Picture 1 This is a common problem with the Dell Inspiron 1501/E1705/6000 series. Most of the motherboards use the same general layout and design. You can tell by the white and silver cases used. From my guess, the solder on the leads of FL1 [filter] tend to lose contact after regular use. Perhaps eating away at the Filters pad, due to the current it is carrying. Sometimes it may be years before it finally lose contact, other times only months pass. In this instance the laptop was a couple of years old before it failed. How to fix it: Picture 2 Remove FL1 Clean contact area Replace FL1 Solder back onto clean surfaces. Click picture to see larger image Picture 2 Shows another failed NO Charge issue. FL1 cannot handel the surge when plugged in and eventually arcs then lose contact with the solder pad. In this case if you cannot find a replacement, you can simply turn the coil [FL1] upside-down, and make sure you have positive voltage on the circuit. Try to t
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ReplyDeleteHello,
ReplyDeleteI have a Hp DV4-1225dx
My problem is that when I power it up, it comes on and stays on, but I get no video and I get a continuous blinking of the caps and num lock light. I am a computer tech, but this project has me baffled. I ordered a new motherboard and it is doing the same thing, I switched out Memory chips(ram), and it is still doing the same thing. I even tried different Cpu's on both motherboard's, and I am still having a problem.
Help me please
You may have a defective touchpad or add-in peripheral. You should always test the board on the bench first. Without anything connected.
ReplyDeleteThen do a visual inspection, carefully lifting plastics and have plenty of light, because they can remove parts from the board.
The DV4 series reverts back to manufacturing problems. Switching over the the ATI video from nVidia simply swapped problems. Many caps and resistors on those boards have weak solder joints, from either flowing them too fast or contamination on the solder pads.
Levi- you did not say what the blink code is. 1 Blink, 2 blinks or what. I will be checking over some of the DV4's that I have done and see what I can write up.
Well when it blinks it just continuously blinks, I know that means power failure, but that's not possible when I added new bios bat, new battery, new adapter plug. One of the boards I just found out has a burnt capacitor, but the other one I'm still having the same problem.
ReplyDeleteYou say its the touch pad, when I plug it up i just plug in the aux power, and the power button and dc jack. then turn it on and get the same thing, I don't even plug up the touch-pad.
I'm about to send this bad motherboard back that I just ordered and was already having a burnt capacitor. Should I get my money back or is this board a possible fix?
You may want to notify the seller, and inform him that it is doing the same thing that your dead board does. Sometimes they write their ads on eBay so confusing that it said that it was a parts/repair board. But if the ad says that it is working, return it. Not knowing the capacitor that is burned, I cannot say if replacing it would fix it.
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