[TechAssist] Re: amplifier problem - buzz on outputs
- From: "Stefaan Van Slycken" <vanslycken@xxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sun, 8 Dec 2002 22:57:00 +0100
have you checked the electrolytic filter capacitors? They might look ok
until powered up... do you have a capacitance meter?
Stefaan Van Slycken
Van Slycken Elektro - Waasmunster, Belgium
----- Original Message -----
From: "babalino" <babalino@xxxxxxxxxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Sunday, December 08, 2002 10:24 PM
Subject: [TechAssist] amplifier problem - buzz on outputs
>
> Hello, I have an audio amplifier(150W) (240V at 50Hz) that is giving me a
> headache!
> The linear power supply seems to have a problem here.
> The output to the speakers gives a buzz on both speakers and no audio
> signal.
> The transformer in the power supply starts off cool but after 10 minutes
is
> too hot too touch when I switch it off.
> I have checked all the components in the linear power supply and they seem
> ok.
> The transformer is giving me outputs of 10Vac and 22Vac
> Any ideas to track this one down. It is a fairly old amplifier.
> Regards babalino
>
> Mr D Graham
> Grahams Electronics
> 978 Walker Road
> Newcastle upon Tyne
> England
>
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