DM42 works with USB but not battery

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Joined: Mon Jun 12, 2017 9:55 pm

DM42 works with USB but not battery

Post by dfnr2 » Fri Apr 27, 2018 7:53 pm

I got my DM42 in February, and it worked great. It's been in a box (off, of course) for March and April while I moved my office, and I just checked it out again. The calculator would not power up without USB attached. With USB, it operated just fine.

I removed the battery, which read near 0V. I placed a new good CR2032, which read 3.1V, but still no activity when I press ON. I tried resetting the calc via the reset button, but nothing. Again, the calc works when USB is attached.

Has anyone seen this before? Is there a simple fix?



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