[TechAssist] Re: fix. RCA F35700SB/ CTC169BD5 slick red/retrace betweenchannels

  • From: "Barry Thompson" <barrystv@xxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Mon, 9 Feb 2004 11:14:38 -0500

I have a some do that,and when you turn it of it goes red.I don't think it
is a bade tube.
barrystv@xxxxxxx
Barrys TV
613 224 3406
Ottawa.Canada.
----- Original Message ----- 
From: <tvservice@xxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, February 09, 2004 9:56 AM
Subject: [TechAssist] Re: fix. RCA F35700SB/ CTC169BD5 slick red/retrace
betweenchannels


> seen it a couple hundred times
> though usually just bright white raster with retrace lines
> suspect tube may be soft causing the b&w tracking (gray scale) to be
off...
> red raster
>
> Robert
> tvservice@xxxxxxxxxxxxx
> H & H Electronics Inc
> Dallas, TX
>
> ----- Original Message ----- 
> From: "Phil Bader" <tjanphyl@xxxxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Saturday, February 07, 2004 9:52 AM
> Subject: [TechAssist] fix. RCA F35700SB/ CTC169BD5 slick red/retrace
> betweenchannels
>
>
> > Thanks to all.
> > It was Q2906, with about 50 ohms leakage. I happened to have an RCA
> > transistor #147665 that also crossed to an NTE159 that works great.
> > Funny, this is a lum buffer transistor,not a red driver, but why did I
> > get a bright red flash? not green or blue?
> > And what made you zero in on Q2906? Would not be my first choice.
> > ;-)
> > BTW I will also change CR4118 as precaution before it leaves the shop.
> > Phil
> >
> > Webster TV wrote:
> > >
> > > Phil,
> > >
> > > I just fixed a CTC169, with the same problem. The fix was replacing
> Q2906
> > > luminance buffer transistor. I used a NTE 159 and it worked fine.
> > >
> > >                                     HTH
> > >                                     Dan Webster
> > >                                     Webster's TV
> > >                                     Shullsburg, Wi.
> > > ----- Original Message -----
> > > From: "Phil Bader" <tjanphyl@xxxxxxxxxxxxxxx>
> > > To: <techassist@xxxxxxxxxxxxx>
> > > Sent: Friday, February 06, 2004 4:12 PM
> > > Subject: [TechAssist] RCA F35700SB/ CTC169BD5 slick red/retrace
between
> > > channels
> > >
> > > > Strange. Customer complaint was "dead".
> > > > I powered it on in shop.had a slightly too bright picture with
retrace
> > > > thru pix.
> > > > Also when I change stations, while between, the screen flasher to a
> > > > bright red slick raster with retrace, only appearing while in the
> > > > transition between stations.(split second).
> > > > The white OSD characters when i push "menu" have a red haze around
> them.
> > > > I lowered the G2 slightly and lost the retrace in the normal
picture.
> > > > Any histories on this?
> > > > Phil Bader
> > > >
> > > > --
> > > >
> > > > Philip Bader
> > > > Jan Phyl TV Inc. (estab. 1976)
> > > > 3420 Recker Hwy. Winter Haven, Fl. 33880
> > > > Fax (863) 299-8821
> > > > email: tjanphyl@xxxxxxxxxxxxxxx
> > > >
> > > >
> > > >
> > >
>
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> > -- 
> > Jan Phyl TV Inc
> > 3420 Recker Hwy.
> > Winter Haven, Fl. 33880
> > fax: 863-299-8821
> > (professional. technician calls only)
> >
>
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