New HP48 GX With Ring on Screen

[Jeff_Birt]

Hmmm...I'm not sure what happened to my previous reply. As mentioned above one of the polarizers is going bad. I would guess the rear polarizer which also acts as the reflector. I tried repairing a similar failure on a Casio PB-100 using a 2nd hand polarizing film with white paper as a reflector. It worked but is far form ideal. I did just get in some proper reflective polarizing material to give it another try. Link to video I did covering this repair below.

Edit: I think I hit 'Preview' with my previous reply but then forgot to hit post. Silly me...