[TechAssist] Re: Peavey Mixer / Amp. Model XR684. Blows main fuse F8A (info on "open"xfmr).
- From: Doug Keller <dek@xxxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Tue, 28 Dec 2004 13:56:54 -0500
rectifier bridge?
Doug Keller
Wis-Kel Electronics
101 Freeland Ave.
Terra Alta, WV
USA 26764
dek@xxxxxxxxxxxxxx
dek@xxxxxxxxxxxxxxx
http://www.tech-assist.org
"Learn from the mistakes of others, because you
won't live long enough to make them all yourself"
Robinson Electronics wrote:
>
>Checking this amp out for a customer of mine, request help?
>I am working without schematics on this model!
>Problem: Repeatedly blows fuse F8A
>
>Diagnose: Checked all power amp transistors, caps, resistors for shorts or
>leakage.
>Checked for bad or cracked connections on board.
>When checking power transformer (number on xfmr "70538719"), on connection
>plug J123, J153 found no resistance (open) at all between the 2 connectors.
>Seems to indicate a bad, or "open" tranxformer.
>
>Can you help with some information on this?
>You can reach us anytime by email, or phone at the numbers below.
>
>Robinson Electronics
>1075 Sweeten Creek Road
>Asheville, NC 28803
>Ph./Fax. 828 274-3787
>Toll Free. 1-888 ROBELECT
>www.robinsonelectronics.com
>www.robelect.com
>Mailto: RobinsonElectronics@xxxxxxxxxxx
>
>
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