TM 9-4910-663-34
(7)
Make certain that DC VARIABLE POWER SUPPLY 0-32 VDC control (T5, fig 2-7) is set fully
counterclockwise.
(8)
Set D.C. VARIABLE VOLTS switch (S10) to the ON position, and adjust DC VARIABLE POWER SUPPLY
0-32 VDC control (T5) to provide a 5 volt indication on DC VOLTMETER OUTPUT VOLTAGE meter (M2).
(9)
Check to see that the external DC voltmeter and AC VOLTMETER OUTPUT VOLTAGE meter (M6) both
indicate approximately 5 volts.
(10)
Set AC VOLTMETER OUTPUT VOLTAGE RANGE switch (S27) to the X2 position, and check to see that
AC VOLTMETER OUTPUT VOLTAGE meter (M6) indicates approximately 5 volts.
(11)
Repeat steps (1) through (3).
(12)
Leave the external DC voltmeter connected as in step (4).
(13)
Connect a test lead between the positive DC VARIABLE VOLTS OUTPUT binding post and the
ALTERNATOR (T1) binding post, and connect a second test lead between the negative DC VARIABLE VOLTS OUTPUT
binding post and the ALTERNATOR (T3) binding post.
(14)
Set AC VOLTMETER OUTPUT VOLTAGE SELECT switch (S28) to the CIRCUIT T1-T3 position.
(15)
Make certain that DC VARIABLE POWER SUPPLY 0-32 VDC control (T5) is set fully counterclockwise.
(16)
Set circuit breaker switch (CB1) and D.C. VARIABLE VOLTS switch (S10) to the ON position. Adjust DC
VARIABLE POWER SUPPLY 0-32 VDC control (T5) to provide a 5 volt indication on DC VOLTMETER OUTPUT
VOLTAGE meter (M2).
(17)
Check to see that the external DC voltmeter and AC VOLTMETER OUTPUT VOLTAGE meter (M6) both
indicate approximately 5 volts.
(18)
Repeat steps (1) through (3).
(19)
Leave the external DC voltmeter connected as in step (4).
(20)
Set AC VOLTMETER OUTPUT VOLTAGE SELECT Switch (S28) to the CIRCUIT T2-T3 position.
(21)
Connect a test lead from the positive DC VARIABLE VOLTS OUTPUT binding posts to the ALTERNATOR
(T2) binding post, and connect a second test lead from the negative DC VARIABLE VOLTS OUTPUT binding post to the
ALTERNATOR (T3) binding post.
(22)
Make sure that DC VARIABLE POWER SUPPLY 0-32 VDC control (T5) is set fully counterclockwise.
5-12
