6 ) DATA SECURITY :
The scoreboard data is protected from general mains cut off without
limitation in time thanks to a battery.
7 ) OPERATION TEST :
To start the test :
- by pressing for 5 seconds on the timer "Reset" (2) key starts
simultaneously the tests of the scoreboard and keyboard.
Scoreboard test :
Consists of:
. the horn will sound for 1 second
. EPROM date display
. the positioning in black then white of all segments
. the return to normal display mode.
Keyboard test :
This sequence starts by the test of the keyboard visual display and buzzer
then ends with a keys test.
Keys test:
The name of each key appears on the keyboard. Press on the displayed
key to continue the test. (OK appears on the display).
- To interrupt the test sequence of the keyboard, press the "Start/Stop" (1) key.
- To interrupt the test sequence of the scoreboard and secondary
keyboard, stop the main keyboard test sequence as before then send
information to the scoreboard (scoring or horn for example).
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