LCD Project: Related Work: CyberMaxx II

Cybermaxx drivers can be found at Andy Macdonald's site (http://www.zardoz.net).

Work with the CyberMaxx II is relevant to virtual reality applications of our LCDs as well as to design.

Its apparent use of an FPGA in some variants, rather than the MN83803AL as listed in a parts manifest (kindly provided by Arthur Zwern of General Reality Corporation), encourages the development of an FPGA of our own to replace the MN83803AK.

As the following photos reveal, there is no MN83803AL I.C. (pin-compatible with the MN83803AK, according to Panasonic, though it has the added functionality to drive a 180,000-pixel display); instead, we can see in the first photo a large QFP integrated circuit with no markings on it, where Daniel Heckenberg removed a large heat sink. We think this I.C. is some kind of field-programmable gate array (FPGA) configured to emulate the relevant functions of the MN83803AK for driving the 180-kpixel LCD.

Photo 1 of CyberMaxx II video P.C. board

Photo 2 of CyberMaxx II video P.C. board

Arthur Zwern of the General Reality company has kindly provided me with partial schematics and a parts list for the Cybermaxx 180k head-mounted device, including diagrams of some of the position sensors. Unfortunately, schematics of the video section could not be found.

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