Question about Tech Solution TS-900 Calculator
I haven't used this in some time, so I replaced the battery and I cannot get the on/off button to work. It will only turn on when I press the AC key. When I do, no numbers will register on the display. It just stays as 0. What is not right here?
Make sure there is not a key stuck in the depressed state. If so try to pull it back up and you should be set. If the machine had a liquid spill this could cause that type of error too. In which case the machine is junk.
Posted on Jun 16, 2007
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Posted on Jan 02, 2017
Tips for a great answer:
There is a long life lithium battery installed in this clock radio when you buy it.
This battery can maintain the time and alarm settings for 3 to 5 years, or even
longer, so there is no need to pay for a new 9-volt battery every 6 months, as
is recommended in other clock radios with normal battery back up.
But if this lithium battery has gone down [ in terms of voltage]; the display 'L" will be there. It means that, it is time to replace this backup battery. It will be of disc type, usually used as bios setting storage, used in computers. OK.
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