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LG Flatron L1510P, Service Manual

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LG Flatron L1510P Service Manual Download Page 15

- 14 -

TROUBLESHOOTING GUIDE

1. NO POWER

NO POWER

(POWER INDICATOR OFF)

CHECK POWER

BOARD, AND FIND

OUT A SHORT POINT 

AS OPENING 

EACH POWER LINE

CHECK J705

VOLTAGE 

PIN5, PIN6 (5V)?

NO

CHECK  5VS LINE

(OPEN CHECK)

CHECK 

U501 PIN 8 Voltage

(5V) ?

NO

NO

NO

CHECK U201 PIN 122

PULSE

CHECK U201

CHECK 3.3V LINE

CHECK X-TAL

IS U201 

PIN114 (3.3V) 

VOLTAGE ?

YES

YES

NO PROBLEM

YES

CHECK KEY CONTROL

CONNECTOR ROUTINE

YES

Summary of Contents for Flatron L1510P

Page 1: ...CE 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 62 MODEL L1510P L1510PM AL R Same model for Service Same looking with new chasis ...

Page 2: ... 1 ...

Page 3: ... 3 3 Operating Frequency Horizontal 30 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 5 2 Operating Humidity 10 80 5 3 MTBF 50 000 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 Heigh...

Page 4: ... 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 5: ...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 6: ...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 display mode The best display mode is 1024x768 PROCESSING AUTO CONFIGURATION This feature lets you easily select the best desired image condition optimized to the environment ambient illumination image types etc DAY Bright ambient il...

Page 7: ...mmended 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 ...

Page 8: ...ant 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 co...

Page 9: ... 8 WIRING DIAGRAM J706 J1 CN2 CN3 J704 J705 Connector Ass y P N 6631T11016C Connector Ass y P N 6631T20008U ...

Page 10: ... w w w w V V V V o o o l l l l t t t t a a a a g g g g e e e e D D D D i i i i f f f f f f f f e e e e r r r r e e e e n n n n t t t t i i i i a a a a l l l l S S S S i i i i g g g g n n n n a a a a l l l l i i i i n n n n g g g g LIPS 5V 5V AC I nput 3 3V Reg Diode KDS184 5V 3 3V 12V DVI D R G B H V Sync Digital Signal U S D S USB HUB D S Bus power USB 3 3V 2 5V 3 3V 2 5V ...

Page 11: ...rpolates input to 1280 X 1024 resolution signal and outputs 8 bit R G B signal to transmitter 2 Power Part This part consists of the one 3 3V regulator and two 2 5V drop diodes to convert power which is provided 12V 5V in Power board 5V is provided for LCD panel and Micom Also 5V is converted 3 3V by regulator and 3 3V is converted 2 5V by drop diode Converted power is provided for IC in the main ...

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: ... is available to LCD Monitor only 1 Port Setup a Copy UserPort sys file to c WINNT system32 drivers folder b Run Userport exe c Remove all default number d Add 300 3FF e Click Start button f Click Exit button 2 EDID Read Write 1 Run WinEDID exe 2 Edit Week of Manufacture Year of Manufacture Serial Number a Input User Info Data b Click Update button c Click Write button ...

Page 14: ...ON 11 Video Signal Generator SERVICE OSD 1 Turn off the power switch at the front side of the display 2 Wait for about 3 seconds and press MENU POWER switch with 1 second interval 3 The SVC OSD menu contains additional menus that the User OSD menu as described below a MODULE To select applied module b NVRAM INIT EEPROM initialize 24C08 c ADC OFFSET The lowest value of input leves sets to digitally...

Page 15: ...UT A SHORT POINT AS OPENING EACH POWER LINE CHECK J705 VOLTAGE PIN5 PIN6 5V NO CHECK 5VS LINE OPEN CHECK CHECK U501 PIN 8 Voltage 5V NO NO NO CHECK U201 PIN 122 PULSE CHECK U201 CHECK 3 3V LINE CHECK X TAL IS U201 PIN114 3 3V VOLTAGE YES YES NO PROBLEM YES CHECK KEY CONTROL CONNECTOR ROUTINE YES ...

Page 16: ...NOT DISPLAYED CHECK LIPS J705 PIN5 PIN6 5V NO 1 CONFIRM BRIGHTNESS OSD CONTRL STATE 2 CHECK MICOM DIM ADJ PORT J705 PIN10 5V NO LIPS 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 17: ...O CHECK U801 U201 PIN122 123 OSCILLATE AS 12MHZ CHECK CONNECTION LINE FROM D SUB TO U501 TROUBLE IN CABLE OR LCD MODULE YES YES YES 3 NO RASTER OSD IS NOT DISPLAYED MST9031B NO RASTER OSD IS NOT DISPLAYED U501 PIN43 IS 48KHz H SYNC PIN44 IS 60Hz V SYNC IS PULSE APPEARED AT SIGNAL PINS AT MODE 12 NO NO ...

Page 18: ... 17 4 TROUBLE IN DPM TROUBLE IN DPM TROUBLE IN U501 CHECK PC PC IS NOT GOING INTO DPM OFF MODE NO CHECK H V SYNC LINE NO YES YES CHECK R756 R760 SYNC CHECK U501 PIN 43 44 SYNC PULSE ...

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

Page 20: ...OTAL SPI FSP017 2PI02 PWB PCB ASSEMBLY POWER ADP 30EP POWER TOTAL DELTA L1510SL LIPS PWB PCB ASSEMBLY POWER L1510SL POWER TOTAL POWERNET PWI1510LG 12V 1 2A 5V 1A LIPS FOR L CHASSIS LPL PWB PCB ASSEMBLY POWER LI1510SL POWER TOTAL SANKEN 3L038WK MAIN TOTAL ASSEMBLY L1510PL BRAND CL 48 METAL SHIELD REAR LB504N CONNECTOR ASSEMBLY 20P H H 100MM UL20276 I FACE CABLE LB500K PWB PCB ASSEMBLY SUB L1510PL C...

Page 21: ...P B Y5 DATE 2004 3 2 S AL LOC NO PART NO DESCRIPTION SPECIFICATION C723 0CK103CK51A 0 01UF 1608 50V 10 R TP B Y5 C724 0CK103CK51A 0 01UF 1608 50V 10 R TP B Y5 C725 0CK103CK51A 0 01UF 1608 50V 10 R TP B Y5 C726 0CK103CK51A 0 01UF 1608 50V 10 R TP B Y5 C727 0CK105CD56A 1UF 1608 10V 10 R TP X7R C728 0CK103CK51A 0 01UF 1608 50V 10 R TP B Y5 C732 0CK103CK51A 0 01UF 1608 50V 10 R TP B Y5 C733 0CK104CK56...

Page 22: ...D677 100 OHM 1 10 W 5 1608 R TP R528 0RJ1000D677 100 OHM 1 10 W 5 1608 R TP R529 0RJ1000D677 100 OHM 1 10 W 5 1608 R TP R530 0RJ1002D677 10K OHM 1 10 W 5 1608 R TP R531 0RJ1000D677 100 OHM 1 10 W 5 1608 R TP R532 0RJ1000D677 100 OHM 1 10 W 5 1608 R TP R534 0RJ0000D677 0 OHM 1 10 W 5 1608 R TP R535 0RJ3301D677 3 3K OHM 1 10 W 5 1608 R TP R537 0RJ3301D677 3 3K OHM 1 10 W 5 1608 R TP R541 0RJ1000D677...

Page 23: ...6A 0 1UF 1608 50V 10 R TP X7R C37 0CH8107F611 100UF 16V M 85STD CYL R TP C38 0CC470CK41A 47PF 1608 50V 5 R TP NP0 C39 0CC470CK41A 47PF 1608 50V 5 R TP NP0 C6 0CH3105F946 1UF 16V Z F 2012 R TP C8 0CC150CK41A 15PF 1608 50V 5 R TP NP0 C9 0CC150CK41A 15PF 1608 50V 5 R TP NP0 D1 0DS181009AA KDS181 TP KEC SOT 23 80V 30 L13 6210TCE001B HH 1H3216 500JT CERATEC 3216M DATE 2004 3 2 S AL LOC NO PART NO DESCR...

Page 24: ...SCHEMATIC DIAGRAM 23 1 MST9031B 11 18 ...

Page 25: ... 24 2 MICOM 11 18 ...

Page 26: ... 25 3 POWER 11 18 ...

Page 27: ... 26 4 CONNECT JACK ...

Page 28: ...Mar 2004 P NO 3828TSL097M Printed in Korea ...

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