LG HB620 Service Manual page 154

7. CIRCUIT DIAGRAM
1 1 2 2 3 3
MEMORY (2Gbit 90n NAND FLASH + 1Gbit SDRAM)
A A
SDRAM_DATA[0:31]
SDRAM_DATA[0] U4
DQ0
SDRAM_DATA[1] T4
DQ1
SDRAM_DATA[2] T5
DQ2
SDRAM_DATA[3] V5
DQ3
SDRAM_DATA[4] U5
DQ4
SDRAM_DATA[5] T6
DQ5
SDRAM_DATA[6] V6
DQ6
SDRAM_DATA[7] U7
DQ7
SDRAM_DATA[8] T9
DQ8
SDRAM_DATA[9] T10
DQ9
SDRAM_DATA[10] V10
DQ10
SDRAM_DATA[11] T11
B B DQ11
SDRAM_DATA[12] U11
DQ12
SDRAM_DATA[13] V11
DQ13
SDRAM_DATA[14] T12
DQ14
SDRAM_DATA[15] U12
DQ15
SDRAM_DATA[16] P3
DQ16
SDRAM_DATA[17] R3
DQ17
SDRAM_DATA[18] P4
DQ18
SDRAM_DATA[19] R4
DQ19
SDRAM_DATA[20] P5
DQ20
SDRAM_DATA[21] R5
DQ21
SDRAM_DATA[22] P6
DQ22
SDRAM_DATA[23] R6
DQ23
SDRAM_DATA[24] P9
DQ24
SDRAM_DATA[25] P10
DQ25
SDRAM_DATA[26] R10
DQ26
SDRAM_DATA[27] P11
DQ27
SDRAM_DATA[28] R11
DQ28
SDRAM_DATA[29] P12
DQ29
R12
SDRAM_DATA[30]
DQ30
R13
SDRAM_DATA[31]
C C DQ31
U8
SDRAM_DQM[0] DQM0
T8
SDRAM_DQM[1] DQM1
V7
SDRAM_DQM[2] DQM2
U9
SDRAM_DQM[3] DQM3 TYA000B800COGG
EBI2_DATA[0:15]
EBI2_DATA[0] M11
IO1
EBI2_DATA[1] M13
IO2
EBI2_DATA[2] L10
IO3
EBI2_DATA[3] L12
IO4
EBI2_DATA[4] J9
IO5
EBI2_DATA[5] H12
IO6
EBI2_DATA[6] H10
IO7
EBI2_DATA[7] G12
IO8
EBI2_DATA[8] M12
IO9
EBI2_DATA[9] L9
IO10
EBI2_DATA[10] L11
IO11
EBI2_DATA[11] K9
IO12
EBI2_DATA[12] H13
IO13
EBI2_DATA[13] H11
D D
IO14
EBI2_DATA[14] H9
IO15
EBI2_DATA[15] G11
IO16
A1
NC1
A2
NC2
A3
NC3
A4
NC4
A11
NC5
A12
NC6
A13
NC7
A14
NC8
B1
NC9
B2
NC10
B3
NC11
B4
NC12
B11
NC13
B12
NC14
B13
NC15
B14
NC16
C1
E E NC17
C2
NC18
C5
NC19
C13
NC20
C14
NC21
F F
SELECT_SPK&RCV
U304 FSA2268TUMX
10
SPK_R 1B0 1A
R313 20 1
RECEIVER+ 1B1 S1
2
SPK_L 2B0 2A
R314 20 3
RECEIVER- 2B1 S2
4
GND VCC
G G
H H
1 1 2 2 3 3
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4 4 5 5 6 6
SDRAM_ADDR[0:12]
C3 SDRAM_ADDR[0]
A0
D3 SDRAM_ADDR[1]
A1
E3 SDRAM_ADDR[2]
A2
E2 SDRAM_ADDR[3]
A3
D12 SDRAM_ADDR[4]
A4
C12 SDRAM_ADDR[5]
A5
D11 SDRAM_ADDR[6]
A6
C11 SDRAM_ADDR[7]
A7
D10 SDRAM_ADDR[8]
A8
C10 SDRAM_ADDR[9]
A9
E4 SDRAM_ADDR[10]
A10
D9 SDRAM_ADDR[11]
A11
C9 SDRAM_ADDR[12]
A12
L6
_WP RESOUT_N
K6 TP301
EBI2_WE_N
_WEN
D5 TP302 R301 VREG_MSMP_2.7V
_RAS SDRAM_RAS_N
D6 TP303
100K
_WED SDRAM_WE_N
E6 TP304
_CAS SDRAM_CAS_N
C8
CLK SDRAM_CLK
E5 TP305
_CS1 SDRAM_CS_N
D7 R304
R302 R303
NC124
M3 0
ALE NAND_ALE 100K 10K
M4
CLE NAND_CLE
M9 TP306
_CE
M10
_RE EBI2_OE_N
M2
RY__BY
D8 TP308
CKE SDRAM_CLK_EN
C4 VREG_MSME_1.8V
BA0 SDRAM_ADDR[13]
D4
BA1 SDRAM_ADDR[14]
C7
VCCD1
D2
VCCD2
D13
VCCD3
V3 C313 C314 C316 C315
U302 VCCD4
V8
VCCD5
V12 0.1u 0.1u 0.1u 2.2u
VCCD6
V4 VREG_MSMP_2.7V
VCCQD1
V9
VCCQD2
K12
VCCN2
C6
VSS1 C322 C323
F7
VSS2 0.01u 0.1u
G2
VSS3
G13
VSS4
L13
VSS5
P2
VSS6
P13
VSS7
R8
VSS8
U2
VSS9
U6
VSS10
U10
VSS11
U13
VSS12
J12
NC63
J13
NC64
K1
NC65
K2
NC66
K3
NC67
K4
NC68
K5
NC69
K10
NC70
K11
NC71
K13
NC72
K14
NC73
L1
NC74
L2
NC75
L3
NC76
L4
NC77
L5
NC78
L14
NC79
M5
NC80
M6
NC81
N2
NC82
FB302
8
SPK_RCV+
7
RCV_EN
FB303
5
SPK_RCV-
6
9
+VPWR
C334
0.01u
4 4 5 5 6 6
7 7 8 8 9 9
VREG_WM_2.7V +VPWR
C833 C834
2.2u
MCLK
BCLK
DA_OUT
LRCK
C321 12n
C327 DNI
C901 1u
HEADSET_L
C319 1u R307 1K C320
NAND_CS_N OPT_L
NAND_READY
C317 1u R305 1K C318
OPT_R
C312 12n
C324 1u
HEADSET_R
C900
DNI
CODEC_I2C_SCL
CODEC_I2C_SDA
I2C I/F From MSM
MICBIAS
C328 C329
Near to MIC
47p
10u
SPM0204LE5-QB
G4
6
PWR
5
G3 C330 0.1u
4
G2 MIC1N
3
G1 C331 0.1u
2
OUT MIC1P
1
MIC301
C333
10p
MIC Rev.E
7 7 8 8 9 9
- 155 -
10 10 11 11 12 12
LGE Internal use only
+3.0V_AUDIO
C835 C830
2.2u 2.2u
C831
2.2u 2.2u
U805 WM8959
A6 B3
AVDD HPGND
A5 A3
HPVDD AGND
B2 E6
SPKVDD DGND
F6 B1 C309 C310
DCVDD SPKGND
G6
DBVDD
0.1u 10u
F5
MCLK
G5 C3
BCLK VMID
F4 A2 C311 0.1u
DNC MICBIAS
F3
DACDAT
G4
DACLRC
E4
GPIO1
D1
LOP
G2 C2
GPIO3_BCLK2 LON
G3
GPIO4_DACLRC2
G1
GPIO5_DACDAT2
D3
LIN1
C5 B4
LIN2 LOUT EAR_L
B5
R308 ROUT EAR_R
4.7n 18K C6
LIN3_GPI7
B6
LIN4_RXN
A4
OUT3
4.7n R306 18K D5 C4
RIN3_GPI8 OUT4
E5
RIN4_RXP
D4
RIN1
D6 A1
RIN2 SPKP SPK_R
C1
SPKN SPK_L
F2
CSB_ADDR
F1
SCLK
E3 E1
SDIN ROP
D2
RON
E2
MODE
DVB-H AUDIO CODEC Rev C
AUDIO CODEC LDO
+VPWR +3.0V_AUDIO
U804
R1114D301D-TR-F
1 3
VDD VOUT
4 2
0 NC GND1
R311 6 5
TCXO_EN CE GND2
C829
1u
10 10 11 11 12 12
LGE Internal Use Only
A A
B B
C C
D D
E E
F F
G G
H H