My Dell laptop battery was not charging which was later discovered that power is not going to the battery from the motherboard. AC adapter and charging port was all good. When the laptop is plug there is no power going to the battery terminals on the motherboard. The second problem is the laptop now boots into diagnosis each time I press the power button. Please can someone help me.
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Hi @babamusah
Here's a link to a free download for the motherboard schematics that may help.
You will need to have a DMM (digital multimeter) and also know how to read schematic diagrams if this is to help you find the problem.
On p.103/105 (pdf numbering) there's a block diagram of the power supplies in the laptop that may be a good place to start.
On p.44/105 it shows the charging circuitry control IC.
Hopefully this is of some help.
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