OTS Aquacom MK2-DCI, Руководство пользователя, Страница: 15 / 16

PROBLEM PROBABLE CAUSE REMEDY
Defective pre-amp Replace
chip
Open trace on board Repair trace or
replace board
PTT logic circuits Repair or replace
defective board
Weak battery Charge (if
rechargeable) or replace
Microphone pre-amp Trace signal to find
circuit defective fault and replace
defective part
No record-out function Board connector not Clean pins or replace
making contact defective connector
Defective record amp Trace fault around
record op-amp and
replace faulty part
Replace board
Weak output to divers Power amplifier Replace power
and tender defective amplifier chip
Defective component Trace part and replace
that supports the power
amplifier is defective
Distorted unintelligible Bias supply faulty Check supply and
speech replace defective part
Cannot cross-talk Defective cross-talk Replace cross-talk
divers switch switch
Defective relays Replace relays
CPU defective Replace CPU
Tender-to-diver faulty Defective PTT switch Replace PTT switch
in two-wire mode
Defective relays Replace relays
Defective CPU Replace CPU
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