Question about Radio Shack Pro-97 Handheld Scanner
WILL ONLY TURN ON WHEN PLUGGED IN TO POWER, THE BATTERYS CHECK GOOD.
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.
Posted on Mar 10, 2008
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Posted on Jan 02, 2017
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