Tait Orca 5000 - Cannot Change Channel

C - 10 Fault finding charts June 2003 IPN: M5000-00-105
Figure C-2: Cannot change channel
YES
Return to nearest
Tait Dealer
Replace channel
selector switch.
Using the truth table
below, is channel selector
operation OK?
Cannot change channel
NO
6341
20001
30010
50100
91000
PINS
CHANNELS
1 = S/C to GND
0 = O/C to GND
Bottom of PCB
Antenna
connector 16-way
selector On/off/
volume control
123
654