Display Module; Door Switches - Fisher & Paykel 790 Active Smart Service Manual

6.1.3

Display Module

This module contains the user interface, and also the circuitry to drive the lamp. It is controlled via a 5-wire
communications interface from the power/control module.
The user interface of push button switches and Light Emitting Diode (L.E.D.) display on the display module
printed circuit board is used to input and display the required set temperatures for the refrigerator
compartments.
The user interface is positioned at the rear of the provision compartment (PC). The interface automatically
displays the current temperature setting for the PC compartment. This is shown as a series of L.E.D. lights
on a thermometer symbol. To adjust the temperature of the PC, simply press the temperature up or down
buttons to the appropriate setting.
Press the mode button on the left-hand side of the interface to select the FC compartment. The indicator
light will flash for 8 seconds to show a new compartment has been selected. Press the up or down buttons
to adjust the temperature as necessary.
Further presses of the mode button will toggle between the PC and FC compartments.
6.1.4

Door Switches

"Reed" switches are used to detect the opening and closing of the doors. Two small magnets that are built
into the PC and FC doors activate them. The reed switches are encapsulated within a plastic housing, which
is clipped under the plastic covers on the base and cross rails.
STAGE 4.2 POWER/CONTROL MODULE
Diagram 6.1.2
DISPLAY MODULE (Stage 4.2)
Diagram 6.1.3
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