[TechAssist] Re: RCA F27201GG (CTC 169CAQS) VERT DEFLECTION?
- From: "al m" <ampm@xxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Fri, 26 Mar 2004 11:01:14 -0500
Well I resoldered every joint in the vertical section. Like I said I haven't
seen this line.
Al Marquardt
ampm@xxxxxxx
Al Marquardt Electronic Repair
206 W Main
Girardville Pa. 17935
----- Original Message -----
From: "Jim Shupe" <jim@xxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, March 26, 2004 8:39 AM
Subject: [TechAssist] Re: RCA F27201GG (CTC 169CAQS) VERT DEFLECTION?
> Sounds to me like the old "it never did that til YOU
> worked on it" syndrome to me. RCA typically defeats
> the vertical during degauss in their designs.
>
> The worst thing you can get into is trying to fix
> something that ain't broke.
>
> Jim Shupe, CET
> Lloyd's TV
> Yucca Valley, CA
>
> --- al m <ampm@xxxxxxx> wrote:
> > Not sure all I know is it was here before and the
> > picture was all stretched
> > out and he said there was a line. I never saw the
> > line and to this day still
> > haven't seen the line.
> > Al Marquardt
> > ampm@xxxxxxx
> > Al Marquardt Electronic Repair
> > 206 W Main
> > Girardville Pa. 17935
> > ----- Original Message -----
> > From: "Bruce Tiedeman" <btied@xxxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Thursday, March 25, 2004 2:01 PM
> > Subject: [TechAssist] Re: RCA F27201GG (CTC 169CAQS)
> > VERT DEFLECTION?
> >
> >
> > > Al when the set is first turned on look at the
> > screen and see if you see a
> > > faint vert (deflection) line about 1\4' high
> > before the picture comes in?
> > > Did the customer send this back for this type of a
> > problem? It does not
> > > affect picture once it is on.
> > >
> > > Bruce.
> > > ----- Original Message -----
> > > From: "al m" <ampm@xxxxxxx>
> > > To: <techassist@xxxxxxxxxxxxx>
> > > Sent: Thursday, March 25, 2004 1:07 PM
> > > Subject: [TechAssist] Re: RCA F27201GG (CTC
> > 169CAQS) VERT DEFLECTION?
> > >
> > >
> > > > I got the same problem here. I haven't seen the
> > problem yet. Customer
> > says
> > > > it only happens when they turn it on. Original
> > problem was picture was
> > > > stretched and the line when turned on. Caps in
> > the vertical section
> > fixed
> > > > that.
> > > > Went over the regulator and changed CR4118 and
> > the thing went out. Came
> > > back
> > > > 2 weeks later with this line thing??????? I
> > thought I had it fixed when
> > > the
> > > > picture came up OK. Never have seen the line.
> > > > Al Marquardt
> > > > ampm@xxxxxxx
> > > > Al Marquardt Electronic Repair
> > > > 206 W Main
> > > > Girardville Pa. 17935
> > > > ----- Original Message -----
> > > > From: "Wayne Vanaman"
> > <Wayne@xxxxxxxxxxxxxxxxxxxxx>
> > > > To: <techassist@xxxxxxxxxxxxx>
> > > > Sent: Thursday, March 25, 2004 12:17 PM
> > > > Subject: [TechAssist] Re: RCA F27201GG (CTC
> > 169CAQS) VERT DEFLECTION?
> > > >
> > > >
> > > > > Normal operation.
> > > > > Vertical is blanked during degauss.
> > > > > If this is a "problem" turn the main screen
> > down a lttle.
> > > > >
> > > > > Wayne Vanaman
> > > > > Omega Electronics
> > > > > 6904 W Fairfield Dr
> > > > > Pensacola, Fl. 32506-3310
> > > > >
> > > > > Wayne@xxxxxxxxxxxxxxxxxxxxx
> > > > > WWW.PensacolaTVRepair.Com
> > > > >
> > > > > 850-456-5995 voice
> > > > > 850-458-6369 fax
> > > > >
> > > > >
> > > > > ----- Original Message -----
> > > > > From: "Bruce Tiedeman" <btied@xxxxxxxxxxxx>
> > > > > To: <techassist@xxxxxxxxxxxxx>
> > > > > Sent: Thursday, March 25, 2004 10:17 AM
> > > > > Subject: [TechAssist] RCA F27201GG (CTC
> > 169CAQS) VERT DEFLECTION?
> > > > >
> > > > >
> > > > > > "Momentary no vert deflection then OK". At
> > start up.
> > > > > > I hope some one can shed some light on this
> > problem, At turn on you
> > > see
> > > > a
> > > > > > collapsed vert deflection (about 1\4"
> > deflection) then I hear the
> > > relay
> > > > > > click an the set comes on full deflection as
> > the CRT heaters lights
> > up
> > > > the
> > > > > > tube. The regulation is good around 143
> > volts similar in standby.
> > > > > > I did change the cr4118, Q4402 and Q4202.
> > Soldered all board
> > > connections
> > > > > in
> > > > > > Vet circuit. Replaced C403K.
> > > > > > I am starting to go around in circles on
> > this set. Trying to figure
> > > out
> > > > > the
> > > > > > theory of operation. I am working off of a
> > CTC169 print but has
> > > > different
> > > > > > parts than shown in data base. U4501 the
> > vert drive switch shows a
> > > drive
> > > > > > pulse OK at turn on.
> > > > > > . Sorry if my explanation is vague. I also
> > changed the degaussing
> > > switch
> > > > > > transistor!
> > > > > > As soon as I hit the tack switch the vert
> > line shows up, then the
> > > relay
> > > > > > sounds and the picture comes in ?
> > > > > > I don't want to send out this set as is. The
> > original condition was
> > > > > > regulator problem which has been repaired ,
> > then I noticed this.
> > > Should
> > > > > not
> > > > > > see any kind of visible deflection this soon
> > at turn on?
> > > > > >
> > > > > > Bruce.
> > > > > >
> > > > > > B&T Electronics
> > > > > > 139 Margaret St
> > > > > > Sarnia Ontario
> > > > > > Canada
> > > > > > N7T 2Y3
> > > > > > 519 344 1850
> > > > > >
> > > > > >
> > > > > >
> > > > >
> > > >
> > >
> > >
> >
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