2-8 Subject to Export Control, see Cover Page for details.
TROUBLESHOOTING TABLE (cont)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
5 FAULT Indicator is Yellow
Step 1. Clear Warning condition in the Test Set.
Step 2. Press the POWER Key twice to cycle power.
Step 3. Troubleshoot the circuit between the Power Supply PCB Assy and the RF
Assy.
Probable source of failure is the Power Supply PCB Assy.
Probable source of failure is the RF Digitizer PCB Assy.
Probable source of failure is the Multi-Function PCB Assy.
Probable source of failure is the RF Assy.
6 Blows Fuse
Step 1. Connect the External DC Power Supply to a verifiable AC Power Source
and verify the LED is lit.
If incorrect, replace the External DC Power Supply.
Step 2. Using a DMM on the External DC Power Supply output, verify +18 Vdc
(± 1 Vdc).
If incorrect, replace the External DC Power Supply.
Step 3. Replace the Fuse (para 2-4B).
Step 4. If the fuse continues to blow, replace the Power Supply PCB Assy
(para 2-4D).
7 Battery does not charge
Step 1. Connect the External DC Power Supply to the Test Set and verify the
CHARGE Indicator is Green or Yellow.
If incorrect, replace the Battery (para 2-4A).
Step 2. Allow four hours for Battery to fully charge and verify the CHARGE
Indicator is Green.
If incorrect, replace the Battery (para 2-4A).
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