Yamaha MX-D1 - Amplifier Owner's Manual - Troubleshooting
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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
Cause
Remedy
Cannot turn on the MX-
D1?
The AC power cable is not connected
properly.
Make sure the AC power cable is connected
properly to the AC IN connector and a
suitable AC outlet.
The component connected to the
CONTROL IN jack is not turned on.
Turn on the component that is connected to
the CONTROL IN jack.
There is no sound?
The MX-D1 is not connected properly.
Check all connections and correct as
necessary.
The source component connected to the
MX-D1's input jacks is not set correctly.
Refer to the owner’s manual of the source
component.
The wrong inputs are selected on the MX-D1.
Use the UNBAL/BAL switch to select the
correct inputs.
The MX-D1's protection system is active.
Check the speaker cables for short circuits
and correct as necessary.
A hum can be heard?
The audio pin cable connected to the
UNBALANCE jacks is not fully inserted.
Fully insert the audio pin cable.
The output sounds
unnatural, has a limited
bass range, and poor
stereo image?
The speaker polarity is wrong.
Check the polarity of the speaker
connections and correct as necessary.
MX-D1_U.fm Page 8 Thursday, June 26, 2003 5:14 PM