Hum Pot adjustments [resolved]

[ArtnShit]

1.496Vac LO
.491Vac RO

Using the ground for each respective RCA jacket.

[Paul Birkeland]

OK, how about the AC voltage for the upper and lower lugs on the volume pot that are closest to the rear of the chassis?

[ArtnShit]

Upper 1.502 V ac
lower .381 V ac

[Paul Birkeland]

Can I see some photos of the build on the weak channel? The numbers you're posting indicate a weak channel, but not completely dead.

[ArtnShit]

I think this is the right channel, right?

[Paul Birkeland]

You need to add more solder and a lot more heat to the joints in this kit.  The sound likely isn't making it out from solder joint issues.

[ArtnShit]

Makes sense, this was the first one I built. Should I just go over all of em adding more?

[Paul Birkeland]

Yes, don't forget to add more heat too so the solder flows out properly. 

[ArtnShit]

I have gone over every joint on the right side around the 300b socket and I am still not getting a full signal. Any suggestions for areas to pay more attention to?

[Paul Birkeland]

You can do another 60Hz AC signal measurement and look for the AC voltage on the rear lead of each 10uF cap (not the forward lead that wires to each 4 pin socket).

[ArtnShit]

L 1.481v ac
R .332v ac

Attaching the pics of resoldered joints. Thanks!

[Paul Birkeland]

I suspect that the blue capacitor on the weaker channel is loose on one end (or both).

[ArtnShit]

I have re-soldered all of the joints and I am pretty sure nothing is loose at this point. Still getting a much weaker signal from that channel, its pretty hard to pick up any AC signal from the outbound lead of the 10uf Cap. I am attaching resoldered pics just in case I am missing anything else. Other than that are there any other troubleshooting measures I should be doing?

Thanks!

[Paul Birkeland]

You have the output shorted with this wiring error.

[ArtnShit]

:O wow, its fully playing thru both speakers now. Thank you so much for walking me through this really long troubleshooting situation. It's silly it was a miswiring, but I am extremely grateful for your help and responsiveness.

One last question I have about the BeePre now that it is in the system - There is a small buzz that happens when I turn the volume past 75% or so. The Kaiju plugged in by itself was nearly silent. Is this the gain of the BeePre? I have the Bee2Quiet attenuator upgrade on the way now, would that remove some of that?

Thank you again, so much!