Cambridge Audio 540A User Manual

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

)

Dimensions

(HxWxD)

mm
inches

Weight

kg
Lbs

SPECIFICATIONS

540A

640A

100W (into 4

)

65W (into 8

)

615W

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

)

50W (into 8

)

515W

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