633 usb no display


New member
have the 633 usb - connected usb & power cable - still no display.

Using this on a Nitix Server OS (Net Integration Technologies) - has drivers in OS already...

What could be wrong or needed?

The unit has no back light that comes on or anything...
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CF Tech

If the CFA-633 is in its default configuration, applying power to the "floppy" power connector should wake it up.

Please write support{at)crystalfontz(dot]com (edit to '@' & '.') and we will try to resolve the problem in a ticket.
USB LCD Displays - Graphic and Character LCDs with a Keypad