Brivo OEC 715/785/865/865 Mobile C-Arm X-Ray Product Service Manual
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Display Board
Display board and membrane kit compose a whole control panel of C-Arm, installed in C-arm. Control panel kit
receives user input command and sends signal to Mainframe Control Board.
Power:
The power on display board include +5V, +15V and +3.3V, the +5V and+15V come from Mainframe Control Board,
+3.3V is generated by the +5V through power regulator on board.
Signals control:
Display Board connects with Mainframe Control Board through J2 (DB15), MCB controls the display board by SPI
BUS; SPI signals from MCB be isolated first, then control the 7-segment. LED displays and scans the 33 keys; also
the MCB controls the key indicator lights and forbidden lamp by SPI BUS, X-ray in use lamp controlled by MCB
directly.
6 interface:
Button indicator light Interface to user Requirements
The display board shall provide 17 button indicator lights interface to user.
X-Ray indicator Interface to user Requirements
The display board shall provide a yellow lamp interface to user. Shows X-Ray is in use.
Exposure Forbidden Interface to user Requirements
The display board shall provide a blue lamp Interface to user. Shows Exposure is forbidden.
Segment LED interface Requirements
The display board shall provide 11 7-segment LEDs interface to user.
Key Interface Requirements
The display board shall provide 33 keys Interface to connect with control panel.
MCB Interface Requirements
The display board shall provide MCB interface.
The MCB interface shall include following signals:
SPI_CLK: 38KHz;
SPI_CS2;
SPI_MOSI;
DB_INT;
INTERLOCK_B;
SPI_MISO;
SPI_CS1;
INTERLOCK_A
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