LLZ 421
Operation and Maintenance Repair
ILS 420
6−37Ed. 01.10
SOAC
LGX Bootloader Version 2.00
LCP to LGX CONTROL MENU
S1: Load firmware to LGA−1
S2: Load firmware to LGA−2
S3: Load firmware to LGM−1
S4: Load firmware to LGM−2
S1+S2: Exit to start LCP operation SW
Press the button until beep sounded !
control buttons (S)
14
2
3
1
4
2
3
LGX Bootloader Version 2.00
LCP to LGX CONTROL MENU
Connection to LGA−1 established !
Type S4 to abort
LCP: 0 bytes LGA−1: 0 bytes
a
b
Fig. 6−9 LGX bootloader menu (example)
6.6.3.4.3 Load Firmware of LG−A and LG−M to the same LG−X board
The procedure of loading the firmware for LG−A or LG−M to an individual LG−X as described in
6.6.3.4.2 is one recommended possibility. A second one is to load both firmware versions to the same
LG−X board. This allows to insert this board both in the locations of LG−A or L−M for the individual
transmitter. Doing this the loaded firmware remains stored, but the specific data are lost.
NOTE: The specific data (e.g. alarm limits, nominal values, transmitter parameter, calibration and
normalization data are lost changing the LG−X operational function. The specific data
have to be reloaded !
Perform the firmware loading procedure as follows.
NOTE: The sequence of the firmware loading procedure is as described in 6.6.3.4.2 e) to i), but
it is performed inserting the LG−X each to the location of LG−A respectively LG−M.
Switch off equipment before inserting/replacing the board.
a) Shutdown equipment with switches TX1 and TX2.
b) Insert LG−X board to location LG−A.
c) To start the special function menu, press buttons S1 and S4 simultaneously on the LCP immedi-
ately after power on and hold pressed until screen of LCP contains Control menu information (see
Fig. 6−8 a).
d) Press button S4 at least 1 s to start the LGX bootloader menu (Fig. 6−9 a).
e) Select one of the upcoming menu points (Fig. 6−9 a) according to the board which has to be
installed. Perform loading procedure as described in 6.6.3.4.2 e) to i).
f) Shutdown equipment with switches TX1 and TX2.
g) Insert LG−X board to location LG−M.
h) To start the special function menu, press buttons S1 and S4 simultaneously on the LCP immedi-
ately after power on and hold pressed until screen of LCP contains Control menu information (see
Fig. 6−8 a).
i) Press button S4 at least 1 s to start the LGX bootloader menu (Fig. 6−9 a).
j) Select one of the upcoming menu points (Fig. 6−9 a) according to the board which has to be
installed. Perform loading procedure as described in 6.6.3.4.2 e) to i).
k) Shutdown equipment with switches TX1 and TX2.
NOTE: The firmware is now loaded to the board. However the specific parameter have to be re-
loaded using the board as LG−A respectively LG−M.
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