Connecting Toshiba TLX-711A display to LPT portBelow 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.    
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Connecting Toshiba TLX-711A display to LPT portBelow 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.
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Two different circuits for the -7,8V contrast voltageMC34063 
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 |