Hi everyone,
I am dealing with the problem of turning on and off my Dell e7470 notebook.
The battery charge light is solid white, I press the button, the power indicator and the light on the button are solid for 1-2 seconds and immediately turn off.
The system does not turn on, there is no post.
I removed the RAMs and changed them, changed the battery, RTC battery, AC adapter, removed them and waited, tried again, it does not turn on.
The problem continues in the same way.
I tried to turn on the Fn key, nothing came to the screen. The Fn key is ineffective. I turned it on by pressing the D key, the white and black RGB screen test opened 2 times in succession. It closed, I pressed the letter M at this time, nothing comes to the screen, diagnostics etc.
The system does not give any beep sound indicator signal. There is no Run on turn at all.
I removed the motherboard, measured the stable voltage in the 19v 5v 3v coils. When I pressed the power button, I observed that the 3v Run and 5v Run voltages fluctuated at low levels and the system shut down.
There is no heating on the motherboard. The CPU is also cold.
Where should I measure and check according to the motherboard diagram?
I am dealing with the problem of turning on and off my Dell e7470 notebook.
The battery charge light is solid white, I press the button, the power indicator and the light on the button are solid for 1-2 seconds and immediately turn off.
The system does not turn on, there is no post.
I removed the RAMs and changed them, changed the battery, RTC battery, AC adapter, removed them and waited, tried again, it does not turn on.
The problem continues in the same way.
I tried to turn on the Fn key, nothing came to the screen. The Fn key is ineffective. I turned it on by pressing the D key, the white and black RGB screen test opened 2 times in succession. It closed, I pressed the letter M at this time, nothing comes to the screen, diagnostics etc.
The system does not give any beep sound indicator signal. There is no Run on turn at all.
I removed the motherboard, measured the stable voltage in the 19v 5v 3v coils. When I pressed the power button, I observed that the 3v Run and 5v Run voltages fluctuated at low levels and the system shut down.
There is no heating on the motherboard. The CPU is also cold.
Where should I measure and check according to the motherboard diagram?
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