portablemarko Posted January 12, 2014 Share Posted January 12, 2014 Hi, I'm trying to get a line 6 flextone 3 working for my dad (it belonged to my brother before he moved to another country). Anyway - it's been sitting around for a while, and I've cleaned it up a little,successfully upgraded the firmware with line 6 monkey to 1.10 and had a look around the circuit boards to check if there were any obvious loose connections/corrosion etc. which there weren't. It currently only produces the faintest of sounds - I rig it up to an audio out to test it, and you can definitely hear the audio, it's just extremely quiet. I was hoping someone might be able to point me in the right direction for the next step - maybe something in the amplification circuitry needs replaced? All lights etc. appear to be fine, and you can hear the 'whoomf' from the cone when you switch the amp off, so I'm assuming that's ok! Any suggestions? Thanks, Mark Quote Link to comment Share on other sites More sharing options...
portablemarko Posted January 12, 2014 Author Share Posted January 12, 2014 edit!: just tried it with headphones, and the same faint sound comes through the headphones, even with all knobs turned up to 11... Quote Link to comment Share on other sites More sharing options...
Kawinut Posted February 17, 2014 Share Posted February 17, 2014 Hey, I'va had one for 11 years and it just stopped producing sound. I didn't tear into it yet, just curious if u found a solution. Thanks, Doug Quote Link to comment Share on other sites More sharing options...
bluebluetones Posted March 4, 2014 Share Posted March 4, 2014 Hi, Not sure which Flextone you have (Flex III, Flex III Plus, or Flex III XL) but have a look at the back of the amplifier. You will see a whole bunch of input jacks (Send, return, and possibly some labelled Ext Speaker depending on which model you have) Take a regular guitar cord, and insert it in-and-out several times on each jack. I would personally do this approx 20 times for each jack. Don't be rough with them, but just simply plug and un-plug a cord several times in each jack. It is possible the "Switching" style jacks used in these amplifiers have oxidized a bit from sitting around, and need a little cleaning. Running a jack in and out is a simple way of loosening any dust up in them. If this does make a difference, and the amp comes alive again, you might want to go a step further and use some cleaning fluid on these contacts. This would require you to open the amplifier up...I noticed you mentioned you were looking at the circuit boards, does this mean you have opened the amp up? If so, use some contact cleaner very sparingly on each leaf of the switching jacks on the rear of the amplifier. Some folks have suggested spraying into the jacks themselves and then working a cable in and out, but I found that suggestion a bit sloppy. Who know what the stuff is spraying onto in that instance! Preferably adding the cleaner in a controlled and careful fashion is the best way. Please let us know if this helps and/or how you make out. Quote Link to comment Share on other sites More sharing options...
inkydinky Posted December 14, 2014 Share Posted December 14, 2014 I had a similar problem. Bought it to a repair guy and he sprayed the board with contact cleaner and it's fine now Quote Link to comment Share on other sites More sharing options...
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