Reply to "FEC 100 LCD Screen weak"

Yes, the old display has to be unsoldered and gently pried off. Then the new display needs to be soldered in place. Lots of care is needed to not damage the circuit board when doing this. If you are not experienced in removing a part from a printed circuit and soldering a new one in, it would be worth paying an experienced electronics tech to do this for you. The main circuit board for the IQ-4 is no longer available so if you damage that board, the only option is to upgrade to the IQ-5 which is a very nice, but very expensive upgrade.

I have been doing this type of circuit board work for over 50 years and it was still a difficult procedure. Maybe it was the fear of an $1800 mistake that made it more stressful than usual, but the replacement display works and has restored it to like new brightness. I also replaced the membrane that goes over the buttons and the display as the plastic had yellowed and even with the new display it was difficult to read until I replaced it.

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