[TechAssist] Re: Sony KV27V22 had intermit. video,then dead.OK here]

yes i have seen this.
when i do though i test the set for an extended period of time / untill i am
confident that all is well with the unit. then i unplug the unit wait
overnight and then retest it again when cold first thing in the morning.(
found a board that only failed when cold or flexed when cold. i never found
the bad trace...sony replaced the board under warranty)
if all goes well after beating the set up after a cold start,
i feel ok letting the set go home.
thanks

Joe Blanks

monmouth stereo
450 hwy 35
(broad street)
shrewsbury,n.j. 07734


----- Original Message ----- 
From: "Philip Bader" <tjanphyl@xxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, May 30, 2003 5:47 PM
Subject: [TechAssist] Sony KV27V22 had intermit. video,then dead.OK here]


>
>
>
> Customer said for a long time it was intermittantly losing it's
> picture,tho the sound stayed.Then it finally lost pix and sound and was
> dead.
> I find no shorts,HOT,SMPS all seem OK. I did notice the vert output
> IC561 had pretty bad ring cracks on all pins.(Not lose but visable rings
> around them.) I resoldered it,the H. drive transformer,some ground
> stakes at edge, HOT,etc.Powered it up with perfect operation.Shook and
> tapped chassis.Has been on now an hour OK.
> I should have just ran it to duplicate the symptom,but no,I jumped right
> in. Any history of this senereo on this model?
> Would the vert iC561's pin solder cause this?
> Phil Bader
> -- 
> Philip Bader
> Jan Phyl TV Inc. (estab. 1976)
> 3420 Recker Hwy. Winter Haven, Fl. 33880
> Fax (863) 299-8821
> email: tjanphyl@xxxxxxxxxxxxxxx
>
>
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