1. Overview Receiving Defective Monitor From Customer Verify problems & Proceeding necessary tests Function NG Analyzing possible malfunction causes Deciding & proceeding the rectification methods Replacing necessary defective parts Test the speaker if it works normally Return the speaker with proper repacking to customer Page 2...
2. Problems Descriptions & Solutions of the problems No power Make sure input the right voltage, and check the AC-DC adapter (DC12V 4.2A) No display Check the D-sub cable, and make sure connected tightly to both sides. Try to change inverter & A/D board to see the result (not recommended) Waves &...
3. Disassemble & Assemble Instructions of replacing Inverter & A/D board Using a screwdriver to loose the 4 screws After taking off the 4 screws, you can take up the plastic cover Page 4...
Page 6
You will see the metal cover, please remove the 6 screws, then you will see the Inverter & A/D board. If you want to change the Inverter, please take off the 3 screws and disconnected the cables Page 5...
Page 7
When you replace a new inverter, make sure connect cables in a right way. Page 6...
Page 8
If you want to change the A/D board, please take off the 4 screws and disconnected the cables When you replace a new A/D board, make sure connect cables in a right way. Page 7...
5 ˚ ˚ ˚ ˚Test After repairing and changing ¨recommend using video pattern generator (ex.Chroma 2316/2326) or display for testing software (ex.Nokia Monitor Test ) to test ,be sure the display's function is normal. Connect the LCD Monitor with power cord ˆvideo line ˆCHROMA signal transmission line.
(4) Whether the picture color is clear ( the red ˆgreen ˆblue color display unusual ( NG ) (5) Whether the picture is disturbed by hetero-color. ( Panel is bad ( NG ) Æ ‡ A ny bad condition of the above-mentioned is displayed, press the AUTO key once, after auto regulating of the function, if it is still unable to be normal, just belong to bad one.
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