(b)
Use the ohmmeter to compare the identification code values of the DB99CA connector to the values given in the WDM 34-53-13 for the applicable airplanes.
(c)
Each pin is one binary bit of the Mode S address.
(d)
A login value of zero is an open circuit on a pin.
(e)
A login value of one is a short circuit between the address pin and the address common pin (pin E3 on the DB99CA connector).
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(f) Install left ATC transponder (AMM 34-53-02/401).
S 755-263
(2)
Test Right ATC Mode-S Address
(a)
Remove the right ATC transponder to gain access to connector DB100CA (AMM 34-53-02/401).
(b)
Use the ohmmeter to compare the identification code values of the DB100CA connector to the values given in the WDM 34-53-23 for the applicable airplanes.
(c)
Each pin is one binary bit of the Mode S address.
(d)
A login value of zero is an open circuit on a pin.
(e)
A login value of one is a short circuit between the address pin and the address common pin (pin E3 on the (DB100CA connector).
(f)
Install the right ATC transponder (AMM 34-53-02/401)
(3)
Do the ATC system operation test.
S 715-292
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ATC CONTROL PANEL - REMOVAL/INSTALLATION
________________________________________
1. General_______
A. This procedure has two tasks. The first task is for the removal and the second task is for the installation of the ATC control panel. The installation task includes an operational test to be done after you install the ATC control panel.
B. The ATC control panel is installed in the pilots' electronic control stand (P8). Electrical connections are made through connectors at the rear of the control panel.
TASK 34-53-01-004-001
2. ATC Control Panel Removal_________________________
A. References
(1) 24-22-00/201, Manual Control
B. Access
(1) Location Zone
221 Control Cabin, LH
C. Procedure
S 864-002
(1)
Open these circuit breakers and attach DO-NOT-CLOSE tags:
(a)
P6 Main Power Distribution Panel 1) 6F19 FLT DECK LIGHTS PILOTS MISC IND 1 2) 6E22 FLT DECK LIGHTS PANEL CONT STAND
(b)
P7 Overhead Circuit Breaker Panel
1) 7B10 NAV RADIO ATC L
2) 7B22 NAV RADIO ATC R
(2)
Loosen the fasteners that hold the ATC control panel.
S 024-028
(3)
Pull the control panel out until you can get to the electrical connectors.
S 034-036
(4)
Disconnect electrical connectors DB37A and DB37B from the ATC control panel.
S 034-027
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S 034-031
(5) Install dust caps on the electrical connectors.
TASK 34-53-01-404-006
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