42S Troubleshooting

[tgwell2]

I've got a 42S that randomly showed a low battery today when I turned it on. It then immediately reset so I tossed the batteries and put new ones in.

I then did a self test and everything passed. I went about using the calculator and in a hurry hit a couple buttons at the same time... the low battery indicator came on again. So, I started pushing buttons and noticed that if I hit all three buttons on the middle or top row of digits (4/5/6 or 7/8/9) it'll flash low battery. If I hold them for any period other than briefly the calculator will reset. It does not seem to do it (at least as severely) if I hold 1/2/3.

I've searched to try and see if this is a common failure but come up empty... I've also cleaned the battery contacts and tried a third set of batteries/confirmed they work in another pioneer.

Was just wondering if anyone had seen something like this before. I may put the calculator on a power supply and look at current, but I'm assuming at this point I'm going to have to open it up.

I've only had the calculator for a couple of years, but had zero problems with it... really hoping it's fixable.

Thanks!