Radio Power-Up Fail Troubleshooting Chart (3 Of 3) - Motorola XTS 2500 Service Manual

900 MHz Troubleshooting Charts: Radio Power-Up Fail Troubleshooting Chart (3 of 3)

6.5.6 Radio Power-Up Fail Troubleshooting Chart (3 of 3)

2
Components
OK?
Check for
32.768kHz
signal on
R747
No
Signal
Present?
Y es
Follow DC
Supply Failure
Flowchart
6816985H01-F
Replace
Problem
Component
Signal
Replace U712
Present?
and Retest
No
Problem
Solved?
Check For
Signal
32.768kHz
Present?
signal on
R745
Y es
No
End
No
Replace
U713
Y es
Problem
Solved?
No
Follow DC
Supply Failure
Flowchart
6.5-5
Y es
End
MAEPF-27333-O
February 14, 2012