PRC-PS-MS
5-1
CHAPTER 5
MAINTENANCE
This chapter provides a test procedure for verifying the PRC-PS functionality
and a troubleshooting procedure for isolating a fault.
5.1
Functional Test
Use the following test procedure to verify that the PRC-PS is working properly.
If the PRC-PS fails one of the checks,
refer to the Troubleshooting Index table
5.1.1
Required
Materials
Use the following materials to perform the PRC-PS functional tests:
•
DC Power supply (6 Vdc to 20 Vdc output at 9A minimum)
•
Electrolytic capacitor (30,000 µF to 150,000 µF 25 Vdc)
•
Resistor (6.8 ohms 10W)
•
Resistor (1.5 ohms 50W)
•
Resistor (2.2 ohms 50W)
•
Resistor (82 ohms 50W)
•
DC VOM (high impedance input)
•
DC Ammeter (3A scale minimum)
•
Clip jumpers
•
Heat gun or blow torch
•
1 kHz audio source (0.5 Vpp output minimum)
5.1.2
Test
Procedure
The following checks use the electrolytic capacitor to simulate a BB-LA6
battery.
Charging
Circuit Check
1. Set up the PRC-PS using an AC input power source.
2. Use the DC power supply to charge the electrolytic capacitor between
6 Vdc and 13 Vdc.
3. Remove the battery from the back of the PRC-PS. Use the clip jumpers to
attach the rear panel power connector J4 to the capacitor as if it were a
BB-LA6.
Refer to the Charger Output Check Setup figure on page 5-2
.
