Troubleshooting - Marantz ST7001 User Manual

TROUBLESHOOTING

If a problem should arise, first check the following.
1. Are the connections correct?
2. Have you operated the receiver according to the operating instructions?
3. Are the speakers and other components operating properly?
If this unit is not operating properly, check the items listed in the table below. Should the problem persist, there may be a
malfunction. Disconnect the power immediately and contact your store of purchase.
Symptom
Power does not turn on when
POWER ON/STANDBY switch
is pressed.
Hissing noise is heard on FM
broadcasts.
Hissing or buzzing sound is
heard on AM broadcasts.
Booming sound (humming) is
heard in AM broadcasts.
Nothing happens when remote
control buttons are pressed.
I can not get any sound.
Display says "Station not
Available".
I can not access secondary
services.
I hear a burbling sound on
some stations.
28
Cause
• Mains cord's plug is not plugged into
wall outlet.
• Antenna cable is not properly
connected.
• Antenna is not pointing in the right
direction.
• Radio waves are weak.
• Noise from a TV or interference in
the signals sent from the broadcast
station.
• Signals transmitted over the main
cord are modulated by the power
source frequency.
• Are the batteries dead?
• Is the remote control unit too far away?
• Is there an obstacle between the
remote control unit and the main unit?
• You have pressed the wrong button.
• Batteries are not set in their proper
direction (ª and ·).
• Remote control code is different
between the main unit and remote
control.
• Rear Panel EXTERNAL/INTERNAL
switch is set EXTERNAL position.
• Power connected amplifier not turned
on.
• Ensure that DAB coverage exists in
your area.
• At the time of publishing this manual
not many secondary services are
available, this will increase as more
DAB stations start broadcasting.
• DAB like other digital media is good
at producing quality audio from a low
level signal, however if this signal,
level is too low a "burbling" sound
can sometimes be heard.
Measures
• Plug the mains cord in properly.
• Connect the leads properly.
• Point the antenna in the right direction.
• Install an outdoor antenna.
• Turn off the TV.
• Change the position of the loop
antenna.
• Install an outdoor antenna.
• Insert the plug in the opposite direction.
• Install an outdoor antenna.
• Replace the batteries with new ones.
• Operate from closer to the main unit.
• Remove the obstacle.
• Press the desired button.
• Set the batteries in the proper direction.
• Set the remote control codes of both
main unit and remote control to the
same setting.
• Set the EXTERNAL/INTERNAL
switch to INTERNAL position.
• Connection leads to amplifier not
made correctly.
• Check that antenna is connected.
• If a secondary service station is
available, the secondary indicator "<<
>>" will be displayed next to the
station name.
• Use the ST7001's "Tuning aid" while
repositioning your antenna to get the
maximum signal strength and reduce
this noise.
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