TM 11-7440-232-12/ NAVELEX 0967-LP-275-5010
TROUBLESHOOTING CHART NO. 1 (cont'd)
STEP
INSTRUCTION
INDICATION
YES
NO
REMARKS
For Model MD-701B/UY
Check for 115 V ac on
terminal board TB1, term-
inals 1 and 2, using test
hookup shown below.
3
Cont.
MD-701B/UY
SYSTEM NOMINAL
LINE VOLTAGE
ACCEPTABLE
(For All Models)
RESULT
112V ac
100-123V
X
Go to Step 5
117V ac
105-129V
X
Go to Step 5
122V ac
110-134V
X
Go to Step 5
If result is not acceptable, trouble is
outside the digital data modem ..............................................................................Go to Step 4
On models MD-701/UY
and MD-701AA/UY,
reconnect plug P1, and, if
unplugged, plugs P2 and
P3.
5-20
