RUN EXCITE: Service & Maintenance Manual - rev. 1.5
This is the heart of the display: this board acts as the interconnection hub for all the
components of the display, and serves as the point of connection with the electrical box. In
particular, its functions are:
>
receives commands of the machine program from the 386 Board;
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sends to the 386 Board the signals received from:
- Keyboard;
- Cardio receiver;
- Hand Sensor Board;
- TGS/Smart Card Board;
- CSafe Board;
- Speed and elevation joystick (900 model only).
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Distributes to the display the voltages received from the Power Supply Board;
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Controls the User Fan;
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Houses the backup battery which maintains the RAM memory on the 386 board;
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Exchanges, over the RS-485 serial link to the inverter, and via the Download Board,
commands for controlling the belt and elevation motors.
The board includes the following indicator LEDs:
LED name Color Description
DL1 not assembled -
DL2 not assembled -
DL3 green
if ON the +5 Vdc supply is correctly
stabilized by the Digital Plan board.
DL4 orange
if ON the +5 Vdc supply provided by the
Power Supply Board, correctly reaches the
board.
DL5 green
if ON the +12 Vdc supply provided by the
Power Supply Board, correctly reaches the
board.
and 2 jumpers:
Jumper Name Setting Description
JP1 open if short-circuited, resets the circuit board.
JP2 close
if short-circuited, keeps the memory powered
when the machine is off.
Page 3.3
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