Table 5-1. MTS Test Aid Troubleshooting-continued

TM 11-7010-201-40-5/ET821-AA-MMI-050/E154 MTS/T O 31S5-2TSQ73-2-5

Table 5-1. MTS Test Aid Troubleshooting - Continued

Fault indication

Probable cause

Corrective action

Indicators 1 through 72 do not go

Faulty wiring, switch SO1, or

Troubleshoot, repair wiring, and/or

off when DATA/FUNCTIONAL/

lamp driver IC.

replace switch SO1 or lamp driver

CONT switch SO1 is set to CONT.

IC.

Tested indicator does not light

Faulty wiring, inverter IC, or

Troubleshoot, repair wiring, and/or

when inverter input is jump wired

lamp driver IC.

replace inverter IC or lamp driver

to J01-259.

IC.

5-5