[TechAssist] Re: Zenith Z52Z95D 9-1690-1 Convergence repeat failure
- From: "Ed" <edb3@xxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 24 Jun 2004 12:19:14 -0700
Shaun, usually when the convergence ic's in zenith sets fail after a short
time the Dc off sets are not properly set, and the convergence may look
great, but the convergence ic's are driving the conv yokes too hard, causing
the ic's to fail. If you cant find the procedure let me know i can probably
dig it up, dont have it with me today. Basicly what you do is disable the
conv correction by pressing the freeze button (i think ) with the cross
hatch on, when you do that the red is offset to the right of green, and the
blue is left of green, by how much i cant remember, if not set right, will
cause the ic's to fail, it is adjusted with the centering magnets
Ed Video Pro-Tech
Mesa AZ----- Original Message -----
From: "Shaun" <satguy@xxxxxxxxxxxxx>
To: "tech" <techassist@xxxxxxxxxxxxx>
Sent: Thursday, June 24, 2004 11:32 AM
Subject: [TechAssist] Zenith Z52Z95D 9-1690-1 Convergence repeat failure
> This set plays for about a week or two with a new 9-1690-1 module then it
> fails. I already thought it is probably just Zenith sending me out
defective
> modules, but I just thought I would ask if there is anything I am missing
on
> the power supply module or any where else. When it fails it burns R1460 or
> R1461 and sometimes burns R4162 or R4163 which means one or the other of
the
> STK392-110 goes bad. Thanks for any advise on this set.
>
> P.S. I am sending this message at 12:30 PM MST 6/24/04. Lately all the
> messages I send don't show up for a long time so I am going to see when
this
> one posts.
>
> Shaun
>
> Advanced Electronics
> 224 West Riverview Ave.
> Fort Morgan, CO 80701
>
>
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