Hi,
I have this Technics for repair it power's up
alright.
All buttons work but no sound comes out from the
tones/patches or rhythm section.
The LCD display also works alright.
I saw internal battery inside that checked
ok.
A bassy reverberating wave sound is continuously
heard coming from the speakers and it wouldn't go away.
Any suggestions please/ ideas of what to
check.
All supplies seem to be ok although I do not have a
schematic/sercive manual.
Thanks very much in advance.
Regards,
eons