• Lenovo Legion Y530 (NM-B701) - Brak reakcji

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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 Y530 (NM-B701) - Brak reakcji


by ziomal92 27 November 2025, 23:13
Cześć,
Proszę o pomoc w identyfikacji problemu. Laptop Lenovo Legion którego nie da się uruchomić.

Od początku: Laptop po podłączeniu brał 0,120A i delikatnie grzała się przetwornica RT6585BGQW. Zwarcie na linii LDO3, próba zwarciowa pokazała KBC. KBC wymienione, zaprogramowane, zwarcia nie ma ale laptop nadal się nie uruchamia. Teraz pobiera 0,220A i przetwornica grzeje się do 80 stopni od razu. Wymieniłem ją na RT6575BGQW bo taką miałem pod ręką (wyprowadzenia takie same oraz LDO3/LDO5 Always On) ale tak samo się grzeje. Brak zwarć na pinach przetwornicy. Rezystancja na cewce 3.3V to 1,3Kohm'a. Proszę o pomoc w ustaleniu co jeszcze może być uszkodzone. Z góry dziękuję.

Re: Lenovo Legion Y530 (NM-B701) - Brak reakcji


by Google Adsense [BOT] 27 November 2025, 23:13

#3 Re: Lenovo Legion Y530 (NM-B701) - Brak reakcji


by ziomal92 28 November 2025, 16:48
Machine wrote:Measure the voltage and resistance to ground on pins 3, 13 of PU601.

Pin 3 - 8,8Kohm
Pin 13 - 16Kohm
Machine wrote:Measure the resistance to ground of PL601, PL602

Pl601 - 8Kohm
PL602 - 1,2Kohm

#5 Re: Lenovo Legion Y530 (NM-B701) - Brak reakcji


by ziomal92 28 November 2025, 20:17
Machine wrote:Measure the voltages on pins 3, 13 of Pu601.

Pin 3 - 2,75V
Pin 12- 4,99V

Re: Lenovo Legion Y530 (NM-B701) - Brak reakcji


by Google Adsense [BOT] 28 November 2025, 20:17

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