Crown XLS202 2Channel Amplifier - Answered Questions & Fixed issues

This sounds like a power supply issue. Could be that a capacitor is playing up, but only on that channel. Voltage checks on the good channel and then the bad will show where the problem lies.

It sounds like speakers are loading down internal DSP - contact any Guitar Center and ask one of their techs for sure. Double check your speaker connections also.

try checking the impendance of the speaker connection also do make sure that the speaker cables are not short circuited.
do make a check that you are not overloading the amplifier if everything's all right then the fuse has blown out
you need to replace the fuse with the same rating and your amplifier will work

There is a "driver" stage that sets up the voltages for the output stage as well as a bias circuit. Any of these can have a problem. I would suggest that you take voltage readings at each of the output transistor pins and post the readings here. I might be able to give you a few things to check. Crown designs are not the simplest to diagnose, but we should be able to track it down a bit. Measure each of the pins to gound and post the values here.

Thanks,
Dan

you may have to pull it out over again, all of them on the channel where you replaced the power

transistor.


Or you can check for possible shorted collector to emitter pins on each.


Once these power transistors are extracted all in pairs then you can power up ,

just to test if the fuse will still blow.


If it happens , you might have a bad components likewise on the other channel


I will post further if the fuse does not blow anymore to help you finished

your troubleshooting.



Insure that the supply rails have no shorted components along its path.

Check for DC out on all amp outputs and post

I would study the service manual and service notes to find out why the temperature sensors do not work. Probably a supply rail down I would think to affect both of them.

The Power Crown XTi 6000 is a power amplifier, and it sounds like it is activating its protection circuit and not generating a Pulse Width Modulation (PWM) signal. There could be a few different reasons for this behavior. Some possible causes include:

• Overheating: The amplifier could be overheating, causing the protection circuit to activate in order to prevent damage.
• Short circuit: There could be a short circuit in the amplifier, causing the protection circuit to activate.
• Input signal issue: The input signal to the amplifier could be causing the protection circuit to activate. This could be due to a problem with the source, such as a malfunctioning mixer or a disconnected cable.
• Output impedance or load mismatch: The amplifier may have a mismatch in output impedance or the load impedance which can cause the protection circuit to activate.
• Firmware or software issue : There could be a problem with the firmware or software that controls the amplifier, causing the protection circuit to activate.

Without more information, it's difficult to say for certain what the problem is. It's recommended to check the manual for troubleshooting steps and also check for any possible firmware updates. If problem persist it's recommended to take professional help.

Not most service manuals can be downloaded unless you use a model close to the original. Try service manuals.com

Google should have a manual for your 1000 amp thermal and also try on the companies official website too for a manual. Try searching on YouTube as well and YouTube should have videos about amp thermal on - Crown Audio Players & Recorders

http://www.fixya.com/tags/crown_amplifier_fault

Probable power transistor failure.

If you have eliminated any shorted speakers, cables etc, then the only other cause is a shorted device on the power output board. Probably a device on the heatsink.

Hello, Sylvia - I have no idea what entity you meant to receive your question. You posted in the Fixya.com website, which is intended for asking and answering questions on how to go about REPAIRING THINGS. Plus, your question landed in the Fixya category for Crown (brand) Audio Players & Recorders. Perhaps you meant to message Netflix, or your local public library, or a person from whom you borrowed the DVD, or someone to whom you sold the DVD, or . . . Best wishes.

Is the fan supposed to be on. On some units it runs all the time on others when the temp hits a certail level. Which is it for your baby?

It's best to assume there is a short circuit in the power amp board. The unit is going in to protect mode to stop it blowing fuses etc. Could be caused by bad speaker wiring or connections by the way.

Component over heating . Main input output ic defective.

Do you mean that you would like to change from a 3 wire cannon plug to a 1/4" female?

Replace/repair fan.

That is a subjective statement. You need to measure the SPL at the speaker and check against the specs and also measure the power from the amp to have the data to check and compare with. That will give you an objective answer. You could have lost part of your hearing, I do not know!

I would suggest you take it to your local Crown repair depot. It sounds like a fault in the internal protection circuits or the outputs are blown. Without a lot more information I cannot help.