TM 11-6625-3081-23
7-2. TROUBLESHOOTING METHODOLOGY (cont)
7 - 2
ELECTRONICS TROUBLESHOOTING FLOW CHART DESCRIPTION (cont)
Symbol
6
7
8
9
10
Action
RUN VSGST - rerun test
If VSGST test passes, then Pulse Generator CCA 2A2A7A6A9 was bad. No
further action required.
If VSGST test fails and its a different fault segment, then Pulse Generator
CCA 2A2A7A6A9 was faulty but another fault exists. Operator must then find
correct fault segment and continue troubleshooting.
If VSGST test fails and its the same fault segment, then Pulse Generator
CCA 2A2A7A6A9 was not faulty and troubleshooting in this leg continues.
PERFORM THIRD MAINTENANCE ACTION - Refer to REPLACEMENT PROCEDURE REFERENCE
paragraph and determine procedural paragraph number to replace 2A2A6XX/
HP69331B.
Replace Digital Output CCA (Slot 406) 2A2A6XX.
RUN VSGST - rerun test.
If VSGST test passes, then Digital Output CCA 2A2A6XX was bad. No further
action required.
If VSGST test fails and its a different fault segment, then Digital output
CCA 2A2A6XX was faulty but another fault exists. Operator must then find
correct fault segment and continue troubleshooting.
If VSGST test fails and its the same fault segment, then Digital Output CCA
2A2A6XX was not faulty and troubleshooting in this leg continues.
PERFORM FOURTH MAINTENANCE ACTION - Refer to REPLACEMENT PROCEDURE
REFERENCE paragraph and determine procedural paragraph number to replace
2A2A7A6A7/13082714.
Replace Bus Multiplexer CCA 2A2A7A6A7.
Run VSGST - rerun test.
If VSGST test passes, then Bus Multiplexer CCA 2A2A7A6A7 was bad. No
further action required,
If VSGST test fails and its a different fault segment, then Bus Multiplexer
CCA 2A2A7A6A7 was faulty but another fault exists. Operator must then find
correct fault segment and continue troubleshooting.
If VSGST test fails and its the same fault segment, then Bus Multiplexer
CCA 2A2A7A6A7 was not faulty and troubleshooting in this leg continues.
7-7
