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757 MAINTENANCE MANUAL
EICAS DISPLAY UNITS (P2)
FLIGHT COMPARTMENT
HANDLE SCREWS
COOLING
SCREENS TOP DISPLAY UNIT (HANDLE IN)
BOTTOM DISPLAY UNIT (HANDLE IS OUT FOR REMOVAL)
EICAS DISPLAY UNIT (REAR VIEW)
EICAS DISPLAY UNIT
A
EICAS Display Units Figure 401
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(4) S 024-035Loosen the handle screws at the top left and bottom left corners of the display unit.
NOTE:____ Do not completely remove the handle screws.
(5) S 024-034Pull the handle out and to the right.
NOTE:____ If the handle is not fully extended when you remove the CRT, springs installed in the instrument panel can come out.
(6) S 024-026Carefully pull the display unit from the center instrument panel, P2.
TASK 31-41-01-404-025
3. EICAS Display Unit Installation (Fig. 401)
__________________________________________
A. References
(1)
20-41-01/201, Electrostatic Discharge Sensitive Devices
(2)
24-22-00/201, Electrical Power - Control
(3)
34-22-00/201, Cathode Ray Tube (CRT)
B. Access
(1) Location Zone
211/212 Flight Compartment
C. Procedure
S 864-006
(1) Make sure that these P11 panel circuit breakers are open:
(a) 11J3, EICAS UPPER IND or EICAS UPPER DISPLAY
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(b) 11J30, EICAS LOWER IND or
EICAS LOWER DISPLAY
S 434-007
CAUTION: DO NOT TOUCH THE EICAS DISPLAY UNITS BEFORE YOU DO THE
_______ PROCEDURE "REMOVAL/INSTALLATION OF ESDS METAL UNITS" (AMM 20-41-01). ELECTROSTATIC DISCHARGE CAN CAUSE DAMAGE TO THE EICAS DISPLAY UNITS.
(2)
Do the procedure Removal/Installation of ESDS Metal Units (Ref 20-41-01).
S 164-012
(3)
Clean the cooling air inlet screen at the rear of the display unit as necesssary (Fig. 401).
S 424-008
(4)
Make sure that the handle is in the fully extended position.
S 424-013
(5)
Carefully move the display unit into the correct position.
S 434-009
CAUTION: HOLD THE CRT HANDLE IN THE FLAT POSITION AGAINST THE UNIT WHILE
_______ YOU TURN THE SCREWS IN. YOU CAN CAUSE DAMAGE TO THE HANDLE IF YOU DO NOT HOLD IT UNTIL THE SCREWS ARE TIGHT.
(6) Turn and hold the CRT handle to the left and into the flat position.
S 434-010
CAUTION:_______DO NOT TIGHTEN THE SCREWS TOO MUCH. TOO MUCH PRESSURE CAN DAMAGE THE THREADS.
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