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7.14.
Replacing the Control Circuit Board (PN 50-0145-CE)
PURPOSE:
This work instruction will replace the Control Circuit Board on a SPE-DEX 4790 Module.
TOOLS:
-
¼ inch Nut Driver
-
Phillips Screwdriver
PARTS REQUIRED:
50-0145-CE – Keypad Overlay
CAUTIONS:
Prior to beginning, the Controller should be turned off and the Module should have the data/power cable
unplugged.
PROCEDURE:
1.
Remove the five (5) screws from the rear of the Module using the ¼ inch Nut Driver.
2.
Remove the cover by holding the bottom of each side and pushing the bottom backwards to
disengage the front locking tabs. Lift the cover off.
3.
Unplug the Keypad, Ribbon cable, both Thermistors, the IR Sensor, and the Exhaust Fan from the
Control Circuit Board.
4.
Using a screwdriver, remove the four (4) screws holding the Control Circuit Board
5.
Replace the Control Circuit Board with the new part and tighten all screws making sure to attach the
KeyPad’s Grounding Wire to the bottom front screw.
6.
Attach the Keypad, Ribbon cable, the IR Sensor, and the Exhaust Fan to their labeled ports on the
Control Circuit Board.
7.
When replacing the Thermistors, refer to the table below:
When Facing Extractor Thermistor Height Main Circuit Board Connector
Right Side
Top
J6
Left Side
Bottom
J7
8.
Replace the cover.
Содержание SPE-DEX 4790
Страница 1: ...SPE DEX 4790 Solid Phase Extraction System Service Manual ...
Страница 6: ...5 Notes ...
Страница 35: ...34 18 0588 CE SPE DEX 4790 Key Pad 50 0145 CE Control Circuit Board 50 0027 03 External Nitrogen Regulator ...
Страница 39: ...38 ...
Страница 47: ...46 ...
Страница 59: ...58 8 Schematics 8 1 Nitrogen and Solvent Delivery System ...
Страница 60: ...59 8 2 Waste and Vacuum System ...