into view.
(f)
Set the IRS TRANSFER SWITCH on the P5-28 panel to the NORMAL position.
(g)
Close the No. 1 AIR DATA AC circuit breaker on the P18 panel.
(h)
Set the SYS DSPL switch on the ISDU to the to R position.
1) Make sure that the right display on the ISDU reads 100 |2 knots.
(i)
Open the No. 2 AIR DATA AC circuit breaker on the P6-1 panel. 1) Make sure that the display on the ISDU turns off. 2) Make sure that the flag on the first officer's VSI comes
into view.
(j)
Set the IRS TRANSFER SWITCH on the P5-28 panel to the BOTH ON R position. 1) Make sure that the flag on the captain's VSI comes into
view.
(k)
Set the IRS TRANSFER SWITCH on the P5-28 panel to the NORMAL position.
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(l) Close the No. 2 AIR DATA AC circuit breaker on the P6 panel.
G. Master Dim and Test
S 735-058
(1) Do these steps to do the master dim and test procedure.
CAUTION:_______SOME SWITCHES MUST BE PULLED AND THEN TURNED. IF YOU TRY TO TURN THESE SWITCHES BEFORE YOU PULL THEM, YOU CAN DAMAGE THEM.
(a)
Set the switches on the MSU to the ALIGN position.
(b)
Set the DSPL SEL switch on the ISDU to the PPOS position.
(c)
Turn the inner DSPL SEL switch (BR) on the ISDU clockwise.
(d)
Set and hold the DIM and TEST switch on the pilot's center instrument panel in the TEST position. 1) Make sure that all of the lights on the ISDU turn on. 2) Make sure that all of the lights on the MSU turn on.
(e)
Release the DIM and TEST switch on the pilot's center instrument panel.
(f)
Turn the inner DSPL SEL switch (BR) on the ISDU counterclockwise.
(g)
Set the DIM and TEST switch on the pilot's center instrument panel to the DIM position.
(h)
Push the lights on the MSU one at a time. 1) Make sure that the lights on the MSU come on one at a time.
(i)
Set the DIM and TEST switch on the pilot's center instrument panel to the BRT position. 1) Make sure that only the ALIGN lights on the MSU are on.
(j)
Set the switches on the MSU to the OFF position.
1) After approximately 20 to 40 seconds, make sure that the ALIGN lights on the MSU turn off.
H. Five Minute Time Delay Check
S 735-059
(1) Do these steps to do the five minute time delay check.
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CAUTION:_______SOME SWITCHES MUST BE PULLED AND THEN TURNED. IF YOU TRY TO TURN THESE SWITCHES BEFORE YOU PULL THEM, YOU CAN DAMAGE THEM.
(a)
Set the switches on the MSU to the ALIGN position.
(b)
Open these circuit breakers: 1) P6-1 Electronic System F/O Circuit Breaker Panel a) IRS NO. 2 AC 2) P18-2 Electronic System Captain Circuit Breaker Panel a) IRS NO. 1 AC
3) In less than 30 seconds, make sure that the crew horn operates.
(c)
Open the LANDING GEAR AIR/GND RELAY AND LIGHTS circuit breaker on the P6 panel. 1) Make sure that the BAT switch on the P5 panel is on. 2) Make sure that the two ALIGN lights on the MSU are on. 3) Make sure that the two ON DC lights on the MSU are on. 4) After approximately 5 seconds, make sure that the two IRS
master caution lights on the pilot's lightshield come on.
5) After 5 minutes, make sure that: the ALIGN and ON DC lights on the right side of the MSU are off, the ALIGN and ON DC lights on the left side of the MSU are on.
(d) Close these circuit breakers: 1) P6 Load Control Center, Right Panel a) LANDING GEAR AIR/GND RELAY AND LIGHTS 2) P6-1 Electronic System F/O Panel a) IRS NO. 2 AC
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