PCM, Dolby Digital, Use to control this player from the remote sensor of another and/or DTS-compatible AV receiver CONTROL OUT Pioneer component with a terminal and bearing CONTROL OUT DIGITAL AUDIO OUT COAXIAL mark.
  • Page 13 7 TITLE Indicates that the character display is showing a DVD-Video title number. 8 TRK Indicates that the character display is showing a track number. 9 CHP Indicates that the character display is showing a DVD chapter number. u163 DV-LX50 http://www.xiaoyu163.com...
  • Page 14 Press to select a subtitle option TOP MENU Press to display the top menu of a DVD disc. ENTER & cursor buttons Use to navigate on-screen displays and ENTER menus. Press to select an option or u163 execute a command. DV-LX50 http://www.xiaoyu163.com...
  • Page 15 Use for forward slow motion playback, frame advance and forward scanning. NEXT Skips to the next track, title or chapter. g STOP Press to stop the disc (you can resume playback by pressing (play)). TV CONTROL Press to control user's TV. L 13942296513 u163 DV-LX50 http://www.xiaoyu163.com...

  • Page 16: Basic Items For Service

    Items to be checked regarding video Item to be checked regarding audio Block noise Distortion L 13942296513 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 u163 DV-LX50 http://www.xiaoyu163.com...

  • Page 17: Pcb Locations

    1..DVD MT PCB ASSY (WYXZT5) A2K802A130 1..DVD MT PCB ASSY (WYXZTUR5)A2K807A130 1..AUDIO PCB ASSY A2K802AF70 1..REAR JACK PCB ASSY A2K802A250 1..OPERATION 1 PCB ASSY A2K802A270 u163 1..OPERATION 2 PCB ASSY A2K802A280 1..OPERATION 3 PCB ASSY A2K802ADF0 1..POWER PCB ASSSY A2K802A240 DV-LX50 http://www.xiaoyu163.com...

  • Page 18: Jigs List

    • Before shipping out the product, be sure to clean the following positions by using the prescribed cleaning tools: Position to be cleaned Position to be cleaned Position to be cleaned Cleaning tools Cleaning tools Cleaning tools Remark Remark Remark Pickup lenses Cleaning liquid : GEM1004 Cleaning paper : GED-008 L 13942296513 u163 DV-LX50 http://www.xiaoyu163.com...
  • Page 19 3 7 63 1515 0 L 13942296513 u163 DV-LX50 http://www.xiaoyu163.com...

  • Page 20: Block Diagram

    ATTENTION CAUTION :LES PIECES REPAREES PAR UN ETANT :SINCE THESE PARTS MARKED BY DANGEREUSES AN POINT DE VUE SECURITE CRITICAL FOR SAFETY,USE ONES N’UTILISER QUE CELLS DECRITES DESCRIBED IN PARTS LIST ONLY DANS LA NOMENCLATURE DES PIECES DV-LX50 http://www.xiaoyu163.com...

  • Page 21: Loading Motor Pcb

    HOTPLUG DI (M to F) u163 AREES PAR UN ETANT NOTE: THIS INTERCONNECTION DIAGRAM IS THE LATEST AT THE TIME AN POINT DE VUE SECURITE OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE CELLS DECRITES NCLATURE DES PIECES DV-LX50 http://www.xiaoyu163.com...

  • Page 22: Overall Block Diagram

    4.2 OVERALL BLOCK DIAGRAM 3 7 63 1515 0 L 13942296513 u163 DV-LX50 http://www.xiaoyu163.com...

  • Page 23: Power Block Diagram

    4.3 POWER BLOCK DIAGRAM 3 7 63 1515 0 L 13942296513 u163 DV-LX50 http://www.xiaoyu163.com...

  • Page 24: Regulator Block Diagram

    4.4 REGULATOR BLOCK DIAGRAM 3 7 63 1515 0 L 13942296513 u163 DV-LX50 http://www.xiaoyu163.com...

  • Page 25: Dvd Block Diagram

    4.5 DVD BLOCK DIAGRAM 3 7 63 1515 0 L 13942296513 u163 DV-LX50 http://www.xiaoyu163.com...

  • Page 26: Audio Block Diagram

    4.6 AUDIO BLOCK DIAGRAM 3 7 63 1515 0 L 13942296513 u163 DV-LX50 http://www.xiaoyu163.com...

  • Page 27: Operation Block Diagram

    4.7 OPERATION BLOCK DIAGRAM 3 7 63 1515 0 L 13942296513 u163 DV-LX50 http://www.xiaoyu163.com...

  • Page 28: Scart Block Diagram

    4.8 SCART BLOCK DIAGRAM 3 7 63 1515 0 L 13942296513 u163 DV-LX50 http://www.xiaoyu163.com...

  • Page 29: Diagnosis

    3 of IC1702 about 1.8V ? Is the voltage at pin 4 Check of IC1703. of IC1703 about 5V? L 13942296513 Check of X4001,IC4002 Is the waveform at and peripheral circuit. X4001 about 1.5V? Write DVD ROM DATA. u163 DV-LX50 http://www.xiaoyu163.com...
  • Page 30 DECK DOSE NOT ACCEPT OPEN/CLOSE Is the voltage at pin Check V+6A line of 8,19 of IC2301 POWER BLOCK. about DC6V? Is the lose connection Check CD2302 connection at CD2302 to DECK? to DECK. Change DVD LOADER. L 13942296513 u163 DV-LX50 http://www.xiaoyu163.com...
  • Page 31 Is there a signal Check IC4002 and at pin 187 of IC4002? peripheral circuit. Is the video signal CheckJ8102. at pin 33 of IC8101? Is the video signal Check IC8105 and at pin 8 of CP8101? peripheral circuit. u163 Change IC8101. DV-LX50 http://www.xiaoyu163.com...
  • Page 32 1 and Check J7001,J7002,J7003. 7 of IC7006? Is there waveform at pins Is there voltage at pin 8 of Check AT ±12V. 2,3,5 and 6 of IC8003? IC7006 about +12V? Change IC7006. Change IC7006. u163 DV-LX50 http://www.xiaoyu163.com...
  • Page 33 Is there waveform at pins IC7009,IC7010 and IC7013, 17,18 and 25,26 of IC7001, IC7002 and IC7003? IC7014 and peripheral circuit. Is there waveform at pins Check IC7001,IC7002,IC7003 1 - 6 of CP7001? and peripheral circuit. Check IC4006,IC4007 and peripharal circuit. u163 DV-LX50 http://www.xiaoyu163.com...
  • Page 34 NO OPTICAL OUT Is the voltage at pin 2 of Check P.CON D+3.3V. OS4001 about 3.3V? Refer to "NO DIGITAL AUDIO Is the waveform at pin 3 ON PLAYBACK OF of OS4001 about 2.5V? COAXAL JACK" Change OS4001. u163 DV-LX50 http://www.xiaoyu163.com...
  • Page 35 DVD IC generated, because the DVD processing is performed by a single chip. (DVD MT PCB Assy : IC4002) 64M SDRAM No power. (DVD MT PCB Assy : IC4005) Block noise is generated during playback. L 13942296513 u163 DV-LX50 http://www.xiaoyu163.com...

  • Page 36: Method For Diagnosising Degradation Of The Lds On The Pickup Assy

    R4068 Q8502 Q8501 D1701 Q1705 R4069 DMG094A NR4003 R4066 R4064 NR1701 R8115 R4037 W833 IC8105 R4036 R8134 Q4007 Q4006 NR2301 Q8502 Q8501 DMG094A Q8111 Q8110 W868 NR2301 Q2306 R2306 Q1702 Q2306 R2306 Q1702 Q8113 Q8112 SIDE B u163 DV-LX50 http://www.xiaoyu163.com...

  • Page 37: Service Mode

    • The video signal and the audio signal are outputted during the servicemode. • The SKIP key and the SCAN key are effective during the service mode. SERVICE MODE: OFF POWER u163 GGF1381 Service mode remote control unit DV-LX50 http://www.xiaoyu163.com...

  • Page 38: Service Mode In

    DVD : Press the [TEST] (A8-5E) and [1] (A8-01) keys in order, and turn on the laser diode (650n). : Press the [TEST] (A8-5E) and [4] (A8-04) keys in order, and turn on the laser diode (780n). L 13942296513 u163 DV-LX50 http://www.xiaoyu163.com...

  • Page 39: Display Specification Of The Service Mode

    PAL system : [PAL] Automatic setting : [AUTO] Scart terminal output [SK − ∗ ∗] (Display only the WY model which can do the output setting u163 of scart terminal.) VIDEO : [00] S-VIDEO : [01] : [02] DV-LX50 http://www.xiaoyu163.com...

  • Page 40: Functional Specification Of The Shortcut Key

    After you press the A.MON key while holding the ESC key pressed and then input the region number, if the number is different from that set in the unit, an error message is displayed, and the tray opens. u163 DV-LX50 http://www.xiaoyu163.com...

  • Page 41: Functional Specification Of The Service Mode

    7.0e -4 : NG 3 EDC/ID error history (ID Address, EDC/ID errors, last eight errors) L 13942296513 Note: ∗ Error of AV1 is not supported in this player. Indication plan contents Character in bold : Item name : Information display u163 DV-LX50 http://www.xiaoyu163.com...

  • Page 42: Disassembly

    Remove the Front Cabinet in the direction of arrow (A). Disconnect the following connectors: Fig. 1-3 (CP505, CP602, CP606 and CP3001). Remove the 10 screws 3. Remove the Operation/Operation 2/Operation 3 PCB in the direction of arrow (B). u163 DV-LX50 http://www.xiaoyu163.com...
  • Page 43 Remove the Rear Jack PCB in the direction of arrow (A). Disconnect the following connector: (CP7001). Remove the 4 screws 2. Remove the 4 screws 3. Remove the DVD MT PCB in the direction of arrow (B). Fig. 1-6 Rear Jack PCB DVD MT PCB u163 Fig. 1-5 DV-LX50 http://www.xiaoyu163.com...
  • Page 44 Loading Sub Ass'y Loader Sub Ass'y Gear Pulley Loading Motor Insulator (R) Loading Motor PCB Ass’y Traverse Ass'y u163 • Screw Torque: 2.5±0.3kgf•cm (Screw 1) • Screw Torque: 1.0±0.3kgf•cm (Screw 2) Fig. 2-3-A • Screw Torque: 2.0±0.3kgf•cm Fig. 2-2-A DV-LX50 http://www.xiaoyu163.com...
  • Page 45 3 supports 1. between A and B. Fig. 2-3-D 2. Remove the Plate Clamper, Magnet Clamper and Clamper. Check Hook Check Hook Plate Clamper Magnet Clamper Main Frame u163 Loading Motor PCB Ass’y Check Hook Clamper Fig. 2-3-E Fig. 2-5-A DV-LX50 http://www.xiaoyu163.com...
  • Page 46 7. Remove the screw 4. Feed Motor 8. Remove the Gear Feed. 9. Remove the 2 screws 5. 10. Remove the Feed Motor. u163 Safety surface for pressing 11. Remove the Gear Motor. of the insert. Fig. 2-7-C DV-LX50 http://www.xiaoyu163.com...
  • Page 47 To DVD MT PCB Ass'y 135mm To Loading Motor PCB Ass'y Printing Surface Fold 260mm Fig. 2-8-A [ 6 pin FFC ] To DVD MT PCB Ass'y 90mm To Switch PCB Ass'y Printing Surface Fold u163 210mm Fig. 2-8-B DV-LX50 http://www.xiaoyu163.com...

  • Page 48: Each Setting And Adjustment

    While the screen shown at left is being displayed, updating is in progress. DO NOT TURN OFF THE POWER DURING UPDATING. 4 Updating of the firmware is completed. When the screen with the Pioneer logo is displayed, updating is completed. The time required for updating is about 2 minutes. u163 DV-LX50 http://www.xiaoyu163.com...
  • Page 49 2 If updating of the firmware using the disc for updating failed • Was the disc for updating recognized properly? Check if the volume label of the disc is PIONEER. • Is playback of a disc other than the disc for updating possible? If playback of a test CD is also impossible, a reading section, such as PU, may be defective.

  • Page 50: 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 SECTION L 13942296513 u163 DV-LX50 http://www.xiaoyu163.com...
  • Page 51 (English/Italian) Operating Instructions See Contrast table (2) (French/German) Operating Instructions See Contrast table (2) (2) CONTRAST TABLE DV-LX50/WYXZT5 and DV-LX50/WYXZTUR5 are constructed the same except for the following: Mark No. Symbol and Description DV-LX50/WYXZT5 DV-LX50/WYXZTUR5 7 Operating Instructions (English/Italian) J2K80221A...

  • Page 52: Exterior Section

    9.2 EXTERIOR SECTION 3 7 63 1515 0 NON-CONTACT SIDE CONTACT SIDE L 13942296513 u163 DV-LX50 http://www.xiaoyu163.com...
  • Page 53 06CK790301 Screw,Tap Tite(B) PIBIND (3x6) 8109Q3060S Screw,Tap Tite(B) BIND (3x8) 810923080L (2) CONTRAST TABLE L 13942296513 DV-LX50/WYXZT5 and DV-LX50/WYXZTUR5 are constructed the same except for the following: Mark No. Symbol and Description DV-LX50/WYXZT5 DV-LX50/WYXZTUR5 1 DVD MT PCB Assy A2K802A130...

  • Page 54: Dvd Mecha Section

    CD2301 NOTE: Applying positions AA, AB and AC for the CLASS PART NO. MARK grease are displayed for this section. GREASE GEM1018 u163 Check if the correct grease is applied for each GYA1001 position. GEM1036 Screw tight GYL1001 DV-LX50 http://www.xiaoyu163.com...
  • Page 55 L 13942296513 Feed Rack Assy 92AAA0017A Screw,T-Tite(B) (M1.7x5.0 P3) 813381750U Screw,Gear Feed 92P700007A Cord Jumper (CD2301) 122H062102 Switch (SW1) 0515S32003 Push Switch (SW2) 0500101036 Screw,Tap Tite(P) (2.6x8) 811022680U Sems.Tap Tite(P) (2x8) 816112080U Screw (Bind 2x8) 811022080U Cushion 800WF00072 u163 DV-LX50 http://www.xiaoyu163.com...

  • Page 56: Schematic Diagram

    101 102 103 104 105 106 107 108 10 V+3D JG4001 JG4002 u163 TP4109 PWR# PCE# PRD# UWR# NOTE:THE DC VOLTAGE EACH PART WAS NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST MEASURED WITH THE DIGITAL TESTER OF PRINTING AND SUBJECT TO CHANGE W DURING PLAYBACK. DV-LX50 http://www.xiaoyu163.com...
  • Page 57 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 C4104 0.01 B R4084 C4091 2.2K 0.1 B u163 R4051 JG4010 RESET PCB130 DMG094 TIC DIAGRAM IS THE LATEST AT THE TIME AND SUBJECT TO CHANGE WITHOUT NOTICE DV-LX50 http://www.xiaoyu163.com...

  • Page 58: Dvd Mt Pcb Assy (2/9)

    R4055 XCSDF2 RY/BY# Q4010 KTC3875S_Y_RTK R4078 PWDN# MP MODIFY VOFF SQUEEZE LETTER PRD# VSEL2 DDC_CTL C4054 0.1 B PCE# R4021 R4012 PRD# PCE# Q4003 PWR# KTC3875S_Y_RTK UWR# XCSDF0 XCSDF1 XCSDF2 VOFF LETTER SQUEEZE VSEL2 DDC_CTL V+3D D_GND u163 DV-LX50 http://www.xiaoyu163.com...
  • Page 59 SH4002 u163 YQ-12 YQ-12 TP4050 NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME NOTE:THE DC VOLTAGE EACH PART WAS OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE MEASURED WITH THE DIGITAL TESTER PCB130 DURING PLAYBACK. DMG094 DV-LX50 http://www.xiaoyu163.com...

  • Page 60: Dvd Mt Pcb Assy (3/9)

    SLD+ R2329 TP2327 SPD- TP2328 MOT_SPDL+ SPD+ PGND MOT_SPDL- C2307 V+3F VCTL 0.1 B OPIN W802 Vcc2 C2311 0.1 B VOLD- VOLD+ VOTK- VOTK+ u163 NOTE:THE DC VOLTAGE EACH PART WAS MEASURED WITH THE DIGITAL TESTER DURING PLAYBACK. DV-LX50 http://www.xiaoyu163.com...
  • Page 61 0.1 B VOLD+ VOSL- VOTK- VOFC- VOTK+ VOFC+ u163 CAUTION: DIGITAL TRANSISTOR ACH PART WAS NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME THE DIGITAL TESTER OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE PCB130 DMG094 DV-LX50 http://www.xiaoyu163.com...

  • Page 62: Dvd Mt Pcb Assy (4/9)

    DATA1/DSD_C SW_LRCK/DSD-LFE LRCK1/DSD_LFE SW_DATA2/DSD-LS DATA2/DSD_LS SW_LRCK/DSD-RS LRCK1/DSD_RS SW_DATA0/DSD-L DATA0/DSD_L SW_LRCK/DSD-R LRCK0/DSD_R u163 NOTE: THIS SCHEMATIC DIAGRAM IS THE LAT NOTE:THE DC VOLTAGE EACH PART WAS OF PRINTING AND SUBJECT TO CHANGE MEASURED WITH THE DIGITAL TESTER DURING PLAYBACK. DV-LX50 http://www.xiaoyu163.com...
  • Page 63 +-1% C4077 1/10W BLM18AG601SN1D BLM18AG601SN1D L 13942296513 YK_P L4002 SBT-0180W W815 C4086 DATA1/DSD-C R4045 SW_DATA1/DSD-C DSD-LFE R4048 SW_LRCK/DSD-LFE CAUTION: DIGITAL TRANSISTOR u163 TIC DIAGRAM IS THE LATEST AT THE TIME AND SUBJECT TO CHANGE WITHOUT NOTICE PCB130 DMG094 DV-LX50 http://www.xiaoyu163.com...

  • Page 64: Dvd Mt Pcb Assy (5/9)

    (30V,0.1A,0.2W) Q8502 KTK5132U-RTK/P (30V,0.1A,0.2W) R8528 V+3V u163 NOTE:THE DC VOLTAGE EACH PART WAS NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE T MEASURED WITH THE DIGITAL TESTER OF PRINTING AND SUBJECT TO CHANGE WITHOUT N DURING PLAYBACK. DV-LX50 http://www.xiaoyu163.com...
  • Page 65 R8513 C8522 180 +-1% 0.15 B R8514 4.7K C8513 B8504 MMZ1608R102CT 0.012 B R8508 C8515 180 +-1% 0.15 B R8509 4.7K W868 u163 CAUTION: DIGITAL TRANSISTOR S THE LATEST AT THE TIME TO CHANGE WITHOUT NOTICE PCB130 DMG094 DV-LX50 http://www.xiaoyu163.com...

  • Page 66: Dvd Mt Pcb Assy (6/9)

    CH1 IN B CH2 SAG R8143 (MT1389) W835 B/CB CH2 IN B CH3 OUT (MT1389) W844 R/CR CH3 IN B CH3 SAG UNREG+5V I2C-A1 I2C-A0 B8108 V+5V MMZ1608R102CT C8132 FUCTION TAB YK_P C8129 0.01 B R8117 100 u163 R8116 100 DV-LX50 http://www.xiaoyu163.com...
  • Page 67 IN1(L) 6.3V DRIVER DRIVER C8153 C8155 IN2(H) IN2(H) L 13942296513 JG8101 CVBS IC8103 4CH VIDEO SW TS3V340PWR FUCTION TABLE FUCTION D=S1 D=S2 u163 Disconnect J8102 S+VIDEO(GOLD) R102-D04A(V)GGG-01 YUV/D ---> W871,W872,W873 ON PCB130 RGB/YUV ---> IC7302 MOUNT,JP DEL DMG094 DV-LX50 http://www.xiaoyu163.com...

  • Page 68: Dvd Mt Pcb Assy (7/9)

    (DVD PCB) (WYXZTUR5:A2K807A130) FROM/TO POWER PORT V+5H D_GND FROM/TO CEC/SUB MICON HDMI_HPD HDMI_CEC FROM/TO MPEG/MICON/DSP TX2+ TX2- TX1+ TX1- TX0+ TX0- TXC+ TXC- 89S_HPD HDMI_SCL HDMI_SDA W855 A_GND W856 W861 L 13942296513 SH4003 SH4004 YQ-12 YQ-12 u163 A_GND DV-LX50 http://www.xiaoyu163.com...
  • Page 69 CLK+ +-1% CLK-S TXC- CLK- W881 V+5H C5926 Q5906 10P CH KTK5132U-RTK/P HDMI_SCL POWER HDMI_SDA HOTPLUG C5901 HDMI TYPE-A 0.01 B Q5907 W840 KTK5132U-RTK/P W853 HDMI_HPD C5925 100P CH 89S_HPD Q5902 KTK5132U-RTK/P V+3D B5901 MMZ1608R102CT u163 PCB130 DMG094 DV-LX50 http://www.xiaoyu163.com...

  • Page 70: Dvd Mt Pcb Assy (8/9)

    B3006 PRE_LED-BL PRELED(BLUE) STBY/ON-LED MMZ1608R102CT B3007 PRE_LED-WH PRELED(WHITE) MMZ1608R102CT LED+5V SW NR3004 DGND 4D03WGJ0220T5E Q3008 DGND KTA1505S-Y-RTK/P LED+5V R3015 Q3003 2SK393800L (30V,0.1A,0.1W) DO (F to M) R3049 LED_ON DI (M to F) u163 00_6232_017_006_800+ LED+5V SW Q3009 KRC407-RTK/P DV-LX50 http://www.xiaoyu163.com...
  • Page 71 R3054 PWDN# R3041 Q3011 KTA1504S_Y_RTK ** Checker mode ** POWER_ON RESET R3005 (30V,0.1A,0.1W) X3001 V+3D CSTCE12M0G52-R0 Q3010 2SK393800L R3056 Q3012 3.3K PWDN SW KRC407-RTK/P SUB_INT Q3003 Q3004 Q3005 2SK393800L 2SK393800L 2SK393800L (30V,0.1A,0.1W) (30V,0.1A,0.1W) (30V,0.1A,0.1W) R3037 u163 PCB130 DMG094 DV-LX50 http://www.xiaoyu163.com...

  • Page 72: Dvd Mt Pcb Assy (9/9)

    FROM/TO POWER R1707 R1708 EC31QS04 470 +-1% CP1702 (CP502) A2001WV2-11P P.ON-H UNREG+5V P.CON+6V GND(M) AT+4V AT+4V u163 AT+5.2V FL ON NOTE:THE DC VOLTAGE EACH PART WAS NOTE: THIS SC OF PRIN MEASURED WITH THE DIGITAL TESTER DURING PLAYBACK. DV-LX50 http://www.xiaoyu163.com...
  • Page 73 V+5E V+5E FL-28V_ON R1720 +3.3V DISCHARGE Q1705 D_GND R1726 KTC3875S_Y_RTK P.CON SW Q1706 KTC3875S_Y_RTK FRROM/TO MEMORY D_GND u163 PCB130 DMG094 NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE DV-LX50 http://www.xiaoyu163.com...

  • Page 74: Audio Pcb Assy (1/2)

    XMMUTE XAMUTE (2125) XDACRST XDFSCK R7116 D7002 XDFSI MA111 XCSDF2 R7117 XCSDF1 XCSDF0 IR IN J7005 MSJ-035-12A_PPO(O87) V+3D R7113 RGB+12V PMCK/DBCK KRC407-RTK u163 PBCK/GND DATA1/DSD_C SH7001 SH7002 SH7003 SH7004 LRCK1/DSD_LFE YQ-12 YQ-12 YQ-12 YQ-12 DATA2/DSD_LS LRCK1/DSD_RS DATA0/DSD_L LRCK0/DSD_R DV-LX50 http://www.xiaoyu163.com...
  • Page 75 REG+3.3V(1A/1.3W) IC IC7018 AGND KIA78D33F XMMUTE XDACRST LRCK1/GND PBCK1/GND PMCK/DBCK DATA2/DSD_LS RGB+12V SW DATA1/DSD_C Q7024 0/DSD_LFE KTA1505S-Y-RTK/P XDFSO XDFSI XDFSCK 11.5 XCSDF1 XCSDF2 IR IN AT+12V J7005 +3.3V -035-12A_PPO(O87) RGB+12V SW Q7023 R7122 KRC407-RTK/P 1/4W 0 (2125) u163 DV-LX50 http://www.xiaoyu163.com...

  • Page 76: Audio Pcb Assy (2/2)

    LRCK/DSD_R IOUT_L+ C7151 DATA2/DSD_LS PBCK/GND 33P CH DATA/DSD_L AGND2 V+3D R7125 W842 VCC1 R7121 PMCK/DBCK SCKI/DBCK VCOML AGND DGND VCOMR IREF R7085 10K+-1% AGND1 XCSDF1 IOUT_R- XDFSI XDFSCK IOUT_R+ TP7005 u163 XDFSO AGND3R W851 W843 XDACRST VCC2R W865 DV-LX50 http://www.xiaoyu163.com...
  • Page 77 2.2K M -11.9 -2.8 +-0.5% MP MODIFY C7125 R7109 R7111 C7130 R7099 330P M +-0.5% +-0.5% Iout- 1.8K +-0.5% R7100 u163 Iout+ R7102 1.8K +-0.5% W843 +-0.5% -2.8 11.9 C7112 R7093 0.0022 M 2.2K M +-0.5% R7088 +-0.5% DV-LX50 http://www.xiaoyu163.com...

  • Page 78: Rear Jack Pcb Assy

    Q8002 21PIN CTL IN 12.1 21PIN CTL DRV R8003 KTC3875S_Y_RTK 11.4 KTA1504S_Y_RTK 390 1/4W 11.4 12.1 R8001 4.7K 1/4W CAUTION: DIGITAL TRANSISTOR u163 CAUTION: DIGITAL TRANSISTOR NOTE: THIS SCHEMATIC DIAGRAM IS T OF PRINTING AND SUBJECT TO C DV-LX50 http://www.xiaoyu163.com...
  • Page 79 21PIN_CTL W828 W829 W830 SH8001 SH8002 W831 u163 EMATIC DIAGRAM IS THE LATEST AT THE TIME NOTE:THE DC VOLTAGE EACH PART WAS ING AND SUBJECT TO CHANGE WITHOUT NOTICE MEASURED WITH THE DIGITAL TESTER DURING PLAYBACK. PCB250 DEG138 DV-LX50 http://www.xiaoyu163.com...

  • Page 80: Operation1, Operation2 And Operation3 Pcb Assys

    Vout R666 FIP-28V KEY1 47 1/4W PONLED V+12E OS651 PURE_LED ROM-V3140THC1 SACD_LED W816 IR RECEIVER(BPF=40kHz) FL_GND u163 NOTE:THE DC VOLTAGE EACH PART WAS NOTE: THIS SCHEMATIC D MEASURED WITH THE DIGITAL TESTER OF PRINTING AND S DURING PLAYBACK. DV-LX50 http://www.xiaoyu163.com...

  • Page 81: Operation Pcb

    HDMI_LED V+5E FP_DO FP_SCK W806 V+5E FP_DI LED+5V MP MODIFY R624 PRELED_WH R630 PRELED_BL FL_GND PONLED KEY1 u163 NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME PCB270 OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE DEG135 DV-LX50 http://www.xiaoyu163.com...

  • Page 82: Power Pcb Assys

    :LES PIECES REPAREES PAR UN CAUTION :SINCE THESE PARTS MARKED BY DANGEREUSES AN POINT DE VUE CRITICAL FOR SAFETY,USE ONES CAUTION N’UTILISER QUE CELLS DECRITES :F503 IS MANUFACTURED BY SKYGATE. TYPE 20N DESCRIBED IN PARTS LIST ONLY DANS LA NOMENCLATURE DES P DV-LX50 http://www.xiaoyu163.com...
  • Page 83 NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME MEASURED WITH THE DIGITAL TESTER GEREUSES AN POINT DE VUE SECURITE OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE DURING PLAYBACK. TILISER QUE CELLS DECRITES S LA NOMENCLATURE DES PIECES PCB240 DPF015 DV-LX50 http://www.xiaoyu163.com...

  • Page 84: Wave Forms

    NO.59 NO.62 NO.34 NO.53 IC4001-pin5 (SDA) JA4001-pin2 (Coaxial Out) IC4007-pin4 (SW_DATA2/DSD_LS) V:1V/div. H:20μs/div. V:0.1V/div. H:0.1μs/div. V:1V/div. H:1μs/div. NO.35 NO.77 D035 NO.54 IC8501-pin30 (CLKIN_A) VIDEO DAC MEMORY IC4007-pin7 (SW_LRCK/DSD-RS) IC4008-pin11 (LE) V:1V/div. H:10ns/div. V:1V/div. H:1μs/div. NO.55 NO.63 D033 u163 DV-LX50 http://www.xiaoyu163.com...
  • Page 85 CES/SUB MICON V:0.2V/div. H:10μs/div. V:1V/div. H:20μs/div. NO.71 L 13942296513 CP3001-pin16 (D1) J8102-pin6 (CVBS) V:1V/div. H:50μs/div. V:0.5V/div. H:10μs/div. NO.72 J8102-pin1 (S-Y) CP3001-pin15 (STB) V:0.5V/div. H:20μs/div. V:1V/div. H:10μs/div. NO.69 NO.73 J8102-pin4 (S-C) IC3001-pin58 (CF2) V:0.5V/div. H:20μs/div. V:1V/div. H:50ns/div. NO.70 NO.74 u163 DV-LX50 http://www.xiaoyu163.com...
  • Page 86 V:1V/div. H:0.5ms/div. V:1V/div. H:0.5ms/div. V:0.2V/div. H:20μs/div. D044 D048 L 13942296513 J7003-pin2 (FR) J8001-pin7 (B-Out) V:1V/div. H:0.5ms/div. V:0.2V/div. H:10μs/div. D040 D045 D049 J7004-pin3 (C) SURROUND J8001-pin15 (R/C-Out) V:1V/div. H:0.5ms/div. V:0.2V/div. H:20μs/div. D046 D050 J8001-pin19 (V/Y-Out) V:0.2V/div. H:10μs/div. D047 u163 DV-LX50 http://www.xiaoyu163.com...

  • Page 87: Pcb Connection Diagram

    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 P.C.Board Chip Part transistor Resistor array 3-terminal regulator L 13942296513 u163 DV-LX50 http://www.xiaoyu163.com...

  • Page 88: Dvd Mt Pcb Assy

    C1706 C1707 C2320 R3011 R3007 R3013 R3012 R3037 C1704 R3014 C1728 R1701 R3010 CP2301_1 C2321 C3004 R3017 R3009 C3008 R3049 R3052 C1719 C1720 R3043_1 C1701 R3053 R1722 C2311 W802 R2325 R3042 B3002 W814 B3003 u163 CP2303 CP2302 W821 DV-LX50 http://www.xiaoyu163.com...
  • Page 89 3 7 63 1515 0 SIDE B SIDE B DVD MT PCB ASSY L 13942296513 u163 DV-LX50 http://www.xiaoyu163.com...

  • Page 90: Audio Pcb Assy

    C7001 C7024 C7020 R7009 C7035 R7010 C7030 C7017 IC7005 R7011 C7037 R7038 C7026 C7007 IC7006 C7023 C7038 C7016 R7037 IC7004 C7029 C7010 C7034 C7025 C7019 R7002 R7004 R7001 CP7003 R7003 u163 C7144 W801 D7003 Q7024 CP7002 R7122 R7118 DV-LX50 http://www.xiaoyu163.com...
  • Page 91 R7066 Q7016 R7071 R7074 Q7022 W843 R7099 R7102 L 13942296513 R7100 Q7021 W865 R7041 Q7011 R7097 W841 R7101 W842 R7098 R7035 R7024 R7027 R7025 Q7010 W811 W858 Q7009 R7022 R7042 R7026 W810 Q7012 R7023 Q7007 W857 Q7023 u163 DV-LX50 http://www.xiaoyu163.com...

  • Page 92: Operation1, 2, 3, Rear Jack And Power Pcb Assys

    W046 W047 W029 R628 R605 W028 W033 W035 R603 W036 W813 W039 R664 W022 R601 W044 R626 J8001 R620 u163 R621 DEG138A R627 L8001 R8013 R625 R8012 R8006 R619 R8003 R8001 CP8001 CP8002 CP602 REAR JACK PCB ASSY DV-LX50 http://www.xiaoyu163.com...
  • Page 93 R607 R614 R613 R623 R662 C658 R665 C675 R658 R657 DEG138A R8011 u163 C8009 C608 W815 C8008 R8014 C8007 W816 R8010 R8008 R8009 D8003 D8001 R8007 C654 C8002 D8002 D8004 C8001 D8005 R8004 R8005 REAR JACK PCB ASSY DV-LX50 http://www.xiaoyu163.com...

  • Page 94: Loading Motor And Sw Assys

    11.4 LOADING MOTOR and SW ASSYS 3 7 63 1515 0 SIDE A SIDE A LOADING MOTOR LOADING MOTOR (INSERTED PARTS) (CHIP MOUNTED PARTS) L 13942296513 DED020A M2602 M2601 u163 DV-LX50 http://www.xiaoyu163.com...

  • Page 95: Pcb Parts List

    0504R01T38 IC8102 IC THS7303PWR I5CJ073030 u163 IC8103 IC TS3V340PWR I5CJ0V3400 IC8104 IC MM1505XNRE I0UF015050 OPERATION 3 PCB ASSY IC8105 IC MM1507XNRE I0UF015070 SWITCHES IC8501 IC ADV7340BSTZ IFDF073400 SW660, SW663 - SW666 SWITCH TACT 0504R01T38 IC8502 IC PQ070XZ5MZPH I0GF9Z5MZ0 DV-LX50 http://www.xiaoyu163.com...
  • Page 96 Mark No. Description Part No. 3 7 63 1515 0 POWER PCB ASSY RESISTORS R526 R,FUSE 68 OHM 1/4W R65584680J L 13942296513 u163 DV-LX50 http://www.xiaoyu163.com...

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