S 865-120

 (17)
 Close this circuit breaker:

 (a)  P7 Circuit Breaker Panel 1) B03 RADIO ALTM L
 S 755-121
 (18)
 Make sure that bit 25 is set to "0".

 S 865-122

 (19)
 Open this circuit breaker:

 (a)  P7 Circuit Breaker Panel 1) C21 RADIO ALTM R
 S 755-123
 (20)
 Make sure that bit 25 is set to "1".

 S 865-124

 (21)
 Close this circuit breaker:

 (a)  P7 Circuit Breaker Panel 1) C21 RADIO ALTM R

 (22)
 Enter E/002/354/00.

 S 865-125
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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MAINTENANCE MANUAL

 S 865-126
 (23) Open this circuit breaker:
 (a)  P7 Circuit Breaker Panel 1) B04 RADIO ALTM C
 S 755-127
 (24)
 Make sure that bit 11 is set to "1".

 S 865-128

 (25)
 Close this circuit breaker:

 (a)  P7 Circuit Breaker Panel 1) B04 RADIO ALTM C
 S 865-129
 (26)
 Enter E/002/350/00.

 S 865-130

 (27)
 Open these circuit breakers:

 (a)  P6 Circuit Breaker Panel 1) D07 IRS LEFT AC 2) E07 IRS LEFT DC
 S 755-131
 (28)
 Make sure that bit 13 is set to "1".

 S 865-132

 (29)
 Close these circuit breakers:

 (a)  P6 Circuit Breaker Panel 1) D07 IRS LEFT AC 2) E07 IRS LEFT DC
 S 865-133
 (30)
 Enter E/002/354/00.

 S 865-134

 (31)
 Open these circuit breakers:

 (a)  P6 Circuit Breaker Panel 1) D09 IRS RIGHT AC 2) E09 IRS RIGHT DC

 (32)
 Make sure that bit 12 is set to "1".

 S 755-135
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 S 865-136
 (33) Close these circuit breakers:
 (a)  P6 Circuit Breaker Panel 1) D09 IRS RIGHT AC 2) E09 IRS RIGHT DC
 S 865-137
 (34)
 Enter E/002/350/00.

 S 865-138

 (35)
 Open this circuit breaker:

 (a)  P7 Circuit Breaker Panel 1) C01 FMCS FMC L
 S 755-139
 (36)
 Make sure that bit 21 is set to "1".

 S 865-140

 (37)
 Close this circuit breaker:

 (a)  P7 Circuit Breaker Panel 1) C01 FMCS FMC L
 S 865-141
 (38)
 Enter E/002/350/00.

 S 865-142

 (39)
 Open this circuit breaker:

 (a) P7 Circuit Breaker Panel 1) A10 ADC L PWR
 S 755-143
 (40)
 Make sure that bit 12 is set to "1".

 S 865-144

 (41)
 Close this circuit breaker:

 (a) P7 Circuit Breaker Panel 1) A10 ADC L PWR

 (42)
 Enter E/002/354/00.

 S 865-146

 (43)
 Open this circuit breaker:

 S 865-145
 (a) P7 Circuit Breaker Panel 1) A14 ADC R PWR
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 34-46-00
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 S 755-147
 (44)
 Make sure that bit 13 is set to "1".

 S 865-148

 (45)
 Close this circuit breaker:
　
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