Question about Samsung SyncMaster 931B 19" LCD Monitor
I turn the monitor on and it tries to come on but simply flashes to the windows login screen for a split second then turns off again right away. It repeats this over and over every 2 or 3 seconds. When it turns off you can see its trying to display the "no signal" detected but the screen goes black before you can actually read it. This just started happening, its not my computer or video card they all work fine. I suspect the power supply board or the little board where the video connector plugs in is faulty?
Problem solved by changing 3 capacitors (C112, C113, C316).
Replace the 470uF 25V with a good quality low ESR type and the two 820uF 25V with 1000uF 25V low ESR types.
The 1000uF caps should be 10x20 in size, however I managed to get 13x20 caps in, but it was a bit tight.
Posted on Apr 22, 2009
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Posted on Jan 02, 2017
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