Sony MHC-M100 - Manual (Page 50)

50
Troubleshooting (continued)
There is severe hum or noise.
• A TV or VCR is placed too close to the unit.
Move the unit away from the TV or VCR.
The sound from the connected source is
distorted.
• If “VIDEO” appears in the display when you
press FUNCTION, switch the display to
“MD” (see “Connecting a VCR” on page 47).
“0:00” (or “12:00AM”) flashes in the
display.
• A power interruption occurred. Set the clock
and timer settings again.
The timer does not function.
• Set the clock correctly.
“DAILY 1,” “DAILY 2,” and “REC” do not
appear when you press the TIMER
SELECT button.
• Set the timer correctly.
• Set the clock.
The remote does not function.
• There is an obstacle between the remote and
the unit.
• The remote is not pointing in the direction of
the system’s sensor.
• The batteries have run down. Replace the
batteries.
The color irregularity on a TV screen
persists.
• Turn off the TV set once, then turn it on after
15 to 30 minutes. If the color irregularity still
persists, place the speakers farther away from
the TV set.
Speakers
Sound comes from one channel or the left
and right volumes are unbalanced.
• Check the speaker connection and speaker
placement.
The sound comes from the center speaker
only (MHC-M500AV/M300AV only).
• The source being played back is monaural.
Press PRO LOGIC to turn off the Dolby Pro
Logic mode.
There is no sound from the center speaker
(MHC-M500AV/M300AV only).
• Set the CENTER LEVEL to the appropriate
level.
There is no sound from the rear speakers
(MHC-M500AV/M300AV only).
• Connect the left and right surround speakers
correctly.
• Set the REAR LEVEL to the appropriate
level.
• The software being played back has limited
sound effects. Check the volume with the test
tone.
Sound lacks bass.
• Check that the speaker’s + and – jacks are
connected correctly.
CD Player
The CD will not play.
• Close the front cover.
• Check if the CD is correctly inserted in the
slot.
• The CD is dirty.
• The CD is inserted with the label side facing
left.
• Moisture condensation has built up. Remove
the CD and leave the system turned on for
about an hour until the moisture evaporates.