Showing posts with label led. Show all posts
Showing posts with label led. Show all posts
Monday, November 17, 2014
Nokia N97 Qwerty Keypad Keys Backlight LED failure solution
Heres a solution for Nokia N97 backlight LED on the QWERTY keys not working or failed to light up.
This solution can be used if the keypad membrane flex is not damaged but the LED backlight still wont light up.
The solution above shows the qwerty keypad backlight LED circuit, it is composed of LED driver IC and filtering Resistors. These Resistors has a 0 ohms resistance value, you may check first these resistors before troubleshooting further.
The LED driver needs the Battery Voltage which is 3.7 volts that came across with red color highlighted component Resistor, check that voltage and continuity to the battery B+ terminal.
If all the Resistors were okay, you may then proceed to check or replace the LED Driver IC.
This solution can be used if the keypad membrane flex is not damaged but the LED backlight still wont light up.
Nokia N97 Backlight LED Not Working Solution
The LED driver needs the Battery Voltage which is 3.7 volts that came across with red color highlighted component Resistor, check that voltage and continuity to the battery B+ terminal.
If all the Resistors were okay, you may then proceed to check or replace the LED Driver IC.
Thursday, September 18, 2014
Nokia X6 LED LCD light problem solution jumpers ways 100 Tested
Nokia X6 with Blank Display, Blinking Display, Display Light Jumpers, Display Light Problem, Display Light Solution, Display Light Ways, Keypad Light, LCD Display Light, Nokia, White Display
If the light is not workin in the X6 and LCD monitor or keyboard did not work then you can solve this problem by following these few steps that I am writing this post.
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just look at the schedule given by post in there are two lines going from LCD jack check this links and also verify that all components are enlined with multi colors all these parts are used in LED lighting and LCD light function in the Nokia x6.so replacement this or parts supplied to LED Light problem and dim-lit LCD display problem in the X6.
for more detail and new tips and tricks about this problem keep visiting this page we will update it timely with new diagrams.some related post are also given bellow you can read them also for more information
If the light is not workin in the X6 and LCD monitor or keyboard did not work then you can solve this problem by following these few steps that I am writing this post.
just look at the schedule given by post in there are two lines going from LCD jack check this links and also verify that all components are enlined with multi colors all these parts are used in LED lighting and LCD light function in the Nokia x6.so replacement this or parts supplied to LED Light problem and dim-lit LCD display problem in the X6.
for more detail and new tips and tricks about this problem keep visiting this page we will update it timely with new diagrams.some related post are also given bellow you can read them also for more information
Wednesday, September 10, 2014
Nokia 5630 Not Working Display Backlight LED Repair Solution
Nokia 5630 LCD Display Backlight Solution
Monday, August 25, 2014
2700c Keypad Led how to fix problem
the following article. Nokia 2700c Keypad Led Ways and Jumpers
information can also be found in the diagrams further in this post.
In Nokia 2700c Keypad Light Problem can occur because of the faulty
Led Drivers or it's bad connection to the Cell Phone's Motherboard.
Before doing any hardware solution you should clean Nokia 2700c Keypad
Led Ways Lights IC and Motherboard of the Mobile Phone. If cleaning
does not work then you can replace the Lights IC.
Please Note that we will edit these solutions or add new ones if found
in this page at any time in the future. So feel free to come back any
time on this page to stay up to date.
If you have further Questions please don't hesitate to leave a comment.
Note: Every repairing solution posted here is tested by at least one
member of our team. Use the information available here at Your Own
Risk. We are not responsible if any harm comes to your device during
the repairing process.
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