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

  • From: Wayne Vanaman <Wayne@xxxxxxxxxxxxxxxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Sat, 17 Dec 2005 08:32:19 -0600

The video processors, TDA61xx series, are High failure components. 
check the voltages on thos ICs.  If any IC is bad replace all of them if 
there are multiples.  I believe the XBRs use three ICs while some others 
use only one IC.

Wayne Vanaman
Omega Electronics
6904 W Fairfield Dr
Pensacola, Fl.  32506-3310

Wayne@xxxxxxxxxxxxxxxxxxxxx
WWW.PensacolaTVRepair.Com

850-456-5995 voice
850-458-6369 fax


Damon wrote:
> I wouldn't think it's IK related, since you had NO PICTURE, not even a slick
> raster or retrace when you turned it up, and had heater voltage! Unless you
> just didn't Clarify that......
> 
> Damon B
> Telrad Electronics
> Fort Wayne IN
> ----- Original Message -----
> From: "Moutons Electronics L.L.C." <moutons@xxxxxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: 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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