55
12-5.SENSOR DETECTION CIRCUIT
Function
Detects signals from the sensor and controls
the current system.
Description
- The water level sensor is connected to pin 8
of CN6.
- The frequency of the level sensor changes
accordingtothewateramountinthetub.
- Then, the frequency is input to MICOM pin
48 for detecting the water amount.
- The DHSEH sensor is connected to CN9 ;
- The resistance of the temp. sensor changes
according to the ambient temperature. The
changed resistance is applied to R56 and
R57.
- The voltage applied to R56 and R57 is
decided according the temp. MICOM stores
the value.
- When voltage is applied to MICOM pins 23,
MICOM compares it to the pre-
defined one before detecting the current
temp.
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