I cleaned up the schematic a little; it didn’t turn out as good as I had hoped it would, but it’s better than before. I have also included some labels to ease understanding. SInce it can be improved, I will almost certainly create a better schematic before releasing my page on the LCD Tester.
Disclamer: This is still only a rough schematic, so proceed at your own risk. I am in no way responsible if something bad happens as a result of building this circuit. Infact, there is a great probablility that some of the values are wrong.
Errata:
- R12 should be 5k ohms.
- SW10 is all jacked up. Basically SW10 should ground either pin 1 or 3 of the 7404. (I think)
