Motorola ASTRO XTS 1500 - Page 172

August 16, 2007 6816985H01-B
6.1-8 VHF Troubleshooting Charts: DC Supply Fail Troubleshooting Chart (3 of 3)
6.1.9 DC Supply Fail Troubleshooting Chart (3 of 3)
No
No
No No
No
N
o
Y
es
Y
es
Y
es
Y
es
Y
es
Y
es
5
Check L502,
C518, C506,
and C512
Components
OK?
Replace
Problem
Component
Replace
U502
Check C513,
C524, C510
and C512
Replace
U501
End
Replace
U500
Replace
Problem
Component
Components
OK?
Replace
Problem
Component
Components
OK?
Check
Voltage at
C517
Voltage =
3.0V +/- 5%?
Check
Voltage at
C517
Check
Voltage at
C514
Voltage =
5.0V +/- 5%?
Voltage =
3.0V +/- 5%?
Check L502,
C518, R527,
C511 and C522