Technical Manual
Table Of Contents
- Vocoder and Controller Boards Detailed Theory of Operation
- Introduction to This Section
- General
- Vocoder Board
- Controller Board
- Switching Regulator
- RX Signal Path
- TX Signal Path
- Controller Bootstrap and Asynchronous Buses
- Vocoder Bootstrap
- SPI Bus Interface
- Universal Connector and Option Selects
- Keypad and Display Module
- Controls and Control Top Flex
- Controller Memory Map
- Vocoder Memory Map
- MCU System Clock
- DSP System Clock
- Radio Power-Up/ Power-Down Sequence
- Notes
- Secure Modules
- Disassembly/Reassembly Procedures
- Troubleshooting Procedures
- Troubleshooting Charts
- Troubleshooting Waveforms
- Troubleshooting Diagrams
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
µC.
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.