i built this circuit and its not working, help? Answered
recently, i found a audio amplifier chip, the TDA7496 to be exact.
when i found its datasheet, it included a circuit for a audio amplifier.
i built that circuit, and it made my music quieter, not louder.
the sound level didnt change even when my input device was at max volume. (my laptop)
i tried the volume adjuster and it did work, but only to lower the volume, not raise it.
i followed the circuit, the 'mute' and 'standby' switches were hardwired to the 5v points, like the circuit shows the switches being at default (off)
the SGND seemed to be connected to PW_GND (tested via multimeter) internally, so i added a wire to ground externally to be careful.
im using a 15v power supply, and a 5v regulator.
i assumed all the down pointing white arrows were all to be connected.
capacitors 2, 3, 5, 6 and 8 were not put in.
i used polarized capacitors for 9 and 7.
all of the capacitors are rated for 16v.
i tried disconnecting the mute and standby lines, but that didnt change anything..
so ive attached the circuit in question, can someone tell me what might be wrong?
i have also attached the datasheet.