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Author Topic: Any Love For The Digitech Valve FX?  (Read 15741 times)

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DrDckhol3

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Any Love For The Digitech Valve FX?
« on: Time Format »

I've just acquired one of these, seems to be some love out there for them, but not from me....at least not yet. I can't get a good signal out of it. It's very , and I mean very, faint. Any suggestions? I hope it doesn't turn out to be a  :poop:
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Sparker

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Re: Any Love For The Digitech Valve FX?
« Reply #1 on: Time Format »

I've had a couple of these. I liked the all in one convenience of preamp and effects all in a shiny 1U case. The preamp tube gain was fairly mild though and you really had to wind the compressor right up to get any sort of lead tone, but then noise also increased lots. It was good as a clean / rhythm unit, but the single 12AX7 just did not seem to give enough 'ooomph' on its own. It's like it needed a 2 Tube mod! Never used the SS tones, which seemed to be based on the popular Digi stomp stuff and didn't appeal to me. That said, it was not a faint or weak sounding unit, so maybe you have something else going on in there with yours. Could try a factory reset, see if that improves things.
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ADA Gear: MP-1 Tube Board

DrDckhol3

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Re: Any Love For The Digitech Valve FX?
« Reply #2 on: Time Format »

Did the factory reset when I got it. There is definitely something wrong with it. Checked the inputs and they are not suffering from any disconection from the board sooo..... :poop:
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rnolan

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Re: Any Love For The Digitech Valve FX?
« Reply #3 on: Time Format »

What are you running it into, could be inst/line level miss match?
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Studio Rig: MP2/MB1 > Eurorack UB2442FX-Pro > TC M-One XL > Behringer Truths (with Truth Sub) / QUAD ESL 63s
Live Rig: MP2/MB1 > Alesis Quadverb > Alesis Midiverb 4 > Yamaha AM802 > B200s/Carvin TS100/DCM200L > ADA Split Stacks/Mesa P112s

DrDckhol3

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Re: Any Love For The Digitech Valve FX?
« Reply #4 on: Time Format »

Headphones as well as left and right outs all have only a faint hint of the signal coming through. :dunno:
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Sparker

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Re: Any Love For The Digitech Valve FX?
« Reply #5 on: Time Format »

Any signal coming through in bypass mode?
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ADA Gear: MP-1 Tube Board

DrDckhol3

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Re: Any Love For The Digitech Valve FX?
« Reply #6 on: Time Format »

Any signal coming through in bypass mode?
.

Negative
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Sparker

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Re: Any Love For The Digitech Valve FX?
« Reply #7 on: Time Format »

And the front panel control stuff works as normal - buttons, LCD screen, LED display, selector knob?
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ADA Gear: MP-1 Tube Board

DrDckhol3

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Re: Any Love For The Digitech Valve FX?
« Reply #8 on: Time Format »

Yes, everything works, I just hear a very faint top end hiss on distorted settings and that's it.
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Sparker

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Re: Any Love For The Digitech Valve FX?
« Reply #9 on: Time Format »

Ok, you will have to open the top of the case and check some low DC voltages, first either side of the +/- 12V regulators U6 and U7 with a multimeter. If you can post some high res pics of the board inside the case, I can tell you where to probe. Are you able to do this?
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ADA Gear: MP-1 Tube Board

DrDckhol3

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Re: Any Love For The Digitech Valve FX?
« Reply #10 on: Time Format »

I will post them when I get off work tonight. I am somewhat of a newb although I did convert my Marshall from 6L6 to EL34 with no problem so I'm confident that I can change some components out if I need to. I appreciate your help.
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MarshallJMP

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Re: Any Love For The Digitech Valve FX?
« Reply #11 on: Time Format »

Do you have a schematic,maybe i can help too?
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DrDckhol3

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Re: Any Love For The Digitech Valve FX?
« Reply #12 on: Time Format »

Ok, you will have to open the top of the case and check some low DC voltages, first either side of the +/- 12V regulators U6 and U7 with a multimeter. If you can post some high res pics of the board inside the case, I can tell you where to probe. Are you able to do this?

Here are some pics http://s34.photobucket.com/user/drdckhol3/library/Digitech%20Valve%20FX
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DrDckhol3

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Re: Any Love For The Digitech Valve FX?
« Reply #13 on: Time Format »

Do you have a schematic,maybe i can help too?

I don't have scematics :facepalm:
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Sparker

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Re: Any Love For The Digitech Valve FX?
« Reply #14 on: Time Format »

Schematics and manual attached
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ADA Gear: MP-1 Tube Board
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