Which donor LCD display for HP48gx ?

[Hiwi]

Hi,
i have sent a PN with some instructions to open the calc 'chemical' without force and replace the display.
Here is my HP48SX (made in USA) with a 49G black display.
The old display had a very poor contrast and the calc had the common keyboard issue.
My newer HP48G has a blue display but with good contrast, so i decided not to change the display and repair only the keyboard problem and upgraded to 768K (5 port) RAM.

5 ports are enough, believe me.

Happy programming
Ralf