Motorola APX 6000 - Page 126

5-20 Troubleshooting Charts: DC Supply Failure
5.4.6 DC Supply 1.5 Volt Failure
Remove shield SH2B
Check voltage Pin A3 of
U203 Via C212
Voltage 1.5V
Yes
No
Check Voltage Pin A1 of
U203 Via C210
Voltage 1.8V
Check Pin C3 and Pin C1
of U203 Via C209
No
Check for open in the
branch, to the section you
are troubleshooting.
Refer to the RF Board DC
Supply 1.8 Volt Failure
troubleshooting guide
Yes
Refer to the RF Board.
DC Supply 3 Volt failure.
Voltage 3V
No
Yes
Replace U203