LG UltraGear 27GR93U-B Service Manual

Chassis : lm33a

LED MONITOR

SERVICE MANUAL

CHASSIS : LM33A

MODEL : 27GR93U

CAUTION

BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

P/NO :

MFL71821322

(2305-REV00)

Any reproduction, duplication, distribution (including by way of email, facsimile or other electronic means),

publication, modification, copying or transmission of this Service Manual is STRICTLY PROHIBITED unless you

have obtained the prior written consent of the LG Electronics entity from which you received this Service Manual.

The material covered by this prohibition includes, without limitation, any text, graphics or logos in this Service

Manual.

Page 1 Service Manual is STRICTLY PROHIBITED unless you have obtained the prior written consent of the LG Electronics entity from which you received this Service Manual. The material covered by this prohibition includes, without limitation, any text, graphics or logos in this Service Manual.
Page 2: Table Of Contents
BLOCK DIAGRAM ............................- 13 - EXPLODED VIEW ............................- 14 - ASSEMBLE AND DISASSEMBLE ........................- 15 - TROUBLE SHOOTING GUIDE ........................- 17 - - 2 - Copyright © 2023 LG Electronics Inc. All rights reserved. Only training and service purposes...
Page 3: Safety Precautions
1 MΩ and 5.2 MΩ. *Base on Adjustment standard When the exposed metal has no return path to the chassis the reading must be infinite. - 3 - Copyright © 2023 LG Electronics Inc. All rights reserved. Only training and service purposes...
Page 15: Assemble And Disassemble
5) All the accessories like remote controller, batteries, and cables are showed in the picture Caution: SVC man must check insulation sheet on the module before assembling the set 1. Unscrew the stand base by using coin - 15 - Copyright © 2023 LG Electronics Inc. All rights reserved. Only training and service purposes...
Page 16 2. Disassemble the latches of three edges 3. Disassemble the back cover 4. Disaaemble screw 7EA and disassemble the PCB 5. LCD Module - 16 - Copyright © 2023 LG Electronics Inc. All rights reserved. Only training and service purposes...