Hello forum,
I got a power amp named "PhuongAnh Amplifier" model: PA 9800 which I could not find the company info in order to acquire service manual anything. The problem is that the amp looks working by seeing the light panel in front. However, there is no sound at speakers. One time in the past, the amp was playing, all of a sudden, the amp shut off itself and since then the problem came into life. I opened the cover, seeing wires everywhere. Tracking the wires from spks terminals to one of pcbs, there is a relay called "JZX 18FF" and I wonder that could this be one of the components of spks protection system, if it is, where do I start to determine that the relay went bad or any other related components in spks protection system went bad?
Gentlemen, shed some light to help solving the problem.
I got a power amp named "PhuongAnh Amplifier" model: PA 9800 which I could not find the company info in order to acquire service manual anything. The problem is that the amp looks working by seeing the light panel in front. However, there is no sound at speakers. One time in the past, the amp was playing, all of a sudden, the amp shut off itself and since then the problem came into life. I opened the cover, seeing wires everywhere. Tracking the wires from spks terminals to one of pcbs, there is a relay called "JZX 18FF" and I wonder that could this be one of the components of spks protection system, if it is, where do I start to determine that the relay went bad or any other related components in spks protection system went bad?
Gentlemen, shed some light to help solving the problem.