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Service Manu Version TITLE LCD TV For 232-S12 Page 1/44 Service Manual LCD TV For 232-S12 Doc No.： Version：1.0 Total Pages：41 Revise by Revise by Approval Made by Daniel Villa Randal J. Cook Hans Chung Kanzi Lee 12/8/06.

Service Manual TITLE Version LCD TV For 232-S12 Page 2/44 Table of Contents 1. Introduction.3 1-1 Preface.3 1-2 Caution.3 1-3 Warning.3 2. Specifications.4 3. Wiring Diagram.5 4. Trouble shooting flow chart.6 4-1 Abnormal Display.6 4-2 Abnormal Power On/Off.7 4-3 LED Light Abnormal Display、Keypad Problem.8.

Service Manual TITLE Version LCD TV For 232-S12 Page 3/44 1. Introduction 1-1 Preface This service manual describes module-level LCD TV repair for qualified service personnel. This service manual also includes selected production troubleshooting information for electronic technicians and engineers. Service Manual TITLE Version LCD TV For 232-S12 Page 4/44 2. Specifications PRODUCT SPECIFICATIONS LCD Panel 32' TFT Power Management ＜ 1W (Standby Mode) Displayable Resolution VGA 1360*768 max. Pixel Pitch 0.17025mm x 0.51075mm x RGB LCD Display Color 16.7M colors(8-bits colors).

Service Manual TITLE Version LCD TV For 232-S12 Page 5/44 3. Wiring Diagram. Service Manual TITLE Version LCD TV For 232-S12 Page 6/44 4. Trouble shooting flow chart 4-1 Display Problems Note: Refer to the Wiring Diagram during troubleshooting for a visual of inter-connections when indicated by this symbol.

Trouble Condition. Service Manual TITLE Version LCD TV For 232-S12 Page 7/44 4-2 Abnormal Power On/Off Trouble Condition Check Item Replace Material Test Abnormal Power On/Off Step1: Check Power Supply, Con. Fail Replace Power No Power CN904–pin 7 to ground = 5VS supply Con.CN904 pin 8 to ground =. Service Manual TITLE Version LCD TV For 232-S12 Page 8/44 4-3 LED is Malfunctioning、Keypad Problem Trouble Condition Check Item Replace Material Test Step1： Check CN 1 on system Fail Secure connection or board to CN 1 on Keypad.

Service Manual TITLE Version LCD TV For 232-S12 Page 9/44 4-4 Image Problems Trouble Condition Check Item Replace Material Test 1. Reconnect cable Step1： No picture through Fail 2. Replace cable 1. Check video cable component 3.

Change source. Service Manual TITLE Version LCD TV For 232-S12 Page 10/44 4-5 Audio Problems Trouble Condition Check Item Replace Material Test Fail Check switches on the Can’t adjustment Replace Keypad Audio Problems keypad board Volume board Step1： Fail Check for loose. Service Manual TITLE Version LCD TV For 232-S12 Page 11/44 4-6 Other Problems Trouble Condition Check Item Replace Material Test Step1： Sometimes picture Fail Check Con.

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J11 to Replace LVDS flashes panel LVDS onnection connect wire Other display problems Step2：. Service Manual TITLE Version LCD TV For 232-S12 Page 12/44 5. Disassembly 5-1 Stand Screw M4 25mm ScrewT4*10-PH-Cross-Black 1. Loosen and remove 8 screws. Safely remove the Stand. 5-2 Back Cover ScrewT4*10-PH-Cross-Black 1.

Loosen and remove 10 screws. Service Manual TITLE Version LCD TV For 232-S12 Page 13/44 5-3 System Board 1. Loosen and remove 17 screws as indicated in Figure 1~4. Take off the Support Metal. Figure 4 Figure 2 Figure 1 Screw MT4x8-PH-Cross-Black. Service Manual TITLE Version LCD TV For 232-S12 Page 14/44 5-4 Power Module 1. Loosen and remove 6 screws and safely remove connectors indicated by red circles.

MT3*6-PH-CROSS-Black 2. Loosen and remove 18 screws and safely remove connectors indicated by red circles. Service Manual TITLE Version LCD TV For 232-S12 Page 15/44 5-5 Panel Module 1. Safely remove the LVDS wire indicated by red circles. Remove the panel housing. Service Manual TITLE Version LCD TV For 232-S12 Page 16/44 5-6 Speakers 1. Gently remove the speaker connectors that are indicated by a red circle.