iPad 2 Backlight? Coil Location? - GSM-Forum

rob777 · 10-24-2011, 09:45

Hi guys, iPad 2 got wet. Dissasmbled and cleaned straight away. LCD replaced also. LCD cable replaced as well. Still the iPad 2 has no backlight..
Is there a coil like on the 3GS I can replace?
If anyone know the location I will be forever appreciative.
Thanks

rob777 · 10-24-2011, 09:48

I have found a 4r7 coil located near the lcd connector..

anthony cheah · 10-24-2011, 10:17

Did you soft your problem ,i have the same problem before change touch pad all ok.same as you after cleaning no light even change lcd.........can share you solution.........

Wites OM Tesla · 10-24-2011, 11:17

Quote:

Originally Posted by rob777

Hi guys, iPad 2 got wet. Dissasmbled and cleaned straight away. LCD replaced also. LCD cable replaced as well. Still the iPad 2 has no backlight..
Is there a coil like on the 3GS I can replace?
If anyone know the location I will be forever appreciative.
Thanks

Check location that you cleaned maybe you ripped from board
some small black filter that can easily jumped.

rob777 · 11-21-2011, 03:04

still have this problem, anyone else experienced anything like it?? I have checked and replaced all black filters around. Still no backlight..
help is anyone has is much appreciated.

Wites OM Tesla · 11-21-2011, 11:53

Quote:

Originally Posted by rob777

still have this problem, anyone else experienced anything like it?? I have checked and replaced all black filters around. Still no backlight..
help is anyone has is much appreciated.

Check here some info http://forum.gsmhosting.com/vbb/f631...ml#post7893422
I would suggest to check all coils for continuity "beep" with multimeter.

rob777 · 11-24-2011, 01:21

Hmmmm still can't locate the problem. Guess I'll have to give up and sell board on eBay.
Thanks for the help guys!

Burnt Cobba · 12-02-2011, 16:52

Anyone managed to track this coil pls? Got this exact problem.

thanks for any help

Burnt Cobba · 12-08-2011, 10:49

i tried with a new LCD and same problem. Will try the mentioned connection and will be back with results. However there must be some other place to connect to the mother board instead to the LCD connector (LED1).

air_chair256 · 12-08-2011, 13:02

you can make jumper between the cap near the coil and ic to the another part in the mother board but we dont have schematic for ipad2 thats why we make jumper from the cap directly to the LCD

Burnt Cobba · 12-08-2011, 14:38

strange but cannot find the shown point on the LCD section. uncovered the tall black plastic parts that is covering the pcbs on the top and lower sections but near the ribbon connector the one i have here which is a 16gb 3G is not like that.

Burnt Cobba · 12-08-2011, 14:49

the P/N of the pcb connected onto the LCD in my case is 6870S-1119K (shown under the tape where there is the main LCD connector.

thanks for any help

Burnt Cobba · 12-08-2011, 21:49

Anyone can check to which pin on the ribbon connector on the motherboard is the cap (or LED1 in the picture) connected to pls as have no other ipad 2 to compare to?

thanks

work10810 · 12-10-2011, 02:57

can you post a pic of what your lcd conectors look like

Burnt Cobba · 12-13-2011, 14:36

here they are....

thanks

10-24-2011, 09:45	#1 (permalink)
rob777 Junior Member Join Date: Jan 2008 Posts: 13 Member: 681965 Status: Offline Thanks Meter: 4	iPad 2 Backlight? Coil Location? Hi guys, iPad 2 got wet. Dissasmbled and cleaned straight away. LCD replaced also. LCD cable replaced as well. Still the iPad 2 has no backlight.. Is there a coil like on the 3GS I can replace? If anyone know the location I will be forever appreciative. Thanks

10-24-2011, 09:48	#2 (permalink)
rob777 Junior Member Join Date: Jan 2008 Posts: 13 Member: 681965 Status: Offline Thanks Meter: 4	I have found a 4r7 coil located near the lcd connector..

10-24-2011, 10:17	#3 (permalink)
anthony cheah Freak Poster Join Date: Aug 2003 Location: west malaysia Age: 56 Posts: 101 Member: 36425 Status: Offline Thanks Meter: 4	Did you soft your problem ,i have the same problem before change touch pad all ok.same as you after cleaning no light even change lcd.........can share you solution.........

11-21-2011, 03:04	#5 (permalink)
rob777 Junior Member Join Date: Jan 2008 Posts: 13 Member: 681965 Status: Offline Thanks Meter: 4	still have this problem, anyone else experienced anything like it?? I have checked and replaced all black filters around. Still no backlight.. help is anyone has is much appreciated.

11-24-2011, 01:21	#7 (permalink)
rob777 Junior Member Join Date: Jan 2008 Posts: 13 Member: 681965 Status: Offline Thanks Meter: 4	Hmmmm still can't locate the problem. Guess I'll have to give up and sell board on eBay. Thanks for the help guys!

12-02-2011, 16:52	#8 (permalink)
Burnt Cobba No Life Poster Join Date: Apr 2002 Location: The Green Mile Posts: 3,653 Member: 11325 Status: Offline Thanks Meter: 266	Anyone managed to track this coil pls? Got this exact problem. thanks for any help

12-08-2011, 10:49	#9 (permalink)
Burnt Cobba No Life Poster Join Date: Apr 2002 Location: The Green Mile Posts: 3,653 Member: 11325 Status: Offline Thanks Meter: 266	i tried with a new LCD and same problem. Will try the mentioned connection and will be back with results. However there must be some other place to connect to the mother board instead to the LCD connector (LED1).

12-08-2011, 13:02	#10 (permalink)
air_chair256 Freak Poster Join Date: Oct 2011 Posts: 338 Member: 1679608 Status: Offline Thanks Meter: 190	you can make jumper between the cap near the coil and ic to the another part in the mother board but we dont have schematic for ipad2 thats why we make jumper from the cap directly to the LCD

12-08-2011, 14:38	#11 (permalink)
Burnt Cobba No Life Poster Join Date: Apr 2002 Location: The Green Mile Posts: 3,653 Member: 11325 Status: Offline Thanks Meter: 266	strange but cannot find the shown point on the LCD section. uncovered the tall black plastic parts that is covering the pcbs on the top and lower sections but near the ribbon connector the one i have here which is a 16gb 3G is not like that.

12-08-2011, 14:49	#12 (permalink)
Burnt Cobba No Life Poster Join Date: Apr 2002 Location: The Green Mile Posts: 3,653 Member: 11325 Status: Offline Thanks Meter: 266	the P/N of the pcb connected onto the LCD in my case is 6870S-1119K (shown under the tape where there is the main LCD connector. thanks for any help

12-08-2011, 21:49	#13 (permalink)
Burnt Cobba No Life Poster Join Date: Apr 2002 Location: The Green Mile Posts: 3,653 Member: 11325 Status: Offline Thanks Meter: 266	Anyone can check to which pin on the ribbon connector on the motherboard is the cap (or LED1 in the picture) connected to pls as have no other ipad 2 to compare to? thanks

12-10-2011, 02:57	#14 (permalink)
work10810 Junior Member Join Date: Sep 2011 Posts: 12 Member: 1652493 Status: Offline Thanks Meter: 5	can you post a pic of what your lcd conectors look like