Motorola MTP700 Detailed Service Manual page 192

4.2 - 70
DC Distribution (VREF1_2.775V) Test
Use this test on a unit with the following symptoms: no VREF1_2.775V.
MTP700 Portable Radio / Detailed Service Manual
Check C285 for 2.775Vdc
Is the voltage OK?
No
Check C252 for
3.3Vdc.
Is the voltage OK?
Yes
Change GCAP3 (U200).
Yes
Check traces to
U307.
No
Go to V2_2.775V Test.
TRANSCEIVER 800 MHz