Samsung CLX-8640 series Service Manual page 79

2) APS I/F PBA
This board is supplied with power from SCAN I/F PBA. It detects the original size on platen glass and sends the signal
to main board through the SCAN I/F PBA.
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Information
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Part Code : JC92-02009B
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PBA Name : PBA-APS I/F
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Connection
1
2
3) PLATEN CCDM PBA
The function of this board is to convert the reflected light from an original document to electrical signals. It includes the
CCD, ADC, Logic IC, etc. The CCD converts the reflected light from an original document to three-color analog signals;
red, green, blue. ADC converts each analog signal to digital. And for high speed data transmission, the digital data signal is
converted to LVDS format with serialization.
This board handles all the conversion of an image reflected from the platen glass.
•
Information
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Part Code : JC92-02536A
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PBA Name : PBA-CCDM PLATEN
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Connection
1
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APS SENSOR1,2
SCAN I/F PBA
PBA-SCAN IF
2. Product specifications and Description
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