The Digitech Trio seems to be frozen, when I start it the red light blinks slow, after pressing the pedal it starts to blink fast but will do nothing after that

Question edited for full 'make model (what it is)'. Plus it appears to be an 'RP', no an 'ro', and Capitalised.

It seems to have issues and because of that was discontinued. Take it to your local music store, they will know an electronics engineer.

https://www.google.com/search?q=digitech+rp+350+turns+on+then+off

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Assuming the pedal itself was put together correctly, check lead dress and see if there may be any stray metal bits shorting traces, and then look at the power supply. Try a different supply and see if the pedal works. If pedal does not, and the supply you are trying is good, look for wiring that may be incorrect or broken from when you opened it up. You may need a meter to make sure polarities are correct if you removed any wires from their connections. Also look at the possibility the movement of your inspection may have been enough to make a marginal solder connection fail totally. It happens, the RoHS compliant solders do not wet leads as well as the old lead/tin solders did. Just reflow the solder joints.

But, the power supply is a good candidate for a failed electrolytic capacitor. The offending caps may be bulged or leaking.

Make sure you have the OFFICIAL Digitech power adapter. Universal adapters or those for MOST other pedals will NOT work... things may light up but you will NOT get audio. This unit requires an adapter supplying 9 VAC (not DC) at about 1 amp. These AC output adapters are not very common and people get the units without an adapter and try using universal adapters and they do not work. An AC adapter is used by Digitech so they can generate both plus and minus voltages internally. I don't know what your utility power voltage is in Cebu, so you need to get an adapter for your voltage that will give 9 VAC output and fit the power jack on the unit.

Hi. I had the same problem and fixed it by clearing all the phrases. An explanation of how to do this is below (written by someone else, not me) But, expect your guide beat to now sound like a fuzz instead of a drum. This really sucks and there is apparantly no fix for the guide sound except to send it back to Boss. Good luck.

1. Start by selecting Phrase 1.

(if the 'REVERSE' or 'AUTO START' are lit press them off.)

2. Select 'INST & MIC' by pressing 'MODE'

3. Hold down 'EXIT' and 'AUTO START' together - at the same time, this should light up the green LED for 'LOOP PHASE'

4. Hold down 'WRITE' and 'EXIT' together
then hold 'WRITE' on its own
then 'WRITE' and 'EXIT' together again...as if you were clearing a phrase.

they should light up in red and flash, if not try a combo of section 4.

5. Repeat on all Phrases 1 - 11.

does your bass have active pick ups?
do the ratings on your amp match the ratings on your speaker?
are you using a pedal?
does your pedal have an output adjustment?
have the ground on your bass checked.
make sure you're using the right kind of cable.
and be sure that the outlet you're using is grounded.

All DigiTech expression pedals use an optical system instead of potentiometers.

Either the light is broke, or the filter.

The filter protrudes from the bottom of the pedal, and is darker at the top and gradually fades to clear at the bottom. If this breaks off, then there's nothing to limit the amount of light to the optical system.

If it is the light, then you'll have to have it serviced by someone qualified to work on it. Your local music shop should be able to help you out.


Hope that helps!

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/cameron_463100ffd54b591d

Check that your power adapter is for 9 Volts AC (not DC like most pedals) and is rated at 1300ma or more.

It sounds like the guitar level input to the unit is too low.

NOTE: With this product you MUST use an amplified or electric guitar that has a preamp within it.

If you have a straight guitar that does not have an amp in it, buy a preamp to first run the guitar through.

A friend of mine had the exact same problem. In his case the pedal is only good for hammering nails now. If it still has it warranty I'd say look into that, if not you've got nothing to lose. Open it up, look for unattached wires. Also, try using a battery instead of an AC adapter..

Try contacting their service center rep at (801)566-8800. They might send you a schematic for the pedal if you explain your situation. They do recommend using the original power supply PS0912 which should still be available. Hope this helps.