Cambridge Audio Azur 640A - Manual (Page 14)

14
There iis nno ppower
Ensure the AC power cord is connected securely.
Ensure the plug is fully inserted into the wall socket and is switched on.
Check fuse in the mains plug or adaptor
There iis nno ssound
Make sure the unit is not in Standby mode
Check that source component is properly connected
Check that 'TAPE MON' is not switched on (unless tape input is required)
Check that your speakers are properly connected
If using Speaker B terminals check they are switched on
If channel LED is flashing turn mute off
There iis nno ssound oon oone cchannel
Ensure that balance control is in the correct position
Check speaker connections
Check interconnects
There iis aa lloud bbuzz oor hhum
Check turntable or tone arm for ground and connection lead fault
Ensure no interconnects are loose or defective
Ensure that your tape deck/turntable is not too close to the amplifier
Unable tto m make oor pplay ttape rrecordings
Check that TAPE MON and TAPE OUT have been connected correctly
There iis w weak bbass oor ddiffused sstereo iimaging
Ensure that speakers are not wired out of phase
Will nnot sswitch oout oof sstandby - pprotection LLED flashing
Please see section on CAP5 protection system
Protection LLED flashing
Please see section on CAP5 protection system (page 12)
TROUBLESHOOTING
Power O Output
Max PPower
Consumption
Standby PPower
Consumption
THD (unweighted)
Freq R Response (-3 3dB)
S tto N N R Ratio (unweighted)
Slew R Rate (into 8 8 Ω Ω )
Dimensions (HxWxD)
mm
inches
Weight
kg
Lbs
SPECIFICATIONS
540A 640A
100W (into 4 Ω )
65W (into 8 Ω )
615W
6W
1kHz < 0.005%
20kHz < 0.07%
4Hz - 80kHz
92dB
50V/uS
100 x 430 x 310
3.9 x 16.9 x 12.2
7
15.4
75W (into 4 Ω )
50W (into 8 Ω )
515W
6W
1kHz < 0.009%
20kHz < 0.09%
5Hz - 50kHz
92dB
30V/uS
100 x 430 x 310
3.9 x 16.9 x 12.2
7
15.4