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LG LB504N-XL, Service Manual

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LG LB504N-XL Service Manual Download Page 40

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Summary of Contents for LB504N-XL

Page 1: ...MENU AUTO SOURCE S ELECT COLOR MONITOR SERVICE MANUAL CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS NO CL 35 FACTORY MODEL LB504N MODEL L1510P LB504N XL ...

Page 2: ...quency Horizontal 31 63kHz 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 40 000 Hours Min Lamp Life 40 000 Hours min 6 DIMENSIONS with TILT SWIVEL Width 356mm 14 01 Depth 229mm 9 01 Height 380mm 14 96 Width 356mm 14 01 Depth 291 4mm 11 47 H...

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: ...een Display 5 SOURCE SELECT Button Use this button to enter a selection in the On Screen Display When selecting input signal press Source Select button before entering the OSD This will change input DVI I D SUB select button The Default setting is D SUB MENU AUTO SOURCE SELECT Power Connector When adjusting your display settings always press the button before entering the On Screen Display OSD Thi...

Page 6: ...ended that in order to maintain an ergonomic and comfortable viewing position the forward tilt angle of the monitor should not exceed 5 degrees Height Range maximun 3 39inch 86 1mm Landscape Portrait You can rotate the panel 90o clockwise For detailed information please refer to the Pivot Sofeware CD provided Adjust the position of the panel in various ways for maximum comfort Tilt Range 24 145 14...

Page 7: ...t 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 the USB cable check that the shape of the connector at the cable side matches the shape at the conn...

Page 8: ...nnector Ass y P N 6631T11012R Connector Ass y P N 6631T20008G Connector Ass y P N 6631T20015P Connector Ass y P N 6631T12002H P902 CN1 CN2 J1 J702 J501 Connector the Control PCB Ass y and Main PCB Ass y Connector the Main PCB Ass y and Inverter ...

Page 9: ...n BA7657 R G B ADC IC AD9884 Scaler IC MX88L250EC X TMDS Receiver IC SIL141B Digital Signal LVDS IC THC63LVDM83R MICOM MTV312 3 3 V Regulator 2 5 V Regulator 5 V Regulator 12V 5VR 5V 3 3V 2 5V 3 3V 2 5V RGB Data 3 3V 12V Inverter 8Pin MODULE 5VR H V Selection Gate H1 V1 H2 V2 H1 V1 H2 V2 H V 3 3V 5VR ...

Page 10: ...ower 5Pin Regulator 44mm 135mm Power PCB Main PCB Control IC Heat sink Heat sink 64mm 120mm 150mm 101mm Power 5Pin Inverter 8Pin Control 6 pin LCD Module 20 pin D Sub DVI I MICOM Scaler ADC R G B Selection ADC TMDS Receiver ...

Page 11: ...tion signal and outputs 8 bit R G B signal to transmitter 3 Display Data Transmitter Part LVDS This part transmit digital signal from the Scaler to the receiver of module 4 Power Part This part consists of the one 5V two 3 3V and one 2 5V regulators to convert power which is provided 12V 5V in Power board 3 3V is provided for LCD panel and inverter 5V is provided for micom and analog selection BA7...

Page 12: ...lk capacitor 3 Energy Transfer This part function is transfer the primary energy to secondary through a power transformer 4 Output rectifier and filter This part function is to make a pulse width modulation control and to provide the driver signal to power switch to adjust the duty cycle during different AC input and output loading condition to achive the dc output stablize and also the over power...

Page 13: ...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 automatically adjus...

Page 14: ...RD AND FIND OUT A SHORT POINT AS OPENING EACH POWER LINE CHECK J704 VOLTAGE PIN1 PIN2 12V PIN4 5V NO CHECK 5VS LINE OPEN CHECK CHECK U806 Voltage 5V NO CHECK IIC LINE CONNECTION U501 U502 CHECK U201 VCC XTAL RESET IS U201 PIN16 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: ... AS 14 3181M NO CHECK U201 OR U401 SOLDERING CONDITION AND CHECK CONNECTION LINE FROM U201 TO U201 or U401 NO TROUBLE IN CABLE OR LCD MODULE J702 S PIN1 3 3V YES YES YES YES 3 WHITE SCREEN OSD IS NOT DISPLAYED WHITE SCREEN OSD IS NOT DISPLAYED U201 PIN 31 IS 65MHz CLOCK PIN 35 IS 48KHz H SYNC PIN 36 IS 60Hz V SYNC IS PULSE APPEARED AT SIGNAL PINS Input 1024x768 60Hz Signal ...

Page 17: ...3V NO 1 CHECK PC 2 CHECK SIGNAL CABLE D SUB DVI I CONNECTOR LINE CHECK R G B INPUT U102 PIN 7 15 22 NO CHECK H SYNC LINE CHECK H SYNC INPUT U102 PIN 40 NO YES YES YES NO RASTER OSD IS DISPLAYED 4 NO RASTER OSD IS DISPLAYED MX88L295EC ...

Page 18: ...5 U104 60 50 R129 C613 D701 D702 C113 C112 C114 D705 C801 C803 U802 C813 C814 R569 R530 R568 C508 R511 R510 R562 R563 R521 RA107 RA108 100 90 C123 C122 RA109 80 C125 C124 RA110 C 70 RA111 RA112 R738 R739 R537 R543 R542 R535 C720 C719 C131 L106 C133 Q504 Q502 C518 U505 R737 R736 C517 ZD705 ZD702 C802 C817 C815 R522 R524 R527 R528 R507 R509 C507 C501 C503 110 C141 60 R147 C193 C194 C130 E C108 C127 ...

Page 19: ...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 3 USB BOARD SW2 LED1 P N 6870T436C11 MODEL LB500J DATA 2002 02 07 SW3 SW6 SW4 R4 R6 SW7 R7 SW5 R5 R3 R2 R1 SW1 ZD2 ZD1 J1 1 2 CONTROL BOARD ...

Page 20: ...4 POWER BOARD Component Side 5 POWER BOARD Solder Side ...

Page 21: ... 21 EXPLODED VIEW 1 3 4 10 12 a b 15 16 17 23 20 18 19 21 13 11 5 9 6 7 8 22 14 24 2 ...

Page 22: ...SEMBLY FRAME MAIN LB504N INVERTER ASSEMBLY SAMSUNG LG1510 LG56AH INVERTER ASSEMBLY NMC 1507 15 1 12V CHOI JEONG GYU PWB PCB ASSEMBLY POWER LB500J POWER TOTAL BRAND CL 32 MAIN TOTAL ASSEMBLY LB504N BRAND CL 35 METAL SHIELD REAR LB504N CONNECTOR ASSEMBLY 20P H H 140MM UL20276 UNIXTAR LB500J PWB PCB ASSEMBLY SUB LB504J CONTROL TOTAL BRAND CL 35 CABLE D SUB UL 2990 9C 7 5 DT 1870MM GRAY 85964 BRAND DM...

Page 23: ...PTION SPECIFICATION C175 0CH3105F946 1UF 16V Z F 2012 R TP C177 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R C181 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R C188 0CC101CK41A 100PF 1608 50V 5 R TP NP0 C189 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R C190 0CK103CK51A 0 01UF 1608 50V 10 R TP B Y C191 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R C192 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R C193 0CK104CK56A 0 1UF 1608 50V 1...

Page 24: ...15 0DS226009AA KDS226 TP KEC SOT 23 80V 30 D716 0DS226009AA KDS226 TP KEC SOT 23 80V 30 D717 0DS226009AA KDS226 TP KEC SOT 23 80V 30 D718 0DS226009AA KDS226 TP KEC SOT 23 80V 30 DATE 2002 6 17 S AL LOC NO PART NO DESCRIPTION SPECIFICATION D719 0DS226009AA KDS226 TP KEC SOT 23 80V 30 D903 0DRGS00281A MBRF10H100CT GENERAL SEMICON D906 0DR206000AA MBRF2060CT BK G I ITO220 60V ZD501 0DZ910009FE UDZS 9...

Page 25: ...M 1 10 W 5 1608 R TP DATE 2002 6 17 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R510 0RJ4701D477 4 7K OHM 1 10 W 1 1608 R TP R511 0RJ4701D477 4 7K OHM 1 10 W 1 1608 R TP R512 0RJ4701D477 4 7K OHM 1 10 W 1 1608 R TP R513 0RJ4701D477 4 7K OHM 1 10 W 1 1608 R TP R514 0RJ4701D477 4 7K OHM 1 10 W 1 1608 R TP R515 0RJ1000D677 100 OHM 1 10 W 5 1608 R TP R516 0RJ3301D677 3 3K OHM 1 10 W 5 1608 R TP R517...

Page 26: ... RA202 0RHZTCZ001A 100 OHM 1 16 W 5 3215 R TP RA203 0RHZTCZ001A 100 OHM 1 16 W 5 3215 R TP RA204 0RHZTCZ001A 100 OHM 1 16 W 5 3215 R TP RA205 0RHZTCZ001A 100 OHM 1 16 W 5 3215 R TP RA206 0RHZTCZ001A 100 OHM 1 16 W 5 3215 R TP DATE 2002 6 17 S AL LOC NO PART NO DESCRIPTION SPECIFICATION X201 6202TST001A SX 1 SUNNY SMS 14 31818MHZ X501 6202TST003D HC 49 SM5H KONY CHIP 12 MHZ BD901 0DD260000BE D2SB60...

Page 27: ... 6210TCE001P HB 1S2012 121JT CERATECH 201 L18 6210TCE001B HH 1H3216 500JT CERATEC 3216 L19 6210TCE001P HB 1S2012 121JT CERATECH 201 L20 6210TCE001P HB 1S2012 121JT CERATECH 201 R1 0RJ0000D677 0 OHM 1 10 W 5 1608 R TP R2 0RJ1001D677 1K OHM 1 10 W 5 1608 R TP R8 0RJ1002D677 10K OHM 1 10 W 5 1608 R TP R9 0RJ1501D677 1 5K OHM 1 10 W 5 1608 R TP R19 0RJ1502D677 15K OHM 1 10 W 5 1608 R TP R21 0RJ0222D67...

Page 28: ...NA8 PIXINA9 PIXINA10 PIXINA11 GND PIXINA12 PIXINA13 PIXINA14 PIXINA15 VDDP PIXINA16 PIXINA17 PIXINA18 PIXINA19 PIXINA20 PIXINA21 PIXINA22 PIXINA23 VDD BB7 BB6 BB5 BB4 BB3 BB2 BB1 BB0 GNDP GB7 GB6 GB5 GB4 VDDP GB3 GB2 GB1 GB0 RB7 RB6 RB5 RB4 RB3 RB2 RB1 RB0 GND GNDP LCKA VDDP LCKB GNDP LHSYNC LVSYNC LDTG BA7 GNDP DCLKA GND BUSTYPE1 NC VDDP AVDD2 AVDD1 XI XO AGND1 AGND2 GNDP DDE GNDP HSYNC2 CLAMP VS...

Page 29: ...Input Data for 1 pixel clock mode 18 bit Odd Data for 2 pixel clock mode 8 bit Channel 2 Data 1 pixel clock 6 bit Odd Channel 0 Data 2 pixel clock 6 bit EVEN Channel 0 Data 2 pixel clock 6 bit Odd Channel 1 Data 2 pixel clock 6 bit Odd Channel 2 Data 2 pixel clock 6 bit Even Channel 2 Data 2 pixel clock 6 bit Even Channel 1 Data 2 pixel clock 8 bit Channel 1 Data 1 pixel clock 8 bit Channel 0 Data...

Page 30: ...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 SN54F86 SN74F86 1A Vcc 4B 4A 4Y 3B 3A 3Y 1B 1Y 2A 2B 2Y GND 1A 1 2 3 6 8 11 4 5 9 10 12 13 1Y 2Y 3Y 4Y 1B 2A 2B 3A 3B 4A 4B 1 TOP VIEW ...

Page 31: ... 31 74F08 1 2 3 4 5 6 7 D0a D0b Q0 D1a D1b Q1 GND 14 13 12 11 10 9 8 Vcc D3b D3a Q3 D2b D2a Q2 1 2 4 5 9 10 12 13 3 Q0 Q1 Q2 Q3 D0a D0b D1a D1b D2a D2b D3a D4b 6 8 11 TOP VIEW Vcc Pin 14 GND Pin 7 ...

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