The pc star ok but it keep given me a white screen
The computer boot fine using an external monitor but went i change monitor it keep given me a white screen; no error code, i did hard reset. the bios is updates, the computer had lates upgrades, no virus: i wander if could be the inverter cous the screen look lighted no burned pixel.no charapter no nothing not a sound.Please anyone advice.
Hp Pavilion TX1220 us.
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Re: the pc star ok but it keep given me a white screen
It is possible that the problem in the slide card that beats screen located on the main board and the faults which also appear on-screen plasma appearance of a white image on the screen or the colors are without any data. Easy to verify the integrity of the slide card that beats the screen by pressing of Touch Pad or the left part of Keyboard to the East, including notes. When connecting to an external monitor with no emergence of data Among these symptoms we see that it is clear that the device temperature was high because of heat produced following larger processor and thus the slide master ICH Card and slide the screen. However, the slide of the type Intel does not notice the high levels of heat and when exposed to heat the welding related Qdanvsal on the main board of the parent on the board
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Try firstly removing the laptop's
battery as it may be at a critical voltage and the system will not
start because of it. Plug in your ac adaptor and monitor what
happens. Does the power light illuminate? If it does it should then
boot up, if it doesn't, try a known good ac adaptor before going any
further. If the adaptor is fine then you have a mother board fault
and should contact a dealer/repairer for further advice. Hope this
You have identified your problem/fault by plugging in an external monitor and the image is OK. This proves the video card is OK and the fault could be the inverter or most likely the CCFL lamp.
The flickering screen indicated the CCFL lamp is faulty, it is a mini fluro tube which provides the back-light to the LCD. The inverter supplies high voltage to the CCFL lamp. It could be faulty and it is easier to replace.
For service, parts and DIY info check out LCD Parts - use this link to their WEB site : - www.lcdparts.net
You can update graphics driver, if that does not fix the issue check the display on external monitor. If the external monitor works fine you can isolate checking the display in BIOS Setup scree (Restart your computer and keep tapping F10 to getinto BIOS). If the same issue in BIOS, you may have to change display of the unit.
The display properties indicate the hardware is working, so it's likely just a setting.
On HP/Compaq models you will see a picture, usually on the F4 key that looks like a screen with two lines beside it.
You need to hold down the Fn key(bottom left) and then push the F4 key at the same time to cycle between LCD, external or both.
If it is a newer model, a menu will pop up when you do this asking if you want to duplicate the LCD on the external, switch to the external or extend the desktop onto the external. Select the appropriate setting or continue holding down Fn while pressing F4 to cycle between the settings to the one you want.
If you have re-installed the computer at some point with anything other than the factory recovery set this may not work and I will have to give you a longer set of instructions.
If this works please rate this as fixed, if not reply back and indicate what version of windows you're using and I will post the instructions for the "long" way.
You're first step should be to plug an external monitor to it to make sure the video card still works. In all likelyhood, the video inverter (located behind the bezel for the screen) went bad and needs to be replaced, but it's good to know whether or not the computer itself is still putting out video
Look a the screen real close, if you see a faint dark version of the image, this could be a backlight issue, otherwise a screen cable or a logic board issue. Backlight repairs are somewhat difficult. As much as I would like to be able to tell you a quickfix that will solve backlight the problem, it's a pretty arduous repair that requires 1-2 hours for a trained person. It's feasible to do it yourself if you're tech savy, but you'll most likely have to google for guides that show you exactly how to replace the backlight step by step. Check on how to take the screen apart and make sure inverter is still connected properly. If so, you have a backlight issue. I work for Computer Repair NYC and i have to fix this problem a lot, it's so easy to break the lightbulb in the process.
To confirm that indeed you laptop CPU is working normally, you can try plugging an external monitor. This will also verify that your onboard video or memory is not the issue.
Assuming you have tried the above, as to the screen flashing, it can probably be the LCD panel display. It can either be the video converter or your backlight inverter (or CCF fluorescent tube). Any of the two would require opening the display panel and component level repair. Should you not be comfortable cracking the display open and circuit analysis/diagnosis, you may need the services of a qualified professional.
Hope this give you an idea and work out for you. Good luck and post again how things turn up or if you need further information. Kind regards.