Motorola XTS 2500 Service Manual page 175

VHF Troubleshooting Charts: Button Test Troubleshooting Chart
6.1.10Button Test Troubleshooting Chart
Yes
End
6816985H01-F
Button Test
Place radio in Test Mode.
Press Top Side Button
(Monitor) so display reads
CH TEST. This places the
radio in button test mode.
Then, press the orange
(Emergency) Top Button
to verify codes displayed
as shown in the Button
Table at right
Keys
correct?
No
Check signal
path integrity of
button in question
Synopsis
This chart relates to a failure in the button functions.
Basic Failure modes are as follows:
1) Failure in keypad flex assembly.
2) Bad Connection
3) Defective Switches or pads
4) Defective MAKO IC (U701)
Button Table
Button
PTT
Top Button (Emergency)
Side Button 1 (Monitor)
Side Button 2
Side Button 3
Channel Select (Frequency)
Volume Control Knob
Zone Select
131/1 132/1
129/1
135/1
HOME 128/1
136/1
49/1 50/1
1 2ABC
52/1 53/1
4GHI
5JKL
55/1 56/1
7PRS 8TUV
58/1 48/1
0
*
6.1-9
Code Chart
1/ 0-1
3/ 0-1 C.6
96/ 0-1 C.6
97/ 0-1 C.6
98/ 0-1 C.6
4/ 0-15 C.8
0/ 0-220 C.7
65/ 0-2 C.8
133/1
134/1
130/1 App
Navigation
Button
51/1
3DEF
54/1
6MNO
57/1
9XYZ
59/1
#
MAEPF-27335-O
February 14, 2012