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HA-37/57
ASOO
OO OO
60 06 00.00
OUTPUT
:
.
Wechselstrom
Oszillograph
Audio oscillator
;
Voltmeter
Oscilloscope
Frequenzgenerator
Voltmétre a
Muting circuit
turned ON.
output transistors
is applied.
Speaker protection circuit
(DC voltage detec-
tion/protection circuit)
1.
No sound comes
out.
than +2 V.
3. After the power switch is
ON.
No sound comes out about 7 — 10
sec. after the power switch Is
2. When the power switch is
turned ON, the relay becomes
ON, then OFF when the signal
Remedy
a
Normal!
Power amplifier faulty,
etc.
Repair faulty parts in power amplifier.
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