(2)
AMM 24-22-00/201, Manual Control
B. Access
(1)
Location Zone
205 Electronic Compartment
(2)
Access Panel
1201L Electronic Equipment Access Door
C. Procedure
S 864-006
(1) Make sure that these circuit breakers are open:
(a)
P6 Circuit Breaker Panel
1) F/O ADI
2) CAPT ADI (ALT)
3) DAA NO. 2 FMC
4) DAA NO. 2 FMC AC
5) DAA NO. 2 IRS AC
6) DAA NO. 2 IRS DC
(b)
P18 Circuit Breaker Panel
1) INSTR XFER
2) CAPT ADI
3) F/O ADI (ALT)
4) DAA NO. 1 FMC
5) DAA NO. 1 FMC AC
6) DAA NO. 1 IRS AC
7) DAA NO. 1 IRS DC
S 424-007
(2)
Connect the relay to the rack.
(3)
Install the screws into the face of the relay.
S 864-009
(4)
Remove the DO-NOT-CLOSE tags and close these circuit breakers:
S 434-008
(a) P6 Circuit Breaker Panel
1) F/O ADI
2) CAPT ADI (ALT)
3) DAA NO. 2 FMC
4) DAA NO. 2 FMC AC
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A
737-300/400/500MAINTENANCE MANUAL
5) DAA NO. 2 IRS AC 6) DAA NO. 2 IRS DC
(b) P18 Circuit Breaker Panel
1) INSTR XFER
2) CAPT ADI
3) F/O ADI (ALT)
4) DAA NO. 1 FMC
5) DAA NO. 1 FMC AC
6) DAA NO. 1 IRS AC
7) DAA NO. 1 IRS DC
D. Attitude Transfer Relay Test
S 864-011
(1)
Make sure that these circuit breakers are closed:
(a)
P6 Circuit Breaker Panel 1) F/O ADI 2) CAPT ADI (ALTN) 3) CAPT COMPASS XFMR (ALTN) AC 4) DAA NO. 2 FMC 5) DAA NO. 2 FMC AC 6) DAA NO. 2 IRS AC 7) DAA NO. 2 IRS DC 8) DIM AND TEST 9) INSTR XFMR-2 10) IRS NO. 1 AC 11) IRS NO. 1 DC 12) MASTER DIM BUS BAT 13) MASTER DIM BUS NO. 1 DC 14) MASTER DIM BUS NO. 2 DC 15) MASTER DIM BUS SECT 2
(b)
P18 Circuit Breaker Panel 1) CAPT ADI 2) DAA NO. 1 FMC 3) DAA NO. 1 FMC AC 4) DAA NO. 1 IRS AC 5) DAA NO. 1 IRS DC 6) EQUIPMENT COOLING BLOWER ALTN AC 7) EQUIPMENT COOLING BLOWER NORMAL AC 8) EQUIPMENT COOLING CONTROL 9) F/O ADI (ALTN) 10) F/O COMPASS XFMR (ALTN) AC 11) INSTR XFMR-1 12) IRS NO. 2 AC
(2)
Supply the electrical power (AMM 24-22-00/201).
S 864-013
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A 737-300/400/500MAINTENANCE MANUAL
(3) S 864-015Supply cool air to the IRU's (AMM 21-58-00/501).
(4) S 864-019Set the ATTITUDE transfer switch on the P5 panel to the NORMAL position.
S 864-033
CAUTION:_______SOME SWITCHES MUST BE PULLED AND THEN TURNED. IF YOU TRY TO TURN THESE SWITCHES BEFORE YOU PULL THEM, YOU CAN DAMAGE THEM.
(5) Set the switches on the mode select unit (MSU) to the ALIGN or NAV position.
NOTE: You can find the MSU on the P5 panel.
____
S 714-031
(6) Do these steps to do a test of the attitude transfer relay:
NOTE: Do not start the test less than 20 seconds after you set the
____ MSU switches.
(a)
Set the ATTITUDE switch on the P5 panel to the NORMAL position.
(b)
Set the SYS DSPL switch on the inertial system display unit (ISDU) to the L position.
(c)
Set and hold the DSPL SEL switch on the ISDU in the TEST position.
(d)
After 10 seconds, make sure that these occur: 1) The pitch display on the captain's ADI reads 5 degrees pitch up. 2) The roll display on the captain's ADI reads 45 degrees roll
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