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13-4. SENSOR CIRCUIT
Description
Receives signals from each electric components and controls the operation.
Operation
- The water level sensor is connected to W/L, W/L-1 of CN6.
- Certain bands of the frquency from the water level sensor is input to IC2, depending on the water level.
- The water level frequency, through IC2, is transformed into a square wave before being input to MICOM 23.
- Door magnetic senser is installed at the top cover to check if the door is open : If the door is closed, 0V is applied to
pins # 14 and 15 on MICOM and 5V to a open door.
13-3
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