LG Flatron LB700K Service Manual Download Page 19

Page: 19 / 40

PRINTED CIRCUIT BOARD

- 19 -

1. MAIN BOARD (Component Side)

J710

C734

C731

C732

C733

C729

C730

C801

R202

J705

R249

Q701

R741

R740

R129

R122

D704

J706

C413

R407

C401

R402

R401

R403

R405

R404

R745

R747

R742

R748

U803

R744

R743

C802

R267

R285

R284

R265

R266

R286

R248

R776

R777

R782

Q702

Q103

R778

R779

R783

Q102

C106

C107

R131

R130

D703

D702

C114

100

R210

R208

R214

R272

R262

R276

R260

R802

R706

R287

R288

Q203

R277

R251

R201

R253

U201

Q202

R160

U107

U207

R132

R133

C118

D701

ZD706

C116

R811

R812

R813

R814

R819

R815

R816

R817

R818

R820

R211

R209

R207

R215
R216
R217
R250

C207

C807

C806

R206

R275

Q201

R205

R263

R264

C232

R252

R752

ZD710

R161

R170

R753

Q104

R172

R171

U106

U108

ZD707

C112

J704

C817

C819

L823

U401

Q204

R269

R270

U205

R242

R243

R244
R292

Q108

R246

R247

R240

R241

C178

U702

D712

ZD711

R767

ZD704

ZD703

R408

R406

RA210

RA209

RA211

R290

200

C211

C280

R227

R228

R278

R291

ZD708

ZD709

R766

R765

C110

D714

D716

U802

R810

C860

R409

C408

RA206

RA208

RA207

U203

190

180

C210

C204

C281

C282

R225

R226

R224

R223

C108

R718

D738

D739

R809

C818

C410

MODEL:LB700K

U801

P/N :6870T552A10

DATE :2002.09.10

RA204

RA203

RA205

170

C125

R770

R771

R772

R773

R774

R775

D735

D737

R719

D734

D736

C840

R807

L824

R825

L811

R801

RA200

RA202

RA201

100

120

110

140

130

150

C202

R268

160

L101

C128

U701

C702

C130

R151

D733

D732

ZD701

C845

J702

R746

C706

C808

C811

C809

R800

R219
R220
R289

C810

R221
R229

R230

R231

R232

R233

C201

U110

U109

C161

C177

R153

ZD702

ZD705

J708

C813

C812

C285

R280

R281

R297

R298

R299

X201

C160

Summary of Contents for Flatron LB700K

Page 1: ...UAL 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 42 FACTORY MODEL LB700K MODEL L1710B LB700K GU L1710B LB700K GD ID LABEL MODEL No ...

Page 2: ...1kHz Vertical 56 85Hz 4 Max Resolution Analog 1280 x 1024 75Hz DVI Analog Digital 1280 x 1024 60Hz 5 POWER SUPPLY 5 1 Power AC 100 240V 50 60Hz 1 0A 5 2 Power Consumption 6 ENVIRONMENT 6 1 Operating Temperature 10 C 35 C 50 F 95 F Ambient 6 2 Relative Humidity 10 80 Non condensing 6 3 MTBF 50 000 Hours Min 7 DIMENSIONS with TILT SWIVEL Width 370 mm 14 57 Depth 222 5 mm 8 76 Height 421 mm 16 57 8 W...

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: ...V 60 0 806 768 3 6 29 H 60 123 1312 1024 16 96 176 V 75 029 800 768 1 3 28 H 68 681 1456 1152 32 128 144 V 75 062 915 870 3 3 39 H 61 805 1504 1152 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 25 175 28 321 25 175 31 5 40 0 49 5 57 283 65 0 78 75 100 0 92 ...

Page 6: ... 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 Use this button to scanning auto adjust 6 SOURCE Button Use this button to make Dsub or DVI connector active Th...

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: ...n Board LCD Module Control Board CN1 CN3 J702 J705 J710 CN2 J1 8 WIRING DIAGRAM AU Module Connector Ass y P N 6631T12002L Connector Ass y P N 6631T25008V Connector Ass y P N 6631T11012Q Connector Ass y P N 6631T12002M ...

Page 9: ...oard LCD Module Control Board CN1 J702 J705 J710 CN3 CN2 CN4 CN5 J1 WIRING DIAGRAM Hydis Module Connector Ass y P N 6631T12002L Connector Ass y P N 6631T25008V Connector Ass y P N 6631T11012Q Connector Ass y P N 6631T12002M ...

Page 10: ... 10 BLOCK DIAGRAM ...

Page 11: ...M IC which stores program data Reset IC The Scaler gets the video signal converted analog to digital interpolates input to1280 X 1024 resolution signal and outputs R G B signal to transmitter The controlled data of each modes and user setting is stored in EEPROM Especially Micom pre amp ADC Video controller are merged to one chip Gm5120 by Genesis 3 Display Data Transmitter Part This part transmit...

Page 12: ...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 also the over p...

Page 13: ...t SXGA 60Hz 2 Select COLOR BIAS CALIBRATION command and Enter 3 No attempt to manually adjust BIAS data is auto matically adjusted and saved to the EEPROM 4 Display Full White pattern at SXGA 60Hz 5 Select GAIN CALIBRATION command and Enter 6 6500K and 9300K are automatically adjusted and saved to the EEPROM 7 Select COLOR PRESET END command and Enter 3 Adjustment for EDID 1 Use this procedure onl...

Page 14: ...TROUBLE IN LIPS POWER CHECK J702 5V VOLTAGE 5V NO NO POWER POWER INDICATOR OFF TROUBLE SOMEWHERE ELSE TROUBLE IN LIPS POWER CHECK J702 INPUT VOLTAGE 12V NO TROUBLE IN U203 or X201 NO YES YES YES CHECK U203 s PIN 151 IS THIS PIN OSCILLATED ...

Page 15: ...ECK J705 PIN 28 29 30 5V NO NO RASTER TROUBLE IN LIPS CHECK J702 PIN 1 2 5 6 12V 5V NO TROUBLE IN U801 CHECK U801 3 3V NO TROUBLE IN U201 CHECK U201 GM5120 NO TROUBLE IN U201 NO YES YES YES YES CHECK L201 L202 L203 R234 R235 R237 PULSE ...

Page 16: ...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 H PULSE CHECK U401 PIN 10 PULSE CHECK L236 PULSE ...

Page 17: ... 17 3 NO CLOCK CLOCK GENERATOR NO DOT CLOCK TROUBLE IN X201 CHECK X201 20MHz NO TROUBLE IN U201 CHECK R237 CLOCK NO YES YES ...

Page 18: ...IN DPM TROUBLE IN DPM TROUBLE IN PC CHECK PC PC IS NOT GOING INTO DPM OFF MODE NO TROUBLE IN X201 NO TROUBLE IN SIGNAL CABLE NO YES YES YES CHECK U203 PIN 152 WAVEFORM 20MHz CHECK R711 R712 SYNC CHECK U203 PIN 44 0V ...

Page 19: ...753 Q104 R172 R171 U106 U108 ZD707 C112 J704 C817 C819 L823 60 70 U401 1 Q204 R269 R270 U205 50 40 30 20 R242 R243 10 R244 R292 1 Q108 R246 R247 R240 R241 C178 U702 D712 ZD711 R767 ZD704 ZD703 R408 R406 RA210 RA209 RA211 60 R290 200 C211 C280 R227 R228 R278 R291 ZD708 ZD709 R766 R765 C110 D714 D716 U802 R810 C860 R409 C408 RA206 RA208 RA207 80 70 U203 190 180 C210 C204 C281 C282 R225 R226 R224 R22...

Page 20: ...06 R218 C214 C245 C247 C244 C246 R142 C113 C111 C120 R711 D709 R734 R733 R712 C215 C227 R239 C235 C234 R135 R140 R761 R768 R729 D723 C209 R234 C217 C218 C219 C228 C229 C237 C236 C238 C124 C109 R150 R760 R769 D724 C212 C213 R236 R235 R237 C230 C284 C283 R282 C241 C240 C239 C727 D722 D721 C221 C216 C222 C220 R283 C224 C225 C223 C226 C233 C242 C728 R732 R726 R727 D718 D720 D717 D719 C231 R702 D711 ...

Page 21: ... 21 3 ADAPTER BOARD Component Side 4 ADAPTER BOARD Solder Side To apply the AU Module ...

Page 22: ... 22 5 ADAPTER BOARD Component Side 6 ADAPTER BOARD Solder Side To apply the HYDIS Module ...

Page 23: ... R21 C24 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 7 CONTROL BOARD SW8 LED1 A G C6 SW7 SW6 C5 SW5 SW4 SW3 C3 SW2 SW1 C1 C2 C4 J1 ...

Page 24: ... 24 EXPLODED VIEW 1 2 4 7 3 10 12 11 5 6 9 8 13 14 17 18 15 16 f e d c b a ...

Page 25: ...B700K_HYDIS_CKD LB700K GD METAL ASSEMBLY FRAME LB700K_AU CKD LGEWA LB700K GU ADAPTER AC DC PWI1504FG A 5V 12A 1A 1 2A LIPS FOR HYDIS LB700K LB700K GD ADAPTER AC DC PWI1504FG 5V 12A 1A 1 2A POWERNET LIPS FOR LB700K LB700K GU PWB PCB ASSEMBLY MAIN LB700K ALRDG BRAND CL 42 TOTAL LB700K GD PWB PCB ASSEMBLY MAIN LB700K PUEUGW BRAND CL 42 TOTAL LB700K GU CONNECTOR ASSEMBLY 30P H H 150MM UL20276 PANEL LI...

Page 26: ...PART NO DESCRIPTION SPECIFICATION C231 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R C232 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R C233 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R C234 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R C235 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R C236 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R C237 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R C238 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R C239 0CK104CK5...

Page 27: ...02B S524A40X21 SCT0 SAMSUNG ELECT U801 0IRH033200A BA033FP E2 MOLD 3 TP REGULATOR U802 0TFFC80009A FAIRCHILD FDC6326L R TP SOT 6 U803 0IPMGFA003B RC1117S 2 5 FAIRCHILD SOT 223 DATE 2002 10 17 S AL LOC NO PART NO DESCRIPTION SPECIFICATION L101 6210TCE001G HH 1M3216 501 CERATEC 3216MM R L811 6210TCE001G HH 1M3216 501 CERATEC 3216MM R L823 6210TCE001Z HH 1M2012 600JT CERATEC R TP C L824 6210TCE001G H...

Page 28: ...677 10K OHM 1 10 W 5 1608 R TP R743 0RJ1002D677 10K OHM 1 10 W 5 1608 R TP R744 0RJ1002D677 10K OHM 1 10 W 5 1608 R TP R745 0RJ1002D677 10K OHM 1 10 W 5 1608 R TP R746 0RH0000D622 0 1 10W P TYPE TAPPING R747 0RJ1002D677 10K OHM 1 10 W 5 1608 R TP DATE 2002 10 17 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R748 0RJ1002D677 10K OHM 1 10 W 5 1608 R TP R752 0RJ1001D677 1K OHM 1 10 W 5 1608 R TP R753...

Page 29: ... CERATECH 2012M L18 6210TCE001B HH 1H3216 500JT CERATEC 3216MM L19 6210TCE001P HB 1S2012 121JT CERATECH 2012M L20 6210TCE001P HB 1S2012 121JT CERATECH 2012M L4 6210TCE001P HB 1S2012 121JT CERATECH 2012M L5 6210TCE001P HB 1S2012 121JT CERATECH 2012M R1 0RJ0000D677 0 OHM 1 10 W 5 1608 R TP R2 0RJ1001D677 1K OHM 1 10 W 5 1608 R TP R19 0RJ1502D677 15K OHM 1 10 W 5 1608 R TP R21 0RJ0222D677 22 OHM 1 10...

Page 30: ...SCHEMATIC DIAGRAM 30 1 GM5120 ...

Page 31: ... 31 2 LVDS ...

Page 32: ... 32 3 DC DC ...

Page 33: ... 33 4 CONNECTOR ...

Page 34: ... 34 5 INPUT SWITCHING ...

Page 35: ... 35 6 CONTROL KEY ...

Page 36: ... 36 7 USB ...

Page 37: ... 37 8 ADAPTER AU Module ...

Page 38: ... 38 9 INVERTER AU Module ...

Page 39: ... 39 10 ADAPTER HYDIS Module ...

Page 40: ... 40 11 INVERTER HYDIS Module ...

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Summary of Contents for Flatron LB700K

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