[TechAssist] Re: Dead rca CTC169CA2 model# g27220tn
- From: "Phillip R. Hull" <phil245@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 21 Feb 2002 09:30:20 -0500
If not the IC Try a new Y4301 resonator # 200210 I have had these go bad.
Phillip R Hull
phil245@xxxxxxxxxxxxx
----- Original Message -----
From: "Junior E Hurdle" <jselectronics@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, February 20, 2002 10:55 PM
Subject: [TechAssist] Re: Dead rca CTC169CA2 model# g27220tn
>
> so far I have been able to get the B+ to 143-145v by changing the gaps and
> regulator , and when I try to switch the set on I get an 8.8v reading for
> the hz vcc but it only stays a few seconds.So my problem may be the TA8680
> ic. I am using a Nte2324 as the hz output.
>
> ----- Original Message -----
> From: "Damon" <DAMON101@xxxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Thursday, February 07, 2002 1:18 AM
> Subject: [TechAssist] Re: Dead rca CTC169CA2 model# g27220tn
>
>
> >
> > There are several things to check:
> > 1] check C4402 plastic cap located in front of the horiz out (smaller
one)
> > these open up and kill the horiz output.
> >
> > 2} In standby check that your B+ is at 143 - 145 max, if not, adjust
using
> > the B+ adjust pot by the SMPS Ic, if you can't get it down that far,
there
> > is a 2.2uf/100wv cap located right next ot the SMPS Ic that dries out
and
> > causes the standby voltage to shoot up to 200V!!
> >
> > 3] Lastly check cr4118 located beside the SMPS transformer, must have 13
> to
> > 15 volts on it, if not replace it .
> >
> > I have not seen any other problems causing a NO START condition other
than
> > the above mentioned components. Start here.
> > Damon Brunger
> > damon101@xxxxxxxxxxxxxx
> > Telrad Electronic Services
> > Ft Wayne, IN 46815
> > ----- Original Message -----
> > From: "Junior E Hurdle" <jselectronics@xxxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Wednesday, February 06, 2002 8:08 AM
> > Subject: [TechAssist] Re: Dead rca CTC169CA2 model# g27220tn
> >
> >
> > >
> > > ----- Original Message -----
> > > From: Junior E Hurdle
> > > To: techassist@xxxxxxxxxxxxx
> > > Sent: Monday, February 04, 2002 3:28 AM
> > > Subject: Dead rca CTC169CA2 model# g27220tn
> > >
> > >
> > > Hi techs
> > > I am working on this Rca tv which had a shorted hz output. I have
> > replaced the hz op but the set is still dead.
> > > Q4301 (the on/off switch) is giving me a reading of 0.2v when i
> press
> > the power switch.
> > > also at the reg transistor (Q4101) I am reading 157V at collector
and
> > 0V at base and emitter.
> > > also should'nt there be a horizontal vcc present on ic U1001 or evan
> the
> > usual 9v that supplies this ic ?
> > > Please Help
> > > Thankyou
> > > Junior.
> > >
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> >
> >
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