[TechAssist] Re: fix: RCA Proscan PS35123, CTC169EJ5 slight video smear to right?]]

  • From: "Wayne Vanaman" <Wayne@xxxxxxxxxxxxxxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Wed, 18 Feb 2004 07:46:54 -0600

Been there.  Done that.

Now I keep a couple of bottles of fingernail polish, bright red, light
brown.  When a part is going to come out I put a dab-o-polish on it.  The
two colors are in case I am swaping chips from say a junk chassis, I can
keep 'em straight.

I love interup
tions

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: "David Lessard" <mr_fixit@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, February 17, 2004 12:25 PM
Subject: [TechAssist] Re: fix: RCA Proscan PS35123, CTC169EJ5 slight video
smear to right?]]


> As Pegg's would say...it was a brainfart. We've all been there. Just
> recently I was working on a RCA tuner problem. I did the exact same
> thing, replaced the bad chip with the same bad chip. Debugged for an
> hour before I realized I had installed the bad chip (found the new chip
> on the floor next to the bench). It took five minutes to install the
> good chip and the problem went away. This only goes to show that we are
> humans and not androids.
>
> David Lessard
>
> Alexandria Electronics
> 50 Harrison Street
> Alexandria, Ontario
> K0C-1A0
>
> mr_fixit@xxxxxxxxxxxx
>
>
> -----Original Message-----
> From: techassist-bounce@xxxxxxxxxxxxx
> [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Phil Bader
> Sent: Tuesday, February 17, 2004 1:04 PM
> To: techassist@xxxxxxxxxxxxx
> Subject: [TechAssist] fix: RCA Proscan PS35123, CTC169EJ5 slight video
> smear to right?]]
>
>
>
> Well, I really wrestled with my pride on posting this one message.
> Here it goes.
> Yesterday while troubleshooting this set, between my back ache and the
> never
> ending phone calls and walk ins (I'm alone),
> When I carefully unsoldered the defective thermal video switch IC, U1401
> (161079/HCF4052B/NTE4052B), set it aside, opened  the new part bag,
> answered the
> phone.... returned, and RE-INSTALLED the defective IC right back into
> the set.
> I kept cooling this "new" IC and the smear would clear. Finally I found
> the replacement
> next to the set still in the foam,clean pins and all.
> Gad, I feel stupid.
> Well thanks, group, for all the help  offered.
> The fix for the smear was a thermal IC U1401 video switch.
> Very Stupidly Yours,
> Phil
>
> > Philip Bader
> > Jan Phyl TV Inc. (estab. 1976)
> > 3420 Recker Hwy. Winter Haven, Fl. 33880
> > Fax (863) 299-8821
> > email: tjanphyl@xxxxxxxxxxxxxxx
>
>
> Phil Bader wrote:
>
> > I did check out that site.. Ziltch..
> > It was suggested a bad CRT, 200 volt scan-derived electrolytic cap to
> crt
> > board weak,etc.
> > This cannot be the case, as I get good picture with no smear in
> line-in
> > video mode both with the RCA inputs and S-video. Those parts would be
> common
> > to all video and tuner inputs.
> > I have since changed the integrated tuner assy, the video switch IC
> U1401
> > (HCF4052B) and all 'lytics surrounding that IC. If I freeze spray
> around
> > that IC, it clears! (And I've changed it with a new one.) and
> chemically
> > cleaned the board)
> > So it cannot be anything that shares the same circuitry as the RCA and
> > S-video does, because they're OK.
> > Only with tuner input... And as it stays on 10 minutes and more, it
> gets
> > worse. I also notice the contrast is not as good in tuner mode either.
> That
> > seems to go hand in hand with this smear thing.
> > I'm stumped.
> > Hey, RCA experts!
> > Help!.
> >
> >
> > Glen Rhea wrote:
> >
> > > Phil
> > > You should check the history files re: ctc169 at www.wa6ati.com
> > > Glen
> > >
> > > Phil Bader <tjanphyl@xxxxxxxxxxxxxxx> wrote:
> > > After restoring the vertical (prev. post) I notice a good picture
> but
> > > there is definately a video smear to the right of everything, more
> > > noticable with text, of course. I lowered the sharpness and almost
> gone.
> > >
> > > Any histories on video smear with the CTC169's?
> > > Phil Bader
> > >
> > > --
> > >
> > > Philip Bader
> > > Jan Phyl TV Inc. (estab. 1976)
> > > 3420 Recker Hwy. Winter Haven, Fl. 33880
> > > Fax (863) 299-8821
> > > email: tjanphyl@xxxxxxxxxxxxxxx
> > >
> > > --------
>
> --
>
>
> ------------------------------------------------------------------------
> -----
> Lost Password:
> http://www.tech-assist.org  and select "Login Problems?".
> Email Archives:
> //www.freelists.org/archives/techassist/
>
>
> --------------------------------------------------------------------------
---
> Lost Password:
> http://www.tech-assist.org  and select "Login Problems?".
> Email Archives:
> //www.freelists.org/archives/techassist/
>


-----------------------------------------------------------------------------
Lost Password:
http://www.tech-assist.org  and select "Login Problems?".
Email Archives:
//www.freelists.org/archives/techassist/

Other related posts:

  1. Home
  2. techassist
  3. Archive
  4. 02-2004