Audison bit Ten D Manual de usuario descargar pdf (Pagina 6)

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All specications subject to change without notice_12.A

The CMU also incorporates a chassis mounted speaker that lets you

hear the signal from a given input (pre-amplied, speaker, optical digital,

etc.) or from the EMS (Electro Magnetic Sniffer). In the case of unwanted

noise in the audio system, listening to the signal between various devi-

ces allows you to identify where the noise is generated.

EMS and Speaker Load Simulator: fundamental functions for the

mobile electronics specialist!

EMS - Electro-Magnetic Sniffer. Using the supplied probe and

built-in speaker, this function allows you to identify areas of the car

where electro-magnetic (radiated) noise is present, which can turn into

unwanted noise present in the audio system (alternator noise,

interferences of electronic control units, etc.). Once the “noisy” area is

detected, it is possible to avoid noise by locating cables and/or devices

away from the affected area.

Speaker Load Simulator. In recent years some manufacturers of OEM

audio systems have provided a fault detection function to check for

any speaker faults or problems with connections. In these cases, if the

speaker is disconnected from the source to connect the cables to a pro-

cessor/amplier input, the system marks a failure or, in the worst-case

scenario, blocks the source. The Speaker Load Simulator function gives

you the exibility to simulate different types of loads by connecting

the speaker cables directly to the CMU Speaker-In inputs. The CMU will

then check if the source is equipped with a fault detection system and,

possibly, what type of diagnostic it performs. By selecting one of three

available types of load (No Load, 47 ohm or Speaker Simulator), you can

identify what type of dummy load must be connected in parallel to the

processor/amplier input.

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Audison bit Ten D Manual de usuario Pagina 6