Differences

This shows you the differences between two versions of the page.

--- image_engineering_decoder_dvd-283 [2018/04/19 21:08]
telmnstr created
+++ image_engineering_decoder_dvd-283 [2023/11/14 21:52] (current)
telmnstr
@@ Line 1: / Line 1: @@
 ====== 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
+Work is underway to build a direct to computer interface to capture the data from this system.
+The unit in this picture was modified to have two DB-25 connectors for connection to ILDA standard projectors. Originally the connections were made through 1/8" connections on the front.
+{{ :ie_dvd_283_decoder1.jpg?800 |}}
+{{ :ie_dvd_283_decoder2.jpg?800 |}}
+{{ :ie_dvd_283_decoder3.jpg?800 |}}

LaserShowWiki.757.org