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Re: WILL NOT TURN ON
There are generally 2 causes for this symptom.
1. The input connector is usually a 3 terminal device. When the plug is inserted into the device, a spring loaded contact is pushed away from another terminal which effectively disconnects the battery section from the device. This stops any electricity from the plug from being connected to your batteries and causing overload conditions. If this spring loaded terminal has been damaged, when the plug is removed from the device it will not "spring" itself back to its terminal and the battery power will not reach the PC board.
2. The battery case (compartment) has 2 wires going from it (internal to the device) one black and one red. If either of these wires has broken off the battery holder or broken off the PC board within the device, it will not power up.
You can also make sure that all the batteries are inserted in the correct direction. Since the unit works when plugged in, you can cross out anything else having to do with the unit.
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Check the earphone plug-in-hole. Plug it in and out (the earphone) several times. I've seen this happen before on similar equipment, grit gets into it. When you plug in a headphone a switch in the speaker line is opened, if grit accumulates, it cannot close. Good luck!
Hi, my name is John. Welcome to FixYa. Some of these units will not operate with the charger plugged in, check to see if you have all the batteries in the right direction. Thanks for choosing FixYa....John
Check the batteries and the connections inside the scanner for corrosion. If necessary, clean both with a dry cloth, fine wire brush, or steel wool. Check the batteries for continuity and voltage. If they are shorted, "dead," or more than a year old you should replace them. Also check the output of your charger. It's rare for a charger to go out, but it does happen.
It's never a good idea to ship a scanner (or anything else) with the batteries installed, as you never know what the package might experience enroute. About all you can do is replace the rechargeables with fresh NiMH batteries. If they don't take or hold a good charge you need to contact the company that "fixed" the scanner. BillB
I would recomend checking the fuse in the wire or plug you are using, if that is good i would then take a test light and check the power to my leads, most scanners operate on a 12volt source with a small inline fuse, so just check all the voltage and grounds good.