Hi, this is in a Hifonics A3000.1D car amp. These two components come directly off the Line In RCAs. T101 and T102. I think maybe they are inductors or choke? I'm trying to source a suitable replacement. Kind of hard to see but the board is black next to both of them.
I'm trying to fix this for a friend, I can handle the soldering etc just need a part.
Thanks I appreciate any feedback or suggestions on where to look!
I'm trying to fix this for a friend, I can handle the soldering etc just need a part.
Thanks I appreciate any feedback or suggestions on where to look!
They are identified as T101 and T102. T means transformer. Note they have four legs - two in and two out. And I swear I see copper wires peeking out. It is use as a noise filter.
Why do you want to replace them? They are just wires wrapped around a common core. If you measure them as "shorted" well that is normal for wire. If they are open, as in burnt out, that suggests a lot of energy went into that RCA jack, and further damage maybe be in there.
Why do you want to replace them? They are just wires wrapped around a common core. If you measure them as "shorted" well that is normal for wire. If they are open, as in burnt out, that suggests a lot of energy went into that RCA jack, and further damage maybe be in there.
Looks like "Common mode Chokes" commonly used to filter RF noise on inputs. They may get damaged if power is run on the input jacks. They should show a small resistance from the input pair to the output pair and no connection across the input, except the 150K resistors (etc) after them.
https://www.digikey.com/en/products...=N4IgTCBcDaIMYHsC2SEDsAEqAmBTDcAFggNa4gC6AvkA
https://www.digikey.com/en/products...=N4IgTCBcDaIMYHsC2SEDsAEqAmBTDcAFggNa4gC6AvkA