No power to Crown XLS 602 Amplifier

Question edited for a lot more clarity.
Question moved from Cars and Trucks Category.

Take it in for professional repair unless you have the test equipment.

https://www.google.com/search?q=Crown+XLS+2502+drive+core+repairs

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Hi Tom,

The fuse you may be referring from the power supply is not

used(none) instead a CB1 or circuit breaker is installed.

These breaker is in series with the power transformer ( trace it).


Disconnect the AC outputs of the power transformer when trying to

reset.( of course with the unit unplugged ).


Measure the output AC voltages, if it is OK

Be happy partially!


Next would be.....


Check for possible shorts on the Positive and Negative Supply

rails to ground or speaker out, for what might have caused the

breaker to tripped.


And these wont be easy troubleshooting , Good luck!!


thanks for choosing Fixya for assistance.

There are two similar circuits , use the good channel as a guide in

troubleshooting.

Radio shack

Check your input or output cables might be dirty I had the same problem
and 1 of my output wire was dirty so i sprayed tha electric cleaner and its all good now
Aloha

They use a breaker instead of a fuse.

http://www.retrevo.com/support/Crown-XLS-602-Amps-manual/id/19050ci763/t/2/

CONDITION: No

power to the amplifier.

POSSIBLE REASON:

• The amplifier's Power switch is off.

• The amplifier is not plugged into the power receptacle.

• The amplifier's high-voltage power supply circuit breaker has tripped. Verify that the AC mains

voltage is correct, then press the Circuit Breaker button on the back panel.

Take it to the ER.

From what I know about these and after checking the schema , I would say that a thermal fuse in the main AC transformer is open.
If this helps, please rate my help
Thanks, Scott

Lots of electronics have lights (LEDs) that turn on when they are plugged it. Most people just don't notice them. If it is working properly, then the light is normal.

Hi try disconnecting the speaker outs and turn off bridge (if its on) If it doesnt work still, then suggest direct to a crown agent. The amp has a 3 year no fault warranty. Hopefully its still in!

All the best