Hello
I have this SSL EVO 4K with the output faulty. The amplifier, without the output transistors is in constant protection.
I have removed the driver board and the amplifier turned on well, green light.
I have reviewed the card, I have changed all the transistors MPSA92,56,42. C1027 and A1023.
I put it back on the amplifier and it's back in protection.
I have shorted the LED side A of the octo-coupler U7, it turns green, but I do not get oscillation in the output transistors.
I have rail tension +70 -70. Regulator voltage +15 -15
What can be happening?
Greetings.
I have this SSL EVO 4K with the output faulty. The amplifier, without the output transistors is in constant protection.
I have removed the driver board and the amplifier turned on well, green light.
I have reviewed the card, I have changed all the transistors MPSA92,56,42. C1027 and A1023.
I put it back on the amplifier and it's back in protection.
I have shorted the LED side A of the octo-coupler U7, it turns green, but I do not get oscillation in the output transistors.
I have rail tension +70 -70. Regulator voltage +15 -15
What can be happening?
Greetings.
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