1 source-sensor board, 2 discrete i/o board, 3 ieee-488 option board – INFICON MDC-370 Thin Film Deposition Controller User Manual

Page 29: 7 digital to analog converter (dac) checkout

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MDC-370 DEPOSITION CONTROLLER

plugged into the third position will provide sensor inputs numbers 5 & 6, and
source outputs numbers 5 & 6.

3.6.1

SOURCE-SENSOR BOARD

1. Remove the chassis top cover.
2. Remove the three plastic hole-plugs from the rear panel.
3. Carefully slide the two BNC connectors on the Source-Sensor board into

the two top holes on the rear panel. Then with even pressure, push the
card edge connector down into the Main board at J12, J13 or J14.

4. Fasten the two BNC connectors using the nuts and washers supplied with

the kit. Make sure the board is properly aligned.

5. Tighten the board down with the tie wrap.
6. Replace the chassis top cover and apply power to the controller.
7. The Sign On screen should acknowledge a new Source-Sensor card

installed.

3.6.2

DISCRETE I/O BOARD

1. Remove the chassis top cover.
2. Locate Discrete I/O-2 slot and remove the slot cover.
3. Carefully slide the D37 connector of the DIO board into the slot and fasten

it using the hex fasteners and washers supplied with the kit.

4. Fasten the other end of the board to the standoffs using the two # 4-40

screws provided.

5. Plug the 26-pin ribbon connector into the DIO edge connector J1.
6. Replace the chassis top cover and apply power to the controller.
7. The Sign On screen should acknowledge Discrete I/O-2 installed.

3.6.3

IEEE-488 OPTION BOARD

1. Remove the chassis top cover.
2. Locate IEEE-488 option slot and remove the slot cover.
3. Carefully slide the connector of the IEEE-488 board into the slot and fasten

it using the fasteners and washers supplied with the kit.

4. Plug the 20-pin ribbon connector into J7 connector on the Main board.
5. Replace the chassis top cover and apply power to the controller.
6. The Sign On screen should acknowledge IEEE-488 option installed.

3.7

DIGITAL TO ANALOG CONVERTER (DAC) CHECKOUT

The built-in DAC function on the Main board contains two converters, allowing
simultaneous recording of any two of the following four parameters: Rate, Rate
deviation, Power and Thickness. The full-scale output of each converter is 5
volts, is single ended and is referenced to ground. Parameter selection for each of
the channels is accomplished independently by making the appropriate choices in
the DAC setup menu.

In addition to the individual channel output pins there are two control pins which
are common to both channels and are intended to simplify the process of setting
up analog recorders. Connecting the Zero control line to ground will drive both
channel outputs to zero, allowing the recorder zero reference to be easily set.

BENCH CHECKOUT & INSPECTION

3-5

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