Tait Orca series, Service Manual

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C - 10 Diagnostics and fault finding
11/98 IPN: 449-51000-01
Figure C-2: Fault finding – Cannot change channel (Orca Elan and Orca Excel)
YES
Return to Mobile Radio
Customer Service Department
Replace channel
selector switch.
Using the truth table
below, is channel selector
operation OK?
Cannot change channel
NO
6 3 4 1
2 0 0 0 1
3 0 0 1 0
5 0 1 0 0
9 1 0 0 0
PINS
O = O/C to GND
1 = S/C to GND
Botom of PCB
Antenna
connector 16-way
selector
On/off/
volume control
1 2 3
6 5 4