This sounds like failed components in both the power supply, and the output
stage. These areas can be a challenge for an experienced tech to service.
You should take the unit to a service centre to have a proper estimate done
for you.

--

JANA
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"Zakes" wrote in message
ps.com...
Hi there! I have a Technics Tuner Amp Model: SA-EHS70 which has gone
dead. There's red LED indicating that the power from the wall socket is
present. I tested the power supply environment but found no fault.
Before the equipment stopped functioning, it had a problem with sound,
a distorted sound. Now when I switch it on, I can only hear the click
of sound from the speakers only once and that's all. Every time I
swicth the power button I will hear that sound and the LED will remain
on with no display on the panels.

Zakes