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Poneer SX-727 Speakers cutting out.

gastonlv

Jul 6, 2022
1
Joined
Jul 6, 2022
Messages
1
Hi! I have a Pioneer SX-727 (1972-1974) thrift store find. Played great at first. Until I turned up the volume to hear it loud. I think I blew something. It played for about a minute then, no sound. It pops in then goes back out.

It plays great at a very low volume. When I turn it up it cuts out and will intermittently play sound, then cut out immediately.

I changed speaker wires, tried both A and B channels, does this on all selections (Phono, Aux, FM).

Thank you
 

Martaine2005

May 12, 2015
4,351
Joined
May 12, 2015
Messages
4,351
This sounds like a typical power supply issue.
Check the electrolytic capacitors for bulging tops or signs of leakage. Possibly just dried out too.
Also check for dry/cracked solder joints.


Martin
 
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