Question about Samsung SyncMaster 740N 17" LCD Monitor

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Samsung 740n death

My lcd is death.do you have schemat ip board ip-35135bi have to repair it i don't have cash for new one (:

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What do you mean by dead???No picture,no raster...I don't have a schematic but by experience you have a problem in the PSU 5V power line

Posted on Aug 27, 2008

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I have a Samsung LCD Monitor 740B of which the CCFL backlight wasnot working anymore. It has a power board IP35135B.
The pico fuse of 3A was blown. One of the elcoos of 820uF 25V had a heaped cap. and one of the two 8pins ICs AF4502C had a short circuit.
Solution
I replaced the elco's of 820uF 25V RS 571290 all 3 of them, the picofuse RS 5413293 and the IC RS 5429377.
The IC AF4502C wasnot availible anymore, but as an alternative I put a IRF7309PBF and it works fine.
Hope this solution can help you, Laurens.

Posted on Nov 15, 2012

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