[TechAssist] Re: 2nd request. PTK169PAAS..Shutsdown.
- From: "al m" <ampm@xxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 8 Mar 2004 16:11:27 -0500
B+ is too high in standby and regulated. maybe you got a bad part.
Al Marquardt
ampm@xxxxxxx
Al Marquardt Electronic Repair
206 W Main
Girardville Pa. 17935
----- Original Message -----
From: "Intrepid Video Support" <support@xxxxxxxxxxxxxxxxxx>
To: "Techassist" <techassist@xxxxxxxxxxxxx>
Sent: Monday, March 08, 2004 1:18 PM
Subject: [TechAssist] 2nd request. PTK169PAAS..Shutsdown.
> 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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