Explanation of PCBs (Processor section)
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6. Electrical parts
66600
66600
SM I/O PCB (J391191, J391378) [SM]
NOTE
• SM I/O PCB J390330 does not comply with the RoHS directive.
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! Function
• Supplies the power to each sensor of the SM replenishment section and relays the input signal.
• Drives each replenisher pump and water supply pump of the SM replenishment section and relays the output signal.
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! Reference
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! Adjustments and precautions for PCB replacement
NOTE
• Adjustment methods after replacement are different between SM I/O PCBs J391191, J390330 and J391378.
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! Unused connector
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! Component parts table
Layout diagram Symptom due to the poor connection of
wiring
Symptoms of fuse blowout
☞63200 - -
Explanation Reference
• Adjust the sensitivity of the replenishment solution sensor, after replacing the PCB. ☞27830
Connector No. Purpose Remarks
P606 Unused
LED No. Purpose Status
LED1 CD−A replenishment solution presence check ON when there is replenishment solution.
Unused
G070013
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