1600 Backlight Problem - GSM-Forum

asmanju08 · 09-01-2009, 10:12

Hello everybody i have one 1600 handset its all display n lights traks are ok but still no light ..vbat ok,transistor ok one more thing its not show 14 to 17 volt on vled+ capacitor i am change the backlight ic but still same problem 00 voltage one vled+ Capacitor pls any one help me..........

**.:SARCAR:.** · 09-01-2009, 10:51

replace the coil if same check light ic track , post result

asmanju08 · 09-01-2009, 11:26

Light ic tracks is ok i m change the coil also but problem is same...

mahbubalfa · 09-01-2009, 11:37

Quote:

Originally Posted by asmanju08

Light ic tracks is ok i m change the coil also but problem is same...

Bro.chack battry (+) line...............

asmanju08 · 09-01-2009, 11:49

Nice detailed picture but how many tracks show in picture those all are correct i mean track is ok .but still no voltage on vled+

mahbubalfa · 09-01-2009, 12:17

Quote:

Originally Posted by asmanju08

Nice detailed picture but how many tracks show in picture those all are correct i mean track is ok .but still no voltage on vled+

Bro..apply this rad mark jumper............

haseeb71 · 09-01-2009, 13:29

Dear ,
remove ic kpad led then open lcd in back side leds plugs in both side same ++ -- two wires attach it and soldering postive side for
transistor up negative ground it
all ok 100% working
haseeb aslam

asmanju08 · 09-01-2009, 15:21

Bro if tracks are ok n vbat show on coil 4 volt then why should make this jumper. think before post all tracks are ok but no backlight its confuseion

09-01-2009, 10:12	#1 (permalink)
asmanju08 Freak Poster Join Date: Aug 2009 Location: Bharat Posts: 347 Member: 1087883 Status: Offline Sonork: 100.1651719 Thanks Meter: 38	1600 Backlight Problem Hello everybody i have one 1600 handset its all display n lights traks are ok but still no light ..vbat ok,transistor ok one more thing its not show 14 to 17 volt on vled+ capacitor i am change the backlight ic but still same problem 00 voltage one vled+ Capacitor pls any one help me..........

09-01-2009, 13:29	#7 (permalink)
haseeb71 Crazy Poster Join Date: Jan 2005 Location: KUWAIT/PAKISTAN Posts: 55 Member: 106181 Status: Offline Thanks Meter: 12	1600 display light sloution Dear , remove ic kpad led then open lcd in back side leds plugs in both side same ++ -- two wires attach it and soldering postive side for transistor up negative ground it all ok 100% working haseeb aslam

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09-01-2009, 10:51	#2 (permalink)
.:SARCAR:. Moderator Join Date: Jul 2006 Location: Midnapore,West-Bengal,India Posts: 5,402 Member: 322206 Status: Offline Sonork: 100.1594813/.:SARCAR:. Thanks Meter: 1,350	replace the coil if same check light ic track , post result

09-01-2009, 11:26	#3 (permalink)
asmanju08 Freak Poster Join Date: Aug 2009 Location: Bharat Posts: 347 Member: 1087883 Status: Offline Sonork: 100.1651719 Thanks Meter: 38	Light ic tracks is ok i m change the coil also but problem is same...

09-01-2009, 11:49	#5 (permalink)
asmanju08 Freak Poster Join Date: Aug 2009 Location: Bharat Posts: 347 Member: 1087883 Status: Offline Sonork: 100.1651719 Thanks Meter: 38	Nice detailed picture but how many tracks show in picture those all are correct i mean track is ok .but still no voltage on vled+

09-01-2009, 15:21	#8 (permalink)
asmanju08 Freak Poster Join Date: Aug 2009 Location: Bharat Posts: 347 Member: 1087883 Status: Offline Sonork: 100.1651719 Thanks Meter: 38	Bro if tracks are ok n vbat show on coil 4 volt then why should make this jumper. think before post all tracks are ok but no backlight its confuseion