LG Flatron LM505J, Service Manual

Page 1: ...COLOR MONITOR SERVICE MANUAL CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS NO CL 38 FACTORY MODEL LM505J MODEL L1510M LM505J GL ...

Page 2: ...ting Frequency Horizontal 31 63kHz Automatic Vertical 56 75Hz Automatic 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 360 0mm 14 17 Depth 153 0mm 6 02 Height 359 8mm 14 16 7 WEI...

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: ...tion 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: ...n the On Screen Display Volume Use these buttons to decrease or increase the volume level 4 AUTO SELECT Button Use this button to enter a selection in the On Screen Display Power Connector See front control panel D Sub Signal Connector 5 6 2 3 4 1 37 When adjusting your display settings always press the AUTO SELECT button before entering the On Screen Display OSD This will automatically adjust you...

Page 6: ...XT For viewing letters MOVIE For viewing movies PHOTO For viewing pictures or the photographs USER MODE This function memorizes the manual adjustment Brightness Contrast and Color value on the On Screen Display LIGHT VIEW DAY NIGHT USER MODE TEXT MOVIE PHOTO TEXT MOVIE PHOTO 37 This function allows you to secure the current control settings so that they cannot be inadvertently changed Press and ho...

Page 7: ...CN1 CN2 CN3 P902 J707 J705 J702 J701 J901 J706 J904 Connector Ass y P N 6631T11012R Connector Ass y P N 6631T20008X Connector Ass y P N 6631T20020E Connector Ass y P N 6631T20015E ...

Page 8: ...r Regulat or Regulat or Regulat or KA7805 BA033 BA033 V V V D ST Hsync2 V sync2 Hsyncm Vsyncm 2 5VD RC1171 VD 5VS 12V CON 5P MAIN BLOCK _ _ AD DSCL DSDA LVDS Filter BD SMPS Control IC TOP246 12V 5VS CON 5P POWER BLOCK Headphone Audio In Audio Processor TDA7449 Audio Amp TDA7496L SCL SDA 78M08 8VA 12VA CON 5P 12V GND SCL SDA Audio Mute Audio Mute AUDIO BLOCK U501 12V U201 U502 U402 U701 U803 U802 U...

Page 9: ...nal U402 LVDS transmitter U402 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 transmitter goes to power down mode 4 DC DC block This block is composed of regulators which supplies 2 5V 3 3V and 5V Each regulator s source power is...

Page 10: ...attern 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 automatically adjusted and saved to the EEPROM 8 Select PR...

Page 11: ... 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 12: ...YED 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 13: ...CILLATE AS 20MHz CHECK CONNECTION LINE FROM U201 TO U401 TROUBLE IN CABLE OR LCD MODULE CHECK U802 U401 PIN1 3 3V NO YES YES YES YES 3 NO RASTER OSD IS NOT DISPLAYED gmZAN2 NO RASTER OSD IS NOT DISPLAYED U401 PIN31 IS 65MHz CLOCK PIN27 IS 48KHz H SYNC PIN28 IS 60Hz V SYNC PIN30 IS 48KHz DEN IS PULSE APPEARED AT SIGNAL PINS NO NO ...

Page 14: ...ECK 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 15: ...832 C514 R505 R506 R504 R525 R524 R519 R520 C508 C507 R810 R522 C515 RA502 P N 6870T516A10 MODEL LM505J MAIN U701 R541 R713 R733 R711 R715 C824 100 R201 C214 J703 110 R202 C270 120 L804 C258 1 R508 R507 R537 R528 R529 R509 C709 C516 L703 J706 R521 C711 L705 RA501 R708 U806 D708 R705 D707 C713 D703 R722 Q701 Q702 C201 C202 C207 C203 C209 C208 C821 R209 R210 C827 C269 C259 C257 C256 C254 C255 R208 U...

Page 16: ...W308 SELECT R308 SW307 RIGHT R307 R302 SW306 LEFT SW305 UP R306 ZD302 R305 SW304 DOWN SW303 MENU J301 1 R304 R301 ZD301 SW302 MUTE SW301 R303 LIGHT VIEW P N 6870T516C10 Model LM505J KEY Date 2002 07 10 3 POWER BOARD Component Side 4 POWER BOARD Solder Side ...

Page 17: ...EXPLODED VIEW 9 1 3 11 10 17 a 16 5 6 7 8 2 4 A 4 B 12 13 14 15 ...

Page 18: ...T SWIVEL ASSEMBLY LB500J BASE TILT SWIVEL ASSEMBLY LB500J METAL ASSEMBLY FRAME MAIN LM505J INVERTER ASSEMBLY SAMSUNG LG1510 LG56AH INVERTER ASSEMBLY NMC 1507 15 1 12V CHOI JEONG GYU PWB PCB ASSEMBLY POWER LB500J POWER TOTAL BRAND CL 38 PWB PCB ASSEMBLY SUB LM505J SOUND TOTAL BRAND CL 38 MAIN TOTAL ASSEMBLY LM505J BRAND CL 32 METAL FRAME REAR LM505J CONNECTOR ASSEMBLY 20P H H 120MM UL20276 PANEL LI...

Page 19: ...10PF 1608 50V 5 R TP NP0 C704 0CC100CK41A 10PF 1608 50V 5 R TP NP0 DATE 2002 7 14 S AL LOC NO PART NO DESCRIPTION SPECIFICATION C705 0CC100CK41A 10PF 1608 50V 5 R TP NP0 C706 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R C707 0CC100CK41A 10PF 1608 50V 5 R TP NP0 C712 0CC101CK41A 100PF 1608 50V 5 R TP NP0 C713 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R C715 0CH3105F946 1UF 16V Z F 2012 R TP C716 0CE107CH610 1...

Page 20: ... PART NO DESCRIPTION SPECIFICATION R504 0RJ4701D677 4 7K OHM 1 10 W 5 1608 R TP R505 0RJ1002D677 10K OHM 1 10 W 5 1608 R TP R506 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 0RJ4...

Page 21: ... 2 TA52 R302 0RD4701Q509 4 7K OHM 1 4 W 3 4 2 TA52 R303 0RD1001Q509 1K OHM 1 4 W 3 4 2 TA52 R304 0RD1601Q509 1 6K OHM 1 4 W 3 4 2 TA52 R305 0RD2701Q509 2 7K OHM 1 4 W 3 4 2 TA52 R306 0RD6801Q509 6 8K OHM 1 4 W 3 4 2 TA52 R307 0RD2701Q509 2 7K OHM 1 4 W 3 4 2 TA52 R308 0RD2701Q509 2 7K OHM 1 4 W 3 4 2 TA52 R309 0RD6801Q509 6 8K OHM 1 4 W 3 4 2 TA52 SW301 140 058E SKHV10910B LGEC NON 12V 20A HOR SW3...

Page 22: ...0RJ1000D677 100 OHM 1 10 W 5 1608 R TP R904 0RJ1000D677 100 OHM 1 10 W 5 1608 R TP R905 0RJ1202D677 12K OHM 1 10 W 5 1608 R TP R906 0RJ1000D677 100 OHM 1 10 W 5 1608 R TP R907 0RJ4701D677 4 7K OHM 1 10 W 5 1608 R TP R908 0RJ2001D677 2K OHM 1 10 W 5 1608 R TP R909 0RJ1002D677 10K OHM 1 10 W 5 1608 R TP R910 0RJ4701D677 4 7K OHM 1 10 W 5 1608 R TP R911 0RJ2701D677 2 7K OHM 1 10 W 5 1608 R TP R912 0R...

Page 23: ...P1 1 P1 2 P1 3 P1 4 P3 2 INT0 VSYNC HSYNC DA3 P5 3 DA4 P5 4 DA5 P5 5 DA8 HALFH DA9 HALFV HBLANK P4 1 VBLANK P4 0 DA7 HCLAMP DA6 P5 6 P2 6 DA12 P2 5 DA11 P2 4 DA10 HSCL P3 0 Rxd HSDA P3 1 Txd P2 0 AD0 P2 1 AD1 P1 7 P1 6 P1 5 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 ...

Page 24: ...ose I O ADC Input General purpose I O General purpose I O General purpose Input INTO General purpose I O General purpose I O General purpose I O General purpose I O General purpose I O General purpose I O General purpose I O ADC Input General purpose I O ADC Input Slave IIC data General purpose I O Txd Slave IIC clock General purpose I O Rxd General purpose I O PWM DAC output General purpose I O P...

Page 25: ... PD25 PD24 PD23 PD22 PD21 RVDD2A OSD_DATA2 OSD_DATA1 OSD_DATA0 OSD_CLK OSD_VRFF OSD_HREF CVSS4 MFB0 MFB1 MFB2 MFB3 MFB4 RVDD3A MFB5 MFB6 MFB7 MFB8 HCLK MFB9 IRQ PRESETn HDATA HFS N C ADC_RVDDA RED RED ADC_RGNDA ADC_GVDDA GREEN GREEN ADC_GGNDA ADC_BVDDA BLUE BLUE ADC_BGNDA ADC_VDDA Reserved ADC_GNDA SUB_GNDA ADC_GND1 ADC_VDD1 ADC_GND2 ADC_VDD2 PPWR PBIAS PHS PVS CVSS3 PD0 PD1 PD2 PD3 PD4 PD5 RVDD3 ...

Page 26: ... TFT Panel Clock Generator MPU with EEPROM IRQ HES HCLK HDATA MFBs RESETn OSD CLK OSD HREF OSD VREF R G B 4 12 PDISPE CVSS PHS PVS TCLK OSC ADC_GNS gmZAN2 Core Panel Timing Control On Screen Display Control Analog RGB MCU Triple ADC Scaling Engine Gamma Control CLUT Dother Host interface Clock Recovery Pixel Clock Generator Clock Reference Source Timing Measurement Generation Panel System level Bl...

Page 27: ...T14ADR2 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 ...

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