Fuseable resistor value.
On Fri, 28 Sep 2007 15:30:13 +0100, "N Cook" put
finger to keyboard and composed:
A 2W resistor in a pc ps, o/c with no sign of heating at all,so clearly
marked bands of red,yellow,yellow,gold, silver.
Before I remove it and make an axial scrape along the coating would anyone
know what that value should be ? 3 band accuracy in a pc or is there some
other convention not ordinary 5 band coding ?
The only places I can think of that would require a precision resistor
(but not fusible) would be the voltage sensing inputs of the PWM
controller IC on the secondary side, or maybe the +5VSB supply. In
these cases precision resistors are usually preferred to trimpots.
If you could describe the circuitry in the immediate vicinity, or
provide a photo, perhaps someone may be able to make sense of it.
- Franc Zabkar
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