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Connecting Toshiba TLX-711A display to LPT port

Below is the schematic that I used to connect my Toshiba TLX-711A display to the computer. For the negative -7,8V contrast voltage I made a circuit based on MAX764.

Displays PCB from behind.







Two different circuits for the -7,8V contrast voltage

MC34063

MAX764

Data sheet for MAX764 is here.


Marty has posted another way to make the voltages: http://www.skippari.net/phpBB2/viewtopic.php?t=19