[mcp6453[_2_]]

On 2/9/2015 10:00 AM, Mike Rivers wrote:
On 2/9/2015 2:43 PM, Scott Dorsey wrote:

From the description I can't even tell what the module is supposed to do.
Is this a speaker-level-to-line-level interface?

You made me look. From the connection diagram, I'd guess it was (some sort of) line level in, with an output to drive
(some sort of) a meter with a VU scale. It's powered by 12 V DC. Since there are hardly any other components on the
board but capacitors and a couple of diodes, I'd guess that the IC is a dual op amp.

If one channel works and the other doesn't, that might help troubleshoot it. If neither channel works, buy another one
for sixteen bucks.




It's a TA7318P, from what I can tell. It appears to be an obsolete part. There must be a boat load of them still
available. Newer versions of this circuit are probably using an op amp, as suggested.

I got mine working, so all is well on that front.