I have dell laptop D600m. I have a charger for it but the charger does not work properly meaning that it can power the laptop but does not charge the battery of the laptop.
I opened the charger and saw the circuit of the charger and found a problem in a transistor at the end the circuit which two legs are connected but the 3rd one is free. The transistor no is Dallas 2501+0447D3+170AA. I live in peshawar Pakistan, I searched in different electronics shops but could not find anywhere.
How can I replace that transistor with some other which is available in shop easily. I bought two other chargers but after some time they had the same problem.