Motorola ASTRO XTS 2500 - DC Supply Fail Troubleshooting Chart (2 of 3)

6816985H01-B August 16, 2007
VHF Troubleshooting Charts: DC Supply Fail Troubleshooting Chart (2 of 3) 6.1-7
6.1.8 DC Supply Fail Troubleshooting Chart (2 of 3)
MAEPF-27333-O
Check R763,
L703, C717,
and CR700
Replace
Problem
Component
Components
OK?
Fixed?
End
Components
OK?
Replace
Problem
Component
No
Y
es
Y
es
Y
es
Y
es
Y
es
Y
es
No
No
N
o
No
4
5
4
No
Check
Voltage at
pin R711
Voltage =
3.6V +/-
5%
Check
C796, C713,
L701
Check
Voltage at
pin L703
Voltage =
1.875V +/-
5%
Voltage =
2.9V +/-
5%
Check
Voltage at
pin L704
ReFLASH
HOST C
Code
Replace
U701
MAKO IC