Blue LED help

[Beef]

Ive just fitted some Blue LEDS but they wont work.Ive soldered them in all the right way up and cathode in the right place but they mont light up.Ive checked them with a multimeter and when the phone [8210] is on electricity passes through them.Im stuck and dont know what to do.

[Freestyler2000]

Hi<br />You should change all LEDs<br />Then you will not have any problem.

[Sekoel]

Like Freestyler2000 say's you must remove all the green leds on the keyboard and/or the display. Because the are not connected to the same power supply you don't need to do them both. So you can change the keyboard and/or the display in a different colour. If you need to know how the leds are fitted I can send you a drawing.

<br />Regards,<br />Fallen <img src="rolleyes.gif" border="0">

[gurmk]

Check your Email and let me know if you need any more help.

[Beef]

Ive done the installing of the LEDS correctly.The leds have a black dot inside that I assumed was the cathod line.Is the LED burnt out?

[Freestyler2000]

Hi Beef<br />Let me tell you how I change them.<br />First remuve all green LEDs.<br />After that I get one blue and as the phone is on (just the bord)I fit the LED so it tuches the soder pads. In that way I make it light and soder it. So I have found the proper way of fiting the LED. Now I have the multimeter and fit the others<br />Best regards<br />Daniel

[josaic]

hi beef! <br />This is a step by step information on how to change your LED in your phone.

<a href="http://mobil.box.sk/blue.php3" target="_blank">http://mobil.box.sk/blue.php3</a>

Get it??<br />Cheerz

[bluelights]

i bet you i know what your problem is!!!<br />i had the same

what it is, there was a large batch of l.e.d's which were manufactored witht the cathode direction printed the wrong way round, so if you reverse all the l.e.d's im sure your problem will be resolved, this is only on the 0603 bulbs,

also remember that u cant change just 1, start witht the screen, remove all blue l.e.d's and swap them around so the cathode is facing the other way, just put one on and hold it on, now put in battery and turn on phone, 1 blue l.e.d should light up!!!!

i have had 3 out of about 20 batches which have been printed the wrong way round

hope this helps

nick<br />mobilexchange