Samsung SGH-X120, Service Manual

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SAM SU N G Proprietary-C ontents m ay change w ithout notice
SGH-X120 Flow Chart of Troubleshooting and Circuit Diagrams
2- 14
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C SR AM EN
A (23)
IR D A _EN 1
B P _C F
R S T
C P _TC K
C P _TM S
C P _TD I
C P _TD O
V B A T
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S D S _R X D
S D S _TX D
C P _W EN
D A ID O
D A ID I
D A IC K
D A IR N
TX P O W ER
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G R EEN _LE D
B LU E_LED
X O EN A
B LU E_LE D
G R EEN _LE D
TX _B A N D _S EL
G S M _TX _E N
D C S _TX _EN
TX _E N
EN _V R F
EN _V P A C
S I_E N
R ED _LE D
R X IN
R X IP
R X Q N
R X Q P
TX IN
TX IP
TX Q N
TX Q P
A O U TB N
M EM _R S T
D S P _R W N
D S P _IO
D S P _A B (0:8)
D S P _D B (0:15)
D S P _A B (8)
A FC
A U X IN
C P _IN T
D S P _IN T
C LK 13M _M C
M IC IN
D S P _D B (6)
D S P _D B (7)
D S P _D B (8)
D S P _D B (9)
S ER C LK
A U X O U T
A O U TB P
S ER D A T
S ER LE
A O U TA P
A O U TA N
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D S P _A B (5)
D S P _A B (6)
D S P _A B (7)
D S P _D B (0)
D S P _D B (1)
D S P _D B (10)
D S P _D B (11)
D S P _D B (12)
D S P _D B (13)
D S P _D B (14)
D S P _D B (15)
D S P _D B (2)
D S P _D B (3)
D S P _D B (4)
D S P _D B (5)
A (23)
IC H R G
LC D _B A C K LIG H T_EN
C H G _D ET
A U D IO _O U T_S E L
YM U _LE D
EA R _S W ITC H
D S P _A B (0)
D S P _A B (1)
D S P _A B (2)
D S P _A B (3)
C P _TD I
C P _TM S
D S P _TC K
D S P _TD I
D S P _TD O
D S P _TM S
R S T
U P _S C LK
U P _C S
FLA S H _R ES ET
V R EF
C P _C S R O M 2E N
C LK 32K
R TC A LA R M
B P _V F
JA C K _IN
D EB U G _D S R
R S T
C P _TC K
A (21)
D EB U G _D TR
D EB U G _R TS
IR D A _EN
LC D _B A C K LIG H T_C O N TR O L
U P _S D I
C P _TD O
R S T
S D S _R X D
S IM D A T A
S IM C LK
C H G _O N
D EB U G _R I
D S P _IO
D S P _R W N
D S P _IN T
R S T
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D LC _D ETEC T
C P _W EN
C P _O E N
D EB U G _D C D
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S IM R S T
P W R _K EEP
D EB U G _TX D
D EB U G _C TS
K EY_B A C K LIG H T_E N
S D S _TX D
C P _IN T
IR D A _R X
D EB U G _R X D
D S P _A B (6)
D S P _A B (5)
D S P _A B (4)
D S P _A B (3)
D S P _A B (2)
D S P _A B (1)
D S P _A B (0)
K EY_R O W (4)
D S P _A B (8)
YM U _EN
A (22)
C P _C S R O M E N
C P _C S R A M E N
LC D _S EL
A (3)
A (2)
A (1)
A (0)
K EY_R O W (0:4)
K EY_R O W (3)
K EY_R O W (2)
K EY_R O W (1)
K EY_R O W (0)
K EY_C O L(0:4)
K EY_C O L(4)
K EY_C O L(3)
K EY_C O L(2)
K EY_C O L(1)
K EY_C O L(0)
D S P _A B (8:0)
D S P _A B (7)
A (19)
A (18)
A (17)
A (16)
A (15)
A (14)
A (13)
A (12)
A (11)
A (10)
A (9)
A (8)
A (7)
A (6)
A (5)
A (4)
D (13)
D (12)
D (11)
D (10)
D (9)
D (8)
D (7)
D (6)
D (5)
D (4)
D (3)
D (2)
D (1)
D (0)
A (0:20)
A (20) D S P _D B (3)
D S P _D B (4)
D S P _D B (5)
D S P _D B (6)
D S P _D B (7)
D S P _D B (8)
D S P _D B (9)
D S P _D B (10)
D S P _D B (11)
D S P _D B (12)
D S P _D B (13)
D S P _D B (14)
D S P _D B (15)
D (0:15)
D (15)
D (14)
C P _C S R A M E N
A (0)
U P P ER _B YTE
D S P _D B (15:0 )
D S P _D B (0)
D S P _D B (1)
D S P _D B (2)
D (4)
D (3)
D (2)
D (1)
D (0)
A (22)
A (1 )
M EM _R S T
R S T
FLA S H _R ES ET
C P _C S R O M E N
C P _C S R O M 2EN
M EM _R S T
C P _O EN
C P _W EN
A (6 )
A (5 )
A (4 )
A (3 )
A (2 )
D (0:15 )
D (15 )
D (14 )
D (13 )
D (12 )
D (11 )
D (10 )
D (9)
D (8)
D (7)
D (6)
D (5)
A (1:22)
A (21)
A (20)
A (19)
A (18)
A (17)
A (16)
A (15)
A (14)
A (13)
A (12)
A (11)
A (10)
A (9 )
A (8 )
A (7 )