[TechAssist] Re: Toshiba TP55G65,TAC 9754, HV comes on for split second, need SM.

  • From: Jim Myers <jr.myers@xxxxxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Tue, 12 Apr 2005 16:28:06 -0500

It is probably not the yoke, you need to check for dc offset on the 
output pins of the convergence IC's. There is a three or 4 pin connector 
near the convergence yoke connectors and one pin is marked protect, 
disconnect that pin and the set should stay on so you can t-shoot it. 
Look for discolored resistors for a clue.


********************************
Since 1972                     *
Jim Myers                      *
Telrad Electronics             *
Fort Wayne Indiana             *
********************************


Kevin wrote:
> I pulled the convergence yoke plugs one at a time and the set comes on
> and stays on with the green convergence yoke plug removed.  Does this
> prove 100% that the green convergence yoke is bad, or do I need to do
> more testing to confirm this diagnosis?  All the convergence yokes rang
> the same on my Sencore LC75, so I am suspicious that the green
> convergence yoke is at fault.  Thanks.  
> 
> Kevin Wilks
> Kevin's TV & Video Repair
> Penticton BC Canada
> kevintv@xxxxxxx 
>  
> 
> -----Original Message-----
> From: techassist-bounce@xxxxxxxxxxxxx
> [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Kevin
> Sent: Sunday, April 10, 2005 1:55 PM
> To: TECH-ASSIST
> Subject: [TechAssist] Toshiba TP55G65,TAC 9754, HV comes on for split
> second, need SM.
> 
> This set comes on for a split second and then goes into shutdown with
> the power light slowly flashing off and on.  I looked in the member's
> area but could not find this model listed.  Does anyone know what
> chassis family this set belongs to?  I am guessing it is in the list for
> Toshiba, but not by model number.  Thanks.  
> 
> Kevin Wilks
> Kevin's TV & Video Repair
> Penticton BC Canada
> kevintv@xxxxxxx 
>  
> 
> 
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