Sony VAIO PCG-C1VP won’t turn on, won’t boot, no display or black screen problems

Sony VAIO PCG-C1VP won’t turn on at all, there is no display, won’t boot just a black screen and other problems, this is a general diagnostic and repair steps to fix your laptop and make it turn on again.

 

Sony VAIO PCG-C1VP doesn’t turn on at all

Sony VAIO PCG-C1VP won’t turn on at all, when you plug the AC adapter into the laptop, there are no lights, all led OFF. When you push on the power button, nothing happens, all led stays OFF, and there are no sounds. The laptop appears to be completely dead.

Possible problem:

  • The AC adapter failed; the battery has no charge left, the motherboard doesn’t receive any power from the adapter. In this case test the AC adapter with a voltmeter. If it’s dead, replace it with a new one. (How to test AC adapter with voltmeter).
  • Static electric charge on the motherboard, Power circuit in wrong state; your laptop has static electric charge inside capacitors made power circuit in wrong state. Unplug AC adapter, take out laptop battery and hold power button for 30 seconds, the static charge will dissipate. Plug the AC adapter and turn on the laptop (in some case you have to take out the laptop CMOS battery too).
  • Some electronics components on the motherboard failed, in most case the power jack failed or there are a short in some SMD capacitor or MOSFET directly after power jack. Test the Voltage and Continuity with a Voltmeter and check electronics components temperature with your finger. The failed electronic component has to be replaced (If you have AC adapter with led and the adapter led turn off every time you plug the adapter into laptop that is sign of short in electronic component after the power jack).
  • BIOS failed, System power (3V/5V) work fine, you can measure the 3.3V and 5V on the motherboard, No electronics components have short or overheating and 3.3V on the power button, BIOS has to be reprogrammed (flash bios) or replaced. (How to reprogram Laptop BIOS).
  • Motherboard completely dead. The motherboard has to be replaced, if it’s not too expensive. Otherwise get ready to buy a new laptop.

 

 Sony VAIO PCG-C1VP won’t turn on but the charge led light ON

Your Sony VAIO PCG-C1VP won’t start up but the charge led light ON, when you plug the AC adapter into the laptop, the charge led light ON, but when you push on the power button, nothing happens, the power led stays off, and there are no sounds. The laptop appears to be dead.

Possible problem:

  • Static electric charge on the motherboard, Power circuits in wrong state; your laptop has static electric charge inside capacitors made power circuit in wrong state. Unplug AC adapter, take out laptop battery and hold power button for 30 seconds, the static charge will dissipate. Plug the AC adapter and turn on the laptop (in some case you have to take out the CMOS battery too).
  • Power button failed; Test Power Button ON/OFF Continuity with a Voltmeter, if there is no continuity when you push on the power button. The Power button has to be repaired or replaced. (How to test Power Button ON/OFF Continuity with a Voltmeter)
  • Some electronics components on the motherboard failed, in most case there are a short in some MOSFET. Test the continuity and Voltage with a voltmeter and check electronics components temperature with your finger. Test System Power (3V/5V/+V1.8/+V1.25S/+VGFX/+VCCP), CPU power (VCC_CORE). You will need an electronic Schematic Diagram for Laptop Sony VAIO PCG-C1VP. The failed electronic component has to be replaced. (How to test Laptop System Power)
  • BIOS failed, System power (3V/5V) work fine, you can measure the 3.3V and 5V on the motherboard, No electronics components have short or overheating and 3.3V on the power button, BIOS has to be reprogrammed (flash bios) or replaced. (How to reprogram Laptop BIOS).
  • Motherboard failure; the motherboard has to be replaced, if it’s not too expensive. Otherwise get ready to buy a new computer.

 

 Sony VAIO PCG-C1VP won’t boot, screen stays black

Your Sony VAIO PCG-C1VP turns on, but the screen stays black, there is no display with Power light ON and Fan ON. When you push on the power button the led lights ON, cooling fan works but nothing appears on the screen. The screen is completely black. There is no image on the screen at all.

Possible problem:

  • RAM failure; your Sony VAIO PCG-C1VP turns on, but the screen stays black there is no display with Power light ON and Fan ON. It’s possible one of the memory modules failed. In this case you can try cleaning and reseating memory modules to make sure they are making good contact with the slot. You can try removing memory modules one by one and test the laptop with only one module installed. You can try replacing memory modules. If reseating/replacing memory doesn’t help, try removing the hard drive, DVD drive, modem, wireless card, keyboard, etc… In other words, disassemble the laptop to bare minimum and test again. If the laptop still doesn’t turn on, most likely you have Screen, Processor, Graphics Card or Motherboard failure. (How to clean or replace Laptop RAM).
  • Screen faulty or bad video cable connection; your Sony VAIO PCG-C1VP turns on, but the screen stays black there is no display with Power light ON and Fan ON. The screen is completely black. Test the laptop with an external monitor connected to the VGA or HDMI port, if the external monitor works fine. In this case most likely you have you have a faulty screen or bad video cable connection. Check and replace the laptop screen video cable connection if it’s faulty. Replace laptop screen if it’s faulty. (How to replace laptop screen)
  • Processor failure; your Sony VAIO PCG-C1VP turns on, but the screen stays black there is no display with Power light ON and Fan ON When you test the laptop with an external monitor connected to the VGA or HDMI port, the external monitor stays black no display. In this there is chance you have failed Processor, reseat or replace processor. (How to replace Laptop processor).
  • Graphics Card failure; your   Sony VAIO PCG-C1VP   won’t boot, when you turn on the laptop the screen stays black there is no display with Power light ON and Fan ON. When you test the laptop with an external monitor connected to the VGA or HDMI port, the external monitor stays black no display. In this case probably you have failed Graphics Card, try to repair graphic card with heat gun or replace it. (How to repair laptop graphic card)
  • Motherboard failure; when you push on the power button the led lights up, cooling fan works but nothing appears on the screen. The screen is completely black. When you test the laptop with an external monitor connected to the VGA or HDMI port, the external monitor stays black no display. In this there is chance you have failed Motherboard, check motherboard electronics components temperature with your finger and test the voltage and continuity with a voltmeter. The failed electronic component has to be replaced. (How to test Laptop System Power).
  • BIOS failed, motherboard electronics components look good, System power (3V/5V) work fine, you can measure the 3.3V and 5V on the motherboard, No electronics components have short or overheating and 3.3V on the power button, BIOS has to be reprogrammed (flash bios) or replaced. (How to reprogram Laptop BIOS).
  • Motherboard failure; the motherboard has to be replaced, if it’s not too expensive. Otherwise get ready to buy a new computer.

 

Sony VAIO PCG-C1VP common problems and Useful Links:

Download Sony VAIO PCG-C1VP Driver.

 

For other Sony VAIO PCG-C1VP problems write a comment.

Leave a Reply