Motorola APX 3000

Troubleshooting Charts: DC Supply Failure 5-19
5.4.5 DC Supply 1.8 Volt Failure
Yes
Verify DC_LIN_1_8V at C210
Voltage
= 1.8V?
Yes
No
Check voltage at C209
Voltage
2.775V?
Replace U202
No
Check for open in branch
to troubleshooting
section
Check voltage at R6564
Yes
Replace MAKO
Voltage
2.775V?
No
Check continuity between
R6564 and C209
DC_LIN_1_8V