LG 410G Service Manual page 75

7. CIRCUIT DIAGRAM
1 2
Memory (128Mb Nor + 64Mb pSRAM)
A
nBLE
nBHE
nCS0
R206 nRDYMEM
10K R207 51
CKM
RnW
nMOE
V_MEM
nFADV
FDP
R211
100K
nCS3
R212
100K
V_UP
V_DN
KEYPAD
CN200
R226 680
KBR(0)
R228 680
KBR(1)
D
R230 680
KBR(2)
R232 680
KBR(3)
R233 680
KBR(4)
R234 680
KBC(0)
E
R235 680
KBC(1)
R236 680
KBC(2)
R237 680
KBC(3)
R238 680
KBC(4)
1 2
LGE Internal Use Only
3 4
V_MEM
U201 S71NS128PC0
C4 D7
DNU1 VCC
C11
DNU2
E7 E3
DNU3 VCCQ1
H4 G10
DNU4 VCCQ2
H11
DNU5
D5
C202 C203
VSS1
F3
VSS2
0.1u 0.1u
C7 G5
R_LB_ VSSQ1
C8 E12
R_UB_ VSSQ2
H7
R_CE_
H8 G12
R_CRE A_DQ0 DATA_ADD(0)
G11
A_DQ1 DATA_ADD(1)
D3 F9
F_RDY_R_WAIT A_DQ2 DATA_ADD(2)
F8
A_DQ3 DATA_ADD(3)
D6 G7
CLK A_DQ4 DATA_ADD(4)
G6
A_DQ5 DATA_ADD(5)
D8 F5
WE_ A_DQ6 DATA_ADD(6)
F12 F4
OE_ A_DQ7 DATA_ADD(7)
F11
A_DQ8 DATA_ADD(8)
E6 F10
AVD_ A_DQ9 DATA_ADD(9)
G9
A_DQ10 DATA_ADD(10)
E8 G8
F_RST_ A_DQ11 DATA_ADD(11)
E9 F7
F_WP_ A_DQ12 DATA_ADD(12)
F6
A_DQ13 DATA_ADD(13)
E11 G4
F_CE_ A_DQ14 DATA_ADD(14)
D9 G3
F_ACC A_DQ15 DATA_ADD(15)
E4
A16 ADD(16)
A1 D11
NC1 A17 ADD(17)
A14 E10
NC2 A18 ADD(18)
C3 D10
NC3 A19 ADD(19)
C12 E5
NC4 A20 ADD(20)
H3 D4
NC5 A21 ADD(21)
H12 D12
NC6 A22 ADD(22)
K1
NC7
K14
NC8
SPK
END
KB200
R213 150
RPWON
VA200 EVLC14S02050
VA202
VA201 EVLC14S02050 EVLC14S02050
VA203 EVLC14S02050
VA204 EVLC14S02050
SOFT1
OK OK SOFT
1 2 3
KB201 KB202 KB203 KB204 LEFT KB205
MENU
KB206 KB207 KB208 KB209
4 5 6 UP
KB210 KB211 KB212 KB213 KB214
7 8 9
RIGHT
SEND
CLEAR
KB215 KB216 KB217 KB218 CLEAR
* 0 #
DOWN
3 4
5 6 7
SPEAKER AMPLIFIER
U200
R202
SPKNA
C204 220n R203 5.1K C3
4.7
C206
C205 220n R204 5.1K C2
47p
R208
B1
SPKPA SPK_EN
4.7
C1
R210 C208
C214 C215
47p 47p 100K
1u
KEY BACKLIGHT
VBAT
R215 R216 R217 R218 R219 R220 R221 R222 R223 R224
C218
C219
100ohm 100ohm 100ohm 100ohm 100ohm 100ohm 100ohm 100ohm 100ohm 100ohm
1u 1u
3
R229 10K Q200
2
KEY_BACKLIGHT
2SC5585
1
R231
100K
5
- 76 -
8 9 10
C200 DNI
VBAT
R200 20K
C201 DNI
R201 20K FB200
TPA6205A1ZQVR
A3
IN- VDD
R205 0
B3
IN+ VO+ SPK_P
C207 47p
R209 0
A1
_SHUTDOWN VO- SPK_N
B2
BYPASS GND C210 C211 C212 C213
47p 47p DNI DNI
C216 C209
0.1u 2.2u
HANDSET MICROPHONE
MICBIAS
R214
1K
C220 C221 R225
VA205
0.1u 10u DNI
C217
L201
100nH
39p
L200
C222 22n
MICIP
MIC200
100nH R227 0
1
C223 OUT
2
DNI G1
3
C225
G2
C224 22n 4
MICIN G3
DNI
5
PWR
6
G4
SPM0204LE5-QB
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
A
B
C
D