GSSL HELP THREAD!!!

[Gustav]

Hello, I've been searching for days now and there is an option paralysis because there are too many diagrams floating about. Some are even diagrams of mistakes.

Can someone please help me with wire diagrams for main board+superside chain with power+bypass(compression) DPDT buttons.

My head hurts

Can you show one of the diagrams you found that show what you want to do. Its better to move forward from something concrete, rather than have to both lay out your exact need, then how to do it.

Gustav

 

[gyraf]

..that would probably be in the scope of the "gssl add-ons" thread..

 

[mooksnook]

Can you show one of the diagrams you found that show what you want to do. Its better to move forward from something concrete, rather than have to both lay out your exact need, then how to do it.

Gustav

Can I use this wiring and skip the turbo?

Do I still connect 15+ 0V 15-?

Can I use this diagram for the buttons below? I'm ok with make-up gain being on all the time.

 

[tactyl]

Hi!
So, i powered again the GSSL with all the IC's in place. No burning, so for the moment all good... Except i don't have any sound coming out. I have a 1mA DC meter connected but not moving, of course
Btw, i made shure to short the two traces between ON-COM and bypass, so the compressor should be on and active as I'm gonna fix it. Also I've short the HP filter as for the moment i just want to make it pass audio.
I'm using VCA THAT2181A and I remembered that when I was compiling the BOM the "%" resistors (marked green in the picture) were not on the list and, of course, not present on the pcb.
Also, upon inspection of the capacitors i saw that on the output section, the 100uf capacitors (marked red in the picture) are bi-polarized (There is a problem using bi-polarized capacitors there? I don't remember ordering it this way but...).
Now, I don't know what to do next, but maybe someone can point me to the right direction.
- I've checked again the +15V, -15V, +12V, -12V, all good
- I should change the bi-polarized capacitors 100uf/25v? Needed or I can use them on?
- looking for "%" marked resistors- if needed for VCA THAT2181A- I've attached the picture
- other ways to make shure that i can finish this project...

Also I'm starting to write a list for checking errors as I'm reading this big thread regarding my situation. Some solutions here made my life easier! Maybe when I'll finish this project i can upload it here as a pdf or as a list so others can benefit also.

Thank you in advance!

 

[mooksnook]

Hi!
So, i powered again the GSSL with all the IC's in place. No burning, so for the moment all good... Except i don't have any sound coming out. I have a 1mA DC meter connected but not moving, of course
Btw, i made shure to short the two traces between ON-COM and bypass, so the compressor should be on and active as I'm gonna fix it. Also I've short the HP filter as for the moment i just want to make it pass audio.
I'm using VCA THAT2181A and I remembered that when I was compiling the BOM the "%" resistors (marked green in the picture) were not on the list and, of course, not present on the pcb.
Also, upon inspection of the capacitors i saw that on the output section, the 100uf capacitors (marked red in the picture) are bi-polarized (There is a problem using bi-polarized capacitors there? I don't remember ordering it this way but...).
Now, I don't know what to do next, but maybe someone can point me to the right direction.
- I've checked again the +15V, -15V, +12V, -12V, all good
- I should change the bi-polarized capacitors 100uf/25v? Needed or I can use them on?
- looking for "%" marked resistors- if needed for VCA THAT2181A- I've attached the picture
- other ways to make shure that i can finish this project...

Also I'm starting to write a list for checking errors as I'm reading this big thread regarding my situation. Some solutions here made my life easier! Maybe when I'll finish this project i can upload it here as a pdf or as a list so others can benefit also.

Thank you in advance!

Hey, on page #431 you can find the needed info for VCA resistors. Just follow the diagram.
Or you can buy THAT 2180 and skip those resistors.

 

[tactyl]

Hey, on page #431 you can find the needed info for VCA resistors. Just follow the diagram.
Or you can buy THAT 2180 and skip those resistors.

Thank you! I'll do that! Actually, I made a list with some mistakes, I just started to check on my pcb.