Installing The Control Pcb Assembly Into The Top Case Assembly - Arjohuntleigh FLOWTRON UNIVERSAL Service Manual

Flowtron Universal Service Manual
29.1.5 Raise the LCD sub-assembly by 15-20mm (so that it is at a similar height to the control
PCB assembly) and support it in this position. This will make it easier to connect the
short LCD cable to the ZIF socket on the control PCB assembly.
29.2 To connect the LCD cable (on the new LCD sub-assembly) to the ZIF socket on the control PCB
assembly, do the following (refer to Figures 52 and 53):
29.2.1 Make sure the locking plate on the ZIF socket is still in the fully open position (fully
extended).
29.2.2 Insert the end of the LCD cable fully into the ZIF socket.
Note: Less than 2mm of the LCD cable can be inserted into the ZIF socket.
Note: Make sure the LCD sub-assembly and control PCB assembly do not move, so
that the LCD cable remains in the ZIF socket.
29.2.3 Using your thumbnails, or a small tool which will not damage the ZIF socket, gently
push the outer edges of the locking plate into the connector body on the ZIF socket,
until the locking plate is in the closed position (fully retracted).
29.2.4 The LCD cable is now secured in the ZIF connector.
29.3 Carefully rotate the LCD sub-assembly onto the control PCB assembly, and put the four locating
lugs in the LCD sub-assembly into the corresponding holes in the control PCB assembly (refer
to Figure 52).
29.4 Hold the LCD sub-assembly in position on the control PCB assembly, and turn the complete
control PCB assembly over so that the LCD sub-assembly is on the underside (refer to
Figure 51).
Note: Make sure the outer face, on the underside of the LCD sub-assembly, is protected from
damage.
29.5 Install the four screws (Fig 51, Item 10) to secure the LCD sub-assembly to the control PCB
assembly.
CAUTION: Do NOT over-tighten the screws or you may damage the LCD sub-assembly.
29.6 Turn the control PCB assembly over and remove the protective plastic film from the front of the
LCD sub-assembly.
29.7 Before completing the installation, check the membrane label on the top case assembly. If it is
damaged, replace it (refer to Chapter 5, Page 37, Section 30).

Installing the Control PCB Assembly into the Top Case Assembly

29.8 Install the complete control PCB assembly (including the LCD sub-assembly) into the top case
assembly, as follows (refer to Chapter 5, Page 29, Section 25):
29.8.1 Make sure the Run button is fitted in the cutout in the top case and the button return
spring is fitted onto the Run button.
29.8.2 Lower the control PCB assembly onto the four pillars in the top case assembly.
29.8.3 Install the four screws to secure the control PCB assembly.
29.8.4 Carefully push the end of the membrane cable into the membrane connector on the
control PCB assembly.
Note: Less than 2mm of the membrane cable can be inserted into the connector.
29.8.5 Install the motor and manifold assembly onto the control PCB assembly.
29.8.6 Install the top case assembly onto the front case assembly.
29.8.7 Install the hoseset assemblies onto the pump.
Issue 2
Sep 2009 SER0009
Pump Repair
Chap 5
Page 35