[TechAssist] Re: Sony KV-32xbr400 chassis DX1A No Pic, sound ok

  • From: "Moutons Electronics L.L.C." <moutons@xxxxxxxxxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Sat, 17 Dec 2005 12:18:29 -0600

Jim

That sounds like a possibility but I read the tips on this set and from what 
I can tell if you turn up the G2 you should see there is no vertical. I have 
adjusted the G2 throughout its range and have no reaction, no raster from 
what I can tell. I guess i will have to scope it to be sure but don't 
anticipate on finding a scan loss.

Jason
Moutons Electronics

----- Original Message ----- 
From: <becyn@xxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Saturday, December 17, 2005 10:58 AM
Subject: [TechAssist] Re: Sony KV-32xbr400 chassis DX1A No Pic, sound ok


>
> Probably bad solder on the V-out Ic.
>
> Jim McVey
>
>
> ----- Original Message -----
> From: "Moutons Electronics L.L.C." <moutons@xxxxxxxxxxxxxxxx>
> Date: Friday, December 16, 2005 9:26 pm
> Subject: [TechAssist] Sony KV-32xbr400 chassis DX1A No Pic, sound ok
>
>> This TV came in with the complaint it was out. I played it for a
>> week and it played just fine until today. It came on the light
>> flashed several times like it always does during the warm-up of the
>> picture tube then stayed on at which time it would usually pop on
>> the picture, ofcourse this time it didn't. I thought it was out for
>> a moment till I turned up the volume and it had sound. I look in
>> the back and it had filament. So I don't know if the customer
>> missed that or not so I am going with what I found. Every time I
>> turn it on now I get no pic.
>> I had a good picture, although not a new picture for this 5 yrs old
>> set, it was good. Could this Sony be blanking the video like when
>> the tube ages. I don't get the usual flashes of video like older
>> ones. This is a Hi-Resolution model, never worked on one of these,
>> no diagram. Is there a known way to defeat the IK circuit on these
>> to see if I can get a picture? Does anyone know of a good way to
>> troubleshoot this model for this problem?
>>
>> On older models you are able to turn up the screen to get the
>> picture to override the IK circuit for a while but on this set I
>> have varied the screen all the way up and down and all points in
>> between and have no luck on getting a picture.
>>
>>
>> Jason
>> Moutons Electronics
>>
>>
>>
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