TC Helicon

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TC Helicon

Postby Alain Benoit » Wed Jul 04, 2012 10:03 pm

A customer called me about having 'fried' his TC Electronic Helicon Voice live 2. He had apparently plugged in a 2 amp 18 VAC adapter where it normally uses a 12VDC 1 amp one.

Here it is partially disassembled.
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Here we see where an SMD capacitor has been vaporized, it likely served as a parasitic snubber between the ground plane and the Vin. I did not replace it as i do not stock SMD components and could not determine the value without a schematic.
Image

Here is the roasted component.
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Component FB00 here is actually an SMD fuse. The 'TN' marking on it denotes 2 amps. The fuse was indeed 'blown'.
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Here is a replacement.
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The unit is now reassembled, working and the owner is happy.
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A.
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Re: TC Helicon

Postby Malcolm Boyce » Wed Jul 04, 2012 10:28 pm

Be more careful with the power supplies me thinks... :-)
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It just fills Forum pages..." --compasspnt

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