Adf Pba - Samsung CLX-8640 series Service Manual

2.10.3. ADF PBA

ADF PBA controls the DADF driving. It uses RENESAS's uPD70F3824(48MHz Main Clock, 256KB Flash memory,
24KB RAM) and interfaces with MAIN PBA through UART communication. It has two Motor Driver IC's for step motor
driving and controls one clutch, ten sensors.
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Information
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Part Code : JC92-02509A
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PBA Name : PBA-ADF
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Connection
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PAPER DET1,2 / FEED,PICKUP ROLLER DET/ FEED DET SENSOR
EXIT SENSOR
COVER OPEN SENSOR / FAN I/F
PAPER LENGTH SENSOR
PAPER REGI SENSOR
PICKUP,FEED MOTOR / CLUTCH
SCAN I/F PBA
SCAN READ1,2 SENSOR
2. Product specifications and Description
2-65