ipad A1954/A1892 NO touch - GSM-Forum

timvandenboo · 03-10-2020, 21:11

Hi everyone,

Got here an ipad A1954 Air 2018 with no touch.

Since there are no schematics, I have no idea where the power comes from. Anyone experience with ipad 9.7 or something? These got the same touch ic's

Hope someone got some advice!
Thanks in advance

orx · 03-10-2020, 22:55

hi

i can only to post image for touch screen ic's maybe can to be useful..

ipad.jpg

timvandenboo · 03-12-2020, 09:27

Yes these ic are the same as the ic's on ipad 9.7 and pro 12.9 (on external board).

Howeever, since there is no schematic, I got no idea where the powerline comes from... On the ipad 12.9 this was the filter that sometimes burned when lcd connectors where connected wrongly.

But on these ipads i cant find such filter before the touch ic's..

Actually got a second one today.... Maybe it is pmic related or something.

orx · 03-12-2020, 15:24

in green there are 2 coil check if faulty ( personally experience with ipad pro 12.9) in yellow i've marked that could to be a power line for touch circuit ..but if more details ( not schematic / diagram but only layer ) purchase wux----ji license

03-10-2020, 21:11	#1 (permalink)
timvandenboo Freak Poster Join Date: May 2013 Location: Netherlands Posts: 376 Member: 1939450 Status: Offline Thanks Meter: 165	ipad A1954/A1892 NO touch Hi everyone, Got here an ipad A1954 Air 2018 with no touch. Since there are no schematics, I have no idea where the power comes from. Anyone experience with ipad 9.7 or something? These got the same touch ic's Hope someone got some advice! Thanks in advance

03-10-2020, 22:55	#2 (permalink)
orx No Life Poster Join Date: Oct 2012 Location: Republic of Serenissima Posts: 1,516 Member: 1825965 Status: Offline Thanks Meter: 874	hi i can only to post image for touch screen ic's maybe can to be useful.. ipad.jpg

03-12-2020, 09:27	#3 (permalink)
timvandenboo Freak Poster Join Date: May 2013 Location: Netherlands Posts: 376 Member: 1939450 Status: Offline Thanks Meter: 165	Yes these ic are the same as the ic's on ipad 9.7 and pro 12.9 (on external board). Howeever, since there is no schematic, I got no idea where the powerline comes from... On the ipad 12.9 this was the filter that sometimes burned when lcd connectors where connected wrongly. But on these ipads i cant find such filter before the touch ic's.. Actually got a second one today.... Maybe it is pmic related or something.