[TechAssist] Re: RCA CTC169CA PWR Supply-Horiz Prob?
- From: "al m" <ampm@xxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 12 May 2003 09:35:47 -0400
I had this problem once on a ctc?. It ended up being the run regulator
circuit. It wasn't working and the standby regulator was trying to run the
set which will give you the low power. Just a thought . Check to see if the
duty cycle is on pin 2 of U4101. Do you have manual?
al marquardt
ampm@xxxxxxx
----- Original Message -----
From: "Bruce Tiedeman" <btied@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Sunday, May 11, 2003 6:36 PM
Subject: [TechAssist] Re: RCA CTC169CA PWR Supply-Horiz Prob?
>
> Peter possibly the replacement flyback could be bad. I also wonder if you
> used generic HOT or original. The regulator sounds like it is Ok but some
> thing is pulling down the B+ after start up.
> Bruce.
>
> B&T Electronics
> 139 Margaret St
> Sarnia Ontario
> Canada
> N7T 2Y3
> 519 344 1850
> ----- Original Message -----
> From: "Peter W. Blakeman" <pwblakeman@xxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Sunday, May 11, 2003 5:37 PM
> Subject: [TechAssist] RCA CTC169CA PWR Supply-Horiz Prob?
>
>
> >
> > When this set came in the flyback was smoking. I replaced it. Then I
> > noticed the pix out of sync and dim. I checked the 140V. It is 139V when
> > the set is off, but drops to 116V when the set is turned on. I replaced
> > the usual caps in the regulator circuit. No help. There is also raspy
> > horizontal sound
> > coming from the set. Ocasionally it will shut down. I also replaced
C4401
> > and CR4401. I checked C4141. It checked ok. Maybe I missed something in
> > the horizontal circuit. Any ideas on this one?
> > TIA,
> > Peter Blakeman
> > Blakeman Electronics
> > Tyler, Tx 75704
> >
> > ________________________________________________________________
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