The DC light

[Stuart nemesis]

Hi I’ve got an Eden Nemesis RS 700.
It was going at practice.
Then stopped.
There’s a DC light that is lit up blue and I’m not sure if it’s been on before.
I’m not sure if the blue DC light is good or bad because the manual doesn’t say.

It does say in the manual that if it’s lit, the low voltage power supply is operating.

I can’t even tell if the head is good or if the cab has just gone kaboom.

any help or clues?

 

[el murdoque]

The DC light only tells you that internally, the amp is getting DC power. Which is good.

So the usual applies:
1. Check ALL the cables. ESPECIALLY those you don't need to check because it's impossible they've come loose.
Are they sitting tight? Do they look okay? Are they passing a signal?

2. When all the cables are in place and you're sure each one works, remove everything that makes the setup more complicated than strictly necessary. One power cable straight from the wall to the head. One instrument cable straight from the bass to the head. One speaker cable straight from the head to the cabinet.
No pedalboards, external preamps, FX Loops, Speaker selectors and whatnot.

When there's still no sound and all the cables are in order, then either
a) nothing is going into the head (Bass or instrument cable are to blame)
b) nothing is coming out of the head (probably an expensive problem)
or
c) a signal comes from the head, but the cab won't do it's thing. (cab or speaker cable to blame)

 

[Stuart nemesis]

The DC light only tells you that internally, the amp is getting DC power. Which is good.

So the usual applies:
1. Check ALL the cables. ESPECIALLY those you don't need to check because it's impossible they've come loose.
Are they sitting tight? Do they look okay? Are they passing a signal?

2. When all the cables are in place and you're sure each one works, remove everything that makes the setup more complicated than strictly necessary. One power cable straight from the wall to the head. One instrument cable straight from the bass to the head. One speaker cable straight from the head to the cabinet.
No pedalboards, external preamps, FX Loops, Speaker selectors and whatnot.

When there's still no sound and all the cables are in order, then either
a) nothing is going into the head (Bass or instrument cable are to blame)
b) nothing is coming out of the head (probably an expensive problem)
or
c) a signal comes from the head, but the cab won't do it's thing. (cab or speaker cable to blame)

thank you for letting me know that the DC light is not a bad thing.

at least now, that’s eliminated!

 

[Stuart nemesis]

While I’m here

there’s a switch on the back
Ground/ lift

Could someone please tell me Which way I set the switch?

 

[Stuart nemesis]

guitar passed. It plays through my combo. Cables all ok. guitar and speaker tested ok.
I even used a multi meter.

Must be something in the head. or cab.
I looked in the head and there’s no signs of corrosion, burns, wires separated from the solder, or even dead bugs.

 

[Stuart nemesis]

Hi
So I’m back.

I’m sorry to see the Eden board vanish. It’s not a good PR move by Marshall.

the outcome here was that the amp (head) got fixed by a local electronics guy who I think fixed a cold solder joint but he never gave me a good explanation in English that I could understand. Probably because he over charged me.

but the main thing is, my rig is playing fine now.

 

[Stuart nemesis]

I checked out the ground/lift button and now I keep it switched to ground

 

[agedhorse]

Have you considered finding an owner's manual for your amp? That way you would know how those features operate.

 

[Redbrangus]

It does say in the manual that....

Sounds like he has a manual...reading it is another step.

To be fair, the manual IS pretty skimpy. But the DC light IS explained in there.

 

[Redbrangus]

there’s a switch on the back
Ground/ lift

Could someone please tell me Which way I set the switch?

I'm not familiar with your amp, but I'm going to offer the highly theoretical opinion that the 'ground/lift' switch only effects the direct output...it's there to help avoid ground loops between the amp and another device like a PA mixer when using the direct out. It has no effect on anything in the amplifier.

 

[Stuart nemesis]

I'm not familiar with your amp, but I'm going to offer the highly theoretical opinion that the 'ground/lift' switch only effects the direct output...it's there to help avoid ground loops between the amp and another device like a PA mixer when using the direct out. It has no effect on anything in the amplifier.

thank you, that sounds pretty good.
I got the amp 2nd hand, no manual and I found one for RS 700 but realised later it was for combos.

 

[Stuart nemesis]

Sounds like he has a manual...reading it is another step.

To be fair, the manual IS pretty skimpy. But the DC light IS explained in there.

I’m Not stuck on the DC light anymore. It’s the semi parametric EQ I’m curious about.
I gave it 20-30 minutes and then went back to practice.
Nothing gets in the way of practice.