GENERAL AEROSPACE
Boeing 737-300
MAINTENANCE MANUAL
EFFECTIVITY
PW245
34-53-21GA
DRAWING # GA-KD28-ATC-MM
Page 401
Use and disclosure shall be in accordance with the proprietary legend located on the cover of this document
Aug 15/10
AIR TRAFFIC CONTROL (ATC) TRANSPONDER - REMOVAL/INSTALLATION
1.
General
A.
This procedure has two tasks. The first task is the removal of the ATC transponder. The second task is the
installation of the ATC transponder.
B.
The No. 1, and No. 2 ATC transponders are installed on the E2 rack in the main equipment center.
2.
ATC Transponder Removal
A.
References
(1)
AMM 20-10-07/201, E/E Rack Mounted Components
B.
Access
(1)
Location Zones
205 Electronic Compartment
(2)
Access Panels
1201 Electronics Equipment Access Door
C.
Procedure
(1)
Open these circuit breakers and attach DO-NOT-CLOSE tags:
(a)
P18 Load Control Center - Left
1)
ATC-1 AC
2)
ATC-1 DC
3)
TCAS Speaker
(b)
P6 Load Control Center - Right
1)
ATC-2 AC
2)
ATC-2 DC
CAUTION: Do not touch the connector pins or other conductors on the ATC transponder. If
you touch these conductors, electrostatic discharge can cause damage to the
ATC transponder.
(2)
Remove the ATC transponder (AMM 20-10-07/201).
(3)
Install dust caps on the electrical connectors.
3.
ATC Transponder Installation
A.
References
(1)
AMM 20-10-07/201, E/E Rack Mounted Component
(2)
AMM 24-22-00/201, Electrical Power - Control
B.
Access
(1)
Location Zones
205 Electronic Compartment
(2)
Access Panels
1201 Electronics Equipment Access Door
C.
Procedure
(1)
Make sure these circuit breakers are open:
(a)
P18 Load Control Center - Left
1)
ATC-1 AC
2)
ATC-1 DC
3)
TCAS Speaker
(b)
P6 Load Control Center - Right
1)
ATC-2 AC
2)
ATC-2 DC