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Old 08-10-2012, 16:39   #31
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answer: Solution of identify nokia phone shorting

check shorting in nokia 6670,7610.......



1..remove this coil mark in (1)...if u want to check is pf is short,....


2...remove this coil mark in (2)..if u want to check the display light ic is short....


3..remove ic mark in (3)... this is memory card driver ic this also got +b from batery....remove it to check shoting is gone or not.......


4...remove this transistor ic mark in (4)...this is transistor ic for key pad light ....remove this if u want to check the shoting cause by this transistor....because this transistor got +b from batery......


5..remove this transistor ic mark in (5)...this ic make volt for lcd 2.5v (vlcd)....this ic got +b from batery ....remove this if u want to check the shoting cause by this transistor.....



6...remove boot ic mark in (6)..if u want to check shoting cause by boot ic if it is short replace it with new one......



7..remove ringer ic mark in (7) ....if u want to check shorting throug ringer ic is gone or not...



8.....remove this smps ic mark in (8)... to check the shoting cause by this ic.........this ic make v corea volt for upp...



9..at end remove uem to check shoting is gone or not.....


all the component which are mark in pink colur these all are coils and resistance these are place in series and +b of batery is gone throw them so if u remove the coil and resistance u not have to remove ic to check the shorting in pcb it save time and ur ic ....

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