Troubleshooting Tables:
List of Board and IC Signals
7-7
gcai_vbus_i_limit
Current limit select for
GCAI VBUS
C6
1=500mA
Output
0
Output
f2_paramp_mon
Factory use to test F2
transmit timing. Allows
TX/RX signal to
appear on GCAI
GPIO3.
C5
1=Factory
Test
Output
Pullup
0
Output
Pullup
top_disp_data_ctr
l
Select for data or con-
trol on top display(Not
Used in WWP)
P12
1=data
Output
0
Output
top_display_reset
Reset for color front
display( Not Used in
WWP)
M12
0
Output
1
Output
Unused and Unwired
OMAP Pin
N13
Output
0
Output
Unused and Unwired
OMAP Pin
M14
Output
0
Output
Unused and Unwired
OMAP Pin
N14
Output
0
Output
gps_shutdown
Shutdown to GPS
D12
0
Output
0
Output
rf_reset
Reset to RF board
A8
0
Output
0
Output
Unused and Unwired
OMAP Pin
B7
Output
0
Output
Unused and Unwired
OMAP Pin
B8
Output
1
Output
C7
0
Output
None
1
Output
None
Unused and Unwired
OMAP Pin
J2
Input
None
Input
None
Unused and Unwired
OMAP Pin
M8
Input
None
Input
None
bt_usb_boot
Bluetooth 'boot' signal
P8
0
Output
None
Input
None
bt_avr_reset
Bluetooth AVR32
Reset signal
M13
0
Output
None
Input
key_fail_switch
Enables keyload path
for MACE secure.
A12
1
Output
0
Output
NC
Not Used
M6
TBD
Input
Pullup
Input
None
NC
Not Used
N11
Input
None
Input
3
NC
Not Used
K14
Input
None
Input
None
Table 7-7. Overall GPIO pin functions (Continued)
Signal Name
Description
Pin or
Ball #
Active State
SW Initialized
HW Reset
Direction
*
PU
State
Direction
*
PU
or
PD
Summary of Contents for Astro APX 3000
Page 1: ...APXTM TWO WAY RADIOS APX 3000 DETAILED SERVICE MANUAL ...
Page 2: ......
Page 4: ...Notes ...
Page 6: ...vi Document History Notes ...
Page 10: ...x Table of Contents Notes ...
Page 12: ...xii List of Tables Notes ...
Page 18: ...xviii List of Figures Notes ...
Page 22: ...xxii CommercialWarranty Notes ...
Page 46: ...3 20 Theory of Operation Main Board Notes ...
Page 84: ...3 58 Theory of Operation Bluetooth Notes ...
Page 208: ...6 64 Troubleshooting Waveforms LF CW on Spectrum Analyzer Notes ...
Page 222: ...7 14 Troubleshooting Tables List of Board and IC Signals Notes ...
Page 282: ...8 60 Schematics Boards Overlays and Parts Lists Main Board Block UHF1 84012513001_A Notes ...
Page 390: ...8 168 Schematics Boards Overlays and Parts Lists Main Board Block VHF 84012512001_A Notes ...
Page 456: ...9 8 Debugging Fixture Powering up Covert Board Notes ...
Page 468: ...Glossary 10 Glossary Notes ...
Page 472: ...Index 4 Index Notes ...
Page 473: ......