ILF 562, 588, 592-596, 686, 707-710, 833, 834, 854-856, 861-863, 871-874 (Continued)
2) CPS FREQ = BLANK
NOTE: When the AC voltage goes below approximately 12 VAC, the CPS FREQ
will become blank.
(j) Make sure the DC meter shows this value:
1) DC VOLTS = 0
(k) Set the STANDBY POWER switch on the P5-5 panel to the BAT position.
(l) Make sure the STANDBY PWR OFF light on the P5-5 panel goes off.
(m) Make sure the AC meter shows these values:
1) AC VOLTS = 110-120
2) CPS FREQ = 395-405
(n) Make sure the DC meter shows this value:
1) DC VOLTS = 20-28
(o) Set the STANDBY POWER switch on the P5-5 panel to the AUTO position.
E. Put the airplane in its usual condition.
SUBTASK 24-34-00-860-002
(1) If electrical power is not needed, do this task: Remove Electrical Power,
TASK 24-22-00-860-812.
NOTE: Leave electrical power on, if the battery needs charging.
END OF TASK
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
24-34-00
Page 502
D633A101-ILF Jun 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ILF ALL
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