Laney TT50H No Outout

[g1]

Check resistance from red arrow to R34/R44 junction.
After that we will need to either remove R44 and re-use it later, or make a trace cut. Whichever you prefer.

[ca7922303]

Check resistance from red arrow to R34/R44 junction.
After that we will need to either remove R44 and re-use it later, or make a trace cut. Whichever you prefer.

Red arrow to R34/R44 junction(4.7k ohms).

[g1]

Red arrow to R34/R44 junction(4.7k ohms).

Remove R44 and repeat measurement.

[ca7922303]

Remove R44 and repeat measurement.

Should this connection be reading (94k ohms)? I was previously jumped when working on NFB loop?

[g1]

What is reading 94K ? Between the points mentioned in post # 467, but with R44 removed ? That is what should be.
The jumper shown in your pic above is restoring a cut trace, correct?

[ca7922303]

Red arrow to R34/R44 junction(4.7k ohms).

With R44 removed(1.1m ohms).

[g1]

Is the jumper shown between the probes in post # 470 in place now? Or is that a picture from some other time.

[g1]

With R44 removed(1.1m ohms).

This is what happens when multiple threads are run for the same amp. In the pic below, a trace was cut where I have drawn a yellow line. The jumper between the 2 red arrows was to restore the cut. That jumper needs to be in place, re-install it.
Then repeat the measurement from post # 472. If it now measures around 90K to 100K (instead of 1.1Meg), re-install R44.

After this, try the amp at lower volumes. If it is squealing or the presence control works backwards, you will have to swap the green and blue wires at the lugs marked 'grids'.
At some point you will have to verify that the red OT wire goes to P15 8ohm lug, and brown wire goes to 4 ohm lug P14.

[ca7922303]

This is what happens when multiple threads are run for the same amp. In the pic below, a trace was cut where I have drawn a yellow line. The jumper between the 2 red arrows was to restore the cut. That jumper needs to be in place, re-install it.
Then repeat the measurement from post # 472. If it now measures around 90K to 100K (instead of 1.1Meg), re-install R44.

After this, try the amp at lower volumes. If it is squealing or the presence control works backwards, you will have to swap the green and blue wires at the lugs marked 'grids'.
At some point you will have to verify that the red OT wire goes to P15 8ohm lug, and brown wire goes to 4 ohm lug P14.

Heres a better picture

[g1]

Heres a better picture

Yes, that shows the cut in the trace better. So has that red jumper (where I showed arrows) been in place the whole time for the last few days?

[ca7922303]

Yes, that shows the cut in the trace better. So has that red jumper (where I showed arrows) been in place the whole time for the last few days?

Yes, been in place since other member resigned from this one.

[g1]

Yes, been in place since other member resigned from this one.

Ok. I need to know exactly what you measured in post # 470 that gave you a reading of 94K ohms. Try to reproduce the reading if you can.
Is R44 now in place or not?

[ca7922303]

Ok. I need to know exactly what you measured in post # 470 that gave you a reading of 94K ohms. Try to reproduce the reading if you can.
Is R44 now in place or not?

That was the trace repair reading w/,R44 in place reading (94k ohms). R44 is currently removed as per post 469.

[g1]

That was the trace repair reading w/,R44 in place reading (94k ohms). R44 is currently removed as per post Effect of magnetic field on Half of a Bucker.

There is a forum software problem so you have to put a space after using the # sign. But I can see you were referring to post # 469.

The trace repair is a straight piece of wire, so it can not be 94K ohm. It must be zero ohms. The 94K reading must have been an error if you had one probe at each end of the wire, right? Can you duplicate the 94K reading?

[ca7922303]

There is a forum software problem so you have to put a space after using the # sign. But I can see you were referring to post # 469.

The trace repair is a straight piece of wire, so it can not be 94K ohm. It must be zero ohms. The 94K reading must have been an error if you had one probe at each end of the wire, right? Can you duplicate the 94K reading?

Wire to wire was (0.0 ohms), solder joint to solder joint was (94k ohms).