Dell Inspiron Mini 10” Laptop White Screen Display Repaired
Received dell inspiron mini laptop with complain of white screen fault. Started primary visual inspection from outer side; seems ok no physical damage. Powered the laptop I heard booting single beep, indicates laptop is started processing. Following are main reasons for this type of fault.
1) BAD Graphics Circuit
2) Screen itself Bad
3) LVDS (Display) Cable loose or bad.
We have to segregate & check above sections one by one. So for fault finding first step is to connect external monitor on laptops VGA Port and see if display is ok then graphics circuit is ok & fault is with either screen or LVDS Cable area.
So as soon as I connected external monitor I got the display. This indicates Graphics circuit on the motherboard is ok. Now it is time to look inside the laptop. So I disassembled the laptop…..
Removed & checked LVDS cable connector for loose Connection on motherboard seems OK.
Turn on laptop after re fixing the connector to see effect on screen ……. but same problem.
Now removed Motherboard out of the casing. To find any physical damage …. Found everything is ok there is no physical damage or burn marks.
Now time to check LVDS Cable & laptop screen out of the casing.
Cleaned LVDS Cable with IPA, re attached the cable to see the effect…. still same problem.
Now while tracing the cable under the Hinge side look what I found….
Found one broken wire under the screen …. looks like someone already worked on before ….Re soldered the wire & turn On the laptop…. & screen is back to the life……
After insulating the wire using masking tape reassembled the laptop & kept on testing 4 to 5 hrs. it works without problem & now it is ready for the pickup….
This article was prepared for you by Yogesh Panchal who works as a Computer Hardware Engineer in Mumbai India.
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Note: You can check his previous repair articles on Lenovo Laptop With Disk Read Error Fixed