Samsung SCH-A302, Service Manual

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SAMSUNG Proprietary-Contents may change without notice
10-7
Date Changed Changed by
10 8
4
Size
12
City
D
C
Drawn by
of
B
Engineer
6
1
1
3
Drawing Number
1
Time Changed
F
D
5
COMPANY NAME
TITLE
11
B
8
G G
11
H H
9
SCH-A302 (i)
A2
7 2
3
C
R&D CHK
3 4
DOC CTRL CHK
12 6
E
A
5 2
E
QA CHK
REV
9 10
MFG ENGR CHK
Sheet
Address
A
7
F
LJC
2001.09.18
5:00:42 pm
LJC
LJC
0 6
R145 NC
VBATT
470PF
C105
1NF
C151
47K
R124
NC
R143
0 R142
R622
2
TMS
1K
100NF
C619
10K
R149
IN
2
IN
IN
3
IN
4
5
OUT
OUT
6
OUT
7
8
OUT
F103
G
9 10
G
1
2
3
1
C145
470PF
V102
Q160
100 R128
VCON2
1
1
2
2
3
3
2
1K R147
Q102
1
3
IN
IN
3
IN
4
5
OUT
OUT
6
OUT
7
8
OUT
F101
G
9 10
G
1
IN
2
220PF
C605
R606
4.7K
NC
R625
T106
330
R127
CN303
1
2
3
4
5
100
R170
1
47K
R169
180K
R619
CN101-1
R175
0
3.0_MA
3.0_MP
R133
200K
470PF
C162
R171
100
R115
C161
470PF
V101
3.0_MP
100
9
V100
200K R118
C115
470PF
9
9
6
V103
20
20
3
3 4
4
5
5 6
6
7
7 8
8
13
13
14
14
15
15 16
16
17 17 18 18
19
19
2
2
J101
1
1
10
10
11
11 12
12
2.2K
R611
3.0_MP
D602
100K R604
D601
R614
180K
10K
R138
16
R172 0
3.0_MP
6
OUT
7
OUT
OUT
8
R132
330
F102
9
G G
10
IN
1
IN
2
3
IN
4
IN
OUT
5
C101
10NF
100NF
C111
1NF
C152
1NF C150
TDI
3.0_MP
R140 1K
1A
_LB
2A
_OE
2B
_UB
_WE
5G
3E
NC3
NC4
6H
VCC1
1E 6D
VCC2
1D
VSS1
VSS2
6E
5B
_CS1
6C
I/O3
I/O4
5D
5E
I/O5
I/O6
5F
I/O7
6F
6G
I/O8
1B
I/O9
2G
NC1
NC2
1H
I/O11
2C
2D
I/O12
I/O13
2E
2F
I/O14
1F
I/O15
I/O16
1G
5C
I/O2
4B
A4
A5
3C
4C
A6
A7
4D
2H
A8
A9
3H
CS2
6A
I/O1
6B
I/O10
1C
3G
A12
A13
4G
3F
A14
A15
4F
4E
A16
A17
3D
5A
A2
A3
3B
U101
3A
A0
A1
4A
4H
A10
A11
5H
2K R620
10NF
1K
R109
C103
19
1NF
C127
D160
3
1
2
6.3V
33UF
C604
C110
10NF
C616
100NF
C611
100PF
10
3.0_MA
3.0_MA
C614
NC
C612
100NF
C143
100NF
0
R123
10NF
C144
TDO
C119
3.0_MP
1NF
C607
100NF
200K
R117
C606
10UF
6.3V
100K
R130
C120
1NF C147
1NF
100NF C610
DGND
NC
R601
100
R125
C106 10NF
100
R129
12
R144 0
C641
5
100NF
R618
10K
R148
7
4
0
TRST_N
C622
10NF
17
C620
10NF
10K
4 6
T104
R136
ZD101
2
1 3
5
3.0_MP
C121
R160
10K
1NF
1NF
C126
100NF
C122
F_WE
100NF
C617
0
8
R106
R161
2K
470K
R617
10K R616
R122
3.0_MP
3.0_MP
200K
C601
47NF
3.0_MP
3.0_MP
C640
100NF
R602
NC
C613 100NF
T103
3.0_TCXO
C104
470PF
C116
10NF
1
3
2
C113
100NF
14
Q161
R110
22K
18
C112
100PF
470PF
C114
T105
100K
R605
R111
470
3.0_MP
100PF
C117
100NF
C615
100
330K
R105
R126
100
3.0_TCXO
R108
C603
VBA
TT
5
4 6
15
ZD103
2
1 3
VCON1
1
1
2
2
3
3
C123
10NF
TCK
D4
C6
_WE
C5
_WP/ACC
100NF
C618
J6
VSS1
G3
J9
VSS2
J2
_CE1S
_CEF
H2
_LBS
C4
_OE
H3
_RESET
D5
_UBS
NC
NC
B10
C1
NC
NC
E9
F1
NC
E5
RY/_BY
SA
G8
J5
VCCF
VCCS
L5
L6
NC
L10
NC
NC
M1
NC
M10
NC
A10
B1
NC
NC
B5
B6
K3
DQ8
DQ9
H4
A1
NC
NC
F9
F10
NC
NC
G1
NC
G10
L1
NC
NC
K8
DQ14
DQ15/A-1
H8
DQ2
K4
H5
DQ3
DQ4
H6
K7
DQ5
G7
DQ6
DQ7
J8
H9
K6
CIOS
DQ0
J3
G4
DQ1
J4
DQ10
DQ11
K5
J7
DQ12
DQ13
H7
D2
F3
A4
E3
A5
A6
D3
A7
C3
C7
A8
A9
E7
CE2S
D6
CIOF
F8
A15
D9
G9
A16
A17
F4
E4
A18
A19
D7
E2
A2
E6
A20
A3
U103
G2
A0
A1
F2
F7
A10
A11
C8
A12
D8
A13
E8
A14
10NF
C109
20
1K
R137
13
3
C108
NC R150
100NF
C124
100NF
R101 10K
10NF
C128
C621
C608 100NF
100NF
C142
10NF
BOUT
7
GND
4
8
VCC
U601
3
A+
A-
2
1
AOUT
5
B+
B-
6
100NF
C651
DP_TX_DA
T
A
10NF
C146
R603 200K
22
21
11
1
3
2
T102
Q101
C107 100NF
C160
1UF
10V
10NF
C140
NC
10NF C609
39K
R121
R141
1K
R628
3.0_MC
C602
3 4
4
5
5 6
6
7
7 8
8
9
9
14
15
15 16
16
17
17 18
18
19
19
2
2
20 20
3
J102
1
1
10
10
11
11 12
12
13
13
14
R103
430
R162
NC
R621 NC
1.5K
R612
T101
NC
R626
C118
100PF
R613
3.0_TX
1K
3.0_MP
C129
3.3NF
HP_PWR DP_RX_DA
T
A
2
1 3
5
4 6
ZD102
R139
C600
3.0_TCXO
10K
220PF
R134 1K
D9 K4
VDD_C2 VDD_C3
M15 E14
VDD_P1 VDD_P2
M4 P8
VDD_P3
WDOG_EN
M16 U15
XT
AL48_IN
XT
AL48_OUT
U14
Y
AMN1
C12
TDO
TMODE
B17 C3
TMS
TRK_LO_ADJ B11
C6
TRST_N
TX_AGC_ADJ A12
VDD_A1
D5 D10
VDD_A2 VDD_A3
F4 F15
VDD_A4 VDD_A5
L14
VDD_C1
SBCK
A1 B1
SBDT
B2
SBST
A8
SLEEP_N
SLEEP_XT
AL_IN
T17 R17
SLEEP_XT
AL_OUT
SYNTH_LOCK
C10
D4
TCK
TCXO
A17
TDI
B4 A5
RD_N
N17
RESIN_N
RESOUT_N
P17
RFR_N
E17 J3
RFR_N2
RINGER
C14
R15
ROM_CS1_N
P4 ROM_CS2_N
RSVD1
A16 B16
RSVD2
A11
RX_AGC_ADJ
D6
C11 PA_ON2
PA_R0
A9
D7
PA_R1
C8 PDM1
PDM2 B9
Q_OFFSET B10
B5
Q_OUT
Q_OUT_N
A6
P14 RAM_CS1_N
RAM_CS2_N N4
R14
H14
MIC2P
MICBIAS
G17
G14
MICFBN
G15
MICFBP
MICINN G16
MICINP
H17
J17 MICOUTN
MICOUTP
H16
U17
MODE0
R16
MODE1
PA_ON
G1 H2
KEYSENS4
LCD_CS_N P12
LCD_EN
P13
LNA_GAIN B12
LNA_RANGE0 C7
C9
LNA_RANGE1
LWR_N P16
K17 MIC1N
J16 MIC1P
MIC2N
H15
G3 F1
HKADC5 HKADC6
G2
P15 HWR_N
B7
IDLE_N
A10 I_OFFSET
I_OUT A7
B6 I_OUT_N
E3
KEYSENS0 KEYSENS1
D2 D1
KEYSENS2 KEYSENS3
P2
GPIO5
R3
GPIO6
N1
GPIO7 GPIO8
P3 N2
GPIO9
P6 GP_CS_N
HKADC0
E2 F3
HKADC1 HKADC2
E1 F2
HKADC3 HKADC4
GPIO33 GPIO34
E4 A3
GPIO35 GPIO36
C2
GPIO4
P1
T14
GPIO42 GPIO43
U16 T15
GPIO44 GPIO45
T16 T13
GPIO46 GPIO47
U13
GPIO22 GPIO23
K3 J1
GPIO24 GPIO25
K2
GPIO26
L3
GPIO27
A4 B8
GPIO28 GPIO29
A2 R1
GPIO3
B3
GPIO30 GPIO32
C1 D3
GPIO0
U1
GPIO1
T1
GPIO10
M1 N3
GPIO1
1
GPIO12
M2 L1
GPIO13 GPIO14
M3 L2
GPIO16 GPIO17
K1
GPIO2
R2 J2
P9
L4 GND12
GND2
P5
GND3
G4
GND4
C5
D1
1
GND5 GND6
K15 F14
GND7 GND8
H3 D8
GND9
F16
GND_RET
J4 D17
DP_TX_DA
T
A
H1
DP_TX_DA
T
A
2
M17 EAR10N
EAR10P L16
K14 EAR20
FM_RX_IDATA B15
B14
FM_RX_QDATA
A15 FM_RX_STB
D12
GND1
L15
GND10
GND11
R11
D2
D3
T10
U9
D4
D5
P10
R10
D6
D7
T9
U8
D8
D9
R9
DAC_IREF
C4
D16
DP_RX_DA
T
A
DP_RX_DA
T
A
2
C13
B13
C_RX_QDATA2
C_RX_QDATA3
A13
R12 D0
D1
U10
T8 D10
D11
U7
R8
D12
D13 T7
U6
D14
D15
P7
AUX_PCM_CLK
AUX_PCM_DIN
E16 D14
AUX_PCM_DOUT
F17
AUX_PCM_SYNC
CCOMP
E15
C15
CTS_N
CTS_N2
H4
A14 CX8_FM_CLK
C17 C_RX_IDATA2
C_RX_IDATA3 C16
C_RX_QDATA0 D13
C_RX_QDATA1
T12 A4
A5 U11
T11
A6
A7 P11
R7 A8
A9 T6
AUX0N
K16
AUX0P L17
AUX1N J15
AUX1P J14
D15
R5
A15 U4
T3
A16
A17
R4
U3
A18
A19
U2
U12 A2
T2 A20
A21
N14
M14
A22
A3 R13
U609
MSM3100C
N16
A0
A1 N15
U5
A10
A11
R6
T5
A12
A13
T4
A14
ZD601
47PF
C102
R131
1.2K
C125
1NF
A2
3
4
GND
SCL
6
5 SDA
VCC
8
7
WP
3.0_MP
U106
1
A0
A1
2
47K
LWR1
R104
AD(5)
AD(3)
AD(1)
VIBRATOR
SPK-
AD(7)
VBATT
LNA_GAIN
DP_TX_DATA2
DP_RX_DATA2
VBATT
DP_TX_DATA2
DP_RX_DATA2
CX8
A(0)
RAM_CS2
RAM_CS1
A(21)
GP_CS
LCD_CS
LCD_EN
LWR
CD
RTS
CTS
V_F
VBATT
DTR
SPK+
AD(2)
A(2)
AD(6)
AD(4)
AD(0)
SPK+
EL_EN_A
RESET
LED_ON
ALT_LED_ON
3.0_MP
ON_SW
SVC_LED_ON
KEY3
VBATT
HALL_EFFECT_IC
MIC
MIC
DP_TX_DATA
DP_RX_DATA
HP_PWR
DGND
VBATT
LWR
A(21)
SLEEP
TCXO_ON_OFF
RESET
EL_EN_A
DTR
DSR
TX_AGC_ADJ
IREF
SPK-
A(0)
RAM_CS2
LWR
RAM_CS1
RAM_CS1
HALL_EFFECT_IC
C_F
V_F
VIBRATOR
AD(3)
AD(4)
AD(5)
AD(6)
AD(7)
AD(8)
AD(9)
AD(10)
AD(11)
AD(12)
AD(13)
AD(14)
AD(15)
AD(0:15)
HP_DET
MSM_INT
SDA
PLL_DATA
JACK_S
PLL_CLK
SEND_END
PS_HOLD
RINGER
RX_AGC_ADJ
PA_ON
DSR
SCL
SDA
LOCK
A(0:20)
AD(0)
A(1:18)
A(1)
A(2)
A(3)
A(4)
A(5)
A(6)
A(7)
A(8)
A(9)
A(10)
A(11)
A(12)
A(13)
A(14)
A(15)
A(16)
A(17)
A(18)
AD(1)
AD(2)
DP_RX_DATA
DP_TX_DATA
RI
CD
RTS
DSR
CTS
DTR
RI
ALT_LED_ON
SVC_LED_ON
SCL
PLL_EN CD
RTS
CTS
SLEEP_CLK
Q_OFFSET
I_OFFSET
C_RX_QD(1)
C_RX_QD(2)
C_RX_QD(3)
C_RX_ID(1)
C_RX_ID(2)
C_RX_ID(3)
TRK_LO_ADJ
A(22)
LWR
RX_AUDIO
C_F
TX_AUDIO
DP_RX_DATA
DP_TX_DATA
RI
HP_PWR
A(12)
A(13)
A(14)
A(15)
A(16)
A(17)
A(18)
A(19)
TX_AUDIO
JACK_S
SEND_END
RX_AUDIO
SBCK
SBST
DP_TX_DATA
DP_RX_DATA
AD(14)
AD(15)
AD(0:15)
AD(1)
AD(2)
AD(3)
AD(4)
AD(5)
AD(6)
AD(7)
AD(8)
AD(9)
AD(10)
AD(11)
AD(12)
AD(13)
AD(14)
A(1)
A(2)
A(3)
A(4)
A(5)
A(6)
A(7)
A(8)
A(9)
A(10)
A(11)
A(4)
A(5)
A(6)
A(7)
A(8)
A(9)
A(10)
A(11)
A(12)
A(13)
A(14)
A(15)
A(16)
A(17)
A(18)
A(19)
A(20)
AD(0:15)
AD(0)
AD(1)
AD(2)
AD(3)
AD(4)
AD(5)
AD(6)
AD(7)
AD(8)
AD(9)
AD(10)
AD(11)
AD(12)
AD(13)
A(0)
A(20)
A(21)
A(22)
C_RX_QD(0)
AD(0)
AD(15)
C_RX_ID(0)
V_F_CON
GP_CS
TX_I
TX_IB
ON_SW_SENSE
LCD_CS
LCD_EN
LWR
PA_R0
TX_Q
TX_QB
RAM_CS2
RESET
SBDT
MSM_TCXO
A(1)
A(1:20)
A(2)
A(3)
4. RF Circuit Diagram
SCH-A302 Circuit description & Circuit Diagrams