Audio Note DAC Kit 4.1

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Page 46

First measure from B+ to GND on the M2 PCB (use the

ground point closest to the LED section).

You should read approximately 260v DC.

Now measure the filament voltages - these are the

connections labeled +6V2- on top of the PCB.

These should be approximately 12v DC.

If there is a problem with any of the above voltages, switch

to AC volts and measure the 300 300 points on the M2

PCB – you should get somewhere over 600V AC.

Audio Note DAC Kit 4.1 - Page 46