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Member Since 28 Jan 2011
Offline Last Active Aug 10 2014 04:17 AM

Posts I've Made

In Topic: Amps compressing after 6 hours

07 August 2014 - 07:13 AM

The lo line message indicate there could be something wrong with the AC power. Have you allready try to connect one or both amps to a different AC source?

Maybe the AC wiring is to thin, it runs hot (after the 6 a 7 hours) and the resistance is getting higher?
Or maybe you have another device running at the same group that draws excessive power away from the AC source?
I also own 2 CDi1000 amplifiers but never seen this behaviour before.

In Topic: XLS5000 Service Manual

05 August 2014 - 03:58 AM

You can send an email to the Crown Technical department, the usualy send the schematics to you.

In Topic: ITech 12000HD issues

02 August 2014 - 01:30 PM

Hello Kasey,

The SMPS is the power supply, its the units that converts the AC outlet voltage to the voltages the ampifier needs to work. The sensor or sensors are located near by the heatsink, or mounted on it.

But please be carefull,there are several high voltages present that can cause serious injury! Please verify that all the capacitors (especially at the primary side) are been discarged,or discharge them by yourself with a resistor. Good luck!

In Topic: Loud 'bang' heardible from channel A when turning on XTi4000

30 July 2014 - 09:44 AM

Hello Alain,

Yes, i'm very happy that i was able to solve this problem!
But i'm also happy that your the one that was answerring my questions because
reading some of your posts it looks to me that your also know what your doing!

I'm familiar with the front PCB's with defective ribbon cable connectors.

I was one of the first here in Holland that whas buying a Crown XTi amplifier and the three
common failures where the connection from heatsink to PCB, the ribbon cable and the firmware.
The first one i solved to make a connection (with a wire) to heatsink and PCB, the second i solved to
replace the whole ribbon cable with connectors for a better one. But i guess that you found these
modifications allready by yourself ;). The last one was waiting patiently for upgrades ;).

And i love the XTi and CDi (and i think the DSi, never worked with them) amplifiers. They sounded great,
are lightweight and i use them very often. Okay, they do not provide the 'punch' like the 'old school'
Macrotech amplifies did (they simply blow everything away with every size speaker) but i like them.

Even with a added DSP, they are very servicable and repairable for this kind of amplifiers.
No tricky class D amplifier but still an 'analog' amplifier with SMPS.
Also the DSP is not very hard to repair. I have the tools and skills to replace the LPC2142 chip,
and then its easy. Provide the LPC with new firmware is also very easy!

Love this amplifier, thats for sure! Thank you all!

(And sorry for bad English)

In Topic: Loud 'bang' heardible from channel A when turning on XTi4000

28 July 2014 - 05:58 PM

Hello Alain,

Today i found the time to test and replace the AD/DA converter.

Looks like this has solved the problem!

Thank you for helping me! f