very basic way...nokia shortcircuit find out

you have to collect same model schematic..(if available)


sometime parts conected with bat +ve due to many reason get short ...then multimeter show(reading) short. some parts are directly conected with bat +ve terminal and some parts are conected via some small coils(+ve supply/).also some coils(+ve supply series coil) are conected throuh +ve supply coils. here i am show you the coils conected with bat +ve terminal..

here is my sample with 6303i rm-638...

http://img203.imageshack.us/img203/5796/63031.jpg

click at zoom....

http://img530.imageshack.us/img530/7742/63032.jpg


http://img834.imageshack.us/img834/4620/63033.jpg

click next again...

http://img140.imageshack.us/img140/6817/63034.jpg


http://img810.imageshack.us/img810/595/63035.jpg

now the coils are marked...(red circle)
http://img340.imageshack.us/img340/453/6303pcb.jpg

here is the fbr....

now find the short part(s) or section....

if you have doubt with any particular section!!!

here is my sample with 6303i rm-638...

see the image..

http://img834.imageshack.us/img834/4620/63033.jpg

1.open or remove L1400(+ve supply coil)... if short remain in battery terminal it mean this section is clear(no short in the section).
so we have to go another part or section.
2.open or remove L1400(+ve supply coil)...if found short between L1452(+ve supply series coil) to grownd 1st you have to check
the green mark capacitors(replace if short).if capacitors are ok then finally need to change N1450.

now the part(s) are marked...

http://img837.imageshack.us/img837/1585/63036.jpg



by this trick easy to check short circuit in PCB

NOW FIND PART IN PCB


here is my sample with 6303i rm-638...

i am going to find location of coil L2130 in pcb..

SEE THE IMAGE..

http://img181.imageshack.us/img181/795/63037.jpg



the C4 is the cross section of the graph(for L2130)


http://img580.imageshack.us/img580/8816/63038c.jpg


here is the my fbr...

now find the part(s) which directly conected with vbat +ve

here is my sample with 6303i rm-638...

some pert(s) are directly conected with vbat +ve....

see the image...the green and blue marked part(s) are directly conect with vbat +ve terminal....

http://img607.imageshack.us/img607/7510/63039.jpg
http://img175.imageshack.us/img175/6131/630310n.jpg

remove or open L2080...if short remain in battery +ve terminal check all capacitors(change if short)in green mark. if capacitors are ok then finally need to change one after N5702 or N5701 mark in blue.


now the part(s) are marked....

http://img709.imageshack.us/img709/4993/630311.jpg

charger not supported change 47k btemp resistance

now how to find 47k btemp resistance......

here is my fbr sample with 6303i rm-638...

type 47k or btemp in find box....

thanks ...good luck....

Thanks brother..Great work
it helped me a lot..

Great! thanks you very much.

Mẹ, bày đặt trên 1 bàj vjết mớj cho xem link. Dis mẹ chúng bay.

ok i will try this and see if it work ! then ill let u noe

its helpful good work

good brthr..........

this is very useful for anybody who want to learn repairing

thanks for very useful tread more power

very usefull post great idea

Good work. Thanks to you solved the problem.

great,good work bro.keep it up.thanx

my nokia c5.00 full short......how to solve

image not showing please,
post again