Motorola MTP700 - Page 105

TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 71
DC Distribution (5V_RF) Test
Use this test on a unit with the following symptoms: no 5V_RF.
Is the voltage OK?
Change GCAP3 (U200).
Check 5V_RF on C292, C293
for 5Vdc.
Check 5V_RF on C223
for 5Vdc.
Yes
No
No
Yes
Is the voltage OK?
Is the voltage OK?
Go to 5.5V_RF test.
No
Yes
Check E206.
Check traces to the RF sections:
RFCU, RXU, TXPA, TXFE,
ESCORT.
Check 5.5V_RF at C299.