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The vfd display GU140x32F-7703A is general display type GU140x32f-7000.

Specs GU140x32F-7000.pdf specs

Manual GU140x32f-7000.pdf

Arduino Libs from Noritake: Arduino_Noritake_VFD_GU7000.zip

Arduino forum example with SoftwareSerial.h https://forum.arduino.cc/t/noritake-itron-gu-7xxx-vfd/193138

Another Arduino forum: https://forum.arduino.cc/t/noritake-vfd-troubles/306831

Wayback link http://www.noritake-elec.com/arduino-code-library-quick-start-guide.php