[TechAssist] Re: RCA/ Proscan PS27152 , CTC169CE5 tried to power up, audible thump-thump. Sound module shorting?
- From: "Mouton's Electronics" <moutons@xxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Wed, 12 Jan 2005 14:36:45 -0600
Yeah Phil, there is a plug with about five wires near the outputs the other
end goes to the power supply area. It gieves the +&- 17vdc sources to the
amps. If you unplug it and the set runs it is definately on the audio board.
If you have the one with 2, 7pin amps with the legs in a zig zag pattern,
they are famous for causing intermittant shutdown after the set plays for a
while and shutdown after startup with a thud in the speakers.
Lots of trouble.
Jason
Mouton Electronics
New Iberia, LA
----- Original Message -----
From: "Phil Bader" <tjanphyl@xxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, January 12, 2005 1:34 PM
Subject: [TechAssist] RCA/ Proscan PS27152 , CTC169CE5 tried to power up,
audible thump-thump. Sound module shorting?
>
> I push power and there's a loud "thump" from the speaker(s) . I know
> that upright mounted sound board can have one or both audio output ICs
> shorting and stop the set from running. (I did measure CR4118 and had
> about +14VDC, so OK).
> Question: is there a simple way to temporarly "isolate" the sound board
> for testing the set other than completely removing it or the two
> outputs? A certain plug assy removal?
> Phil Bader
>
> --
>
> Philip Bader
> Jan Phyl TV Inc. (estab. 1976)
> 3420 Recker Hwy. Winter Haven, Fl. 33880
> Fax (863) 299-8821
> email: tjanphyl@xxxxxxxxxxxxxxx
>
>
>
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