[TechAssist] Re: RCA F26051, CTC167, small, dark, blurry picture.

  • From: Jon Garver <jongar@xxxxxxxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Tue, 29 Mar 2005 09:38:37 -0500

What happens with the horizontal drive? Does it stay good during this
time?

Jon Garver
Heritage Television Service
204 Heritage Rd.
Monticello, IN. 47960-1510
Voice & FAX: 574-583-9681
Alternate Email: HeritageTV@xxxxxxxxxxx

Kevin wrote:
> This is the last kick at the can.  Picture is fine when first turned on,
> but slowly the picture comes in from the top and bottom and sides, and
> gets dark and blurry.  B+ starts off at 129 volts (correct from SM) and
> slowly drops to 116 volts after about 2 hours (sometimes more, sometimes
> less).  I replaced SCR4101, HOT Q4401, and 4 transistors (Q4101/2/3/4)
> in the error detection circuit.  I also checked all the caps in the P/S
> and horizontal and used half a can of cold spray.  Is there anything
> else I can check for?  I am suspecting the flyback or picture tube but I
> don't have a working CTC167 chassis to confirm my diagnosis.  Does
> anyone have a working CTC167 chassis?  Thanks.    
> 
> Kevin Wilks
> Kevin's TV & Video Repair
> Penticton BC Canada
> kevintv@xxxxxxx 
>  
> 
> 
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