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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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