GSSL HELP THREAD!!!

[mokkinger]

easy, i don´t think that will affect anything during testing... but your turbo board might not work if not connected...

 

[ribazigi]

;D ;D ;D

this is my pictures of wiring power switch

http://my.imageshack.us/v_images.php

http://www.banzaieffects.com/Rack-Enclosure-Palermo-2U-pr-24735.html#tabs

are this ok on the power switch??

 

[mokkinger]

this link does not work...

 

[ribazigi]

Trie this Mark 

By ribazigi at 2009-04-25

By ribazigi at 2009-04-25

tanks for your patience

 

[ribazigi]

hi guys

i made a mistake , solder the dbx 202c before my power test.

and now it's very difficult remove the dbx, what can i check to minimize the risk of damage the dbx?

1. check polarity of componentes?
2. check the resistor

Can i just disconnect the transformer of main board and check the voltage in the wire of transformer,(just to see if the voltage 15AC are correct?

 

[keefaz]

Are you sure the VCAs are soldered correctly, they look like upside down to me

 

[ribazigi]

hi keefaz

yes they are, i think it's the label on top it's wrong, the solder pins are identical on two

 

[museic]

Hey could someone help me out with a part number for some spacers to mount the pcb? I'm not really sure exactly which ones I should use for that. A mouser or digikey # would be great!

Thanks!

 

[keefaz]

hi keefaz

yes they are, i think it's the label on top it's wrong, the solder pins are identical on two

Ok 
Maybe you could unsolder 78L12 & 79L12 (these regulators power the VCAs) if that makes feel you safe for your 202's
I think the power switch connection is wrong on the picture, but you could test which switch terminal to connect with a digital meter (in ohm mode or beeper mode)

 

[stereokillah]

ribazigi;
hello
i ve seen your picture and i just want to give an information the resistor on the side of Vca and the link +15 and -15 must don't touch the gold of vca.
If not you will have problem, i've build gssl with this gold and i stuffed it under the board .

Perhaps could help you

 

[labak]

Hi all!

I'm working on my GSSL and I've got something really strange!

All is done without sound going thru the unit!

When I put the ratio at 2:1, i've got 2.68mA, the meter is going to max and there's the biggest limitation i've ever seen!

When I put the ratio at 4:1, i've got 0.70mA and the meter is staying a half and I have a big compression!

When I put the ratio at 10:1, i've got meter to zero and compression is working nicely!

So is there is one of you who already got this problem, help me, please.

Voltage with ratio on Pin 8 of the TL074 is going form -5.5V to -1.3V and to 0.

Regards

 

[ribazigi]

hi stereokillah

very good tip ...and yes i have one resistor touch on vca 

tanks

 

[ribazigi]

hi guys

are these voltages normal to a 30v transformer, dont they must have 15v each???

By ribazigi at 2009-04-26

 

[okgb]

is it a 30v center tapped xfmr that you have
or a 15 v center tapped [ which divided would give 7 ish v ]
you've doubled checked the wiring according to the
xfmr manufacturer , you have some kind of paperwork or
reference for that xfmr model number right ?

 

[ribazigi]

hi okgb

this is the drawing in the transformer, is possibel that i have made a mistake?

By ribazigi at 2009-04-26

 

[keefaz]

How did you measure those voltages ?
Did you put your meter in AC volt mode and measured between black and red wires and between orange and yellow wires ?
Frankly, I am surprised that your switch works like you have connected it, as seen on the picture, but what do I know 

 

[ribazigi]

hi keefaz

yes i measure like you say

i'm not expert,it's my first project... wish me luke

how did you connect to switch?

 

[keefaz]

May the Force be with you, luke 
I would have connected the switch like this:

 

[ribazigi]

ok keefaz

i will try like you say, and measure again

 

[ribazigi]

keefaz

do not work like you say, and think better the voltage dont change because the switch

tanks anyway