[TechAssist] 2nd request. PTK169PAAS..Shutsdown.

  • From: "Intrepid Video Support" <support@xxxxxxxxxxxxxxxxxx>
  • To: "Techassist" <techassist@xxxxxxxxxxxxx>
  • Date: Mon, 8 Mar 2004 13:18:36 -0500

Still working on this, can not figure out why it is shutting down as HV builds.
Would a defective vertical section cause this set to shut down?
REG B+ is 170 in standby, drops to 162 when I press power..is this normal on 
this set?
Schematic shows Reg B+ <72-A>, Not sure what that means.
I've repaired many of these with a splitter, flyback or replacing the parts in 
the power supply.
I've done all this and set still shuts. I've replaced all the caps, the boxed 
caps in front of the HOT,
CR4118(tested OK), U4101, Q4101, Q4401..and all the caps. Checked all the 
diodes and resistors and can
find no problems.
I'm running out of time on this one....Does anyone have any idea what I may 
have missed?
Thank you.

Jeff Dougherty
Intrepid Video TV/VCR
263 S Front St
Steelton PA 17113
fax...717-564-4952
www.intrepid-video.com www.tech-repair.net


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