Strange failure on AMCRON 5000VZ
Posted 15 March 2013 - 11:54 AM
After opened and inspected, I saw what you see on pictures, foil connection between output module and binding post outpouts, shortcircuited and melted...
I have mounted new output devices MJ21193 and MJ21194 (carefully matched), I replaced burnt foil connection on both channels, with wires, with double isolation (thermocontractil tube above official wire isolation), recalibrated from manual service, the amp works FLAWLESS.
This is the first time when I fix of that kind of failure...
Posted 15 March 2013 - 11:55 AM
Posted 18 March 2013 - 03:05 PM
Posted 25 March 2013 - 08:47 AM
Posted 26 March 2013 - 03:43 PM
Posted 02 May 2013 - 05:29 PM
It was just flexi cable failure, between foils, no one touched chassis or any other internal parts.
Could be an isolation failure, also for me, is the first time when I found that foil burnt...
It could happen, also after so much years of using.
Anyway, for me, the Macrotech 5000VZ is the most advanced class AB+B amplifier, ever made by Crown.
Oldschool, heavy like mountain, but very powerfull and nice-clean sound.
I fix all of them with happiness, because I love them!
If I was in USA (I'm Romanian), I already had repair shop oldschool CROWN amplifiers...
Posted 03 May 2013 - 06:44 PM
I'm coming to USA!