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Topic: Amp Delayed Power-up After Switch-on |
Charles Kurck
From:
Living in Arkansas but Heaven is home
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Posted 15 Jun 2014 5:25 am |
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My Stereo Steel amp has developed a delayed power-up.
I flip the on switch and the amp lights up but no sound until from one to five minutes later.
Anybody know what might be causing this ? |
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Craig Baker
From:
Eatonton, Georgia, USA - R.I.P.
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Posted 15 Jun 2014 8:35 am
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Charles,
Don't know how old the amp is, but over time capacitors can dry out. I have repaired two broadcast consoles that developed the same problem, taking two to three minutes before they came to life. Replacing the electrolytic caps in the power supply and amplifier circuits cured the problem.
Best regards,
Craig Baker 706-485-8792
cmbakerelectronics@gmail.com
C.M. Baker Electronics
P.O. Box 3965
Eatonton, GA 31024
_________________
"Make America Great Again". . . The Only Country With Dream After Its Name. |
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Charles Kurck
From:
Living in Arkansas but Heaven is home
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Posted 16 Jun 2014 4:17 am
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Craig Baker:
Thank you for the info. The amp was built in 1999 so it is now 15 years old.
Any idea if its condition will get better, or worse, or stay the same ? |
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Craig Baker
From:
Eatonton, Georgia, USA - R.I.P.
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Posted 16 Jun 2014 3:09 pm
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Charles,
Your amplifier would seem to be too young to have this problem, but who can tell with electronics? It may or may not get worse, but I wouldn't expect it to get better. Sorry I can't think of a better suggestion to offer you.
Best regards,
Craig Baker 706-485-8792
cmbakerelectronics@gmail.com
C.M. Baker Electronics
P.O. Box 3965
Eatonton, GA 31024
_________________
"Make America Great Again". . . The Only Country With Dream After Its Name. |
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Donny Hinson
From:
Glen Burnie, Md. U.S.A.
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Posted 18 Jun 2014 3:36 pm
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It sounds like a cold solder joint. What usually happens is that an open circuit is "closed" when things heat up and expand. I once had an old tube amp that had a bad cap, and it would only work after it heated up, or if you physically wiggled the bad cap.
You might try slapping the top of the amp very hard with your open hand when you've first turned it on. Any electrical noise would then verify that it's probably a bad connection. |
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