[TechAssist] Re: Pioneer PTV SD-P55A3 Dead
- From: "al m" <ampm@xxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 27 Jan 2003 09:40:22 -0500
Just for my records, what is PD shutdown.?
al marquardt
ampm@xxxxxxx
----- Original Message -----
From: "Electric Medic" <info@xxxxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Cc: "Electric Medic" <info@xxxxxxxxxxxxxxxxx>
Sent: Sunday, January 26, 2003 11:45 PM
Subject: [TechAssist] Re: Pioneer PTV SD-P55A3 Dead
>
> Al:
>
> The set could be in "PD Shutdown" and power supply or vertical circuit
> appears to be defective but if actually, only 4A (-25V) fuse is blown.
After
> fuse is replaced, the set will work, maybe even a couple of weeks or
month's
> but the fuse filament can be seen to bend momentarily at power on and it
> will fail if you just replace fuse. I have seen them look like they are
> going to a line momentary when these sets shutdown. I have even seen them
> burn vertical or horizontal lines in the phosphorous.
> Cure: Problem is on Amp Assy. Which is a little difficult to get to, it is
a
> side mounted board on the left chassis, signal board- Resolder transistors
> and regulators that are mounted to the heat sink and replace both
> convergence output ICs
> (STK392-110).
>
> Perry Bower
> Electric Medic
> "It's Cheaper to Keep Her"
> http://www.electricmedic.com
> Free Electronic Screensaver:
>
http://www.eyetide.com/download/?s=O3OfmSLHXygGHCv1W6Gz3Bgjtq3DNNMNdcKsYSVGC
> 3850 Washington Road Suite 5b
> Martinez, Georgia 30907
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> Phone: 706-863-3474
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> mailto:info@xxxxxxxxxxxxxxxxx
>
>
> -----Original Message-----
> From: techassist-bounce@xxxxxxxxxxxxx
> [mailto:techassist-bounce@xxxxxxxxxxxxx]On Behalf Of Al Gutz
> Sent: Sunday, January 26, 2003 9:36 PM
> To: tech assist
> Subject: [TechAssist] Pioneer PTV SD-P55A3 Dead
>
>
>
> Have to do a service call on this set and since pioneer is a rare breed
> around here looking for a bit of info.
>
> Customer said set went dead and he found a open fuse, replaced and the
> set ran for about a week and dead again, same fuse open. When he
> replaced it agian the set ran for only a few minutes, said the vert
> collapsed into a line and then set dies.
>
> Thinking possible vert IC, could someone tell me what this set uses for
> vert, so I can take one with me.
>
> Thanks in advance for any info
>
> Al G
> Al's TV-Electronics
> Pembroke Ont.
> Canada.
>
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