FIGURE 4-11. Simulator Power Connection

TM 55-4920-411-13&P

FIGURE 4-11. Simulator Power Connection

( t ) anti

3 (-) (figure FO-1). Voltage shall measure 12.0

h. If result is not as specified, check continuity of

0.6 vdc. If not, perform Troubleshooting Table 4-3 and

fuse (1/2A), power lamp, and POWER switch in on posi-

fig FO-1 as applicable.

tion. If open, replace fuse (58, figure 4-12) power lamp

(61) or POWER switch (56). Check for broken or loose

k. If SECONDS display starts running when power

wires. (See Troubleshooting Table 4-3 and fig 4-5.)

is applied to simulator and cannot be reset with

START/STOP, RESET switch. See Troubleshooting

i. If power lamp lights and SECONDS display does

Table 4-3 and use fig 4-5 as applicable.

not light, measure 5-volt nonregulated supply between

reference points E and F, and fig F0-1. Voltage shall

1. Press LAMP TEST switch. Lamps through L6

measure 5.0 0.5 vdc. If not, perform Troubleshooting

shall light. If not, see Table 4-3 and fig 4-1.

Table 4-3 and use fig FO-1 as applicable.

m. If some, but not all, lamps light, see Trouble-

j. If power lamp lights and SECONDS display does

shooting Table 4-3 as applicable.

not light, measure 12-volt supply between test points 2