• Dell Latitude 3540 zwarcie na głównej lini zasilania.

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#21 Re: Dell Latitude 3540 zwarcie na głównej lini zasilania.


by dir 7 June 2025, 11:34
PL5001 - 0,52 kΩ
PL4551 - 2,19 kΩ
PL4501 - 2 kΩ
PL5101 - 0,69 kΩ
PL5301 - 1,60 kΩ
PL4401 - 36,5 kΩ
PL4801 - 45,4 Ω
PL4702 - 11,7 Ω
PL4701 - 11,70 Ω

Re: Re: Dell Latitude 3540 zwarcie na głównej lini zasilania.


by Google Adsense [BOT] 7 June 2025, 11:34

#23 Re: Dell Latitude 3540 zwarcie na głównej lini zasilania.


by dir 9 June 2025, 14:23
Dziękuję "Vogelek23" za podpowiedź, źle zrozumiałem.
PL5001 - 0 V
PL4551 - 5,1 V
PL4501 - 3,3V
PL5101 - 0 V
PL5301 - 0,1V
PL4401 - 4V
PL4801 - 0 V
PL4702 - 0 V
PL4701 - 0 V

#24 Re: Dell Latitude 3540 zwarcie na głównej lini zasilania.


by matic 9 June 2025, 19:51
Open the jumper R2446 again and remeasure the power consumption of the board on the 19V input power rail.
[ Obrazek ]

#25 Re: Dell Latitude 3540 zwarcie na głównej lini zasilania.


by dir 10 June 2025, 12:17
Z otwartą zworą R2446, pobór mocy na głównej linii zasilania wynosi 0,029A.

#26 Re: Dell Latitude 3540 zwarcie na głównej lini zasilania.


by matic 11 June 2025, 13:34
Leave the board connected to the power supply for about 10 minutes to allow the temperature to stabilize, and check which component on the board gets warm in this case.

#27 Re: Dell Latitude 3540 zwarcie na głównej lini zasilania.


by dir 11 June 2025, 14:21
Z otwartą zworą R2446, czy zalutować zworę? Na pewno się grzeje KBC na zalutowanej R2446.

#28 Re: Dell Latitude 3540 zwarcie na głównej lini zasilania.


by matic 11 June 2025, 22:12
With the jumper R2446 opened.

#29 Re: Dell Latitude 3540 zwarcie na głównej lini zasilania.


by dir 13 June 2025, 14:18
Nagrzewa się lekko Battery Charger PU4401 i logiczna część CPU, tylko nie punktowo a cały rdzeń.

#30 Re: Dell Latitude 3540 zwarcie na głównej lini zasilania.  [SOLVED]


by matic 14 June 2025, 20:20
The small core of the APU hybrid should not heat up at all at this stage. The APU is damaged almost for sure.

#31 Re: Dell Latitude 3540 zwarcie na głównej lini zasilania.


by dir 16 June 2025, 10:38
Dziękuję za szeroko pojętą pomoc, ale reasumując w większości nowych płyt uszkodzeniu ulega procesor.

Re: Dell Latitude 3540 zwarcie na głównej lini zasilania.


by Google Adsense [BOT] 16 June 2025, 10:38

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