• Dell Inspiron 15 3000 series can't power on

Danes je 3 Februar 2026, 13:00

Dell Inspiron 15 3000 series can't power on

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#1 Dell Inspiron 15 3000 series can't power on

Napisal/-a cygron • 13 April 2023, 06:37
Model : Dell Inspiron 15 3000 Series
Board id : Cedar_Intel_MB 13269-1 PWB FX3MC Rev A00

Laptop can't power on. 3v 5v is ok and power key is ok. But can't power on. BIOS flashing can't solve the problems. Need help.

Re: Dell Inspiron 15 3000 series can't power on

Napisal/-a Google Adsense [BOT] • 13 April 2023, 06:37

#2 Re: Dell Inspiron 15 3000 series can't power on

Napisal/-a xamledyD • 13 April 2023, 08:44
Hello!
Is there any change in power consumption when you press the Power button?
Are there any signs of damage on board (corrosion, liquid residues, burned places etc.)?
Are you using original Dell power supply?
Measure resistance to ground on coils (with disconnected all power sources of course).

#3 Re: Dell Inspiron 15 3000 series can't power on

Napisal/-a cygron • 14 April 2023, 14:57
Only a little change in power consumption when i press the Power button. Without press power button 0.002 amp and press power button 0.010 amp and drop to normal.
There are no signs of damage on board.
I already tested with Original Dell Adapter and nothing change.
Resistance to ground on all coils are normal. There are no short sign on coils.

#5 Re: Dell Inspiron 15 3000 series can't power on

Napisal/-a cygron • 15 April 2023, 12:04
PU4901 pins
Pin 1,2 - 0V
Pin 6 - 1.8V
Pin 12 - 5V
Pin 15 - 5V
Pin 16 - 0V
Pin 17 - 5V
Pin 20 - 0V

#7 Re: Dell Inspiron 15 3000 series can't power on

Napisal/-a cygron • 17 April 2023, 09:41
Yes. I'm sure. I counted the pins correctly. With press or without press power key, voltages are the same. Laptop are in completely dead position. Only a little change in power consumption when i press the Power button. Without press power button 0.002 amp and press power button 0.010 amp and drop to normal.

#8 Re: Dell Inspiron 15 3000 series can't power on

Napisal/-a Machine • 17 April 2023, 11:28
Measure the voltages on pins 7, 15, 21, 64, 73, 74, 108, 112, 119, 120 of KBC.
Measure the voltages on pin 93, 117 of the KBC in the following cases:
at power off
with power on pressed
at power on.

#9 Re: Dell Inspiron 15 3000 series can't power on

Napisal/-a cygron • 23 April 2023, 08:25
KBC Pins Voltages are
Pin 7 - 0V
Pin 15 - 3.3V
Pin 21 - 0V
Pin 64 - 0V
Pin 73 - 0V
Pin 74 - 0V
Pin 108 - 3.3V
Pin 112 - 3.3V
Pin 119 - 0V
Pin 120 - 0V

at power off
Pin 93 - 3.1V
Pin 117 - 3.3V

with pressed power key
Pin 93 - 0V
Pin 117 - 0V

#11 Re: Dell Inspiron 15 3000 series can't power on

Napisal/-a cygron • 29 April 2023, 11:06
I try Reflow APU with heat gun but nothing changed. Is PCH contained in the APU damage?

Re: Dell Inspiron 15 3000 series can't power on

Napisal/-a Google Adsense [BOT] • 2 Maj 2023, 09:10
 Ta tema je označena kot ARHIVSKA. Odgovorite samo, če vaše sporočilo vsebuje rešitev (Pravila in Pogoji, 12.1).
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