Htc One x strange backlight problem - Page 5 - GSM-Forum

douglasdelgado · 04-26-2013, 15:29

the IT1989 is the ic display IC TPS65200 ????

pkbarawal · 04-26-2013, 19:01

no tps65200 is light ic manufactured by texas corp usa.

RainerZufall · 05-14-2013, 18:01

I tried changing the coil and damaged those small rectangular parts beside it.

Can anyone tell me what the black circled parts on this picture are?
Some kind of capacitors or resitors?

MiguelDias90 · 05-17-2013, 00:03

Hi everybody,

I'm new here. I have the backlight problem, so I ordered some TPS65200YFFR IC samples from Texas. There exists the TPS65200YFFT on the site, I will have a problem if I use the TPS65200YFFR IC model?

Not tested the coils, just want to change the IC.
How do I remove it and put the new one?
Can I remove the IC with a tweezers?
I need to solder?

Thanks in advance.

eduardo.oguido · 05-24-2013, 18:53

Hello, I am new to the forum also, I found this site selling 220 coils themselves for the One X: HTC One X Backlight/Charging 220 coil :: IC :: HTC Spare Parts :: Gultek Limited

I bought the screen of my HTC One X and after arriving installed and everything went well. But after putting components inside the housing the screen turned off and will not turn over ... The rest, sounds, and volume functions, etc ... work perfectly. Replacing the coil would solve the problem?
thank you very much

M4rt1n · 05-27-2013, 15:03

Hey guys I have the same Problem with the Backlight!
Like you can see in my Video my HOX is flickering

https://www.youtube.com/watch?v=kKQu16ApvHE

What do you think do I have to replace ?
The Coil or the 220?
Can somebody please wirte a instruction? (with Pictures?)

Sorry for my bad englisch, I'm from germany.

Thanks in advance!

M4rt1n · 05-27-2013, 15:18

By the way. I have the international HTC ONE X

SergioHeadache · 05-28-2013, 01:20

anyone has a part number for the second coil? or where to buy it ? or it's full specs ?
thanks.

M4rt1n · 05-28-2013, 11:11

Quote:

Originally Posted by Coubjithe

It willbe solved.

What will be solved if I replace WHAT?
Simple questio: What do I have to do?

Thanks in advance!

SergioHeadache · 05-28-2013, 19:37

well, i made some experiments and these are my findings:

6r8 instead of the 220 coil does work, but the whole board heats up very badly and after about 10 minutes with screen on, red-green starts to blink (overheating)

2r2 instead of the 220 coil, only works with charger plugged in, guessing not enough power without it.

i now found where to get the exact same 220 coils and should be getting them within a couple of days, will update then.

that is all on a board with i am sure is otherwise perfect.

i have a second board - no matter what i put instead of the 220 - back-light does not come on, i will be trying the second coil, already found it and will have it in a couple of days as well.
if that fails i will try to reheat the IC

the genuine parts used are:

220:
Manufacturer: TDK
part: VLF3012AT-220MR33

second coil:
Manufacturer: TDK
part: VLS252010ET-2R2M

M4rt1n · 05-29-2013, 22:26

OK here i found the 220 coil
VLF3012AT-220MR33 TDK | Mouser

but on the picture is it sined with "100" is this the right one ?

Thanks Dude you helped me really!

SergioHeadache · 05-30-2013, 08:05

yes, it is the right one, the pic is generic on this site.
the problem with the site you found is that even if you buy only one - shipping will be about 40$...
i'm probably going to be selling those after i confirm for sure that they are working 100%, so if you want to wait a couple ore days, i'll be able to provide it cheaper.

M4rt1n · 05-30-2013, 14:35

I'm living in Germany her it costs 20 EURO. But it think I will receive it from another site which is located in Germany too

SergioHeadache · 05-30-2013, 14:50

ok, good luck!
let me know how it goes and if it helps.

r473r · 06-30-2013, 10:18

Hello, my one x has a very dim backlight and it flickers, took it to repair shop and they said they replaced the coils and ic chip, and still not fixed. Backlight is flickering more with increased cpu usage, if phone is idle it doesnt flicker, its only dimmed (tested with 2 lcd's).
Can anyone please help me ?

05-24-2013, 18:53	#65 (permalink)
eduardo.oguido Junior Member Join Date: May 2013 Posts: 1 Member: 1945350 Status: Offline Thanks Meter: 0	220 coil Hello, I am new to the forum also, I found this site selling 220 coils themselves for the One X: HTC One X Backlight/Charging 220 coil :: IC :: HTC Spare Parts :: Gultek Limited I bought the screen of my HTC One X and after arriving installed and everything went well. But after putting components inside the housing the screen turned off and will not turn over ... The rest, sounds, and volume functions, etc ... work perfectly. Replacing the coil would solve the problem? thank you very much

04-26-2013, 15:29	#61 (permalink)
douglasdelgado Junior Member Join Date: Apr 2013 Posts: 2 Member: 1924718 Status: Offline Thanks Meter: 0	the IT1989 is the ic display IC TPS65200 ????

04-26-2013, 19:01	#62 (permalink)
pkbarawal Freak Poster Join Date: Dec 2007 Location: Delhi.India Posts: 290 Member: 652685 Status: Offline Sonork: 100.1594842 Thanks Meter: 45	no tps65200 is light ic manufactured by texas corp usa.

05-14-2013, 18:01	#63 (permalink)
RainerZufall Junior Member Join Date: May 2013 Posts: 1 Member: 1937444 Status: Offline Thanks Meter: 0	I tried changing the coil and damaged those small rectangular parts beside it. Can anyone tell me what the black circled parts on this picture are? Some kind of capacitors or resitors?

05-17-2013, 00:03	#64 (permalink)
MiguelDias90 Junior Member Join Date: May 2013 Posts: 2 Member: 1939157 Status: Offline Thanks Meter: 0	Hi everybody, I'm new here. I have the backlight problem, so I ordered some TPS65200YFFR IC samples from Texas. There exists the TPS65200YFFT on the site, I will have a problem if I use the TPS65200YFFR IC model? Not tested the coils, just want to change the IC. How do I remove it and put the new one? Can I remove the IC with a tweezers? I need to solder? Thanks in advance.

05-27-2013, 15:03	#66 (permalink)
M4rt1n Junior Member Join Date: May 2013 Posts: 5 Member: 1947648 Status: Offline Thanks Meter: 0	Hey guys I have the same Problem with the Backlight! Like you can see in my Video my HOX is flickering https://www.youtube.com/watch?v=kKQu16ApvHE What do you think do I have to replace ? The Coil or the 220? Can somebody please wirte a instruction? (with Pictures?) Sorry for my bad englisch, I'm from germany. Thanks in advance!

05-27-2013, 15:18	#67 (permalink)
M4rt1n Junior Member Join Date: May 2013 Posts: 5 Member: 1947648 Status: Offline Thanks Meter: 0	By the way. I have the international HTC ONE X

05-28-2013, 01:20	#68 (permalink)
SergioHeadache Junior Member Join Date: Jan 2013 Posts: 12 Member: 1866927 Status: Offline Thanks Meter: 2	anyone has a part number for the second coil? or where to buy it ? or it's full specs ? thanks.

05-28-2013, 19:37	#70 (permalink)
SergioHeadache Junior Member Join Date: Jan 2013 Posts: 12 Member: 1866927 Status: Offline Thanks Meter: 2	well, i made some experiments and these are my findings: 6r8 instead of the 220 coil does work, but the whole board heats up very badly and after about 10 minutes with screen on, red-green starts to blink (overheating) 2r2 instead of the 220 coil, only works with charger plugged in, guessing not enough power without it. i now found where to get the exact same 220 coils and should be getting them within a couple of days, will update then. that is all on a board with i am sure is otherwise perfect. i have a second board - no matter what i put instead of the 220 - back-light does not come on, i will be trying the second coil, already found it and will have it in a couple of days as well. if that fails i will try to reheat the IC the genuine parts used are: 220: Manufacturer: TDK part: VLF3012AT-220MR33 second coil: Manufacturer: TDK part: VLS252010ET-2R2M

05-29-2013, 22:26	#71 (permalink)
M4rt1n Junior Member Join Date: May 2013 Posts: 5 Member: 1947648 Status: Offline Thanks Meter: 0	OK here i found the 220 coil VLF3012AT-220MR33 TDK \| Mouser but on the picture is it sined with "100" is this the right one ? Thanks Dude you helped me really!

05-30-2013, 08:05	#72 (permalink)
SergioHeadache Junior Member Join Date: Jan 2013 Posts: 12 Member: 1866927 Status: Offline Thanks Meter: 2	yes, it is the right one, the pic is generic on this site. the problem with the site you found is that even if you buy only one - shipping will be about 40$... i'm probably going to be selling those after i confirm for sure that they are working 100%, so if you want to wait a couple ore days, i'll be able to provide it cheaper.

05-30-2013, 14:35	#73 (permalink)
M4rt1n Junior Member Join Date: May 2013 Posts: 5 Member: 1947648 Status: Offline Thanks Meter: 0	I'm living in Germany her it costs 20 EURO. But it think I will receive it from another site which is located in Germany too

05-30-2013, 14:50	#74 (permalink)
SergioHeadache Junior Member Join Date: Jan 2013 Posts: 12 Member: 1866927 Status: Offline Thanks Meter: 2	ok, good luck! let me know how it goes and if it helps.

06-30-2013, 10:18	#75 (permalink)
r473r Junior Member Join Date: Mar 2011 Location: Romania Posts: 8 Member: 1539894 Status: Offline Thanks Meter: 2	Hello, my one x has a very dim backlight and it flickers, took it to repair shop and they said they replaced the coils and ic chip, and still not fixed. Backlight is flickering more with increased cpu usage, if phone is idle it doesnt flicker, its only dimmed (tested with 2 lcd's). Can anyone please help me ?