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Yamaha M-35 Owner's Manual page 9

Natural sound 2/4 channel power amplifier
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Power cannot be turned ON by
pressing the POWER switch.
Sound is not heard at all.
Sound is not produced from the front
and/or rear speakers or left and/or
ight speakers.
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The balance between the left and
right cannot be adjusted in the
4 CH operation.
The acoustic image is unstable, with
unnatural sound lacking bass tone.
Hum noise is heard from the speakers.
® The power plug is not connected securely to the
power outlet.
The SPEAKERS switch is OFF.
The SPEAKER LEVEL controls are in the fully -2
positions.
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Pin plugs are not connected securely to the
INPUT jacks.
Speakers are not connected properly to the amplifier.
Speakers are not connected properly to the amplifier.
One of the SPEAKER LEVEL controls is in the fully
counterclockwise position.
The 2 CH/4 CH SELECTOR switch is not set
correctly.
In the 4 CH operation, the left and right balance
cannot be adjusted from the M-35 power amplifier.
The phases (+ &-—) of the amplifier and speakers
are not matched.
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è Pin plugs are not connected properly.
Insert the power plug securely into the power outlet.
Press the SPEAKERS switch to ON.
Turn the SPEAKER LEVEL controls clockwise.
Insert the pin plugs securely into the jacks.
Check the connection,
Check the connection.
Turn the SPEAKER LEVEL control clockwise.
Set the 2 CH/4 CH SELECTOR switch correctly.
Adjust the left and right balance from the control amplifier.
Connect the speakers to the amplifier again by matching
the phases (+ &-).
Insert the pin plugs securely into the jacks.

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