[TechAssist] Re: RCA P46813BL PTK195AA odd converg. problem FIX
- From: "Larry E" <videotech@xxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Wed, 5 Oct 2005 14:52:56 -0400
Hi Guys, final fix was a defective U19700 STK730-130 on the rebuilt conv.
power supply board, why it would
cause this symptom is beyond me but replacement of the IC returned set to
normal, Larry E
Larry Eastman
American TV & Electronics
Crystal River, Fl. 34428
----- Original Message -----
From: "Larry E" <videotech@xxxxxxxxxxxx>
To: "tech-assist" <techassist@xxxxxxxxxxxxx>
Sent: Friday, September 23, 2005 9:54 AM
Subject: [TechAssist] RCA P46813BL PTK195AA odd converg. problem
> Hi Guys, this set was initially dead, main fuse, HOT & Flyback were
changed and set came up but now has
> typical bowed convergence problem, customer claims set had no convergence
issues before set died. I checked
> the Convergence pwr. supply board plug and the only voltage I had was the
+24, installed a rebuilt 250686
> and the set came up with convergence still bowed, heres the odd part, If I
go into the cust. menu and pull up
> convergence and choose red or green adjustment, the set does not go to a
cross, the entire screen goes black,
> the audio quits, there is a soft click or pop in the speakers and then the
set pops back on with a perfectly
> converged picture and good sound??? It`s like the entire set is turned off
and immediately back on but I don`t
> hear the HV collapsing just that soft click. once it comes on with a good
pix/audio I can go into convergence
> set-up and the cross is there and it is adjustable, set may go bad in 20
seconds or may run 20 minutes but
> shutting off set for 5 minutes or trying to run for long periods of time
will cause convergence failure,
> ANY IDEAS? worked on a lot of 195`s never seen or heard of anyone having
this problem, sorry for the long
> post, Larry E
>
> Larry Eastman
> American TV & Electronics
> Crystal River, Fl. 34428
>
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