the device doesn't power on.
i found a broken mosfet on the battery pack.
i replaced it and it works now (on another Edan SE-3).
on the power supply section misses the "Main" 5VDC voltage but if i try to send it externally the ecg try to power on for some second but then it shut down.
i need the service manual to find which ICs send the "enable" signal throgh 74hc08 to ACT4070 to complete the starting stage.
Thank you very much
