Kramer-electronics VM-1610 Manual de usuario descargar pdf (Pagina 15)

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Problem Remedy

Low frequency hum in

the output signal

60Hz hum (ground loop) is caused by a difference in the ground

potential of any two or more devices connected to your signal path. This

difference is compensated by passing that voltage difference through any

available interconnection, including your audio cables.

WARNING!

DO NOT DISCONNECT THE GROUND

FROM ANY PIECE OF AUDIO

EQUIPMENT IN YOUR SIGNAL PATH!

Check the following to remove ground loops:

1. Confirm that all interconnected equipment is connected to the same

phase of power, if possible.

2. Remove equipment connected to that phase that may introduce noise,

such as motors, generators, etc.

3. Disconnect all cables and reconnect them one at a time until the ground

loop reappears. Disconnect the affected cable and replace, or insert an

isolation device (opto isolator or transformer) in the signal path.

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Kramer-electronics VM-1610 Manual de usuario Pagina 15