Newport e500 Solenoid PCB Disassembly

Geschrieben von: Seth Aguilar

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Schwierigkeitsgrad

Difficult

Schritte

Zeitaufwand

30 Minuten

Einleitung

This guide will cover how to replace the solenoid PCB if it no longer operates as intended. Be sure to handle with care when unplugging cables and wires as to prevent any further damage and new replacements. There are some extra helpful tips that can be found in the user manual on page 67.

Werkzeuge

Schritt 1

Place device so that the top cover is facing you.
Open the top cover.

Schritt 2

Remove the four hex nuts and lock washers (two at each hinge) that secure the cover to the hinges on the left side of the pneumatic box.

Schritt 3

Remove the cover and set aside. Retain hardware for re-assembly.

Schritt 4

Pull up and remove the flexible rubber exhalation outlet boot (push fit).

Schritt 5

Disconnect the tubes from both sides of the flow sensor and the two tubes from the exhalation valve.

Schritt 6

Pull the exhalation module straight up to remove it from the GDU.

Schritt 7

Remove the 2 screws and washers securing the manifold/mixer assembly

Schritt 8

Slide the manifold/mixer assembly forward to disengage the flow sensors

Schritt 9

Gently pull each flow sensor straight out from the servo valve, (the flow sensor push-fits into the servo valve port).

Schritt 10

Disconnect the flow sensor cable from its 10 pin connector at the underside of the flow sensor PCB and lift out the flow sensor.

Schritt 11

Remove the screw and washer that secure the exhalation manifold support to the pneumatic panel.

Schritt 12

Pull up on the exhalation valve guide block to remove it from the pneumatic box.

Schritt 13

Remove the standoff and five screws and washers that secure the pneumatic panel to the pneumatic box.

Schritt 14

Lift the pneumatic panel out of the box, and from the underside, detach all tubes and the heater wires that connect to the analog PCB.

Schritt 15

Remove the cable from the connector J1 on the analog PCB.

Schritt 16

Carefully pull the tubes from each of the seven transducers on the analog PCB. Take note of the tubing connections for re-assembly.

Schritt 17

Disconnect the J4 connector from the analog PCB.

Schritt 18

Remove the four screws and washers that hold the analog PCB to the pneumatic box assembly.

Schritt 19

Hold tubing aside and remove analog PCB from the box assembly.

Schritt 20

Carefully pull the tubes from their connections opposite the solenoid PCB (not directly from the solenoid PCB). Make note of the tubing connections for re-assembly.