Membrane Key Board (Membrane Switch Assembly) - Panasonic NN-K153WF Service Manual

infinite in one direction and several hundred K in the other
direction.

9.7. Membrane key board (Membrane switch assembly)

Check continuity between switch terminals, by tapping an appropriate pad on the key board.
The contacts assignment of the respective pads on the key board is as shown in digital
programmer circuit.
9.8. Variable power controller
- Isolate variable power switch from the circuit by disconnecting 2
leads.
- In order to check if variable power controller is operating normally,
follow the test procedures below.
1. Select any power other than "High" and start the oven.
2. Check continuity between both terminals of the variable power
switch.
3. Variable power controller (timer and variable power switch) is
working property it the ohm meter reads open and 0 ohm within
30 ± 2 seconds interval as shown in table on .
10. MEASUREMENTS AND ADJUSTMENTS
10.1. Adjustment of primary latch switch, secondary latch switch
and short switch.
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