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LG DVS7905 Service Manual

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DVD-VCR
SERVICE MANUAL
MODEL : DVS7905/DVS7905S/DVS7905B
CAUTION
BEFORE SERVICING THE UNIT, READ THE "SAFETY PRECAUTIONS"
IN THIS MANUAL.
PAL
Hi-Fi
SEPTEMBER,2003
P/NO : 3829RGP007S

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  • Page 1 DVD-VCR SERVICE MANUAL MODEL : DVS7905/DVS7905S/DVS7905B CAUTION BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS” IN THIS MANUAL. Hi-Fi SEPTEMBER,2003 P/NO : 3829RGP007S...
  • Page 2 CONTENTS SECTION 1 ..SUMMARY SECTION 2 ..CABINET & MAIN CHASSIS SECTION 3 ..ELECTRICAL SECTION 4 ..MECHANISM OF VCR PART SECTION 5 ..MECHANISM OF DVD PART SECTION 6 .
  • Page 3 SECTION 1 SUMMARY CONTENTS PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS ..1-3 SERVICING PRECAUTIONS .................. 1-4 SERVICE INFORMATION FOR EEPROM IC SETTING ........1-5 SPECIFICATIONS ....................1-6...

  • Page 4: Product Safety Servicing Guidelines For Video Products

    PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS CAUTION : DO NOT ATTEMPT TO MODIFY THIS PRODUCT IN ANY WAY, SUBJECT : X-RADIATION NEVER PERFORM CUSTOMIZED INSTALLATIONS WITHOUT MANUFAC- 1. BE SURE PROCEDURES AND INSTRUCTIONS TO ALL SERVICE PER- TURER’S APPROVAL. UNAUTHORIZED MODIFICATIONS WILL NOT ONLY SONNEL COVER THE SUBJECT OF X-RADIATION.

  • Page 5: Servicing Precautions

    SERVICING PRECAUTIONS CAUTION : Before servicing the VCR+DVD covered by this Electrostatically Sensitive (ES) Devices service data and its supplements and addends, read and fol- Some semiconductor (solid state) devices can be damaged low the SAFETY PRECAUTIONS. NOTE : if unforeseen cir- easily by static electricity.

  • Page 6: Service Information For Eeprom Ic Setting

    (Setup upon BOM depending on OPT1~OPT6 WR : OK I : EXIT MOVE : model) EDIT : • Since an initial remote control is set to LG for LG model, appropriately set optiona data using the MASKROM : R00 cursor Up/Down key.

  • Page 7: Specifications

    SPECIFICATIONS DVD PART Power supply AC 200~240V, 50 Hz Power consumtion Mass 5.4kg External dimensions 430 x 97.5 x 360 (W x H x D) Signal system PAL 625/50, NTSC 525/60 Laser Semiconductor laser, wavelength 650nm Frequency range (digital audio) 4 Hz to 20 kHz Signal-to-noise ratio (digital audio) More than 100 dB (EIAJ)
  • Page 8 SECTION 2 CABINET & MAIN CHASSIS CONTENTS 1. EXPLODED VIEWS ........................2-2 1. Cabinet and Main Frame Section ...................2-2 2. Packing Accessory Section ....................2-3...
  • Page 9 EXPLODED VIEWS 1. Cabinet and Main Frame Section OPTIONAL PARTS...
  • Page 10 2. Packing Accessory Section 810 CABLE ASS'Y, RF CABLE, COAXIAL PLUG ASS'Y(YELLOW) PLUG ASS'Y(RED/WHITE) 813 PLUG ASS'Y(BLACK) BATTERY 821 SCART CABLE REMOCON INSTRUCTION ASSEMBLY PACKING PACKING BOX CARTON OPTIONAL PARTS...

  • Page 11: Table Of Contents

    SECTION 3 ELECTRICAL CONTENTS OVERALL BLOCK DIAGRAM DVD PART ......3-2 VCR PART ELECTRICAL TROUBLESHOOTING GUIDE & WAVEFORMS ........3-54 ELECTRICAL ADJUSTMENT 1. SYSTEM OPERATION FLOW ......3-54 PROCEDURES ............3-3 2. TEST & DEBUG FLOW ........3-55 ELECTRICAL TROUBLESHOOTING DETAILS AND WAVEFORMS ON GUIDE ................3-4 SYSTEM TEST AND DEBUGGING ....3-61...
  • Page 12 OVERALL WIRING DIAGRAM...

  • Page 13: Vcr Part

    VCR PART ELECTRICAL ADJUSTMENT PROCEDURES 1. Servo Adjustment 1) PG Adjustment • Test Equipment a) OSCILLOSCOPE C) PAL MODEL : PAL SP TEST TAPE b) NTSC MODEL : NTSC SP TEST TAPE • Adjustment And Specification MODE MEASUREMENT POINT ADJUSTMENT POINT SPECIFICATION V.Out PLAY...

  • Page 14: Electrical Troubleshooting Guide

    ELECTRICAL TROUBLESHOOTING GUIDE 1. Power(SMPS) CIRCUIT (1) No 5.3VA (SYS/Hi-Fi/TUNER) (2) No 12VA (TO CAP, DRUM MOTOR) NO 5.3VA. NO 12VA. Replace the F101. Is the Vcc(13V) supplied Check or Replace Is the F101 normal? (Use the same Fuse) to (+) terminal in D115? the D110.
  • Page 15 (4) No 5V (TO DVD) (5) No 33V (TUNER) NO 5V. No 33V. Is 5.3VA put into Check the Power 5.3VA Line Check. Is Q162 Base “H”? the Q150 Emitter? Control. Is the Q162 Base Check the Power Check or Replace “H”? Control.
  • Page 16 (8) No 3.3V(TO DVD) NO 3.3V. Check or Replace Is Vcc(4V) supplied to IC152 Pin1? the D111. Check the Power Is the Q162 Base “H”? Control. Check or Replace IC152, R156, C153.

  • Page 17: System/Key Circuit

    2. SYSTEM/KEY CIRCUIT (1) AUTO STOP Auto Stop Does the SW25 waveform Check the Drum Motor appear at the IC501 signal. Pin105? Do T/UP Reel Pulses Do the T-UP Reel Pulses Does 5.2V appear at the appear at the Q514 appear at the IC501 Pin49? RS501? Base terminal ?

  • Page 18: Servo Circuit

    3. SERVO CIRCUIT (1) Unstable Video in PB MODE Unstable Video in PB Mode. Does the Noise level of the screen change periodically? Do the CTL pulses appear Is adjusting the height of at the IC501 Pin8? the CTL Head accurate? Does the CFG waveform Readjust the height of the appear at the IC501...
  • Page 19 2. SERVO CIRCUIT (3) When the Capstan Motor doesn’t run, When the Capstan Motor doesn’t run, Refer to “SMPS(CAPSTAN/12Volt) Does 12VA appear at the PMC01? Trouble Shooting”. Does 2.8V appear at the PMC01? Check the PMC01 and the Capstan Does the PWM signal appear at the IC501 Pin108? Motor Ass’y.
  • Page 20 (4) KEY doesn’t working KEY doesn’t working. Is 5V applied to the IC501 Refer to “SMPS 5.3VA Pin36? Trouble Shooting”. Does LED or FLD change Replace the defective when a function button is switches. pressed? 3-10...

  • Page 21: Y/C Circuit

    4. Y/C CIRCUIT (1) No Video in EE Mode, No Video in EE Mode Does the Video signal Check the 24Pin of Tuner. appear at the IC301 Pin48? Is 5V applied to the IC301 Check the 5.2VT, 5.3VA Pins18, 24, 42, 55, 72, 91? Line.
  • Page 22 3. Y/C CIRCUIT (2) When the Y(Luminance) signal doesn’t appear on the screen in PB Mode, Is 5.2VT, 5.3VA applied to the Check the line of the 5.2VT, 5.3VA Line. (Power Circuit) IC301 Pins24, 42, 55, 72, 91? Is the I C Bus siganl applied Refer to ‘SYSTEM I C BUS...
  • Page 23 3. Y/C CIRCUIT (3) When the C(Color) signal doesn’t appear on the screen in PB Mode, Is 5.2VT/5.3VA applied to the Check the line of the 5.2VT/ 5.3VA Line. (Power Circuit) IC301 Pins24, 42, 55, 72, 91. Is the Color Rotary signal Check the Color Rotary applied to the IC301 Circuit.
  • Page 24 3. Y/C CIRCUIT (4) When the Video signal doesn’t appear on the screen in REC Mode, Is the EE signal normal? Check EE Mode. Is 5.2VT/5.3VA applied to the Check the line of the 5.2VT/ IC301 Pins24,42,55,72,91? 5.3VA Line.(Power Circuit) Does PB Mdoe operate Check PB Mode.

  • Page 25: Hi-Fi Circuit

    5. Hi-Fi CIRCUIT (A) No Sound(EE Mode) No Sound. Check the TU Audio of IC801 Check the IC751 Pins30, 31. Pins2, 3. Check the DVD Audio of IC801 Check the DVD MODULE. (PMD02 Pins13, 15). Pins4, 5. Check the AV1 Audio of IC801 Check the Scart1 Jack.
  • Page 26 3. Y/C CIRCUIT (B) Hi-Fi Playback PB mode No Sound. Check the Vcc of IC801 Check Power 5.2V, 12VT. (Pins34, 40) Check the Hi-Fi Selection switch. Check IC501 Pin106 (A.H/SW) (IC801 Pin41) and the Tape quality. Is the RF Envelope at IC801 Pin44 over 2Vp-p? Check IC801 Pin42(Data), Check the parts of µ-COM...
  • Page 27 Hi-Fi REC. It can’t be recorded Hi-Fi Audio signal. Check Vcc of IC801.(Pins34, 40) Check Power 5V, 12VT. Check ports of µ-COM. Check IC801 Pin42(Data), Pin43(CLOCK). (IC501 pins 59, 60) Check Audio input signal of IC801 Do Audio signals appear at IC801 Pins2, 3(TU.A.), 4, 5(DVD.A.), Pins16, 17? 6, 7(AVI.A.), 8, 9(AV2.A.), 10, 11(AV3.A.).

  • Page 28: Tuner/If Circuit

    6. Tuner/IF CIRCUIT (A) No Picture on the TV screen No picture on the TV screen Does the Video signal at Is 33VT applied to TU701 Check 33VT line. the TU701 Pin24. Pin16? Is 5VT applied to TU701 Check 5VT line. Pin13? Does the Clock signal Check the lIC Clock Signal...
  • Page 29 (B) No Sound No Sound. Check the Vcc of IC751 Pins1, 11, 19, Check 5.0V Line. 22, 33. Check the Tuner SiF signal at IC751 Check the Tuner SIF of TU701 Pin22. Pin2. Check the oscillator of IC751 Pins5, 6. Replace X751 Check the IIC Clock and Data at IC751 Check the Audio of IC751 Pins30, 31.

  • Page 30: Block Diagrams

    BLOCK DIAGRAMS 1. POWER(SMPS) BLOCK DIAGRAM R101 SNUBBER BD101 BLOCK (D101, R104, C105, C106) C103 RECTIFIER & SMOOTHING TO CAP MOT 12VA DRIVE & S/W BLOCK (D110, C123, L122, D115 C126, C163) OVER CURRENT LIMIT 12VA REG D117 TO DRUM MOT BLOCK BLOCK 12VA...

  • Page 31: Tu/If, Nicam & A2 Block Diagram

    2. Tu/IF, NICAM & A2 BLOCK DIAGRAM 3. VPS BLOCK DIAGRAM COMBI SCART V792PK's 3-22 3-23...

  • Page 32: Y/C Block Diagram

    4. Y/C BLOCK DIAGRAM (PB MODE) (REC MODE) COMBI SCART V792PK's 3-24 3-25...

  • Page 33: Hi-Fi Block Diagram

    5. Hi-Fi BLOCK DIAGRAM VIDEO INPUT BLOCK Hi-Fi/ AUDIO INPUT 36 35 BLOCK Tu A.IN 'L' Tu A.IN 'R' A.OUT 'L' DVD A.IN 'L' A.OUT DVD A.IN 'R' IC802 To JACK A.OUT 'R' IC801 EU1 A.IN 'L' EU1 A.IN 'R' EU2 A.IN 'L' EU2 A.IN 'R' AV2 A.IN 'L'...

  • Page 34: System Block Diagram

    6. SYSTEM BLOCK DIAGRAM LD(+) LD(-) OTPB LED 'H' IC501 CANAL DET 'H' HD6432197A L/M CONTROL R525, R526 R/C IN(2W) CST SW 2fsc R524, R514, R518, R516, R589, C577, C576, L501, Q504 COMBI SCART V792PK's 3-28 3-29...

  • Page 35: Circuit Diagrams

    2. Voltages are DC-measured with a digital voltmeter MODIFIED OR ALTERED WITHOUT PERMISSION IMPLEMENTATION OF THE LATEST SAFETY AND during Play mode. FROM THE LG ELECTRONICS CORPORATION. ALL PERFORMANCE IMPROVEMENT CHANGES INTO COMPONENTS SHOULD BE REPLACED ONLY WITH No power.

  • Page 36: Tu/If, Nicam & A2 Circuit Diagram

    2. TU/IF, NICAM & A2 CIRCUIT DIAGRAM '03. 07. 20 SR13935Z EE MODE(VIDEO) V7's TU MODE (AUDIO) 3-32 3-33...

  • Page 37: A/V Circuit Diagram

    3. A/V CIRCUIT DIAGRAM IC301 Pin 69, 68 are defective. PB and Recording is failed. (IC301 doesn’t operate.) Q305 is defective. IC301 Pin70 is defective. EE, PB Screen doesn’t appear. PB COLOR Signal disappear. D301or IC301 Pin 80 REC is defective. IC301 Pin 84 is defective.

  • Page 38: Hi-Fi Circuit Diagram

    4. Hi-Fi CIRCUIT DIAGRAM IC801 Pins42, 43 aredefective. All Audio is not appear. 44 Pin is defective. Hi-Fi Audio is not appear. '03. 07. 20 SR13934Z V7's 3-36 3-37...

  • Page 39: Scart(Jack) Circuit Diagram

    5. SCART(JACK) CIRCUIT DIAGRAM '03. 07. 20 SR13938Z V7's 3-38 3-39...

  • Page 40: System Circuit Diagram

    6. SYSTEM CIRCUIT DIAGRAM SW is defective. Key service dead. Reset is defective. Set dead. IC504 is defective. CLOCK SETTING will not operate. X501 is defective. µ-COM will not operate. X502 is defective. RC501 is defective. R/C will not operate. VCR will not operate.

  • Page 41: Timer Circuit Diagram

    7. TIMER CIRCUIT DIAGRAM '03. 07. 20 SR14090X V7's 3-42 3-43...

  • Page 42: Waveform & Voltage Sheet

    WAVEFORM & VOLTAGE SHEET _ C301 Osc oscope Wave orm * C501 Waveform Photographs @ @ @ @ @ @ @ @ @ @ h e ? @ @ ? h e ? @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ h e ? @ @ ? h e ? @ ( M e ? I ' @ @ @ e @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ g ? @ @ @ @ @ @ @ h e W 2 @ 6 X ? f W 2 @ 6 X ? e ? @ @ @ f ? @ @ @ e ? W 2 @ @ @ 6 X g ? @ @ ? @ @ f ? W 2 @ @ 6 X ? e ? @ @ ? ? W 2 @ g ? @ H ? W 2 6 K V @ @ 5 e @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ g ? @ @ @ @ @ @ @ h ? W &...

  • Page 43: Circuit Voltage Chart

    • CIRCUIT VOLTAGE CHART MODE MODE MODE MODE MODE MODE MODE PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. I C 2 0 1 4.85 V 4.85 V 4.75 V 1.73 V 1.67 V 2.51 V 1.86 V 0.004 V...
  • Page 44 MODE PIN NO. 5.6 V 5.58 V 5.59 V Q301 COLECTOR 0.02 V 0.01~4.8V 0.011 V 5.6 V 5.58 V 5.59 V BASE 0.01 V 0.013 V 0.79 V Q7S1 EMITER 0.003 V 0.004 V 0.005 V BASE 0.007 V 0.007 V 0.008 V 5.54 V...

  • Page 45: Printed Circuit Diagrams

    PRINTED CIRCUIT DIAGRAMS 1. MAIN P.C.BOARD LOCATION GUIDE 3-50 3-51...

  • Page 46: Smps P.c.board

    2. SMPS P.C.BOARD 4. KEY P.C.BOARD LOCATION GUIDE NOTES) Warning LOCATION GUIDE NOTES) Parts that are shaded are critical NOTES) With respect to risk of fire or NOTES) electricial shock. 3. TIMER P.C.BOARD LOCATION GUIDE 3-52 3-53...

  • Page 48: Dvd Part

    DVD PART ELECTRICAL TROUBLESHOOTING GUIDE 1. System operation flow Power On 1. 8032 initializes SERVO, DSP & RISC registers 2. Write RISC code to SDRAM 3. Reset RISC Show LOGO Tray Closed? Tray Close to Closed position SLED at Inner Side? SLED Moves to Inner Position 1.

  • Page 49: Test & Debug Flow

    2. Test & debug flow TEST Check the AC Vol tage Check the POWER PART Power PCBA (110V or 220V) Switch on the Power PCBA the DC Vol tage outputs OK? Check the POWER PART (5V, 3.3V, 8V, 12V) Make sure the main PCBA don't Is 3.3V and 2.5V DC Check the regulators or diode(D601).
  • Page 50 RESET or Power On. Flash Check connecti on lines between FLASH Memory operates Show LOGO? & MT1379 and the FLASH access time properly? whether is sui table or not. Check connection lines between SDRAM SDRAM(IC502,IC503) & MT1379 and the works properl y? SDRAM is damaged.
  • Page 51 Does the SLED move Check the connection line of Motor Driver STBY to inner side when it is at STBY signal . Pin is High? outter positi on? Check the rel ated circuit of Motor Driver STBY FMSO. Pin is High? Check the amp circuit on SL+ and SL- output motor driver.
  • Page 52 Check the laser power circuit Laser turns on when LD01 or LD02 output on MT1336 and connecting to reading disc? properly? power transistor. (Q204, Q205) Collector Check therel ated ci rcuit on voltage of power laser power transi stor transistor is OK? ( Q204, Q205) Check cable connection between transistor couput and pick-up head.
  • Page 53 Proper Check connections between signals on A, B, C, Focus ON OK? MT1336 and pick-up head. D of MT1336 Check the related circuit Proper FEO signal on MT1336 FEO sugnal . on MT1336? Check FEO connection between MT1336 and MT1379 Check the related Proper FEO signal Track On OK?
  • Page 54 Audio Normal DAC received Check connection between MT1379 Audio output & Audio DAC. (Check VRST#, ACLK, correct data stream? when disc playback? ABCK, ASDAT3) Normal Check the related circuit of Audio DAC Audio DAC. (Check Audio out? (IC401) out Pin 14, 15,18,19) Check Audio filter, amplify, mute circuit.

  • Page 55: Details And Waveforms On System Test And Debugging

    DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING 1. SYSTEM 27MHz CLOCK,RESET,FLASH R/W SIGNAL 1) MT1379 main clock is at 27MHz(X501) 3.8V, 27MHz FIG 1-1 2) MT1379 & MT1336 reset is high active. Power Cord in 5.2VA PWR_CTL(CN505 PIN 7) M_RESET(CN505 PIN 9) URST(IC501 PIN 188) FIG 1-2...
  • Page 56 3) RS232 waveform during procedure(Downloading) TXD(J6 PIN3) RXD(J6 PIN 2) FIG 1-3 4) Flash R/W enable signal during download(Downloading) FRD(IC5A1 PIN 28) FWR(IC5A1 PIN 11) FIG 1-4 3-62...

  • Page 57: Sdram Clock

    2. SDRAM CLOCK 1) MT1379 main clock is at 27MHz(X501) DCLK = 93MHz, Vp-p=2.2, Vmax=2.7V (IC502,IC503 PIN 35) FIG 2-1 3. TRAY OPEN/CLOSE SIGNAL 1) Tray open/close waveform OPEN((CN203 PIN 3) CLOSE(CN203 PIN 2) TROPEN(IC202 PIN 1) TRCLOSE(IC202 PIN 2) FIG 3-1 3-63...
  • Page 58 2) Tray close waveform OPEN((CN203 PIN 3) CLOSE(CN203 PIN 2) TROPEN(IC202 PIN 1) TRCLOSE(IC202 PIN 2) FIG 3-2 3) Tray open waveform OPEN((CN203 PIN 3) CLOSE(CN203 PIN 2) TROPEN(IC202 PIN 1) TRCLOSE(IC202 PIN 2) FIG 3-3 3-64...

  • Page 59: Sled Control Related Signal (No Disc Condition)

    4. SLED CONTROL RELATED SIGNAL (NO DISC CONDITION) FMSO(2.0V/1.4V/1.0V) (IC501 PIN 19) STBY(5V) – (IC201 PIN 50) SL+(4.7V/3.6V/1.9V) (IC202 PIN 12) SL-(5.3V/3.7V/2.5V) (IC202 PIN 13) FIG 4-1 5. LENS CONTROL RELATED SIGNAL(NO DISC CONDITION) FOSO(1.5V/1.4V/1.3V) (IC501 PIN 12) F+(4.0V/3.6V/3.2V) (IC202 PIN 9) F-(4.0V/3.6V/3.2V) (IC202 PIN 8) FIG 5-1...

  • Page 60: Laser Power Control Related Signal(No Disc Condition)

    6. LASER POWER CONTROL RELATED SIGNAL(NO DISC CONDITION) MDI1(0V/180mV) (IC201 PIN 124) LD01(5.0V//3.5V) IC201 PIN 125) LD02(5.0V/3.6V) (IC201 PIN 126) FIG 6-1 7. DISC TYPE JUDGEMENT WAVEFORM F+(IC202 PIN 9) FE(IC201 PIN 18) RFL(IC201 PIN 19) FIG 7-1 (DVD) 3-66...
  • Page 61 F+(IC202 PIN 9) FE(IC201 PIN 18) RFL(IC201 PIN 19) FIG 7-2 (DVD) F+(IC202 PIN 9) FE(IC201 PIN 18) RFL(IC201 PIN 19) FIG 7-3 (CD) 3-67...

  • Page 62: Focus On Waveform

    F+(IC202 PIN 9) FE(IC201 PIN 18) RFL(IC201 PIN 19) FIG 7-4 (CD) 8. FOCUS ON WAVEFORM FE(IC201 PIN 18) FOSO(IC501 PIN12) F+(IC202 PIN 9) F-(IC202 PIN 8) FIG 8-1 (DVD) 3-68...

  • Page 63: Spindle Control Waveform (No Disc Condition)

    FE(IC201 PIN 18) FOSO(IC501 PIN12) F+(IC202 PIN 9) F-(IC202 PIN 8) FIG 8-2 (CD) 9. SPINDLE CONTROL WAVEFORM (NO DISC CONDITION) DMSO(1.4V/1.8V) (IC501 PIN 18) SP-(3.6V/2.4V) (IC202 PIN 10) SP+(3.6V/4.8V) (IC202 PIN 11) FIG 9-1 3-69...

  • Page 64: Tracking Control Related Signal(System Checking)

    10. TRACKING CONTROL RELATED SIGNAL(System checking) TE(IC201 PIN 21) TRSO(IC501 PIN 13) T-(IC202 PIN 7) T+(IC202 PIN 6) FIG 10-1(DVD) TE(IC201 PIN 21) TRSO(IC501 PIN 13) T-(IC202 PIN 7) T+(IC202 PIN 6) FIG 10-2(CD) 3-70...

  • Page 65: Rf Waveform

    11. RF WAVEFORM RFOP(2.3V/1.1V) (IC201 PIN 6) RFON(0.8V/2.0V) (IC201 PIN 7) FIG 11-1 12. MT1379 AUDIO OPTICAL AND COAXIAL OUTPUT (ASPDIF) (IC501 PIN 153) FIG 12-1 3-71...

  • Page 66: Mt1379 Video Output Waveform

    13. MT1379 VIDEO OUTPUT WAVEFORM 1) Full colorbar signal(CVBS) (IC604 PIN 23) FIG 13-1 2) Y (IC604 PIN 21) FIG 13-2 3-72...

  • Page 67: Audio Output From Audio Dac

    3) C (IC604 PIN 26) FIG 13-3 14. AUDIO OUTPUT FROM AUDIO DAC 1) Audio L/R (JK601 PIN 4,5) FIG 14-1 3-73...
  • Page 68 2) Audio related Signal ASDATA3 ASDAT3(IC501 PIN 157) ABCK(IC501 PIN 148) ALRCK(IC501 PIN 149) FIG 14-2 3-74...

  • Page 69: Block Diagrams

    BLOCK DIAGRAMS 1. Overall Block Diagram MA11,BA1 DQM[2:3] MUTE DQ[16:31] ASPDIF Y[1:6] CVBS ASPECT DQM[0:1] DQ[00:15] URST F+,F-,T+,T- SP+,SP- SL+,SL- LOAD+,LOAD- DECK MECHANISM COMBI SCART VC6'S 3-75...

  • Page 70: Servo Block Diagram

    2. SERVO Block Diagram COMBI SCART VC6'S 3-76...

  • Page 71: Mpeg & Memory Block Diagram

    3. MPEG & MEMORY Block Diagram COMBI SCART VC6'S 3-77...

  • Page 72: Video & Audio Block Diagram

    4. VIDEO & AUDIO Block Diagram COMBI SCART VC6'S 3-78...

  • Page 74: Circuit Diagrams

    CIRCUIT DIAGRAMS 1. SYSTEM CIRCUIT DIAGRAM No Power on Video signal not appeared System not working or screen is abnormal Program download fail COMBI SCART MTK Digitron all not display Video signal Y '03. 3. 25 SR17444A System not working Video signal Color 3-79 3-80...

  • Page 75: Rf & Dsp Servo Circuit Diagram

    2. RF & DSP SERVO CIRCUIT DIAGRAM CD/DVD LD will not on COMBI SCART MTK '03. 3. 25 SR17445A 3-81 3-82...

  • Page 76: Audio Circuit Diagram

    3. AUDIO CIRCUIT DIAGRAM COMBI SCART MTK '03. 3. 25 SR17447A 3-83 3-84...

  • Page 77: Av/Jack Circuit Diagram

    4. AV/JACK CIRCUIT DIAGRAM COMBI SCART MTK '03. 3. 25 SR17446A 3-85 3-86...

  • Page 78: Circuit Voltage Chart

    • CIRCUIT VOLTAGE CHART IC201 IC202 IC501 IC502 IC505 IC510 IC5A1 IC401 IC402 IC5C1 IC201 IC202 IC501 IC502 IC505 IC510 IC5A1 IC401 IC402 IC5C1 (MT1336E) (MOTOR) (MT1379) (SDRAM) (EEPROM) (BUFFER) (FLASH) (CS4391) (AMP) (MM1623XFBE) (MT1336E) (MOTOR) (MT1379) (SDRAM) (EEPROM) (BUFFER) (FLASH) (CS4391) (AMP)
  • Page 79 Q201 Q202 Q203 Q204 IC201 IC202 IC501 IC502 IC505 IC510 IC5A1 IC401 IC402 IC5C1 (MT1336E) (MOTOR) (MT1379) (SDRAM) (EEPROM) (BUFFER) (FLASH) (CS4391) (AMP) (MM1623XFBE) STOP PLAY STOP PLAY STOP PLAY STOP PLAY PIN STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY 5.14 4.34...

  • Page 80: Printed Circuit Diagrams

    PRINTED CIRCUIT DIAGRAMS 1. MAIN P.C.BOARD LOCATION GUIDE 3-91 3-92...
  • Page 82 SECTION 4 MECHANISM OF VCR PART CONTENTS DECK MECHANISM PARTS DECK MECHANISM ADJUSTMENT LOCATIONS • Tools and Fixtures for Service ....4-12 1. Mechanism Alignment Position Check..4-13 • Top View............4-1 2. Preparation for Adjustment......4-14 • Bottom View ..........4-1 3. Checking Torque ........4-14 4.
  • Page 83 DECK MECHANISM PARTS LOCATIONS • Top View Procedure Fig- Part Fixing Type Starting 1 Drum Assembly 3 Screw 2 Plate Top 2 Hook 3 Holder Assembly CST Chassis Hole 4 Opener Door Chassis Hole 5 Bracket Assembly 3 Hook L/D Motor 2,3,4 6 Gear Assembly Rack F/L 1 Hook, Chassis Hole A-2...
  • Page 84 DECK MECHANISM DISASSEMBLY Stator (S2) (S2) (S3) Drum Motor (S3) Rotor Drum Sub Assembly (Fig. A-1-1) Drum FPC Carbon Brush (S1) (S1) (S1) Holder FPC Fig. A-1 (Fig. B-1) 1. Drum Assembly (Fig. A-1-1) 1) Unplug the Drum FPC Connector. 2) Remove three Screws(S1) on bottom side and separate the Drum assembly.
  • Page 85 DECK MECHANISM DISASSEMBLY (Fig. A-2-1) Plate Top (B') (Fig. A-2-2) Holder Assembly CST (Fig. A-2-6) Arm Assembly F/L (C1) (Fig. A-2-7) Lever Assembly S/W (H8) Bracket Assembly L/D Motor Spring Lever S/W (Fig. A-2-4) (C') (E') Opener Door (Fig. A-2-3) (H6) Chassis Gear Assembly Rack F/L...
  • Page 86 DECK MECHANISM DISASSEMBLY 2. Plate Top (Fig. A-2-1) 2) Unhook three Hooks(H3, H4, H5) on bottom side of the Chassis, lift up the Bracket Assembly L/M and disassem- 1) Pull the (B) portion of the Plate Top back in direction of ble the Bracket Assembly L/D Motor.
  • Page 87 DECK MECHANISM DISASSEMBLY Arm Assembly Cleaner (Fig. A-3-1) (S4) Base Assembly A/C Head (Fig. A-3-3) Head F/E (Fig. A-3-2) Chassis Fig. A-3 9. Arm Assembly Cleaner (Fig. A-3-1) 11. Base Assembly A/C Head (Fig. A-3-3) 1) Breakaway the (A) portion as Fig. A-3-1 from the 1) Remove the Screw(S4) and lift the Base Assembly A/C embossing of the Chassis, turn the Arm assembly Head up.
  • Page 88 DECK MECHANISM DISASSEMBLY Arm Assembly Tension (Fig. A-4-3) (H11) Spring TB Brake Assembly T (Fig. A-4-1) Spring Tension Reel S Reel T (Fig. A-4-4) (Fig. A-4-4) Spring RS Brake Assembly RS (Fig. A-4-2) (H12) (H9) (H10) Base Tension Chassis Fig. A-4 12.
  • Page 89 DECK MECHANISM DISASSEMBLY Opener Lid (Fig. A-5-2) Assembly Pinch (Fig. A-5-3) Base Assembly P4 Lever T/up (H13) (Fig. A-5-1) (Fig. A-5-4) (H13) Arm T/up (Fig. A-5-5) Chassis Fig. A-5 16. Base Assembly P4 (Fig. A-5-1) NOTE 1) Breakaway the (A) portion of the Base Assembly P4 from When reassembling, confirm the (C) portion of the Arm the embossing of the Chassis.
  • Page 90 DECK MECHANISM DISASSEMBLY Belt Capstan (Fig. A-6-1) Motor Capstan (Fig. A-6-2) Washer(W1) Clutch Assembly D35 (Fig. A-6-4) (L1) (L1) Brake Assembly Capstan (Fig. A-6-5) Lever F/R (Fig. A-6-3) (L2) Chassis (S5) Fig. A-6 20. Belt Capstan (Fig. A-6-1)/ 22. Clutch Assembly D35 (Fig. A-6-4) Motor Capstan (Fig.
  • Page 91 DECK MECHANISM DISASSEMBLY (H14) Gear Cam Hole(B) Gear Cam (Fig. A-7-2) Gear Drive Hole(A) Washer (W2) Gear Sector (Fig. A-7-3) Plate Slider Gear Drive (Fig. A-7-4) (Fig. A-7-1) Lever Tension (Fig. A-7-5) Lever spring (L3) (Fig. A-7-6) Gear Drive Hole(C) Base Loading (H15) (H16)
  • Page 92 DECK MECHANISM DISASSEMBLY Gear Assembly P2 Hole Gear Assembly P3 Hole Gear Assembly P3 (Fig. A-8-2) Gear Sector Hole(A) Lever Spring Boss Gear Assembly P2 Plate Slider Hole(B) (Fig. A-8-1) Chassis Base Assembly P3 (Fig. A-8-4) Base Assembly P2 (Fig. A-8-3) Fig.
  • Page 93 DECK MECHANISM DISASSEMBLY (S7) Base Tension Base Loading (Fig. A-9-2) Arm Assembly Idler (Fig. A-9-1) (Fig. A-9-3) Chassis Fig. A-9 31. Base Loading (Fig. A-9-1) 33. Arm Assembly Idler (Fig. A-9-3) 1) Remove the Screw(S7). 1) Make narrower the two parts, (B) and (C), as Fig. A-9-3. 2) Lift the Base Loading up.
  • Page 94 DECK MECHANISM ADJUSTMENT • Tools and Fixfures for Service 1. Cassette Torque Meter 2. Alignment Tape 3. Torque Gauge SRK-VHT-303(Not SVC part) Parts No NTSC: DTN-001 600g.Cm ATG Parts No: D00-D006 PAL:DTN-0002 Parts No:D00-D002 4. Torque Gauge Adaptor 5. Post Height Adjusting Driver 6.
  • Page 95 DECK MECHANISM ADJUSTMENT 1. Mechanism Alignment Position Check Purpose:To determine if the Mechanism is in the correct position, when a Tape is ejected. Test Conditions (Mechanism Test Equipment/ Fixture Check Point Condition) • Mechanism and Mode Switch Position • Blank tape •...
  • Page 96 DECK MECHANISM ADJUSTMENT 2. Preparation for Adjustment (To set the cassette without tape. Cover the holes of the End Sensors at the both sides of Deck Mechanism of the loading state the Chassis to prevent a light leak. without inserting a cassette tape). Then the Deck Mechanism drives to the Stop Mode.
  • Page 97 DECK MECHANISM ADJUSTMENT 4.Guide Roller Height Adjustment Purpose: To regulate the height of the tape so that the bottom of the tape runs along the tape guide line on the Lower Drum. 4-1. Preliminary Adjustment Test Equipment/ Fixture Test Conditions (Mechanism Condition) Adjustment Point •...
  • Page 98 DECK MECHANISM ADJUSTMENT 5. Audio/Control (A/C) Head Adjustment Purpose: To insure that the tape passes accurately over the Audio and Control Tracks in exact alignment of the both Record and Playback Modes. 5-1. Preliminary Adjustment (Height and Tilt Adjustment) Perform the Preliminary Adjustment, when there is no Audio Output Signal with the Alignment Tape. Test Equipment/ Fixture Test Conditions (Mechanism Condition) Adjustment Point...
  • Page 99 DECK MECHANISM ADJUSTMENT 5-2. Confirm that the tape passes smoothly (2) If folding or curling is observed at the top of it then slowly turn the Tilt Adjustment Screw(C) in the between the Take-up Guide and Pinch counterclockwise direction. Roller(using a mirror or the naked eye). 1) After completing Step 5-1.(Preliminary Adjustment), check NOTE: that the tape passes around the Take-up Guide and Pinch...
  • Page 100 DECK MECHANISM ADJUSTMENT 7. Adjustment after Replacing Drum Assembly (Video Heads) Purpose: To correct for shift in the Roller Guide and X value after replacing the Drum. Test Conditions Test Equipment/ Fixture Connection Point Adjustment Points (Mechanism Condition) • CH-1: PB RF Envelope •...
  • Page 101 MAINTENANCE/INSPECTION PROCEDURE 1. Check before starting repairs The following faults can be remedied by cleaning and oil- ing. Check the needed lubrication and the conditions of cleanliness in the unit. Check with the customer to find out how often the unit is used, and then determine that the unit is ready for inspec- tion and maintenance.
  • Page 102 MAINTENANCE/INSPECTION PROCEDURE 2. Required Maintenance 4. Supplies Required for Inspection and Maintence The recording density of a VCR(VCP) is much higher than that of an audio tape recorder. VCR(VCP) components must (1) Grease : Kanto G-311G (Blue) or equivalent be very precise, at tolerances of 1/1000mm, to ensure com- (2) Isopropyl Alcohol or equivalent patibility with the other VCRs.
  • Page 103 MAINTENANCE/INSPECTION PROCEDURE 5-2) Greasing (2) Periodic greasing Grease specified locations every 5,000 hours. (1) Greasing guidelines 1) Loading Path Inside & Top side 6) Plate Slider Guide Sections Apply grease, with a cleaning patch. Do not use exces- 2) Base Assembly P2,P3 stopper 7) Plate Slider Guide Sections sive grease.
  • Page 104 MAINTENANCE/INSPECTION PROCEDURE Lever, F/R, Base, Tension GEAR AY, P2 & P3 Boss Lever, F/R Base, Tension Clutch (G-754. Yellow) Arm Tension Guide Hole 4-22...
  • Page 105 MECHANISM TROUBLESHOOTING GUIDE 1.Deck Mechanism Auto REW doesn't work. Is the output of END sensor of supply side "H"? “H”: more than 3.5V “L”: less than 0.7V~1V Is the Vcc. voltage of End Check the syscon power. sensor 5V? Replace the End sensor. Is the voltage across IR LED Replace the IR LED.
  • Page 106 MECHANISM TROUBLESHOOTING GUIDE AUTO STOP. (PLAY/CUE/REV) Check alignment positions (page 4-13). In Play/Cue/Rev, Is the Pinch Roller in contact with the Is the output of DFG, DPG OK? Replace the Drum Motor. Capstan Shaft? Are there T/up and Supply Reel Check the Servo, Syscon.
  • Page 107 MECHANISM TROUBLESHOOTING GUIDE In PB mode Tape Presence not sensed. Is the Pinch Roller attached Check Alignment positions to the Capstan Motor Shaft? (page 4-13). Does the T/Up Reel turn? Is the Belt ok? Replace the Belt. Check the Clutch and Idler Does the Capstan Motor turn? Assembly.
  • Page 108 MECHANISM TROUBLESHOOTING GUIDE 2. Front Loading Mechanism Cassette cannot be inserted. Does the Lever Assembly Is the Lever Assembly Switch Replace or add the Lever Switch work? Spring damaged or omitted? Assembly Switch Spring. Does the CST IN Switch work Replace the CST IN Switch.
  • Page 109 MECHANISM TROUBLESHOOTING GUIDE Cassette does not load. Does the cassette insert? Does the Opener Lid work? Does the Gear Assembly Rack F/L Replace the Opener Lid. work? Replace the Gear Rack F/L. Does the Opener Door work? Check the opener Door assembled Does the Arm Assembly F/L work? correctly.
  • Page 110 EXPLODED VIEWS 1. Front Loading Mechanism Section 4-28...
  • Page 111 EXPLODED VIEWS 2. Moving Mechanism Section(1) OPTIONAL PART 4-29...
  • Page 112 EXPLODED VIEWS 3. Moving Mechanism Section(2) OPTIONAL PART 4-30...
  • Page 113 MEMO...
  • Page 114 SECTION 5 MECHANISM OF DVD PART CONTENTS 5. Frame Assembly Up/Down ....5-4 DECK MECHANISM PARTS 6. Belt Loading........5-4 LOCATIONS 7. Gear Pulley ........5-4 8. Gear Loading ........5-4 • Top View..........5-1 9. Guide Up/Down.........5-4 • Top View(without Tray Disc) ....5-1 • Bottom View ...........5-1 10.
  • Page 115 DECK MECHANISM PARTS LOCATION • Top View (With Tray) Procedure Disass Fig- Parts Fixing Type embly Starting No. Holder 2 Screws, Clamp 2 Locking Tabs Clamp Assembly Disc 1, 2 Plate Clamp 1, 2, 3 Magnet Clamp 1, 2, 3, 4 Clamp Upper Tray Disc 1, 6...
  • Page 116 DECK MECHANISM DISASSEMBLY Fig. 5-1 Fig. 5-2 1. Holder Clamp (Fig. 5-1) 2. Tray Disc (Fig. 5-2) 1) Release 2 Screws(S1). 1) Insert and push a Driver in the emergency eject 2) Unhook 2 Locking Tabs(L1). hole(A) at the right side, or put the Driver on the 3) Lift up the Holder Clamp and then separate it from the Lever(B) of the Gear Emergency and pull the Lever(B) Base Main.
  • Page 117 DECK MECHANISM DISASSEMBLY Fig. 5-3 3. Base Assembly Sled (Fig. 5-3) 3-3. Gear Assembly Rack 1) Release the Scerw(S3) 1) Release 4 Screw(S2). 2) Disconnect the FFC Connector(C1) 4. Rubber Rear (Fig. 5-3) 3-1. Gear Assembly Feed 3-2. Gear Middle...
  • Page 118 DECK MECHANISM DISASSEMBLY Fig. 5-4 5. Frame Assembly Up/Down (Fig. 5-4) 8. Gear Loading (Fig. 5-4) 9. Guide Up/Down (Fig. 5-4) Note 1) Move the Guide Up/Down in direction of arrow(A) as Put the Base Main face down(Bottom Side) Fig.(A) 1) Release the Screw(S4) 2) Push the Locking Tab(L5) down and then lift up the 2) Unlock the Locking Tab(L3) in direction of arrow and...
  • Page 120 EXPLODED VIEWS 1. Deck Mechanism Exploded View 024A 024B 024A 011A 015A 015B 015C...
  • Page 122 "IC5A1A" NOTES) electricial shock. SECTION 6 REPLACEMENT PARTS LIST MODEL : DVS7905/DVS7905S/DVS7905B NSP : Not avallable as service parts. RUN DATE :15-SEPTEMBER-03 S AL LOCA. NO. LG PART NO. DESCRIPTION SPECIFICATION REMARKS *** INDIVIDUAL PARTS *** A(DVS7905/DVS7905S), F(DVS7905B) 3110R-V006A/F CASE...
  • Page 123 S AL LOCA. NO. LG PART NO. DESCRIPTION SPECIFICATION REMARKS 4974R-0023A GUIDE UP/DOWN 3040R-M001A BASE MAIN MOLD 4680R-C011A MOTOR(MECH) SPINDLE JCL9B68 SANKYO FOR COM 4681R-0034C MOTOR ASSEMBLY DECK/MECHA FEED DP-7C(DI) 4470R-0131A GEAR PINION DP7C 024A 5006R-0044A SKEW-T DP7C 024B 5006R-0043A...
  • Page 124 S AL LOCA. NO. LG PART NO. DESCRIPTION SPECIFICATION REMARKS C270 0CH1104K942 CAPACITOR,CHIP[CERAMIC M/L HD 0.1UF 50V Z Y5V(F) 1508 R/TP C271 0CH4391K412 CAPACITOR,CHIP[CERAMIC M/L TC 390PF 50V J NP0 1508 R/TP C272 0CH4391K412 CAPACITOR,CHIP[CERAMIC M/L TC 390PF 50V J NP0 1508 R/TP...
  • Page 125 S AL LOCA. NO. LG PART NO. DESCRIPTION SPECIFICATION REMARKS C517 0CH1104K942 CAPACITOR,CHIP[CERAMIC M/L HD 0.1UF 50V Z Y5V(F) 1508 R/TP C518 0CH1104K942 CAPACITOR,CHIP[CERAMIC M/L HD 0.1UF 50V Z Y5V(F) 1508 R/TP C519 0CH1104K942 CAPACITOR,CHIP[CERAMIC M/L HD 0.1UF 50V Z Y5V(F) 1508 R/TP...
  • Page 126 S AL LOCA. NO. LG PART NO. DESCRIPTION SPECIFICATION REMARKS C5A2 0CH1104K942 CAPACITOR,CHIP[CERAMIC M/L HD 0.1UF 50V Z Y5V(F) 1508 R/TP C5C1 0CE4764F638 CAPACITOR,ELECTROLYTIC 47M SRA/SS 16V M FM5 TP(5) C5C2 0CE1054K638 CAPACITOR,ELECTROLYTIC 1.0M SRA/SS50V M FM5 TP(5) C5C4 0CE1054K638 CAPACITOR,ELECTROLYTIC 1.0M SRA/SS50V M FM5 TP(5)
  • Page 127 S AL LOCA. NO. LG PART NO. DESCRIPTION SPECIFICATION REMARKS Q202 0TRRH80042A TRANSISTOR,BIPOLARS 2SK3018 T106 ROHM KOREA R/TP U Q203 0TRRH80042A TRANSISTOR,BIPOLARS 2SK3018 T106 ROHM KOREA R/TP U Q204 0TR103709BB TRANSISTOR,BIPOLARS 2SA1037K-Q CHIP TP ROHM - - Q205 0TR103709BB TRANSISTOR,BIPOLARS...
  • Page 128 S AL LOCA. NO. LG PART NO. DESCRIPTION SPECIFICATION REMARKS R409 0RH7501C622 RESISTOR,METAL GLAZED(CHIP) 7.5K OHM 1 / 16 W 1608 5.00% D R410 0RH7501C622 RESISTOR,METAL GLAZED(CHIP) 7.5K OHM 1 / 16 W 1608 5.00% D R411 0RH7501C622 RESISTOR,METAL GLAZED(CHIP) 7.5K OHM 1 / 16 W 1608 5.00% D...
  • Page 129 S AL LOCA. NO. LG PART NO. DESCRIPTION SPECIFICATION REMARKS R581 0RH1001C622 RESISTOR,METAL GLAZED(CHIP) 1K OHM 1 / 16 W 1608 5.00% D R584 0RH0222C622 RESISTOR,METAL GLAZED(CHIP) 22 OHM 1 / 16 W 1608 5.00% D R585 0RH1100C622 RESISTOR,METAL GLAZED(CHIP) 110 OHM 1 / 16 W 1608 5.00% D...
  • Page 130 S AL LOCA. NO. LG PART NO. DESCRIPTION SPECIFICATION REMARKS C327 0CE1054K638 CAPACITOR,ELECTROLYTIC 1.0M SRA/SS50V M FM5 TP(5) C328 0CH1103K512 CAPA,CHIP CERAMIC M/L H.D F/S 0.0100UF 50V K B 1608 R/TP C329 0CH1103K512 CAPA,CHIP CERAMIC M/L H.D F/S 0.0100UF 50V K B 1608 R/TP...
  • Page 131 S AL LOCA. NO. LG PART NO. DESCRIPTION SPECIFICATION REMARKS C520 0CH1102K512 CAPACITOR,FIXED CERAMIC(TEMP.C 1000PF 50V 10% B(5YP) 1608 R/T C521 0CH1102K512 CAPACITOR,FIXED CERAMIC(TEMP.C 1000PF 50V 10% B(5YP) 1608 R/T C523 0CE2254K638 CAPACITOR,FIXED ELECTROLYTIC 2.2UF SRA,SS 50V 20% FM5 TP 5...
  • Page 132 S AL LOCA. NO. LG PART NO. DESCRIPTION SPECIFICATION REMARKS C730 0CH4150K412 CAPA,CHIP CERAMIC M/L T.C F/S 15P 50V J COG 1.6X0.8 R/TP C731 0CH4090K112 CAPACITOR,FIXED CERAMIC(High d 9PF 50V 0.5 pF NP0 1608 R/TP C732 0CE1064F638 CAPACITOR,ELECTROLYTIC 10M SRA 16V M FM5 TP(5)
  • Page 133 S AL LOCA. NO. LG PART NO. DESCRIPTION SPECIFICATION REMARKS C889 0CH1104K942 CAPACITOR,CHIP[CERAMIC M/L HD 0.1UF 50V Z Y5V(F) 1508 R/TP C890 0CH1104K942 CAPACITOR,CHIP[CERAMIC M/L HD 0.1UF 50V Z Y5V(F) 1508 R/TP C891 0CH1104K942 CAPACITOR,CHIP[CERAMIC M/L HD 0.1UF 50V Z Y5V(F) 1508 R/TP...
  • Page 134 S AL LOCA. NO. LG PART NO. DESCRIPTION SPECIFICATION REMARKS L306 0LR1000K035 INDUCTOR RADIAL LEAD 100M K 6X6 L5 TP L307 0LR0102J0N5 INDUCTOR,RADIAL LEAD 10UH 5% TP 3X5 TR5 L307 GLR0102K0P5 INDUCTOR,RADIAL LEAD LF7.5N OEL 10UH 10% TP 4.8X4.0 L307...
  • Page 135 S AL LOCA. NO. LG PART NO. DESCRIPTION SPECIFICATION REMARKS Q803 0TR387509AC TRANSISTOR CHIP KTC3875S-GR-T1(ALG) KEC Q804 0TR150409AC TRANSISTOR KTA1504-GR-T1(ASG) CHIP KEC Q901 0TR387509AC TRANSISTOR CHIP KTC3875S-GR-T1(ALG) KEC Q902 0TR387509AC TRANSISTOR CHIP KTC3875S-GR-T1(ALG) KEC Q903 0TR387509AC TRANSISTOR CHIP KTC3875S-GR-T1(ALG) KEC...
  • Page 136 S AL LOCA. NO. LG PART NO. DESCRIPTION SPECIFICATION REMARKS R503 0RH4701C622 RESISTOR,METAL GLAZED(CHIP) 4.7K OHM 1 / 16 W 1608 5.00% D R504 0RH1001C622 RESISTOR,METAL GLAZED(CHIP) 1K OHM 1 / 16 W 1608 5.00% D R505 0RH1001C622 RESISTOR,METAL GLAZED(CHIP) 1K OHM 1 / 16 W 1608 5.00% D...
  • Page 137 S AL LOCA. NO. LG PART NO. DESCRIPTION SPECIFICATION REMARKS R589 0RH1004C622 RESISTOR,METAL GLAZED(CHIP) 1M OHM 1 / 16 W 1608 5.00% D R591 0RH1003C622 RESISTOR,METAL GLAZED(CHIP) 100K OHM 1 / 16 W 1608 5.00% D R5A2 0RH1002C622 RESISTOR,METAL GLAZED(CHIP) 10K OHM 1 / 16 W 1608 5.00% D...
  • Page 138 S AL LOCA. NO. LG PART NO. DESCRIPTION SPECIFICATION REMARKS R811 0RH1000C622 RESISTOR,METAL GLAZED(CHIP) 100 OHM 1 / 16 W 1608 5.00% D R812 0RH1001C622 RESISTOR,METAL GLAZED(CHIP) 1K OHM 1 / 16 W 1608 5.00% D R821 0RH2201C622 RESISTOR,METAL GLAZED(CHIP) 2.2K OHM 1 / 16 W 1608 5.00% D...
  • Page 139 S AL LOCA. NO. LG PART NO. DESCRIPTION SPECIFICATION REMARKS X301 6202R2443AC RESONATOR,CRYSTAL HC49U BUBANG 4-433709MHZ 15P X301 6202R2443AG RESONATOR,CRYSTAL HC49U SSANGTAE 4-433709MHZ 1 X501 6212AA2100C RESONATOR,CRYSTAL HC-49S BUBANG 10MHZ +/- 30 PPM X501 6202R31001F RESONATOR,CRYSTAL HC-49S KEUMSEOK 10-0000MHZ 30P...
  • Page 140 S AL LOCA. NO. LG PART NO. DESCRIPTION SPECIFICATION REMARKS F102 GIRH200000B IC,ROHM ICP-N20 T104 TP IC DETACT FH01 586-008B HOLDER FUSE CLIP TP SINSUNG FH02 586-008B HOLDER FUSE CLIP TP SINSUNG IC101 4811R-0014B BRACKET ASSEMBLY VCR SANKEN 6351(R:6352) BRACKE...
  • Page 141 S AL LOCA. NO. LG PART NO. DESCRIPTION SPECIFICATION REMARKS T101 6170RNGW12F TRANSFORMER,SMPS[COIL] EER3534, 580UH SAMWHA/FEELUX C V101 656-004C VARISTOR,DRAWING SVC681D-10A SAMHWA 4.O CUT ZD101 0DZ330009BF DIODE,ZENER GDZJ3.3B TP GRANDE DO34 0.5W 3 ZD101 0DZ332609FA DIODE,ZENER UZ-3.3BSB 26MM TP PYUNG CHANG...
  • Page 142 S AL LOCA. NO. LG PART NO. DESCRIPTION SPECIFICATION REMARKS SW601 556-282C SWITCH,TACT SKQNQED ALPS DC 12 V 50 MA TA SW601 556-219B SWITCH,TACT THVV502GAA POSTECH DC 12 V 5- SW602 556-282C SWITCH,TACT SKQNQED ALPS DC 12 V 50 MA TA...
  • Page 143 S AL LOCA. NO. LG PART NO. DESCRIPTION SPECIFICATION REMARKS 4970R-0128A SPRING COIL D35 (TB) 4421R-0006A BRAKE ASSY 6520D00003A HEAD(CIRC) VAA00000338A TDK FE HEAD FOR S 6520C00002A HEAD(CIRC) D35 ACE ALPS AUDIO CTL ERASE 3040R-V001A BASE LOADING(S) MOLD 4261R-0024A ARM ASSEMBLY...
  • Page 144 S AL LOCA. NO. LG PART NO. DESCRIPTION SPECIFICATION REMARKS 1WZZR-0004D WASHER STOPPER 1WZZR-0004A WASHER STOPPER 6-23...

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