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LG-50PQ6000 clicks and clicks and clicks

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Baileybum1234:
The standby 5v is not constant it fluctuates down to about 4.6-4.8 when the relay randomly clicks about every second or so.

Jarrett

Baileybum1234:
Any one know how to test the AC-DET optoisolators.  Had a tip off it could be this??

Jarrett

Baileybum1234:
Well I fixed this fault by replacing a Schottky diode that was shorted.  It worked for a about 6 weeks and went again with a different fault.  Typical.  My SB5v is now 4.45v  and I really dont know why?? :41:

marky mark:
Perhaps the board is going into protection mode?

Baileybum1234:

--- Quote from: marky mark on February 26, 2013,17:07:19 ---Perhaps the board is going into protection mode?

--- End quote ---

Hi Mark its definately something to do with the protection mode I think.  Its just finding out what.

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