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LG Flatron L2010P, Service Manual

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LG Flatron L2010P Service Manual Download Page 14

- 14 -

TROUBLESHOOTING GUIDE

1. OUT OF ORDER ON POWER

POWER LAMB OFF STATE

POWER CHECK 

KEY CONTROL CHECK

CONN(J6) CHECK

KEY_CONTROL CHECK

OTHER CIRCUIT CHECK

(REF)
U20 (L4973)

: INPUT(12V), OUTPUT(3.3V)

U34 (IRF7814)

: PIN OUTPUT (12V_MOD)

PIN OUTPUT (12V_INV)

PW166B(U8)

INPUT POWER

CHECK

U20(3.3V)

GND

INVERTER

INPUT POWER

CHECK

U34(12V)

GND

CONN(J1) CHECK

INVERTER CHECK

M29W800AT(U9)

INPUT POWER

CHECK

U20(3.3V)

GND

MODULE

INPUT POWER

CHECK

U34(12V)

GND

CONN (J4) CHECK

MODULD CHECK

Summary of Contents for Flatron L2010P

Page 1: ...MENU SOURC E AUTO LIGHT VIEW SELECT COLOR MONITOR SERVICE MANUAL CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS NO CL 35 FACTORY MODEL LB200A MODEL L2010P LB200A WP ...

Page 2: ...0Hz 1280 x 1024 70Hz 5 POWER SUPPLY 5 1 Power Adaptor Built in Power Input AC 100 240V 50 60Hz 1 0A 5 2 Power Consumption 6 ENVIRONMENT 6 1 Operating Temperature 0 C 50 C 32 F 122 F 6 2 Relative Humidity 10 80 Non condensing 6 3 MTBF 50 000 Hours Min 7 DIMENSIONS with TILT SWIVEL Width 446 0 mm 17 56 Depth 222 5 mm 8 76 Height 447 0 mm 17 6 8 WEIGHT with TILT SWIVEL Net Weight 9 3kg 20 50 lbs Gros...

Page 3: ... T M D S Data3 T M D S Data3 5V Power Ground return for 5V H Sync and V Sync Pin Signal DVI I 1 8 9 17 24 16 C1 C4 C3 C2 C5 16 17 18 19 20 21 22 23 24 C1 C2 C3 C4 C5 Hot Plug Detect T M D S Data0 T M D S Data0 T M D S Data0 5 Shield T M D S Data5 T M D S Data5 T M D S Clock Shield T M D S Clock T M D S Clock Analog Red Analog Green Analog Blue Analog H Sync Analog Ground T M D S Transition Minimiz...

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: ... 53 67 1048 800 32 64 152 V 85 06 631 600 1 3 27 800x600 85Hz H 49 72 1152 832 32 64 224 V 74 55 667 624 1 3 39 832x624 75Hz H 48 36 1344 1024 24 136 160 V 60 0 806 768 3 6 29 1024x768 60Hz H 60 02 1312 1024 16 96 176 V 75 03 800 768 1 3 28 1024x768 75Hz H 68 68 1376 1024 48 96 208 V 85 0 808 768 1 3 36 1024x768 85Hz H 68 68 1456 1152 32 128 144 V 75 06 915 870 3 3 39 1152x870 75Hz H 61 80 1504 11...

Page 6: ...this button to turn the monitor on or off 2 Power Indicator This indicator lights up green when the monitor operates normally If the display is in DPM Energy Saving mode this indicator color change to amber 3 MENU Button Use these button to enter or exit the On Screen Display 4 Buttons Use these button to choose or adjust items in the On Screen Display Bring up contrast and brightness adjustment S...

Page 7: ...ttings for the current screen resolution size display mode The best display mode is 1600 x 1200 60Hz 8 SOURCE Selections SOURCE SELECT Use this button to make DVI digital DVI analog or D sub analog connector active This feature is used when two computers are connected to the display The default setting is D sub DVI DIGITAL DVI ANALOG D SUB ANALOG CONTROLS LOCKED UNLOCKED MENU Button Direct Access ...

Page 8: ...e attached it USB 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 W...

Page 9: ...r Ass y P N 6631T20013P Connector Ass y P N 6631T25008Q Connector Ass y P N 6631T11016A Connector Ass y P N 6631T11016A Connector the Main PCB Ass y and LCD Module J7 J19 CN1B CN1A Connector Ass y P N 6631T25005F Connector Ass y P N 6631T20015Y Connector Ass y P N 6631T20015X ...

Page 10: ...ter THC63LVDM83R 3 3V DEN Analog R G B ROMOE ROMWE DDC SCLA2 Multiplexer MC14066B DDC SDAA DDC SCLA 5VST TXD RXD DATA ADDRESS E PROM 24LC16B SCL SDA ASOG COMPOSITE_SYNC POWER Board 5VS 5VS 1 1 1 12 2 2 2V V V VS S S S INVERTER DC DC 4973D33 GVS GHS Multiplexer 74LVC257 x2 HS_DSUB VS_DSUB ASOG COMPOSITE_ SYNC Buffer 74FCT541CT DATA 3 3V RDN CS0N HS VS_DVI COAST Sync_Sel GREF GREF DEN Sync_Sel RDN C...

Page 11: ...siteInput signal from DVI I Pin J10 and make 8bit digital signal to send Digital signal to PW166B 4 Format Converter This block is composed of PW166B U8 M29W800AT U9 and passive devices Micom in PW166B Scaler U8 processes A D Converter output output of TMDS Receiver PW166B is Format Converter IC that receive Digital signal and output proper frame signal to LCD Module 1600x1200 5 Panel Link Circuit...

Page 12: ...rectifier and a bulk 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 a...

Page 13: ...on 2 Display Color 0 0 pattern at Mode 18 3 Press Menu key Up key Right key in sequence 4 Select WHITE BALANCE ADJUST and press SET KEY 5 After INPUT WHITE PATTERN message Display Color 15 0 pattern at Mode 18 6 No attempt to manually adjust BIAS and Drive data is automatically adjustde and saved to the EEPROM 7 After OK message Press SET KEY 8 Select SERVICE MODE EXIT and Press SET KEY 220 IBM Co...

Page 14: ...ECK OTHER CIRCUIT CHECK REF U20 L4973 INPUT 12V OUTPUT 3 3V U34 IRF7814 PIN OUTPUT 12V_MOD PIN OUTPUT 12V_INV PW166B U8 INPUT POWER CHECK U20 3 3V GND INVERTER INPUT POWER CHECK U34 12V GND CONN J1 CHECK INVERTER CHECK M29W800AT U9 INPUT POWER CHECK U20 3 3V GND MODULE INPUT POWER CHECK U34 12V GND CONN J4 CHECK MODULD CHECK ...

Page 15: ... U8 CHECK THE PERIPHERAL IC OF TMDS TRNSMITTER SIL161B U201 CHECK AD9888 U4 I O SIGNAL CHECK PW166B U8 I O SIGNAL CHECK TMDS TRNSMITTER SIL 161B U201 I O SIGNAL CONN CHECK POWER CHECK OF 74LVC257 U1 CHECK IN FRONT OF U20 3 3V PW166B CHECK OF AD9888 U4 IN FRONT OF PW166B POWER CHECK OF TMDS TRANSMITTER_SIL161 U201 IN FRONT OF SIL161 NO INPUT SIGNAL OUTPUT OUTPUT INPUT NO INPUT SIGNAL NO INPUT SIGNA...

Page 16: ...NSMITTER LVDS83R U401 PERIPHERAL CIRCUIT CHECK TMDS RECEIVER SIL161 U201 IN OUT SIGNAL CHECK PW166B U8 IN OUT SIGNAL CHECK LVDS TRNSMITTER LVDS83R U401 IN OUT SIGNAL CHECK CONN J1 CHECK 74LVC257 U1 POWER CHECK CHECK NODE IN FRONT OF U20 3 3V PW166B POWER POWER CHECK TMDS TRANSMITTER_SIL161B U201 POWER CHECK IN FRONT OF SIL161B U201 NO INPUT SIGNAL OUTPUT OUTPUT INPUT INPUT NO INPUT SIGNAL NO SIGNA...

Page 17: ...10 R27 R148 R219 R208 R138 RA5 C31 RA6 100 C14 U4 110 R46 120 R47 C36 C32 C40 C2 C16 C15 1 R51 C41 C38 C219 L1 D10 U3 R43 L34 D8 R75 C108 J17 SOLDERING DIRECTION C52 C51 L21 R97 R23 R7 X3 RA24 RA23 6 7 8 9 10 11 R221 R122 R120 R119 R220 RA4 R215 R2 C115 RA3 RA2 R45 R44 R3 U1 L31 C177 C176 D26 R71 C89 R146 C54 C53 U411 C413 RA22 RA21 12 13 14 15 16 17 L210 R48 U5 R161 R49 R10 R9 C56 C153 L23 L24 R1...

Page 18: ...2 MAIN BOARD Solder Side C169 C151 C139 C168 C134 C160 C149 C166 C148 C170 C167 C165 C164 C157 C152 C133 C162 C161 C163 C135 C113 C112 C111 C110 ...

Page 19: ...3 POWER BOARD Component Side 4 POWER BOARD Solder Side ...

Page 20: ...7 C31 R37 U2 C9 L16 R1 R9 J2 C8 R40 R19 X1 C28 C3 U1 C2 C1 L1 L2 C27 R34 R35 C42 L5 ZD1 J3 C43 L4 J1 ZD4 5 CONTROL BOARD 3 P01 POWER R3 SW8 R2 Q1 R1 LED1 ZD2 ZD1 ZD3 SELECT R19 SW6 Q14 R17 R21 Q12 RIGHT SW4 ZD6 LEFT R13 SW2 Q10 R26 R15 ZD10 Q18 DOWN SW10 UP ZD7 R24 SW9 Q17 ZD11 R22 R25 Q15 MENU SW7 ZD8 SOURCE R18 SW5 Q13 R16 R20 SW3 ZD9 Q11 AUTO C2 C3 ZD5 R14 ZD4 R12 L1 C1 Q9 SW1 LIGHTVIEW U1 J1 ...

Page 21: ...5 1 25 26 27 6 2 9 12 11 10 13 8 7 b a a 3 15 c 4 14 16 18 17 20 19 21 24 23 22 EXPLODED VIEW ...

Page 22: ...LY FRAME LB200A INVERTER ASSEMBLY ALPS KUBNKM047A 6 LAMP LB200A SHARP PWB PCB ASSEMBLY POWER LB200A POWER TOTAL BRAND CL 35 MAIN TOTAL ASSEMBLY LB200A BRAND CL 35 METAL ASSEMBLY REAR ASSY LB200A PWB PCB ASSEMBLY USB LB200A SUB TOTAL BRAND CL 35 CONNECTOR ASSEMBLY SWITCH GY CONN ASSYP H W 260MM UL 1617 AWG 22 COVER LB200A TOP FRONT POLYACETAL 87074 COVER LB200A STAND FRONT ABS HF350U 87074 COVER LB...

Page 23: ...ON SPECIFICATION C71 0CH8105K611 1UF 50V M 85STD CYL R TP C72 0CC101CK41A 100PF 1608 50V 5 R TP NP0 C73 0CC101CK41A 100PF 1608 50V 5 R TP NP0 C74 0CC180CK41A 18PF 1608 50V 5 R TP NP0 C75 0CK103CK51A 0 01UF 1608 50V 10 R TP B Y5P C76 0CC180CK41A 18PF 1608 50V 5 R TP NP0 C77 0CK474CH94A 0 47UF 1608 25V 80 20 R TP C89 0CC101CK41A 100PF 1608 50V 5 R TP NP0 C90 0CH8476F611 47UF 16V 20 85STD CYL R TP C9...

Page 24: ... KEC SOT 23 80V 300M D21 0DS226009AA KDS226 TP KEC SOT 23 80V 300M D22 0DS226009AA KDS226 TP KEC SOT 23 80V 300M DATE 2002 08 13 S AL LOC NO PART NO DESCRIPTION SPECIFICATION D23 0DS226009AA KDS226 TP KEC SOT 23 80V 300M D24 0DS226009AA KDS226 TP KEC SOT 23 80V 300M D25 0DS226009AA KDS226 TP KEC SOT 23 80V 300M D26 0DS226009AA KDS226 TP KEC SOT 23 80V 300M D27 0DS226009AA KDS226 TP KEC SOT 23 80V ...

Page 25: ...ATE 2002 08 13 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R41 0RJ3301D677 3 3K OHM 1 10 W 5 1608 R TP R42 0RJ1002D677 10K OHM 1 10 W 5 1608 R TP R43 0RJ1002D677 10K OHM 1 10 W 5 1608 R TP R44 0RJ0472D677 47 OHM 1 10 W 5 1608 R TP R45 0RJ0472D677 47 OHM 1 10 W 5 1608 R TP R46 0RJ0472D677 47 OHM 1 10 W 5 1608 R TP R47 0RJ0472D677 47 OHM 1 10 W 5 1608 R TP R48 0RJ0472D677 47 OHM 1 10 W 5 1608 R TP...

Page 26: ... 0RJ0222D677 22 OHM 1 10 W 5 1608 R TP R214 0RJ0222D677 22 OHM 1 10 W 5 1608 R TP R215 0RJ0222D677 22 OHM 1 10 W 5 1608 R TP R216 0RJ0000D677 0 OHM 1 10 W 5 1608 R TP DATE 2002 08 13 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R218 0RJ1002D677 10K OHM 1 10 W 5 1608 R TP R219 0RJ1000D677 100 OHM 1 10 W 5 1608 R TP R220 0RJ4701D677 4 7K OHM 1 10 W 5 1608 R TP R342 0RJ1002D677 10K OHM 1 10 W 5 1608...

Page 27: ...52 R928 0RN4702F409 47K 1 6W 1 TA52 T901 6170TMZ137A EER3016 500 UH V 10PIN LB200A TH901 6322TA080AA TP8D13 DAEWOO 15 110 220 DATE 2002 08 13 S AL LOC NO PART NO DESCRIPTION SPECIFICATION C2 0CH3105H946 1UF 25V 80 20 F Y5V 2012 R C3 0CH3105H946 1UF 25V 80 20 F Y5V 2012 R L1 6210TCE001H HB 1T2012 301JT CERATEC 2012MM LED1 0DLRH0058AA ROHM SML 521MYWT86 R TP GREEN Q1 0TR102009AJ KRC102S NPN SOT 23 T...

Page 28: ...01P HB 1S2012 121JT CERATECH 2012M L15 6210TCE001P HB 1S2012 121JT CERATECH 2012M L16 6210TCE001P HB 1S2012 121JT CERATECH 2012M L17 6210TCE001P HB 1S2012 121JT CERATECH 2012M L18 6210TCE001B HH 1H3216 500JT CERATEC 3216MM L19 6210TCE001P HB 1S2012 121JT CERATECH 2012M L20 6210TCE001P HB 1S2012 121JT CERATECH 2012M R1 0RJ0000D677 0 OHM 1 10 W 5 1608 R TP R8 0RJ1002D677 10K OHM 1 10 W 5 1608 R TP R...

Page 29: ...cale VSOUT SOGOUT HSOUT DATACKB DATACK V DD GND GND GND VDD GND GND GND GND VDD GND DGA0 FILT DGA1 DGA2 DGA3 COAST DGA4 CKEXT DGA5 GND DGA6 V DD DGA7 DGB7 VDD GND DBA0 DBA1 DBA2 DBA3 DBA4 VD REF BYPASS GND GND RAIN0 VD VD RAIN1 RMIDSCV VD GND SOGIN0 GAIN0 VD GND SOGIN1 GAIN1 VD GND BAIN0 VD GND BAIN1 BMIDSCV VD VD GND GND CKINV CLAMP SDA SCL DBA5 DBA6 VDD GND DGB0 DGB1 DGB2 DGB3 DGB4 DGB5 DGB6 AD9...

Page 30: ...K CLAMP COMP SYNC SYNC SEPARATOR SOGOUT HSYNCOUT VSYNCOUT ACTIVITY DETECT POLARITY DETECT POLARITY DETECT ACTIVITY DETECT POLARITY DETECT MUX3 MUX4 CLOCK GENERATOR MUX5 MUX5 ACTIVITY DETECT MUX1 INTEGRATOR 1 S VSYNC0 VSYNC1 MUX5 PIXEL CLOCK VSYNC PLL BLOCK DIAGRAM ...

Page 31: ...und pin SDA I O Bi directional data pin for the I2 C bus serial data interface Schmitt trigger input and open drain output An external pull up resistor must be connected to VCC Typical values for this pull up resistor are 4 7 k 100 kHz and 1 k 400 kHz 3 SCL Input Schmitt trigger input pin for serial clock input 2 WP Input Input pin for hardware write protection control If you tie this pin to VCC t...

Page 32: ... Word Address Pointer Row decoder EEPROM Cell Array 128 x 8 bits 256 x 8 bits 512 x 8 bits HV Generation Timing Control Control Logic Column Decoder Data Register DOUT and ACK SCL WP SDA A0 A1 A2 Figure 2 1 S524A40X10 40X20 40X40 Block Diagram ...

Page 33: ...2 51 QO22 OCK _INV 100 RESERVED 99 PGND 98 PVCC 97 EXT_RES 96 AV CC 95 RXC 94 RXC 93 AGND 92 RX 0 91 RX 0 90 AGND 89 AV CC 88 AGND 87 RX1 86 RX 1 85 AV CC 84 AGND 83 AV CC 82 RX2 81 RX2 80 AGND 79 OVCC 78 QO23 77 OGND 76 DI FFERENTI AL SI GNAL ODD 8 bits RED EV EN 8 bits RED ODD 8 bits GREEN EV EN 8 bits GRE E N ODD 8 bits BL UE EV EN 8 bits BLUE CONFI G PI NS PLL PW R M ANAGE M ENT GPO OUT PUT CL...

Page 34: ...39 38 37 36 35 34 33 32 31 30 29 RS TA5 TA6 GND TB0 TB1 VCC TB2 TB3 GND TB4 TB5 R F TB6 TC0 GND TC1 TC2 TC3 VCC TC4 TC5 TA4 TA3 TA2 GND TA1 TA0 LV DS GND TA TA TB TB LV DS VCC LV DS GND TC TC TCLK TCLK LV DS GND PLL GND PLL VCC PLL GND PDWN CLK IN TC6 GND N C THC63LVDM83R THC63LVDM63R PLL TA TB TC TD TCLK R F PDWN TA0 6 TC0 6 TD0 6 TRANSMITTER 20 to85MHz CMOS TTL 7 7 RS 7 TB0 6 7 INPUTS CLOCK LVDS...

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