• Lenovo legion 5 płyta NM-D562 rev. 2.0 brak 1.2V

It is currently 14 December 2024, 06:32

Lenovo legion 5 płyta NM-D562 rev. 2.0 brak 1.2V

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  1. Topic title should contain: the device's manufacturer, full model and the brief description of problem.
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#1 Lenovo legion 5 płyta NM-D562 rev. 2.0 brak 1.2V

by milytuner • 5 February 2024, 14:27
Witam, laptop lenovo legion 5 15ACH6H i płyta nm-D562 rev 2.0. podstawowe napięcia na płycie obecne (3.3v, 5v, 1.8v) płyta ładuje baterię i po wciśnięciu przycisku power świeci się dioda, poza tym nic się nie dzieje, brakuje 1.2V. Procesor, grafika i ram zimne. Do PU3001 dochodzi tylko 5v. Bios przeprogramowany (bez zmian), z kbc svod3 nie chce się połączyć (ITE busy)

Re: Lenovo legion 5 płyta NM-D562 rev. 2.0 brak 1.2V

by Google Adsense [BOT] • 5 February 2024, 14:27

#2 Re: Lenovo legion 5 płyta NM-D562 rev. 2.0 brak 1.2V

by matic • 5 February 2024, 15:01
Hello!

- Measure the resistance to ground on coil PL3001.
- Measure the resistance to ground on pin 20 of chip PU3001.
- Measure the voltages to ground on pins 4, 7, 8, 10, 12, 18, 20 of chip PU3001, when the machine is turned on (power LED is turned on).

#3 Re: Lenovo legion 5 płyta NM-D562 rev. 2.0 brak 1.2V

by milytuner • 5 February 2024, 15:10
pl3001 - 43 ohm with ram and 367 without ram
pu3001 n.20 - 18 Kohm
4 - 0v
7 - 0v
8 - 0,03v
10 - 0v
12 - 5v
18 - 4,66v
20 - 0v

#4 Re: Lenovo legion 5 płyta NM-D562 rev. 2.0 brak 1.2V

by matic • 5 February 2024, 15:53
milytuner wrote:8 - 19,28v
Impossible.
Please, check your measurements again.

#5 Re: Lenovo legion 5 płyta NM-D562 rev. 2.0 brak 1.2V

by milytuner • 5 February 2024, 16:28
yes, my mistake on 8 leg is 0,03v

#6 Re: Lenovo legion 5 płyta NM-D562 rev. 2.0 brak 1.2V

by milytuner • 8 February 2024, 20:52
Czy istnieje możliwość że laptop nie wchodzi do trybu S3 przez uszkodzony KBC?

#7 Re: Lenovo legion 5 płyta NM-D562 rev. 2.0 brak 1.2V

by Machine • 9 February 2024, 12:00
Measure the voltages on pins 12, 18, 26, 70, 83, 93, 108, 119, 123, 124, 128 of KBC.
Measure the voltages on pins 86, 110 of the KBC in the following cases:
to power OFF
with power on pressed
to power "ON".

Re: Lenovo legion 5 płyta NM-D562 rev. 2.0 brak 1.2V

by Google Adsense [BOT] • 9 February 2024, 12:00
 This topic is marked as ARCHIVAL. Please only reply if your message contains the solution (Terms and Conditions p. 12.1).
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