Hello,
I have an LCD TV power board IP-58155A.
I'd like help identifying a component on it. What may it be? It looks a bit like a germanium diode, it's marked SA101 on the board and has a symbol of a resistor on the underside of the board. It's connected in parallel with one coil of the power filter inductor.
And here's the underside:
The other component I'm interested in is a small transformer on the inverter side. What is the function of it? How does it work? I figure it's there for feedback purposes, but I don't get how it works. There are two of them on the opposite sides of the board. Marked T304 and T305, transformers are BL-25.
CCFL connections have two cables with two wires each. One wire goes straight to the big inverter transformer (which has failed in my case - resistance of two HV windings is different). Another wire goes to the small transformer. Why?
I have an LCD TV power board IP-58155A.
I'd like help identifying a component on it. What may it be? It looks a bit like a germanium diode, it's marked SA101 on the board and has a symbol of a resistor on the underside of the board. It's connected in parallel with one coil of the power filter inductor.
And here's the underside:
The other component I'm interested in is a small transformer on the inverter side. What is the function of it? How does it work? I figure it's there for feedback purposes, but I don't get how it works. There are two of them on the opposite sides of the board. Marked T304 and T305, transformers are BL-25.
CCFL connections have two cables with two wires each. One wire goes straight to the big inverter transformer (which has failed in my case - resistance of two HV windings is different). Another wire goes to the small transformer. Why?