Homer J Simpson wrote:
> <timinohio@xxxxxxxxx> wrote in message
> > My wife brought home a flat iron, used for straightening hair, from a
> > woman she works with. It would turn on, but not get hot. I opened it
> > up and discovered that a resistor (one lead blown off the board) and a
> > triac (case had a chunk missing) had failed.
> > Questions:
> > What would have had to happen to cause this?
> > What likely failed first? Did the resistor fail, causing the triac to
> > fail, or vice versa?
> Vice versa.
> > The resistor is tiny, about 6mm x 3mm, and the 5 color bands are very
> > hard to read. My DMM reads 1.2 Mohm. Is the reading from a failed
> > resistor accurate enough to get a replacement? If you had a resistor
> > that you couldn't read the color bands on, how would you replace it?
> I would guess. It's not hard to experiment on.
Thanks, Homer. How would I know if I have it right, other than the
thing doesn't pop when I plug it in? What are the dangers of
installing a resistor that is too big or too small?