Fired up my eevblog bm235 the other day and found the dc screen was missing all the numbers. Batteries are ok. (I changed them just because I know you'll ask. No leakage to report.)
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The volts ac screen looks normal. Cycling through the DC ranges I see blank (auto), blank, -55.03, -550.3, 0L. mV dc appears to work normally, but I don't have a mV reference handy to confirm it's accurate. The rotary switch seems fine mechanically. Again, batteries OK. Innards look clean.
Any suggestions how to trouble shoot?
Much thanks,
Jeff