Panasonic KX-MB1520FX7 Service Manual page 34

KX-MB1520FX7/KX-MB1520FX8/KX-MB1520FXW/KX-MB1530FX7/KX-MB1530FXW
(KX-MB1530)
When an original document is inserted and the start button pressed, pin A3 of IC300 goes to a low level and the transistor Q518
turns on.
This applies voltage to the CIS. The CIS is driven by each of the signals (CCDSH, CCDCLK, Resolution) output from IC300.
The original image illuminated by the LED to output an analog image signal.
The analog image signal is input to the AFE on VINP(20pin of IC503) and converted into 16-bit data by the A/D converter inside
IC503. Then this signal undergoes digital processing in order to obtain a high-quality image.
Resolution
The CIS can change the resolution, 300 dpi mode or 600 dpi mode. If RESOLUTION signal is High level, CIS operates 600 dpi
mode.
The other case is 300 dpi mode.
Operation CIS Resolution
300dpi 600dpi
COPY Photo/Text, Text Photo
PC SCAN ~300 X 300 400 X 400~
FAX (KX-MB1520 - ALL
ONLY)
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