LG GX500 Service Manual page 126

7. CIRCUIT DIAGRAM
12 11
L
128K DUAL PORT STATIC RAM
EUSY0285602, CYPRESS
K K7
S1_DATA[0]
IO0L
S1_DATA[1] H6
IO1L
K8
S1_DATA[2]
IO2L
S1_DATA[3] G6
IO3L
J7
S1_DATA[4]
IO4L
S1_DATA[5] K9
IO5L
J8
S1_DATA[6]
IO6L
S1_DATA[7] K10
IO7L
J9
S1_DATA[8]
IO8L
S1_DATA[9] J10
IO9L
H10
S1_DATA[10] IO10L
S1_DATA[11] G7
IO11L
G8
S1_DATA[12] IO12L
S1_DATA[13] G10
IO13L
G9
S1_DATA[14] IO14L
S1_DATA[15] F9
IO15L
J H1
S1_ADD[0] A0L
S1_ADD[1] F4
A1L
S1_ADD[2] G2
A2L
J1
S1_ADD[3]
A3L
S1_ADD[4] H2
A4L
G3
S1_ADD[5]
A5L
S1_ADD[6] K1
A6L
J2 U702
S1_ADD[7]
A7L
S1_ADD[8] K2
A8L CYDM128B16-55BVXI
H3
S1_ADD[9]
A9L
S1_ADD[10] J3
A10L
K3
S1_ADD[11]
A11L
S1_ADD[12] G4
A12L
K6
_WR_S1 R__WL
K4
_BC1_S1 _UBL
H4
_BC0_S1 _LBL
TP701
_DPRAM_CS_S1 H5
_CEL
G5
I _RD_S1 _OEL
_DPRAM_BUSY_S1 F3
_BUSYL
K5
_DPRAM_SEM_S1 _SEML
_DPRAM_INT_S1 E4
R704 47K _INTL
1V8_SD G1
0DR0
F2
R709 47K 0DR1
D2
0DR2
E3
R711 47K 0DR3
D1
0DR4
A5
VSS1
A10
VSS2
C10
VSS3
E1
VSS4
E5
VSS5
E6
VSS6
E10
VSS7
F6
H VSS8
J6
VSS9
G
F
U703 FSA2268TUMX_F113
E
SIM1_HS_SPK_L 10
1B0 1A
FM_L 1
1B1 S1
SIM1_HS_SPK_R 2
2B0 2A
FM_R 3
2B1 S2
4
GND VCC
D
C
B
A
12 11
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
10 9 8
F8
S2_DATA[0]
IO0R
E9 S2_DATA[1]
IO1R
D10
S2_DATA[2]
IO2R
F7 S2_DATA[3]
IO3R
E7
S2_DATA[4]
IO4R
D9 S2_DATA[5]
IO5R
B10
S2_DATA[6]
IO6R
C9 S2_DATA[7]
IO7R
D8
S2_DATA[8]
IO8R
B9 S2_DATA[9]
IO9R
A9
IO10R S2_DATA[10]
C8 S2_DATA[11]
IO11R
A8
IO12R S2_DATA[12]
D7 S2_DATA[13]
IO13R
C7
IO14R S2_DATA[14]
A7 S2_DATA[15]
IO15R
C1
A0R S2_ADD[0]
C2 S2_ADD[1]
A1R
C3 S2_ADD[2]
A2R
B1
S2_ADD[3]
A3R
B2 S2_ADD[4]
A4R
A1
S2_ADD[5]
A5R
C4 S2_ADD[6]
A6R
B3
S2_ADD[7]
A7R
A2 S2_ADD[8]
A8R
B4
S2_ADD[9]
A9R
D5 S2_ADD[10]
A10R
A3
S2_ADD[11]
A11R
D6 S2_ADD[12]
A12R
B6
R__WR _WR_S2
A4
_UBR _BC1_S2
C5
_LBR _BC0_S2
TP702
B5 _DPRAM_CS_S2
_CER
B7
_OER _RD_S2
D3 _DPRAM_BUSY_S2
_BUSYR
A6 VSD2_1V8
_SEMR
D4 _DPRAM_INT_S2
_INTR R706 47K
J4
IRR0
R707 47K
C6
IRR1 R705 47K
H8 1V8_SD
NC1
H9
NC2 R708 47K
F1
_SFEN
E2 R703 47K
M__S
F5
VCC1
J5
VSD2_1V8
VCC2
H7
VDDIOL1
F10
VDDIOL2
B8
VDDIOR1
E8
VDDIOR2
AUDIO AMP SUB SYSTEM
2V62_VIO
C705 1u
RCV_P
C706 1u
RCV_N
E1
2V62_VIO INM+
D1
INM-
C703 220n
C1
INL
8 AMP_IN_L AMP_IN_L
C707 220n
C2
INR
7 FM_HS_SEL AMP_IN_R
5 AMP_IN_R
C3
BYPASS
6
A1
I2CVDD
B2
9 I2C1_SDA SDA
B3
I2C1_SCL SCL
C714
1U
C708
0.1uF C713
2.2u
C704
2.2uF
10 9 8
7 6 5
VBAT
FB701
SPK
C701
C712
10u
0.1u
47pF
C716
A4
LSOUT+ SPK_P
A3
LSOUT- SPK_N SPK_P
C717
D2
SET 100pF
U701
LM49151TL
SPK_N
E3
HPL HSO_L
C715
47pF
E2
HPR HSO_R
C711 C710
0.1uF 27pF 27pF
C702
C709
2.2uF
7 6 5
- 127 -
4 3 2
L704 47n
L703 47n 2
1
CN701
VA701 VA702
OJ701
4 3 2
1
L
K
J
I
H
G
F
E
D
C
B
OJ703 OJ705 OJ702
A
1
LGE Internal Use Only