Question about Line 6 Spider Iii 15 Modeling Guitar Amplifier 15 Watt

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No sound, no lights except lcd screen and only shows black boxes

Its not the internal fuse or plug fuse, their both ok. Just got no lights and only solid black boxes in the LCD display.

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  • 73 Answers

Sounds like something shorted. you probably have a shorted relay and maybe more. depends on when the protection circuit kicked in during the short. the relay being shorted will not allow power to even go to the power supply on/off switch. you can test with a mulitmeter, just be care full, black/groung lead grounded to chasis (a must!!!!!! can use a screw hole to stick the test probe in). then set your meter to read 200 ac volts and touch off on a leg of the switch, etc. look at your readings and see what kind of voltage is rolling thru. you should be getting close to 120 acvolts. carefull!!! if nothing then the problem is before the switch, relay, power resistor, diode, etc. The worst case would be a transformer but i am not to sure line 6 power schemes. the relays are hard to find, you should have part numbers on it, for parts goto mouser.com. you can get almost anything.

Posted on Jan 31, 2010

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Posted on Jan 02, 2017

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I have been playing my clavinova as usual, then suddenly the power went off. We have no power cut and all plugs are okay. Help!


Do you have a red indicator light or any type of illuminated display?

check fuses\n plug, if this is ok there are a couple of internal fuses.
obvioysly make sure you disconnect the mains cable before opening the keyboard, if these are ok then unless you have technical knowledge I would seek the advice of a Yamaha repair specialist.

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I believe there is an internal fuse in these which, according to a friend who has these, seems to blow occasionally for no apparent reason. He has also had to send two back for replacement and would not buy again, they seem to be inherently unreliable although they sound great.

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I have a Williams Encore Digital piano. When I power up there is no sound. Upon power up there are 8 small rectangle on the LCD screen. 7 red light are lit. They are the 4 lights above the "user...


Holding the page up and down buttons while powering on supposedly resets it. I have no sound except demos, but no lights showing like yours, and williams tech support said to reset that way but it didn't seem to do anything. Good luck hope this helps!

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My Fender Supersonic 60w head is getting zero sound thru my speaker. Not even the usual ground level hiss. Checked/replaced all tubes. The fuses are good. Cables are good.


Next is to check if the speaker is open circuit. Check with ohmeter or plug in a radio/hifi at low volume to the speaker.

If speaker is OK, next suspect is power supply. This will be over 400 volts so not safe for the unwary. I assume filaments are lighting up.

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The active light does not light up when I plug my guitar in and no sound comes out from the talkbox ... But the guitar sound can run through it to an amp where the guitar sound comes out


It sounds like you have NOT connected the power adapter to the box to power it. The guitar sound won't be too loud as you run the hose to your mouth and pick up the sound with a microphone such as a Shure SM57 which then goes to your amplifier. Without the power adapter the internal amplifier will not produce any output.

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NO sound through the AMP even though the power light comes on


Not a fuse. First thing, to check your speaker (amp unplugged, of course), touch the + and - speaker connections to a 9V battery. If you don't hear a pop sound then your speaker is blown. Thus, no output sound. If speaker is OK, then the output IC is your problem.

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1 Answer

Its not the internal fuse or plug fuse, their both ok. Just got no lights and only solid black boxes in the LCD display.


Hi there. Switch Mode Power Supply failure. Probably cooked power MOSFET. Only uses PCB to dissipate heat. POOR design and I told them so. (Line 6)
Thanks
Paul

Jun 28, 2009 | Line 6 Spider Iii 15 Modeling Guitar...

1 Answer

Black boxes on the lcd screen of the spider 6 III amp


unplug it and open it up. there are ribbon tape connections in there that arent very secure. maybe one came loose...

Mar 28, 2009 | Line 6 Spider Iii 15 Modeling Guitar...

1 Answer

Black boxes on the lcd screen of the spider 6 III amp


Make sure both the master volume and channel volume is up. If that does not do it, take it to the nearest Line 6 repair center.
http://line6.com/support/serviceCenters/

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