Motorola MTP700 Detailed Service Manual page 104

4.1 - 70
DC Distribution (5.5V_RF) Test
Use this test on a unit with the following symptoms: no 5.5V_RF.
MTP700 Portable Radio / Detailed Service Manual
Check 5.5V_RF on C299 for
5.5Vdc.
Is the voltage OK?
No
Check 5.5V_RF on C220 for
5.5Vdc.
Is the voltage OK?
No
Check U205 pin2 for 7.2Vdc.
Is the voltage OK?
Yes
Check U205 associated
components.
Are they OK?
Yes
Replace U205.
Yes
Check traces to GCAP3 and
Battery Interface Circuitry.
Yes
Check E212.
No
Refer to the DC Distribution
(SWB+) Test flowchart.
No
Replace defective components.
TRANSCEIVER 400 MHz