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Introduction |
| Power bricks are essential to operating our electronic devices. Even manufacturers who are known for their quality products are guilty of producing power bricks that quickly go bad. You could simply pay a premium price to buy a new replacement power brick from the device maker, but it is usually fairly simple to repair the existing power brick to be as good as new. These instructions are fairly general, but I will use as an example the power brick for some Bose Companion 20 speakers. This power brick is labeled as BOSE model PSM36W-180. | | | Most power bricks fail in the same way. The insulation starts to disintegrate near where the DC output cord exits the power brick, leaving bare wires exposed. Now you have a safety hazard that could lead to a short circuit. | | | You could try to cover this up with electrical tape, but the bad spot might persist underneath the tape or inside the plastic stress relief stub where the cord exits the power brick. I will show you how you can remove the bad part of the cord, leaving the remaining cord as good as new. |
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