Question about Boss ME-70 Guitar Multiple Effects Pedal

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I used my ME70 last night,plugged it in this afternoon, and nothing,checked the leads,the guitar,the earphones,just cant under stand it.anybody help?

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Contact boss


BOSS ME70 Factory Reset.
Just do this:
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Jun 11, 2014 | Boss ME-70 Guitar Multiple Effects Pedal

1 Answer

What does bt mean on my ME70


we had the same thing happen and discovered it was low batteries

Feb 02, 2013 | Boss ME-70 Guitar Multiple Effects Pedal

2 Answers

How do I factory reset a BOSS ME-70 effects pedal


press pedals 3 & 4 at the same time to swtich to Manual Mode. Hold down EDIT/EXIT and press the MOD pedal. Press WRITE twice.

Good luck!

Sep 04, 2011 | Boss ME-70 Guitar Multiple Effects Pedal

1 Answer

I bought a Tascam ga-30cd amp new, and have barely used it for about six months. Yet it periodically crackles and sound drops out in the middle of a song. I will then press the boost button and it will...


I suspect there is bad soldering on the circuit board in the vicinity of that button. The movement causes the connection to re-establish. It isn't necessarily one of the button leads. Look for a little grey line around the menicus of one of the soldered leads.

Jul 25, 2011 | Tascam Ga30cd Guitar Amplifier with CD...

1 Answer

I have a Roland AC-90. During a gig last Sunday I had my Taylor acoustic guitar and a Shure mic cutting out. There would be a break in sound - both guitar and voice would go - and then it would all come...


I would expect there is bad soldering or a circuit board crack. Inspect the soldering aound the leads, especially pots and heavy components. Finding all the retaining screws can be frustrating. Expect the screws for the handle to also attach to the amp chasis. They are often hiodden under plastic caps.

May 31, 2011 | Roland Ac-90 Acoustic Chorus Guitar Amp...

1 Answer

Heavy radio interference when the amp is in use. It's worse at night. I'm using a Taylor 816 acoustic electric guitar with Taylor's balanced quarter inch to XLR cable into my Loud box Performer. Nothing...


Well, the first thing is to find if it is the amp or the guitar. Plug in a guitar cable WITHOUT being in the guitar... is the interference there? If not, the pickup of the interference is in the guitar electronics. In either case, bypass caps need to be instaalled in the offending unit near the input to bypass the interference to ground. You will need to seek someone familiar with electronics to fix this. There is a chance that the only cure will be to distance yourself from the radio transmitter. The transmitter has to be an AM radio type as FM would not generate audio in your system.

Apr 21, 2011 | Fishman Loudbox Performer Amp Acoustic

1 Answer

My new SWR workingpro 12 has a low frequency permanent noise, any idee ? Maybe from the Power supply... Thanks, bolliger_rudolf@bluewin.ch


All amps make a small amount of noise (system hiss) but the amps own power supply should not cause a problem on it's own.
However if the frequency is around 50hz (the G 2 1/2 octaves below middle C on a piano) it is most likely due mains electricity interference or an earth (grounding) issue.
Here are a few things to try to identify the source.
  1. Could be a lack of earth (grounding) This is potentially VERY DANGEROUS and could result in electric shock if you touch a metal part of the amp or touch some other metal object (like a microphone stand at the same time as your guitar strings). Check the earth wire is firmly attached at both ends of the power supply lead.
  2. Could be a defective mains socket - try plugging it in to a different one, preferably on a totally separate circuit.
  3. Could be an earth loop. These can occur if you are using the amp with an output to a public address system or mixer that is also earthed because of a 'potential difference' between the two earths. Solution - use the balanced (xlr) output which incorporates an earth lift rather than the unbalanced jack output.
  4. Unplug any effects pedals, foot-switch etcetera to see if that eliminates the problem. Turn off any internal effects, including bass intensifier.
  5. Make sure any signal cables (guitar leads) have good quality screening and that the screen is well soldered to the jack plugs at both ends.
  6. Ensure signal leads do not lay along side (parallel) close to mains electricity cables but are well separated and only cross at right angles.
  7. Move the amp away form other electrical equipment that may have a powerful magnetic field (especially CD or DVD players, hearing loop amplifiers, radio microphone transmitters / receivers, mobile phones
  8. Turn around or stand in a different position - it might simply be the pick-ups in your guitar causing interference in the magnetic field of the power supply.
  9. Does plugging in or unplugging a signal lead / guitar make any difference? This particular amp requires only mono jack plugs a stereo (trs) plug may be shorting across terminals
  10. Does it change when you touch the strings with your hand? If yes check internal wiring and screening within the guitar.

Feb 09, 2011 | SWR Workingpro 12 200watt 1x12" Bass Combo...

1 Answer

I get a lot of scratchy electric interferance noise when I play my guitar, but it hasn't always been this way...just started


Unless something has suddenly happened to your guitar (like being dropped) start by eliminating as many external factors as possible.
  1. If you are using an effects pedal plug straight into your amp to see if that cures it.
  2. Turn off any other electrical equipment in the vicinity that could be causing interference.
  3. Try changing your guitar lead - it may be just poor screening or cracked insulation in the cable.
  4. Try switching back and forth between the different pick-ups and also fully rotate all the volume and tone control knobs quickly several times - the contacts may have got dirty over time.
  5. Pull the jack plug in and out several times to make sure it isn't dirty contacts in there too - if it is give it a little squirt of 'switch cleaner' spray - available from most electronics suppliers or online via Amazon E-Bay etc.
  6. Check the screw bezel (threaded ring-nut) that holds the jack socket in the body of the guitar. Sometimes these work loose over time and then the jack plug doesn't quite go in far enough resulting in poor electrical contacts.
  7. If your guitar has active circuitry pick-ups also replace the battery - use high quality batteries (Duracell Ultra or similar) never re-chargeables as they don't hold high enough voltages.
  8. Try a different guitar to see if the problem is in the amp. Stand or sit in a different position, move about, turn round 90 degrees to see if it is just interference between the guitars pick-ups and the power supply in your amp.
  9. If none of the above works then it is likely to be a problem with the guitar's electrics - don't tamper if it is still in warranty. Carefully remove the back plate to see if any wires have come loose - it might be a dry solder joint on the jack socket or one of the control knobs so may not be immediately obvious. If the screen wire (sleeve of the jack plug) has come off it may not stop the guitar working but it may cause the noise problem.
  10. Beyond that I can only suggest taking it to a qualified guitar technician who can fully check the electrics with a test meter.

Jan 30, 2011 | Hagstrom Viking Semi Hollowbody Electric...

1 Answer

How to set up with amp and distortion pedal


With everything switched off. I will surmise that you are using the onboard battery with the foot pedal and not a power supply.
1. Plug lead from guitar/instrument into INPUT side of pedal
2. Plug lead from OUTPUT side of pedal into amplifier INPUT.
3. Turn amplifier volume to about 10 o'clock - to stop blowing your ears out.
4. Turn volume up on guitar to acceptable level.
5. press foot switch on pedal and adjust pedal controls to suit your type of distortion.
6. Play like Hendrix.
Good Luck
ps Just as an after thought rechargeable 9volt batteries are the way to go. I've been using them for years as I always get caught up in the power cable.
If you're going to add another pedal like a Phaser, Compressor, Flanger or what just use small connect leads between each pedal but always, always put the compressor pedal last in the line.

Sep 12, 2009 | BOSS AUDIO SYSTEMS Boss Ns2 Noise...

1 Answer

I have a spider III 15W amp that has worked for a year. plugged in last night and it's getting power but no sound. Not even a hum from the speaker. checked everything and it's definitely the amp....


Try disconnecting the speaker from the amp with the amp unplugged from your power. Never work on an amp when its plugged in unless you know how dangerous it is. Check for resistance across the speaker terminals with a volt ohm meter to see if you have a blown speaker. Thats the first thing to look for. You should here a hiss or a low hum when your amp is on and you plug a guitar cord into the input without the guitar. Check those two things first.

Jul 15, 2009 | Line 6 Spider Iii 15 Modeling Guitar...

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