[TechAssist] Re: CCZ132AT01
- From: HSWAD@xxxxxxx
- To: techassist@xxxxxxxxxxxxx
- Date: Fri, 15 Aug 2003 14:53:32 EDT
If I were troubleshooting that unit I would first clean the mode switch and
make sure if it is circuit board mounted that the arrows on the switch were
lined up correctly, the VCR mechanism was is the eject position (check it
manually to make sure it loads and unloads correctly) . If the problem still
exists
unsolder the vertical IC. If trouble still persists get out your scope and one
by one observe the DC waveforms on the DC supplies at the output of the power
supply to make sure they are clean. That would be on the cathode ends of the
diodes except maybe one that produces the negative voltage for some functions.
If they are not perfectly clean change the filter and then try it. I usually
just change the four or five filters just to make sure. If that doesn't do the
trick let me know. Hollis Bates, Field Engineer-retired, Lewiston, Maine,
HSWAD@xxxxxxx
In a message dated 8/15/03 11:09:54 AM
Eastern Daylight Time, busbin@xxxxxxxxxxxxx writes:
> Subj:[TechAssist] Re: CCZ132AT01
> Date:8/15/03 11:09:54 AM Eastern Daylight Time
> From:<A HREF="mailto:busbin@xxxxxxxxxxxxx";>busbin@xxxxxxxxxxxxx</A>
> Reply-to:<A
> HREF="mailto:techassist@xxxxxxxxxxxxx";>techassist@xxxxxxxxxxxxx</A>
> To:<A HREF="mailto:techassist@xxxxxxxxxxxxx";>techassist@xxxxxxxxxxxxx</A>
> Sent from the Internet
>
>
>
> I removed VCR mechanism as it should not be needed for start up. I get the
> same funny power supply readings with the high voltage module disconnected
> also.
>
> Thanks
> ----- Original Message -----
> From: "peggs" <peggs@xxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>; <techassist@xxxxxxxxxxxxx>
> Sent: Wednesday, August 13, 2003 6:48 PM
> Subject: [TechAssist] Re: CCZ132AT01
>
>
> > Are the VCR Motor(s) trying to run ???
> > maybe led/Prism kit is needed.
> > Or slipping belt
> >
> > Peggs
> >
> >
> > At 01:29 PM 8/13/03, BUSBIN ELECTRONIC wrote:
> > >PHILLIPS TV/VCR MODEL CCZ132AT01, chassis unknown.
> > >Unit powers up to full screen and stays on 15 to 20 seconds then dies. I
> > >have no print so am running on experience when checking power supplies,
> > >all seem normal except the 5vdc line, it drops tp 2.8vdc when set shuts
> > >off. Am I not finding a feedback line? Any cures or suggestions
> > >appreciated. Occasionally the 5vdc does not come up when unit is first
> > >plugged in but eventually fires up.
> > >Thanks,
> > >Harry L Busbin
> > >
> >
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