Lenovo Legion Y520-15IKBM - No power besides the main rail
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there must be some common fault on circuits with these chips. i have many of them with this fault that i cannot repair. anybody knows what often goes bad on this circuit?Last edited by ktmmotocross; 06-22-2024, 11:01 PM.Comment
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by HERETIK10Hi everyone,
I have a strange problem (for me) on an MSI GT70 2PE laptop.
When it's under heavy load, power goes steadily to the battery (for 2 or 3 seconds) then return to the charger. If I remove the battery it turns off.
The higher the load, the lower the voltage on the main rail. We go from 19.5V, PC connected to the charger but turned off (normal consumption of 0.06A)
On, when it draws 2A the voltage is 19.2V, then eventually collapses to 18.5V (and turns off) around 5A.
I removed the first 2 mosfets (PQ13 & 14) from the main rail, without noticeable change.... -
This specification for the LENOVO Legion Y520 can be useful for upgrading or repairing a desktop PC that is not working. As a community we are working through our specifications to add valuable data like the Legion Y520 boardview and Legion Y520 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for LENOVO Legion...09-12-2024, 02:30 PM
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