Schiit Ragnarok - Manual (Page 8)

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CLEARING FAULTS
Ragnarok has extensive fault checking built in, for maximum safety.
It continuously monitors for DC offset, overcurrent, and bias. When
Ragnarok encounters a fault, it will mute the output, put the amp into
low-gain mode, bring the volume to zero, and flash the LEDs on the
front panel.
If this happens, don’t panic! Faults happen. They can be as simple as a
shorted speaker cable or improperly wired headphone cable. Here’s how
you troubleshoot them.
1. Turn off the amp, turn down the volume, and disconnect everything.
This means everything—all inputs, speakers, and headphones.
2. Turn on the amp with no inputs or outputs connected. If the LEDs on
the front never stop flashing, there’s a bigger problem. Contact us for an
RA. But, most likely, they’ll stop flashing after a few seconds and you’ll
hear a click. This means everything is fine with the amp, and there’s a
fault to be found somewhere else in your system.
3. Plug in your first input and select that input. If the LEDs don’t stop
flashing, that input has a problem. Have it checked for DC offset.
4. Repeat this process for all inputs until they are all connected and
there are no LEDs flashing. If any input causes the LEDs to keep flash-
ing, it has a problem—have it checked for DC offset and do not use it
until it has been repaired.
5. Connect your preamp outputs. Even the preamp outputs are
monitored for faults. Turn up the volume. If the LEDs flash and the
amp cuts out again, you have a shorted preamp cable, or there is
something wrong with the device you’re connecting to. Have it checked
for shorts or improper wiring.
6. Connect your headphones and turn up the volume. If the LEDs flash
and the amp cuts out again, you have a bad headphone cable, or an
improperly wired headphone. Have it checked out and corrected.
7. Disconnect your headphones, connect your speakers, and turn up
the volume. If the LEDs flash and the amp cuts out again, you have a
short in your speaker cables, or an internal short in the speakers. Check
the cables and try another pair. If that doesn’t fix it, have the speakers
checked out for faults.
Special note: if your speakers have any cables connecting both left and
right speakers together, or if they are speakers intended to reproduce
stereo from a single box, they may have a common ground. This will
cause Ragnarok to go into protection mode continuously.
8. Connect everything as you had it, and enjoy your music again.
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