10-20
Chart 18. Button Test
Refer to
appropriate
troubleshooting
chart.
Button Table
Button Code
Chart
C.22
C.22
C.22
C.22
C.22
C.22
C.21
C.20
PTT 1/ 0-1
Top Button (Emergency) 3/ 0-1
Top Side Button (Monitor) 96/ 0-1
Side Button 1 (RAT 1) 97/ 0-1
Side Button 2 (RAT 2) 98/ 0-1
Secure/Clear Switch 65/ 0-1
Zone/Channel Select (Frequency) 4/ 0-15
Volume Control Knob 2/ 0-255
Toggle Switch 67/ A=0, B=1, C=2
Synopsis
This chart relates to a failure
in the button functions. Basic
Failure modes are as follows:
1) Failure in control top/ptt or
keypad flex assembly.
2) Bad connection.
3) Defective switches or pads.
4) Defective A/D port in host
C.
Button
Test
Keys
correct?
No
Yes
End
1 2ABC 3DEF
4GHI 5JKL
6MNO
7PRS 8TUV 9XYZ
*
0
#
HOME
131/1 132/1 133/1
128/1 129/1 130/1
49/1 50/1 51/1
52/1 53/1 54/1
55/1 56/1 57/1
58/1 48/1 59/1
Keypad Table
See Chart C.19
MAEPF-26032-O
Place radio in Test Mode.
Press Top Side Button
(Monitor) so display reads
CH TEST. This places
radio in button test mode.
Then press orange top
button to verify key codes
displayed per Button Table.
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