34-28-41
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A
737-300/400/500MAINTENANCE MANUAL
12) FMCS CMPTR
13) FMCS MODE ANN
14) F/O ADI (ALT)
15) F/O COMPASS XFMR (ALTN)
16) INSTRUMENT TRANSFER
17) INSTRUMENT XFMR-1
18) IRS 1 - AC
19) IRS 1 - DC
20) STANDBY HORIZON
S 864-004
(2) AIRPLANES WITH EFIS; Open these circuit breakers and attach DO-NOT-CLOSE tags:
(a) P6-1 Circuit Breaker Panel
1) CAPT COMPASS XFMR (ALTN), OR
INSTR XFMR-2 2) DAA NO. 2 DC 3) DAA/FMC NO. 2 AC 4) DAA/IRS NO. 2 AC 5) EADI-R 6) EFIS CONT PANEL-R 7) EFIS SYM GEN-R 8) EHSI-R 9) F/O VSI 10) F/O RDDMI 11) INSTR XFMR-2 12) IRS NO. 2 AC 13) IRS NO. 2 DC 14) VHF NAV-2 VOR/LOC 15) AUTO FLIGHT CONT SYS B ENGAGE INTLK A 16) AUTO FLIGHT CONT SYS B MAC TRIM AC 17) AUTO FLIGHT CONT SYS B MACH TRIM DC 18) AUTO FLIGHT CONT SYS B SNSR EXC AC 19) AUTO FLIGHT CONT SYS B WARN LIGHT (BAT) 20) AUTO FLIGHT CONT SYS B FCC DC
NOTE: Make sure that you close the AFCS B FCC DC circuit
____
breaker last.
(b)
P6-3 Circuit Breaker Panel
1) DIM AND TEST
2) SECONDARY
(c)
P18-1 Circuit Breaker Panel
1) AFDS AIL FORCE LIM
2) AFDS MCP DC
3) AUTO FLIGHT CONT SYS A ENGAGE INTLK A
4) AUTO FLIGHT CONT SYS A MAC TRIM AC
5) AUTO FLIGHT CONT SYS A MACH TRIM DC
6) AUTO FLIGHT CONT SYS A SNSR EXC AC
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737-300/400/500MAINTENANCE MANUAL
7) AUTO FLIGHT CONT SYS A WARN LIGHT (BAT)
8) AUTO FLIGHT CONT SYS A FCC DC
NOTE:____ Make sure that you close the AFCS A FCC DC circuit
breaker last.
9) AUTOTHROTTLE AC
10) AUTOTHROTTLE DC 11) DME-1 12) VHF NAV-1 VOR/LOC
(d) P18-2 Circuit Breaker Panel 1) CAPT RDDMI 2) CAPT RDDMI ALT 3) CAPT VSI 4) FMCS CDU NO. 1 5) DAA 1 - DC 6) DAA/FMC 1 - AC 7) DAA/FMC 1 - DC 8) DAA/IRS 1 - AC 9) EADI-L 10) EFIS CONT PANEL - L 11) EFIS SYM GEN-L 12) EHSI-L 13) FMCS CDU NO. 2 (if installed) 14) FMCS CMPTR 15) FMCS MODE ANN 16) F/O COMPASS XFMR (ALTN), OR
INSTR XFMR-1 17) INSTRUMENT TRANSFER 18) INSTRUMENT XFMR-1 19) IRS 1 - AC 20) IRS 1 - DC 21) STANDBY HORIZON
S 014-006
(3) Open the 1201L electronics equipment access door to get to the DAA (AMM 12-31-11/201).
S 244-052
CAUTION: DO NOT TOUCH THE CONNECTOR PINS OR OTHER CONDUCTORS ON THE DAA.
_______ IF YOU TOUCH THESE CONDUCTORS, ELECTROSTATIC DISCHARGE CAN CAUSE DAMAGE TO THE DAA.
(4) Remove the DAA from the shelf (AMM 20-10-07/201).
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34-28-41
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737-300/400/500MAINTENANCE MANUAL
TASK 34-28-41-404-051
3. Digital/Analog Adapter Installation
___________________________________
A. References
(1)
AMM 12-31-11/201, Body Section 41 Access Doors and Panels
(2)
AMM 20-10-07/201, E/E Rack-Mounted Components
(3)
AMM 24-22-00/201, Manual Control
B. Access
(1)
Location Zones
205 Electronic Compartment
(2)
Access Panels
1201L Electronic Equipment Access Door
C. Procedure
S 864-008
(1) AIRPLANES WITHOUT EFIS; Make sure these circuit breakers are open with DO-NOT-CLOSE tags attached:
(a) P6-1 Circuit Breaker Panel 1) F/O ADI 2) CAPT ADI (ALT) 3) CAPT COMPASS XFMR (ALTN) 4) DAA NO. 2 DC 5) DAA/FMC NO. 2 AC 6) DAA/FMC NO. 2 DC 7) DAA/IRS NO. 2 AC 8) F/O HSI 9) F/O VSI 10) F/O RDDMI 11) INSTR XFMR-2 12) IRS NO. 2 AC 13) IRS NO. 2 DC 14) VHF NAV-2 VOR/LOC 15) VHF NAV-2 G/S 16) AUTO FLIGHT CONT SYS B ENGAGE INTLK A 17) AUTO FLIGHT CONT SYS B MAC TRIM AC 18) AUTO FLIGHT CONT SYS B MACH TRIM DC 19) AUTO FLIGHT CONT SYS A SNSR EXC AC 20) AUTO FLIGHT CONT SYS B WARN LIGHT (BAT) 21) AUTO FLIGHT CONT SYS B FCC DC
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