gfunk

Members
  • Content count

    4
  • Joined

  • Last visited

Community Reputation

0 Neutral

About gfunk

  1. I am the sound system manager of BRALIMA, the biggest brewelry, subsidiary of HEINEKEN, in the Democratic Republic of Congo. We bought 17 CROWN IT 4000 in south africa. I have a problem with the final stage : few mosfet burned and 2 small board attached to them have components burned. I want to know the exact name of those 2 boards (It looks like the drivers of the Mosfet are inside) and It is crucial for me to get the schematic diagram of the CROWN IT4000 because I cannot send all the time my amplifiers in South Africa, because It is to costly and I am myself an Engineer in electronics who knows about that class of amplifiers.
  2. YES WE TRIED TO TURN DOWN THE VOLUME CONTROLS ON THE AMPLIFIERS BUT NOT QUICK ENOUGH AND WE WERE USING 16 CROWN IT4000 AMPLIFIERS AT THE SAME TIME AND 1 CROWN XS-1200 FOR THE SIDEFILL ON A 50 KVA GENERATOR . SOME IT4000 WERE WORKING WITH JBL SRX 722 SPEAKERS AND SOME OTHER WITH SOME JBL SRX728 SPEAKERS
  3. SOMEONE CAN HELP ME OUT WITH XS-1200 SCHEMATIC DIAGRAM. I HAVE 2 THAT I SUSPECT TO HAVE ALSO A FAULTY POWER SUPPLY PROBLEM. IF A REMEMBER, BECAUSE THOSE AMPLIFIERS BELONG TO THE COMPANY i'M WORKING FOR, THE POWER LIGHT IN FRONT IS FLASHING. IF SOMEONE KNOW THE REAL MEANING OF THIS BEHAVIOUR, TELL ME WHAT YOU THINK. GFUNG
  4. I HAVE IT4000 AMPLIFIERS WITH PROBLEMS. WHERE PLS CAN I GET A SCHEMATIC DIAGRAM OF THAT AMPLIFIER. IT IS IMPORTANT FOR ME BECAUSE I BOUGHT 19 IT4000 AMPLIFERS AND I HAVE 6 FAULTY ONE AFTER A BAD ENGINEER HAS USED MY SYSTEM AND USED IT AT +10 DB FOR SEVERAL HOURS ON A BAD POWER GENERATOR BECAUSE IN CONGO THE POWER IS NOT GOOD. SO, SOME HAVE POWER SUPPLY PROBLEM AND SOME OTHER HAVE FINAL STAGE PROBLEMS.