TM 5-3805-296-23-2
0140
Table 1. Blackout Headlamp Does Not Operate Continued.
0140
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Blackout Headlamp Does
Test Step 3. Test Voltage to Blackout
Not Operate Continued
Headlamp.
1. Disconnect connector T-C2
(WP 0012, Figure 194) from
blackout headlamp connector T-T1
(WP 0012, Figure 193).
2. Turn battery disconnect switch to
ON position (TM 5-3805-296-10).
3. Turn mode switch on military light
switch to B.O. DRIVE position
(TM 5-3805-296-10).
4. Using digital multimeter
Voltage 18 to 26 V Replace blackout
(WP 0540), test for voltage
headlamp (WP 0379).
between connector T-C2 terminal
Proceed to Test Step 14.
1 (WP 0012, Figure 194) and T-T1
Voltage Less Than 18 V Proceed to
ring terminal ground
Test Step 4.
(WP 0012, Figure 195).
Test Step 4. Test for Open Military
Light Switch.
1. Turn mode switch on military light
switch to OFF position
(TM 5-3805-296-10).
2. Turn battery disconnect switch to
OFF position (TM 5-3805-296-10).
3. Disconnect connector H-C9
(WP 0012, Figure 242) from
military light switch
(WP 0012, Figure 241).
4. Turn mode switch on military light
switch to B.O. DRIVE position
(TM 5-3805-296-10).
5. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0540), measure resistance
Proceed to Test Step 5.
between military light switch
Resistance Greater Than 5.0 Ohms
terminal D and terminal F
Replace military light switch (WP 0517).
(WP 0012, Figure 241).
Proceed to Test Step 14.
0140-5
