Samsung SGH-C100 Service Manual page 10

6.Recei ver
* C al l bef ore t est i ng.
Recei ver does not w ork
Put ' si ne w ave' f rom
8960, and Check t he
pi n 5, 7 of U 502 i s si ne
C heck t he pi n 3, 9 of
U 502 i s si ne w ave
C heck t he w ave of
C412 & C421
I s Speaker w orki ng ?
w ave
Yes
Yes
Yes
Yes
EN D
SAMSUNG Proprietary-Contents may change without notice
T hi s Docum ent can not be used w i t hout Sam sung' s aut hori zat i on
SGH-C100 Fl ow Chart of Troubl eshoot i ng
N o
Check U 200 and speak rel at ed
N o
C heck U 502 and sol der i ng
N o
Check t he pat h f r om U 502 t o
N o
Repl ace t he Speaker
4-9
ci rcui t
SPK 400