30 Service manual
3. Circuit Boards - L1200, CPU Board CRANEX
®
Novus e
L1200 - Description
The CPU board controls the unit. It controls the rota-
tion and Z movements, the operation of the X-ray tube
and reads the signals from the touch panel. It uses an
embedded microcontroller on an Altera Cyclone FPGA
circuit. The board also has an Ethernet transceiver (for
PC connection), I/O buffers, and a 14-bit A/D converter.
The image data are saved in an SDRAM.
L1200 - Indicator LEDs
LED Colour Indicates
D6 green +5V on
D8 green Ethernet signal activity
D9 green 10-Base-T (10Mbit/s) in use
D10 green 100-Base-T (100MBit/s) in use
D11 green 1000-Base-T (1000MBit/s) not supported
D12 green Full Duplex mode in use
D13 green +1.2V
D14 green +1.8V
D20 green +5V
D23 green +3.3V
TEST1 green Flashing = Core functioning
TEST2 green Flashing = Firmware functioning
TEST3 green Flashing = Not currently used
L1200 - Test Points
None
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