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5.11.2. SENSOR DETECTION
When CN1(8) (OPSEL) is "L", the detection of the document sensor and read start position
sensor are available.
5.11.3. LCD CONTROL
"KTXD", "KSCLK", "KLATCH" and "KSTART" are sent as D0~D3 to control the LCD.
5.12. POWER SUPPLY BOARD SECTION
This power supply board uses the switching regulator method.
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