Looking at a Fluke 33X series clamp meter with a display issue, seems some of the segments are swapped or transposed in some way. Occurs on all measurements and otherwise the clamp meter seems operational.
When on AC and DC and Amps the display shows A.A instead of 0.0
- segments D and G are swapped on both digits.
When on Ohms the display shows 0 n instead of 0 L
- segments D and G are swapped and possibly F and C.
I cleaned and swapped the two conductive rubber pads around and upside down several times which I'm fairly sure should have showed different symptoms if a cause. I also cleaned the PCB contacts and display contacts.
I lifted the backlight and cleaned the circuit and IC underneath, around the IC area I got a strange blue dye/ink so I cleaned that until removed. I did this without removing the backlight so couldn't get a good look at where it came from. It may have been a date stamp on the back of the backlight or something as there was a smudge there as well that I cleaned off.
Any ideas?