Hi! I'm from Italy and I'm new to Circuit Bending.
I'm modifying a little thing that plays 8 different noises from GBC and on that thing everything is going right, but while I was modifying it I opened another toy to test it, and while touching around with the probes it crashed. Now it turns on but it outputs its music at a very low volume, you have to stick you ear to the speaker to ear it.
Yesterday evening I opened another device, the kind of device that beeps when you enter in a shop, I don't know its name in English, and while I was testing connections it crashed and now it behaves the same way!
Can you suggest me some solution or, at least, the errors that I could have made so the next time I will pay more attention?
Thank you in advance!
You may have damaged the audio amplifier. Trace out the circuit from the loudspeaker back, and see what components there are.
Do I have to trace both the positive and negative wires going to the speaker? And, the positive wire it's not at the and of a track, it's in the middle, do I have to trace in both directions?
Thanks for the help
Yup, the whole thing. You may find that it disappears into some anonymous black blob, in which case you're stuffed.
One wire goes to a track with only two solder points on it and it connects directly to the Power/Low volume/High volume switch, the other connects to the switch, to the positive leg of an electrolytic capacitor and to 4 resistors' legs.
What can I do to check these components?
Okay, the power/low volume/high volume switch sounds interesting. Trace the volume pins back from there.
Don't worry about testing the resistors or capacitors, it probably won't be them.