About audio amplifier boards?

I've brought TDA2030 amp board for stereo system(pictures attached). I can't identify audio input terminals. Experts please help me! 

Picture of About audio amplifier boards?
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iceng2 years ago

Red=positive 12volts DC and Black=negative ground supply power for the amplifier.

Yellow and Black pair each are a pair of speaker wires.

Just before the negative of the 2.2 uF negative there appears to be an input where you could solder a Green-signal wire with a gray wire for ground times two.

A better straifght cook down at the pcb would help trace the inputs.

chrisjlionel (author)  iceng2 years ago

Thanks. That really helps. pin 1 followed by caps + terminal is signal input.

Correct !

chrisjlionel (author)  chrisjlionel2 years ago

**caps -ve right

rickharris2 years ago


shows inputs to be on Pin 1 of the IC. You will need a 20k pot as shown to provide volume control/ballance.

chrisjlionel (author)  rickharris2 years ago

Thanks for helping.

Ask where you bought it, if they can't provide the info hand the junk back and get a refund.

chrisjlionel (author)  Downunder35m2 years ago
That's the problem. No refund for goods imported from china. Clearly stated in the bill.