LG FLATRON Service Manual
LG FLATRON Manual
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- LG FLATRON | Service Manual - Page 1
Website:http://biz.LGservice.com COLOR MONITOR SERVICE MANUAL CHASSIS NO. : LP69G MODEL: M198WA (M198WA-BMH.A**MLP) M228WA (M228WA-BMH.A**MLP) *( ) **Same model for Service CAUTION BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. - LG FLATRON | Service Manual - Page 2
CONTENTS CONTENTS 2 PRECAUTION 3 SPECIFICATION 7 DISASSEMBLY 14 ADJUSTMENT 16 SERVICE OSD 22 TROUBLE SHOOTING 23 BLOCK DIAGRAM 29 EXPLODED VIEW 32 REPLACEMENT PARTS LIST 34 SVC. SHEET -2- - LG FLATRON | Service Manual - Page 3
FOR THE SAFETY-RELATED COMPONENT. • There are some special components used in LCD monitor that are important for safety. These parts are marked on the schematic diagram and the /10W CAUTION Please use only a plastic screwdriver to protect yourself from shock hazard during service operation. -3- - LG FLATRON | Service Manual - Page 4
of contacts in not required. 6. Do not defeat any plug/socket B+ voltage interlocks with which receivers covered by this service manual might be equipped. 7. Do not apply AC power to this instrument and/or any of its electrical assemblies unless all solid-state device heat sinks are correctly - LG FLATRON | Service Manual - Page 5
iron and appropriate tip size and shape that will maintain tip temperature within the range or 500 F to 600 F. 2. Use an appropriate gauge of RMA pliers to insure metal to metal contact then solder each connection. Power Output, Transistor Device Removal/Replacement 1. Heat and remove all solder - LG FLATRON | Service Manual - Page 6
Circuit Board Foil Repair Excessive heat applied to the copper foil of any printed circuit board will weaken the adhesive that bonds the foil to the circuit board causing the foil to separate from or "lift-off" the board. The following guidelines and procedures should be followed whenever this - LG FLATRON | Service Manual - Page 7
SPECIFICATION NOTE : Specifications and others are subject to change without notice for improvement. 1. Application range This specification is applied to 19"/22" Wide Monitor TV used LP69G chassis. 2. Requirement for Test Each part is tested as below without special appointment. 3. Test method - LG FLATRON | Service Manual - Page 8
4.1.2 RGB/DVI No. Item Specification Remark 1 Supported Sync. Type Separate Sync., Digital 2 Operating Video LED Wattage Power S/W On On mode On/On On/On Active Active Blue Blue 60W 50W Max. Typ. Off/On Sleep mode Off Amber 1W On/Off Power S/W Off Off mode - Off Off - LG FLATRON | Service Manual - Page 9
PC 250 Luminance (cd/m2) AV/TV 200 Component White Luminance Uniformity 75 3 Contrast Ratio CR RGB-PC/ AV/TV/ 500 Component 4 CIE Color Coordinates PSM:Dynamic, CSM:Cool Full White (100IRE) At DFC Mode Typ. 3000:1, Min. 2400:1 In RGB-PC input Typ. +0.03 PSM : Dynamic CSM : - LG FLATRON | Service Manual - Page 10
PC 250 Luminance (cd/m2) AV/TV 200 Component White Luminance Uniformity 75 3 Contrast Ratio CR RGB-PC/ AV/TV/ 500 Component 4 CIE Color Coordinates WHITE PSM:Dynamic, CSM:Cool Full White (100IRE) At DFC Mode Typ. 3000:1, Min. 2400:1 In RGB-PC input Typ. +0.03 PSM : Dynamic CSM : - LG FLATRON | Service Manual - Page 11
5. Component Video Input (Y, PB, PR) No Resolution 1. 720*480 2. 720*480 3. 720*576 4. 720*480 5. 720*480 6. 720*576 7. 1280*720 8. 1280*720 9. 1280*720 10. 1920*1080 11. 1920*1080 12. 1920*1080 H-freq(kHz) 15.73 15.75 15.625 31.47 31.50 31.25 44.96 45.00 37.50 33.72 33.75 - LG FLATRON | Service Manual - Page 12
7. RGB input ( DTV ) No Resolution 1. 720*480 2. 720*480 3. 720*576 4. 1280*720 5. 1280*720 6. 1280*720 7. 1920*1080 8. 1920*1080 9. 1920*1080 H-freq(kHz) 31.47 31.50 31.25 37.5 44.96 45.00 33.72 33.75 28.125 8. DVI input (PC)-M198WA No Resolution 1 720*400 2 640*480 3 - LG FLATRON | Service Manual - Page 13
9. DVI input (DTV) No Resolution 1. 720*480 2. 720*480 3. 720*576 4. 1280*720 5. 1280*720 6. 1280*720 7. 1920*1080 8. 1920*1080 9. 1920*1080 H-freq(kHz) 31.47 31.50 31.25 37.5 44.96 45.00 33.72 33.75 28.125 V-freq.(kHz) 59.94 60.00 50.00 50.00 59.94 60.00 59.94 60.00 50.00 - LG FLATRON | Service Manual - Page 14
DISASSEMBLY # 1 # 2 1. Push down slightly to disassembly it. 2. After push the cable management like above fig.(Downward), Disassembly the Cable management with pulling it upward. 3. Disassembly Cable Holder. Push the button. # 3 # 4 Hold the stand base. # 5 Disassembly Stand base. # 6 - LG FLATRON | Service Manual - Page 15
# 7 # 8 Pull base body to separate from set during pressing 2 letches. 1. Remove the screws. 2. Disassembly Hinge Cover. # 9 # 10 Remove the screws. # 11 Disassembly back cover. Pull the connector. - 15 - - LG FLATRON | Service Manual - Page 16
Generator (MSPG-925L or Equivalent), DDC Adjustment Jig equipment, SVC remote controller 3. Main PCB check process * APC - After Manual-Insult, executing APC 3.1. Download 1) Execute ISP program "Mstar ISP Utility" and then click "Config" tab. 2) Set as below, and then click "Auto Detect" and check - LG FLATRON | Service Manual - Page 17
( cf. work instructions) 1) TV 2) AV (CVBS/ Remote controller. 4. Total Assembly line process 4.1. Adjustment Preparation (1) Above 30 minutes H/run in RF no signal (2) 15 Pin D-Sub Jack is connected to the signal of Pattern Generator. 4.2. Confirm color coordinate of RGB * Check White Balance - Set - LG FLATRON | Service Manual - Page 18
among the sets. 4.10. Outgoing condition Configuration 1) After all function test., press IN-STOP Key by SVC Remote controller. And Make Ship Condition. 2) When pressing IN-STOP key by SVC remocon, Green and red LED are blinked alternatively. And then Automatically turn off. (Must not AC power OFF - LG FLATRON | Service Manual - Page 19
pressure - Confirm whether is nomal or not when between power board's ac block and GND is impacked on 1.5kV(dc) or 2.2kV(dc) for one second. 4.12 Option data setting (SVC OSD setting) (1) Tool Option *M198WA-BMH- Tool Option 7809 Resolution Module TV VIDEO COMPONENT PC-RGB DVI HDMI M198WA-BTH - LG FLATRON | Service Manual - Page 20
00 00 EEPROM Read EEPROM Write E8 00 data EEPROM Write by some values COLOR SAVE (R/G/B cutoff, Drive, EB 00 00 Color Save Contrast, Bright) H POSITION 20 00 00 - 100 They have different range V POSITION 30 00 00 - 100 each mode, FOS Adjustment CLOCK 90 00 00 - 100 PHASE 92 00 00 - 100 - LG FLATRON | Service Manual - Page 21
ADJUSTMENT Windows EDID V1.0 User Manual Operating System: MS Windows 98, 2000, XP Port Setup: Windows 98 => Don't need setup Windows 2000, XP => Need to Port Setup. This program is available to LCD Monitor only. 1. Port Setup a) Copy "UserPort.sys" file to "c:\WINNT\system32\drivers" folder b) Run - LG FLATRON | Service Manual - Page 22
SERVICE OSD BLUEBIRD3 - LP69G Version 3.00 070502 M198WA WXGA+ LPL 19W UTT 0 Tool Option Area Option 2HR-OFF FACTORY-MODE CHANNEL-MUTE RAM Delay Power OFF ON 5V C F VGS A MONITOR B V-SYNC ST POWER Power inlet (required) 220 Power Select Switch (110V/220V) Power LED E ST Switch F V-Sync - LG FLATRON | Service Manual - Page 23
TROUBLESHOOTING GUIDE 1. NO POWER (LED INDICATOR OFF) : [A] Process Check 15V or ST_5V of Power B/D. Pass Check Output of IC1100, IC1101. Pass Fail Check 15V or ST_5V of Power B/D. Fail Check short of Fail Re-soldering of Change IC100, Q307. defect part of IC100, Q307. Pass Change IC1100 - LG FLATRON | Service Manual - Page 24
2. NO RASTER : [B] Process Check LED status On Display Unit. Pass Check Panel Link Cable or Module. Pass Check Inverter Connector or inverter. Pass Check Output of R305 Pass Fail Repeat A PROCESS. Fail Change Panel Link Cable or Module. Fail Change Inverter Connector or Inverter. Fail - LG FLATRON | Service Manual - Page 25
3. NO RASTER ON RGB SINGAL Repeat [A, B] process. Pass Check the input/ output of R708, R709 Pass Check the input/output of R128, R131, R136. Pass Check the input/output of IC100. Pass Check input source cable and jack. Fail Check the J701. Fail Re-soldering or Change the defect part. Fail Re - LG FLATRON | Service Manual - Page 26
4. No Raster on Component Signal Repeat [A, B] process. Check the input/ output of R901. Pass Check the input/output of R125. Pass Check the input/output of IC100. Pass Check input source cable and jack. Fail Check the J900. Fail Re-soldering or Change the defect part. Fail Re-soldering or - LG FLATRON | Service Manual - Page 27
the X100 of R100. X100. Pass Check input source cable and jack. 6. No Raster on AV(Scart in Video, S-Video) Signal Pass 7. No Rasteron TV(RF) Signal Pass Repeat [A, B] process. Pass Check the input/output of L804, L1002,L1003, L1004. Pass Fail Check short of IC100, Q307. Fail Change - LG FLATRON | Service Manual - Page 28
8. No sound Fail Check the input Sourse. Change the source input. Pass Check input/Output ofIC100. Pass Fail Re-soldering of Change the defect part, Check the X100 Check the input/ output Fail Re-soldering of Change of IC500 the defect part. Pass Check the Speaker Fail Change Speaker. - LG FLATRON | Service Manual - Page 29
-LF) Data (FSD 0 .31) (FSA 0 ..11) 16Mb SDRAM (HY57V161610FTP) LVDS Signal Data (OCMD 0 ..7) (OCMA 0 ..19) 4Mb Serial Flash Memory (MX25L4005A) EEPROM System(64k) L R EAGLE EYE POWER IR Audio Amp (YDA138) LCD Module (LPL) SP (L) SP (R) - LG FLATRON | Service Manual - Page 30
Power (100-240 V, 50/60 Hz, 1.0A) 2. DC/DC Converter block DC/DC Converter convert the input 5V,15V to proper 1.8V,2.5V,3.3V,5V,10.5V for Main control system. For shooting heat trouble On decoding, We can control signal like Contrast, Brightness, Sharpness, Color, tint signals including Adaptive Comb - LG FLATRON | Service Manual - Page 31
to adjust the duty cycle during different AC input and output loading condition to achieve the dcoutput stabilized, and also the over power protection is also monitor by this part. 5. Photo-Coupler isolation. This part function is to feed back the DC output changing status through a photo transistor - LG FLATRON | Service Manual - Page 32
300 200 420 530 400 520 410 EXPLODED VIEW - 32 - 310 320 330 500 510 430 120 940 900 930 950 910 920 - LG FLATRON | Service Manual - Page 33
,Full Range, L07030A-027 ND35 3W 16OHM 85DB 300HZ 30 X 70 X 22 SOLDER SUNLINK COMPANY 200 EAJ36290801 LCD,Module-TFT, LM190WX1-TLC1 DRIVER 19INCH 1440X900 BRAND 510 6871TPT318G PCB Assembly,Power, PLLM-M602C POWER T.T CMO L225W 22"Wide Scaler Dimming FREQENCY CHANGE LG INNOTEK CO., LTD 520 - LG FLATRON | Service Manual - Page 34
DATE: 2007. 06. 20. LOC. NO. PART NO. DESCRIPTION / SPECIFICATION ACCESSORY A1 MFL37805907 ManualPRINTING USER - BRAND M198W A2 6410TEW011A Power CordIMO LP-22 & H05VV-F 0.7 or 6410TEW001C Power CordSP-28 IS-14 H05VV-F 3GX A3 130-013B "Battery,ManganeseR03( STC) 1.5V 1" A4 68509F0003A - LG FLATRON | Service Manual - Page 35
LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C148 C149 C150 C151 C152 C153 C154 C155 C156 C157 C158 C159 C160 C161 C162 C163 C164 C165 C166 C167 C168 C169 C170 C171 C172 C173 C174 C175 C176 C177 C178 C179 C180 C181 C182 C183 C185 C186 C187 C188 C189 C190 C191 C192 C193 C194 C195 C196 C197 C198 - LG FLATRON | Service Manual - Page 36
LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C528 C529 C530 C531 C600 C601 C602 C603 C604 C605 C606 C607 C608 C609 C701 C702 C703 C704 C705 C706 C707 C708 C709 C710 C711 C712 C713 C714 C715 C716 C717 C718 C719 C720 C900 C901 0CC102CK41A 0CC102CK41A 0CC102CK41A 0CC102CK41A 0CK103CK56A - LG FLATRON | Service Manual - Page 37
LOC. NO. PART NO. DESCRIPTION / SPECIFICATION IC701 IC702 0IMMR00014A 0IMMR00014A "IC,EEPROMM24C02-RMN6TP 2KBIT 256X" "IC,EEPROMM24C02-RMN6TP 2KBIT 256X" COILs & FILTERs & INDUCTORs L1104 L500 L501 L503 L504 L1000 L1001 L1006 L1007 L1113 L1114 L1115 L1116 L1117 L505 L506 L507 L508 L509 L510 - LG FLATRON | Service Manual - Page 38
LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R1153 R116 R117 R118 R119 R120 R121 R122 R123 R124 R125 R126 R127 R128 R129 R130 R131 R132 R133 R134 R135 R136 R137 R138 R139 R140 R141 R142 R143 R144 R148 R153 R154 R155 R156 R157 R158 R159 R162 R163 R165 R166 R167 R168 R173 R174 R183 R184 R185 R186 - LG FLATRON | Service Manual - Page 39
LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R316 R319 R320 R4000 R4001 R4002 R4003 R4004 R4005 R402 R403 R404 R405 R406 R407 R408 R409 R500 R501 R502 R504 R505 R508 R509 R510 R511 R513 R514 R515 R516 R518 R600 R601 R602 R603 R604 R605 R606 R607 R608 R609 R610 R611 R622 R631 R633 R636 R637 R638 - LG FLATRON | Service Manual - Page 40
LOC. NO. PART NO. DESCRIPTION / SPECIFICATION JACKs J1000 J1001 J1002 J1003 J900 6612F00099A 6612J10026A 6612F00024C 6612F00099A 6612J10031B "Jack,PhonePEJ024-01 1P 4P STRAIGH" "Jack,RCARCA-359HA-00A-01G 14.0MM" "Jack,DINPSJ014-01 SOCKET 4P ANGLE" "Jack,PhonePEJ024-01 1P 4P STRAIGH" "Jack, - LG FLATRON | Service Manual - Page 41
PRINTED CIRCUIT BOARD MAIN (TOP) - 41 - - LG FLATRON | Service Manual - Page 42
MAIN (BOTTOM) - 42 - - LG FLATRON | Service Manual - Page 43
CONTROL LED & P/SW - 43 - - LG FLATRON | Service Manual - Page 44
SCHEMATIC DIAGRAM 1. MSTAR - 44 - - LG FLATRON | Service Manual - Page 45
2. PANEL & CONNECTOR - 45 - - LG FLATRON | Service Manual - Page 46
3. DDR - 46 - - LG FLATRON | Service Manual - Page 47
4. AMP - 47 - - LG FLATRON | Service Manual - Page 48
5. TUNER - 48 - - LG FLATRON | Service Manual - Page 49
6. D-SUB & DVI - 49 - - LG FLATRON | Service Manual - Page 50
7. SCART & DAC - 50 - - LG FLATRON | Service Manual - Page 51
8. JACK - 51 - - LG FLATRON | Service Manual - Page 52
9. POWER - 52 - - LG FLATRON | Service Manual - Page 53
10. CONTROL KEY - 53 - - LG FLATRON | Service Manual - Page 54
11. IR + LED + POWER - 54 - - LG FLATRON | Service Manual - Page 55
P/NO : MFL38456749 Jun. 2007 Printed in Korea
COLOR MONITOR
SERVICE MANUAL
Website:http://biz.LGservice.com
CAUTION
BEFORE SERVICING THE UNIT,
READ THE
SAFETY PRECAUTIONS
IN THIS MANUAL.
CHASSIS NO. : LP69G
MODEL:
M198WA (M198WA-BMH.A**MLP)
M228WA (M228WA-BMH.A**MLP)
*(
) **Same model for Service