(b)
Remove the PDL interface cable from the connector on the front of the left (right) EICAS computer.
(c)
Close these circuit breakers and remove the DO-NOT-CLOSE tags:
1) On the P11 panel:
a) 11J2, EICAS CMPTR LEFT
b) 11J3, EICAS UPPER IND
c) 11J29, EICAS CMPTR RIGHT
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757 MAINTENANCE MANUAL
d) 11J30, EICAS LOWER IND
e) 11J31, EICAS DSPL SW
f) 11J32, EICAS PILOT DSPL
(d) Return the airplane into a serviceable condition.
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MAINTENANCE MANUAL
EICAS COMPUTER - REMOVAL/INSTALLATION
_____________________________________
1. General
_______
A. Two EICAS computers (M10181 - left, M10182 - right) are installed on rack E4-2 in the main equipment center. The front of the computers do not have system condition lights or BITE test buttons. All electrical connections are at the rear of the unit.
B. This procedure has two tasks. One is for EICAS computer removal; the other is for EICAS computer installation.
C. You will possibly have to install new software when you install the EICAS computer. You will possibly install the OPC. The OPS is the core software and will possibly not change.
TASK 31-41-02-004-027
2. EICAS Computer Removal
______________________
A. References
(1)
AMM 20-10-01/401, E/E Rack-Mounted Components
(2)
AMM 20-41-01/201, Electrostatic Discharge Sensitive Devices
B. Access
(1) Location Zones
119 Main Equipment Center
211/212 Flight Compartment
C. Prepare for Removal
S 864-003
(1) Open these circuit breakers on the overhead circuit breaker panel, P11, and attach DO-NOT-CLOSE tags:
(a)
11J2, EICAS CMPTR LEFT
(b)
11J29, EICAS CMPTR RIGHT
D. Procedure
S 914-028
CAUTION: DO NOT TOUCH THE EICAS COMPUTER BEFORE YOU DO THE PROCEDURE
_______ REMOVAL/INSTALLATION OF ESDS METAL UNITS (AMM 20-41-01/201). ELECTROSTATIC DISCHARGE CAN DAMAGE THE EICAS COMPUTER.
(1)
Do the procedure Removal/Installation of ESDS Metal Units (AMM 20-41-01/201).
(2)
Remove the EICAS computer (AMM 20-10-01/401).
S 024-022
TASK 31-41-02-404-029
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