Troubleshooting - Arcam FMJ P777 Manuel

trouble-
shooting
no lights on the unit
Check that:
the power cord is plugged into the P777 and the
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mains socket outlet it is plugged into is switched
on.
the plug fuse has not failed, or a circuit-breaker
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earlier in the power supply path has not opened.
the power button is pressed in.
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Red led present
Refer to the 'Fault status indicators' table (overleaf) if
you have an unusual sequence of LEDs.
no sound is produced
Check that:
the correct input has been selected on the pre-
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amplifier.
you have assigned the digital input to the correct
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input source.
the volume is turned up to a reasonable level and
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'MUTE' is not displayed on the front panel display
on the pre-amplifier.
your power amplifier(s) are turned on and
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working correctly.
Sound is poor and badly distorted
Check that:
all cables are making a good connection. If
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necessary withdraw the cable from the connector
and plug it back in again. (Turn the power off
before doing this.)
you have selected the correct size of speakers
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to suit your system in the setup menu of the
processor or pre-amp.
Sound only comes from some of the speakers
Check that:
all speakers in the system are connected to the
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P777.
you have configured your pre-amp to include all
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the speakers in your system.
you have an appropriate surround sound source
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selected and playing through the pre-amp.
for digital sources, check the player is outputting
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multichannel data. With some DVD players you
are able to select in what format multi-format
encoded discs are outputted, and whether
multichannel data is down-mixed to PCM
(stereo).
the disc you are playing is a multichannel
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recording and that the processor is outputting
multichannel audio.
your speaker balance is correct.
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all amplifiers are turned on and all channels are
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working correctly.
all units are turned on. If the audio is 'daisy-
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chained' from the P777, make sure that the unit
being fed is turned on.
Hum on an amplifier output
Check that:
all cables are making a good connection. If
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necessary withdraw the cable from the connector
and plug it back in again. (Turn the power off
before doing this.)
if the hum originates from a ground loop caused
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by an aerial, satellite dish or cable supply, you
should contact your aerial contractor.
e-9
the signal (interconnect) leads are not wrapped
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around a mains lead.
try switching the ground lift on the back panel of
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the processor (if available).
There is radio/television reception
interference
The P777 has been designed to a very high standards of
electromagnetic compatibility.
Check that:
the aerial/dish cable is routed as far as possible
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from your amplifier and its cabling.
the cabling used from the aerial/dish is of high
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quality and screened.
repositioning the receiving aerial/dish as far as
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possible from your amplifier and its cabling may
bring an improvement.
if the problem persists, contact your aerial
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contractor.
you are using high quality screened audio cable
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between your equipment and that no cables are
broken or damaged.