Meridian Audio 501 Troubleshooting, There is hum on the LP input, There is hum on other inputs

Troubleshooting

This section describes problems you may encounter when using the control unit, and includes suggested solutions.

If these suggestions fail to cure the problem, please contact your Meridian dealer for further assistance.

There is hum on the LP input

The LP input is the most sensitive input on the control unit.

❍Check that the tone arm is connected to the technical ground of the control unit.

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 41.

❍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.

Setting up the Control Unit

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