(g)  
The 3-digit display shows code 000 when the BIT switch is pressed and the memory contains no LRU entries, or all entries have been recalled.

 (h)  
If the BIT switch has been pressed and the BITE panel shows LRU fault, the display goes off 2 minutes |10 seconds after the last BIT switch actuation. Repeated operation again starts the latest recorded fault.

 (i)  
A memory RESET switch clears all memory contents when pressed.

 C.  
Control

 (1)  
Primary 28v dc operating power for the system is supplied by circuit breakers on overhead circuit breaker panel P11 and APU external power panel P34 (Fig. 4). The system is in operation when these circuit breakers are closed.

 (2)  
The front of the PSEU (Fig. 2) provides switches and indicator lights for checking out sensors, targets, cards and on-ground system trouble shooting. No adjustment is required at either the sensor or the PSEU.

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A
757 FAULT ISOLATION/MAINT MANUAL
PROXIMITY SWITCH SYSTEM
COMPONENT  SHT 102 FIG. QTY  ACCESS/AREA  REFERENCE AMM 
CARD - PSEU DRIVER, YTFM003  2  3 119BL, MAIN EQUIP CENTER, E3-4,  32-09-06 
PSEU M162
CARD - PSEU LOGIC 1, YTFM002  2  2  119BL, MAIN EQUIP CENTER, E3-4,  32-09-06 
PSEU M162
CARD - PSEU LOGIC 2, YTFM005  2 1  119BL, MAIN EQUIP CENTER, E3-4,  32-09-06 
PSEU M162 
CARD - PSEU PROX, YTFM001  2  6  119BL, MAIN EQUIP CENTER, E3-4,  32-09-06 
PSEU M162 
CIRCUIT BREAKER - 1 FLIGHT COMPARTMENT, P11 
DOOR IND, C4144  1  * 
LANDING GEAR POS SYS 1, C1175  1  *
LANDING GEAR POS SYS 2, C4279  1  *
LANDING GEAR POS SYS 2 ALTN, C4478  1  * 
PROX SW TEST, C4223  1  *
THRUST REVERSER CONT, C1482  1  * 
THRUST REVERSER CONT, C1483  1  *
THRUST REVERSER IND, C1480  1  *
THRUST REVERSER IND, C1481  1  *
CIRCUIT BREAKER - 1 119BL, MAIN EQUIP CENTER, P34 
LANDING GEAR CONTROL LEVER, M937 MODULE - (FIM 32-30-00/101) CARGO DR CONT, C1403  1  34A5  *
MODULE - PROXIMITY SWITCH ELECTRONICS UNIT (PSEU), M162  1  1  119BL, MAIN EQUIP CENTER, E3-4  32-09-06 
MODULE - PSEU BITE, YTFM004  2  1 119BL, MAIN EQUIP CENTER, E3-4,  32-09-06
 (FIM 52-71-00/ 101) SENSOR - DOOR SYSTEM PROXIMITY SENSOR - CARGO DOOR CONTROL SYSTEM S10373-S10378 S10350-S10359 PROXIMITY (FIM 52-34-00/101) S10083-S10097  PSEU M162 

* SEE THE WDM EQUIPMENT LIST
Proximity Switch System - Component Index
Figure 101 (Sheet 1)

 32-09-03
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 ú  01  Page 101
 ú  Jan 28/00 

 
G24910
A
757 FAULT ISOLATION/MAINT MANUAL
COMPONENT  SHT 102 FIG.  QTY  ACCESS/AREA  REFERENCE 
SENSORS - THRUST REVERSER SYSTEM PROXIMITY (78-36-00/101) (POSITION INDICATION)(32-61-00/101) SENSORS - LANDING GEAR SYSTEM PROXIMITY (AIR/GND)(32-09-00/101) SENSORS - LANDING GEAR SYSTEM PROXIMITY S10068 S10067 S10064 S10062 S10060 S10059 S10238-S10243 S10070-S10081 S10069 S10065-S10066 S10061 S10057 S10435-S10438 S164-S167 (78-34-00/101) SWITCH - AUTO RESTOW PROX SENSOR L & R (32-30-00/101) SWITCH - GEAR TRUCK TILT PRESSURE S452-S453 S10105-S10108 B A

 * SEE THE WDM EQUIPMENT LIST

AIRPLANES WITHOUT THRUST REVERSER SYNC-LOCKS AIRPLANES WITH THRUST REVERSER SYNC-LOCKS
Proximity Switch System - Component Index
　
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