Low voltage on left channel

[Misery9]

Hello fellow Crack-addicts!
I "finished" my Crack 2 weeks or so ago, and have been using ever since. However there is this problem with the left channel, the voltages are a bit low, and assuming hence the problem with sound in that channel. That's beside the point though, the voltages that sticks out are:

5:  52V (supposed to be 75-90V)
A1: 52V (90V)
B4: 52V (90V)

All the other voltages are within error margin.

The resistances are mostly correct, except terminals 6 and 10 they have 2.49~2.5 Ohms (2.4 in manual) not sure if this may be a problem or not, might just even be the meter I have.

And the LED between B3 and the center connection is not lighting up, assuming it should as the other one does.

Have done resoldering/reflowing on all terminals, but who knows might still need better connection on some terminals.

So basically I'm wondering if anyone have experienced this before and know of some issue or tip that could help me out.

In the right channel the sound is great, left however is a bit lower volume and "fluttering" at higher volumes, especially in the lower frequencies. And even though this problem the sound is still amazing! Can't wait to get my Speedball installed aswell

Any tips are most welcome!

/Marcus

 

[Paul Birkeland]

What voltage do you have on A2 and A3?

 

[Misery9]

Hello, the voltages for A2: -126mV and A3: 0V

 

[Paul Birkeland]

How about A8?

 

[Misery9]

A8 is 1,543V

 

[Paul Birkeland]

Is A3 touching A4?  The low voltage at 5 is being caused by having 0V at A8.  A lot of folks would run out and start replacing LED's, but when the LED's fail, they go open, which will give you higher voltage than expected at both A8 and terminal 5.  In your case, you somehow have A3 grounded, which is throwing things off.

 

[Misery9]

Nope, no touching any other terminal except the center one.

 

[Strikkflypilot]

Is Your A6 wire just resting on the terminal A6?

 

[Misery9]

No, it's soldered

 

[Misery9]

So finally, I sat down any tried fixing this issue once and for all. And alas got it fixed by taking the small tube out of the socket for resoldering the center pin & A3. At first after putting the tube back in the socket for voltage measuring the A3-Center LED did not light up and still low voltage, but after I put some pressure on A3 pin and it lit up and the voltages were as they are supposed to on terminals; 5, B4, A1 and A3.

So what I am guessing what I did wrong from the start was putting the tube in way to far and hard.

Guess it's time to install the speedball "soon"

Thanks for the help everyone who answered