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Emax

Index last updated: 2026-04-28 23:23 UTC

Message

LCD contrast

2002-03-01 by Rob EmuArc

Hi,
Some information for Emax/Emax II users replacing the LCD. The viewing
angle/contrast (it's the same thing in these LCD's) may well need adjusting
after you put in a new LCD. On the Emax II the setting is controlled via
software and stored permanently in an EEPROM, check out MASTER 9 SPECIAL 3
RECALIBRATE 9 = LCD CONTRAST. In the later Emax I models there is a small
preset pot on the digital board behind the cable to the control panel, you
have to adjust the preset pot with your finger whilst viewing the LCD -
tricky and watch out for the power supply voltages in an opened casing. In
early Emax I models the viewing angle is set by two precision resistors in
the same place, if you have problems with the viewing angle you'll need to
replace these with a preset pot.

Hope this helps
Rob

  Thanks! I'll figure out the contrast thing and give it another go on my
EMAX I.


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