Figure 3-3. SELF TEST RECEPTACLE J8, with cover opened.

TM 11-6625-441-12

Figure 3-3. SELF TEST RECEPTACLE J8, with cover opened.

should indicate 110 ±48 mW. Pause at each

the tolerances of f above, troubleshooting

position, and vary interphone control VOL control

of the interphone control is required.

from fully clockwise to fully counterclockwise and

g. Return interphone test set RECEIVER SEL

back to fully clockwise; the output meter indication

switch to position 1, and set interphone control

should vary from 0 to 110 ±48 mW.

transmit-interphone selector switch to position

n. Rotate interphone test set RECEIVER SEL

INT.

switch to position 7; the output meter should

h. Rotate interphone test set RECEIVER SEL

indicate 27 +12 mW. Vary interphone control VOL

switch from position 1 through 7; the output meter

c o n t r o l from fully clockwise to fully coun-

should read zero.

terclockwise and back to fully clockwise; the

i. Rotate interphone test set RECEIVER SEL

output meter should not vary,

switch to INTER; the output meter should indi-

o. On Test Set, Radio TS-1588A/AIC, rotate

cate 110 ±48 mW.

interphone test set RECEIVER SEL switch to

j. On Test Set, Radio TS-1588A/AIC, rotate

EMER; the output meter should indicate 27 + 12

interphone test set RECEIVER SEL switch to

mW. Vary interphone control from fully clockwise

EMER; the output meter should indicate 27±12

t o fully counterclockwise and back to fully

mW.

clockwise; the output meter should not vary.

k. Return Test Set, Radio TS-1588A/AIC inter-

p. Set interphone control RECEIVERS switches

phone test set RECEIVER SEL switch to position

NAV and 1 through 4 to OFF (down) position, and

RECEIVERS INT switch to ON (up) position.

j. Set interphone control RECEIVERS switches

q. Set interphone control transmit-interphone

NAV and 1 through 4 to ON (up position).

selector switch to position 1.

m. Rotate interphone test set RECEIVER SEL

r. Rotate interphone test set RECEIVER SEL

switch from position 1 through 6; the output meter