My guitar Ibanez RG350 dx goes directly to the amplifier .... cable from Send goes to the GT-5 input and output from the GT-5 goes to the Return of Peavey Bandit 112..

And thats my setup

Here's my 2 problems

Harmonizer and Guitar synth..........


I cant made my harmonies sound normaly............
I got no clue how to thirds make sound withot hearing diminished fifth playing above..........................
i don't know the procedure

And on Guitar synth.............It doesnt produce any sound
Where i do wrong


Thanx for your help