7-28
Troubleshooting Tables:
List of Board and IC Signals
omap_mpu_boot
Pin pulled high on PCB
to select external boot
on EMIFS CS3 (flash
memory)
J20
Input
None
1
Input
None
reset_mode
Determines reset mode
of OMAP. Latched on
rising edge of
PWR_ON_RESET.
Pulled low on PCB
(mode 0).
P12
Input
None
0
Input
None
mako_resetx
"Master cold reset input
for entire 1710 chip,
controlled by Mako IC
"R12
0
Input
None
Input
None
mako_resetx
"MPU (ARM9) subsys-
tem reset input, tied to
PWRON_RESET (R12)
on PCB
"U20
0
Input
None
Input
None
omap_reset
"Reset output from
OMAP used for
CODEC, CPLD, Front
Display, Lighting Con-
trollers, MACE Tamper
ckt.
"AA20
0
Output
None
0
Output
None
RSW_Int
Rotary Interrupt to
OMAP
Y10
Input
Pull-
down
Input
Pull-
down
RSW_A
Rotary knob input to
OMAP
V11
Input
Pull-
down
Input
Pull-
down
RSW_B
Rotary knob input to
OMAP
R11
Input
Pull-
down
Input
Pull-
down
NC
NC
R18
Input
Pull-
down
Input
Pull-
down
NC
NC
Y8
I/O
Pul-
lup
Input
Pull-
down
NC
NC
W8
I/O
Pul-
lup
Input
Pull-
down
NC
NC
V8
I/O
Pul-
lup
Input
Pull-
down
NC
NC
W15
I/O
Pul-
lup
Input
Pull-
down
Table 7-10. 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 APX 2000
Page 1: ...APXTM TWO WAY RADIOS APX 1000 APX 2000 APX 4000 APX 4000Li DETAILED SERVICE MANUAL ...
Page 4: ......
Page 6: ...iv Document History Notes ...
Page 8: ...Notes vi Commercial Warranty ...
Page 10: ...Notes ...
Page 22: ...xiv List of Figures Notes ...
Page 226: ...6 64 Troubleshooting Waveforms LF CW on Spectrum Analyzer Notes ...
Page 688: ...Index 4 Index Notes ...
Page 690: ...ii Notes ...
Page 700: ...xvi List of Figures Notes ...
Page 806: ...5 50 Troubleshooting Charts PA Failure Notes ...
Page 1008: ...8 178 Schematics Boards Overlays and Parts Lists Transceiver RF Boards UHF2 84012621001 Notes ...
Page 1062: ...8 234 Schematics Boards Overlays and Parts Lists Keypad Board M2 and M3 PC000261A01 Notes ...
Page 1064: ...ii Notes ...
Page 1068: ...Notes A 4 EMEA Warranty Service and Technical Support Further Assistance From Motorola ...
Page 1090: ...Glossary 10 Glossary Notes ...
Page 1094: ...Index 4 Index Notes ...
Page 1095: ......