Motorola APX 3000 Detailed Service Manual page 107

Troubleshooting Charts: DC Supply Failure
5.4.3 DC Supply 3 Volt Failure
DC_LIN_3V
Verify DC_LIN_3V at C208
Voltage = 3V?
Yes
Check for open in branch
to troubleshooting
section
No
Check voltage at C207
Voltage
3.6V?
Refer troubleshooting
guide 5.4.2 DC supply
3.6V
Yes
No
5-17
Replace U201