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Page Title:
Figure 5-10. 3-Digit Readout Segments |
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 TM 9-4931-378-13&P
a. General Operational Checkout. Check the general
Set circuit breaker CB2 (46) to ON. (See
(6)
operation of the test set by performing the follow-
table 5-4, 26.)
ing procedure:
(7)
Observe 28 VDC lamp (45) illuminated.
(See table 5-4, 27.)
(8)
Observe ADS NO GO lamp (10) illumi-
nated. (See table 5-4, 28.)
Set SELF TEST switch S5 (11) to SELF
(9)
TEST.
HIGH VOLTAGE
(lo)
Observe all lamps on front panel illumi-
nated. (See table 5-4, 29 through 32.)
is used in the operation of this equip-
(11)
Observe DATA WORD display DS12 (23)
ment.
reads 888 with all segments present (fig-
ure 5-10.) (See table 5-4, 52 and 25).
DEATH ON CONTACT
(12)
Set SELF TEST switch S5 (11) to the off
(down) position.
may result if personnel fail to observe
(13)
Set TS MON switch S11 (52) to 115
safety precautions.
Learn the areas con-
VAC.
taining high voltage
in the test set. Before
Connect DVM positive lead to TP9 (50).
(14)
working inside the
equipment, turn pow-
(15)
Connect DVM negative lead to TP10
er off unless power
is required to perform
(51 ).
Read 108 Vac to 122 Vac on DVM. (See
the procedures.
(16)
table 5-4, 33. )
Set TS MON switch S11 (52) to 28 VDC.
(17)
(1) Ensure that facility power is applied to
Read 24 Vdc to 32 Vdc on DVM. (See
both power cables.
(18)
(2) Set circuit breaker CB1 (47) to ON. (See
table 5-4, 34.)
table 5-4, 22.)
Set TS MON switch S11 (52) to +10V.
(19)
(3) Observe 115 VAC lamp (48) illuminated.
Read 9.995 Vdc to 10.006 Vdc on DVM.
(20)
(See table 5-4, 23.)
(See table 5-4, 35 and 37.)
(4) Ensure DATA MODE switch S1 (4) is in
Set TS MON switch S11 (52) to-10V.
(21)
CONT.
Read -9.995 Vdc to -10.005 Vdc on
(22)
DVM. (See table 5-4, 36 and 38.)
( 5 ) Observe 000 on DATA WORD display
(23). (See table 5-4,24 and 25.)
Set TS MON switch S11 (52) to 5V.
(23)
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