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image_engineering_decoder_dvd-283 [2018/04/19 21:08]
telmnstr created
image_engineering_decoder_dvd-283 [2018/10/19 22:01]
telmnstr
Line 1: Line 1:
 ====== Image Engineering Digital Video Decoder DVD-283 ====== ====== Image Engineering Digital Video Decoder DVD-283 ======
  
 +Information here is based on research and logical guesses.
 +
 +- This unit decodes digital data modulated in a video signal to DACs that drive laser projectors.
 +
 +- This unit doesn'​t appear to have a CPU. The incoming data seems to clock the hardware and the data to the DACs.
 +
 +- The unit supports two scan heads, A and B. When both are active it appears to cut the scan rate in half.
 +
 +- The unit has 4 digital outputs in addition to X/Y/R/G/B, B1 thru B3 and a SH(utter?)
 +
 +- The DACs for R G B channels are 8 bit DACs, but two of the data pins are tied to ground
 +
 +- The DACs for X and Y appear to be 12 bit
 +
 +Ethan has done some work drawing out a schematic for the DAC side to discover where to pick up the clock and serial data after it's pulled from the video signal with the idea of building a microcontroller program to take that data and push it to a computer with no loss.
 +
 +
 +{{ :​ie_dvd_283_decoder1.jpg?​400 |}}
 +
 +{{ :​ie_dvd_283_decoder2.jpg?​400 |}}
 +
 +{{ :​ie_dvd_283_decoder3.jpg?​400 |}}
  
image_engineering_decoder_dvd-283.txt ยท Last modified: 2023/11/14 21:52 by telmnstr