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Go Back   GSM-Forum > GSM & CDMA Phones / Tablets Software & Hardware Area > iPhone ,iPod & iPad (Apple Inc. Products) > iPhone, iPad, iPod Hardware Repair

iPhone, iPad, iPod Hardware Repair Hardware Repair discussions for iPhone, iPod , iPad & Apple Products, help, guides.

 
 
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Old 07-18-2012, 18:43  
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New iPad (3rd gen) weird backlight problem

Hi I got new iPad with retina display, was replacing the glass on it and noticed that the LCD right 1/3 of the screen has no backlight. I tried different LCD and its the same. I see this for the first time not sure what could cause this, there are no components next to connector to damage, and again its just right 1/3 of the screen. Any ideas?
 
Old 07-18-2012, 19:22  
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Originally Posted by yolmen View Post
Hi I got new iPad with retina display, was replacing the glass on it and noticed that the LCD right 1/3 of the screen has no backlight. I tried different LCD and its the same. I see this for the first time not sure what could cause this, there are no components next to connector to damage, and again its just right 1/3 of the screen. Any ideas?

because iPad 3 have 2 separate back light route and one of yours is short
 
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Old 07-18-2012, 19:37  
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Do you know where is that located?
 
Old 07-18-2012, 21:58  
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no idea, only part of it, ask wites to make a full solution for you


New tested Solutions - Website of cyberdoctormd! your # 1 Apple iPod, iPhone, iPad, Mac, PC, Repair Solutions Store
 
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Old 07-18-2012, 23:54  
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will try to put new glass and just go to apple store maybe they will replace it under warranty
 
Old 07-27-2012, 10:42  
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im facing the same problem also, anyone can help?
 
Old 07-27-2012, 11:21  
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Sorry man i not have a board for investigation need some clear picture high quality scanned board.
 
Old 07-27-2012, 14:59  
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Shot at 2012-07-27
 
Old 07-27-2012, 15:01  
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Old 07-27-2012, 15:02  
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Old 07-27-2012, 15:03  
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Old 07-27-2012, 19:29  
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I also dont have the ip3 board for testing.
but since ipad 3 is really just a buffed up double track ipad 2

you can easily locate the ipad 3 2 backlight chips and 2 4R7 backlight coils


that leave only the backlight filters.... I am going to guess those two are under the metal shield next to the BL chip. because of the 2 filters location remain unknown the full solution is not ready but if you want to get the backlight chip or the 4R7 coils, visit cyberdocllc.com



 
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Old 07-28-2012, 08:23  
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tks noobfix, i measure the board coil already 4R7 coils and the small BL chips no short no broken. when my customer send over just change the touch screen. i also wonder why the lcd backlight will got problem???
 
Old 07-28-2012, 08:35  
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tks noobfix, i measure the board coil already 4R7 coils and the small BL chips no short no broken. when my customer send over just change the touch screen. i also wonder why the lcd backlight will got problem???
did you measure the bl chip on both direction? only one side should have continuity. if you get it both ways then the chip is short. and can you get a better picture of the board without the metal frame ?
 
Old 07-28-2012, 09:05  
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