GssL 20th Anniversary edition

[Gustav]

This is how it’s connected and whit 2k resistor on +
Red to + marking on meter
Black to - marking on meter

You seem to have it hooked up between the tests points for -12 and +12V, so thats a 24V differential.

I will make a revision note of adding a 2 way molex for an LED, but for your purposes, take it The +12VDC testpad in the PSU section, and return it to somewhere where the return current/GND nodes meet. editf course, with the resistor in series.

Gustav

 

[Andado]

You seem to have it hooked up between the tests points for -12 and +12V, so thats a 24V differential.

I will make a revision note of adding a 2 way molex for an LED, but for your purposes, take it The +12VDC testpad in the PSU section, and return it to somewhere where the return current/GND nodes meet.

Gustav

okey hope not the leds are toasted thanks

 

[Andado]

You seem to have it hooked up between the tests points for -12 and +12V, so thats a 24V differential.

I will make a revision note of adding a 2 way molex for an LED, but for your purposes, take it The +12VDC testpad in the PSU section, and return it to somewhere where the return current/GND nodes meet. editf course, with the resistor in series.

Gustav

Still the same so I guess my leds are out… but is it ok to connect like in the pictures?
I will order a new vu meter…

 

[JMan]

Is it simply that you fried your LED by hooking it up across the full +/- voltage? Surely you don't need to replace the entire meter, just the LED itself.

 

[Andado]

Is it simply that you fried your LED by hooking it up across the full +/- voltage? Surely you don't need to replace the entire meter, just the LED itself.

Is it hard to take the meter apart and find suitable leds?

 

[JMan]

I don't know how tricky it is to disassemble this particular meter, but typically the case is just held together by a few screws. As long as you're careful and pay attention to where things go, you should be fine. And even if you destroy it by accident, you're just back to where you started (replacing the meter), right? So nothing to lose.

As far as the LED itself, I can't imagine it's anything more special than an off-the-shelf 3 or 5mm LED. Should cost you pennies and be very easy to find.

 

[Andado]

I don't know how tricky it is to disassemble this particular meter, but typically the case is just held together by a few screws. As long as you're careful and pay attention to where things go, you should be fine. And even if you destroy it by accident, you're just back to where you started (replacing the meter), right? So nothing to lose.

As far as the LED itself, I can't imagine it's anything more special than an off-the-shelf 3 or 5mm LED. Should cost you pennies and be very easy to find.

Thanks man! Yeah you are right. I will try replace leds. And in the meantime I can still continue to finish the rest and calibrate, works whitout fancy leds

 

[Andado]

At least it starting to look like a compressor wiring pushbuttons tomorrow and then calibrate.

 

[Hobbyist]

I dont. Actually Frank is planning to offer a mounting solution. He is currently trying to evaluate it further.

View attachment 145279

This is how i did mine on the (old) GSSL ,in this case ,to save space to close the 1U rack unit with a small blank pcb. I've connected to 2 metal pins on the meter with a small wire to the pcb and made the circuit for the led and the meter to connect with 2 molex sockets. I've cut a small piece of foam and place it between the meter and the pcb to hold place.

I hope this can help.

 

[Andado]

Nothing much happens whit threshold. Any idea?

 

[Gustav]

Nothing much happens whit threshold. Any idea?

This is a really hard starting point regarding information.

First answer "did you power it on", and then "is there any input to the unit" etc.

Give us where youre at, whats working, what you checked, and whats not.

Also, personally, I find video irritating for trouble shooting. Id rather have a written voltage reading - might be that I am just getting old.

First, are all the voltage test points reading correctly? All marked clerly on the board, with reference to "ref", and including the +/-12 volt points for the control circuits.

Second, is your relay switching in, and threshold just doesnt work, but gain does.

Gustav

 

[Andado]

This is a really hard starting point regarding information.

First answer "did you power it on", and then "is there any input to the unit" etc.

Give us where youre at, whats working, what you checked, and whats not.

Gustav

Okey. yes it's on and audio is passing thru. I think it's my cheap pots for threshold/ gain that has poor ground. I did order Omegs but they were wrong size. I thought I could spare me to drill up the holes and buy pots locally... but was wrong I guess... wich pot did you use for those? I used your fpd file and just customised a bit.

 

[Andado]

This is a really hard starting point regarding information.

First answer "did you power it on", and then "is there any input to the unit" etc.

Give us where youre at, whats working, what you checked, and whats not.

Also, personally, I find video irritating for trouble shooting. Id rather have a written voltage reading - might be that I am just getting old.

First, are all the voltage test points reading correctly? All marked clerly on the board, with reference to "ref", and including the +/-12 volt points for the control circuits.

Second, is your relay switching in, and threshold just doesnt work, but gain does.

Gustav

If blend is not engaged it’s sounds like an old vinyl record
I took extra ground to the pot and now its working but noisy as hell

 

[Gustav]

If blend is not engaged it’s sounds like an old vinyl record
I took extra ground to the pot and now its working but noisy as hell

No verification of voltages, and another video?

Gustav

 

[Andado]

No verification of voltages, and another video?

Gustav

my 12v rail gives 11.5v and 15v rail 14.9v

 

[Andado]

And only difference from your Reich cart is those 10uf np nichicon Muse es 35v caps since I couldn’t find any else

 

[Andado]

And right channel is even noisier.
Can pots make such noise?

 

[Gustav]

All that doesnt matter - you have a lot of problems, well cover the basic trouble shooting first - posting stacked "Now I found this, now this", is also generally confusing when we try to trouble shoot, but dont worry, well get there.

I marked the voltage points we need to measure, as well as the refernece to measure them to.

Start by verifying those.

Gustav

 

[Andado]

The neg 12 part I guess I’m wrong can’t measure from ground to that right?
Edit: second video I take ground from the nodes and volume is gaining extremely.

 

[inf0]

@Andado It's gonna be way easier for Gustav to troubleshoot when he has a list of all the voltages written down instead of video!

Sick idea with the 3d panel btw ! Good job