DSPXmini-FM operational manual V1.2
9
dSPXmInI-fm JumPer SettIngS
The DSPXmini-FM has several internal jumpers. To access them, you will have to lift the top cover after remov-
ing ten screws that hold it.
Setting input clip level
A pair of jumpers are located just behind analog input connectors and are used to set the input clip level
between +24dBu and +12dBu. As shipped form the factory, jumpers are set for +24dBu operation which is suit
-
able for standard, professional balanced levels. If the audio levels going to DSPXmini-FM are low and/or com-
ing from unbalanced source, you might want to set the jumpers for +12dBu operation. You can check the levels
going in DSPXmini-FM at any time by bringing up the metering screen (press the middle soft key on the front
panel). If you are unsure, leave these jumpers at factory default.
Ground lift
Ground lift jumper is located just behind Pilot Out connector. It removes circuit ground from chassis ground. If
you are experiencing hum or buzz in your audio, you might want to move this jumper to the lifted position as
indicated on the board.
Jumpers set outwards for +24dBu clip level
(factory default)
Jumpers set inwards for +12dBu clip level
Circuit ground tied to chassis ground
(factory default)
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