Testimonial: "Sorry for not updating, I've noticed the lcd connector had one bad pin and it was touching with the one on his side, i put it back on it's place. Now there are no beeps but won't give image. Is the motherboard dead? Already tried turning it on without memories & without HDD and many different ways"
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Do you have a video cable (HDMI, DVI, or VGA) connected between the netbook and a TV? If so, unplug it and see if that restores your picture. If not, look for the icon on or near the number row at the top of the keyboard where you can change your display output. It usually looks like a computer or monitor on the key. Press it a few times and see if that helps. If this doesn't do anything, have you tried restarting by holding down the power button for 5-6 seconds? This is called a hard shutdown. When press it again to start the netbook do you see anything on the screen at all in the beginning and then it goes blank right before Windows loads? Or does the fan stay real loud and nothing ever comes up on the screen at all? If it's the first scenario where something does comes up but Windows doesn't load you may have a video driver issue. You need to start the netbook and continuously hit either F8 or F10 to go into SAFE MODE. Then choose the start in SAFE MODE option and perform a SYSTEM RESTORE to roll back your current settings to the last known good configuration. If the second scenario comes up where nothing at all comes on you could have several problems: the screen is dead due to a fault or loose internal cable, the video card is dead or damaged, or your motherboard is dead or damaged. These will require warranty repairs or professional repairs. Do you hear any beeps when you restart? These matter if you do. Listen for short and long beeps and write down their pattern. They will tell you what is wrong based on your computer. For instance two short beeps followed by two long beeps sometimes means bad RAM.
I hope this helps! Let me know if I can be of further assistance.
If it EVER works, then the problem is not a failed part, but a weak part. The most likely component type to give you such problems are capacitors. But very few repair techs know how to find such problems, and even fewer have the equipment needed to find the bad one(s) in-circuit. The failure mode is high ESR (ESR means Equivalent Series Resistance). The lower the ESR, the better. Capacitors with high ESR cannot stabilize circuits which demand high pulse currents, such as in switch mode power supplies.
1) First thing to check is the AC adapter (Charger) power output. It is 19 Volts (DC) Suggest use a multimeter to check. An economical, yet good enough for this test, multimeter, can be purchased for as little as $8 to $12. Available in a multitude of stores. An auto parts store is but one example.
In the above video -> DO NOT TEST THE POWER LINE CORD -> GOING INTO THE AC ADAPTER (Charger) 0:00 to 3:58 in video.
-> TOO DANGEROUS. Take the power cord to a pro to test it. AGAIN -> DO NOT TEST THE POWER CORD 110 to 220 volts will give you a BAD SHOCK to -> FATAL <- (Can kill you)
For the second part of the test starting at 3:58, it is okay. You will be testing for 19 Volts -> DC If the voltage shown is not at least 17.1 Volts (DC), (90 percent), the AC adapter is no good. Replace.
AC adapter checks out? Then it's time to check the DC Power Jack. (DC_IN on the laptop. The jack on the laptop you plug the AC adapter into )
2) Remove the Battery. With a non-metallic object, gently see if you can wiggle the center pin of the DC Power Jack around. ANY perceptible movement means a bad DC Power jack.
Good news is that it is Not soldered to the motherboard. It is attached to wires, that are attached to a small white plug in connector. (DC Power Jack is connected to a harness),
Looking at the motherboard in the photo, you will see two green squares. The middle square is the Processor.
The green square to the right is what I want you to look at. Specifically, the small white connector to the right of it. (The green square is a chipset. It has a white triangle < pointing to the Top/Right corner)
Put your mouse cursor on the photo. (Magnified view) Go to the small white connector to the right, of the green square I indicated above. Has a small white arrow ( > ) pointing to the Top/Left corner of the white connector. This is the CN5 connector on the motherboard.
If the DC Power Jack harness is not the problem, then the problem is Power MOSFET's on the motherboard, and or Capacitors. (Ceramic SMD capacitor/s)
[Just basic info. Pertains to an HP laptop. Just want you to see about Power MOSFET's,
When you plug in the power cord is there any lightswhatsoever on the laptop, where the plug goes in or on the AC Adapter of thepower cord?
When you press the power button do you hear fans running, hard drive spinning,lights on the computer, hear any beeps or lights constantly blinking, hear theDvD/CD drive click and the light on the drawer of the DvD/CD turn on for asecond or two? If so the laptop is trying to boot or may have booted, butthe screen is not showing for some reason.
Beep tones and blinking lights tells the technicians what is going on with thelaptop and why it is not booting. Most times it's a motherboard issuewhen you hear beeps or blinking lights continuous.
Maybe your power cord is bad if you don't get anything to happen whatsoeverwhen you press the power button. And if that's true maybe you wasoperating off the battery the last time you had it on and since the power cordis bad, it was not charging the battery so the battery is drained and the powercord is bad.
Maybe you have a Static Charge Buildup. Remove the Power Cord, Remove theBattery, then Press and Hold the power button for 30seconds. After 30 seconds plug the power cord back in (leave the batteryout) and hit the power button to see if it boots. If it does, you can putthe battery back in and let it charge.Maybe your DC Power Jack which is where the power cord plugs into the computer is bad. Take an ink pen and push the tip inside the jack and see if the little pin wiggles, if so the jack is bad. You'll have to take the laptop apart to fix it. Most times it is soldered onto the motherboard, so you will have to desolder the old and solder a new one.
For a test
-Remove the battery from the laptop. (leave it out)
-Plug in the adapter and turn the laptop on.
-Gently wiggle the adapter plugged in
If the computer powers off the solder and/or pins have broken loose from the DC jack. This is very common. Average repair bill is around $150, if your in the Denver Colorado Area I can do the repair for about $50
If it won't turn on while you wiggle the adapter and hit the power button then the adapter is bad again sadly