[TV] Re: Sony KV35S65 SAMS 4699

["danny williams" <wizhd@xxxxxxxxxxxxxxxx>]

The ones i've encountered have kept hv, just shut down video to crt."aka" ik
blanking. yes arching will certanly cause micro to shutdown hv drive.   Dan
W
----- Original Message ----- 
From: "Wayman Simmang Sr." <waymansr@xxxxxxxxxxxxx>
To: <tv@xxxxxxxxxxxxxxx>
Sent: Thursday, September 16, 2004 4:47 PM
Subject: [TV] Re: Sony KV35S65 SAMS 4699


> Hi Techs: I notice a 32" Sony showed up today with the same symptoms I
have been trying to get rid of for the better part of this year so far.
Symptom: plays perfectly no problem whatever, but at random times, possibly
days apart or more the picture and raster will disappear leaving the sound
perfect and changing the channels perfectly. I have been advised that it
might be an IK problem caused by the picture tube being weak. It shows no
signs of weakness. I have found that the high voltage and horizontal
deflection have ceased. Cant find anything wrong with the horiz output or
drive. There is no drive when this happens so I replaced IC351 which
includes the horiz drive signal and checked it with the scope. Changed parts
in the horiz drive and checked to see that the IC351 had its 9V. power when
the set is down. It does.  What I would like to know is when IK kicks in is
the horizontal drive supposed to be cut off. And do you think it might be
cause by the picture tube arcing !
>  imperceptibly. Thanks for any help.. My customer must hate me because I
cant find the problem. Wayman at Simmang's TV
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