Calibration
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4.3.2. mA calibration
Refer to the drawings at the end of this section for the location of the test points.
Provide appropriate X-ray protection on surface of Image Intensifier in calibration and
verification to protect Image Intensifier.
1. Install the MCB board with extend board and install the jumper to J46 on extend board.
2. Power on the system. Press keys “Ctrl +Shift+Alt+ →” on keyboard to invoke the service tool. Login
service tool with password. Click Calibration Tab, then click “mA Calibration” button,
“CA11” will
display on Mainframe control panel.
3. Set the multimeter to DC voltage mode. Connect multimeter to TP17 (MA-OFF) and TP1 (GND) on
MCB board. The test voltage is 0V. If not, adjust POT4 on MCB board.
Change and connect multimeter to TP8 (MA-DIGITAL) and TP1 (GND) on MCB board. The test voltage
about is 0.8V. If not, adjust POT5 on MCB board.
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