[TechAssist] Re: toshiba 50A50 chassis TAC0051 convergence problems
- From: "Terry H." <tvdoc@xxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sat, 8 May 2004 07:25:13 -0500
Have you tried just ordering the eeprom for the DCU? Alot cheaper, just
requires alignment. Might save the fix.
----- Original Message -----
From: "markbrock" <markbrock@xxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Saturday, May 08, 2004 7:04 AM
Subject: [TechAssist] Re: toshiba 50A50 chassis TAC0051 convergence problems
> Thanks fellers, I thought Q751 was problem after Walters post, it
wasn't,
> so now there both new, and changed twice, what a pain in the ass, I guess
> its the DCU so there goes the repair, heat and cold and solder no change,
> so doubt its solder joints. thanks again. I'll go a little farther in
the
> dcu but I'll be lucky to get 300 out of this repair total and I'm near
that
> already, damit.
> brock
>
> ----- Original Message -----
> From: "walter wood" <wwood_38478@xxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Friday, May 07, 2004 8:23 AM
> Subject: [TechAssist] Re: toshiba 50A50 chassis TAC0051 convergence
problems
>
>
> > On this set, Q752(STK392-110) is the
> > Red,green,blue horizontal, while Q751 is the R/G/B
> > vertical.
> > I don't have any notes on this one.
> > But I have had bad new parts before.
> > HTH
> > Walter
> > --- markbrock <markbrock@xxxxxxxxxxxxx> wrote:
> > > 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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> > =====
> > Walter Wood
> > Future Tech Home Center
> > 2786 Hwy. 43 N.
> > Lawrenceburg Tn. 38464
> > 931-829-3337
> > Fax 931-829-4044
> > mailto:wwood_38478@xxxxxxxxx
> >
> >
> >
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