G.Beard
New member
820-3437 History liquid.
Had this board working then it stopped.
Initially changed bad value resistors on pin 28 & pin 27 of ISL6259. Board worked then stopped working.
Checked current sense circuit going to pin 27 & 28 again after it stopped working and resistors bad again. ISL6259 was bad so replaced that and also replaced inrush current limmiter FET. Teted values around limmiter FET and all looks good. Turned it one, one fan spin, dead ISL6259, bad resistors again.... What should I look for here?
Had this board working then it stopped.
Initially changed bad value resistors on pin 28 & pin 27 of ISL6259. Board worked then stopped working.
Checked current sense circuit going to pin 27 & 28 again after it stopped working and resistors bad again. ISL6259 was bad so replaced that and also replaced inrush current limmiter FET. Teted values around limmiter FET and all looks good. Turned it one, one fan spin, dead ISL6259, bad resistors again.... What should I look for here?