Help understanding Turbo Trem schematic

[ficelles]

I'm trying to debug a minor issue with my Turbo Trem build and am having trouble understanding the schematic (I'm not great with schematics but I can build projects ok)... the question is what does the section top right with Q4, Q5 and Q6 actually do? The LFO still works with all those transistors pulled, but won't work with a J113 in Q4... the other LFO doesn't have an equivalent section. If anyone can explain that would be great...

[Govmnt_Lacky]

I believe that section is used in conjunction with the external Trigger. Depending on the voltage input at the Base of Q6 from the Trigger jack, it can synchronize the LFO to the trigger input.

[ficelles]

That makes sense, thanks. Still can't work out my cross-talk in stereo panning mode but at least I know that section isn't it.

[ficelles]

Can anyone identify the area which does stereo panning? I think it is off MODE rotary switch position 3...

[Govmnt_Lacky]

Can anyone identify the area which does stereo panning? I think it is off MODE rotary switch position 3...

Fairly certain the Mode switching is identical to the real thing. So, Mode rotary at full clockwise should be the Tremolo. Turning the rotary counter clockwise should go to Panner, then Vibe, then finally to Dual Tremolo.

[ficelles]

Thanks, though I was referring to the schematic rather than just the position of the mode switch.

[Govmnt_Lacky]

Thanks, though I was referring to the schematic rather than just the position of the mode switch.

Simple. Put a DMM on Pole A. Put the rotary into Panner mode. Which ever pole has continuity (1-4) is the one to look for.