Related Manuals for LG DK763X
Summary of Contents for LG DK763X
- Page 1 DVD VIDEO PLAYER SERVICE MANUAL MODEL : DK673X(DV133KEM) CAUTION BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS” IN THIS MANUAL. P/NO : 3829RHP051K JANUARY,2006...
- Page 2 CONTENTS SECTION 1 ..SUMMARY SECTION 2 ..CABINET & MAIN CHASSIS SECTION 3 ..ELECTRICAL SECTION 4 ..REPLACEMENT PARTS LIST...
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Page 3: Table Of Contents
SECTION 1 SUMMARY CONTENTS PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS ......1-3 SERVICING PRECAUTIONS ....................1-4 • General Servicing Precautions • Insulation Checking Prodedure • Electrostatically Sensitive Devices SERVICE INFORMATION FOR EEPROM ................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 DVD covered by this service Electrostatically Sensitive (ES) Devices data and its supplements and addends, read and follow the Some semiconductor (solid state) devices can be damaged SAFETY PRECAUTIONS. NOTE : if unforeseen circum- easily by static electricity. -
Page 6: Service Information For Eeprom
SERVICE INFORMATION FOR EEPROM POWER ON DETECT NEW EEPROM DVD LOGO Status (NO Disk status) (OPTION EDIT SCREEN) MODEL DK673X NAME Remotecontrol OPT 1 52(R) Pause key-->1-->4-->7-->2 in order. OPT 2 55(U) OPT 3 00(RUS) OPT 4 OPT 5 Press number 0~9, Press charater OPT 6 OPT 7 A~F (1~6 for a while) -
Page 7: Specifications
SPECIFICATIONS • GENERAL Power requirements: AC 200-240 V , 50/60 Hz Power consumption: Dimensions (Approx.): 8, 7, 6 TOOL : 430 x 35 x 242 mm (17 x 1.4 x 9.5 inches) 4, 3 TOOL : 360 x 35 x 242 mm (14.2 x 1.4 x 9.5 inches) (W x H x D) without foot Weight (Approx.): 8, 7, 6 TOOL : 1.9 kg (4.2 lbs) - Page 8 SECTION 2 CABINET & MAIN CHASSIS CONTENTS EXPLODED VIEWS ........................2-2 1. Cabinet and Main Frame Section ...................2-2 2. Deck Mechanism Section(DP-10) ...................2-3 3. Packing Accessory Section ....................2-4...
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Page 9: Exploded Views
EXPLODED VIEWS 1. Cabinet and Main Frame Section NOTES) THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICE LITERATURE. KARAOKE MODEL ONLY KARAOKE MODEL ONLY... -
Page 10: Deck Mechanism Section(Dp-10)
2. Deck Mechanism Section(DP-10) -
Page 11: Packing Accessory Section
3. Packing Accessory Section RF CABLE 810 CABLE SET ASS’Y PLUG ASS’Y 1WAY(YELLOW) PLUG ASS’Y 2WAY BATTERY PLUG ASS’Y 1WAY(BLACK) REMOCON OWNER’S MANUAL PACKING SHEET PACKING PACKING 832 DISC BOX CARTON OPTIONAL PARTS... - Page 12 SECTION 3 ELECTRICAL CONTENTS ELECTRICAL TROUBLESHOOTING GUIDE ..............3-2 1. Power check flow........................3-2 2. System operation flow ......................3-3 3. Test & debug flow ........................3-4 4. KARAOKE Flow (KARAOKE MODEL ONLY) ...............3-10 DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING ....3-11 1. SYSTEM 27MHz CLOCK, RESET, FLASH R/W SIGNAL.............3-11 2.
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Page 13: Electrical Troubleshooting Guide
ELECTRICAL TROUBLESHOOTING GUIDE 1. Power check flow No 3.3VA No REG 5.0V Is the FR101 Replace the FR101 Is the Vcc(=5.6V) sup- Check or Replace Normal? (Use the same ICW) plied to Q126 Collector? the D123 Is the D105/ D106/ Replace the D105/ Is the Vcc(=12V) sup- Check the ‘PWR CTL... -
Page 14: System Operation Flow
2. 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 15: Test & Debug Flow
3. Test & debug flow TEST Check the AC Voltage Replace power PCBA or AC transformer. Power PCBA(110V or 220V) Switch on the Power PCBA Is the DC Voltage outputs OK? Repair or Replace Power PCBA (5V, 3.3V, 12V,5.6V MOTOR) Make sure the main PCBA don't short on VCCs and switch it on. - Page 16 Check connection lines between Flash Memory operates Show LOGO? FLASH & MT1389E and the FLASH properly? access time whether is suitable or not. Check connection lines SDRAM works properly? between SDRAM & MT1389E and the SDRAM is damaged. MT1389E VIDEO outputs Check the related circuit of properly? MT1389E.
- Page 17 Does the SLED move to Motor Driver STBY Pin is Check the connection line of inner side when it is at outter High? STBY signal. position? Is FMSO DC Level higher Check the related circuit of than 1.4V? FMSO. SL+ and SL- output Check the amp circuit on properly? motor driver.
- Page 18 Check the laser power circuit Laser turns on when LD01 or LD02 output on MT1389E and connecting reading disc? properly? to power transistor. Collector voltage of Check the related circuit on power transistor is OK? laser power transistor Check cable connection between transistor ouput and pick-up head.
- Page 19 Proper signals on A, B, C, Check connections between Focus ON OK? MT1389E and pick-up head. D of MT1389E Check the FOSO Check FEO signal on connection on MT1389E MT1389E and motor driver. Check FOSO signal on MT1389E Normal TEO Signal on Check the related circuit on Track On OK? MT1389E?
- Page 20 Normal Audio output Audio AMP IC received Check connection between when disc playback? correct data stream? MT1389E & Audio AMP IC. Check the related circuit of Normal Audio AMP IC out? Audio AMP IC. Check Audio filter, mute circuit. Communications between Normal IR.VFD &...
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Page 21: Karaoke Flow (Karaoke Model Only)
4. KARAOKE Flow (KARAOKE MODEL ONLY) Start Insert the Mic jack Is the Mic signal at the IC801 pin3. Is the Mic signal at the IC801 Pin 2. Replace IC801. Does the Mic Check pattern. signal input the IC601 Pin224. Is the Mic signal at the IC801 Pins3, 7 normal? Replace the mic jack... -
Page 22: 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) MT1389E main clock is at 27MHz(X601) 1.0V, 27MHz FIG 1-1 2) MT1389 reset is low active. 3.3VA PWR_CTL RESET Reset Time FIG 1-2 3-11... - Page 23 3) RS232 waveform during procedure(Downloading) FIG 1-3 4) Flash R/W enable signal during download(Downloading) FIG 1-4 3-12...
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Page 24: Sdram Clock
2. SDRAM CLOCK DCLK = 128MHz, Vp-p=2.2, Vmax=2.7V FIG 2-1 3. TRAY OPEN/CLOSE SIGNAL TRIN TROUT TRCLOSE TROPEN FIG 3-1 3-13... -
Page 25: Sled Control Related Signal(No Disc Condition)
4. SLED CONTROL RELATED SIGNAL (NO DISC CONDITION) FMSO(1.9V/1.4V/1.1V) STBY(3.3V) SL+(4.2V/2.8V/1.2V) SL-(4.2V/2.8V/1.5V) FIG 4-1 5. LENS CONTROL RELATED SIGNAL(NO DISC CONDITION) FOSO(1.5V/1.4V/1.3V) F+(3.2V/2.7V/2.2V) F-(3.2V/2.7V/2.2V) FIG 5-1 3-14... -
Page 26: Laser Power Control Related Signal(No Disc Condition)
6. LASER POWER CONTROL RELATED SIGNAL(NO DISC CONDITION) DCLK = 128MHz, Vp-p=2.2, Vmax=2.7V MDI1(0V/180mV) LD01(3.3V//2.3V) LD02(3.3V/2.3V) FIG 7-2 (DVD) 7. DISC TYPE JUDGEMENT WAVEFORM FIG 7-1 3-15... - Page 27 FIG 7-2 (DVD) FIG 7-3 (CD) 3-16...
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Page 28: Focus On Waveform
FIG 7-4 (CD) 8. FOCUS ON WAVEFORM FOSO FIG 8-1 (DVD) 3-17... -
Page 29: Spindle Control Waveform
FOSO FIG 8-2 (CD) 9) SPINDLE CONTROL WAVEFORM (NO DISC CONDITION) DMSO(1.4V/1.8V) SP-(3.6V/2.4V) SP+(3.6V/4.8V) FIG 9-1 3-18... -
Page 30: Tracking Control Related Signal(System Checking)
10. TRACKING CONTROL RELATED SIGNAL(System checking) TRSO FIG 10-1 (DVD) TRSO FIG 10-2 (CD) 3-19... -
Page 31: Mt1389E Audio Optical And Coaxial Output (Spdif)
11. MT1389E AUDIO OPTICAL AND COAXIAL OUTPUT (SPDIF) FIG 11-1 12. MT1389E VIDEO OUTPUT WAVEFORM 1) 100% TRSO FIG 12-1 3-20... -
Page 32: Audio Output From Audio Mt1389E
2) COMPOSITE VIDEO SIGNAL FIG 12-2 13. AUDIO OUTPUT FROM AUDIO MT1389E FIG 13-1 3-21... -
Page 33: Block Diagrams
BLOCK DIAGRAMS 1. OVERALL BLOCK DIAGRAM MA11,BA1 DQM[0:1] DQ[00:15] F+,F-,T+,T- SP+,SP- SL+,SL- LOAD+,LOAD- DECK MECHANISM MT1389E 3-22... -
Page 34: Power(Smps) Block Diagram
2. POWER(SMPS) BLOCK DIAGRAM TRANS AC100~240V SWITCHING IC FILTER RECTIFIER MT1389E 3-23... -
Page 35: Servo Block Diagram
3. SERVO BLOCK DIAGRAM MT1389E 3-24... -
Page 36: Mpeg & Memory Block Diagram
4. MPEG & MEMORY BLOCK DIAGRAM MA11,BA1 DQM[0:1] DQ[00:15] MT1389E 3-25... -
Page 37: Video & Audio Block Diagram
5. VIDEO & AUDIO BLOCK DIAGRAM MT1389E 3-26... -
Page 38: 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 THE SET IS NOT DELAYED UNTIL THE NEW SERVICE TYPES IDENTICAL TO THOSE IN THE ORIGINAL CIR- LITERATURE IS PRINTED. -
Page 39: System Circuit Diagram
2. SYSTEM CIRCUIT DIAGRAM 3-29 3-30... -
Page 40: Servo Circuit Diagram
3. SERVO CIRCUIT DIAGRAM 3-31 3-32... -
Page 41: Av/Jackcircuit Diagram
4. AV/JACK CIRCUIT DIAGRAM 3-33 3-34... -
Page 42: Timer Circuit Diagram ( 3 Tool Only )
5. TIMER CIRCUIT DIAGRAM ( 3 TOOL ONLY ) 3-35 3-36... -
Page 43: Timer Circuit Diagram ( 4 Tool Only )
6. TIMER CIRCUIT DIAGRAM ( 4 TOOL ONLY ) 3-37 3-38... -
Page 44: Timer Circuit Diagram ( 6 Tool Only )
7. TIMER CIRCUIT DIAGRAM ( 6 TOOL ONLY ) 3-39 3-40... -
Page 45: Timer Circuit Diagram ( 7 Tool Only )
8. TIMER CIRCUIT DIAGRAM ( 7 TOOL ONLY ) 3-41 3-42... -
Page 46: Timer Circuit Diagram ( 8 Tool Only )
9. TIMER CIRCUIT DIAGRAM ( 8 TOOL ONLY ) 3-43 3-44... -
Page 47: Karaoke Circuit Diagram (Karaoke Model Only)
10. KARAOKE CIRCUIT DIAGRAM (KARAOKE MODEL ONLY) 3-45 3-46... -
Page 48: Circuit Voltage Chart
• CIRCUIT VOLTAGE CHART MODE MODE MODE MODE MODE MODE MODE MODE MODE STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. -
Page 49: Printed Circuit Diagrams
PRINTED CIRCUIT DIAGRAMS 1. MAIN P.C.BOARD ( TOP VIEW ) ( BOTTOM VIEW ) 3-49 3-50... -
Page 50: Key P.c.board
2. KEY P.C.BOARD 3. TIMER P.C.BOARD ( 3 TOOL ) ( 3 TOOL TOP VIEW ) ( 3 TOOL BOTTOM VIEW ) LOCATION GUIDE LOCATION GUIDE LOCATION GUIDE ( 4 TOOL ) ( 4 TOOL TOP VIEW ) ( 4 TOOL BOTTOM VIEW ) LOCATION GUIDE LOCATION GUIDE ( 6 TOOL ) -
Page 51: Smps P.c.board(360Mm Only)
4. SMPS P.C.BOARD(360mm ONLY) 5. SMPS P.C.BOARD(430mm ONLY) 6. KARAOKE P.C.BOARD (KARAOKE MODEL ONLY) LOCATION GUIDE LOCATION GUIDE 3-53 3-54...