Crown CE-4000 Manuel d'instructions télécharger pdf (Page 15)

CE 4000

Power Ampliﬁ er

Operation Manual

page 15

6 Troubleshooting

KEY

CONDITION: No power to the ampliﬁ er.

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. Return amp to Crown or

an authorized Crown Service Center for

servicing.

CONDITION: No sound.

POSSIBLE REASON:

• The ampliﬁ er has just been turned on and

is still in the 4-second turn-on delay.

• The ampliﬁ er is in “fault” mode. A Fault

status can be triggered when one of the

ampliﬁ er’s protection circuits is activated.

First disconnect your speakers from the

affected channel(s) one by one to deter-

mine if one of the loads is shorted. If the

indicators return to normal status, then try

a different speaker or cable to determine

where the short is occurring. If no short

can be found, turn off the amp and allow

the amp to cool. If indicators do not return

to normal after restarting your amp, check

the fuse and replace if necessary, or return

amp to Crown or an authorized Crown

Service Center for servicing.

• No input signal.

• Input signal level is very low.

• Level controls are turned down.

CONDITION: Normal operation.

POSSIBLE REASON:

• This is normal operation for your amp.

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.

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