[TechAssist] Re: Zenith SL3585BT, green screen w/ retrace FIX
- From: gulftech@xxxxxxxx
- To: techassist@xxxxxxxxxxxxx
- Date: Fri, 20 Dec 2002 11:26:54 -0800
Thanks to Bob & Fuzz.
The set is fixed. Problem was a leaky Q5104, 121-1232. Tech said he had
checked all the transistors. Bad one showed good E-B & B-C, but leaky
C-E. Thanks, guys. Big set, outa' here!
Ken Smith
Gulf Technical Services
3034 Gulf Breeze Parkway
Gulf Breeze, FL 32563
850-934-8324 (Voice) 850-932-0819 (Fax)
On Fri, 20 Dec 2002 10:06:00 -0500 "Bob@Bobs tv" <woodman1@xxxxxxxx>
writes:
>
> Ken,
> Have you gone into service menu? What happens when you turn
> the
> screen down? Also the 120k resistors must be unsoldered to get
> correct
> reading. The video output board has like 20 transistors, make sure
> none of
> them are leaky, the small ones that are very close to the heat
> sink @ the
> video outputs, usually cause this problem..
> Bob,
>
> Bobs TV Worcester, ma
>
> woodman1@xxxxxxxx
>
> Main 508-853-1482
> Fax 508-853-1480
> ----- Original Message -----
> From: <gulftech@xxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Thursday, December 19, 2002 10:25 PM
> Subject: [TechAssist] Zenith SL3585BT, green screen w/ retrace
>
>
> >
> > Techs,
> >
> > This TV is proving to be a dog. May end up being the CRT, but I
> don't
> > have a print to verify. My tech has found heavy load on the green
> > driver. If the green cathode is floated, a somewhat normal video,
> > although dark, is present with no green. Have tried filament
> bypass
> > routine, without change. My Sencore will not test this tube.
> >
> > Does someone have a scan of the CRT pcb--9-1298-05. That would
> help a
> > lot. The 120K resistors are all good. My tech has spent far too
> long on
> > this puppy!
> >
> > TIA,
> >
> >
> > Ken Smith
> > Gulf Technical Services
> > 3034 Gulf Breeze Parkway
> > Gulf Breeze, FL 32563
> > 850-934-8324 (Voice) 850-932-0819 (Fax)
> >
> >
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