White stripes on display - Sony Ericsson K750

For fixing this problem you need to replace the LCD of your Moto. Buy the new LCD and get an T6 screwdriver, as for Nokia screws. This is not very difficulty to replace.

You can use either T 568 A or B providing that both ends of the cable are wired in the same format. If one side is allready ended thenI would try T568 B standard first.

Pin T568A Pair T568B Pair Wire T568A Color T568B Color Pins on plug face (socket is reversed) 1 3 2 tip
white/green stripe
white/orange stripe 2 3 2 ring
green solid
orange solid 3 2 3 tip
white/orange stripe
white/green stripe 4 1 1 ring
blue solid
blue solid 5 1 1 tip
white/blue stripe
white/blue stripe 6 2 3 ring
orange solid
green solid 7 4 4 tip
white/brown stripe
white/brown stripe 8 4 4 ring
brown solid

From left to right:

1. White/Orange stripe
2. Orange/White stripe
3. White/Green stripe
4. Blue/White stripe
5. White/Blue stripe
6. Green/White stripe
7. White/Brown stripe
8. Brown/White stripe

Hope this helps!

Hi, I had a similar problem and fixed it. Open the calculator and you will see that the ribbon connecting the LCD to the PCB has white and black stripes. The black stripes are the actual conductors. The white pieces are isolation between the conductors and serve the purpose of glueing the ribbon to the PCB.

Take a small flate screwdriver, its thickness has to be that of the white stripes. Heat up the end of the screwdriver with a hot air gun/lighter/hair blowdryer or whatever. Dont make it too hot. It should only be hot enough to melt the glue holding the ribbon to the PCB. Press the screwdriver on a white stripe and move the screwdriver up and down the white line which is on the PCB. Do this for each white stripe individually. Reheat the screwdirver if necessary, since there are a lot of tracks/stripes to cover.

It may be useful to use two screwdrivers: one to heat the glue of a white section and a second to cool/set the glue so that the ribbon is held in place, instead of coming loose because the glue is too hot. I did it only with one mildly hot screwdriver. It shouldn't be so hot that it actually burns you. You can test the temperature by pressing it against a hot melt glue stick (those used in a glue gun), if it melts the glue (but not too quick) it is hot enough.

It is unlikely that the ribbon came loose from the LCD, but if the previous didn't work you can try doing it on the LCD aswell.

Good luck!

Straight Cabling :

Side 1 Side 2
White Orange White Orange
Orange Orange
White green White Green
Blue Blue
White Blue White Blue
Green Green
White Brown White Brown
Brown Brown


Cross Cabling :


Side 1 Side 2
White Orange White Green
Orange Green
White Green White Orange
Blue Blue
White Blue White Blue
Green Orange
White Brown White Brown
Brown Brown

Hope this helps. Please rate my response.
Thanks.
Have a good day.

white screen problem

Try Booting To An External Monitor If able to...
If Display is Normal In It, Your LCD Display Panel Is Bad... The Circuit Board Attached to the Display Panel has Gone Bad...


But If You Hook It Up To External Monitor and It Doesnt Work...
Your Video Card/Chip is bad

Check this link.

Sounds to me that you have a bad connection/wire to the CCFL bulb on that side of the display. Should be an easy fix, do it your selfer thing.