Button Test
End
Check signal path integrity
of button in question
Place radio in Test Mode. 
Press side Top Button so 
disply 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.
Synopsis
This Chart relates to failure in the button functions Basic Failure modes are as follows:
1) Failure in control top, side controls or keypad flex assembly
2) Bad Connection
3) Defective Swithces or pads
Button Table
Button      
PTT      
Tob Button (Emergency)   
Side Button 1     
Side Button 2     
Side Button 3     
Rotary Switch     
Rotary Switch Push Button   
Keys Correct?
Yes
No
H
12
P
D
<
>
U
Navigation
Button
135/1
136/1
132/1 133/1131/1
134/1129/1
51/150/149/1
52/1 53/1 54/1
55/1 56/1 57/1
58/1 48/1 59/1
Note:
Numbers codes with a /1 are for a button 
pressed condition only. Number codes 
with a /0 are for a button release 
condition only.
Code
1/0-1
148/0-1
96/0-1
97/0-1
98/0-1
11/1-255
91/0-1
3
456
789
*
0#