Arcam Delta 60 - Manual (Page 10)

Delta 60 integrated amplifier handbook
Check list
Should you have any difficulty in operating your amplifier,
check the following before suspecting that a fault has developed.
No power and LED not illuminated. Check that;
1 the mains supply is connected and that the mains lead is
fully home in the mains inlet socket at the rear of the amplifier
2 the mains is switched on and that the power switch on the
front panel is depressed and has fully latched
3 the fuse in the mains plug has not blown and that the mains
socket in the wall is live (test with another item/appliance)
Power on and LED illuminated but no output from
the amplifier. Check that;
1 the amplifier is connected to the desired input and that the
correct input on the amplifier is selected
2 the loudspeakers are connected correctly to the amplifier
3 if you have your loudspeakers connected to the outlets
marked 'Switched (SP2)', that you have also depressed the switch marked
SP2 on the front panel
4 the volume control is not set to minimuim
5 if disc is selected, that the cartridge selector switch is set to
the correct type of cartridge
NB Do not operate this switch with the volume control turned up
6 if CD is selected your machine is playing a CD
7 both speaker fuses have not been blown by a previous user
Power on and LED illuminated but output from one
loudspeaker only. Check that;
1 both loudspeakers are plugged into the correct amplifier
outlets. Note, the amplifier may appear to play in mono if the loudspeakers
are inadvertently plugged into the direct and switched outputs of one
channel
2 both the left and right channels of the selected source are
connected correctly and the input wiring is not faulty (check by swapping
over the left and right input connectors)
If in doubt contact your dealer
3 one section of the volume knob is not set to minimum
4 one speaker fuse is not blown
Loud hum heard through loudspeakers when disc is
selected. Check that;
1 the ground lead from the turntable (if fitted) is connected
firmly to the ground terminal on the rear of the amplifier
2 the amplifier is correctly earthed via the mains lead
3 your cartridge is not sited directly above your
amplifier's transformer
(Move the amplifier away and check if the hum level changes).
4 other transformers in the vicinity are not radiating into
the Delta 60
Loud hum heard through only one loudspeaker
when disc is selected. Check that;
1 The ground wire is not faulty within the respective
channel's lead. This is easily checked by swapping over the leads and
checking if the hum moves to the other channel.
2 The headshell leads connected to the cartridge on the
respective channel are not faulty or loose. If in doubt please consult
your dealer.
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