SVT-CL DI not working.

[csholtmeier]

Are there some things I can check, or does it need to go into the shop?

I also noticed the red bias lights are flashing, probably not related, but worth mentioning.

[T-Bird]

Hi.

Flashing red leds indicate a problem, not necessarily the reason the DI doesn't work, but something's not right in there.

If You wait a while, either Jerrold or Dino will chime in.

Regards
Sam

[Jerrold Tiers]

Flashing how and when?

the DI is extremely simple and uncomplicated on these, so basically you are down to a bad connection or one of just a very few parts........ it is off the power amp input, and so it should have output if the amp does......

[csholtmeier]

Red lights stay on with nothing plugged in, amp off stand by.

[Jerrold Tiers]

And can't be adjusted off with the bias?

A problem exists.....
From Manual:

Condition
Problem
Solution

Green comes on, then red
No problem
The longer the green LED is on before the
red LED comes on – the better matched the
tubes are.

Red comes on, then green
Tubes not properly matched
Set slightly before green comes on, obtain
matched tubes when possible.

Red comes on, no green
One or more tubes are non-functioning
Check to make sure tubes are all seated
properly; if so, find and replace bad tube(s).

None on
Possibly no high voltage or bad
Have unit checked by a service technician.
Bias Control or bad tube(s)

Both on all the time
Possible bad Bias Control or bad tubes
Have unit checked by a service technician