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Need tips in fixing APC 1500VA UPS having buzzing noise
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07-28-2012, 08:01 PM
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budm
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Re: Need tips in fixing APC 1500VA UPS having buzzing noise
Is this UPS a true sine wave inverter or step sine wave type? Do you have full model number?
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Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
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TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809
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