Line 6 Spider Iii 15 Modeling Guitar Amplifier 15 Watt - Answered Questions & Fixed issues

Hey I have the same problem on the one i just bought for 10 bucks, I was wondering if you could tell what the pink tube thing and the white tube things near the semiconductor that was screwed to the metal are? are they capacitors or what? please help.

Turn the amp off. Hold down the A (or clean) button as you turn on the power and hold the button for 5-8 seconds, then release.

Line 6 does not supply schematics to end users.

After making sure your guitar cable is OK (they often cause the problem) check the inout jack on the amp. They often get broken by yanking cable sideways.

I'm not sure which amp you're playing thru. but generally the settings you want for a clean sound. check your drive (or Gain ) knob. You want it about half way.and your Channel volume, half way. those are good starts. then let your master volume do the rest. Also, make sure, if you have active pick-ups on your guitar. check the batteries. if they're low, it can cause distortion. if this doesn't resolve, then its internal. could be anything at that point.

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

If the damaged component is designated D20 then it is a diode. If it was a resistor it would be marked as R20.There is a copy of the circuit available here http://music-electronics-forum.com/t3077...

Provided that you're not using any external devices, and plugging the guitar directly into the amp, this sound solely like an internal switching problem. Meaning...it will require service. Chips can get faulty like that sometimes. If you're using any external pedals, remove them and see if it happens. If not...the pedal(s) are to blame.

Is it potentially fixable, but probably not worth it. By the time you have paid for spares and an engineer to fix it it would be more than the amp is worth. If it is within warranty then take it back to the shop. It may well have been a fault with the amp.

It sounds like the speaker may have gone. I have had the same happen to me in the past. Only option is to replace the speaker I'm afraid!

If you can see where the power wiring comes into the amp there has to be a fuse in there somewhere as the fuse is designed to cutoff all power when overloaded

What this has to do with a guitar amplifier is beyond me, however your symptoms would indicate the bike is starved for fuel as the choke richens the mixture. Recommend a carburator cleaning and rebuild and replace the fuel filters which should be done first.

Abra com cuidado e verifique as lãminas do Jack do phone , pois se elas estiverem levantadas não sairá audio pelo falante, pois existe um chaveamento que interrompe um ou outro. abraços

Walter Brunelli

The jack is replaceable by itself by a competent repair person.

You've got a loose wire! What's happening is that there's a bad potentiometer (the electrical component behind the knob) that's out of place and is only connecting fully at one point in the knobs circuit (the part where you get full volume) take it in to an amp tech at your local music store and they'll fix it up easily.

While it could be true that you're having a problem with the guitar or cable as the previouse expert suggested, to say that it can't be anything else is false. It could be a jack problem...it would only be apparant when the jack is making contact with a cable. I do think you should test it with another guitar and another cable but if that is not solving the problem then I bet it's a problem with the input jack of the amo itself or even one of the ionternal components (this is a digital amp and there are MANY components and settings that can trigger a problem like this) If the problem is not solved with a new cable/guitar configuration then it's time to take it to the shop.

This is a tiny amp good for practice at low volume levels. You are likely overdriving it and the power amp chip goes into thermal protect. If you volume level is much louder than a small boom box, you are driving it too hard. Best to get a bigger amp.

Bad soldering, especially around the jacks and plugs. Crack in the circuit board. Bad switch contacts on the headphone jack... all these are first things to check.
Here is your service manual for the unit:

http://elektrotanya.com/line6_spider_15w_ii3012_1508_sm.pdf/download.html

Wonder no more, there are many others with many different brand of amps that do this. Obviously it needs repair unlless you have a problem with the cable or source you are using or have forgot to turn up the gain controls which I am sure you have checked. There are so many possibilities that there is no way we can say open it and replace this... If you get a small pop in the speaker when you turn it off, then the power portion of the amp is probably OK. A common probllem on amps that have a preamp out or power amp input jacks is a failure of the switch contacts on the crummy jacks that pass the audio through from teh preamp to the power amp...

Try here:

http://line6.com/support/manuals/

you have to select the series and model.