Motorola APX 7000 Detailed Service Manual page 122

5-18 Troubleshooting Charts: DC Supply Failure
5.4.4 DC Supply 1.5 Volt Failure
Remove shield SH14
Check voltage Pin A3 of
U203 Via C212
No
Check Voltage Pin A1 of
Voltage 1.5V
U203 Via C210
Yes
Check for open in the
branch, to the section you Yes Yes
Check Pin C3 and pin C1
are troubleshooting. Voltage 1.8V Voltage 2.775V Replace U202
of U203 Via C209
No
No
Refer to the RF Board DC
Refer to Vocon
Supply 1.8 Volt Failure
troubleshooting guide for
troubleshooting guide
the 2.775 LD06 supply.