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Go Back   GSM-Forum > GSM & CDMA Phones / Tablets Software & Hardware Area > Sony Ericsson > Sony Ericsson Hardware Repair

Sony Ericsson Hardware Repair Post here your Hardware Repairing Hints or Problems with SonyEricsson and Sony Phones.

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Old 11-28-2006, 04:25   #1 (permalink)
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K750i display light prb


Hi
I have a K750I set with me which is heavy water damage but after cleaning it every thing is working fine but there is no LCD back ground light with keypad first row light. So i have changed new LCD even though i have same prb can any one help me please


Thanx in advance
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Old 11-28-2006, 06:55   #2 (permalink)
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check tracks in ur mother board
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Old 11-28-2006, 07:25   #3 (permalink)
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hi i have problem on my cell k300 mic not work and spk voice not clear tell me any aproved workin solution
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Old 11-28-2006, 08:02   #4 (permalink)
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hi

bro cell k300 mic not work first u can try to ful flash allone file

then u r phone is not ok after that change mic ok



thanks gsm uk
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Old 11-28-2006, 15:46   #5 (permalink)
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hi.. try this.. reflow it or replace this ic..
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File Type: jpg K750-Lsd%20licht.jpg (87.4 KB, 2283 views)
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Old 12-13-2006, 04:49   #6 (permalink)
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Quote:
Originally Posted by bakhshalvi007 View Post
hi.. try this.. reflow it or replace this ic..
I have changed the IC but i am facing the same prb
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Old 12-13-2006, 12:53   #7 (permalink)
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keypad have problem ?
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Old 12-14-2006, 02:46   #8 (permalink)
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keypad have problem ?
All the keys are working fine
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Old 12-19-2006, 19:52   #9 (permalink)
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Cool

Quote:
Originally Posted by naseer_10_1980 View Post
Hi
I have a K750I set with me which is heavy water damage but after cleaning it every thing is working fine but there is no LCD back ground light with keypad first row light. So i have changed new LCD even though i have same prb can any one help me please


Thanx in advance
I've come across this problem before. i have a solution for you. let me know if you interested. (cos I have to take pictures)
I bridged lights from the keypad to the LCD. Works like a bomb. only crap is you wont be able to adjust the brightness.
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Old 12-19-2006, 20:05   #10 (permalink)
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Hi Speed_Demon, I am also interested in your jumper, pse post picture.
Thks in advance.
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Old 12-19-2006, 22:42   #11 (permalink)
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Quote:
Originally Posted by bakhshalvi007 View Post
hi.. try this.. reflow it or replace this ic..
solution doesn't work
br
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Old 12-20-2006, 03:56   #12 (permalink)
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Quote:
Originally Posted by Speed_Demon View Post
I've come across this problem before. i have a solution for you. let me know if you interested. (cos I have to take pictures)
I bridged lights from the keypad to the LCD. Works like a bomb. only crap is you wont be able to adjust the brightness.

Yes i am interested post me the picture
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Old 12-22-2006, 19:26   #13 (permalink)
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Wink No lights solution

In order for this solution to work the keypad LEDs must work. This solution bridges the lights from keypad to the LCD. Just remember to bridge out 2 LEDS on the keypad. Then LCD and keypad will have lights.


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Old 12-22-2006, 20:53   #14 (permalink)
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@Speed Demon

thanks man, good work, I will check this solution. Keep it up!

BR
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Old 12-23-2006, 04:53   #15 (permalink)
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Quote:
Originally Posted by Speed_Demon View Post
In order for this solution to work the keypad LEDs must work. This solution bridges the lights from keypad to the LCD. Just remember to bridge out 2 LEDS on the keypad. Then LCD and keypad will have lights.


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I have done this before but prb remain the same
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