The laptop charger connects between the mains electric socket and the laptop, converting high voltage AC to low voltage DC. If the charger fails then the laptop battery will eventually discharge when you turn on the laptop. If the charge indicator light on the laptop does not illuminate when you connect the charger to the electric socket and the laptop, then no power is getting to the laptop and the charger might be faulty. There are usually three parts to the charger, any of which can and occasionally do fail.
Firstly check or change the fuse found inside the mains plug; depending upon which country you live in you may or may not find a fuse in the mains plug. If the fuse has failed then replace it with one of the correct type and current rating. If a fuse blows more than once then this usually indicates a fault with the charger or power cable. Whilst checking the fuse make sure that the brass screws are tight where the cables connect to the plug contact pins.
Secondly check the power cable that connects from the mains plug to the charger is not damaged. You should carefully check each end of the cable where it connects to the mains plug and the socket that connects to the charger. If you carefully bend the cable you may see where it is becoming detached from the plug or socket. You must replace the complete cable plug assembly if it is badly twisted, bulging or shows minor damage.
Thirdly check the power supply itself. If it has an indicator lamp that does not illuminate when you connect it to the mains supply, then the fault lies with the laptop charger. This can however give a false result if you connect the charger to the laptop where the laptop has a motherboard fault. So you should always test with the charger disconnected from the laptop. Many chargers do not have an indicator light or the light comes on as expected when you connect the mains power. Next take a look at the cable where it joins the low voltage connector that inserts into the laptop. It is very common for the cable to fail at this point as the user will often bend it sharply.
Sometimes when you move the cable the laptop charge lamp will momentarily come on and off. Check the cable where it comes out of the charger; this often breaks especially if you wind the lead around the body of the charger. If someone has damaged the cable either at the connector or anywhere along its length then the complete charger will need replacing as you cannot replace just the cable. Rarely, the charger itself may fail; this is difficult to diagnose this without substituting it with a replacement.
Laptop chargers do not usually fail, however, the low voltage cable and connector often fails due to the cable fracturing especially if someone has bent it sharply or wound it around the charger. So if possible you should not wind up the cables after using the laptop, but do disconnect it from the mains socket.
Graham Kelly has been repairing broken laptops for many years. From a simple power socket fault to a full motherboard fix. He is always pleased to offer repair guidance and can be contacted at Trilogic's internet site for laptop repairs or broken RAM disk.
Firstly check or change the fuse found inside the mains plug; depending upon which country you live in you may or may not find a fuse in the mains plug. If the fuse has failed then replace it with one of the correct type and current rating. If a fuse blows more than once then this usually indicates a fault with the charger or power cable. Whilst checking the fuse make sure that the brass screws are tight where the cables connect to the plug contact pins.
Secondly check the power cable that connects from the mains plug to the charger is not damaged. You should carefully check each end of the cable where it connects to the mains plug and the socket that connects to the charger. If you carefully bend the cable you may see where it is becoming detached from the plug or socket. You must replace the complete cable plug assembly if it is badly twisted, bulging or shows minor damage.
Thirdly check the power supply itself. If it has an indicator lamp that does not illuminate when you connect it to the mains supply, then the fault lies with the laptop charger. This can however give a false result if you connect the charger to the laptop where the laptop has a motherboard fault. So you should always test with the charger disconnected from the laptop. Many chargers do not have an indicator light or the light comes on as expected when you connect the mains power. Next take a look at the cable where it joins the low voltage connector that inserts into the laptop. It is very common for the cable to fail at this point as the user will often bend it sharply.
Sometimes when you move the cable the laptop charge lamp will momentarily come on and off. Check the cable where it comes out of the charger; this often breaks especially if you wind the lead around the body of the charger. If someone has damaged the cable either at the connector or anywhere along its length then the complete charger will need replacing as you cannot replace just the cable. Rarely, the charger itself may fail; this is difficult to diagnose this without substituting it with a replacement.
Laptop chargers do not usually fail, however, the low voltage cable and connector often fails due to the cable fracturing especially if someone has bent it sharply or wound it around the charger. So if possible you should not wind up the cables after using the laptop, but do disconnect it from the mains socket.
Graham Kelly has been repairing broken laptops for many years. From a simple power socket fault to a full motherboard fix. He is always pleased to offer repair guidance and can be contacted at Trilogic's internet site for laptop repairs or broken RAM disk.
No comments:
Post a Comment