[TechAssist] Re: Peavey 400SC amplifier-no output
- From: "Glenn Larkman" <mail@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Wed, 8 Oct 2003 10:40:20 -0700
Thomas,
Sounds like yov'e got yourself a supersonic oscillator.
Look for around 60-100Khz at the outputs.
If so then look for an open coupling cap.
Glenn Larkman
Audiotech
256 Nth Hwy 101
ENCINITAS CA 92024
760 944 9048
FAX 944 0345
mail to"mail@xxxxxxxxxxxxx"
"www.audiotech.net"
----- Original Message -----
From: "Tri-County Tv" <tricountytv@xxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, October 08, 2003 9:01 AM
Subject: [TechAssist] Peavey 400SC amplifier-no output
Hello ,
This Peavey amp came in last week and it's turning into a dog, so
I thought I would take a chance that we might have a Peavey tech or a tech
with some Peavey experience in our forum .We do not get that many Peavey
amps in for repair. I do have the Peavey schematic but it does not tell you
normal voltages or waveforms. I have checked everything, found nothing out
of the ordinary. Problem is unit has no sound, power supply voltages are
normal but the outputs do heat up to the point you cannot touch them,just
sitting with no signal,if you unplug the connector that leads to the front
mixer pcb then the outputs cool down. I do not see anything abnormal that
would cause the outputs to get hot.Has anybody seen this problem with this
peavey model?
Thomas Berger
Electronic Home Systems
P.O.Box 309
Robbinsville N.C. 28771
Ph- 800-393-3997
Fax 828-479-4868
E-H-S@xxxxxxxxxxxxx
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