If you know which component is the problem but can’t identify it (burnt out etc) then here’s the [https://www.alisaler.com/dell-latitude-e7440-compal-la-9591p-rev0-4-schematics/|schematic] for the motherboard.
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If you know which component is the problem but can’t read its markings (burnt out etc) then here’s the [link|https://www.alisaler.com/dell-latitude-e7440-compal-la-9591p-rev0-4-schematics/|schematic] for the motherboard.
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Use the component’s board designation and find it in the schematic to find out what type of component it is and its values etc. The search online for a replacement etc.[br]
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If you don’t know which component is faulty then you will have to start at the beginning. For example, with the charger connected is the laptop indicating that power is connected? If not, then why not? Is the DC-In jack OK etc? If so, are the various power regulators OK etc?
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Use the component’s board designation and find it in the schematic to find out what type of component it is and its values etc. Then search online for a replacement part using the information etc.[br]
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If you don’t know which component is faulty then you will have to start at the beginning. For example, with the charger connected is the laptop indicating that power is connected? If not, then why not? Is the DC-In jack OK etc? If so, are the various power regulators OK and so on etc?
You will need to know how to read schematic diagrams and also how to use a DMM (digital multimeter) to hopefully find out what’s wrong.
Alternatively, contact a reputable, professional laptop repair service and ask for a quote.
Hi @zerobuss ,
If you know which component is the problem but can’t identify it (burnt out etc) then here’s the [https://www.alisaler.com/dell-latitude-e7440-compal-la-9591p-rev0-4-schematics/|schematic] for the motherboard.
Use the component’s board designation and find it in the schematic to find out what type of component it is and its values etc. The search online for a replacement etc.[br]
If you don’t know which component is faulty then you will have to start at the beginning. For example, with the charger connected is the laptop indicating that power is connected? If not, then why not? Is the DC-In jack OK etc? If so, are the various power regulators OK etc?
You will need to know how to read schematic diagrams and also how to use a DMM (digital multimeter) to hopefully find out what’s wrong.
Alternatively, contact a reputable, professional laptop repair service and ask for a quote.