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Sounds fades out when playing

While playing the guitar , the sound will fade out, even on both channels. sometimes it will come back on if you play with the knobs or smack the top of the amp. Any advice

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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mikeymiddles
  • 58 Answers

SOURCE: LOW VOLUME FROM RIGHT CHANNEL OF STEREO 1 SIDE OF SYSTEM

It seems like the speaker jack tip needs cleaning, or the contact has become bent away from the connector and needs to be re-aligned.  The Passport is a portable system, so after years of plugging and unplugging the speaker jacks may be worn.  Try using the "Stereo 2" connectors. You can also try cleaning the jack with electrical contact cleaner, and. a cotton swab. 

Posted on Jan 07, 2009

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arithebasspl
  • 3 Answers

SOURCE: My Laney VC30 Guitar valve amps volume keepd fading in

CHANGE THE TUBES. ARITHEBASSPLAYER

Posted on Mar 26, 2009

danforddan1
  • 192 Answers

SOURCE: amp turns on but no sound even with diff guitars and cords

Hi Dan
I wish I could just say what to fix, but you can not do this at home. Line 6 is a great amp and worth the time taking it down to the music shop , to be looked at an give you a repair estimate. good luck keep on rocking in the free world. DFD

Posted on Apr 13, 2009

  • 5603 Answers

SOURCE: my guitar won,t play threw the amp lots oof static

The things to check arre FIRST the cable. These often have breaks or bad connectors. Replace with known good one and try it.

Next are the jacks on the guitar and the amp. These go bad and wiggling the KNOWN good cable at each end will flag which or both being bad.

Next are the switches and potentiometers in the guitar. Use some CRC226 sprayed into the pot and switch contacts... use sparingly...

The key is to find which thing or things are bad.

Posted on Sep 15, 2009

  • 73 Answers

SOURCE: i have a line-6 spider 30 amp that started humming

output caps. dont beat up your amp. crazy
yostamplifier.com

Posted on Jan 21, 2010

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1 Answer

Certain notes have a buzzy break up sound through the amp


If not a valve issue check by preamp valve substitution 12AX7A's.Check solder joints +/- 16v circuits and send/return and input jacks.

Dec 11, 2013 | Fender Hot Rod Deluxe Guitar Combo...

1 Answer

Lately, the sound/signal fades to nothing a few seconds after I begin using. I've changed batteries so thats not the issue. Dunno if its time to chuck it or now, about a year old.


The fact that signal fades is indicative of something with a time delay. The question is where the delay is. If your guitar has a preamp and this device due to wear or contamination on the plug breaks the battery connection within the guitar, the problem could be a worn jack in the guitar that MAY work with your normal cable but not this Amplug due to slight size differences. Other problems could be corrosion on the battery connections in the Amplug. Sometimes headphone cables go bad so try those in another audio source and make sure they are solid. Sometimes these thing have real weak switches and the intial actio of turning it on momentarily connects the batterry, charging the internal filter capacitors which then bleed off... so try working the switch and see if it pops back on..

Jan 29, 2011 | Bass Vox Ap-bs Amplug Bass Headphone...

2 Answers

Ihave a marshell dfx 100 guitar amp...as i play it the volume lowers and will eventully fade to nothing... any ideas..


For a test in troubleshooting, see if level from the headphone jack fades or not when this happens and get back to us.

Sep 02, 2010 | Marshall Mg100dfx 100-Watt Combo Guitar...

1 Answer

I have Fender Hot Rod Deluxe and Blues Deluxe amps.After the amps are in use for 20-30 minutes, volume just flat out fades to almost nothing. I have had it checked out and technician could not reproduce...


I want you to do a test. while using the amp plug a pair of headphones into the preamp out... note you will only hear stuff on one side if they are stereo phones and the sound may be fairly weak... while the unit is operating correctely then unplug phones and use it. When it fades out plug in phones compare the level when it was OK... If the preamp output fades lower as well, then we know problem is in the preamp section...

We can do a lot of troubleshooting without opening the amp.

I see nothing in the scheamtics that should be an issue causing this...

Since it didn't fail for the tech, think "what was different?". Are you connecting something else? Foot pedal? Temperature? :Loudness of playing?

Now what else is in common to these two units... AHA! The guitar...

If your guitar has a battery in it, the 20 to 30 minutes fading would correspond to a battery failing and then recovering after you unplug the guitar for a while.

Apr 23, 2010 | Fender Hot Rod Deluxe Guitar Combo...

2 Answers

Marshall DSL 100 - volume fades away and gradually comes back on


IF this is a vacuum tube unit, these symptoms are that of a tube that the heater is intermittent, that is it cools off due to a break and then liights again.

Open the back and observe the heaters in the tubes. DO NOT be fooled by some that have TWO heaters in them. (use a mirror if necessary) A single one that comes and goes can cause the problem and the voiration can make it come and go. This behavior in a tube is NOT somthing readily spotted in a tube checker. The delay in fading and coming back would be the delay in warm up following a heater going out and cooling.

Feb 14, 2010 | Marshall Amplification Marshall MG250DFX...

1 Answer

I have a Line 6 Flextone III XL. I plugged in my guitar and the sound cuts in and out. It fades in and out. I checked the cable and try using another cable, samething. If I play with the cable by moving...


If the sound "fades" in and out that implies a SLOW change in volume.

If that is what you have, it is likely that there is a problem with the power input or power supply as these are the only thing that would have a time constant to react SLOWLY. Fortunately, this area is one of the easier ones to find and fix.

Dec 07, 2009 | Line 6 Music

1 Answer

Handmade guitar amp, when i plugin the guitar i start playing, but then signal gets lost, the sound dissapears, and then it appears again, and after minute or two it dissapears. i've tried to put full...


have you got valves fitted to the amp as they can cause fading if old >damaged >not fittted properly also check the speaker connects and try playing half volume the output should be steady.. you say its handmade if you made it pull out the amp board and check your soldering joints look to see fi there is any that need resoldering as they may be getting hot and causing a resistor to fade..

Aug 02, 2009 | Orange Crush 30R Reverb Guitar Amplifier

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