I've encountered a problem while replacing the AC transformer of a soundsystem composed by 3 loudspeakers (1 bass loudspeaker (4Ω5W) and a couple of highs(can't open to see the specs of these)) and a board which includes an amplifier (glued to a heatsink so I can't see its specs). The problem is that the broken transformer is a Chinese component without any relevant information that tells me its output voltage and I wasn't able to find anything on it on the Internet.
The transformer has a sticker that says exactly:
Input Voltage: AC 220V/50Hz-60Hz
NenYang (ShenZhen) Industrial Co., LTD.
I've only had some luck looking for E1-41x20.5 but nothing conclusive.
Anybody knows a similar transformer or how to get to know the output power? Or how to find out which voltage should the board receive? (there are capacitors with a 16V mark)
The transformer is broken and it won't give me an output current if I give it the input current, so I can't just measure the output current.
Thanks for reading and I can provide more details of the circuit board if needed!
Edit: I can measure the total resistance of the thing obtaining 5.8MΩ