[TechAssist] Re: toshiba 50A50 chassis TAC0051 convergence problems
- From: "markbrock" <markbrock@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 11 May 2004 09:00:58 -0500
Your probably right Philip, I'm hoping that as a last resort only, do you
have the access to service menu? If its inside the dcu I'm settin aside as
customer gave me the set, 300 was his max ? go figure, only 2 years old..
its just the blue pincushion vertical that I'm needing to adjust, but since
there is no movement in the customer menu for up and down I'm sure its a DCU
issue.
brock
----- Original Message -----
From: "Phillip R. Hull" <phil245@xxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, May 07, 2004 9:43 AM
Subject: [TechAssist] Re: toshiba 50A50 chassis TAC0051 convergence problems
> These sets had DCU units go bad. remove and check solder first
(Digital
> convergence unit)
> Phillip R Hull STET
> phil245@xxxxxxxxxxxxx
> FAX 517--569-3075
> Professional Technicians only
> ----- Original Message -----
> From: "markbrock" <markbrock@xxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Friday, May 07, 2004 8:12 AM
> Subject: [TechAssist] Re: toshiba 50A50 chassis TAC0051 convergence
problems
>
>
> > Yep, I saw that and a couple others near the same model but I can't
> > convince myself its one of the stk's, I guess I'll change the other
stk,
> > and find out, not sure what a yoke problem would do, there usually bad,
> or
> > get warm, not shorted but possibly windings have crossed between
varnish,
> > its an odd problem and since the lines are curved I keep pushing for it
> > being before the yoke, but can't adjust up and down convergence.
wonder
> > if the stk I put in was bad off the shelf ? thanks Jeff, I'll put the
> > model and chassis in the subject line, next time and let you know what I
> > find.
> > brock
> >
> > ----- Original Message -----
> > From: "Intrepid Video Support" <support@xxxxxxxxxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Thursday, May 06, 2004 4:53 PM
> > Subject: [TechAssist] Re: toshiba 50A50 chassis TAC0051 convergence
> problems
> >
> >
> > > Brock...
> > > From Tech Repair CD:
> > > Toshiba\61HX70 TAC0069\Bad Convergence Especially At Bottom (picture
Is
> > Full Screen - Good Color And
> > > Sound)\Picture is pulsing/fluttering rapidly and is sort of divided up
> > (vertically) by odd* horizontal
> > > portions of the picture itself\\TAC0069\STK392-110 ICs\\\\\\\\
> > >
> > > Usually one IC is for blue, the other is for red.
> > >
> > > Also...please place the mode and circuit in the subject line. Makes it
> > easier for us when searching the
> > > archives.
> > > Jeff
> > > --
> > > Intrepid Video TV/VCR Repair
> > > 263 S Front St, Steelton PA 17113
> > > 717-939-7708; (F) 717-564-4952
> > > www.intrepid-video.com www.tech-repair.net
> > > ----- Original Message -----
> > > From: "markbrock" <markbrock@xxxxxxxxxxxxx>
> > > To: <techassist@xxxxxxxxxxxxx>
> > > Sent: Thursday, May 06, 2004 4:02 PM
> > > Subject: [TechAssist] toshiba convergence problems
> > >
> > >
> > > model 50A50 chassis TAC0051, fuse 851 blown, R7716 burnt on
convergence
> > bd,
> > > changed stk329110 and fuse and put in 2.2 ohm for R7716 ? not real
> sure.
> > > looks like it compared to other convergence ic R's, now comes up
with
> > blue
> > > convergence bad, it appears that the convergence ic I changed is for
> blue
> > ?
> > > I can move the cursor left and right in menu to move the cross hatch
but
> > not
> > > up and down? do these two conv. IC's work in conjunction ? not
really
> > pin
> > > coushion, as not symmetrical but won't adjust up and down at 9 points,
> am
> > I
> > > fighting yoke problem? any help appreciated
> > > brock
> > > Brock Electronics
> > > R.R.4 box 237
> > > 5208 cr.3385
> > > Independence Ks. 67301
> > > 620-331-0235
> > > fax 331-7191
> > >
> > > markbrock@xxxxxxxxxxxxx
> > > Zenith*Philips*Peavey*Fender*Crate
> > > we work on all brands,makes,models
> > > of anything that plugs in the wall
> > >
> > >
> >
>
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