LLZ 421
Operation and Maintenance Repair
ILS 420
6−45Ed. 01.10
SOAC
JUMPER POSITION DEFINITION REMARKS
J1 − used to program PLD factory use
J2 − used for processor debug factory use
J3 − not assembled
J4 − not assembled
J5 − not assembled
J6 − not assembled
J7 − not assembled
J8 − not assembled
SWITCH POSITION DEFINITION REMARKS
SW1 key Lamptest/Boot Normally used for lamp test.
Enables also programming of
flashing state label. If pressed
when coming out of reset it
will start the boot program-
ming of the board:
Press SW1 simultaneously
with SW2 to start loading pro-
gram of the board.
SW2 key Board Reset Reset of board processor
2b LLZ/GP Audio Generator/Monitor (LG−A, LG−M) 120570−0004 2 of 2
NOTE: The LLZ or GP installation can be equipped with the LGx Ref. 120570−0004, e.g. for replacement. The LGx 120570−0004 is
backward compatible to the LGx −0003 version and can be used with former standard Export SW kits used by the 120570−0003.
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