S 864-015

 (6)
Close these circuit breakers and remove the DO-NOT-CLOSE tags:

 (a)  
P6 Circuit Breaker Panel
 1) F/O EADI
 2) F/O EHSI
 3) EFIS SYM GEN R

 (b)  
P18 Circuit Breaker Panel
 1) CAPT EADI
 2) CAPT EHSI

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 3) EFIS SYS GEN L

 S 864-026
 (7)  Make sure these circuit breakers are closed:
 (a)  
P6 Circuit Breaker Panel
 1) EFIS CONT PANEL R
 2) LANDING GEAR AIR/GND RELAY & LIGHTS

 (b)  
P18 Circuit Breaker Panel
 1) EFIS CONT PANEL L
 2) FMCS CMPTR
 3) CDU NO. 1
 4) CDU NO. 2
 5) MODE ANN (or FMCS BITE)

 S 864-018
 (8)  Make sure the EFI transfer switch on the pilots' overhead panel, P5, is in the NORMAL position.
 F. EFIS Symbol Generator Test
 S 744-019
 (1)  
Push the INIT/REF key on the FMCS CDU.

 S 744-020

 (2)  
Push the line select key (LSK) 6L (<INDEX) on the FMCS CDU.

 S 744-021

 (3)  
Push the LSK 6R (MAINT>).

 (a)  Make sure the FMCS CDU display shows the MAINT BITE INDEX 1/1 page.
 S 744-022
 (4)  
Push the LSK 5L (<EFIS).

 (a)  Make sure the FMCS CDU display shows the EFIS BITE TEST page.

 (5)  
Push the LSK 3L (<SELF TEST).

 S 864-021

 (6)
Set the mode switch on the EFIS control panel to the PLAN position.

 S 744-023
 (a)  Make sure the related EHSI display shows the PLAN mode test pattern.
 S 864-022
 (7) Set the mode switch on the EFIS control panel to the MAP position.
 (a)  Make sure the related EHSI display shows the MAP mode test pattern.
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 (b)  AIRPLANES WITH -420 AND ON EFIS SYMBOL GENERATORS; Make sure the EHSI shows the correct software version.
 NOTE: The software part number will appear on the left side of
____ the applicable EHSI as a 10-digit number preceded by the letters OPS (OPS XXX-XXXX-XXX).
 1)  If the part number is incorrect or missing, install the software (AMM 34-22-41/201) or replace the EFIS symbol generator with a SG that has the correct software.
 S 744-026
 (8) Push the INIT REF key on the FMCS CDU to get out of the EFIS BITE.
 G.  Put the Airplane Back to Its Usual Condition
 S 864-027
 (1)
Remove equipment cooling if it is not necessary (AMM 21-58-02/501).

 (2)
Remove electrical power if it is not necessary (AMM 24-22-00/201).

 S 864-061
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737-300/400/500MAINTENANCE MANUAL
 ELECTRONIC FLIGHT INSTRUMENT SYSTEM (EFIS)
__________________________________________ TRANSFER RELAY - REMOVAL/INSTALLATION
_____________________________________
 1.  General
_______
 A.  This procedure contains two tasks. The first task is for the removal of the EFIS transfer relay. The second task is for the installation of the EFIS transfer relay.
　
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