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-   -   Machie 802 VLZ3 Power Problem - Solved (https://www.dvinfo.net/forum/all-things-audio/538540-machie-802-vlz3-power-problem-solved.html)

Don Palomaki March 4th, 2022 10:53 AM

Machie 802 VLZ3 Power Problem - Solved
 
Just to pass on in case anyone runs into a similar issue.

My 802 VLZ3 wouldn't power up properly. The level LEDs partly lit and it did not work. After a few moments a smell came from the power adapter.

Turns out there were two issues.
- one of the three wires in the plug that goes into the back of the mixer had a broken solder joint within the plug on the cord. The repair required disassembling the connector and resoldering. (It was the ground/neutral/common wire.)
- The power transformer inside the adapter "wart" had a "shorted" winding internally that resulted in heating of the core and very little output voltage. The repair required replacement of that transformer. I found one that was the same physical size and power rating at substantially lower cost than a replacement adapter and recycled the cords and case.

Note that other mixers in the VLZ series may use different adapters


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