identifying connections for complex circuits

Discussion in 'General Electronics Chat' started by jr102893, Jan 18, 2011.

  1. jr102893

    Thread Starter New Member

    Jan 18, 2011
    I recently retrieved a small optical scanner sensor from an old color scanner (HP Hewlett Packard ScanJet 6100c) the sensor bar is about 2 inches long and about 1/4 in wide with two sets of 11 pins on the back. It is already soldered into a small flexible circuit board. My goal is to integrate it into a project of mine but first i need to figure out how to power and retrieve information from it. Can anyone tell me how this could be done? i know basic circuit making but nothing about using complex optical sensors.
  2. beenthere

    Retired Moderator

    Apr 20, 2004
  3. BillB3857

    AAC Fanatic!

    Feb 28, 2009
    There should be a part number on it, somewhere (possibly on the back side between the pins). Most photo arrays use an internal bucket brigade shift register to send the information from each pixel out as an analog voltage representing the degree of light or dark. That requires a clock (possibly in differential mode) and a start pulse. The frequency of the start pulse will equate to the f stops on a camera. The more frequently the start pulses occur, the shorter the exposure time.