[TechAssist] Re: Dead Zenith M#Z25X22S
- From: "GJCHAMBERS" <gjchambers@xxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Wed, 19 Sep 2001 18:02:55 -0300
i have found the horiz output shorted from base to emitter, and base to
collector is ok,
coll. to emitter ok as well, but will not start up if this short is present.
gary
Gary Chambers
Chambers T V
Bradenton,Florida
Since 1982
----- Original Message -----
From: <gulftech@xxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, September 19, 2001 12:53 PM
Subject: [TechAssist] Re: Dead Zenith M#Z25X22S
>
> Dan,
>
> Had a friend from another shop call me yesterday who just fixed a Zenith
> with problems like you describe. It was a bad vertical output IC. I had
> seen that on several Philips sets, but may see it on others now, too.
>
> I pass this along with the hope that it helps.
>
>
> Ken Smith
> Gulf Technical Services
> 3034 Gulf Breeze Parkway
> Gulf Breeze, FL 32561
> 850-934-8324 (Voice) 850-932-0819 (Fax)
>
> -----------------------
>
>
> On Tue, 18 Sep 2001 19:54:41 -0500 "Webster TV" <webstertv@xxxxxxx>
> writes:
> >
> > Need help on this Zenith, unit is dead, relay clicks and in about 5
> > seconds
> > it sounds like it goes into shutdown. Checked all voltages and
> > waveforms in
> > power supply, nothing seems to be way off, when set shutsdown set
> > looses the
> > 14.7v and 9v source voltage, 5v source stays OK. Defeated shutdown
> > circuit
> > according to SAMS instructions, by removing diode DX3006 from
> > circuit, set
> > still shutsdown. Tried disconnecting tuner as have had problem with
> > tuner
> > causing same symptom, but didn't help.ANY SUGGESTIONS!
> > Also have checked transisters in power supply and horiz.circuit.
> > Dan
> > Webster
> >
> > Webster's TV
> >
> > Help make your TechAssist online repair tips
> > database better! Submit your fixes here:
> > http://www.circuitwork.com/techassist/tip/#tips
> > To unsubscribe write to:
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> > with unsubscribe in the subject line.
>
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