DV2000 no light on screen
I Hav Problem with 2 Dv2000 Laptop same problem I Change the inverter and screen to but nothing always no light Problem in the motherboard
Any one can Help Please
Thanks
Any one can Help Please
Thanks
-
-
Re: DV2000 no light on screen
I suppose it is a AMD Proccessor with nvidea video chip. If it does, the Video Processor is the issue, and will need reflowed or reballed. -
Re: DV2000 no light on screen
You should also check the video ribbon cable, as the video signal and inverter power runs through them. They can sometimes go bad from too much flexing when opening and closing the laptop lid.Comment
-
Re: DV2000 no light on screen
Main problem of some DV-series is the GPU. Some nVidia GPU's has problem that nVidia made faulty series of GPU's installed on some laptops mobo's. Reballing with no-lead balls solving the problem for a while. On faulty chip some connections pad separating from the ball and makes crack between chip pad and mobo pad. Best choice is replacing GPU witn new one with better pads.
I'd like to say Hello for everyone. It's my first message on this forum , I'm new here.
And sorry for my english , I'm from Poland.Laptops and computers repair.Comment
-
Re: DV2000 no light on screen
Hello All
The problem is in the motherboard bi cos laptop is working fine just no light on screen like inverter problem i see hp logo but light is bad
ThanksComment
-
Re: DV2000 no light on screen
Notice
LCD screen has no light (everything else OK) I Check inverter 6pins
pins1-2 nothing pins 3-4 3.3vcc pins 5-6 19vcc
Comment
-
Re: DV2000 no light on screen
Looks like cold cathode (CCFL) died. If you got frequency range in your multimeter put piece of paper between measuring pins (stick them together with piece of paper between) , set up multimeter on "Hz" range , put measuring pins close to inverter (do not touch anything) and turn on laptop . If frequency will be shown around 60kHz then inverter is ok. If the CCFL is dead inverter will be work only in first 2-3 sec after you turned on laptop.Laptops and computers repair.Comment
-
Re: DV2000 no light on screen
I have replace both the lcd & inverter but the samme problem a Friend tell me is an mb but i dont know it ThanksComment
-
Re: DV2000 no light on screen
What about external monitor?
LCD panel is directly driving by graphic chip so this might be a problem. Try to reflow it (or heat it up) , if this will help you need to replace graphic chip. You got nVidia G72M-V G3-64.Laptops and computers repair.Comment
-
Re: DV2000 no light on screen
im sure is not the graphic chip i hav already reball it big problem
Comment
-
Re: DV2000 no light on screen
But external monitor is working ok?
Well , reballing doesn't help in some situations. nVidia made series of faulty chips that have bad pads (lead-free balls can't stick to them). You can reball them only with balls containing lead. But best choice is to replace graphic chip. If you got schematic track all way that is between graphic chip and LCD or power source and LCD.Laptops and computers repair.Comment
-
Re: DV2000 no light on screen
Problem is not bga i'm sure i hav 2 dv2000 some problem intel and amd my friend repair this problem but i lost his phone number is mb but i dont know where is
Comment
-
Re: DV2000 no light on screen
Then you have to analyze schematic and look for bad component (s).Laptops and computers repair.Comment
-
Re: DV2000 no light on screen
the problem is an mcp for Voltage Regulator but i dont know it that need an oscilloscop to know it ican't find it with multimulter thaty the problemComment
-
Re: DV2000 no light on screen
HELLO.
did you find any solution?
i have the same problem and i change inverter,monitor,cables,resolve the gpu but same problem. is working fine on external monitor only.
thanksComment
-
Re: DV2000 no light on screen
I'd be interested to see what you guys find out about this. I've been working on these since they came out and have fixed hundreds of problems with them but never had one do this. Especially an Intel. That makes no sense. Are you *sure* the LCD/inverter are fine? Try this - bypass the inverter all-together. They sell simple external LCD inverters that have an AC plug on one end and an LCD backlight connector on the other. I'll get you a link on Ebay if you like but I use this all the time to test backlight problems.Comment
-
Re: DV2000 no light on screen
I Find solution and now my dv2000 working Fine
Thanks for AllComment
-
Re: DV2000 no light on screen
What was the solution??Comment
-
Re: DV2000 no light on screen
the solution is to send 5vcc to inverter
pins is 1-2gnd 3 is 5v that is on/off 4=3.3vcc 5-6=19vcc when u will check the inverter u will see 3.3v 3.3v 19vcc 19vc but you will need 5vcc to start inverter That all
Comment
-
Re: DV2000 no light on screen
here is no problem with Motherbord mosfets , only issue with Nvidia chipset . try to heat 150 digree heat for 1 minut . and wait 2 or 3 minut . try to On your laptop display will come . this Solution for maximum HP DV nvidia chipset seriosComment
-
I have an HP model : 14-cf0011nf and I want to change its display screen (it has an original 14" full HD TN 30 pins panel) which works without problem but I want to put another screen with an IPS panel, the problem is that I tried several screens but there is no display except with the original screen, I never had this problem before I changed hundreds without problems but this PC is not 'accepted than its original screen
otherwise on the motherboard it displays edp and I don't know, do the panels I tried only work with the LVDS protocol?
If anyone has any information on the subject... -
I have a Dick Smith 37" LCD TV, Model GE6804. I am using it as PC extended monitor only.
Problem is while watching tv, I hear a semi loud click(like a electrical breaker tripping due to overload, just sound like it but no actual electrical overload), then screen is covered with green or pink. I can still see the original picture image but overlayed by green or pink. See attached images. Pink.jpg is what I see, and Normal.jpg is before green or pink screen, What I captured was pink screen, but about 80% of time it's green and 20% of time it's pink.
Then each time... -
Problem
This is an LG edge LED lit LCD Display. The LEDs are on the bottom edge of the display. There are 2 bars (left and right) Each bar has many LEDs and a 6 pin connector. Each pin drive several LEDs thus is the highest current flow / heat junction. The weak lead free solder gradually fails with thermal expansion/contraction cycling and increases resistance. PSU will compensate up to a point, then when the current is too high, PSU just shut down the backlight causing a dark display. I have even seen one which the connector just fell off as solder points became completely detached.... -
Hello again everyone,
This is my latest mission, to try getting this Sony tv back to normal working order…
I've only just got it today, when you power it up everything is as should be, in fact it works perfectly for a few minutes then the screen starts getting horizontal lines on & eventually the full screen goes back, I will upload photos of the problem & also some photos of the board etc. You might notice that I'm busy trying the tape method, I'm not sure exactly where the clock lines are so I'm just guessing & hoping for the best lol . I've already tried... -
Hi all , thanks for having me & I think this has been asked before but my case seems a bit odd.
I have a MacBook Pro , board 820-2915a and it turns on , chimes etc etc , keyboard lights up, fans spins , can turn caps lock on/off but screen is dead.
Iv tried the resets , shine torch through back logo , nothing , it seems the screen has no power. If I plug charger , it charges but if I disconnect battery it displays green light but won't turn on. Iv tried screen on with another board & it works & seems I'm not getting any voltage at pin 2 , next to ground pin .
is this...
Comment