Table of Contents
Advertisement
Quick Links
LCD MONITOR
SERVICE MANUAL
CHASSIS : LM42A
MODEL : 32MB25VQ
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL67715288 (1508-REV00)
North/Latin America
Europe/Africa
Asia/Oceania
32MB25VQ-LC
Internal Use Only
http://aic.lgservice.com
http://eic.lgservice.com
http://biz.lgservice.com
Printed in China
Advertisement
Table of Contents
Related Manuals for LG 32MB25VQ
Summary of Contents for LG 32MB25VQ
- Page 1 Internal Use Only North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.lgservice.com LCD MONITOR SERVICE MANUAL CHASSIS : LM42A MODEL : 32MB25VQ 32MB25VQ-LC CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL67715288 (1508-REV00) Printed in China...
- Page 2 SPECIFICATION ..................4 ADJUSTMENT INSTRUCTION ..............5 BLOCK DIAGRAM .................. 10 EXPLODED VIEW .................. 11 SCHEMATIC CIRCUIT DIAGRAM .............. - 2 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
-
Page 3: Safety Precautions
An other abnormality exists that must be corrected before the receiver is returned to the customer. - 3 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes... -
Page 4: Specification
,Pin Do not Support Power Input: AC100~240V 50~60Hz, 19V, 2.53A Output: DC 19V 2.53A Applying module list P/No EAJ63112001 - 4 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes... -
Page 5: Adjustment Instruction
Need to Input Serial Number ***:Year: Controlled - Blue box ** Protocol : DDC 2AB **** Check sum - Block box - 5 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes... -
Page 6: Adjustment Order
At cut-off and drive -> 16 step pattern for ADC - Output Voltage : 700 mVp-p - Output Mode : Mode 12(1920x1080+ 60Hz )mode Setting. - 6 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes... - Page 7 ■ Measurement Condition : 230V@ 50Hz (Analog) ■ Confirm DPM operation at the state of screen without Video Signal.(refer to Spec at Page 11) - 7 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
-
Page 8: Command Form
SyncFlags,HPeriodH, HPeriodL, VtotalH,VtotalL, SrcHTotalH, SrcHTotalL SrcHStartH, SrcHStartL, SrcVStartH,SrcVStartL, HsyncPhase ■ Temporary Data write: Write to particular address of EEPROM. - 8 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes... -
Page 9: Signal Table
■ 8-byte write L : 0x00,0x10,….0x70 5.6.5. EDID Read - DDC2B Command.(A0/A1) - 128 Byte transfer of EDID Buffer of MICOM - 9 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes... -
Page 10: Block Diagram
BLOCK DIAGRAM - 10 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes... -
Page 11: Exploded View
X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. - 11 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes... - Page 12 1.2VS PCB P/N: EAX65842902 (LM42A) C120 C122 C124 0.1uF 0.1uF 0.1uF 3.3VS Date : 2014.03.18 C119 C123 C126 C128 C130 C118 C121 C125 C127 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF C117 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF Control/LED indicator 3.3VS 3.3VS READY R405 R404 3.3VS...
- Page 13 DVI_HPD BAT54 KDS184 HDMI_5V JK200 MMBD301LT1G D206 DVI_5V D200 QH01121-D2WS-4F BAT54 BAT54 IC201 D205 JK201 D207 R252 M24C02-RMN6T IC200 51V019S-35SN-CR2-B-LG M24C02-RMN6T DVI2- 8 VCC R253 8 VCC DATA2+ HDMI_RX2+ DVI2+ WP_24C02 DATA2_SHIELD WP_24C02 DVI1- DATA2- HDMI_RX2- R254 R229 HDMI_SCL R211...
- Page 14 Audio AMP (READY) READY P300 READY SMAW250-H04R READY L303 10.0uH R342 READY READY READY C321 C325 READY READY C313 0.22uF 1000pF 3.3V-AMP SPK_L+ R343 0.1uF R316 R318 JP308 C319 SPEAKER_L READY 0.22uF READY READY READY READY READY 12 GND_REG C326 READY SPK_L- READY...
- Page 15 140114 (EJ Lee) For Temp. Prevent P302 READY SMAW200-07 UBW2012-121F VOUT = VREF*(1+51K/680) 140114 (EJ Lee) 19VS = 0.7 *(1+51K/680) For LED input voltage(Typ. 120v, MAX 127.8v) = 53.2V 33uH SK510B_TSC Vout 33uH 33uH UF3D(SUZHOU GRANDE) 100V 33uF 33uF 100V 100V 33uF 100pF...