(a)  This procedure supplies examples for operation of these ADLs: 1) Allied Signal (Sundstrand) 2) Teledyne 3) SFIM

 (7)  
Portable Data Loaders (PDL)

 (a)  
A PDL has an interface cable that is connected to the DATA TRANSFER UNIT RECEPTACLE connector (P61) or to the FMC DATA BASE LOADER connector (left side) in the flight compartment. The circuit breaker that supplies power for the PDL must be open when a PDL is connected or disconnected.

 (b)  
PDLs are not Boeing supplied parts. Refer to the data loader supplier for instructions for PDL operation.

 B. References
 (1)  AMM 24-22-00/201, Control
 C. Allied Signal (Sundstrand) Airborne Data Loader Procedure
 S 862-003
 (1)  The Allied Signal ADL has these status lights:
 (a)  
PROG (In Progress) - shows as software installation occurs.

 (b)  
CHNG (Change) - shows when it is time to install the next disk.

 (c)  
COMP (Complete) - shows when the software installation is completed.

 (d)  
RDY (Ready) - shows when the disk is in the disk drive and the ADL is ready to install the software in the component. 1) If the RDY indication flashes, then the data loader is in

 standby mode while it waits for the component to validate the data.
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757 MAINTENANCE MANUAL
PILOT'S RIGHT SIDEWALL PANEL, P61

DATA LOAD SEL
SYSTEM SELECT SWITCH
SYSTEM SELECT SWITCH
DATA LOADER CONTROL PANEL
DATA LOADER CONTROL PANEL
(EXAMPLE)
(EXAMPLE)

On-Airplane Software Installation
Figure 201 (Sheet 1)

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L03571
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757
MAINTENANCE MANUAL

CONNECTOR PANEL
FOR PORTABLE DATA LOADER

On-Airplane Software Installation
Figure 201 (Sheet 2)

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MAINTENANCE MANUAL

On-Airplane Software Installation
Figure 201 (Sheet 3)

L04676
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A 757 MAINTENANCE MANUAL
 (e) (f) (g)  XFER (Transfer Fail) - shows when the software installation is not completed. Open and close the circuit breaker for the component, and start the installation again.R/W (Read/Write) - shows when the ADL cannot read or write the data on the disk. Open and close the circuit breaker for the component, and start the installation again. If the problem continues, then replace the disk.HRDW (Hardware) - shows when the ADL fails the self test.
 (2)  S 862-041Supply electrical power (AMM 24-22-00/201). (a) Make sure that the power is not removed while you install software.
 NOTE:____ A power interruption will cause a failure of the software installation.
 (3)  S 862-004Make sure that the system select switch on the data loader control panel (P61) is set to the NORMAL position.
 (4)  S 862-005Open this circuit breaker: (a) On the overhead circuit breaker panel, P11: 1) 11F23, DATA LOADER
　
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