Re: Dell E172fpb
So I found out the hissing noise is coming from the biggest transformer (T601), or along that area. I measured the resistance of the primaries and secondaries and it seems they yield no resistance? I was measuring the voltages at the 100uf cap (biggest cap) and the voltages are at 165V. I still get 400+V at teh CCFL connection but drops to 2V after a few seconds or so. None of the trannies get hot this time, so I assume no voltage are going through them. Are those voltages normal? Am I out of luck?
So I found out the hissing noise is coming from the biggest transformer (T601), or along that area. I measured the resistance of the primaries and secondaries and it seems they yield no resistance? I was measuring the voltages at the 100uf cap (biggest cap) and the voltages are at 165V. I still get 400+V at teh CCFL connection but drops to 2V after a few seconds or so. None of the trannies get hot this time, so I assume no voltage are going through them. Are those voltages normal? Am I out of luck?
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