My neighbor asked me to take a look at his zd7000. When we power it on, the screen turns on, but it stays black and displays nothing. If the laptop is hooked up to an external monitor it shows the graphics no problem on the external screen and still nothing on the LCD.
I took the the LCD apart and checked the ribbon cable to make sure it had a secure connection. That did not solve the issue.
My other idea is that the inverter is gone bad.
Do you guys think it is the inverter? Has anyone else had a similar issue?
I am trying to repair a ZD7000 series laptop. The initial problem was that it had a broken AC Jack. I got a new AC jack and soldered that in. While I was at it, I also got a 3.2GHz P4 out of another laptop to replace the one that was in this laptop.
Now the laptop does not pass the boot screen. It will just display the HP splash page, then reboot. No BIOS beeps. It does this on both AC power and battery.
The bottom left part of screen has two through bolts holding the hinge to the screen on my dv5000t.
At first the screen died as I closed the screen and discovered it had broke. This pulled out the display cable, the one from the motherboard. After I plugged it back in all was fine, except my screen was half attached.
So... I took apart the screen and through bolted the hinge to the lid, just below the LCD screen. I noticed a film behind the LCD that is attached to the hinges. I also noticed grounding plates on the inverter. Is the foil part of the grounding for the inverter or screen?
I have quadrupled check the connections. The Wifi LED still works, so I figured the ground is working but I don't know if it has it's own source. I am typing from the computer right now as it is hooked up to another screen.
I think its the inverter as there is nothing on the screen but pitch black even with a flashlight. Does anyone know how much voltage is suppose to come out so I can test it with a voltmeter?
I am sure there is something I did to screw it up, but I was delicate and don't understand how the inverter could have died just like that if it was working just fine.
I have a DV9000 and the LCD suddenly went dim. I thought the inverter had gone so bought and fitted one. However now when the laptop turns on for the first time I can see the display for maybe 1-5 seconds (5 on initial start, less on soft restarts), but then it goes dim again.
I have tried unplugging AC/Batt and holding power for 20 seconds but it made no difference.
my HP ze4230 laptop Trying to reboot it with a new harddrive it went black on me with no warning.I put the old harddrive back in.Its still dark but I can see in the screen very faintly with a flashlight.I hooked it up to my desktop monitor and it worked well.My problem is,I took the inverter out but how can I tell if its bad or if its the backlight that is bad..
I've read the sticky and many threads here but I'm confused. What is the symptons of the backlight/inverter problems?
My DV2000, when power off the monitor is dark, when power on, the monitor lit/iluminated. But nothing on the screen. The harddrive led blinks so it's accessing.
I thought it was inverter so I replaced it with the $8+ from y'allstore. It didn't work.
I accidentally dropped my Compaq Presario C571NR and it fires up Ok, but the screen is black. I have tested the video card with other monitor and it seems to work fine. I did some research and I found that it could be that either the inverter board or the backlight might have gotten damaged. I have purched a new inverter card online (awaiting arrival) to replace the existing one, but I wanted to know if any of you know which of them has the propensity to get damaged first, the inverter or the backlight?
I'm hoping is the inverter because it seems the easiest to replace, but if it's the backlight, then I'm screwed because I've read it's quite difficult to replace and it's more expensive. Compaq says they'll charge me $300 to fix it (since my warranty has already expired) but I might as well get a new one if the new inverter doesn't fix the problem.
Alright Well I bought a new inverter plugged it in and it still is doing the same thing. Only when i jiggle the wires the light goes on and i see the screen but not for long. I check for loose conncections but can't find any. The external display is fine. I'm wondering if it could be the actual bulb.
Wel I believe I have a CCFL not a LED as the refurb states, my panel under properties is a SEC5442 is this not a CCFL ? Other then this all looks great no scratches problems etc at least the past
few days of use.Unfortunetly I did not get to use any coupons on this deal . Missed the coupon deal by two days called and pleaded my case to no avail.
My Order a refurb from outlet note LED screen
1 Latitude E6400 Laptop: Intel Core 2 Duo T9400 (2.53GHz, 6M L2 Cache, 1066MHz FSB) 1 Certified Refurbished 1 Documentation 1 Service Software 1 8X DVD +/- RW w/dbl layer write capability .....
I have a TT190 with a factory-installed SSD. As many of you are probably aware, Windows 7 support for TRIM greatly improves the performance of an SSD that is used over time. But the drive must support it.
Recently Intel, Samsung, Corsair and some other manufacturers have released new firmware for their SSDs that supports TRIM.
My TT190 contains a Samsung MMCQE28GFMUP-MVA SSD drive. I suspect that Sony uses that same drive (or drives from the same series) in other Vaio models.
I wanted to understand if there is any TRIM firmware already released or planned for this drive, so I sent an email to the relevant support group in Samsung. After two weeks I received the following reply:
Quote:
Thank you for your inquiry to Samsung Semiconductor.
At the end of this month or, if delayed, next month, we will open a web site on which all FW updates (including the VBM19C1Q, with ATA-TRIM) and tools will be available for easy update all devices PM800.
Unfortunately, the SSD model MMCQE28GFMUP-MVA is not supported in this FW update (it is not PM800 series) and there will be no support for TRIM in the future.
We do sincerely apologize for the inconvenience using our products
I have E6400 with Vista SP1. When I tested hard disk using HDtune, the burst rate is always much lower compared to the transfer rate. I already tried Seagate, WD, Toshiba, they're all the same.
But if I look benchmark from other users (they don't use Dell though), the graph is different. Here is what I have: My graph: the burst rate is always low. E6400 users, can you test yours and let me know?
I have a inspiron 1545 laptop, and every now and then randomly it turns itself off. I think it's overheating, but don't know how to adjust the fan speeds (if you can) and i took the back off and cleaned round the fan, so it's not blocked up. It might be something else causing it to turn off i'm not too sure.
First of all it runs in Windows completely rock solid. I have ran stress utilities for over 24 hours, and the system is completely stable.
My problem is that it is very unstable before windows loads. For example, if I simply leave it in the BIOS setup for 5 minutes the computer will just power off. It is also quite hot underneath. This occurs also if I boot from DOS (or other e.g. XP recovery disk) boot disk to run some utilities - the system will run for 5 minutes or so, and then just power off. The time that I get before it powers off decreases if I immediately switch it on again, suggesting an overheating issue. I did not have this problem when I first got the laptop 3 years ago.
This problem is really annoying as I want to run some low-level utilities to repartition my hard disk and also possibly reinstall windows, but this problem is preventing that.
Any ideas? Perhaps some strange software that I installed? ACPI config? Memory issue? BIOS issue? Computer is hot in several areas under where the CPU / TV tuner / graphics / memory are located .
My system spec: - Pentium M 760 2GHz - Ati X700 256MB graphics - 2GB crucial RAM (2 x 1 GB DDR2 533 CL4) (upgraded from 1GB over a year ago and fully tested to be working) - Newest BIOS from Acer installed
From system information:
OS NameMicrosoft Windows XP Home Edition Version5.1.2600 Service Pack 3 Build 2600 OS ManufacturerMicrosoft Corporation................................
Let me first start by asking your forgiveness if I have stuffed this quick little guide in the wrong spot. I spent a rather brief 10 minutes searching this forum, and I don't believe I am repeating a write-up someone has already done that follows this simple method. If I am incorrect, I ask a moderator to please place this post in its proper home. As you can see, I am not an avid poster here, and I really don't want to be slammed for not searching with enough gusto, etc.
Alright, on to the quick 'n easy...
I have a new VGN-AW235J, so proceed with courage and fortitude if our letters don't match. I found this as I was trying various ways to cleanse this beautiful machine of it's bloatware. It worked for me, and that is all I will claim.
This method requires that you create the restore DVDs.
If you don't have a handful of restore DVDs, go do that now and come back...and while you're up, bring a snack.
One more disclaimer: I didn't take the greatest notes while doing this, so my instructions may be sufficiently vague to cause minor trepidation on the part of the reader. With that being said, each step should be fairly obvious while in front of your machine...DVDs in hand..........................
I have a Dell Inspiron 640m 14.1" laptop. I cleaned screen with foam and some foam flow under the screen frame, where the LCD inverter is. 1/3 of the screen (lower part) started to shudder (horizontal stripes appeared) and after some time this part stay brighter than other 2/3 upper part of the LCD. Motions on the brighter part are slow, mouse arrow movement is like in jelly. Text is hard to read. See added photo about LCD. Is it a LCD problem or inverter problem? What component needs replacement?
i going to buy a inverter for my car so i can charge and us my laptop in my car while i am on the road. the inverter i am getting has a max output of 175watts. does anybody know how much power in watts the xps 16 uses?
I purchased a lid, bezel, and cable, too. But the cable has a blue connector that looks like it would connect to the inverter. Is there actually an inverter board that goes just below the led lcd screen? If so, does anyone know the part number?
At first the screen was lightly flickering once in a while and it became more and more frequent. Then it started to get black, more and more black. Within 2 days it became completeley black Now it is impossible to see anything even using a flashlight it seem completely dead.
I was told by a tech that the inverter board is dead.
I took the computer apart using help I found on the net and the Inverter board is finally in my hand
I’m trying to purchase a replacement but it is confusing.
The actual number on the board is PK070007U00-A00-6AH-02995
But when I go shopping on the net I only find reference for PK070007U00-A00
I have a laptop which has a dim screen, I am not sure if its the inverter or the back light that needs to be replaced. Its a Sony FS-740/w series laptop. I want to be sure which one needs to be replaced so that i can order it online. way to check if the inverter is working correctly.
The inverter flaked out in my Inspiron 6000, so I ordered a new "compatible" (same part number/specs, different design) inverter, which does work, only if the LCD is outside of the chassis.
Once the LCD is placed back into the chassis, something grounds and the inverter does not work. Once I take the screen back out of the chassis, it works fine. I'm not sure what could be grounding it or causing it not to work
I am looking for a reliable car power inverter for my 2007 Macbook Pro. My car has 2 power outlets (12V / 120W). I know there is a 15A fuse, so the maximum it can handle is 180W, but of course I do not want to take that risk and stay around the recommended 120W. Because of this, it limits the number of choices I have concerning power inverters. I have seen one from Duracell called the Pocket Inverter 100. Here are the specifications:
AC Output Power (Max Continuous): 80W AC Output Power (Peak): 100W AC Output Surge Capacity (Peak): 160W AC Output Voltage (Nominal): 120V AC Output Waveform: Modified Sine Wave
So, this leads to a few questions:
(1) The MBP Magsafe Adapter requires 85W. However, this inverter can provide only 80W of maximum continuous power. Will this be sufficient to charge and run the MBP in the car?
(2) I searched around and read a few posts by others regarding pure sine wave and how it is important to have it running to laptops. Now, this inverter has an output of a Modified Sine Wave. Will this be fine and will the Magsafe adapter be able to handle this?
(3) recommendations for car power inverters within these specifications?
I have a dell inspiron 600m laptop and my screen is dimmed out. If I turn of my laptop and restart it, the display will come on for a second ( but it is a little bit reddish) and then I hear a noise and it light goes off, and I can;t see anymore. However, I am sure the computer is still running properly
I am sure that the computer is on, and is functioning properly for two reasons:
1- if it is sunny, i can see my desktop, and what ever I have open, be that a browser, a word document, so on and so forth
2-when i connect my laptop to an external display everything is fine...
My screen went black. Did some research and found it it was most likely the inverter.
I replaced the inverter but it still flickers and then goes black while its booting up.
How can I tell if this is the back light or if this is the lcd itself? I've heard the backlight is hard to replace and I might have to take it somewhere to have it done which would cost $$ .....
i have a sony vaio c2z - nvidia geforce 7400; x-black lcd
i have had a lot of problems with my display since august. although i didn't notice at the time, it happened soon after i installed the Win 7 RC.
when i start the laptop up the screen looks all distorted and the colours arent correct:
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but when i take screencaps and connect it to another monitor everything looks fine.
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i assumed the screen was knackered, but i installed a game a few weeks ago and it brought the display back to life, only for it to look crap again when i restarted. this also happened when i did a clean install of vista, only for the display to go bad when the updates installed.
i have tried many times, but have been unable to replicate this...............
