LG DP122 Скачать руководство пользователя страница 38

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Содержание DP122

Страница 1: ...SERVICE MANUAL MODEL DP122 CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL MODEL DP122 SERVICE MANUAL Website http biz lgservice com Internal Use Only P NO AFN75734177 NOVEMBER 2012 j o m i ...

Страница 2: ...1 1 CONTENTS SECTION 1 SUMMARY SECTION 2 CABINET MAIN CHASSIS SECTION 3 ELECTRICAL SECTION 4 MECHANISM DP 15 SECTION 5 REPLACEMENT PARTS LIST j o m i ...

Страница 3: ...T SAFETY SERVICING GUIDELINES FOR DVD PRODUCTS 1 3 SERVICING PRECAUTIONS 1 4 GENERAL SERVICING PRECAUTIONS INSULATION CHECKING PRODEDURE ELECTROSTATICALLY SENSITIVE ES DEVICES THE PROCESS OF DISC USB DOWNLOAD 1 5 SPECIFICATIONS 1 9 j o m i ...

Страница 4: ...line plug has not been defeated 3 Soldering must be inspected to discover possible cold solder joints solder splashes or sharp solder points Be certain to remove all loose foreign par ticles 4 Check for physical evidence of damage or deterioration to parts and compo nents for frayed leads or damaged insulation including the AC cord and replace if necessary 5 No lead or component should touch a hig...

Страница 5: ... Input terminals Earphone jacks etc Electrostatically Sensitive ES Devices Some semiconductor solid state devices can be damaged easily by static electricity Such components commonly are called Electrostatically Sensitive ES Devices Examples of typical ES devices are integrated circuits and some field effect transistors and semiconductor chip components The following techniques should be used to h...

Страница 6: ...nd then choose a TV Aspect menu And choose 16 9 menu 4 Press the 1 3 9 7 1 3 9 numerical button Enter key on remote control to confirm the system information 5 Remember or write the model name 6 Change the program file name of new version rename to the model name Model name LG_DV_LVC10F33208CMV Ex New ver program file LG_DV_LVA10F73208CHE_V0 4 ROM Rename LG_DV_LVC310F732080MV ROM LG_DV_LVC10F33208...

Страница 7: ... 9 The below picture will appears on the screen 10 Tray will open automatically Take off the disc and press PLAY to upgrade 11 After download process completed DVD player will turn off and turn on automatically 12 Do it again the process 1 2 3 4 to confirm the version 4 j o m i ...

Страница 8: ... cursor button and then choose a TV Aspect menu And choose 16 9 menu 4 Press the 1 3 9 7 1 3 9 numerical button Enter key on remote control to confirm the system information 5 Remember or write the model name 6 Change the program file name of new version rename to the model name Model name LG_DV_LVC10F33208CMV Ex New ver program file LG_DV_LVA10F73208CHE_V0 4 ROM Rename LG_DV_LVC310F732080MV ROM L...

Страница 9: ...n the USB Flashdisk As the return icon displays press the Return button on remote control 9 The below picture will appears on the screen 10 Take off the USB and press PLAY to upgrade 11 After download process completed DVD player will turn off and turn on automatically 12 Do it again the process 1 2 3 4 to confirm the version j o m i ...

Страница 10: ...t Net Weight Approx 1 4 kg Operating temperature 5 C to 35 C Operating humidity 5 to 90 Laser Semiconductor laser Signal system PAL NTSC INPUTS USB IN 4 pin USB 2 0 1 1 standard OUTPUTS Video Output 1 0V p p 75Ω sync negative RCA jack x 1 Audio Output 2 0 Vrms 1kHz 0dB 600 Ω RCA jack L R x 1 Digital Output Coaxial 0 5 V p p 75 Ω RCA jack x 1 j o m i ...

Страница 11: ...1 10 MEMO j o m i ...

Страница 12: ...2 1 SECTION 2 CABINET MAIN CHASSIS CONTENTS EXPLODED VIEWS 2 2 1 CABINET AND MAIN FRAME SECTION 2 2 2 DECK MECHANISM SECTION DP 15 2 3 3 PACKING ACCESSORY SECTION 2 4 j o m i ...

Страница 13: ...2 2 A43 283 250 462 261 260 A44 284 A B 261 465 MAIN BOARD A46 SMPS BOARD 462 462 468 A47 A B 468 278 300 EXPLODED VIEWS 1 CABINET AND MAIN FRAME SECTION j o m i ...

Страница 14: ...2 3 2 DECK MECHANISM SECTION DP 15 442 442 010 442 012 012 012 019 026 440 015 017 013 439 018 A02 A01 001 002 003 014 015A 015B 016 020 435 A03 037 j o m i ...

Страница 15: ...2 4 3 PACKING ACCESSORY SECTION 801 Owner s manual 808 Batteries 900 Remote control 813 Plug Ass y 3 way 804 Packing Sheet 803 Packing 803 Packing 802 Box Carton j o m i ...

Страница 16: ... 7 SPINDLE CONTROL WAVEFORM NO DISC CONDITION 3 23 8 FOCUS ON WAVEFORM 3 24 9 TRACKING CONTROL RELATED SIGNAL SYSTEM CHECKING 3 25 10 MT1389V AUDIO COAXIAL OUTPUT SPDIF 3 26 11 MT1389V VIDEO OUTPUT WAVEFORM 3 26 12 AUDIO OUTPUT FROM MT1389V 3 27 WIRING DIAGRAM 3 28 BLOCK DIAGRAMS 3 29 1 OVERALL BLOCK DIAGRAM 3 29 2 SMPS KEY BLOCK DIAGRAM 3 30 3 POWER BLOCK DIAGRAM 3 31 4 SYSTEM BLOCK DIAGRAM 3 32 ...

Страница 17: ...if output voltage 5 V on MAIN board of Q601 emitter is normal If output voltage 5 V of Q601 is not normal please check 5 VA of CN602 pin3 the working status If output voltage 5 V is not normal please check the working status of SMPS board 3 Please check if output voltage 1 8 VA from MAIN board Q208 collector pin is normal If output voltage 1 8 V is not normal please check the working status of MAI...

Страница 18: ...f the MAIN board 2 Please check if output voltage 1 8 V from IC601 pin54 pin90 pin123 is normal If output voltage 1 8 V is not normal please check 1 8 V power line of the MAIN board 3 Please check oscillating frequency 27 MHz of MAIN board X601 crystal is normal If oscillating frequency 27 MHz is not normal please check if X601 and its peripheral circuit is in failure 4 Please check if frequency 1...

Страница 19: ... check if output voltage 3 3 V from IC603 pin1 3 9 14 27 43 49 is normal If output voltage 3 3 V is not normal please check 3 3 V power circuit of MAIN board 2 Please check every signal connected between IC603 and IC601 pin45 86 especially including DATA and ADDRESS signal If DATA and ADDRESS signal is not normally output please check if IC603 is in failure ONE POINT REPAIR GUIDE IC601 MPEG IC603 ...

Страница 20: ...rcuit 1 Please check if output voltage 3 3 V from IC602 pin8 is normal If output voltage 3 3 V is not normal please check 3 3 V power circuit of MAIN board 2 Please check every signal connected between IC602 and IC601 especially including CE DATA and CLK signal If CE DATA and CLK signal is not normally output please check if IC602 is in failure ONE POINT REPAIR GUIDE IC602 FLASH IC601 MPEG j o m i...

Страница 21: ...d between IC201 and IC601 especially including F F T T SP SP SL SL signal to drive MD If F F T T SP SP SL SL signal is not normally output please check if IC201 is in failure If IC201 signal is not normally output please check connection MD of CN202 to MD if is in failure 2 Please check every signal connected between MD to IC601 especially including RFA RFB RFC RFD RFE RFF signal from MD If RFA RF...

Страница 22: ...tput or component output 2 1 Please check the solder joint status of MAIN board connector JK701 If JK701 has cold solder joint JK701 pins should be oxidized and please replace JK701 2 2 Please check CVBS signal of MAIN board IC601 pin99 If CVBS signal is not normally output please check if IC601 is in failure ONE POINT REPAIR GUIDE JK701 AV JACK IC601 MPEG j o m i ...

Страница 23: ...d please replace JK701 3 2 Please check the working status of MAIN board IC702 If output voltage 12 V on IC702 pin8 is not normal please check 12 V power circuit of MAIN board If AL and AR signal from IC702 pin1 2 6 7 is not normally output please check if IC702 is in failure 3 3 Please check the working status of MAIN board IC601 If AL and AR signal from IC601 pin116 pin118 is not normally output...

Страница 24: ...108 normal Check or Replace the IC101 YES NO Is the Vcc about 17V supplied to IC101 Pin2 Replace D123 or check if any short circuits YES NO Is the D123 normal Replace the IC103 YES NO Is there about 2 5V at the IC103 Pin1 Replace D125 or check if any short circuits YES NO Is the D125 normal Replace T101 IC102 IC103 YES NO Is the transformer or feed back circuits ELECTRICAL TROUBLESHOOTING GUIDE j ...

Страница 25: ... 14 VA on cathode of D125 Check 5 VA troubleshooting flow YES NO Is the 5 VA on cathode of D123 No 12 V Check 14 VA troubleshooting flow YES YES NO Check 12 V line circuits Is the 14 VA supplied to emitter of Q603 Check Power control H from IC601 It must be High state during power on YES NO Is the 12 V output on collector of Q603 j o m i ...

Страница 26: ... 3 3 V on pin2 of IC605 No 5 V USB Check 5 VA troubleshooting flow YES YES NO Replace Q601 or check output circuits Is the 5VA on collector of IQ605 Check voltage on base of Q601 or ZD601 YES NO Is the 5V on emitter of IQ605 No 5 V Check 5 VA troubleshooting flow YES YES NO Replace Q601 or check output circuits Is the 5 VA on collector of IQ601 Check voltage on base of Q601 or ZD601 YES NO Is the ...

Страница 27: ...o inner position 1 Judge whether have disc and disc type 2 Jump to related disc reading procedure 1 Execute pressed Key IR key 2 System operation routine loop 1 Stop playback open Tray 2 Display tray open message LOGO NO YES YES NO YES YES NO NO Tray closed SLED at inner side Recieve OPEN CLOSE Key Receive CLOSE Key j o m i ...

Страница 28: ...n YES Check 3 3V and 1 8V line on Main PCBA YES NO Connect to PC RS232 cable and update the FLASH memory code 1 Check 27MHz system clock 2 Check system reset circuit 3 Check FLASH R W enable signal PRD RWR 4 Check RS232 SIGNALS 5 Check FLASH Memory related circuit NO YES Check the AC Voltage Power PCBA 110V or 220V Update FLASH successfully Is the DC supply output OK 3 3VA 5 3VA 12V Is 3 3V and 1 ...

Страница 29: ...l Check AV cable connection to TV set NO NO YES Check the load OPEN CLOSE switch NO YES Check the Tray control signal IO pins on Mpeg and Servo IC NO YES Check the Tray control amplifying circuit on Motor driver Check the cable connection between main PCBA and loader YES YES Show LOGO Flash memory operates properly Is the Mpeg Video outputs properly Is TROPEN TRCLOSE signal outputs properly Normal...

Страница 30: ...isc and tray close YES YES Check cable connect on with pick up head YES YES Is STBY pin of Motor IC is High Is DMSO pin level higher than 1 65V Is SL SLP signal outputs properly NO NO Check FOSO connection between MPEG and Motor driver IC Is FOSO pin outputs to motor driver NO Check the amp circuit on motor driver Is F F pin outputs properly Optical Lens has movements for searching focus B C Does ...

Страница 31: ...k FMSO PWM signal related circuit on MPEG to Servo NO YES Check the spindle control amp circuit of motor driver Check the cable connection between spindle and main PCBA YES YES Laser turns on when reading disc DVD_LD CD_LD output properly NO Check the related circuit on laser power transistor Collector voltage of power transistor is OK Put disc in Disc ID is correct Does spindle rotate Is FMSO PWM...

Страница 32: ... RF signal A B C D of MPEG IC properly NO NO Check TRSO connection between MPEG and Motor driver IC Track on OK Disc is play Is the TRSO signal on MPEG IC properly NO Check the tracking control amp circuit on motor driver Is T T pin outputs properly NO NO Check FOSO connection between MPEG and Motor driver IC Is the FOSO signal on MPEG IC properly YES Check the focus control amp circuit on motor d...

Страница 33: ...ce Remocon receiver RC901 YES YES TEST END Check connection IR from SMPS board to Main board Normal Audio output when disc playback Audio AMP received correct data stream Is the IR signal and level to Mpeg is normally Is the Remocon function NO Check the related circuit of Audio AMP Check 12V power supply from SMPS board Normal Audio AMP out E j o m i ...

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Страница 41: ...PDIF 11 MT1389V VIDEO OUTPUT WAVEFORM 1 100 COLOR BAR 33 FIG 10 1 FIG 11 1 34 33 j YY XWW m j YX XWW m y WZ XXW hzwkpm y WX XWW y WY j YZ XWW m 34 s WX YYWuo k W ih X j Y jvttvu Zh j iz y W G XL j Y XWW m uj j X uj XW m ZZh j _ U m j o m i ...

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Страница 43: ...V USB LED H KEY 1 USB GND IR KEY 2 MAIN Board POWER 5 1 Channel RCA 8P Video Audio L R Coaxial RCA 4P MD Motor LD SP 9P MD RF Pickup 23P 5VA BtoB connector SMPS IO LED IR USB 1 2 3 6 7 8 9 4 5 10 11 12 WIRING DIAGRAM j o m i ...

Страница 44: ... POWER BOARD PWR_CTL_H AC 90V 240V 50HZ 60Hz 1 2VA 27MHz 1 2VA RF DSP Karaoke USB MPEG IC MDI1 IOA V20 y y ln V1P4 AR AL 12V IC702 NJM4580M OP AMP APWM_L APWM_R D_MUTE SF_CK SF_CS SF_DI SF_DO Key_2 Key_1 5V SMPS TIMER 3 3VA yln USB Jack 5V ASPDIF coaxial CVBS Key Play eject IR IC603 SDRAM EM638165TS 6G 16M bit 3 3VA Ma0 11 DQ0 15 DBA0 1 DQM0 1 SDCLK DRA S DCAS DWE Rear L Rear R 12V IC702 NJM4580M ...

Страница 45: ...00 240V RECTIFIER LPF 12V RECTIFIER 5 6V LPF 5 6VA SNUBBER USB DP DP LED LED_H R C IR Swathing rl X rl GY wv lyGrl rl GvwluVjsvzl rl Gwsh CONNECTOR RECTIFIER CAUTION HOT AREA FRONT KEY SWITCHING IC TRANS FEED B AC100 240V RECTIFIER SNUBBER RECTIFIER CAUTION HOT AREA j o m i ...

Страница 46: ...pjYWXG h t _ Wz z l y v v V Gt kG t Gj x W pj WXGt XZ_ h khj kkX s WXGoi s WZGoi pj WXGt XZ_ h h k kk s W Goi pj WXGt XZ_ h wss kk s W Goi pj WXGt XZ_ kh j kkhbkhj kkibkhj kkjb s W_Goi pj WXGt XZ_ k kkZZ pj WXGt XZ_ k kkX_ pj WXGt XZ_ h kkX_ Xbh kkX_ Yb zi X_ s WYGoi pj WZ l t Z_X zT n s W Goi Pwr_ctl pj WXGt XZ_ h kkZZ XbGh kkZZ Yb zi ZZ pj WY z z Y mW_Wi IC605 3 3V REG UXGv u qt _Wt ZUZG hV ZZh ...

Страница 47: ... optical pklvGp CVBS IC602 SPI Flash SST25VF080B SF_CK SF_CS SF_DI SF_DO KEY_1 KEY_2 RF DSP 5 1 Channel USB MPEG IC IC603 SDRAM EM638165TS 6G 16M bit 3 3VA Ma0 11 DQ0 15 DBA0 1 DQM0 1 SDCLK DRAS DCAS DWE Rear L Rear R 12V IC702 NJM4580M OP AMP ARS ALS Woofer Center 12V IC702 NJM4580M OP AMP Center Woofer 5 1 Option z iGG DP DP j o m i ...

Страница 48: ...ve IC DVD A B C D RFO CD A B C D E F RFO SP SP PICK UP IM X601 IC601 MT1389V MPEG CHIP F F T T LOAD LOAD 27MHz X TAL TRAYIN TRAYOUT ALPC SL SL MDI1 M_RESET V1 8A z Gt z Gt s Gt v Vj z m SG h CMS S77RFV FMSO DMSO FOSO TRSO TROPEN TRCLOSE STBY OP OP IOA j o m i ...

Страница 49: ...CK DIAGRAM h sGG h yGG pj WX t XZ_ G t w lnGjopw k t l zwkpm htw uqt _W pj WY hG G y hGv G s v R s MC4580 IC502 MC4580 IC503 hsz hyz j y G y y G s j V OUT j iz MC4580 IC502 MC4580 IC503 y y y s j DP126 Option j o m i ...

Страница 50: ... THE ORIGINAL DESIGN BE MODIFIED OR ALTERED WITHOUT PERMISSION FROM THE LG CORPORATION ALL COMPONENTS SHOULD BE REPLACED ONLY WITH TYPES IDENTICAL TO THOSE IN THE ORIGINAL CIRCUIT SPECIAL COMPONENTS ARE SHADED ON THE SCHEMATIC FOR EASY IDENTIFICATION THIS CIRCUIT DIAGRAM MAY OCCASIONALLY DIFFER FROM THE ACTUAL CIRCUIT USED THIS WAY IMPLEMENTATION OF THE LATEST SAFETY AND PERFORMANCE IMPROVEMENT CH...

Страница 51: ...6 8 7 5 9 3 1 2 4 A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T WAVEFORM NUMBER MPEG EAX64794602 SD 1 2012 07 19 3 37 3 38 2 MAIN MPEG CIRCUIT DIAGRAM j o m i ...

Страница 52: ...29 20 28 12 10 11 25 26 15 18 27 16 17 14 13 22 23 21 WAVEFORM NUMBER A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T SERVO EAX64794602 SD 2 2012 07 19 3 39 3 40 3 MAIN SERVO CIRCUIT DIAGRAM j o m i ...

Страница 53: ...34 36 33 35 WAVEFORM NUMBER A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T AV EAX64794602 SD 3 2012 07 19 3 41 3 42 4 MAIN AV CIRCUIT DIAGRAM j o m i ...

Страница 54: ... 073 82 0 287 0 232 83 2 241 2 098 84 3 283 3 283 85 2 217 2 084 86 1 871 1 525 87 0 168 0 008 88 0 022 0 008 89 3 246 3 013 90 1 898 1 895 91 3 281 3 272 92 3 135 3 153 93 1 852 1 518 94 0 572 0 464 95 3 254 3 253 96 0 243 0 163 97 1 175 1 175 98 0 001 0 99 0 434 0 396 100 3 249 3 248 101 3 249 3 248 102 0 644 0 871 103 3 24 3 217 PIN NO NO DISC PLAYBACK 104 1 925 1 759 105 0 002 0 106 0 002 0 10...

Страница 55: ... GND 0 0 6 USB 0 007 0 008 7 USB 0 007 0 008 8 5V USB 5 5 9 KEY2 3 24 3 21 10 KEY1 3 24 3 21 11 LED H 3 1 3 09 12 IR 2 94 2 95 LOCATION SPEC NO DISC PLAYBACK C708 470u 16V 6 21 0 6 21 0 PIN NO PIN name Functional STOP PLAYBACK CN101 1 5VA 5 1 5 1 2 5VA 5 1 5 1 3 GND 0 0 4 14VA 14 14 5 GND 0 0 6 USB 0 007 0 008 7 USB 0 007 0 008 8 5V USB 5 5 9 KEY2 3 24 3 21 10 KEY1 3 24 3 21 11 LED H 3 1 3 09 12 I...

Страница 56: ...3 47 3 48 PRINTED CIRCUIT BOARD DIAGRAMS 1 MAIN P C BOARD TOP VIEW BOTTOM VIEW j o m i ...

Страница 57: ...3 49 3 50 2 SMPS KEY LED P C BOARD TOP VIEW BOTTOM VIEW NOTE Warning Parts that are critical with respect to risk of fire or electrical shock j o m i ...

Страница 58: ...sc 4 3 1 1 1 Plate Clamp 4 3 1 1 2 Magnet Clamp 4 3 1 1 3 Clamp Upper 4 3 2 Tray Disc 4 3 3 Base Assembly Sled 4 4 3 1 Gear Feed 4 4 3 2 Gear Middle 4 4 3 3 Gear Rack 4 4 4 Rubber Rear 4 4 5 Frame Assembly Up Down 4 5 6 Belt Loading 4 5 7 Gear Pulley 4 5 8 Gear Loading 4 5 9 Guide Up Down 4 5 10 PWB Assembly Loading 4 5 11 Base Main 4 5 EXPLODED VIEW 1 Deck Mechanism Exploded View 4 6 j o m i ...

Страница 59: ...r Rack 1 Screw 4 3 9 1 2 7 11 Rubber Rear 4 3 1 2 7 12 Frame Assembly 1 Screw Bottom 4 4 Up Down 1 2 13 Belt Loading 1 Locking Tab 4 4 1 2 13 14 Gear Pulley 4 4 1 2 13 14 15 Gear Loading 1 Locking Tab 4 4 1 2 7 12 16 Guide Up Down 4 4 13 14 1 2 13 17 PWB Assembly 1 Locking Tab Bottom 4 4 Loading 1 Hook 2 Screw 1 2 7 12 13 14 15 18 Base Main 2 Locking Tabs 4 4 16 17 TOP VIEW WITH TRAY BOTTOM VIEW N...

Страница 60: ...mp 1 1 3 Clamp Upper 2 TRAY DISC FIG 4 2 1 Insert and push a Driver in the emergency eject hole A at the right side or put the Driver on the Lever B of the Gear Emergency and pull the Lever B in direction of arrow so that the Tray Disc is ejected about 15 20mm 2 Pull the Tray Disc until it is separated from the Base Main completely DECK MECHANISM DISASSEMBLY FIG 4 1 FIG 4 2 MAIN BASE PLATE CLAMP M...

Страница 61: ...ar Middle 3 3 Gear Rack 1 Release the Scerw S3 4 RUBBER REAR FIG 4 3 BASE PU RUBBER DAMPER RUBBER DAMPER RUBBER DAMPER Distinguish upper and lower sides Assemble with care Distinguish upper and lower sides Assemble with care GEAR RACK GENERAL PICK UP ASSEMBLY SPINDLE MOTOR ASSEMBLY S2 S2 S2 S2 FIG 4 3 j o m i ...

Страница 62: ...UIDE UP DOWN FIG 4 4 1 Move the Guide Up Down in direction of arrow A as Fig A 2 Push the Locking Tab L5 down and then lift up the Guide Up Down to separate it from the Base Main Note When reassembling place the Guide Up Down as Fig C and move it in direction arrow B until it is locked by the Locking Tab L5 And confirm the Guide Up Down as Fig A 10 PWB ASSEMBLY LOADING FIG 4 4 Note Put the Base Ma...

Страница 63: ...4 6 EXPLODED VIEW 1 DECK MECHANISM EXPLODED VIEW DP 15 442 442 010 442 012 012 037 012 019 026 440 015 017 013 439 018 A02 A01 001 002 003 014 015A 015B 016 020 435 A03 j o m i ...

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Содержание DP122

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LG DP122, Руководство по обслуживанию

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Содержание DP122

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