[TechAssist] Re: Zenith SS2504


Hi there Gary, We do a ton of these sets. 95 % of the time when the 
regulator is shorted on the sets, the culprit is a shorting CRT. Many times 
we have fixed these to have them come back like revolving doors.
Try tapping the neck of the crt when it is running.
Good luck,
Keith


>From: "GARY AND JUANITA CHAMBERS" <gchambe3@xxxxxxxxxxxxxxx>
>Reply-To: techassist@xxxxxxxxxxxxx
>To: <techassist@xxxxxxxxxxxxx>
>Subject: [TechAssist] Re: Zenith SS2504
>Date: Tue, 15 Jan 2002 21:11:47 -0500
>
>
>There are 2 smaller capacitors near the reg ic, i suspect they are bad, 
>also
>I would change q3431 after that kind of overvoltage.
>good luck,
>gary    CHAMBERS TV
>BRADENTON,FL
>SINCE 1982
>----- Original Message -----
>From: Don <tvgramps@xxxxxxxxxxx>
>To: <techassist@xxxxxxxxxxxxx>
>Sent: Tuesday, January 15, 2002 8:44 PM
>Subject: [TechAssist] Zenith SS2504
>
>
> >
> > Came in with fuse main fuse blown 2 B+ diodes shorted and C3431 had
> > vented,changed these parts and installed new STR54041 set fired up with
> > video and audio ok. After about 1 minute lost video then shutdown. The
> > regulator heat sink was too hot to touch, left unplugged for about five
> > minutes and plugged back in, the regulator heat sink started to get hot
> > again before the set was ever turned on. I checked the transistor near 
>the
> > regulator Q3431 it checked ok. No schematic nothing listed in Sam's for
>this
> > model.
> >
> >
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