Hello All:
I have a Panasonic Cordless Phone model KX-TG2248S on the bench. It's symptom is a flashing "E3" error code and no operation.
I have 3.3 Vcc at several test points, but near where the 6V B+ enterts the PCB, there is a transistor that looks a bit overheated, and measures a short on C, B, and E. I have not removed it from the circuit, but I am certain it is probably junction shorted. The xsistor is marked "D1758" which I think crosses to a NTE2526.
Anyhow, does anyone know what circuit this xsistor is working in (perhaps a pass transistor to a regulated circuit)?
Thanks for any advice. Take care,
Bill