Sony VAIO PCG-GRT100 wont turn on, won’t power on, no display, black screen problems

Laptop Sony VAIO PCG-GRT100 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 these problems.

First case laptop Sony VAIO PCG-GRT100 won’t boot, no display just black screen

When you plug the AC Adapter into the laptop Charge led lights ON, when you push on the power button Power led lights ON, but your Sony VAIO PCG-GRT100 won’t boot, there is no display just a black screen.
Possible problem and the fixes steps:

  1. Power circuit in wrong state; 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 the AC Adapter and turn on your laptop.
  2. RAM or Hardware failure; your Sony VAIO PCG-GRT100 powers on, but there is no display just black screen with Power led light ON and cooling fan work. It’s possible one of the memory modules (RAM) failed. In this case you can try cleaning and reseating memory modules to make sure they are making good contact with the slot. If reseating / replacing memory doesn’t help, try removing the hard drive, DVD drive, wireless card, SD card, keyboard, etc… In other words, disassemble the laptop to bare minimum and test again one by one, replace the faulty hardware.
  3. Screen faulty or bad video cable connection; laptop turns on, but screen is black, with Power led and Hard Drive led lights ON. Test the laptop with an external monitor connected to the VGA, press the appropriate key to switch to it (Fn key + F4 key in most laptop). If the external monitor works fine. In this case most likely you have a faulty screen or bad video cable connection. Check them and replace the faulty one.
  4. Processor failure; your Sony VAIO PCG-GRT100 turns on, but there is no display, Power led lights ON. Check laptop with an external monitor connected to the VGA port. If there is no display on the external monitor, there is chance you have failed Processor, reseat or replace processor and test again.
  5. Some electronics components on the motherboard failed; disassemble the laptop and Check electronics components continuity, Voltage and temperature with a Multimeter. Check Laptop Power System, you will need an electronic Schematic Diagram for Laptop Sony VAIO PCG-GRT100. The failed electronic component has to be replaced.
  6. BIOS failed; 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.
  7. Graphics Card failure; your Sony VAIO PCG-GRT100 won’t boot or turn on and restart without display just a black screen. Test the laptop with an external monitor, if there is no display on the external monitor, probably you have failed Graphics Card, try to repair graphic card with heat gun or replace it.
  8. Motherboard dead. The motherboard has to be replaced.

Second case laptop Sony VAIO PCG-GRT100 wont turn on, the charge led lights ON

When you plug the AC Adapter into the laptop, Charge led lights ON, but when you push on the power button, nothing happens, laptop won’t turn on, and Power led stays OFF.
Possible problem and the fixes steps:

  1. Power circuits in wrong state; same procedure as problem 1 in first case above.
  2. RAM or hardware failure; same procedure as problem 2 in first case above.
  3. Power button failed; Test Power Button ON/OFF Continuity with Multimeter, if there is no continuity when you push on the power button. The Power button has to be repaired or replaced.
  4. Processor failure same procedure as problem 4 in first case above.
  5. Some electronics components on the motherboard failed; same procedure as problem 5 in first case above.
  6. BIOS failed; reprogram or replace the BIOS chip.
  7. Graphics Card failure same procedure as problem 7 in first case above.
  8. Motherboard dead. The motherboard has to be replaced.

Third case laptop Sony VAIO PCG-GRT100 won’t turn on at all

When you plug the AC Adapter into the laptop there is no lights. When you push on the power button, nothing happens. The laptop appears to be completely dead.
Possible problem and the fixes steps:

  1. The AC adapter failed; the battery has no charge left, Motherboard doesn’t receive any power from 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.
  2. Power circuit in wrong state; same procedure as problem 1 in first case above.
  3. Some electronics components on the motherboard failed, in most case the power jack fail or electronic component directly after power jack fail.
  4. BIOS failed; same procedure as problem 6 in first case above.
  5. Graphics Card failure, reprogram or replace the BIOS chip.
  6. Motherboard dead. The motherboard has to be replaced.

Sony VAIO PCG-GRT100 useful links:

How to test Laptop Power System.
How to Clean or Replace Laptop RAM.
How to repair laptop graphic card.
How to Replace Laptop Processor.
How to Reprogram (Flash) Laptop BIOS
How to replace laptop CMOS battery

For other Sony VAIO PCG-GRT100 problems write a comment.

2 thoughts on “Sony VAIO PCG-GRT100 wont turn on, won’t power on, no display, black screen problems

  1. Dr V R Patwardhan

    I have the SONY Laptop (PCG-GRT100 series). The PC starts but every time
    0200 Failure Fixed Disk 0 error appears.
    The PC was working very fine before the error message occurred.
    How to eliminate this error.
    Dr V R Patwardhan

    Reply
    1. helpmate Post author

      Hi there.
      The laptop doesn’t see a (functional) hard drive; that’s why you get the fixed disk failure message. It’s possible that the hard drive dislodged from its connector or the hard drive is corrupt and needs to be replaced.
      First turn it off, open the bay, pull the old drive out and put it back in. then turn on the laptop. if it still complains, turn it off, put in a new hard drive and turn on the laptop. if you still get the fixed disk failure message then the mainboard or some other component is damaged.

      Reply

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