[TechAssist] fix RCA/ Proscan PS27152 , CTC169CE5 tried to power up, audible thump-thump. Sound module shorting?
- From: Phil Bader <tjanphyl@xxxxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Wed, 12 Jan 2005 15:26:35 -0500
I decided to pull the two audio power L,R outputs on the audio module.
Both ICs are TDA2052.
After replacements the set powers up and runs with good picture and
sound. No thumps! (just the voices in my head telling me to...)
Phil Bader
Phil Bader wrote:
>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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