LG LB504J Service Manual Download Page 1

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AUTO/SELECT

COLOR MONITOR

SERVICE MANUAL

Website:http://biz.LGservice.com

E-mail:http://www.LGEservice.com/techsup.html

CAUTION

BEFORE SERVICING THE UNIT,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

CHASSIS NO. : CL-32
FACTORY MODEL: LB504J

MODEL: L1510B

(LB504J-GL)

L1510B

(LB504J-GU)

*( ) ID LABEL MODEL No.

Summary of Contents for LB504J

Page 1: ... Website http biz LGservice com E mail http www LGEservice com techsup html CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS NO CL 32 FACTORY MODEL LB504J MODEL L1510B LB504J GL L1510B LB504J GU ID LABEL MODEL No ...

Page 2: ...0 714 Vp p 3 Input Impedance 75 Ω 3 3 Operating Frequency Horizontal 31 61kHz Vertical 56 75Hz 4 POWER SUPPLY 4 1 Power 100 240V 50 60Hz 0 6A 4 2 Power Consumption 5 ENVIRONMENT 5 1 Operating Temperature 10 C 35 C 50 F 95 F Ambient 5 2 Relative Humidity 10 80 Non condensing 5 3 MTBF 50 000 Hours Min Lamp Life 30 000 Hours min 6 DIMENSIONS with TILT SWIVEL Width 356mm 14 01 Depth 229mm 9 01 Height ...

Page 3: ... such as pencil or pen as this may result in damage to the panel Protect the module from the ESD as it may damage the electronic circuit C MOS Make certain that treatment person s body are grounded through wrist band Do not leave the module in high temperature and in areas of high humidity for a long time The module not be exposed to the direct sunlight Avoid contact with water as it may a short c...

Page 4: ...ution 640 x 350 720 x 400 640 x 480 640 x 480 640 x 480 640 x 480 800 x 600 800 x 600 800 x 600 800 x 600 832 x 624 1024 x 768 1024 x 768 1024 x 768 Total Period E 800 449 900 449 800 525 864 525 832 520 840 500 1024 625 1056 628 1040 666 1056 625 1152 667 1344 806 1328 806 1312 800 Video Active Time A 640 350 720 400 640 480 640 480 640 480 640 480 800 600 800 600 800 600 800 600 832 624 1024 768...

Page 5: ...buttons to choose or adjust items in the On Screen Display 4 AUTO SELECT Button Use this button to enter a selection in the On Screen Display MENU AUTO SELECT Power Connector When adjusting your display settings always press the AUTO SELECT button before entering the On Screen Display OSD This will automatically adjust your display image to the ideal settings for the current screen resolution size...

Page 6: ...B connection 1 Connect the upstream port of the Display to the downstream port of the USB compliant PC or another hub using the USB cable Computer must have a USB port 2 Connect the USB compliant peripherals to the downstream ports of the monitor NOTE To activate the USB hub function the monitor must be connected to a USB compliant PC OS or another hub with the USB cable enclosed When connecting t...

Page 7: ...1 CN1 CN2 CN3 Connector Ass y P N 6631T11012V Connector Ass y P N 6631T20008G Connector Ass y P N 6631T20015P Connector Ass y P N 6631T12002H P902 CN1 CN3 J706 J707 705 N2 Connector the Control PCB Ass y and Main PCB Ass y Connector the Main PCB Ass y and Inverter ...

Page 8: ... CN2 CN3 Connector Ass y P N 6631T11011H Connector Ass y P N 6631T20008G Connector Ass y P N 6631T20015P Connector Ass y P N 6631T12002H P902 CN1 CN3 J702 J706 J707 05 2 Connector the Control PCB Ass y and Main PCB Ass y Connector the Main PCB Ass y and Inverter ...

Page 9: ... 9 BLOCK DIAGRAM LG Philips Module ...

Page 10: ...it bus line It makes all devices operated properly 4 Microprocessor U501 let User adjust screen by OSD function 3 LVDS Low Voltage Differential Signal U411 LVDS transmitter U411 delivers digital signal to the receiver inside LCD module by method of abstraction The abstracted signals are pairs of RIN0 RIN1 RIN2 RIN3 and RCLKIN of which voltage swing is 0 5V each When SHUTON pin s input is High tran...

Page 11: ... 11 BLOCK DIAGRAM AUO Module ...

Page 12: ...ower control by sending power down trigger signal to each IC 3 Microprocessor U501 communicates with EEPROM U502 and GMZAN 2 U201 through IIC 2 lines or 4 bit bus line It makes all devices operated properly 4 Microprocessor U501 let User adjust screen by OSD function 3 DC DC block This block is composed of regulators which supplies 2 5V 3 3V and 5V Each regulator s source power is 5VS and 12V from...

Page 13: ...Enter 2 Adjustment for White Balance 1 Display color 0 0 pattern at Mode 13 2 Set External Bright to MAX position and Contrast to MAX Position 3 Select PRESET START BIAS CAL command and Enter 4 No attempt to manually adjust BIAS data is auto matically adjusted and saved to the EEPROM 5 Display color 15 0 pattern at Mode 13 6 Select DRIVE CAL command and Enter 7 Color 1 9300K and Color 2 6500K are ...

Page 14: ...RD AND FIND OUT A SHORT POINT AS OPENING EACH POWER LINE CHECK J707 VOLTAGE PIN1 PIN2 12V PIN4 5V NO CHECK 5VS LINE OPEN CHECK CHECK U805 Voltage 5V NO CHECK IIC LINE CONNECTION U501 U502 CHECK U201 VCC XTAL RESET IS U201 PIN12 VOLTAGE REPEATED AS PULSE SHAPE NO YES YES YES NO PROBLEM NO CHECK KEY CONTROL CONNECTOR ROUTINE ...

Page 15: ...LAYED CHECK POWER BOARD J705 PIN1 12V NO 1 CONFIRM BRIGHTNESS OSD CONTRL STATE 2 CHECK MICOM DIM ADJ PORT J705 PIN7 5V NO REPLACE INVERTER ASS Y CHECK PULSE AS CONTACTING SCOPE PROBE TO CAUTION LABEL CONTACT PROBE TO CAUTION LABEL CAN YOU SEE PULSE AT YOUR SCOPE NO REPLACE CCFL LAMP IN THE LCD MODULE YES YES YES YES ...

Page 16: ...TION LINE FROM U201 TO J402 CHECK U805 CHECK U805 U401 U411 PIN1 3 3V NO NO YES YES YES LG Philips Module YES AUO Module YES YES 3 NO RASTER OSD IS NOT DISPLAYED gmZAN2 NO RASTER OSD IS NOT DISPLAYED U401 U411 PIN31 IS 65MHz CLOCK PIN27 IS 48KHz H SYNC PIN28 IS 60Hz V SYNC PIN30 IS 48KHz DEN IS PULSE APPEARED AT SIGNAL PINS J402 PIN63 IS 65MHz CLOCK PIN66 IS 48KHz H SYNC PIN70 IS 60Hz V SYNC PIN69...

Page 17: ...CHECK PC 2 CHECK SIGNAL CABLE D SUB CONNECTOR LINE CHECK R G B INPUT U201 PIN 87 91 95 NO CHECK H SYNC LINE D SUB U701 MICOM U201 PIN150 CHECK H SYNC INPUT U201 PIN 150 NO YES YES YES NO RASTER OSD IS DISPLAYED 4 NO RASTER OSD IS DISPLAYED gmZAN2 ...

Page 18: ... R722 ZD701 R538 C504 C715 B R539 R526 R527 C819 C835 U805 B R501 R502 R503 R504 R505 R506 R507 20 R207 C232 C225 C230 BA205 BA206 100 R710 R713 R202 R201 C257 R715 C712 U701 R734 ZD702 C731 R717 C716 R525 C505 C506 C509 C826 C820 C262 P N 6870T436A11 DATE 2002 02 07 C261 BA201 MODEL LB500J LGPL HYDIS R508 R509 BA202 BA203 30 C205 BA204 L203 90 C258 C259 C269 A R711 R712 L708 R720 C515 L707 RA501 ...

Page 19: ...R551 R515 R523 R518 R561 C818 C819 C262 C817 R519 R524 R520 R521 R522 C508 C507 C248 BA24 BA7 BA8 5 10 C236 C205 C237 R714 C214 R733 R722 C713 C808 C807 Q701 R716 ZD701 C715 B C504 R526 C835 R807 C261 L201 L202 U805 C R525 BA20 BA6 20 C232 C206 BA5 100 R710 R713 R202 R201 R715 C712 U701 R734 ZD702 C731 R717 C716 C R527 C505 C506 C509 BA19 BA21 BA22 BA23 BA3 30 C204 BA4 90 C257 C258 C259 C269 A R71...

Page 20: ...C27 U1 R40 L17 C31 R9 R1 R37 C9 X1 C8 U2 R2 D1 C6 R25 L16 R8 R41 R19 C32 C18 R26 R31 R28 R30 R35 R34 L18 U3 C38 R21 L20 L13 L19 R22 C39 R32 L5 L4 ZD4 C43 C42 ZD1 C23 ZD12 ZD11 C37 C24 R23 L14 ZD7 L15 C25 R24 J1 J5 J6 ZD8 5 USB BOARD Component Side ...

Page 21: ... 21 EXPLODED VIEW 1 2 1 8 1 10 1 3 4 10 12 a b 14 15 16 22 19 17 18 20 13 11 5 9 6 7 8 21 23 2 ...

Page 22: ...L ASSEMBLY FRAME LB500J LB504J GL METAL ASSEMBLY FRAME MAIN LB500J LB504J GU INVERTER ASSEMBLY SAMSUNG LG1510 LG56AH PWB PCB ASSEMBLY POWER LB500J POWER TOTAL BRAND CL 32 PWB PCB ASSEMBLY MAIN LB504J ALRDG BRAND CL 32 TOTAL LB504J GL PWB PCB ASSEMBLY MAIN LB504J AUO AURDG BRAND CL 32 TOTAL LB504J GU METAL REAR LB500J CONNECTOR ASSEMBLY 20P H H 140MM UL20276 UNIXTAR LB500J LB504J GL CONNECTOR ASSEM...

Page 23: ...611 10UF 16V M 85STD CYL R TP C515 0CC680CK41A 68PF 1608 50V 5 R TP NP0 C516 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R DATE 2002 5 13 S AL LOC NO PART NO DESCRIPTION SPECIFICATION C706 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R LB504J GL C712 0CC101CK41A 100PF 1608 50V 5 R TP NP0 C713 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R C715 0CH8106J611 10UF 35V M 85STD CYL R TP C716 0CE107CH610 100UF SHL SD 25V 20 BU...

Page 24: ...0RJ4701D677 4 7K OHM 1 10 W 5 1608 R TP R507 0RJ1002D677 10K OHM 1 10 W 5 1608 R TP R508 0RJ1002D677 10K OHM 1 10 W 5 1608 R TP R509 0RJ4701D677 4 7K OHM 1 10 W 5 1608 R TP R510 0RJ1000D677 100 OHM 1 10 W 5 1608 R TP R511 0RJ4701D677 4 7K OHM 1 10 W 5 1608 R TP R512 0RJ4701D677 4 7K OHM 1 10 W 5 1608 R TP R513 0RJ1002D677 10K OHM 1 10 W 5 1608 R TP R515 0RJ1000D677 100 OHM 1 10 W 5 1608 R TP R516 ...

Page 25: ...LGEC NON 12V 20A SW5 140 058E SKHV10910B LGEC NON 12V 20A SW6 140 058E SKHV10910B LGEC NON 12V 20A SW7 140 058E SKHV10910B LGEC NON 12V 20A LED1 0DLRH0058AA ROHM SML 521MYWT86 R TP GREE R1 0RJ4701D677 4 7K OHM 1 10 W 5 1608 R TP R2 0RJ4701D677 4 7K OHM 1 10 W 5 1608 R TP R3 0RJ1501D677 1 5K OHM 1 10 W 5 1608 R TP R4 0RJ1501D677 1 5K OHM 1 10 W 5 1608 R TP R5 0RJ3301D677 3 3K OHM 1 10 W 5 1608 R TP...

Page 26: ...2 0IPRPTI007A TUSB2036 TEXAS INSTRUMENT 32 U3 0ITI204200B TPS2042ADR TEXAS INSTRUMENT X1 6202TST001C SX 1 SUNNY SMD 6 0MHZ 50P ZD1 0DZ560009DA UDZ S 5 6B TP ROHM K SOD323 ZD4 0DZ560009DA UDZ S 5 6B TP ROHM K SOD323 ZD7 0DZ560009DA UDZ S 5 6B TP ROHM K SOD323 ZD8 0DZ560009DA UDZ S 5 6B TP ROHM K SOD323 ZD11 0DZ560009DA UDZ S 5 6B TP ROHM K SOD323 ZD12 0DZ560009DA UDZ S 5 6B TP ROHM K SOD323 26 ...

Page 27: ...N 27 MC74HCT14ADR2 14P V A1 Y1 AS A2 Y6 Y2 A5 A3 Y5 Y3 A4 GND Y4 CC 1 2 3 4 5 6 7 14 13 12 11 10 9 8 1 2 A1 Y1 3 4 A2 Y2 5 6 A3 Y3 9 8 A4 Y4 11 10 A5 Y5 13 12 A6 PIN 14 V PIN 7 GND CC Y6 PIN CONFIGURATION BLOCK DIAGRAM ...

Page 28: ...SCHEMATIC DIAGRAM LG Philips Module 28 1 GMZAN2 ...

Page 29: ... 29 2 LVDS ...

Page 30: ... 30 3 MICOM ...

Page 31: ... 31 4 DC DC BLOCK ...

Page 32: ... 32 5 CONNECTOR JACKS ...

Page 33: ... 33 6 KEY PART ...

Page 34: ... 34 7 POWER ...

Page 35: ... 35 8 USB 1 ...

Page 36: ...SCHEMATIC DIAGRAM AUO Module 36 1 GMZAN2 ...

Page 37: ... 37 2 LVDS ...

Page 38: ... 38 3 MICOM ...

Page 39: ... 39 4 DC DC BLOCK ...

Page 40: ... 40 5 CONNECTOR JACKS ...

Page 41: ... 41 6 KEY PART ...

Page 42: ... 42 7 POWER ...

Page 43: ... 43 8 USB 1 ...

Page 44: ...May 2002 P NO 3828TSL083F Printed in Korea ...

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