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hotter · Posted: Mon Jul 28, 2008 12:36 pm Post subject: m55 and blue led

I have put the blue led (smd 0603) to my m55, but there is no light. Well there is the light but it is very very very hard to see it. Very Happy

I think blue leds need more voltage, I think I need to bridge some resistance but where and which? Rolling Eyes

hotter · Posted: Mon Jul 28, 2008 1:32 pm Post subject:

Maybe this is what should i bridge:

Am I right? d'oh!

hotter · Posted: Mon Jul 28, 2008 8:15 pm Post subject:

maybe someone could translate from slovak:
Musis vediet aky odber maju tie modre ledky, tie ktore su tam je hodnota 100ohmov nachadzaju sa hned pri ledkach. Mozes ich kludne vymenit. Ak budu svietit slabsie musis dat mensi odpor.
?

DarkLegion · Posted: Mon Jul 28, 2008 10:26 pm Post subject:

I try it

so you must know how high voltage need this LEDs...theese which are here normally have 100Ohm resistor...if the blue Leds don´t light...you must change resistors...use resistors with smaller resistivity...70-80Ohm for example...

p.s. sorry for my english Mr. Green

hotter · Posted: Mon Oct 27, 2008 1:24 pm Post subject:

Well I decided to do this hard work.

(I made everything with one of these 4 resistors and one led next to that resistor)

I added 150ohm resistor and old 100ohm parallel, so both rezistors make 60ohm resistance, but the blue led still shines very little, like before Sad

I even tryed to bridge the resistors but blue led shines the same Sad

Why is that? I am working with wrong resistor? Or maybe I need to do this with all 4 resistors and leds, maybe then it will work?
Any ideas? Think

stream · Posted: Mon Oct 27, 2008 4:21 pm Post subject:

you need a parallel resistance for reduce the resistance

hotter · Posted: Mon Oct 27, 2008 5:30 pm Post subject:

sorry for my english, thx for making me right Very Happy

I made parallel resistance, but led shines the same Sad

how can it be?

hotter · Posted: Wed Oct 21, 2009 4:10 pm Post subject:

Just found this if someone will need tut how to change led too:
m55 led change

ViSoft · Posted: Wed Oct 21, 2009 8:24 pm Post subject:

So You finally made it? Or do You still need some advice?

hotter · Posted: Wed Oct 21, 2009 9:05 pm Post subject:

Well now everything is clear, but I stick with original red leds because I have not get black magic cover Sad

Maybe someone know where is it posible to get it? But anyway I guess it will cost a lot....