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KX-FL513RU
7.6.
CIS CONTROL SECTION
The scanning block of this device consists of a control circuit and a contact image sensor made up of a celfoc lens array, an LED,
a light guide, and photoelectric conversion elements.
When an original document is inserted and the start button pressed, pin 15 of IC605 goes to a high level and the transistor Q618
turns on.This applies voltage to the LED to light it. The contact image sensor is driven by each of the FTG-F1 signals output from
IC606, and the original image illuminated by the LED undergoes photoelectric conversion to output an analog image signal (SIG).
The analog image signal is input to the system ASIC on AIN1 (pin 3 of IC606) and converted into 8-bit data by the A/D converter
inside IC606. Then this signal undergoes digital processing in order to obtain a high-quality image.
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Troubleshooting
