check shoting in nokia n-91........
1..remove this z7500 mark in (1) if u want to check the shoting of pf of gsm and wcdma ....if remove the coil and ur shoting is gone then tere is shoting in ur pf of gsm or wcdma ........
2..remove this coil mark in l7503 (2)...if u want to check the shoting of rf ic for gsm hinku and rf ic for wcdma vinku.... by removing this coil if ur shoting is gone then there is shoting in ur rf ic whether it is hinku or vinku.....under shield..cover....
3..remove this coil mark in (3)..if u want to check the shorting cause by (vdac) maker ic n2101 which make vdac for audio-dac ic n2100.........remove this coil to chec shoting .....because this ic got +b from batery....
4..remove this coil mark in (4)..if u want to check smps ic n4200.. ..this ic make v corea for omap ic and rap remove cil to check shoting is gone or not.....
5..remove this ic n5000 ape regulator mark in (5)..if u want to check the shoting is cause by this remove it to check shoting is gone or not....
6..remove light ic mark in (6) ... to check the shoting cause by light ic or not....
7..remove coil mark in (7) ...it is vcam maker ic which make (vdd logic) ......remove this coil to check shoting because this ic got +b from batery......
8..remove coil. mark in (8)... it is cam maker ic which make (vdd analog) for camera ....remove these coil to check shoting .....because it got +b from batery.....
9..remove bluetooth module mark in (9)... to check shoting ...because it got +b from batery.....
10..remove this coil mark in (10)...to check the ic n5205 which make voltage (vhdd)... for the 4gb & 8gb hard disk......this ic got +b from batery.......
11..remove wlan pa mark in (11) ...to check shoting because this ic got +b from batery.....
12..remove wlan ic n6300 mark in (12) ....to check the shoting because this ic got +b from batery..........
all the component which are mark in pink colur these all are coils these are place in series and +b of batery is gone throw them so if u remove the coil u not have to remove ic to check the shorting in pcb it save time and ur ic ....
Saturday, September 5, 2009
check shoting in nokia n-91........
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