Originally Posted by R_C
Both LCDs are shot on an AP300DL I bought cheaply on Ebay for parts
As the LCDs are shot, have you tried to remove the actual glass LCD and clean the zebra strips?
gets in and shorts out the contacts, there may also be some corrosion
that will clean up OK.
I have seen 120x32 I2C displays, this may be worth a try as they are not expensive. Obviously they are not likely to fit, but you would prove that they work and that the I2C commands are industry standard.