If the laptop doesn't give any indication that the battery is charging when the charger is connected, first check that the charger is supplying 19.5V DC at the charger's plug. If not replace the charger.
If the charger is OK then perhaps there a problem with the laptop's [link|https://www.parts-people.com/index.php?action=category&id=140&subid=355&refine=dc+power+jack|DC-In jack], (supplier example only).
What can happen is that the centre +ve pin of the jack breaks internally and this opens the power path from the charger to the motherboard so that the battery can't be charged and eventually goes flat and the motherboard can't operate on the charger power.
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You will need to dis-assemble the laptop to gain access to the DC-In kjack and disconnect it from the motherboard and then use an Ohmmeter to test the +ve and -ve legs of the power path from the input side of the Dc-In jack to the red and black wires of the cable plug connected to the output side of the jack.
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You will need to dis-assemble the laptop to gain access to the DC-In jack and disconnect it from the motherboard and then use an Ohmmeter to test the +ve and -ve legs of the power path from the input side of the DC-In jack to the red and black wires of the cable plug connected to the output side of the jack.
If the jack is faulty it cannot be repaired, it has to be replaced. Search online using the appropriate to your particular version E6420 laptop (either Nvidia -J90M8 or Intel -CJ28J video) Dell part number for the jack as seen in the example above to find suppliers that suit you best.
Here's the [link|https://downloads.dell.com/manuals/all-products/esuprt_laptop/esuprt_latitude_laptop/latitude-e6420_owner%27s%20manual_en-us.pdf|service manual] that will help. Go to p.100 to view the procedure to remove/replace the DC-In port (aka DC-In jack)
If the laptop doesn't give any indication that the battery is charging when the charger is connected, first check that the charger is supplying 19.5V DC at the charger's plug. If not replace the charger.
If the charger is OK then perhaps there a problem with the laptop's [link|https://www.parts-people.com/index.php?action=category&id=140&subid=355&refine=dc+power+jack|DC-In jack], (supplier example only).
-
What can happen is that the centre +ve pin of the jack breaks internally and this opens the power path from the charger to the motherboard so that the battery can't be charged and eventually go flat and the motherboard can't operate on the charger power alone.
+
What can happen is that the centre +ve pin of the jack breaks internally and this opens the power path from the charger to the motherboard so that the battery can't be charged and eventually goes flat and the motherboard can't operate on the charger power.
You will need to dis-assemble the laptop to gain access to the DC-In kjack and disconnect it from the motherboard and then use an Ohmmeter to test the +ve and -ve legs of the power path from the input side of the Dc-In jack to the red and black wires of the cable plug connected to the output side of the jack.
If the jack is faulty it cannot be repaired, it has to be replaced. Search online using the appropriate to your particular version E6420 laptop (either Nvidia -J90M8 or Intel -CJ28J video) Dell part number for the jack as seen in the example above to find suppliers that suit you best.
-
Here's the [https://downloads.dell.com/manuals/all-products/esuprt_laptop/esuprt_latitude_laptop/latitude-e6420_owner%27s%20manual_en-us.pdf|service manual] that will help. Go to p.100 to view the procedure to remove/replace the DC-In port (aka DC-In jack)
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Here's the [link|https://downloads.dell.com/manuals/all-products/esuprt_laptop/esuprt_latitude_laptop/latitude-e6420_owner%27s%20manual_en-us.pdf|service manual] that will help. Go to p.100 to view the procedure to remove/replace the DC-In port (aka DC-In jack)
If the laptop doesn't give any indication that the battery is charging when the charger is connected, first check that the charger is supplying 19.5V DC at the charger's plug. If not replace the charger.
If the charger is OK then perhaps there a problem with the laptop's [link|https://www.parts-people.com/index.php?action=category&id=140&subid=355&refine=dc+power+jack|DC-In jack], (supplier example only).
What can happen is that the centre +ve pin of the jack breaks internally and this opens the power path from the charger to the motherboard so that the battery can't be charged and eventually go flat and the motherboard can't operate on the charger power alone.
You will need to dis-assemble the laptop to gain access to the DC-In kjack and disconnect it from the motherboard and then use an Ohmmeter to test the +ve and -ve legs of the power path from the input side of the Dc-In jack to the red and black wires of the cable plug connected to the output side of the jack.
If the jack is faulty it cannot be repaired, it has to be replaced. Search online using the appropriate to your particular version E6420 laptop (either Nvidia -J90M8 or Intel -CJ28J video) Dell part number for the jack as seen in the example above to find suppliers that suit you best.
-
Here's the https://downloads.dell.com/manuals/all-products/esuprt_laptop/esuprt_latitude_laptop/latitude-e6420_owner%27s%20manual_en-us.pdf|service manual] that will help. Go to p.100 to view the procedure to remove/replace the DC-In port (aka DC-In jack)
+
Here's the [https://downloads.dell.com/manuals/all-products/esuprt_laptop/esuprt_latitude_laptop/latitude-e6420_owner%27s%20manual_en-us.pdf|service manual] that will help. Go to p.100 to view the procedure to remove/replace the DC-In port (aka DC-In jack)
If the laptop doesn't give any indication that the battery is charging, first check that the charger is supplying 19.5V DC at the charger plug.
+
If the laptop doesn't give any indication that the battery is charging when the charger is connected, first check that the charger is supplying 19.5V DC at the charger's plug. If not replace the charger.
-
If the charger is OK then perhaps there a problem with the laptop's [https://www.parts-people.com/index.php?action=category&id=140&subid=355&refine=dc+power+jack|DC-In jack], (supplier example only).
+
If the charger is OK then perhaps there a problem with the laptop's [link|https://www.parts-people.com/index.php?action=category&id=140&subid=355&refine=dc+power+jack|DC-In jack], (supplier example only).
What can happen is that the centre +ve pin of the jack breaks internally and this opens the power path from the charger to the motherboard so that the battery can't be charged and eventually go flat and the motherboard can't operate on the charger power alone.
You will need to dis-assemble the laptop to gain access to the DC-In kjack and disconnect it from the motherboard and then use an Ohmmeter to test the +ve and -ve legs of the power path from the input side of the Dc-In jack to the red and black wires of the cable plug connected to the output side of the jack.
If the jack is faulty it cannot be repaired, it has to be replaced. Search online using the appropriate to your particular version E6420 laptop (either Nvidia -J90M8 or Intel -CJ28J video) Dell part number for the jack as seen in the example above to find suppliers that suit you best.
Here's the https://downloads.dell.com/manuals/all-products/esuprt_laptop/esuprt_latitude_laptop/latitude-e6420_owner%27s%20manual_en-us.pdf|service manual] that will help. Go to p.100 to view the procedure to remove/replace the DC-In port (aka DC-In jack)
Hi @Joe Joest ,
If the laptop doesn't give any indication that the battery is charging, first check that the charger is supplying 19.5V DC at the charger plug.
If the charger is OK then perhaps there a problem with the laptop's [https://www.parts-people.com/index.php?action=category&id=140&subid=355&refine=dc+power+jack|DC-In jack], (supplier example only).
What can happen is that the centre +ve pin of the jack breaks internally and this opens the power path from the charger to the motherboard so that the battery can't be charged and eventually go flat and the motherboard can't operate on the charger power alone.
You will need to dis-assemble the laptop to gain access to the DC-In kjack and disconnect it from the motherboard and then use an Ohmmeter to test the +ve and -ve legs of the power path from the input side of the Dc-In jack to the red and black wires of the cable plug connected to the output side of the jack.
If the jack is faulty it cannot be repaired, it has to be replaced. Search online using the appropriate to your particular version E6420 laptop (either Nvidia -J90M8 or Intel -CJ28J video) Dell part number for the jack as seen in the example above to find suppliers that suit you best.
Here's the https://downloads.dell.com/manuals/all-products/esuprt_laptop/esuprt_latitude_laptop/latitude-e6420_owner%27s%20manual_en-us.pdf|service manual] that will help. Go to p.100 to view the procedure to remove/replace the DC-In port (aka DC-In jack)