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Member Since 28 Jan 2011
Offline Last Active Feb 09 2015 03:09 PM

Posts I've Made

In Topic: CTS4200 Problem with Power Light Flashing

11 January 2015 - 09:06 AM

I do not know for sure (it has been a long time ago) but i believe some of the diodes that rectifies the logic supply from the SMPS transformer where in short. And blew a PCB trace. After repairing the trace and replace the 4 SMD diodes the amplifier runs like a new one.

In Topic: CTS4200 Problem with Power Light Flashing

08 January 2015 - 10:13 AM

I had a CTS600 with similar problems. The problem was a faulty logic power supply.

In Topic: XTi1002 Dead CH2

21 September 2014 - 10:35 AM

In the XTi (and offcoure DSI and CDI) 2000, 2002, 4000 and 4002 when experience defective drivers it could also be a fault in the tracker circuitry.
When the tracker FETs are short the powertransistors and driver transistors worked all on the highest voltage. Usually the driver that is located
between the two heatsinks will fail, so i think it has something to do with the rising temperature of the driver and power transistors and the driver
transistor run out of it's SOA limits.

I tought this topic was the best place to share my experience and toughts.

In Topic: Micro Tech 1200 "Supply" vs. "ODEP" LEDs?

19 September 2014 - 05:25 AM

I have seen and repaired very much Crown MicroTech amplifiers (started with the first grounded bridge amp, the MicroTech 1000) but i also never seen one with 'supply', it was always ODEP. If you can post a picture, i'm also very curious.

In Topic: Crown K2 runs very hot. Is this normal?

18 September 2014 - 04:41 PM

Hello Alain,

Thanks (again) for your input. When i disconnect the XLR signal cables or turn the gain controls fully counter clockwise
the amp goes into sleep mode on both channels. The enable led dims, and both channels are cooling down.

So i think the amp is working fine.

BTW: the K2 sounds great!