[TechAssist] Re: Fw: SONY SRE-DE335 Amp Protect issue
- From: AL LEATHERMAN <alleathe@xxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Tue, 14 Aug 2001 10:31:25 -0400
Thank you Raphael. I will post when fixed. al
Al's TV
224 Rt. 46
Mine Hill, NJ. 07803
973-361-5796
alleathe@xxxxxxxxxxxxx
----- Original Message -----
From: "Rafael Gallegos" <gallegra@xxxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, August 13, 2001 11:41 PM
Subject: [TechAssist] Re: Fw: SONY SRE-DE335 Amp Protect issue
>
> Don't forget to reset bias after changing any output transistor, bias =
> point can be different even if they are the same part #. check for open =
> resistor, they get open very often when output get shorted, also make sure
=
> you don't have leaky transistors in driving output stage. I can not be =
> more specific because I have not work in this particular model.
> Rafael.
>
> >>> alleathe@xxxxxxxxxxxxx 08/13/01 08:10PM >>>
>
>
> ----- Original Message -----
> From: "AL LEATHERMAN" <alleathe@xxxxxxxxxxxxx>
> To: "Full List" <nesdanet@xxxxxxxxxxxxx>
> Sent: Monday, August 13, 2001 11:07 PM
> Subject: SONY SRE-DE335 Amp Protect issue
>
>
> > Q704 & Q703 blown. Q720 blown
> > and split. replaced all, outs are original, used SK91 for Q720.We have
> > service notes, micro seems ok.Amp played LOUD in go go bar, and they had
> > extra speakers on one side.Suspect parts run hot for a long time first.
> Any
> > ideas? appreciate any help. AL
> >
> > Al's TV
> > 224 Rt. 46
> > Mine Hill, NJ. 07803
> > 973-361-5796
> > alleathe@xxxxxxxxxxxxx=20
> >
> >
>
> Help make your TechAssist online repair tips=20
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