New iPad (3rd gen) weird backlight problem - GSM-Forum

yolmen · 07-18-2012, 17:43

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?

noobfix · 07-18-2012, 18:22

Quote:

Originally Posted by yolmen

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

yolmen · 07-18-2012, 18:37

Do you know where is that located?

noobfix · 07-18-2012, 20:58

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

yolmen · 07-18-2012, 22:54

will try to put new glass and just go to apple store maybe they will replace it under warranty

kfantasyroy · 07-27-2012, 09:42

im facing the same problem also, anyone can help?

Wites OM Tesla · 07-27-2012, 10:21

Quote:

Originally Posted by noobfix

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

Sorry man i not have a board for investigation need some clear picture high quality scanned board.

kfantasyroy · 07-27-2012, 13:59

Shot at 2012-07-27

kfantasyroy · 07-27-2012, 14:01

Shot at 2012-07-27

kfantasyroy · 07-27-2012, 14:02

Shot at 2012-07-27

kfantasyroy · 07-27-2012, 14:03

Shot at 2012-07-27

noobfix · 07-27-2012, 18:29

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

kfantasyroy · 07-28-2012, 07:23

Shot at 2012-07-27

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???

noobfix · 07-28-2012, 07:35

Quote:

Originally Posted by kfantasyroy

Shot at 2012-07-27

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 ?

kfantasyroy · 07-28-2012, 08:05

Shot at 2012-07-28

07-18-2012, 17:43	#1 (permalink)
yolmen Freak Poster Join Date: Jan 2010 Location: Florida Posts: 197 Member: 1222631 Status: Offline Thanks Meter: 24	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?

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07-18-2012, 18:37	#3 (permalink)
yolmen Freak Poster Join Date: Jan 2010 Location: Florida Posts: 197 Member: 1222631 Status: Offline Thanks Meter: 24	Do you know where is that located?

07-18-2012, 20:58	#4 (permalink)
noobfix Banned Join Date: Mar 2012 Posts: 317 Member: 1738165 Status: Offline Thanks Meter: 206	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

07-18-2012, 22:54	#5 (permalink)
yolmen Freak Poster Join Date: Jan 2010 Location: Florida Posts: 197 Member: 1222631 Status: Offline Thanks Meter: 24	will try to put new glass and just go to apple store maybe they will replace it under warranty

07-27-2012, 09:42	#6 (permalink)
kfantasyroy Insane Poster Join Date: Mar 2011 Posts: 77 Member: 1534896 Status: Offline Thanks Meter: 5	im facing the same problem also, anyone can help?

07-27-2012, 13:59	#8 (permalink)
kfantasyroy Insane Poster Join Date: Mar 2011 Posts: 77 Member: 1534896 Status: Offline Thanks Meter: 5	Shot at 2012-07-27

07-27-2012, 14:01	#9 (permalink)
kfantasyroy Insane Poster Join Date: Mar 2011 Posts: 77 Member: 1534896 Status: Offline Thanks Meter: 5	Shot at 2012-07-27

07-27-2012, 14:02	#10 (permalink)
kfantasyroy Insane Poster Join Date: Mar 2011 Posts: 77 Member: 1534896 Status: Offline Thanks Meter: 5	Shot at 2012-07-27

07-27-2012, 14:03	#11 (permalink)
kfantasyroy Insane Poster Join Date: Mar 2011 Posts: 77 Member: 1534896 Status: Offline Thanks Meter: 5	Shot at 2012-07-27

07-27-2012, 18:29	#12 (permalink)
noobfix Banned Join Date: Mar 2012 Posts: 317 Member: 1738165 Status: Offline Thanks Meter: 206	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

07-28-2012, 07:23	#13 (permalink)
kfantasyroy Insane Poster Join Date: Mar 2011 Posts: 77 Member: 1534896 Status: Offline Thanks Meter: 5	Shot at 2012-07-27 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???

07-28-2012, 08:05	#15 (permalink)
kfantasyroy Insane Poster Join Date: Mar 2011 Posts: 77 Member: 1534896 Status: Offline Thanks Meter: 5	Shot at 2012-07-28