Question about Behringer Pmp3000 16 Channel Audio Mixer

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10w 22rj wire wound resistor - Behringer Pmp3000 16 Channel Audio Mixer

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  • Behringer Master
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When thosse resistors (precharrging of main input filters) burn up there is major damage. The IGBT's are usually gone... replace with APT28GA60BD15... the switching regulator IR2153 is gone... one or more of the 2SA1020-Y and the 2SC2655-Y gate drivers are gone. One or both of the DL4148 speedup diodes for the IGBT gate drives will be gone. The Wirewound ceramic resistors either 10 or 22 ohm 10 watt radials... Use:
http://www.mouser.com/ProductDetail/Ohmite/TWW10J20RE/?qs=GcOFt9%2fAxQHny%252b35G6iehQ%3d%3d
This is 20 ohms, however Behringer uses from 10 to 22 ohms in these units... 20 works fine as does 10 ohms. If you have toruble getting schematic let me know.

Posted on Aug 22, 2011

  • stuart urquhart Nov 15, 2011

    Hi, have you any rough idea what it would cost to repair a problem like that? I think i have this same problem on the europower pmp5000. it also took one of my speakers out, could it be the same fault? Thanks

  • Fred Yearian Nov 16, 2011

    Sometimes only the power amp (one side goes) and power supply survives. If leds are on supply is OK... if all dark then supply is gone as well. There is a Triac protection circuit that SHOULD protect your speakers... doesn't always work. A regular shop will replace the HCA2400 power amp module and might replace the power module as well. The HCA2400 are $155 from FullCompass.com... don't know what the power supply cost however. There is around $45 of parts that fry with the failure if both are gone and a lot of labor, especially to restore the HCA2400 which often arcs between layers of the multilayer circuit board. Most shops won't attempt a repair of the HCA2400... I have done a few for my own use... it is PAINFUL work believe me. You can figure about 4 hours shop labor minimum.

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Posted on Jan 02, 2017

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DO NOT REPLACE THE FUSE !!! You will do more damage.

I just repaired one of these. A small ceramic surface mounted cap very near where the +/- 85 volt connectors plug onto the board blew up.

This left a sputtered mess on the insulating material at the right rear corner of the power supply.

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3. All four driver transistors for the gate of the IGBT's. @ each 2SA1020 (PNP) and 2SC2655 (NPN). These are tall TO92-like transistors and I believe that at least one of these I had to get from Mouser.

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