LG DP372D Service Manual Download | Manualshive

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Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

LGE Internal Use Only

BLOCK DIAGRAMS

1. OVERALL BLOCK DIAGRAM

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Summary of Contents for DP372D

Page 1: ...AFETY PRECAUTIONS IN THIS MANUAL MODEL DP372D SERVICE MANUAL P NO AFN56903654 JULY 2008 Website http biz lgservice com Internal Use Only Av Sor Juana lnés de la Cruz No 555 Col San Lorenzo Tlalnepantla Estado de México CP 54033 Tel 321 19 00 Fax 5 657549 Lada sin costo 01 800 50 481 00 ...

Page 2: ...ht 2008 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only CONTENTS SECTION 1 SUMMARY SECTION 2 EXPLODED VIEWS SECTION 3 ELECTRICAL SECTION 4 REPLACEMENT PARTS LIST ...

Page 3: ...nd service purposes LGE Internal Use Only SECTION 1 SUMMARY CONTENTS PRODUCT SAFETY SERVICING GUIDELINES FOR PORTABLE DVD PRODUCTS 1 3 SERVICING PRECAUTIONS 1 4 GENERAL SERVICING PRECAUTIONS INSULATION CHECKING PRODEDURE ELECTROSTATICALLY SENSITIVE ES DEVICES SPECIFICATIONS 1 5 ...

Page 4: ...stalledpertheorig inal design Be sure that the safety purpose of the polarized line plug has not been defeated 3 Soldering must be inspected to discover possible cold solder joints solder splash es or sharp solder points Be certain to remove all loose foreign particles 4 Check for physical evidence of damage or deterioration to parts and components for frayed leads or damaged insulation including ...

Page 5: ...uld be more than 1Mohm Note 1 Accessible Conductive Parts include Metal panels 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 ...

Page 6: ...dio Video Output ø3 5mm mini jack x 1 Video 1 0V p p 75Ω sync negative Audio 1 5Vrms 1kHz 0dB Earphone terminal ø3 5mm stereo mini jack x 2 Antenna Input 75 ohms VHF UHF Channel coverage Analog VHF 2 13 UHF 14 69 CATV 1 135 Digital Terrestrial 2 69 Cable 1 135 LIQUID CRYSTAL DISPLAY Panel size 7 inches wide diagonal Projection system R G B stripe Driving system TFT active matrix Resolution 480 x 2...

Page 7: ...1 6 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only MEMO ...

Page 8: ...LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only SECTION 2 EXPLODED VIEWS CONTENTS EXPLODED VIEWS 2 2 1 CABINET AND MAIN FRAME SECTION 2 2 2 PACKING ACCESSORY SECTION 2 3 ...

Page 9: ... G F E J B B M E F G D M L K A48 A40 A51 A43 A53 A41 A52 INVERTER BOARD LCD BOARD KEY BOARD MAIN BOARD 252 251A 251 272 277 286 284 269 260 266 261 283 285 285 287 265 264 293 295 296 A00 A46 A45 A44 289 CABLE8 CABLE2 CABLE3 CABLE9 CABLE1 CABLE10 279 263 262 809 278 282 281 277 253 288 262 266 EXPLODED VIEWS 1 CABINET AND MAIN FRAME SECTION ...

Page 10: ...LGE Internal Use Only 2 PACKING ACCESSORY SECTION PLUG ASS Y RCA CABLE 806 834 ADAPTER 833 REMOTE CONTROL 900 MASTER BOX DW 802 BOX SWM3 802A 808 BATTERY CABLE CIGAR JACK 811 RF CABLE 837 TUNER ANALOG 804 PACKING SHEET 803 PACKING BOX ACCESSORY 802B 835 CAR MOUNT 838 ANTENNA BAR 801 OWNER S MANUAL ...

Page 11: ...2 4 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only MEMO ...

Page 12: ... OUTPUT WAVEFORM 3 18 10 AUDIO OUTPUT FROM 1389P 3 18 WIRING CONNECTION DIAGRAMS 3 19 1 WIRING CONNECTION DIAGRAM 1 3 19 2 WIRING CONNECTION DIAGRAM 2 3 20 BLOCK DIAGRAMS 3 21 1 OVERALL BLOCK DIAGRAM 3 21 2 POWER BLOCK DIAGRAM 3 22 3 SERVO BLOCK DIAGRAM 3 23 4 SYSTEM BLOCK DIAGRAM 3 24 5 AV BLOCK DIAGRAM 3 25 6 LCD BLOCK DIAGRAM 3 26 CIRCUIT DIAGRAMS 3 27 1 MPEG CIRCUIT DIAGRAM 3 27 2 MEMORY CIRCU...

Page 13: ...r training and service purposes LGE Internal Use Only No 3 3VA Check Q305 Q306 and Replace Replace U301 NO 1 POWER CHECK FLOW A B Is 5VA section working Check Q303 D301 and Replace Check Q304 D302 and Replace YES YES YES NO Is VCC_5V section working No 5VA Check D501 Replace NO BAT_OUT 12V YES YES ...

Page 14: ...eset RISC Show LOGO Tray close to closed position SLED moves to 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 2 SYSTEM OPERATION FLOW Tray closed SLED at inner side Receive OPEN CLOSE Key Receive CLOSE ...

Page 15: ...PCBA don t short on VCCs and switch it on YES Check the regulators or related diodes 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 A YES Check the AC voltage power PCBA 110V or 220V Update FLASH successfully Is the DC volt...

Page 16: ...eck the filtering and amp circuit of TV signal Check AV cable connection to TV set NO NO YES Check the load OPEN CLOSE switch NO YES Check the Tray control IO pins on 1389P AM5898N 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 138PDE LP VIDEO outputs properly Normal OPEN_SW C...

Page 17: ...onnection with MECHA Do not put in disc and tray close YES YES Check cable connect on with pick up head YES YES Motor driver DR_MUTE pin is high Is SLD_PWM DC level higher than 1 65V FAN_SLD FAN_SLD output properly Does the SLED move to inner side when it is at outer position NO NO Check FOD connection on 1389P and motor driver Proper FOD outputs to motor driver NO Check the amp circuit on motor d...

Page 18: ...n RF signal Check DVD_LD CD_LD signal YES YES NO NO YES Check SPD_PWM related circuit on 1389P YES 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 Proper SPD_PWM signal on...

Page 19: ... connection on pick up head Check RF signal waveform Focus on OK Proper signals on A B C D of 1389P NO NO Check the TRD connection on 1389P and motor driver Track on OK Disc is play Properly TRD signal on 1389P NO Check the tracking control amp circuit on motor driver TRK TRK output properly NO Check the FOD connection on 1389P and motor driver Check FOD signal on 1389P YES Check the focus control...

Page 20: ...dio filter amplify mute circuit NO NO YES Check communication lines on 1389P YES YES TEST END Check the cable connection on front panel Normal audio output when disc playback Audio AMP received correct data stream Commu nications between IR VFD front panel key 1389P is normally Normal IR VFD Front panel key functions NO Check the related circuit of audio AMP Normal audio AMP out E ...

Page 21: ...Check the cable connection on pick up head Change the TUNER DVD_MODE OK NO NO Change the MP1411 TV_5V supply OK TV_AUDIO VIDEO OUTPUT Pin single noraml Check the IC MP1411 TV_MODE_TEST TV_MODE TEST END NO Check cable ANTENA attach YES Cable ANTENA NO Reset the system according to the local TV system then auto search channels YES System set right PAL NTSC SECAM YES YES TV display normal ...

Page 22: ...ck is at 27MHz Y201 1 2 1389P reset is active high FIG 1 1 1 1 8V 3 3V CM1117SCM223 3 1 4 2 C171 104 C171 104 CE111 100uF 6 3V CE111 100uF 6 3V 1 2 CE110 100uF 6 3V CE110 100uF 6 3V 1 2 U102 CM1117SCM233 SOT223 U102 CM1117SCM233 SOT223 OUT 2 IN 3 ADJ 1 TAB 4 L115 50 PB L115 50 PB R123 330 R123 330 R121 680 R121 680 M_RESET 3 3V R127 NC R127 NC CE112 NC 47uF 10V CE112 NC 47uF 10V 1 2 TROPEN Tray_Op...

Page 23: ...ly RXD TxD 3 3V CN101 CON4_2 0MM_DIP CN101 CON4_2 0MM_DIP 1 2 3 4 1 3 RS232 waveform during procedure Downloading 1 4 EEPROM SCK FIG 1 3 4 5 SDA SCL SD33 U203 EEPROM 24C02 SOP8 U203 EEPROM 24C02 SOP8 NC 1 NC 2 NC 3 GND 4 SDA 5 SCL 6 WP 7 VCC 8 R210 1K R210 1K R209 1K R209 1K C210 104 C210 104 FIG 1 4 6 6 4 5 TXD RXD ...

Page 24: ...DCKE DBA1 DBA0 BA0 DCLK SDCLK R207 33 R207 33 R206 33 R206 33 R205 33 R205 33 R208 151 R208 151 2 SDRAM CLOCK 3 TRAY OPEN CLOSE SIGNAL FIG 2 1 7 TROPEN S3 3V Tray_Open_SW C322 104 C322 104 SW301 SW PUSHBUTTON SW301 SW PUSHBUTTON 1 4 2 3 C321 104 C321 104 R332 10K R332 10K FIG 3 1 8 8 7 DCLK 128MHz Vp p 1 77 Vmax 2 35V OPEN CLOSE ...

Page 25: ...L MGND PGND1 26 PGND 25 GND 36 COMP1 30 MUTE 33 PVCC1 SW2 IPK2 BIAS 34 VOFC VINFC VINTK 23 VCC2 24 VINSP 22 SW1 29 IPK1 28 CT1 31 EN1 32 VOFC PGND2 27 VOSL MGND VOTK VOSP 20 MGND 19 VOTK 18 R303 20K R303 20K R318 10K R318 10K R316 10K R316 10K C305 68pF C305 68pF C301 104 C301 104 R305 10K R305 10K R321 15 R321 15 R326 0 R326 0 4 SLED CONTROL RELATED SIGNAL FIG 4 1 DVD 9 10 11 FIG 4 2 CD 9 10 11 1...

Page 26: ... 2 3 CE313 220uF 6 3 CE313 220uF 6 3 1 2 C324 NC 104C324 NC 104 L311 10uH L311 10uH R343 4 7 R343 4 7 CN301 CON24_0 5MM CN301 CON24_0 5MM 10 9 8 7 6 5 4 3 2 1 11 13 12 15 14 16 20 19 18 17 24 23 22 21 25 26 C330 NC C330 NC L312 10uH L312 10uH CE312 100uF 10v CE312 100uF 10v 1 2 L310 FB L310 FB C325 NC 104 C325 NC 104 R339 4 7 R339 4 7 R337 47K R337 47K 5 LASER POWER CONTROL RELATED SIGNAL 6 SPINDL...

Page 27: ... U301 AM5898N EN2 1 GND 35 VCC1 10 VINSL 12 COMP2 3 CT2 2 PVCC2 7 VOSL 14 MGND 13 PVCC1 6 SW2 4 IPK2 5 VOFC 9 VINFC 11 VOFC 8 VOSL 15 MGND 16 VOTK 17 R314 15 R314 15 R313 680K R313 680K 1 2K 1 1 2K 1 C304 68pF C304 68pF R325 10K R325 10K 0 1 1 0 1 1 R324 0 R324 0 0 0 7 FOCUS ON WAVEFORM FIG 7 1 DVD 18 19 20 FIG 7 2 CD 18 19 20 18 19 20 F F FOSO F F FOSO ...

Page 28: ...PGND1 26 PGND 25 GND 36 COMP1 30 MUTE 33 PVCC1 6 SW2 4 IPK2 5 BIAS 34 VOFC 9 VINFC 11 VINTK 23 VCC2 24 VINSP 22 SW1 29 IPK1 28 CT1 31 EN1 32 VOFC 8 PGND2 27 VOSL 15 MGND 16 VOTK 17 VOSP 20 MGND 19 VOTK 18 R318 R318 R314 15 R314 15 C304 68pF C304 68pF R325 10K R325 10K R316 R316 C305 C305 C301 C301 R324 0 R324 0 R321 R321 R326 0 R326 0 8 TRACKING CONTROL RELATED SIGNAL System checking FIG 8 1 DVD 2...

Page 29: ... 680pF C428 680pF C429 ESD 15pF C429 ESD 15pF C421 680pF C421 680pF JP406 ST 066 JP406 ST 066 1 1 2 2 3 3 4 4 5 5 6 6 9 1389P VIDEO OUTPUT WAVEFORM 10 AUDIO OUTPUT FROM 1389P FIG 9 1 24 FIG 10 1 25 24 C428 680pF C428 680pF C429 ESD 15pF C429 ESD 15pF C421 680pF C421 680pF JP406 ST 066 JP406 ST 066 1 1 2 2 3 3 4 4 5 5 6 6 25 ...

Page 30: ...LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only WIRING CONNECTION DIAGRAMS 1 WIRING CONNECTION DIAGRAM 1 MAIN PCB LCD INVERTOR PCB MAI MAIN PCB CB LCD LCD PCB INVERTOR PCB ...

Page 31: ...3 20 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 2 WIRING CONNECTION DIAGRAM 2 MAIN PCB KEY PCB ke key P y PCB MAI MAIN PCB CB ...

Page 32: ... USBP USBM LCD PANEL SCL SDA A_MUTE_SW USB JACK A 5V XI XO 27MHz LDO1 LDO2 IOA V20 M DISC SPINDLE MOTOR DECK MECHANISM PICK UP SLED MOTOR M F F T T SP SP A B C D E F RFO MDI1 2 LIMIT NJM4580 AV 5V A 5V OP OP TROPEN M5V CM1117 VCOMO CPH1 MOD 89P_R G B STHL R STVL R OEH V LNR UND CKV PWRCTL_LCD VIDEO_OUT SPK_R L H P BATTERY DC_IN DC DC BLOCK1 DC DC BLOCK2 3 3V M5V AF2301P AV 5V LD_5V APM4953K SP_MUT...

Page 33: ...a Cha rge rge E Ena nable ble Cha Cha rge rge The The rmi rmist ster Divide Divide DC DC Sen Sen se se BAT BAT Se Sens nse DC DC AM5898N Reg 5VA 5VA 3 3 3 3V 1 8 1 8V S W S W A 5 A 5 V Sta Standb ndb y LCD Panel Video Audio System Servo A 5 A 5 v A 5 A 5V 3 3 3 3V 1 8 1 8V LCD Vcc 7 5 7 5V 15V 15V 10 10V D5V D5V 7 5 7 5V 15V 15V 10 10V D5V D5V A V 5V 5V M5V M5V Charge Discharge RCR RCR 2 56 2561 G...

Page 34: ...se Only 3 SERVO BLOCK DIAGRAM U401 AM5898N Motor Driver DVD A B C D RF CD A B C D E F RF PICK UP Y201 U201 MTK1389P P DVDPLAYER ONE CHIP FMSO DMSO FOSO TRSO STBY V1P4 FO FO TR TR 27MHz X TAL CDLD LD01 DVDLD LD02 IOA LIMIT ALPC MDI1 MDI2 Spi Spindle dle Mo Moter SL SL Steppi Steppi ng ng Mo Moter OP OP OPO SP SP ...

Page 35: ...ROUT GT6319 64MBit SDRAM USB JACK DQ0 DQ15 MA0 MA11 DBA0 1 DCLK DCKE 16 32MBit FLASH MEMORY AD 0 7 PCE PRD PWR 27MHz A 5V 5VA REMOCON RECEIVER LCD MODE DISPLAY SETUP MENU UP DOWN LEFT RIGHT ENTER Power Charge LED KEY_BOARD AD_KEY 3 3V 3 3V 2 14 2 8 16 64Mbit 1 8V 3 3V MT1389P MPEG POWER PLAY PAUSE REW FF STOP COLOR BRIGHT IR RED GREEN A 1 A 1 20 20 EEPROM 3 3V SCL SCL SDA SDA ...

Page 36: ...nly 5 AV BLOCK DIAGRAM TV_CTRL TV_5V SP_R R AOUT_L R 2CH DAC MT1389P MPEG VIDEO 1 8V 3 3V CVBS AUDIO PT2303 SPK SPK A 5V SP_L L H P JACK SP_L R A_MUTE_SW NJM4580M OP AMP A 5V AV OUT SP_MUTE TUNER TV_5V TV_SDA TV_SCL VOLUME MP1411 DC DC 12V VIDEO ADC GT GT6319 6319 H P JACK SP_L R 5VA TV_VIDEO 74HC4053 TV_5V TV_AUDIO ...

Page 37: ...P_R 89P_G 89P_B SP L SP L SP R SP R 3 3V BAT_OUT PWRCTL_LCD Connector Main interface VCOM BLOCK LCD POWER BLOCK VGH 15V VGL 10V 7 5V 5V URCR2561IC R G B Circuit BLOCK ROUT GOUT BOUT VCOM NJM3414A IC VOLTAGE SUPPLY SMOTHLY VGH VGL STVR STVL CKV UND OEV VCOMO LNR MOD OEH STHL STHR CPH3 CPH2 CPH1 89P_R 89P_G 89P_B LCD PANEL SPEAK SP L SP L SP R SP R BACK LIGHT BAT_OUT LCD_CTRL MP2359 IC INVERTER POWE...

Page 38: ...57 105 C157 105 R102 100K R102 100K TP106 TP106 R107 560 R107 560 R113 2 2K R113 2 2K R128 0R R128 0R C166 104 C166 104 C146 475 C146 475 C172 NC C172 NC C113 475 C113 475 R103 6 8 R103 6 8 C137 104 C137 104 C116 475 C116 475 C142 NC C142 NC C122 473 C122 473 C159 104 C159 104 C133 105 C133 105 R111 0 R111 0 C131 105 C131 105 C154 104 C154 104 TP108 TP108 C162 104 C162 104 TP120 TP120 C143 10uF 10...

Page 39: ...2 33 A2 23 DQ3 35 A3 22 DQ4 38 A4 21 DQ5 40 A5 20 DQ6 42 A6 19 DQ7 44 A7 18 DQ8 30 A8 8 DQ9 32 A9 7 DQ10 34 A10 6 DQ11 36 A11 5 DQ12 39 A12 4 DQ13 41 A13 3 DQ14 43 A14 2 DQ15 A 1 45 A15 1 A16 48 A17 17 CE 26 OE 28 RST 12 BYTE 47 A18 16 VCC 37 GND2 27 GND1 46 WE 11 RY BY 15 A19 9 NC 10 NC 13 NC 14 R201 0 R201 0 R207 33 R207 33 R210 1K R210 1K RN201 33x4 RES4 0603 RN201 33x4 RES4 0603 1 8 2 7 3 6 4 ...

Page 40: ...R327 20K R327 20K L303 FB L303 FB C323 104 C323 104 R314 15 R314 15 Q308 2SB1132 Q308 2SB1132 1 2 3 R341 150K R341 150K C333 105 C333 105 C318 105 C318 105 CE313 220uF 6 3 CE313 220uF 6 3 1 2 R313 680K R313 680K R301 27K R301 27K R306 1 2K 1 R306 1 2K 1 D302 1N5819 D302 1N5819 1 2 C324 NC 104C324 NC 104 L308 10uH L308 10uH C314 104 C314 104 L311 10uH L311 10uH R343 4 7 R343 4 7 R311 6 8K R311 6 8K...

Page 41: ...Q_2N3906 B C E Q411 Q_2N3906 2 3 1 CE415 10uF 10V CE415 10uF 10V R453 10K R453 10K TP405 TP405 R430 10K R430 10K R405 10K R405 10K CE414 10uF 10V CE414 10uF 10V PHONEJACK JP404 JP_CK 3 5 023P1K PHONEJACK JP404 JP_CK 3 5 023P1K 2 3 4 5 6 1 U402B NJM4580M U402B NJM4580M 5 6 7 8 4 B C E Q410 Q_2N3906 B C E Q410 Q_2N3906 2 3 1 C428 680pF C428 680pF TP404 TP404 C729 1uF C729 1uF C417 680pF C417 680pF C...

Page 42: ...04 C509 104 R519 51K R519 51K FB504 FB1206 FB504 FB1206 C520 104 C520 104 C516 104 C516 104 R516 1K R516 1K CE508 NC 10uF 16V CE508 NC 10uF 16V 1 2 R538 0 15 1W R538 0 15 1W F501 FUSE 1206 2 5A F501 FUSE 1206 2 5A R511 10K R511 10K R520 2K R520 2K B C E Q503 SMBT3904 B C E Q503 SMBT3904 1 3 2 FB502 600 PB FB502 600 PB C508 104 C508 104 R545 2K R545 2K TP512 TP512 D505 SS5822 D505 SS5822 1 2 R503 1...

Page 43: ...VR STVL CKV OEV UND LNR STHL STHR CPH1 VCOMO BAT_OUT PWRCTL_LCD 89P_R 89P_G 89P_B OEH AD_K2_ IR 5VA GND TO SERVO PANEL T CON I F R603 33 R603 33 CN601 CON20_0 8MM CN601 CON20_0 8MM 10 9 8 7 6 5 4 3 2 1 11 13 12 15 14 16 20 19 18 17 21 22 CN604 CON8_0 8MM CN604 CON8_0 8MM 1 2 3 4 5 6 7 8 9 10 R606 33 R606 33 CN603 CON3_1 25MM CN603 CON3_1 25MM 1 2 3 4 5 R601 33 R601 33 TP601 TP601 CM601 47uF 25V CM...

Page 44: ...4 R705 5 6K R705 5 6K TU701 M08TPT PS E TU701 M08TPT PS E AFC 9 AGC 8 VCC 7 SIF 6 SCL 5 SDA 4 AS 3 NC 2 NC 1 VIDEO_OUT 11 AUDIO_OUT 10 RF 12 13 13 14 14 15 15 16 16 D701 SS24 D701 SS24 1 2 C707 393 C707 393 R711 10K R711 10K C706 104 C706 104 R712 10K R712 10K R713 NC 0 R713 NC 0 R704 10K 1 R704 10K 1 C723 10uF 10V C723 10uF 10V C712 47p C712 47p C702 10uF 16V C702 10uF 16V C701 104 C701 104 ANT70...

Page 45: ...1 R810 15K 1 K804 MENU K804 MENU 1 2 R801 1 2K 1 R801 1 2K 1 K811 POWER K811 POWER 1 2 K805 UP K805 UP 1 2 R811 39K 1 R811 39K 1 R809 20K 1 R809 20K 1 K812 ENTER K812 ENTER 1 2 K806 DOWN K806 DOWN 1 2 R802 1 5K 1 R802 1 5K 1 K813 RI 01CS0BM K813 RI 01CS0BM K807 LEFT K807 LEFT 1 2 R808 39K 1 R808 39K 1 K801 LCD_MODE K801 LCD_MODE 1 2 R807 15K 1 R807 15K 1 Thursday December 06 2007 Thursday December...

Page 46: ... 2 2uF 16V X5R C3 2 2uF 16V X5R R11 NC R11 NC R7 10K R7 10K TP6 TP6 C6 104 C6 104 C2 104 C2 104 TP5 TP5 C4 334 C4 334 TP7 TP7 B C E Q1 SMBT3906 B C E Q1 SMBT3906 2 3 1 B C E Q2 SMBT3904 B C E Q2 SMBT3904 1 3 2 C1 103 C1 103 D2 D_13V D2 D_13V 1 2 TP3 TP3 R5 270K R5 270K R3 100K R3 100K R9 68K R9 68K CN2 3 5 2P CN2 3 5 2P 1 1 2 2 3 3 4 4 R1 0R R1 0R MP2359 LED Driver Application Wednesday August 29 ...

Page 47: ...H L2 6 8uH C47 100pF C47 100pF R38 430 270 R38 430 270 C2 10uF 16V C2 10uF 16V D5 BAT54S D5 BAT54S 3 2 1 R35 4 7K 1 R35 4 7K 1 U3 MP1540 U3 MP1540 IN 5 SW 1 EN 4 GND 2 FB 3 C10 104 C10 104 L3 10uH L3 10uH TP1 TP1 C26 10uF 16V C26 10uF 16V C20 22uF 10V C20 22uF 10V C32 100pF C32 100pF R17 45K R17 45K K2 STOP K2 STOP 1 2 C39 100pF C39 100pF C11 105 C11 105 C36 104 C36 104 C6 4 7u 25uF C6 4 7u 25uF R...

Page 48: ...3 34 3 3 171 0 0 172 0 0 173 3 34 3 34 174 1 89 1 8 175 3 34 3 34 176 3 34 3 34 177 3 34 3 34 178 0 0 179 3 2 3 2 180 3 34 3 34 181 0 0 182 0 0 183 2 45 2 5 184 1 4 1 4 185 1 4 1 4 186 0 0 187 1 4 1 4 188 3 2 3 2 189 0 0 190 3 2 3 2 191 1 2 1 2 192 0 0 193 1 35 1 34 194 1 35 1 34 195 3 2 3 2 196 3 34 3 2 197 0 0 198 0 0 199 0 0 200 3 34 3 3 201 0 0 202 0 0 203 0 0 204 0 0 205 1 89 1 83 206 0 0 207...

Page 49: ...2 11 2 11 0 0 CE107 1 46 1 46 0 0 CE108 3 21 3 18 0 0 CE109 3 22 3 19 0 0 CE110 1 92 1 86 0 0 CE111 MODE PIN NO STOP PLAY 3 22 3 18 0 0 CE201 3 26 3 24 0 0 CE202 3 2 3 18 0 0 CE301 3 35 3 33 0 0 CE302 11 88 11 86 0 0 CE303 5 12 5 10 0 0 CE304 11 88 11 86 0 0 CE305 3 20 3 17 0 0 CE306 5 08 5 0 0 0 CE309 5 1 5 03 0 0 CE310 0 0 5 03 5 03 CE310 5 08 5 08 0 0 CE310 0 0 5 03 5 03 CE311 5 1 5 04 0 0 CE31...

Page 50: ...3 51 3 52 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only PRINTED CIRCUIT BOARD DIAGRAMS 1 MAIN P C BOARD TOP VIEW ...

Page 51: ...3 53 3 54 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only MAIN P C BOARD BOTTOM VIEW ...

Page 52: ...3 55 3 56 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 2 LCD P C BOARD TOP VIEW BOTTOM VIEW 3 INVERTER P C BOARD TOP VIEW BOTTOM VIEW ...

Page 53: ...3 57 3 58 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 4 KEY P C BOARD TOP VIEW BOTTOM VIEW ...

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