Troubleshooting

Troubleshooting and maintenance

56

No lights are displayed when switching on

❍Check that your AC power supply is connected correctly.

❍Check that the ON OFF switch on the rear panel is in the ON position.

❍Check that the fuse on the control unit rear panel and the fuse in the unit’s power plug have not blown; see To change the mains fuse, page 58.

There is hum on the LP input

The LP input is the most sensitive input on the surround controller.

❍Check that the tone arm is connected to the technical ground of the surround controller.

❍Check that the tone arm is connected to the power ground in the turntable.

❍If you are using a magnetic pickup, check that there is not another piece of equipment too near to the turntable or the left-hand side of the control unit. If so, re-position the equipment to cure the problem.

There is hum on other inputs

❍Check your other equipment.

❍Consult your dealer.

There is interference on the radio and/ or television when the surround controller is switched on

Before following the steps below, ensure all units are switched off.

If this equipment does cause or suffer from interference to/from radio or television reception then the following measures should be tried:

❍Reorient the receiving aerial (or antenna) or route the antenna cable of the receiver as far as possible from the surround controller and its cabling.

❍Ensure that the receiver uses well-screened antenna cable.

❍Relocate the receiver with respect to the control unit.

❍Connect the receiver and this product to different AC outlets.