[TechAssist] Re: Akai red convergence
- From: "tvservice" <tvservice@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Wed, 26 Oct 2005 12:47:11 -0500
sounds like a drive problem with the conv. gen board (dcu) or bad yoke.
I have not seen any yoke problems with these sets
Robert
tvservice@xxxxxxxxxxxxx
H & H Electronics Inc
http://supertek.igniteinc.biz
----- Original Message -----
From: "markbrock" <markbrock@xxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, October 26, 2005 5:58 AM
Subject: [TechAssist] Re: Akai red convergence
> thanks guys, I did what you said, and I usually change em both myself,
> but not on these that have one for vert and one for Horz,, unless both are
> bad, anyway, swapped, em, problem did not follow the IC, changed them
> both with new sanyo's, ( thinking it was a marriage thing ? ) { they are
> just audio amps } same, checked all the resistors again, still the same,
> the one stk gets way to hot to be normal, if left on for 5 minutes will
> probably burn up, I've added heat sink while I was trying to determine if
I
> could get it closer to alignment, still got pretty hot, it is being
way
> over driven, can the DCU have this out of adjustment enough to cause it
> to draw more current ? I guess so,
>
> 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
> ----- Original Message -----
> From: "markbrock" <markbrock@xxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Tuesday, October 25, 2005 6:20 AM
> Subject: [TechAssist] Akai red convergence
>
>
> > model PTH5498
> > this set came in with bad convergence, all three bowed down from top,
> the
> > fuse under ICZ104 was open, so I changed this STK392-040, now the
> > convergence is ok for green and blue but red is actually worse and the
ic
> > gets hot, fuse still in tack but red convergence is so far out that
there
> > is not way to correct, this is a sanyo ic and I know there is some
> > discussion about after market stk's, the printing is smaller. I didn't
> > follow the thread on this discussion because I always tell em, original
> > only. and its original sanyo ? not sure what that means, but since
the
> > red and blue horz and vert are ok I'm suspecting something else ? one
of
> > these is ic's control vert and one is horz if I remember correctly, I
> > replaced only the one with the bad fuse ? anyone ? .. help. red yoke
?
> > how do I test it -vs- replacement.
> > 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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