TM 11-6625-2638-30
Table 2-3. Test Set Troubleshooting
STEP
PROCEDURE
NORMAL INDICATION
ABNORMAL INDICATION
CORRECTIVE ACTION
NOTE
Refer to FO-2 for connector pin locations.
1
Place test set on test bench with lid open.
2
Set all switches CCW, 1, down, off or minimum position.
Ensure 115 vac and 28 vdc power source is off before connecting power
cables. Contact with 115 vac may cause injury or death.
3
Connect 28 vdc power as follows:
a. Connect green wire to ground.
b. Connect white wire to return.
c. Connect black wire to 28 vdc.
4
Connect 115 vac power as follows:
a. Connect green wire to ground.
b. Connect white wire to return.
c. Connect black wire to 115 vat.
5
Apply power to test equipment,
NOTE
The test set power supply has a 10 second delay.
6
Place POWER switch to ON
AC and DC POWER lamps on
AC lamp off
a. Verify that 115 vac power cord is connected to good 115 vac power.
b. Check 2 AMP fuse and replace if blown.
c. Check AC lamp and replace if open.
d. Check continuity (para 2-12).
DC lamp off
a. Verify that 28 vdc power cord is connected to good 28 vdc power
b. Check 10 AMP fuse and replace if blown.
c. Check ac Iamp and replace if open.
d. Check continuity (para 2-12).
2-6
Previous Page
