Sailor RT5020 - Page 54

Functional unit workshop service VHF 5000 System
3-38
1007
(MPC-01)
Power up
(MPC-02)
Source?
(MPC-03)
BB Power?
(Replace)
Replace BB
or MKD
Test Flow
Terminated
40445
(MPC-04)
BB Power
(MPC-05)
RF Power?
Passed
Passed
Passed
Passed
Passed
Failed
(Replace)
Replace
Failed
Failed
Failed
Failed
power
(Replace)
Replace
SMPS
(Replace)
Replace RF
(Replace)
Replace
SMPS
(MPC-06)
RF Power
connector
source
source?
(MPC-01)
Power up
(MPC-02)
Source?
(MPC-03)
BB Power?
(Replace)
Replace BB
or MKD
Test Flow
Terminated
40445
(MPC-04)
BB Power
(MPC-05)
RF Power?
Passed
Passed
Passed
Passed
Passed
Failed
(Replace)
Replace
Failed
Failed
Failed
Failed
power
(Replace)
Replace
SMPS
(Replace)
Replace RF
(Replace)
Replace
SMPS
(MPC-06)
RF Power
connector
source
source?
Fig. 23 (MPC) - Module Power supply check flow.
Reference Operation/Test Test Criteria Comments/instructions
MPC-01 Power up radio
Pass:
Input power to the
SMPS equals the voltage fed
into the radio.
Fail:
Otherwise
Pass:
All voltages verified.
Fail:
Otherwise
Pass:
All voltages verified.
Fail:
Otherwise
Pass:
All voltages verified.
Fail:
Otherwise
Pass:
All volta
g
es verified.
Fail:
Otherwise
MPC-06 RF power source Repeat MPC-05 with “RF POWER”
disconnected.
MPC-04 Baseband power source Repeat MPC-03 with “BASEBAND POWER
SUPPLY” disconnected.
MPC-05 RF power Check voltages sourced into the RF board
are correct according to the prescribed
voltages on the electrical interconnection
diagram.
MPC-02 Power source check See electrical interconnection diagram.
MPC-03 Baseband power Check voltages sourced into the baseband
board are correct according to the
prescribed voltages on the electrical
interconnection diagram.
Fig. 18 (MPC) - Module power supply checks.