[TechAssist] Re: Zenith SL2784BT 9-1235/9-1268 DEAD
- From: "Dave Huston" <DaveHuston@xxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 24 Dec 2002 17:09:23 -0500
9-1268 module is available here http://www.tvparts.com/ for $65 exchange &
the 9-1235 is $62 exchange.
Dave Huston
Huston TV & Electronics
Marion, Ohio 43302
DaveHuston@xxxxxxxxxxxx
(740) 389-5726 voice & fax.
----- Original Message -----
From: "Wilfred Blakey" <wblakey@xxxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, December 24, 2002 4:56 PM
Subject: [TechAssist] Re: Zenith SL2784BT 9-1235/9-1268 DEAD
>
> I wouldn't mind being in your place once in awhile as my customers keep
> asking if I have any big tvs for sale used and I can't seem to get any.
> About two weeks ago a gentleman wanted to give me a 32" Sanyo because he
did
> not want to pay for a solder job on the degause circuit. I went there and
> did not have a cart to help carry it so told him I would be back shortly.
I
> phoned about one week later and he had thrown it in the dump. Oh, well so
> much for that one.
> Blakey TV
> Kirkland Lake,Ont.,Canada
> ----- Original Message -----
> From: "Peter oliver" <oliver_peter1@xxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Tuesday, December 24, 2002 4:18 PM
> Subject: [TechAssist] Re: Zenith SL2784BT 9-1235/9-1268 DEAD
>
>
>
> This sweep board (9-1268-02) is a rebuilt board so it is not the first
time
> this happpened. I tested the CRT with another zenith chassis (a 1400
series)
> it runs ok. I tried a larger fuse 3A for the old smoke test.. There is a
> massive amount of curent being drawn across the horzontial driver
transistor
> and the drive transformer they start to smoke without shorting???. The HOT
> remains cold so it is probbably chassis time. The customer did not want to
> spend the money for a new/refurb chassis. so they may call for it or I may
> get stuck with it It's a nice set pip, SVHS, 2 video inputs, outputs
...27"
> so I may end up fixing it anyway. Its weird people have been giving me a
> number of 27" + sets lately, good brands like Sony, MAgnovox, Panasonic..
>
>
> Peter Oliver
> Tucson Radio TV
>
>
>
>
>
>
> From: "Bob@Bobs tv" <woodman1@xxxxxxxx>
> Reply-To: techassist@xxxxxxxxxxxxx
> To: <techassist@xxxxxxxxxxxxx>
> Subject: [TechAssist] Re: Zenith SL2784BT 9-1235/9-1268 DEAD
> Date: Tue, 24 Dec 2002 10:58:06 -0500
>
>
> Hi Pete,
> With fuse blown check HOT collector, if B+ there, power supply
> probably ok. There have been problems with the audio panel soldered to the
> main board. There is a small two wire cable from the SMPS that plugs in
near
> the metal box audio panel, unplug it. With jumpers hookup another fuse and
> try set. Another point don't get to involved as these are the sets with
the
> bad A68AGD picture tubes.
> Bob,
>
> Bobs TV Worcester, ma
>
> woodman1@xxxxxxxx
>
> Main 508-853-1482
> Fax 508-853-1480
> ----- Original Message -----
> From: "Peter oliver" <oliver_peter1@xxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Tuesday, December 24, 2002 12:40 AM
> Subject: [TechAssist] Zenith SL2784BT 9-1235/9-1268 DEAD
>
>
> >
> > Zenith
> > model SL2784BT
> > Split flat chassis 9-1235 main 9-1268 sweep/smps
> > Customer complaint lost picture had sound then dead.
> > Took apart and checked found H.O.T blown and secondary b+ fuse blown
> >
> > So Checked for bad connections, sested some surrounding electrolitics
and
> > replaced parts turn on pops fuse. HOT ok
> > MAybe it's too close to chistmas and too long of a day but this one is
a
> > little strange
> >
> > Replaced Q3208 1148-01 sub'd 2sd1880
> > FX3408 2A 250V pigtail
> >
> > There aren't any obvious shorts or any 'smoking guns' to speak of.
> > I guess I could replace the board if it's avalible, I haven't checKed
yet
> > Its been a busy day everbody wants stuff before christmas.
> >
> >
> >
> >
> > Peter Oliver
> > Tucson Radio TV
> >
> >
> >
> >
> > _________________________________________________________________
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