Re: Amplifone Deflection

From: Daniel Piraino <dpiraino_at_twcny.rr.com>
Date: Tue Mar 26 2002 - 09:04:59 EST

 Make sure you check every resistor and every diode, those can cause
deflection problems also.
Dont just concentrate on the transistors. i made that mistake ,
eventually i found out i had and open diode.
Dan

Joe Bachmann wrote:

>Time to go fishing for ideas.
>
>I have an Amplifone delfection baord with what I think is an odd issue.
>
>This board had a bad Q14. Q14 was/is a MPSU56 (MPSU57 replacement.)
>
>There is no deflaection on the screen other than a haze. The spot killer is not on.
>
>The large resistor on the X side is heating up much more than it should. The one on
>the Y side is heating up perhaps slighty more than normal.
>
>Q14 was bad and was replaced.
>
>All transistors on the X side and spot killer ciruit have been checked. All jumpers
>have been replaced with wire.
>
>No other components are abnormally warm.
>
>
>Any ideas?
>
>Thanks,
>Joe
>
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Received on Tue Mar 26 03:08:58 2002

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