nokia 8210 - after repace diods from green to blue, diodes still power on - GSM-Forum

PSG · 01-24-2004, 14:28

hi
i have nokia 8210 - after repace diods from green to blue, diodes still power on, even on off phone. maybe one of diodes should be inverted in line f three other to off them all
need help

i made that, LCD ligh only:
+- +- +- left side of LCD
-+ -+ -+ right side of LCD

maybe one of diodes shoulcd inverted, i forgot to chech bfore removing original diodes

ARS · 01-24-2004, 20:21

check jour soldering. You made some shortcut, propably to GND. For LED placing look into a service manual.

Medz · 01-24-2004, 21:55

If U reverse a LED it'll not work , cause it is unidirectional electron flow device.
As ARS sayes , U makes a short to ground at one of the 4 LED's Kathod ( they'r all
connected in paralell 4 anodes to +Ve , and 4 cathodes to N310 pin 9.

PSG · 01-26-2004, 11:59

@ARS
could you send me manual for LED placing into 8210?
thanks

GSM Coolhawk · 01-26-2004, 13:10

@PSG

You may go to this website here and take a look of the LED fitting guides they have. These guides is courtesy of the website www.bluled.co.uk which went offline from the net last year !

Regards

PSG · 01-26-2004, 16:23

still no good news

i solder only 1 LED and if i connect batery to phone this one LED is lighting
how can i check that i made short to GND?
maybe i have to solder all LED's to disconnect them untill i press power ON?

Medz · 01-26-2004, 20:26

@PSG..

Here is a photo to the LED connection in 8210 , as U see any short at any
point causes all the others to act , if U needs shematic try this link :

http://www.id2.cz/service_manuals/No...210_level3.rar

Goodluck

Medz · 01-26-2004, 20:33

I forgot to attach the picture

PSG · 01-31-2004, 12:37

i repair this by replacing n310 (NMP70433) from nokia 3310
this chip stering diodes and sound in 8210 & 3310

01-24-2004, 14:28	#1 (permalink)
PSG No Life Poster Join Date: May 2003 Location: POLAND Posts: 1,262 Member: 27761 Status: Offline Thanks Meter: 55	nokia 8210 - after repace diods from green to blue, diodes still power on hi i have nokia 8210 - after repace diods from green to blue, diodes still power on, even on off phone. maybe one of diodes should be inverted in line f three other to off them all need help i made that, LCD ligh only: +- +- +- left side of LCD -+ -+ -+ right side of LCD maybe one of diodes shoulcd inverted, i forgot to chech bfore removing original diodes

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01-24-2004, 20:21	#2 (permalink)
ARS No Life Poster Join Date: Dec 2000 Location: Slovakia, Brezno Posts: 980 Member: 2721 Status: Offline Thanks Meter: 23	check jour soldering. You made some shortcut, propably to GND. For LED placing look into a service manual.

01-24-2004, 21:55	#3 (permalink)
Medz No Life Poster Join Date: Sep 2003 Age: 66 Posts: 807 Member: 39601 Status: Offline Thanks Meter: 13	If U reverse a LED it'll not work , cause it is unidirectional electron flow device. As ARS sayes , U makes a short to ground at one of the 4 LED's Kathod ( they'r all connected in paralell 4 anodes to +Ve , and 4 cathodes to N310 pin 9.

01-26-2004, 11:59	#4 (permalink)
PSG No Life Poster Join Date: May 2003 Location: POLAND Posts: 1,262 Member: 27761 Status: Offline Thanks Meter: 55	@ARS could you send me manual for LED placing into 8210? thanks

01-26-2004, 13:10	#5 (permalink)
GSM Coolhawk No Life Poster Join Date: Dec 2001 Location: United Arab Emirates, Dubai Age: 52 Posts: 1,269 Member: 7751 Status: Offline Thanks Meter: 74	@PSG You may go to this website here and take a look of the LED fitting guides they have. These guides is courtesy of the website www.bluled.co.uk which went offline from the net last year ! Regards

01-26-2004, 16:23	#6 (permalink)
PSG No Life Poster Join Date: May 2003 Location: POLAND Posts: 1,262 Member: 27761 Status: Offline Thanks Meter: 55	still no good news i solder only 1 LED and if i connect batery to phone this one LED is lighting how can i check that i made short to GND? maybe i have to solder all LED's to disconnect them untill i press power ON?

01-26-2004, 20:26	#7 (permalink)
Medz No Life Poster Join Date: Sep 2003 Age: 66 Posts: 807 Member: 39601 Status: Offline Thanks Meter: 13	@PSG.. Here is a photo to the LED connection in 8210 , as U see any short at any point causes all the others to act , if U needs shematic try this link : http://www.id2.cz/service_manuals/No...210_level3.rar Goodluck

01-31-2004, 12:37	#9 (permalink)
PSG No Life Poster Join Date: May 2003 Location: POLAND Posts: 1,262 Member: 27761 Status: Offline Thanks Meter: 55	i repair this by replacing n310 (NMP70433) from nokia 3310 this chip stering diodes and sound in 8210 & 3310