FX loop rotary control basics

[enuenu]

The Assign rotary control on the back panel for the FX loop has 6 settings (going off the manual as amp is in workshop);

Loop On
Channel 1
Channel 2
Channel 3
FTSW
Loop Bypass

Here is what the manual says about this control;
An ASSIGN rotary control that allows you to have any combination of LOOP ON status or completely remove it from the signal path altogether.

I'm afraid I need a little more to understand what this selector does.

Loop Bypass. I think this setting means the loop is not used at all and cannot be switched on via the footswitch.
Loop On. I think this setting means the loop is always on and cannot be switched off via the footswitch.
FTSW. Does this mean I can switch between Loop Bypass and Loop On using the footswitch?
Channel 1, Channel 2 & Channel 3. I don't understand what these settings mean.

Any help appreciated. I recently used my loop for the first time and the next time I used the amp it sounded like total crap. Something went wrong, not sure if using the loop had anything to do with it (I've had problems with this amp since I bought it). It is now with a tech, again. I really don't want to sell this amp but it is pushing the friendship way too far. Plus selling something with a problem doesn't sit well with me. If only the thing would break down totally once and for all, revealing the ghost in the machine!

 

[domct203]

When set to "Channel 1", the loop will switch on when you select Channel 1, and switch off when Channel 2 or 3 is selected. When set to "Channel 2", the loop will switch on when Channel 2 is selected, and switch off when Channel 1 or 3 is selected.

Etc.

Dom

 

[enuenu]

Thanks Dom

 

[Dino.]

My DR has a parallel effects loop.
It sounds best (IMO) with the mix knobs turned all the way up.
Does this setting still allowing a dry signal to pass?

 

[domct203]

My DR has a parallel effects loop.
It sounds best (IMO) with the mix knobs turned all the way up.
Does this setting still allowing a dry signal to pass?

Yes, a small amount of dry signal will still be present. I believe the mix knob is labeled 90% when at max.

Dom