20 Most Recent Crown CTS4200 4-Channel Amplifier Questions & Answers

Try downloading from google.

It depends on your reference and where you are probing!

Hi, this is the schematics for you. gylacz

That amp has 2/4/8 ohm outputs along with 70v Outs. It sounds like you've hooked up an 8ohm speaker into a 70v out. check out the mfrs. links below. Good Luck!!

http://www.crownaudio.com/pdf/amps/138905-1_10-05_constant_voltage.pdf
http://www.crownaudio.com/pdf/amps/139309.pdf
http://www.crownaudio.com/amp_htm/ampinfo.htm

Hi Richard,

Does the signal/ready light up?

Jdvillanueva

Try changing the emitter resistors near the parts you've replaced. Also when you change out transistors it's a good idea to change them ALL out..The "supposedly good" ones may be badly stressed.
If the output line to the spkr relay has more than a volt on it the amp will stay in Protect

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.