Acer Aspire 5520 wont turn on, won’t power on, no display, black screen problems

Laptop Acer Aspire 5520 won’t turn on, won’t power on, there is no display, just a black screen. This is a general diagnostic and repair steps to fix those problems.

Troubleshooting laptop Acer Aspire 5520 won’t boot, won’t power on, no display just black screen

When you push on the Power Button the Power led lights ON or NOT, your Acer Aspire 5520 won’t start up, and there is no display just a black screen. Possible problem and the fixes steps:

Battery has no charge left + AC adapter failed; you press the power button on laptop Acer Aspire 5520 nothing happens, laptop won’t turns on and there is no display, the battery has no charge left, the motherboard doesn’t receive any power, laptop cannot turn on. You plug in the AC adapter but that doesn’t help, your laptop Acer Aspire 5520 still won’t power on, there is a chance you have failed AC adapter. In this case try with another charger or check AC adapter with a Multimeter. If it’s dead, replaced with a new one, (How to check AC adapter with Multimeter).

Power circuit in wrong state or Over volt protection trips; you press the power button but nothing happens, laptop Acer Aspire 5520 won’t turns on and there is no display just a black screen, your laptop has static electric charge made power circuit in wrong state. Unplug AC adapter, take out the battery and hold down power button for 30 seconds, the static charge will dissipate. Plug in the AC Adapter and turn on your laptop Acer TravelMate 4750G. This should restore the system to normal operating mode.

Screen faulty or bad video cable connection; laptop Acer Aspire 5520 turns on, but screen is black, with Power led lights ON. Test the laptop with an external monitor connected to the HDMI port, VGA port or any Display port, press the appropriate key to switch to it. If the external monitor works fine and load the operation system, most likely you have a faulty screen or bad video cable connection. Check them and replace the faulty one.

Power button failed; the charge led lights on when you plug in the AC adapter, but laptop won’t turn on when you press the power button. Probably you have a Power button failure. The Acer Aspire 5520 Power button has to be repaired or replaced; you can short the power button borne with conductor wire to see if laptop turns on, (How to Test Power Button).

Hardware failure; the laptop powers on, but there is no display just black screen with Power led lights ON or your laptop Acer Aspire 5520 stock on logo or restart. In this case, it’s possible one of the Hardware failed. You can try to disassemble the laptop to bare minimum and try to reseat the hardware one by one and power on the laptop every time you reseat a hardware to know the failed one, replace the faulty hardware,

Some electronics components or chipset on the motherboard failed; Laptop Acer Aspire 5520 won’t turn on at all. Disassemble the laptop and take out the motherboard. With a Multimeter check electronics components continuity, Voltage and Chipset temperature, you will need an electronic Schematic Diagram for Laptop Acer TravelMate 4750G. The failed electronic component has to be replaced, (How to test Laptop Power System). (Electronics components failure will be updated every time we fix this laptop)

BIOS failed; Laptop Acer Aspire 5520 won’t turn on at all, if the Power System and electronics components on the motherboard are good, there is chance you have failed BIOS, reprogram or replace the BIOS chip (How to reprogram (Flash). Laptop BIOS).

Motherboard dead; The Acer Aspire 5520 motherboard has to be replaced.

For other Acer Aspire 5520 problems write a comment.

2 thoughts on “Acer Aspire 5520 wont turn on, won’t power on, no display, black screen problems

  1. zak

    Acer 5520 AMD Turion+ Nvidia MCP67.
    So far , laptop is running normal except that the internal LCD not showing anything, no backlight no signal. Connected to external monitor i can use the laptop without any problem. I have test already invert and flex cable + the lcd with an other acer , all working. I`ve try to heat up the nvidia chip for 3-4 mins at 170c degrees for a test if anything will change, no result. I can see the nvidia chip working normal when connected to external monitor. What i miss and where should i check ? MOBO is ICW50 LA 3581P REV. 2 . any help will be appreciated

  2. helppard

    The MCP67 is dead or will die anyway… Not sure it’s worth your time.
    You can still check for the LCDVDD 3.3V power supply on the LVDS connector, check diode voltage drop on each LVDS line, and check inverter power supply 19V.

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