LG DP372B-N Service Manual Download Page 24

Page: 24 / 51

3-13

LGE Internal Use Only

CT1

FMSO

TRSO

STBY

V1P4

SL+

STANDBY

SL-

T+

R410

10K

R410

10K

U401

AM5898N

U401

AM5898N

EN2

GND

VCC1

VINSL+

COMP2

CT2

VOSP-

PVCC2

VOSL+

MGND

PGND1

PGND

GND

COMP1

MUTE

PVCC1

SW2

IPK2

BIAS

VOFC-

VINFC

VINTK

VCC2

VINSP

SW1

IPK1

CT1

EN1

VOFC+

PGND2

VOSL-

MGND

VOTK+

VOSP+

MGND

VOTK-

R402

20K

R402

20K

R460

10K/NC

R460

10K/NC

R448 10K

C414

0.1uF

C414

0.1uF

C417 68pF

R434

R423

10K

R423

10K

R429

4. SLED CONTROL RELATED SIGNAL

FIG 4-1 < DVD >

FIG 4-2 < CD >

SL-

SL+

TRSO

SL-

SL+

TRSO

Summary of Contents for DP372B-N

Page 1: ...CE MANUAL MODEL DP372 DP372B N CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL MODEL DP372 DP372B N SERVICE MANUAL P NO AFN56903618 MARCH 2008 Website http biz lgservice com Internal Use Only ...

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: ...g humidity 5 to 90 Laser semiconductor laser Signal system NTSC CONNECTORS Audio 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 LIQUID CRYSTAL DISPLAY Panel size 7inches wide diagonal Projection system R G B stripe Driving system TFT active matrix Resolution 480 x 234 WQVGA SUPPLIED ACCESSORIES RCA Video Audio...

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

Page 10: ...for training and service purposes LGE Internal Use Only 2 PACKING ACCESSORY SECTION PLUG ASS Y RCA CABLE 806 BATTERY 808 834 ADAPTER 833 REMOTE CONTROL 900 MASTER BOX 802 BOX 802B BOX 802A 801 OWNER S MANUAL CABLE CIGAR JACK 804 PACKING SHEET 803 BAG 835 CAR MOUNT ...

Page 12: ... 16 9 1389DE LP VIDEO OUTPUT WAVEFORM 3 17 10 AUDIO OUTPUT FROM 1389DE LP 3 17 WIRING CONNECTION DIAGRAMS 3 18 1 WIRING CONNECTION DIAGRAM 1 3 18 2 WIRING CONNECTION DIAGRAM 2 3 19 BLOCK DIAGRAMS 3 20 1 OVERALL BLOCK DIAGRAM 3 20 2 POWER BLOCK DIAGRAM 3 21 3 SERVO BLOCK DIAGRAM 3 22 4 SYSTEM BLOCK DIAGRAM 3 23 5 AV BLOCK DIAGRAM 3 24 6 LCD BLOCK DIAGRAM 3 25 CIRCUIT DIAGRAMS 3 27 1 MPEG CIRCUIT DI...

Page 13: ...r training and service purposes LGE Internal Use Only No 3 3VA Check Q402 Q415 and Replace Replace U401 NO 1 POWER CHECK FLOW A B Is 5VA section working Check Q408 D401 and Replace Check Q410 D402 and Replace YES YES YES NO Is VCC_5V section working No 5VA Check D606 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: ...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 voltage outpu...

Page 16: ...S Check 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 1389DE LP 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 O...

Page 17: ...nection 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 1389DE LP and motor driver Proper FOD outputs to motor driver NO Check the amp circuit on motor...

Page 18: ...RF signal Check DVD_LD CD_LD signal YES YES NO NO YES Check SPD_PWM related circuit on 1389DE LP 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 ...

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

Page 20: ...o filter amplify mute circuit NO NO YES Check communication lines on 1389DE LP 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 1389DE LP is normally Normal IR VFD Front panel key functions NO Check the related circuit of audio AMP Normal audio AMP out E ...

Page 21: ...lock is at 27MHz Y201 1 2 1389DE LP reset is active high FIG 1 1 1 3 3V V18 CE208 100uF 6 3V CE208 100uF 6 3V 1 2 R230 330 R230 330 C236 0 1uF C236 0 1uF L207 FB 1206 L207 FB 1206 R223 680 R223 680 U202 CM1117SCM233 SOT223 U202 CM1117SCM233 SOT223 OUT 2 IN 3 ADJ 1 TAB 4 CE209 100uF 6 3V CE209 100uF 6 3V 1 2 URST DV33 L213 10uH L213 10uH CE213 22uF 16V CE213 22uF 16V 1 2 R236 22K R236 22K B C E Q20...

Page 22: ...uring procedure Downloading 1 4 FLASH SCK FIG 1 3 4 5 SF_CK SF_DI SF_CS SF_CS SF_DO SD33 SD33 SD33 SD33 16Mb 32Mb S FLASH R314 0 600R EMC R314 0 600R EMC R313 0 R313 0 R312 0 R312 0 R307 10K R307 10K U302 AT26DF161A AT26DF321 U302 AT26DF161A AT26DF321 CS 1 DO 2 WP 3 VSS 4 DI 5 CLK 6 HOLD 7 VCC 8 R315 0 R315 0 R311 10K R311 10K C309 0 1uF C309 0 1uF R310 NC R310 NC R306 10K R306 10K FIG 1 4 6 6 4 5...

Page 23: ...03 150 200 EMC R305 33 150 EMC R305 33 150 EMC RN301 33x4 RN301 33x4 1 8 2 7 3 6 4 5 R304 33 150 EMC R304 33 150 EMC CLK 38 CKE 37 CS 19 RAS 18 CAS 17 WE 16 DQML 15 DQMH 39 NC1 36 NC2 40 VSS 54 VSS 41 VSS 28 2 SDRAM CLOCK 3 TRAY OPEN CLOSE SIGNAL FIG 2 1 7 TRIN DV33 L211 L211 R218 10K R218 10K C234 0 1uF C234 0 1uF SW201 SW212 SW201 SW212 1 4 2 3 SW202 SW212 SW202 SW212 1 4 2 3 FIG 3 1 8 8 7 DCLK ...

Page 24: ...L 14 MGND 13 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 R402 20K R402 20K R460 10K NC R460 10K NC R448 10K R448 10K C414 0 1uF C414 0 1uF C417 68pF C417 68pF R434 0 R434 0 R423 10K R423 10K R429 15 R429 15 4 SLED CONTROL RELATED SIGNAL FI...

Page 25: ...CON24_0 5MM J401 HEADER 24 SMD0 5 TOP 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 L414 10uH L414 10uH 5 LASER POWER CONTROL RELATED SIGNAL 6 SPINDLE CONTROL WAVEFORM FIG 5 1 12 13 14 T SP SP DMSO FOSO F F 7 0 1 1 7 0 1 1 U401AM5898N U401AM5898N EN2 1 GND 35 VCC1 10 VINSL 12 COMP2 3 CT2 2 VOSP 21 PVCC2 7 VOSL 14 MGND 13 PGND1 26 PGND 25 GND 36 COMP1 30 MUTE 33 P...

Page 26: ...898N U401AM5898N 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 C416 68pF C416 68pF 1 2K 1 1 2K 1 C415 000pF C415 000pF 10K 10K R413 680K R413 680K R433 0 R433 0 R432 10K R432 10K R415 15 R415 15 10K 10K 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 27: ...2 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 R430 R430 R416 R416 R402 20K R402 20K C416 68pF C416 68pF R460 10K NC R460 10K NC 1 2K 1 1 2K 1 R448 10K R448 10K 15 00pF 15 00pF R411 R411 C414 0 1uF C414 0 1uF 10K 10K R413 680K R413 680K C417 68pF C417 68pF R433 0 R433 0 R432 10K R432 10K R415 15 R41...

Page 28: ...22 ESD 15pF 56P J510 PJ 3513B 3531 J510 PJ 3513B 3531 1 1 2 2 3 3 4 4 5 5 6 6 C526 56pF 102 EMC C526 56pF 102 EMC 9 1389DE LP VIDEO OUTPUT WAVEFORM 10 AUDIO OUTPUT FROM 1389DE LP FIG 9 1 24 FIG 10 1 25 24 A 5V C504 56pF 102 EMC C504 56pF 102 EMC Q509 BAT54S Q509 BAT54S 3 2 1 R524 10 R524 10 C522 ESD 15pF 56P C522 ESD 15pF 56P J510 PJ 3513B 3531 J510 PJ 3513B 3531 1 1 2 2 3 3 4 4 5 5 6 6 C526 56pF ...

Page 29: ...ON DIAGRAMS Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 1 WIRING CONNECTION DIAGRAM 1 MAIN PCB LCD INVERTOR PCB MAI MAIN PCB CB LCD LCD PCB INVERTOR PCB ...

Page 30: ...3 19 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 31: ... STBY USBP USBM LCD PANEL DQ 0 15 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 NJM4580M 12V PT2303 A 5V SP_L R SP_L R OP OP TROPEN M5V CM1117 VCOMO CPH1 MOD 89P_R G B STHL R STVL R OEH V LNR UND CKV PWRCTL_LCD AV OUT SPK H P QN8000 FM 3 3V SCL SDA BATTERY DC_IN DC DC BLOCK1 DC DC BLOCK2 3 3...

Page 32: ...Charge rge E Ena nable ble Cha Charge rge The Thermi rmist ster Divide Divide DC DC Sen Sense 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 5V Sta Standb ndby LCD Panel Video Audio System Servo A 5 A 5V Bat Bat ter tery y ou out 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 5 A 5V M5V M5V Charge Discharge RCR RCR256 2...

Page 33: ... 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 MTK1389DE LP 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 34: ...OUT GT6312 64MBit SDRAM USB JACK DQ0 DQ15 MA0 MA11 DBA0 1 DCLK DCKE 16 32MBit FLASH MEMORY SF_CS SF_DI SF_CK 27MHz A 5V 5VA REMOCON RECEIVER KEY1 LCD MODE DISPLAY SETUP MENU UP DOWN LEFT RIGHT ENTER Power Charge LED KEY2 AD_KEY 3 3V 3 3V 2 14 2 8 16 64Mbit 1 8V 3 3V MT1389DE LP MPEG POWER PLAY PAUSE REW FF STOP COLOR BRIGHT DVD_K1 DVD_K2 DVD_K3 DVD_K4 DVD_K5 IR RED GREEN SF_DO ...

Page 35: ...al Use Only 5 AV BLOCK DIAGRAM FM_MUTE FM 3 3V SP_R R AOUT_L R 2CH DAC MT1389DE LP 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 12V AV OUT SP_MUTE QN8000 FM 3 3V ML_OUT MR_OUT SDA SCL VOLUME AF2301P 3 3V 3 3V VIDEO ADC GT GT6312 6312 H P JACK SP_L R 5VA ...

Page 36: ...9P_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 RCR2561IC 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 BACKLIGHT BAT_OUT LCD_CTRL MP2359 IC INVERTER POWER...

Page 38: ...7 FB 1206 MT1389LP U201 MT1389L SMD LQFP 128 MT1389LP U201 MT1389L SMD LQFP 128 RFA 1 RFB 2 RFC 3 RFD 4 RFE 5 RFF 6 AVDD18_2 7 AVDD33_1 8 XTALI 9 XTALO 10 AGND33 11 V20 12 V14 13 REXT 14 MDI1 15 MDI2 16 LDO1 17 MDILDO2 18 AVDD33_2 19 DMO 20 FMO 21 TRAY_OPEN 22 TRAY_CLOSE 23 TRO 24 FOO 25 PG GPIO2 26 USB_DP 27 USB_DM 28 VDD33_USB 29 VSS33_USB 30 PAD_VRT 31 VDD18_USB 32 GPIO3 INT 33 GPIO4 34 GPIO6 3...

Page 39: ...RN301 33x4 RN301 33x4 1 8 2 7 3 6 4 5 CE301 47uF 10V CE301 47uF 10V 1 2 C307 0 1uF C307 0 1uF R311 10K R311 10K C308 0 1uF C308 0 1uF C309 0 1uF C309 0 1uF C303 0 1uF C303 0 1uF R308 1K NC R308 1K NC R310 NC R310 NC C302 0 1uF C302 0 1uF R304 33 150 EMC R304 33 150 EMC C310 0 1uF NC C310 0 1uF NC L301 FB 50 L301 FB 50 C311 22P C311 22P U301 HY57V641620 U301 HY57V641620 A0 23 A1 24 A2 25 A3 26 A4 2...

Page 40: ...0 1uF C430 0 1uF CE411 100uF 25V CE411 100uF 25V 1 2 R450 1 2K 1 R450 1 2K 1 R448 10K R448 10K CE416 100uF 10V CE416 100uF 10V 1 2 R405 27K R405 27K C415 1000pF C415 1000pF B C E Q415 2N3904 B C E Q415 2N3904 1 3 2 R455 0 R455 0 R449 150K NC R449 150K NC C402 2200pF NC C402 2200pF NC C419 1000pF C419 1000pF L412 47UH L412 47UH CE410 220uF 10V CE410 220uF 10V 1 2 L408 47uH LH L408 47uH LH R411 1 2K...

Page 41: ... Q514 3906 2 3 1 B C E Q508 2N3904 B C E Q508 2N3904 1 3 2 C513 680pF C513 680pF C511 NC C511 NC R549 8 2K R549 8 2K B C E Q512 2N3904 B C E Q512 2N3904 1 3 2 R539 10k R539 10k L510 FB 600 L510 FB 600 R512 4 7K R512 4 7K R511 100 R511 100 R560 10k R560 10k L513 FB 600 L513 FB 600 PHONEJACK J504 HPJACK PHONE JACK PHONEJACK J504 HPJACK PHONE JACK 2 3 4 5 6 1 PT2303 U502 PT2303 PT2303 U502 PT2303 Shu...

Page 42: ...TP614 R639 0 R639 0 R642 1K R642 1K L602 33UH L602 33UH TP607 TP607 B C E Q605 3906 NC B C E Q605 3906 NC 2 3 1 C618 0 1uF C618 0 1uF D603 LL4148 D603 LL4148 1 2 R625 3 6K R625 3 6K R632 330 R632 330 R608 10K 1 R608 10K 1 R616 51 R616 51 TP611 TP611 TP609 TP609 U603 GT6312A U603 GT6312A RED 3 SAM_U 9 SAM_I 10 GREEN 4 SAM_T 11 OSC 14 SAM_V 12 DO 2 TC_SET 1 VDD 13 FB 15 PWM 5 GND 8 RST 7 PWMT 6 VREF...

Page 43: ... R716 0 J701 CON8_0 8MM J701 CON8_0 8MM 1 2 3 4 5 6 7 8 9 10 CE701 47uF 25V CE701 47uF 25V 1 2 L717 FB 600 L717 FB 600 L708 FB 600 L708 FB 600 R715 0 R715 0 C704 33P C704 33P L714 FB 600 L714 FB 600 L701 FB 50 L701 FB 50 C709 0 1uF C709 0 1uF J704 CON20_0 8MM J704 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 L707 FB 600 L707 FB 600 R714 33 120 EMC R714 33 120 EMC R707 0 R70...

Page 44: ...1k R814 5 1k C806 10uF 10V C806 10uF 10V QN8000 U801 QN8000 QN8000 U801 QN8000 GND 1 GND 2 RFO 3 CEN 4 VCC 5 XTAL1 6 XTAL2 7 GND 8 GND 9 LPF 10 GSL 20 MOD 19 SDA 18 SCL 17 GND 16 SEB 15 AL 14 GND 13 GND 12 AR 11 PAD 21 R801 0 R801 0 R803 NC 1k R803 NC 1k R815 5 1k R815 5 1k L803 220nH L803 220nH R802 1k R802 1k CE801 220uF 6 3V CE801 220uF 6 3V 1 2 C812 102 C812 102 L804 560nH L804 560nH B C E Q80...

Page 45: ...5 BAT54S D5 BAT54S 3 2 1 R5 10K R5 10K C23 104 C23 104 C31 100pF C31 100pF C30 22uF 10V C30 22uF 10V D6 1N5819 D6 1N5819 1 2 R10 0 R10 0 R44 NC R44 NC R39 47K R39 47K C6 4 7u 25uF C6 4 7u 25uF C49 100pF C49 100pF R22 100 75 R22 100 75 C44 10uF 16V C44 10uF 16V TP7 TP7 C40 100pF C40 100pF L3 0R L3 0R C13 104 C13 104 U3 MP1540 U3 MP1540 IN 5 SW 1 EN 4 GND 2 FB 3 C43 20pF C43 20pF R35 NC R35 NC C17 1...

Page 46: ...806 ESD 15pF C806 ESD 15pF C802 ESD 15pF C802 ESD 15pF K812 DISPLAY K812 DISPLAY 1 2 R803 1 5K 1 R803 1 5K 1 C805 ESD 15pF C805 ESD 15pF J801 CON10_1 0MM J801 CON10_1 0MM 10 9 8 7 6 5 4 3 2 1 11 12 K811 MODE K811 MODE 1 2 R802 1 2K 1 R802 1 2K 1 C804 ESD 15pF C804 ESD 15pF K810 COLOR BRIGHT K810 COLOR BRIGHT 1 2 K809 LEFT K809 LEFT 1 2 K808 RIGHT K808 RIGHT 1 2 K807 LCD_MODE K807 LCD_MODE 1 2 K806...

Page 47: ...123 1 87 1 86 124 0 0 125 0 99 0 99 126 0 99 0 99 127 2 41 1 64 128 2 41 1 59 U202 AZ1117H ADJ 1 0 63 0 63 2 1 89 1 89 3 3 34 3 34 4 1 89 1 89 U3 MP1540 1 2 87 2 89 2 0 02 0 02 3 1 26 1 26 4 3 00 3 01 5 3 00 3 01 U301 HY57V641620ETP 1 3 33 3 33 2 1 08 1 13 3 3 33 3 33 4 1 03 1 10 5 1 17 1 01 6 0 0 7 1 52 1 08 8 0 53 1 11 9 3 33 3 33 10 0 50 0 98 MODE PIN NO STOP PLAY 11 0 46 0 88 12 0 0 13 1 29 1 ...

Page 48: ... 11 0 11 Base 0 66 0 66 Q202 Emitter 0 0 Collector 3 32 3 33 Base 0 11 0 11 Q402 Source 5 07 5 03 Drain 5 07 5 01 Gate 0 0 Q407 Emitter 5 07 4 966 Collector 0 0 Base 6 52 6 51 Q408 Source 9 92 9 88 Drain 3 42 3 42 Gate 6 41 6 35 Q409 Emitter 0 0 Collector 1 32 1 29 Base 0 0 Q410 Emitter 9 94 9 88 Collector 5 06 5 07 Base 7 60 4 87 Q411 Emitter 3 32 3 34 Collector 0 0 06 Base 3 32 3 33 Q414 Emitter...

Page 51: ... BOARD TOP VIEW BOTTOM VIEW 3 INVERTER P C BOARD TOP VIEW BOTTOM VIEW 4 KEY P C BOARD TOP VIEW BOTTOM VIEW Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Search results

Summary of Contents for DP372B-N

Reviews:

Related manuals for DP372B-N

Brands by name

Popular brands

LG DP372B-N, Service Manual

Search results

Summary of Contents for DP372B-N

Reviews:

Related manuals for DP372B-N

Brands by name

Popular brands