[TechAssist] Re: toshiba convergence problems

Just worked on a TP50F90 and the IC's have all three colors in them. One for
horizontal, one for vertical. Do you have a print?
Al Marquardt
ampm@xxxxxxx
Al Marquardt Electronic Repair
206 W Main
Girardville Pa. 17935
----- Original Message ----- 
From: "markbrock" <markbrock@xxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, May 07, 2004 8:13 AM
Subject: [TechAssist] Re: toshiba convergence problems


> next on my list, this one's a little tough to get to but guess I've put it
> off long enough,  was hoping something simpler,  I'll change the red ic
and
> see but have my doubts,
> brock
>
> ----- Original Message -----
> From: "Kevin" <kevintv@xxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Friday, May 07, 2004 1:39 AM
> Subject: [TechAssist] Re: toshiba convergence problems
>
>
> > Did you replace both convergence IC's?  I always replace both as it is
> > sometimes difficult to follow the circuit as to which one is bad, and
> > more importantly, if one has failed the other one may be close behind.
> > HTH
> >
> > Kevin Wilks
> > Kevin's TV & Video Repair
> > Penticton BC Canada
> > kevintv@xxxxxxx
> >
> >
> > -----Original Message-----
> > From: techassist-bounce@xxxxxxxxxxxxx
> > [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of markbrock
> > Sent: Thursday, May 06, 2004 1:02 PM
> > To: techassist@xxxxxxxxxxxxx
> > 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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