the display is a CU20025ECPB-U1J VFD which is LCD compatible
You really ought to qualify this for the sake of those who read this thread in the future. As we established toward the end of another thread (4 bit LCD library and Hitachi HD44780 compatible display - #18 by floresta - Displays - Arduino Forum) the display appears to use the same instruction set as the HD44780 type LCDs but some timing differences seem to render it partially incompatible.
Don