(2)
Remove shock mount hold-down clamps.
(3)
Carefully pull unit from shock mount.
3. Install ATC Transponder
A. Slide transponder into rack and secure.
B. On airplanes requiring ATC transponder adapters.
(1)
Ensure transponder is securely fastened into adapter.
(2)
Slide unit into shock mount.
(3)
Fasten shock mount hold-down clamps.
(4)
Connect antenna and suppressor cables.
C. Close circuit breakers opened in step 2.A. above.
D. Test transponder
(1)
Provide electrical power.
(2)
Select STBY on ATC control module. Allow 1 minute warm up.
(3)
On ATC control module, select installed transponder. Set up and operate appropriate ATC system in mode A.
(4)
On installed transponder, depress TEST button. Verify REPLY light comes on.
(5)
Release TEST button.
(6)
Perform altitude-reporting test (if required) in par. 3, 4, or 5 of ATC System Adjustment/Test (Ref 34-53-0).
(7)
On ATC control module position function selector to STBY or OFF as appropriate.
(8)
Remove electrical power if no longer required.
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Jun 20/83 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 34-53-21 Page 401
AIR TRAFFIC CONTROL (ATC) CONTROL PANEL - REMOVAL/INSTALLATION
1. General
A. This subject has two tasks. The first task is the removal of the ATC control panel. The second task is the installation of the ATC control panel
B. The ATC control panel is installed in the forward electronics panel, P9.
C. Electrical connections are made through multipin connectors on the rear of the control panel.
2. ATC Control Panel Removal
A. Procedure
(1)
Open these circuit breakers and attach DO-NOT-CLOSE tags:
(a)
P6 Circuit Breaker Panel
1) ATC 2
(b)
P18 Circuit Breaker Panel
1) ATC1
(2)
Do these steps to remove the ATC control panel:
(a)
Loosen the quarter-turn fasteners on the control panel.
CAUTION: DO NOT TOUCH THE CONNECTOR PINS OR OTHER CONDUCTORS ON THE ATC CONTROL PANEL.IF YOU TOUCH THESE CONDUCTORS, ELECTROSTATIC DISCHARGE CAN CAUSE TO THE ATC CONTROL PANEL.
(b)
Pull the control panel out until you can get to the electrical connectors.
(c)
Disconnect the electrical connectors from the control panel.
(d)
Remove the control panel.
(e)
Install dust caps on the electrical connectors.
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May 01/99 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 34-53-31 Page 401
3. ATC Control Panel Installation
A. References
(1) 24-22-0/201, Electrical Power-Control
B. Procedure
(1)
Make sure these circuit breakers are opened:
(a)
P6 Circuit Breaker Panel
1) ATC 2
(b)
P18 Circuit Breaker Panel
1) ATC 1
(2)
Do these steps to install the ATC control panel:
CAUTION: DO NOT TOUCH THE CONNECTOR PINS OR OTHER CONDUCTORS ON THE ATC CONTROL PANEL. IF YOU TOUCH THESE CONDUCTORS, ELECTROSTATIC DISCHARGE CAN CAUSE DAMAGE TO THE ATC CONTROL PANEL.
(a)
Remove the dust caps from the electrical connectors.
(b)
Connect the electrical connectors to the control panel.
(c)
Install the control panel.
NOTE: The ATC mode S and ATC Non Mode S control panels are not interchangeable.
(d)
Tighten the quarter-turn fasteners on the control panel.
(3) Remove the DO-NOT-CLOSE tags and close these circuit breakers:
(a)
P6 Circuit Breaker Panel
1) ATC 2
(b)
P18 Circuit Breaker Panel
1) ATC 1
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34-53-31 Page 402 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. May 01/99
C. ATC Control Panel Test
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