B
bitrex
Guest
Replaced the LCD and backlight assembly in my old Emu ESI-4000 sampler:
<http://www.vintagesynth.com/emu/esi4000.php>
Which after 25 years even the LED back lighting was starting to get
annoyingly dim.
Replaced it with one of these white-on-black units which works fine
and looks pretty good:
<https://www.buydisplay.com/arduino-black-lcd-20x4-i2c-code-character-module-display-high-contrast>
Except that the software-adjustable contrast range, which was probably
optimal for a black-on-yellow display, can\'t bring the CV up enough to
avoid some \"blockies\" shining through. I\'m wondering if there\'s a quick
hack to get some more range. Or maybe it would be better to put a
resistor in line with the backlight supply to reduce bleed-thru.
The \"Turbo\" board on these adds some of the nicest digital filters there
were in a hardware sampler of the era:
<https://www.youtube.com/watch?v=zEg60WzYco4>
<http://www.vintagesynth.com/emu/esi4000.php>
Which after 25 years even the LED back lighting was starting to get
annoyingly dim.
Replaced it with one of these white-on-black units which works fine
and looks pretty good:
<https://www.buydisplay.com/arduino-black-lcd-20x4-i2c-code-character-module-display-high-contrast>
Except that the software-adjustable contrast range, which was probably
optimal for a black-on-yellow display, can\'t bring the CV up enough to
avoid some \"blockies\" shining through. I\'m wondering if there\'s a quick
hack to get some more range. Or maybe it would be better to put a
resistor in line with the backlight supply to reduce bleed-thru.
The \"Turbo\" board on these adds some of the nicest digital filters there
were in a hardware sampler of the era:
<https://www.youtube.com/watch?v=zEg60WzYco4>