How to repair hp pavilion dv6 laptops black screen issues
In this post i am going to describe you some hp notebook hard resetting software reset bios recovery and no display tricks . and we will discussed the bios code light blinking debug code and translate it to the code and be able to find fault . First of all we se the statuse off hp laptop dv 6 model having problem no power and display the faulty laptp is look like as image is shown below : when we power up laptop the light caps lock and numlock keys are blinking no power up laptop only black screen no fan is working . How to troubleshoot our problem lets see the pic below:\ DO THIS FIRST – Perform a hard reset
Disconnect all peripheral devices and remove all USB devices and media cards. You want to test the computer not the accessories!
Disconnect the AC power adapter, remove the battery, and then press and hold the power button for at least 15 seconds .
Reconnect the AC power adapter (but do not connect the battery), Press the Power button, Look for glowing LEDs near caps lock and num lock keys, and Listen for sounds of a disk drive and fan turning.
if the adapter light blink all time go to adapter checking i.e change adapter or want to more details how to troubleshoot adapter problem click here for more information 2 second on if your adapter light is not blinking and caps lock led glow and blinking and no display on screen it mean the problem is in dislay section . first connect your notebook to the external monitor and power on the laptop if display is working on external monitor check LCD of laptop and may be LCD strip should be damage change what is faulty. if no display on external monitor please do as i do . open the laptop and check all peripheral devices from the laptop and check it one by one with other next step is read code from light blink on caps lock: Code descriptions
|Code type||Number of Blinks or Beeps||Component Being Checked||Condition||Possible solution(s)|
|AC power adapter LED||Constantly on||Power adapter||OK. Power is being supplied.||None. The power adapter is likely not the problem.|
|AC power adapter LED||Constantly off||Power adapter||Power is not being supplied||Try a different power outlet.Replace power adapter.|
|AC power adapter LED||Continuous blinking||Power adapter||Insufficient power||Try a different power outlet.Replace power adapter.|
|Caps Lock/Num Lock||1||CPU||CPU not functional||Reseat replace CPU.Service|
|Caps Lock/Num Lock||2||BIOS||BIOS corruption failure||Restore BIOS from onboard backup (jumpers)Service|
|Caps Lock/Num Lock||3||Memory||Memory module error not functional||Reseat memory modules (see next section).Test memory from UEFI or BIOS. Replace bad memory modules. Service|
|Caps Lock/Num Lock||4||Graphics||Graphics controller not functional||Service|
|Caps Lock/Num Lock||5||System board||General system board failure||Service|
|Caps Lock/Num Lock||6||BIOS||BIOS authentication failure||Restore BIOS from onboard backup (jumpers)Service|
|Beep||Varies||Varies||Varies||Reseat memory modules (see next section).Service For more detail on the exact code, search the Internet for “beep code” and the manufacturer of your BIOS – such as AMI or Award.|
The orignal source was taken from hp website