Lenovo IdeaPad 1 - 1-14ADA05 LS1511D 19877-1 Laptop Schematic
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Hello everyone,
I need your advice in diagnosing a motherboard issue on a Lenovo IdeaPad 3 15ITL05, motherboard HS45A/HS55A Rev 1.0 NM-D461 (2020-11-02).
Symptoms:
The laptop does not power on and does not respond to the power button.
Background:
According to the owner, her child was playing on the laptop when it suddenly shut down.
What has been done so far:
Original charger is missing; the non-original one was tested and found faulty (0 V output).
Using a lab power supply (20 V, 0.5 A) — no activity on the board, no LEDs, no standby voltages.... -
Hello. I have a Lenovo ideapad gaming 3 laptop. I did a big mistake, more precisely I powered a laptop with 61V instead of 19V. I found a shorted coil and injected 1v. TPS65993 is heating up. I powered it through the rectangular plug, not through USBC. It is possible that this integrated circuit has burned out. I can't find a datasheet. TPS65994 can be found at Mouser but I don't think it is a good replacement. This TPS65993 is PD controller.Thanks. Motherboard code is HLG30 LA-L916P. -
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