How do I test my ac/dc adaptor?

[[email protected]]

Hi,
My laptop isnt charging anymore. I thought before pulling apart the
laptop to check the connection inside, I would test the adaptor.
How do I test the continuity going through the adaptor? Does it need
to be plugged in and then test voltage, or just continuity. I have a
basic multi-meter.
Thanks.

 

[Peter M. Groen]

Hi,
My laptop isnt charging anymore. I thought before pulling apart the
laptop to check the connection inside, I would test the adaptor.
How do I test the continuity going through the adaptor? Does it need
to be plugged in and then test voltage, or just continuity. I have a
basic multi-meter.
Thanks.

You could always put your Multimeter in Current Mode and put it in between
the plus-line of the adaptor and the laptop. Make sure the Max-setting of
your Multimeter is higher than the maximum output of the adaptor or else
you blow-up the fuse.

If you have something that can withstand the maximum power output of the
adapter (Resistor, Lightbulb anything) you could always hook that up.
Measuring gets a bit easier that way.

Kind regards,

Peter

 

[John Ferrell]

By all means check things out that you can.

Most Laptops that have this symptom have a problem with the charger
connection on the motherboard.

These folks have helped me in the past....
http://www.pcpartfinder.com/default.aspx

Hi,
My laptop isnt charging anymore. I thought before pulling apart the
laptop to check the connection inside, I would test the adaptor.
How do I test the continuity going through the adaptor? Does it need
to be plugged in and then test voltage, or just continuity. I have a
basic multi-meter.
Thanks.

John Ferrell W8CCW