Backlight not working, advice and/or schematics would be wonderfulI've got 3 Motorolla MC9090 Barcode Scanners that all are not lighting up. Their displays aren't dead, just no backlight....
回答“Need to replace keyboard..”I attempted this one myself with one of my co workers (I work in a repair shop) and we found that at around 650º-700º Fahrenheit with a heat gun is when the circular glue holds in the black plastic shielding give out. So, use a normal desktop sized P2 flat blade and wedge it in the side of where a circular glue hold has popped and it should be able to walk down the side of the shielding with the aid of a secondary screw driver, which will cut the glue as you go if you're applying heat. Then when you get down to the keyboard, just use a dremel tool to grind the posts down, because f**k scraping each individual one; you'd be there for half an hour. Hope my research helps. Cheers, The Mac Whisperer