(2)
Access Panels
1201 Electronic Equipment Access Door
C. Procedure
S 864-003
(1) Open these circuit breakers and attach DO-NOT-CLOSE tags:
(a)
P6 Circuit Breaker Panel
1) F/O EHSI
2) F/O EADI
3) EFIS SYM GEN R
(b)
P18 Circuit Breaker Panel
1) CAPT EHSI
2) CAPT EADI
3) EFIS SYM GEN L
4) INST TRANS
S 024-023
CAUTION: DO NOT TOUCH THE CONNECTOR PINS OR OTHER CONDUCTORS ON THE EFIS
_______ SYMBOL GENERATOR. IF YOU TOUCH THESE CONDUCTORS, ELECTROSTATIC DISCHARGE CAN CAUSE DAMAGE TO THE EFIS SYMBOL GENERATOR.
(2)
Remove the applicable EFIS symbol generator (AMM 20-10-07/201).
(3)
Install dust caps on the electrical connectors.
S 034-024
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH EFIS ú
34-22-41
ú ú 01 Page 401 ú Jul 15/95
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
TASK 34-22-41-404-005
3. EFIS Symbol Generator Installation
__________________________________
A. General
(1) AIRPLANES WITH -420 OR -421 EFIS SYMBOL GENERATORS; The correct software part number must be installed in the new EFIS symbol generator. Do a check of the software part number with the EFIS Symbol Generator Test. The part number will show in the PLAN or MAP mode test pattern. If you cannot complete the EFIS Symbol Generator Test because no software is installed, then install the software (AMM 34-22-41/201) or replace the EFIS symbol generator with one that has the correct software.
B. References
(1)
AMM 20-10-07/201, E/E Rack-Mounted Components
(2)
AMM 21-58-02/501, Equipment Cooling System
(3)
AMM 24-22-00/201, Manual Control
(4)
AMM 34-28-01/201, Inertial Reference System
C. Access
(1)
Location Zones
101/102 Flight Compartment
205 Electronic Compartment
(2)
Access Panel
1201 Electronic Equipment Access Door
D. Procedure
S 864-007
(1) Make sure these circuit breakers are open:
(a)
P6 Circuit Breaker Panel
1) F/O EHSI
2) F/O EADI
3) EFIS SYM GEN R
(b)
P18 Circuit Breaker Panel
1) CAPT EHSI
2) CAPT EADI
3) EFIS SYM GEN L
4) INST TRANS
S 434-025
CAUTION: DO NOT TOUCH THE CONNECTOR PINS OR OTHER CONDUCTORS ON THE EFIS
_______ SYMBOL GENERATOR. IF YOU TOUCH THESE CONDUCTORS, ELECTROSTATIC DISCHARGE CAN CAUSE DAMAGE TO THE EFIS SYMBOL GENERATOR.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH EFIS ú
34-22-41
ú ú 03 Page 402 ú Mar 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
(2)
Remove the dust caps from the electrical connectors.
S 214-027
(3)
Examine the unit and rack connectors for unwanted materials and loose or damaged pins.
S 424-009
(4)
Install the EFIS symbol generator (AMM 20-10-07/201).
E. Prepare For the EFIS Symbol Generator Test
S 864-010
(1)
Supply electrical power (AMM 24-22-00/201).
S 864-064
(2)
Align the IRU's (AMM 34-28-01/201).
S 754-011
(3)
Make sure the BAT switch on the pilots' forward overhead panel is in the ON position.
S 864-012
(4)
Make sure the STANDBY POWER switch on the pilots' forward overhead panel is in the AUTO position.
S 914-013
CAUTION: MAKE SURE THAT YOU OPERATE THE EQUIPMENT COOLING SYSTEM BEFORE
_______ YOU ENERGIZE AN ELECTRONIC SYSTEM. TOO MUCH HEAT CAN CAUSE DAMAGE TO ELECTRONIC EQUIPMENT.
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