f305 display light issue - GSM-Forum

pkghosh1 · 04-01-2010, 22:50

can u tell me f305 no light in lcd but light in keypad slution. i try jumer slution posted in forum but no luck . i change lcd flex upper bord flex but no luck .lcd light connection comes direct from power ic i found it from manual.in light coil volts shows near about 5,can any body solve this????

pkghosh1 · 04-01-2010, 22:51

i also chang light coil but no luck

pkghosh1 · 04-02-2010, 21:05

any knowledge about f305

chohansahib · 04-03-2010, 21:24

Quote:

Originally Posted by pkghosh1

any knowledge about f305

Hi dear friend,
try this solution ........make jumper and solve ur problem........post result

alvinteh · 04-13-2010, 10:31

My f305 diode has been damaged. is there any solution? pls advice

NUOR_GSM LG · 04-13-2010, 11:05

change in flat fix and cheack in ic light

trivialnoise · 05-19-2010, 05:23

I still having problem with this phones i tried the jumper and nothing, i changed the diodes and nothing...

Do you have other solution??

Thank You Very Much

gsmshare · 05-19-2010, 05:40

hv u try reball power ic?????????????
bro try

bhojrajchouhan · 07-24-2010, 09:38

Thanks sir work for me

janar_jk · 08-02-2010, 10:20

Quote:

Originally Posted by alvinteh

My f305 diode has been damaged. is there any solution? pls advice

I have same issu same diode was broken. U can find it from W302.

tlnadar · 09-09-2010, 08:11

F305 display light
1st check flex
2nd change good lcd
3rd u can check diode
or some thing related
to hardware before checking
this 2 things dont direct go to
hardware.good luck

lrpa · 09-14-2010, 07:10

I have a problem too, i have change flex but when switch on every thing ok upto insert sim and set is white screen, change flex again but same problem, set can be switch off. when charging, after charging is display set is white screen, but charging nicely. Any solution. I have also notice that like the above picture that three ics were jumpered.

sheikh1777 · 09-14-2010, 07:29

Quote:

Originally Posted by chohansahib

Hi dear friend,
try this solution ........make jumper and solve ur problem........post result

just replace these two diodes . tested solution by me.
u can get these diodes from dead boards or in samsung E700 flex cable where these switching diodes are placed near back-light circuit. these are called switching diodes u can't use normal diodes.
Note: use the correct polarity.

velmobiles · 08-04-2012, 16:26

i change the diode it's working for me i take the diode from k750i display backside

04-01-2010, 22:50	#1 (permalink)
pkghosh1 Freak Poster Join Date: Oct 2006 Posts: 286 Member: 367027 Status: Offline Thanks Meter: 50	f305 display light issue can u tell me f305 no light in lcd but light in keypad slution. i try jumer slution posted in forum but no luck . i change lcd flex upper bord flex but no luck .lcd light connection comes direct from power ic i found it from manual.in light coil volts shows near about 5,can any body solve this????

05-19-2010, 05:23	#7 (permalink)
trivialnoise Freak Poster Join Date: Nov 2004 Location: Argentina Age: 69 Posts: 180 Member: 91019 Status: Offline Thanks Meter: 62	i tried this and nothing I still having problem with this phones i tried the jumper and nothing, i changed the diodes and nothing... Do you have other solution?? Thank You Very Much

09-09-2010, 08:11	#11 (permalink)
tlnadar Freak Poster Join Date: Jan 2007 Location: Mumbai Posts: 240 Member: 434631 Status: Offline Thanks Meter: 77	F305 display light F305 display light 1st check flex 2nd change good lcd 3rd u can check diode or some thing related to hardware before checking this 2 things dont direct go to hardware.good luck

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04-01-2010, 22:51	#2 (permalink)
pkghosh1 Freak Poster Join Date: Oct 2006 Posts: 286 Member: 367027 Status: Offline Thanks Meter: 50	i also chang light coil but no luck

04-02-2010, 21:05	#3 (permalink)
pkghosh1 Freak Poster Join Date: Oct 2006 Posts: 286 Member: 367027 Status: Offline Thanks Meter: 50	any knowledge about f305

04-13-2010, 11:05	#6 (permalink)
NUOR_GSM LG Freak Poster Join Date: Jul 2008 Posts: 123 Member: 816207 Status: Offline Thanks Meter: 37	change in flat fix and cheack in ic light

05-19-2010, 05:40	#8 (permalink)
gsmshare No Life Poster Join Date: Jan 2007 Location: malaysia Posts: 1,801 Member: 429569 Status: Offline Thanks Meter: 1,543	hv u try reball power ic????????????? bro try

07-24-2010, 09:38	#9 (permalink)
bhojrajchouhan Junior Member Join Date: Mar 2008 Posts: 11 Member: 726232 Status: Offline Thanks Meter: 3	Thanks sir work for me

09-14-2010, 07:10	#12 (permalink)
lrpa Freak Poster Join Date: Feb 2005 Age: 49 Posts: 217 Member: 118395 Status: Offline Thanks Meter: 25	I have a problem too, i have change flex but when switch on every thing ok upto insert sim and set is white screen, change flex again but same problem, set can be switch off. when charging, after charging is display set is white screen, but charging nicely. Any solution. I have also notice that like the above picture that three ics were jumpered.

08-04-2012, 16:26	#14 (permalink)
velmobiles Insane Poster Join Date: Mar 2010 Location: india,tamilnadu Posts: 98 Member: 1255883 Status: Offline Thanks Meter: 4	i change the diode it's working for me i take the diode from k750i display backside