But I had a problem.
Have starecki laptop :Maxdata M-book 1200T??
When enabled, the button does not respond(with bateria without it)
The power unit is serviceable ,produces a nominal voltage 19V,
When connected to the laptop ,starts to pulse ,the sound,and the led is flashing
took a multimeter, dropped to the output power connector (three pins on the Board), and there is buffeting from 0 to 2 In total (of course between "+" and GND). The current consumption can not estimate, source cold. Accordingly, when connected to the laptop power does not turn on, the led signaling food does not burn. The laptop is silent. Source plow properly. The resistance between the positive leg of the power socket and the ground of 5.2 Ohms
Who that can advise ?
The first is to understand the problem in the power supply or the laptop (short circuit power).
Is checked or the connection of the laboratory (or known good) power supply or load current power supply a suitable load.
Further the results or change the electrolytes in the power supply or look for fault in the laptop.