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Step 12Testing the Circuit
Before the final assembly, it is a good idea to check the circuit. Make sure that the two chips are in and a properly charged battery is installed in the correct orientation. Turn on the Altoids Tin Speaker and hope for the best. You should hear a faint hum from the speaker. Attach a noise-making device. Hopefully, you will hear music.
Troubleshooting? You are on your own.
Troubleshooting? You are on your own.
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