Crown Audio CP660 operation manual Troubleshooting, This is normal operation for your amp

Page 12

CP660 Power Amplifier

5 Troubleshooting

CONDITION: Normal operation.

POSSIBLE REASON:

• This is normal operation for your amp.

CONDITION: No power to the amplifier.

POSSIBLE REASON:

The amplifi er’s “power” switch is off.

The amplifi er is not plugged into the power receptacle.

The amplifi er’s high-voltage power supply fuse has blown. Fuse NOT user-replace- able. Return amp to Crown or an authorized Crown Service Center for servicing.

CONDITION: Distorted sound.

POSSIBLE REASON:

Input signal level is too high. Turn down your amplifi er level controls. NOTE: Your

amplifi er should never be operated at a level which causes the Clip LEDs to illuminate constantly.

OR

• Amplifer is too hot. Turn down input signal level to allow ampifi er to return to normal operating temperature. Check speaker loads for short-circuits or too low impedance level.

CONDITION: No sound.

POSSIBLE REASON:

• The amplifi er has just been turned on and is still in the 4-second turn-on delay.

• No input signal.

Input signal level is very low.

Level controls are turned down.

Speakers not connected.

KEY

Note: For further assistance with trou- bleshooting your amplifier, consult the Crown Amplifier Application Guide, available from the Crown website at www.crownaudio.com, or contact the Crown Technical Support Group.

page 12

Operation Manual

Image 12
Contents CP660 Some models may be exported under the name AmcronImportant Safety Instructions Magnetic FieldSafety Standard Crown International, IncEuropean Representative’s Name and Address Family Name CP Family Model Names CP660 EMC StandardsTable of Contents How to Use This Manual FeaturesWelcome Channels into 4-ohm loadsSetup You may also stack amps without using a cabinetInstall Your Amplifier Unpack Your AmplifierDistance Wire Your System 3.6.1 Stereo Mode Bridge-Mono ModeSetup Operation Startup ProcedureTurn up the level of your audio source to an optimum level Connect to AC MainsTemp Indicator Clip IndicatorsPower Switch Power IndicatorDual/Mono Switch Power CordLevel Controls Rotary level controls, one per channelTroubleshooting This is normal operation for your ampSpecifications Dimensions Width GeneralTurn On VentilationService Warranty YearWorldwide Except USA & Canada This page intentionally left blank Crown Factory Service Information Model