Monday 25 July 2011

Nokia 2700c backlight not working problem ways solutions jumpers tips and tricks of Nokia 2700c backlight not working problem.

Nokia 2700c backlight not working problem ways solutions jumpers tips and tricks of Nokia 2700c backlight not working problem.
Here are the links of repairing diagrams of Nokia 2700c backlight not working problem ways solution.
you can solve easly Nokia 2700c backlight not working problem by the repairng diagrams of Nokia 2700c backlight not working problem which are given below.
If you have some knolage about repairing so you can easly pick the repairing process of Nokia 2700c backlight not working problem which is shown in figure.

If you can't understand the repairing diagrams which are given below so don't worry.
I am also giving you a littel discription of this image.

Here is the discription of Nokia 2700c backlight not working repairing diagram.

Here is a solution for Nokia 2700 with display backlight problem and shows a dark screen.

If you already tried replacing the LCD module, but still the problem persists, please refer to this solution below it shows a few tips on how to solve the problem.
Find the parts below the PCB and 2700c do some test and check-up procedures.

Note: This solution can work if the keyboard backlight LED works and only the LCD screen has no illuminating light.
From the LCD pin connector route of the backlight of the screen positive LED (LED +) and negative LED (LED) power line connecting paths to the parts where it is connected. There is a test spots on the board where you can also trace his connection.

Check the resistor and capacitor in the vicinity of the LCD-pin connector and then replaced if found faulty or damaged. You do not need the LED driver chip to control, except when the keyboard works OK LED.

If both the keyboard and display lights do not work, the problem may lies on the LED driver IC. Check 3.7V on the first filter coil before the LED driver chip to replace the 2700c.
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  1. Nokia 2700c backlight not working problem ways solutions jumpers tips and tricks of Nokia 2700c backlight not working problem.

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