MEMBRANE SWITCH
FIG. 12-1 MEMBRANE SWITCH
Location:
The Membrane Switch is located on the front face plate.
Test Procedures:
There are two methods for testing the membrane switch. The easiest method is to use the built in test mode. Refer to the Programing Section for Service Tools/Test Switches. If for some reason you can't get into the program modes, or brewer won't power up, you can test it with an ohmmeter or continuity tester. Refer to the schematic to trace the appropriate pins.
NOTE: Pin 22 is the static shield & will not provide a reading to the other pins.There are two commons in this circuit, pins 9 & 10.
Disconnect brewer from power source before disconnecting ribbon cable from control board.
Removal and Replacement:
1.Disconnect the ribbon cable from the
2.Gently peel the membrane switch from the front face plate assembly.
4Remove any adhesive that remains on the front face plate.
5.Remove the adhesive backing from the new mem- brane switch. Insert the ribbon cable through the slot in the front face plate and apply the membrane switch to the front face plate.
6.Connect the ribbon cable to the
Helpful
Hint
Wrap a thin paper clip around each meter lead and extend past the tip by ¼" - ½". You may need to sand off the clear coating on some clips!
FIG. 12-2 MEMBRANE SWITCH CONTINUITY
12 | 42461 0911809 |
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