[TechAssist] Re: UPDATE - Re: Intermittent Shutdown - only one set now
- From: "KenyD" <ken.dyche@xxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sat, 5 Jul 2003 15:40:47 -0400
Jeff, or anyone else....
Would that be "from a cold start-up, tries three times and won't come on-
remains dead" or is it like my symptom "shuts down after 5-10 mins, retries
(on it's own) to start-up three times and remains off - when you press
power, it comes back on immediately for another 5-10 mins"?
I'd hate to buy an unneccessary flyback on this one. It's already a no
profit job.
Ken Dyche
Mississauga T.V. Inc. (est. 1952)
Mississauga, Ontario
Canada
----- Original Message -----
From: "Jeff Farnsworth" <jlfonz@xxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Saturday, July 05, 2003 10:27 AM
Subject: [TechAssist] Re: UPDATE - Re: Intermittent Shutdown - only one set
now
> 3 attempts to start up is indicitive of a bad flyback in the 197's I
> believe its no different in the 203's
>
> Part time TV doctor
> Avalon, Wi
>
> ----- Original Message -----
> From: "KenyD" <ken.dyche@xxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Saturday, July 05, 2003 7:41 AM
> Subject: [TechAssist] UPDATE - Re: Intermittent Shutdown - only one set
now
>
>
> > Thanks guys. The mod to the Daewoo worked great. I also installed the
> > 33ohm res across B/E of HOT and it ran all night fine. However, the
> > CTC203AX7 is still breaking down after 5-10 mins. I removed L14401 and
> > cleaned it completely before re-installation. Same fault, except the
only
> > thing I can add is that when it shutsdown the relay clicks off, attempts
> to
> > come on again two or three times with relay clicking back and forth.
Then
> > when it shuts down, no need to unplug it, just pressing power fires it
> back
> > up. Any other ideas? I'm still wondering about the modification re:
the
> > 18xxx series parts which aren't in this unit.
> >
> > Thanks again;
> >
> > Ken Dyche
> > Mississauga T.V. Inc. (est. 1952)
> > Mississauga, Ontario
> > Canada
> > ----- Original Message -----
> > From: "Eric Manuel" <tvman@xxxxxxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Friday, July 04, 2003 7:43 PM
> > Subject: [TechAssist] Re: Intermittent Shutdown - two different sets
> >
> >
> > > Hi Ken in the Daewoo set replace C404 with a 3.3 cap also put a 33 ohm
> > > resister across the base and emitter of the hot transister. On the
> > > CTC203
> > > resolder the coil that connects to the base of the hot from the driver
> > > transformer L14401 very small leads you may have to take it out and
> > > scrape
> > > the leads..Eric
> > > Eric Manuel
> > > Deer Lake Nfld
> > > Canada
> > >
> > > KenyD wrote:
> > > >
> > > > We're working on two seperate sets with intermittent shutdown.
One's
> an
> > > > RCA, the other a Daewoo. We've hit a roadblock and were wondering
if
> > anyone
> > > > has any clues.
> > > >
> > > > DAEWOO DTQ26SF1C- Intermittent Shutdown every few days, unplug
set
> > and
> > > > plug back in and it's OK. We changed the eprom and a few caps
under
> > > > speculation...same fault. Any ideas?
> > > >
> > > > RCA CTC203AX7 - Intermittent shutdown after 10-30minutes, unplug
and
> > plug
> > > > back in and it's OK. We changed eprom, not change. We then rec'd
the
> > > > modification regarding some resistors and a cap off pin23 of U18xxx.
> > > > However, I can't find any parts with an 18xxx series, nor are there
> any
> > > > indication of "blanks" showing 18xxx series parts. Any ideas?
> > > >
> > > > Thanks in advance.
> > > >
> > > > Ken Dyche
> > > > Mississauga T.V. Inc. (est. 1952)
> > > > Mississauga, Ontario
> > > > Canada
> > > >
> > > >
> >
>
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