no power ,reaplced all parts ,still nothing!

Hello Dear Friends

as a continue to latest thread

IPHONE 3GS NO POWER AFTER CLEANING KOROSION of the yellow diode next to toshiba nand flash

the diode has one good leg one bad leg ,,,the board has been cleaned from corrosion ,how should solder it please ?

and this MIGHT EFFECT THE "NO POWER" ISSUE ?

Thank you very much ...pelase help HERE ARE SOME PHOTOS !!!>>>>>>>>>>

p.s all docking and charger and battery are replaced allready good ones !

http://i44.tinypic.com/15ckqs9.jpg http://i42.tinypic.com/1yjreg.jpg http://i44.tinypic.com/j0urs1.jpg

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6 Commenti:

PLEASE help me if you can this is urgent ,very simple QUESTION i am asking ,MIGHT THIS yellow DIODE be the cause of " NO POWER" ?

pelase answer!!

da

what else should i look for in the board friends ....?

da

can it be the pmic ? if THE dock charger & btry ok ?

can it be only the pmic & and that yellow diode? please answer!!

da

the yellow thing is a tantalum capacitor . i never tried to power on an iphone without this part - so i can only say - maybe! did you check the fuse? battery contacts? do you have a voltmeter??

da

Dearest Markus

Thank you , i think no reball is needed here,only fixin the capacitor

I do have a Vm

Dock=pass

Btry=pass

Btry contacts=pass(slight normal)

Connectors 4+1 =pass

the thing i have recieved it with white stickers ,(of a white disp issue)

after noticed white bits next to the TAntrum CaPacitor

brushed it with 70% alcohol and took the leg with it ,& what i should have done is drop the whole pcb on alcohol (Before That it Worked fine)

Dear Markus

Do You Have Any Idea Please?! ,On how Should i lift the Tantrum Capacitor up and constract it with a leg

is simple heatgun ok?

da

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