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LG FLATRON LB800H-UL, Service Manual

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LG FLATRON LB800H-UL Service Manual Download Page 3

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Signal Connector Pin Assignment

Pin           Signal (DVI-I)

1
2
3
4
5
6
7
8
9

10
11
12
13
14
15

T. M. D. S. Data2-

T. M. D. S. Data2+

T. M. D. S. Data2/4 Shield

T. M. D. S. Data4-

T. M. D. S. Data4+

DDC Clock

DDC Data

Analog Vertical Sync.

T. M. D. S. Data1-

T. M. D. S. Data1+

T. M. D. S. Data1/3 Shield

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 Minimized Differential Signaling)

• DVI-I Connector (Digital/Analog)

Summary of Contents for FLATRON LB800H-UL

Page 1: ...RVICE 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 29 FACTORY MODEL LB800H MODEL L1810B LB800H UL ID LABEL MODEL No ...

Page 2: ...WER SUPPLY 4 1 Power Adaptor Built in Power Input AC 100 240V 50 60Hz 1 0A 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 6 DIMENSIONS with TILT SWIVEL Width 406 mm 15 98 Depth 223 mm 8 78 Height 431 mm 16 97 7 WEIGHT with TILT SWIVEL Net Weight 7 8kg 17 19 lbs Gross Weight 10 0kg 22 04 ...

Page 3: ...d 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 Minimi...

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: ...768 3 6 29 H 60 123 1312 1024 16 96 176 V 75 029 800 768 1 3 28 H 68 677 1376 1024 48 96 208 V 84 997 808 768 1 3 36 H 68 681 1456 1152 32 128 144 V 75 062 915 870 3 3 39 H 61 805 1504 1125 18 134 200 V 65 96 937 900 2 4 31 H 63 981 1688 1280 48 112 248 V 60 02 1066 1024 1 3 38 H 79 976 1688 1280 16 144 248 V 75 035 1066 1024 1 3 38 Mode H V Sort 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 25 175 28 32...

Page 6: ... display is in DPM Energy Saving mode this indicator color change to amber 3 MENU Button Use these buttons to enter or exit the On Screen Display 4 Button Use these buttons to choose or adjust items in the On Screen Display 5 AUTO SELECT Button Use this button to enter a selection in the On Screen Display 6 SOURCE Button Use this button to make Dsub or DVI connector active This feature is used whe...

Page 7: ...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 8: ...FRAME J702 J801 J705 P902 J710 CN7 CN3 CN2 CN1 CN6 CN5 CN4 CN_C01 CN301 CN_C02 8 WIRING DIAGRAM Connector Ass y P N 6631T11012P Connector Ass y P N 6631T25008Q Connector Ass y P N 6631T20008U Connector Ass y P N 6631T20015R ...

Page 9: ...VDS Low Voltage Differential Signaling Data 48 Bit Address Inverte r CTL Module CTL R G B Inverter Digital Signal 3 3V Reg DVDD 3 3V AVD D 3 3V 12V Po we r CTL V Sync 12V 2 5V Reg DVDD2 5V AVD D2 5V 3 3V Reg PVDD 3 3V 3 3 VM 5V 5V DVI Analog Signal R G B H Sync B V Sync B BA7657 Video Switch R G B 5V H V Sync Hsync Switch A or B H Sync A H Sy nc H Sync B 3 3 VM Power Board 12V 5V BLOCK DIAGRAM ...

Page 10: ...resolution signal and outputs 8 bit R G B signal to transmitter Especially pre amp ADC Video controller are merged to one chip Gm5020 by Genesis Also FRC is separate 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 5 regulators to convert power which is provided 12V 5V i...

Page 11: ...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 12: ...ode 15 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 15 6 Select DRIVE CAL command and Enter 7 5800K and 9300K are automatically adjusted and saved to the EEPROM 8 Select PRESET EXIT command and Enter...

Page 13: ...UBLE IN BULT IN POWER CHECK J801 5VST VOLTAGE 5V NO NO POWER POWER INDICATOR OFF TROUBLE SOMEWHERE ELSE TROUBLE IN BULT IN POWER CHECK J801 INPUT VOLTAGE 12V NO TROUBLE IN U501 or X501 NO YES YES YES CHECK U501 s PIN 6 IS THIS PIN OSCILLATED ...

Page 14: ...RASTER TROUBLE IN POWER ADATER or L703 L704 CHECK J702 PIN 1 2 3 12V NO TROUBLE IN X501 CHECK X501 H PULSE NO TROUBLE IN U201 CHECK U201 GM5020 NO TROUBLE IN U201 NO TROUBLE IN U201 CHECK U301 U302 U303 PIN 35 MEMORYCLK NO YES YES YES YES YES CHECK L201 L202 L203 PULSE ...

Page 15: ...OT CLOCK PATTERN NO TROUBLE IN U201 NO CHECK DVS PATTERN NO CHECK DHS PATTERN NO YES YES YES YES YES TROUBLE IN LCD MODULE CHECK U401 PIN 8 V PULSE CHECK U401 PIN 7 V PULSE CHECK U401 PIN 10 PULSE CHECK L204 PULSE ...

Page 16: ... 16 3 NO CLOCK CLOCK GENERATOR NO DOT CLOCK TROUBLE IN X201 CHECK X201 24MHz NO TROUBLE IN U201 CHECK L201 CLOCK NO YES YES ...

Page 17: ...BLE IN DPM TROUBLE IN DPM TROUBLE IN PC CHECK PC PC IS NOT GOING INTO DPM OFF MODE NO TROUBLE IN X501 NO TROUBLE IN SIGNAL CABLE NO YES YES YES CHECK U501 PIN 6 WAVEFORM 24MHz CHECK R233 R234 CHECK U501 PIN 11 0V ...

Page 18: ...A206 CA205 CA204 RA222 RA224 C271 R235 L K J H G F C548 C117 C118 C116 R704 C850 C844 U821 RA208 RA210 RA206 RA204 RA202 20 U201 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 C270 E D C B A 1 C278 C279 R220 R221 C258 R223 R145 U509 C119 R703 C845 C834 R582 R545 C201 C202 C203 C206 C205 C204 C276 C280 R222 R224 C259 C260 C261 J704 L820 L810 C531 U503 C517 C516 R581 R542 R543 R544 R508 R510 MODEL LB...

Page 19: ...39 C264 D702 D703 R712 C715 C714 C236 L203 L204 C235 C233 C237 R202 C228 C275 C269 C273 R240 D701 R150 D731 R714 R715 C514 R511 R524 C515 C257 C238 C272 C274 R139 R137 R138 R239 R140 R141 R142 R147 R760 R769 R716 D730 C504 C505 R512 R513 R527 R526 R525 C507 C506 C823 C829 C827 C131 R135 C120 D715 D712 R713 R729 R535 R539 R536 R538 R537 R564 C519 R505 C508 R531 R580 C832 C824 C830 C826 R154 R155 R1...

Page 20: ... 20 3 POWER BOARD Component Side 4 POWER BOARD Solder Side ...

Page 21: ...4 L13 C23 R32 C39 R31 R28 R30 C38 C37 L18 U3 L4 L5 C42 C43 R19 U2 R8 R25 C6 L16 R26 R41 D1 R34 R35 C32 R2 DATE 2001 11 14 R37 C8 L17 R1 R9 C31 C9 R40 C28 C1 C2 P N 6870T413U11 MODEL LB782F USB X1 C27 U1 5 CONTROL BOARD SW8 A G LED1 R6 R4 SW7 SW6 R8 R3 SW5 R5 R7 SW4 SW3 SW2 SW1 J1 A G R1 R2 C2 C1 ...

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

Page 23: ...SEMBLY SUB LB800H CONTROL TOTAL BRAND CONNECTOR ASSEMBLY 30P H H 100MM UL20276 PANEL LINK LB886F INVERTER ASSEMBLY LG PHILIPS NMC1805 6 LAMP LM886F INVERTER ASSEMBLY ALPS KUBNKM030A 6 LAMP LB886F LI884E METAL ASSEMBLY FRAME MAIN LB886F PWB PCB ASSEMBLY MAIN LB886F ALLVU BRAND CL 29 TOTAL PWB PCB ASSEMBLY POWER LB800H POWER TOTAL BRAND SHIELD REAR LB886F METAL REAR LB800H COVER LB800H STAND TOP HIN...

Page 24: ...000PF 1608 50V 5 R TP NP0 C230 0CH6150K416 15PF 50V J NP0 2012 R TP C231 0CH6680K416 68PF 50V J NP0 2012 R TP C232 0CH6680K416 68PF 50V J NP0 2012 R TP C233 0CH3103K516 10000PF 50V K B 2012 R TP C234 0CH3103K516 10000PF 50V K B 2012 R TP C235 0CH6680K416 68PF 50V J NP0 2012 R TP C236 0CH6680K416 68PF 50V J NP0 2012 R TP C237 0CH3104K566 0 1UF 50V K X 2012 R TP C258 0CH6150K416 15PF 50V J NP0 2012 ...

Page 25: ...D S C835 0CC102CK41A 1000PF 1608 50V 5 R TP NP0 C836 0CK103CK51A 0 01UF 1608 50V 10 R TP B Y5 C840 0CE477EH618 470UF KMG 25V M FL TP 5 C841 0CC102CK41A 1000PF 1608 50V 5 R TP NP0 DATE 2002 02 25 S AL LOC NO PART NO DESCRIPTION SPECIFICATION C842 0CK103CK51A 0 01UF 1608 50V 10 R TP B Y5 C843 0CC102CK41A 1000PF 1608 50V 5 R TP NP0 C844 0CE107WF6DC 100UF MVK 16V 20 R TP SMD S C845 0CE477EH618 470UF K...

Page 26: ...ECIFICATION R139 0RJ1001D677 1K OHM 1 10 W 5 1608 R TP R140 0RJ1003D677 100K OHM 1 10 W 5 1608 R TP R141 0RJ1000D677 100 OHM 1 10 W 5 1608 R TP R142 0RJ1000D677 100 OHM 1 10 W 5 1608 R TP R145 0RJ0222D677 22 OHM 1 10 W 5 1608 R TP R146 0RJ1001D677 1K OHM 1 10 W 5 1608 R TP R147 0RJ4701D677 4 7K OHM 1 10 W 5 1608 R TP R149 0RJ2000D677 200 OHM 1 10 W 5 1608 R TP R150 0RJ0222D677 22 OHM 1 10 W 5 1608...

Page 27: ...10W P TYPE TAPPING R744 0RH0000D622 0 1 10W P TYPE TAPPING R745 0RH0000D622 0 1 10W P TYPE TAPPING R746 0RH0000D622 0 1 10W P TYPE TAPPING R752 0RJ1003D677 100K OHM 1 10 W 5 1608 R TP DATE 2002 02 25 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R753 0RJ4701D677 4 7K OHM 1 10 W 5 1608 R TP R760 0RJ0472D677 47 OHM 1 10 W 5 1608 R TP R761 0RJ0472D677 47 OHM 1 10 W 5 1608 R TP R765 0RJ0752D677 75 OHM...

Page 28: ...3 5 TA52 R925 0RD1002Q609 10K 1 4W 3 5 TA52 DATE 2002 02 25 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R926 0RN0471H609 4 7 OHM 1 2 W 5 TA52 R927 0RD0102A609 10 OHM 1 2 W 7 0 5 TA52 R928 0RD0202Q609 20 1 4W 3 5 TA52 T901 6170TMZ125B EER3016 340UH V 10PIN LB886F TH901 6322TA080AA TP8D13 DAEWOO 15 110 22 C1 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R C2 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R LED1 0DLL...

Page 29: ... 1 10 W 5 1608 R TP R25 0RJ0000D677 0 OHM 1 10 W 5 1608 R TP R26 0RJ1002D677 10K OHM 1 10 W 5 1608 R TP R28 0RJ0222D677 22 OHM 1 10 W 5 1608 R TP R30 0RJ0222D677 22 OHM 1 10 W 5 1608 R TP R31 0RJ1502D677 15K OHM 1 10 W 5 1608 R TP R32 0RJ1502D677 15K OHM 1 10 W 5 1608 R TP R34 0RJ0222D677 22 OHM 1 10 W 5 1608 R TP R35 0RJ0222D677 22 OHM 1 10 W 5 1608 R TP R37 0RJ1501D677 1 5K OHM 1 10 W 5 1608 R T...

Page 30: ...onverter Frame Rate Conversion Control Zoom Shrink Filter Gamma Control Panel I F 48 bits Output Control Output Data Path Timing Control Brightness Contrast Hue Saturation TMDS RX Video YUV 8 bits Digital TMDS Input FUNCTIONAL BLOCK DIAGRAM Frame Buffer SDRAM SGRAM Output to LCD OSC or XTAL Micro controller Video Decoder Anolog RGB Composite S Video DVI gm5020 SYSTEM BLOCK DIAGRAM ...

Page 31: ...ESS BUFFERS COLUMN DECODERS START STOP LOGIC XDEC DATA IN STORAGE HIGH VOLTAGE TIMING CONTROL STATE COUNTERS SLAVE SCL A0 A1 VCC VSS A2 ADDRESS COMPARATORS CONTROL LOGIC ACK E PROM 2 PIN CONFIGURATION DIP Package p SOIX Package J TSSOP Package U BLOCK DIAGRAM PIN FUNCTION Pin Name A0 A1 A2 SDA SCL WP Vcc Vss Function Device Adress Inputs Serial Data Address Serial Clock Write Protect 1 8V to 6 0V ...

Page 32: ...SCHEMATIC DIAGRAM 32 1 GM5020 ...

Page 33: ... 33 2 MEMORY ...

Page 34: ... 34 3 LVDS ...

Page 35: ... 35 4 MICOM ...

Page 36: ... 36 5 DC DC ...

Page 37: ... 37 6 CONNECTOR ...

Page 38: ... 38 7 INPUT SWITCHING ...

Page 39: ... 39 8 CONTROL KEY ...

Page 40: ... 40 9 USB ...

Page 41: ... 41 10 POWER ...

Page 42: ...Feb 2002 P NO 3828TSL082A Printed in Korea ...

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