Hi,
I am local technician in coastal town in Kenya. I have a problem with my customer Yamaha powered mixer model EMX 312sc.
The problem is when I switch it on it's take about 7 to 15 seconds and it goes off.
I have tried to troubleshoot checking voltage all are okey. If I pull out the cable connecter CK415 which goes to the PA unit it is not going off when you put it on. All transistor in the powered section all are okey.
So please help me to rectified this problem.
Comments
Hi
I dont repaired this model , maybe something too hot after 7-15sec in PA unit, and processor send a protect signal to switch off power supply, find a processor's protect pin and measure do this changed to High level.
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