[TechAssist] Re: CTC203AA5 F27338
- From: Al Gutz <alg@xxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Mon, 08 Dec 2003 22:27:18 -0500
Barry
Will send you a picture of the xray cct.
What is the B+ going to the collector of the HOT?
Al G
Barry Thompson wrote:
>
> Replaced Q!4902 SM Same thing. Removed it and the sets ok.I am using a
> ctc203ax1 schematic and the shutdown circuit is a little differant.I beleive
> there is only 2 resisters, 1 zener and 1 pnp sm transister. could someone
> send me the values of these.Thanks Barry
> barrystv@xxxxxxx
> Barrys TV
> 613 224 3406
> Ottawa.Canada.
> ----- Original Message -----
> From: <tvservice@xxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Monday, December 08, 2003 4:21 PM
> Subject: [TechAssist] Re: CTC203AA5 F27338
>
> > I have used cTC187 crts and yokes on some CTC203 chassis without shutdown
> > problems, however it is possible.
> > check this:
> >
> > ----CTC203 F32669
> > Shutdown cycles off/on.
> > Defeat shutdown by removing CR14901 MAY NOT stop cycling off/on
> > Replace leaky shutdown transistor Q14901 or Q14902- Original Message -----
> >
> > Robert
> > tvservice@xxxxxxxxxxxxx
> > H & H Electronics Inc
> > Dallas, TX
> >
> > From: "Barry Thompson" <barrystv@xxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Monday, December 08, 2003 11:55 AM
> > Subject: [TechAssist] CTC203AA5 F27338
> >
> >
> > > Hi All: I need some opinions on this set.I replaced shorted HOT and
> > > resoldered L14401.This set now comes on with raster and shuts down and
> > > resets and comes back again and again. Using the chipper checker I get
> xrp
> > > shutdown errors.I have checked all the components in the xrp shutdown
> > > circuit.I am using crt from a ctc 187 for my bench jig which I have used
> > > with other 27" ctc203aa5(with different model numbers) with
> success.could
> > it
> > > be the mismatch yoke causing the problem.Thanks Barry
> > > barrystv@xxxxxxx
> > > Barrys TV
> > > 613 224 3406
> > > Ottawa.Canada.
> > >
> > >
> >
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