Introduction
This guide will show you how to replace a faulty Casio A158WA-1 watch circuit board. If your watch is not turning on, there is a possibility that the circuit board is damaged and needs to be replaced.
The circuit board allows electricity to flow from the battery (power source) to the LCD screen. If the circuit board is damaged, the watch will not turn on or display the time. A faulty circuit board will most likely have cracks, scratches, or bulges.
Before using this guide, test new batteries on the watch. If the battery is running low, the watch will not display correctly or turn on either.
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Use a pair of tweezers to lift the metal clasps at each corner and remove the battery holder.
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Place the interior of the watch inside of the shell.
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Put the rubber band and the lid back in their original position.
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