634 series backlight


New member
Have installed prox. 20 634 LCD's type SKD204-634 V2.2 and the backlight has failed on all but one panel. I recently installed a new LCD and the problem is definitely the backlight. How shall I procede. I also noticed on the new LCD that the backlight LED series resistor is a different value.?
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CF Tech

Please write support(at)crystalfontz(dot)com (edit to "@" and ".") and they will open a ticket to resolve the issue.
USB LCD Displays - Graphic and Character LCDs with a Keypad