Where do you live? In extremely cold conditions transistors & IC's can
become "Cold Soaked" that is, the components have become so cold that their
internal resistance has risen to the point that they can no longer conduct
Thanx all for replying. I live in Texas where its in 100s now. The Radio
will only power up in extreme heat. I just dont get it. Checked wiring
harness and fuses no issues there still in normal temp the radio just will
not power until in extreme heat. Any suggestion will be much apprerciated.
You might try asking on rec.audio.car.
I would try powering it from a 12v power supply and following the power
bus. Use a heat gun and gingerly heat small areas until it works, then
use a circuit cooler spray to cool it off in various areas until I could
reliably make it start and stop.
Sounds like a poorly solder connection somewhere such that the
conductors move/expand connecting when hot. That type of problem is
more common than you might think. I used to see it at times when I was
working in electronics. Especially component leads going through a
soldered connection hole in a circuit board. The connection visually
looked fine but when moved with an insulated tool or heated and cooled
as I described would fail.
Address fake until the SPAM goes away ;-}
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