
11
TROUBLESHOOTING FOR MK2-DCI
PROBLEM
PROBABLE CAUSE
REMEDY
No Power
Battery exhausted
Replace battery
Battery leads loose
Check battery
connectors
Defective ON/OFF
Change switch
switch
Board connector not
Clean pins
making contact
Open circuit on board
Repair or replace board
Power only for a short
Defective boot circuit
Repair or replace
time when power switch
board
is turned on
Defective CPU chip
Replace CPU or
replace board
No diver voice
Loose connection at
Check connector;
ribbon lead connector
clean or reconnect
Board connectors
Clean pins and
loose
reconnect
Defective PCB
Replace board
Defective speaker
Replace switch
ON/OFF switch
Defective volume
Replace control
controls
Defective panel
Replace speaker
speaker
Defective pre-amp
Replace
chip
Defective relay
Replace
PTT logic circuits
Repair or replace
defective
board
No tender voice
Defective board
Replace
Defective relay
Replace