Arjohuntleigh FLOWTRON UNIVERSAL, Service Manual

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Pump Repair Flowtron Universal Service Manual
Chap 5 Issue 2
Page 34 SER0009 Sep 2009
Figure 53 - ZIF (Zero Insertion Force) Socket
28.5 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 top.
28.6 Carefully lift the LCD sub-assembly off the control PCB assembly, and rotate it in the direction of
the LCD cable, until it is lying on a flat surface adjacent to the edge of the control PCB assembly
(refer to Figure 52).
CAUTION: Do NOT attempt to pull the LCD cable out of the connector on the control
PCB assembly, or you could damage the cable and the connector. This is a
ZIF (zero insertion force) connector, which must be “unlocked” before the
cable can be removed.
28.7 To remove the LCD cable from the ZIF socket on the control PCB assembly, do the following
(refer to Figures 52 and 53):
28.7.1 Using your thumbnails, or a small tool which will not damage the ZIF socket, gently
push the outer edges of the locking plate away from the connector body on the ZIF
socket, until the locking plate is in the fully open position (fully extended). The LCD
cable is now released.
Note: The total travel of the locking plate is less than 2mm.
28.7.2 Remove the LCD cable from the ZIF connector, and remove the LCD sub-assembly.
29 Installing the LCD Sub-Assembly
Installing the LCD Sub-Assembly onto the Control PCB Assembly
29.1 Position the new LCD sub-assembly (Fig 52, Item 20) by the side of the control PCB assembly,
as follows:
29.1.1 Put both assemblies on a flat surface (refer to Figure 52):
29.1.2 The ZIF socket should be on the top side of the control PCB assembly.
29.1.3 The four locating lugs should be on the top side of the LCD sub-assembly.
Note: Make sure the outer face, on the underside of the LCD sub-assembly, is protected from
damage.
29.1.4 Ensure the orientation of both assemblies is as shown in Figure 52. The LCD cable
should be adjacent and “pointing” towards the ZIF socket.
Locking Plate Closed and
LCD Cable Secured
Locking Plate Open and
LCD Cable Released
LCD Cable
Connector
Body
Locking
Plate
Total Travel =
less than 2mm