[TechAssist] Re: 2nd request. PTK169PAAS..Shutsdown.
- From: "Avery Boyd" <adBoyd@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 8 Mar 2004 16:21:59 -0600
You should have around 143v b+ and 13v in standby. This is critical.
Avery Boyd
4666B S. Mingo
Tulsa OK 74146
Phone 918-665-2400
----- Original Message -----
From: "Intrepid Video Support" <support@xxxxxxxxxxxxxxxxxx>
To: "Techassist" <techassist@xxxxxxxxxxxxx>
Sent: Monday, March 08, 2004 12:18 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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