[TechAssist] Re: 2nd request. PTK169PAAS..Shutsdown.
- From: "al m" <ampm@xxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 8 Mar 2004 16:12:34 -0500
I mentioned that a while back.
Al Marquardt
ampm@xxxxxxx
Al Marquardt Electronic Repair
206 W Main
Girardville Pa. 17935
----- Original Message -----
From: "Al Brown" <abrown@xxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, March 08, 2004 1:48 PM
Subject: [TechAssist] Re: 2nd request. PTK169PAAS..Shutsdown.
> Jeff,
> I had one of those chassis's not too long ago doing exactlty the same
thing and after replacing all of the
> things you mentioned, I found the red crt was bad.. pulled the crt board
off and it started up ok..
> Al Brown
> Largents inc.
> 718 main st.
> Lewiston , Id. 83501
> 208-743-8579
> 208-746-3426 fax
>
> Intrepid Video Support wrote:
>
> > 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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