Troubleshooting - Yamaha MX-D1 - Amplifier Owner's Manual

TROUBLESHOOTING

If your MX-D1 does not appear to be working properly, look up the symptoms in the following table. If the symptoms per-
sist, or are not listed, set the MX-D1 to standby mode, disconnect the AC power cable from the AC outlet, and then contact
the nearest Yamaha dealer.
Symptom
Cannot turn on the MX-
D1?
There is no sound?
A hum can be heard?
The output sounds
unnatural, has a limited
bass range, and poor
stereo image?
E-8
Cause
The AC power cable is not connected
properly.
The component connected to the
CONTROL IN jack is not turned on.
The MX-D1 is not connected properly.
The source component connected to the
MX-D1's input jacks is not set correctly.
The wrong inputs are selected on the MX-D1.
The MX-D1's protection system is active.
The audio pin cable connected to the
UNBALANCE jacks is not fully inserted.
The speaker polarity is wrong.
Remedy
Make sure the AC power cable is connected
properly to the AC IN connector and a
suitable AC outlet.
Turn on the component that is connected to
the CONTROL IN jack.
Check all connections and correct as
necessary.
Refer to the owner's manual of the source
component.
Use the UNBAL/BAL switch to select the
correct inputs.
Check the speaker cables for short circuits
and correct as necessary.
Fully insert the audio pin cable.
Check the polarity of the speaker
connections and correct as necessary.