Question about Tatung Computers & Internet

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Tatung mod v32gcgi problem left side of screen ok right side loss of sync or pixel syn loss on right side exactly from center to right.

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  • stsj55 Feb 09, 2010

    thanks for your reply remove cover there is only a main module and a switch mode pwr supply. found a leaky cap on pwr supply. replaced it didnt help i agree with you yet there is no visible sign of a problem. also a heat sink was laying in the main board cover the set is a cheap one it was glued on. cant find any technical drawings or information on any of the high def.sets. any help will be appreciated.

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It seems to be a problem with the inverter board, some inverters send out the signal in two halfs, signal for right hand of the screen and one for the left, it seems the left side electronics have failed, the only way to look for any blown componants is to take the back cover off and have a little route around to see if you can see anything suspect, the reason i say the left side has failed, is because if you look at the board with the screen face down, the right side of the screen would become the side of the board. have a look and get back to me, the other option is to replace the inverter.

Posted on Feb 02, 2010

  • jimnuggats Feb 09, 2010

    It sounds like the power supply is an inverter/power supply then you have the seperate signal board, check the tops of all the capacitors, if they are slightly domed or pretruding they will need to be changed also. On the the power board have a look for a four legged componant, looks like an ic, its the optoisolater, this may be faulty and also needs to be swapped out. The heatsink that you mentioned may be off the power ic which should stand upright on the board and have about 5-6 legs, you are right though it should be screwed onto the ic not glued, this would just coarse it to overheat and again could be caursing the problem. It is very hard to get hold of schematics for a singal make of monitor, they are generally all the same, just built a different way. hope this is of some help. thanks Jimnuggats

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