Phase 100 not working

[Sigesmundninja]

A friend of min have a broken MXR phase 100 that I am trying to get working but I think I might need some help with this one. My best guess is to start looking somewhere in the powersupply section casue it just doesn't power up. My friend use a little poweradapter that goes from 3 to 12V. the adapter has a little indicator-light that goes off when I plug it in to the phaser. So my best guess is that something shortcircuets.

Any ideas where I should start?

[LaceSensor]

Try battery power

[Scruffie]

Welp, i'd look at the polarity protection diode first if it has one.

Is it modern or vintage?

[Sigesmundninja]

Battery doesn't work either. This is a modern one, I will try swapping the diode herer in a minute.

[Sigesmundninja]

The diode did the trick!!! thank you

[Scruffie]

The diode did the trick!!! thank you

If the 3-12V power supply is like mine, you can put different sockets on the end which can be put backwards so reverse polarity = dead pedal.

Glad it was a quick fix