Behringuer europower pmp5000 switches off problem

SOURCE: My Behringer Europower Pmp5000 Powered Mixer blew

Probably the channel A went. If you are fortunate, the power supply is still OK. There are protection circuits for the speakers, however you MUST use speakers that are rated at over 400 Watts. If you use smaller ones, they can get blown. There is a weakness primarily on insulation for channel A and an arc between layers of a circuit board can wipe out several transistors and a zener diode and sometimes a metering resistor. Once this happens, have unit serviced before using it again as further damage can result.
ALSO PLEASE read my tip I posted on FIXYA regarding a grounding hazard when using Speakon to 1/4 inch speaker cables... essentially the barrel of the 1/4 inch jack of the A channel is the hot lead, NOT the tip for that channel.

SOURCE: How do i hook up

You use special "insert cables" to insert the EQ into the path from teh mixer to the power amps. Thee cables have three 1/4 inch jacks and are a Wye type cable that connect the TIP of the TRS jack to the TIP of the plug to be plugged into the OUTPUT of the EQ channel. A second cable ties teh RING of the insdert jack into the TIP of a plug that lugs in the INPUT of the EQ. You need two of these special cables for stereo operation.