Reply To: Help With Audio Upgrade Board

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#19788
Morpheus_79
Participant

A multimeter won’t get you very far. You can only use it to measure if the upgrade board gets all the correct input voltages (3.3V & 5V) from the AP7361C voltage regulator and supplies them to its ICs… and you can use it to check for continuity problems because of broken traces.
Some multimeters may have the ability to measure the capacitance of capacitors – but it won’t work 100% error free, while the capacitor is a soldered-in part of a circuit.

I may be wrong, but i would say: you need an oscilloscope to see if your audio upgrade board outputs a signal…