Another Ampeg SVT-2 Bias Light Question

[D Bopp]

I see these questions a lot, but couldn't find an exact answer on my question.
I just recently bought a mid 90's SVT-2 Pro. It sounds great, but I noticed the Bias lights are not lit up when the amp is on. Neither the green nor red lights are lit up.
Does this mean I need new tubes? Or does it mean the green and red LED lights are not working properly?
Thanks

[MIJ-VI]

Does the amp sound OK?
Is it making an unusual amount of noise?
Is it kind of weak in its volume?

[jastacey]

I just recently acquired a SVT-2 Pro ( 1997 vintage ) Here's what you need to do:
Let the amp warm up for at least 20 minutes, then with the stand-by switch in the off position ( the amp will be on ), with nothing plugged in, adjust the trim till the green lite comes on, then your done.

[D Bopp]

I haven't played it out yet, but it sounds ok in my house. It's very loud.