TM 9-4940-568-20
2-77
Table 2-9. Electrical System Troubleshooting (CONT).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4
5
5
Check for voltage between 24 VDC panel (4) switch (5) terminal #4 and a known good ground.
If voltage is preset, repair or replace wire between 24 VDC panel switch and circuit
breaker #4 (see schematic Figure 2-5). If voltage is not present, go to next test.
Check for voltage between 24 VDC panel (4) switch (5) terminal #3 and known good ground.
If voltage is present, replace 24 VDC panel switch (Para 3-3). If voltage is not present, go
to next test.
Check for voltage between input side of terminal position #24 and known good ground.
If voltage is present, repair or replace wire between output side of terminal position #24
and 24 VDC panel switch. If voltage is not present, repair or replace wire between
generator and input side of terminal position #24 (see schematic Figure 2-5).
