6270 lcd no light
 

I have a 6270 damaged by water.
I remove oxide, and after that the phone works fine but there isn't light on display. Keypad light works fine.The display is ok.

I see schematic but there is only the main board. I need upper side scheme.
Thanks in advance.
Best regards

Did u try changing flex and checked both flex connectors?Problem might be caused by UI PWB (upper PWB) try changing this.

BR Janar

white led on upper side works fine...

I think that water damaged a wire, so I need upper side scheme

search and you have the solution.......

before to open this thread I have used search button with key: 6270 lcd light , but I don't have found solution...

u may check lcd, UI board, flex cable, connector, led driver ( behind tahvoo )



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Byte

thanks for reply, I am sure that:
-lcd works fine;
-flex cable works fine;
-main board works fine;

lcd board was damaged by water so a wire was interrupted and into schematic there isn't scheme about lcd board...
I don't know the pin with lcd backlight into lcd connector.
Thanks in advance
B.R.

into lcd board I have 18V, but probably there is a wire broken...
I am looking for lcd connector pinout
Thanks in advance
B.R.

check the 18v path from working UI board!



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Byte

...I don't have a working lcd board...

With the picture posted by vinay_sharma i fix my problem.
Here the solution:

http://forum.gsmhosting.com/vbb/show...&postcount=479

Many thanks to vinay_sharma :)

patrik .b
i have same prob can you explaine that pic (vinary_sharma)
the up kepad ligth work but LCD light is not work ?