(2)  
The function switch is normally set to the NORM position. In this position, power to the system is automatically controlled through the system power relays. The ON position is used manually to turn on the DFDAU and the DFDR. The TEST position is spring-loaded and is used to turn on power to the DFDAU and the DFDR for testing purposes.

 (3)  
The OFF light on the FRCP comes on when the DFDR and/or the DFDAU fails, the system is not turned on, or in the absence of electrical power.

 B.  GUN 001-008, 010, 101 PRE-EO B531006; GUN 009;
 Flight Data Entry Panel (FDEP)

 (1)  The FDEP is located on the right side panel. It contains all operating controls and indicators as well as logic circuits required to insert documentary data into the system. The following controls, switches, indicators and their functions are:
 (a)  Thumbwheel switches - set month, day, takeoff gross weight, flight number, flight leg and pilot identification.
 
 GUN 001-050, 052-999 ú  31-31-00
 ú CONFIG ú 01 Page 1 ú Sep 28/01

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MAINTENANCE MANUAL

GUN
GUN

D04480
Flight Data Recorder System - Component Location
Figure 1 (Sheet 1)

 GUN 001-050, 052-999 ú

 31-31-00
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MAINTENANCE MANUAL

LEFT MAIN WHEEL WELL . 3-AXIS ACCELEROMETER
SEE C
RIGHT MISCELLANEOUS RELAY PANEL (P37)
. SYSTEM 2 AIR/GROUND RELAY K206 AND K207

. RIGHT ENGINE START TO STOP RELAY 
. FLIGHT RECORDER/EFIS INPUT SWITCHING 
RELAY  LEFT MISCELLANEOUS RELAY 
. FLIGHT RECORDER/ADC INPUT SWITCHING RELAY  RACK E3-3 . DIGITAL FLIGHT  PANEL (P36) . LEFT ENGINE START 
DATA ACQUISITION  TO STOP RELAY 
UNIT 
SEE  D 

3-AXIS ACCELEROMETER
AMBER
FAULT

C
MONITOR
LIGHT

GUN
STATUS
GUN
PROGRAM GUN IDENT
READ
PLATE
FAIL

GUN GUN GUN
CAUTION
GUN
ACMS
DFDR FAIL DFDR
GUN
DFDAU
GUN
ACMS DFDAU
GUN GUN GUN DIGITAL FLIGHT DATA
DIGITAL FLIGHT DATA GUN ACQUISITION UNIT ACQUISITION UNIT
DIGITAL FLIGHT DATAGUN
3
D 1 ACQUISITION UNIT, M138 D GUN
GUN 1 GUN 001-008, 010, 101 PRE-EO B531006; GUN 009 D 2
GUN
2
GUN 001-008, 010, 101 POST-EO B531006;
GUN
3
GUN 102-999
GUN
Flight Data Recorder System - Component Location Figure 1 (Sheet 2)
D04479
 
 GUN 001-050, 052-999 ú 31-31-00
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