Motorola ASTRO XTS 5000 - Page 99

November 16, 2006 6881094C31-E
5-8 Troubleshooting Charts: DC Supply Failure
DC Supply Failure—Page 2
MAEPF-27392-B
Check R763,
L703, C717,
and CR700
Check Voltage
at R560
Replace
Problem
Component
Voltage
= V2?*
Replace
U501
(GCAP II)
Check R502,
C506, L502,
and D503
Voltage
= 3.77V+/-5%?
Voltage
= 1.85V+/-5%?
Components
OK?
ReFLASH
HOST C
Code
Fixed?
End
Components
OK?
Check Voltage
at R501
Replace
Problem
Component
Check Voltage
at B502
(VOCON)
No
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
No
No
No
No
1
2
3
2
No
* per Standard Bias Table