1600 Led Problem-checked All Components In Led Path-no Scope-help - GSM-Forum

zone2 · 10-29-2007, 10:29

I Have A 1600 Led Problem(both Display And Keypad)-means No Led.

I Checked All Paths/components In Led Path.
1.display
2.led Connector
3.vbat To Led Ic N2400
4.led + Amd - To Lcd Connector Pin 6,7
5.v2401 And Surrounding Components
6.flashed Also
Checked Resistance By Comparing A Good 1600 Board-all R Ok-still No Led .
So I Think Its Not A Problem In Led Path.

I Think Its Problem In Communication In Between Upp And Uem.have Any Friends Got Same Problem?

Thank U

zone2 · 10-29-2007, 12:11

Quote:

Originally Posted by juniour member

change light ic or transter

like this pic

best regards

www.******************.net

www.******.***********.com

I ALREADY CHECKED ALL ABOVE PATHS/COMPONENTS-REPLACED IC AND TRANSISTOR ALSO FROM GOOD WORKING BOARDS(TO CONFIRM)-STILL NO BACKLIGHT--HELP ME

zone2 · 10-30-2007, 16:58

its the coil problem in led path-never check continuity of coil to idenfify it good or bad-must replace it after check led ic and transistor.

set ok-thank u

bhogpurmail · 10-30-2007, 17:10

search on this forum for lcd ways ,

Mind Power · 10-30-2007, 17:15

bro try to apply jumper i have solve this problem

Mourad120 · 10-30-2007, 21:12

Quote:

Originally Posted by bhogpurmail

search on this forum for lcd ways ,

Quote:

Originally Posted by Mind Power

bro try to apply jumper i have solve this problem

i guess he already managed to fix his problem (coil related problem) ..just check above .

B.R .........

zone2 · 10-31-2007, 07:14

Quote:

Originally Posted by bhogpurmail

search on this forum for lcd ways ,

many guys just add their number of posts-did not read-i solved my problem-please read all before post

INOVASI · 11-01-2007, 17:16

There is ultimated solution for you light problem.
no need N2400 no need W2401 (remove)
Just modif led circuits way from seri to pararel 100% test by me on 1110,1112,1600,6030,2310,2610 all successfull

more info go ==> Click

Br,

Inovasi

10-29-2007, 10:29	#1 (permalink)
zone2 Freak Poster Join Date: Oct 2007 Location: KERALA Posts: 332 Member: 609370 Status: Offline Thanks Meter: 13	1600 Led Problem-checked All Components In Led Path-no Scope-help I Have A 1600 Led Problem(both Display And Keypad)-means No Led. I Checked All Paths/components In Led Path. 1.display 2.led Connector 3.vbat To Led Ic N2400 4.led + Amd - To Lcd Connector Pin 6,7 5.v2401 And Surrounding Components 6.flashed Also Checked Resistance By Comparing A Good 1600 Board-all R Ok-still No Led . So I Think Its Not A Problem In Led Path. I Think Its Problem In Communication In Between Upp And Uem.have Any Friends Got Same Problem? Thank U

11-01-2007, 17:16	#8 (permalink)
INOVASI Freak Poster Join Date: Mar 2005 Location: http://inovasi-mobiles.com Age: 41 Posts: 102 Member: 132070 Status: Offline Thanks Meter: 121	ultimated light solutions There is ultimated solution for you light problem. no need N2400 no need W2401 (remove) Just modif led circuits way from seri to pararel 100% test by me on 1110,1112,1600,6030,2310,2610 all successfull more info go ==> Click Br, Inovasi

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10-30-2007, 16:58	#3 (permalink)
zone2 Freak Poster Join Date: Oct 2007 Location: KERALA Posts: 332 Member: 609370 Status: Offline Thanks Meter: 13	its the coil problem in led path-never check continuity of coil to idenfify it good or bad-must replace it after check led ic and transistor. set ok-thank u

10-30-2007, 17:10	#4 (permalink)
bhogpurmail Registered User Join Date: Oct 2005 Posts: 1,057 Member: 189506 Status: Offline Sonork: 100.1576871 Thanks Meter: 126	search on this forum for lcd ways ,

10-30-2007, 17:15	#5 (permalink)
Mind Power No Life Poster Join Date: Aug 2006 Posts: 625 Member: 338106 Status: Offline Thanks Meter: 55	bro try to apply jumper i have solve this problem