TROUBLESHOOTING GUIDE
E-23
YES
YES
YES
NO
YES
NO
NO
YES
NO
E-E AUDIO(MONO)
DOES NOT APPEAR
Is the voltage at pin 40
of IC701 5V?
Is the voltage at pin 34
of IC701 12V?
Check POWER BLOCK.
Check POWER BLOCK.
Check J8002, J8005 and
peripheral circuit.
Change IC701.
Does audio signal appear
at pin 21 of IC701?
Does audio signal
appear at pin 36, 37, 42
and 43 of IC8001?
Check circuit around of J8005
and IC8001.
Does audio signal appear
at pin 22 of IC701?
Does audio signal appear
at pin 15 and 18 of
IC701?
NO
NO
YES
Check IC101.
Change IC701.
Содержание SD-22VB
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