Read LG 32LH70YD (CHASSIS:LJ91D) Service Manual online
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
2008.10.15
BCM3556 & NAND FLASH
BCM (BRAZIL VENUS)
NAND_IO[0-7]
NAND_IO[7]
NAND_IO[6]
NAND_IO[5]
NAND_IO[4]
NAND_IO[3]
NAND_IO[2]
NAND_IO[1]
NAND_IO[0]
NAND_IO[0]
NAND_IO[1]
NAND_IO[3]
NAND_IO[2]
NAND_IO[5]
NAND_IO[4]
NAND_IO[7]
NAND_IO[6]
R180
4.7K
R194
4.7K
COMP2_DET
14:A5
SDA3_3.3V
7:B6
A_DIM
I3;4:A6
BCM_AVC_DEBUG_TX2
G5
R193
4.7K
NAND_IO[0-7]
R176
4.7K
R170
4.7K
NAND_REb
C3
R182
22
NAND_WEb
E5
NAND_REb
E6
VREG_CTRL
R196
0
OPT
NAND_ALE
E6
BCM_AVC_DEBUG_RX1
G6
FLASH_WP_1
D3.3V
BCM_AVC_DEBUG_TX1
G6
R198
0
OPT
SDA0_3.3V
14:A6
R116
4.7K
SDA2_3.3V
B5;12:F3
C115
0.1uF
BLUETOOTH_RESET
I3;14:I3
R184
4.7K
BCM_AVC_DEBUG_TX2
C7
R174
22
RF_SWITCH
14:A6
BCM_AVC_DEBUG_RX2
C6
BCM_RX
BCM_TX
NAND_ALE
C2
BCM_AVC_DEBUG_RX2
G5
D3.3V
R175
22
R136
4.7K
PWM_DIM
I3;4:A5;7:I5
C114
0.1uF
SDA1_3.3V
3:D3;2:AH5
R186
22
R109
0
OPT
GAIN_SWITCH
14:A6
D3.3V
R179
22
SIDE_CVBS_DET
D3.3V
NAND_WEb
C2
SCL3_3.3V
7:B6
R181
22
SCL0_3.3V
14:A6
R105
22
BCM_AVC_DEBUG_RX1
C7
R185
22
C136
10uF
6.3V
NAND_CEb
E6
NAND_CLE
E5
R177
4.7K
NAND_CEb
C3
R183
4.7K
D3.3V
R171
4.7K
SCL1_3.3V
3:D3;2:AH5
NAND_CLE
C2
R187
4.7K
NAND_IO[0-7]
NAND_RBb
E5
P100
GIL-G-06-S3T2
OPT
1
2
3
4
5
6
TUNER_RESETb
I3;14:A6
R192
4.7K
D3.3V
R178
22
SCL2_3.3V
B5;12:F3
FRC_RESET
7:H2
AV1_CVBS_DET
14:A5
R197
0
OPT
R161
0
NAND_RBb
C3
COMP1_DET
14:A6
AUDIO_M_CLK
3:C4
Q101
KRC103S
KRC103S
E
B
C
BCM_AVC_DEBUG_TX1
C7
DSUB_DET
R189
0
OPT
R195
0
OPT
R103
100
AMP_RST
R2005
100 OPT
R2004
100
R2008
100
R2009
100
PWM_DIM
G7;4:A5;7:I5
R2011
2.7K
R2014
2.7K
HDMI_HPD_IN
A_DIM
G6;4:A6
VREG_CTRL
BLUETOOTH_RESET
AMP_RST
G7;12:I4;3:C5
R2015
2.7K
R2013
2.7K
R2016
2.7K
R2010
2.7K
D3.3V
HDMI_HPD_IN
D3.3V
C416
0.1uF
0.1uF
SDA2_3.3V
I4;12:F3
D3.3V
IC400
KIA7029AF
2
G
3
O
1
I
R419
4.7K
SCL2_3.3V
I4;12:F3
R422
4.7K
R2003
0
0
OPT
IC403
AT24C512BW-SH-T
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
RESET
10:I2;12:I5
R412
22
22
R408
330
330
R411
22
22
D3.3V
SYS_RESETb
10:E4
NAND_IO[5]
E3;E6
NAND_IO[6]
E3;E6
NAND_IO[2]
E3;E6
D3.3V
D3.3V
NAND_IO[0]
E3;E6
NAND_IO[3]
E3;E6
D3.3V
BIT_SEL
R2018
100
OPT
POWER_DET
12:B3;12:I4
R2025
0
0
R117
33
D3.3V
D3.3V
NAND_IO[4]
E3;E6
R191
2.7K
R2040
2.7K
R131
2.7K
D3.3V
TUNER_RESETb
G7;14:A6
R3016
4.7K
4.7K
R409
910
C400
10uF
R410
10K
IC101
NAND01GW3A2CN6E
26
NC_17
27
NC_18
28
NC_19
29
I/O0
30
I/O1
31
I/O2
32
I/O3
33
NC_20
34
NC_21
35
NC_22
36
VSS_2
37
VDD_2
38
NC_23
39
NC_24
40
NC_25
41
I/O4
42
I/O5
43
I/O6
44
I/O7
45
NC_26
46
NC_27
47
NC_28
48
NC_29
17
AL
3
NC_3
6
NC_6
16
CL
15
NC_10
14
NC_9
13
VSS_1
12
VDD_1
11
NC_8
10
NC_7
9
E
8
R
7
RB
4
NC_4
5
NC_5
25
NC_16
24
NC_15
23
NC_14
2
NC_2
22
NC_13
21
NC_12
1
NC_1
20
NC_11
19
WP
18
W
LVDS_SEL
R3030
100
OPT
R199
22
OPT
R2002
22
OPT
R2001
22
OPT
DDC_SCL
I3;14:A6
DDC_SDA
I3;14:A6
R2024
22
R160
22
R102
22
R2032
2.7K
OPT
R317
2.7K
R2033
2.7K
R316
2.7K
R315
2.7K
OPT
R321
2.7K
OPT
R2029
2.7K
OPT
R314
2.7K
R2030
2.7K
R2031
2.7K
IC100
BCM3556
GPIO_00
N26
GPIO_01
L26
GPIO_02
N25
GPIO_03
L25
GPIO_04
K27
GPIO_05
K28
GPIO_06
K24
GPIO_07
K26
GPIO_08
K25
GPIO_09
AA27
GPIO_10
AA28
GPIO_11
AA26
GPIO_12
L1
GPIO_13
L3
GPIO_14
L2
GPIO_15
Y25
GPIO_16
Y26
GPIO_17
M27
GPIO_18
AA25
GPIO_19
R25
GPIO_20
N28
GPIO_21
N27
GPIO_22
AH18
GPIO_23
P23
GPIO_24
M23
GPIO_25
AD19
GPIO_26
AE19
GPIO_27
M4
GPIO_28
M5
GPIO_29
L23
GPIO_30
Y28
GPIO_31
Y27
GPIO_32
G2
GPIO_33
G3
GPIO_34
G5
GPIO_35
G6
GPIO_36
G4
GPIO_37
L24
GPIO_38
P25
GPIO_39
L5
GPIO_40
K4
GPIO_41
K1
GPIO_42
L27
GPIO_43
M26
GPIO_44
N23
GPIO_45
R28
GPIO_46
R27
GPIO_47
R26
GPIO_48
P28
GPIO_49
P27
GPIO_50
K6
GPIO_51
K5
GPIO_52
P26
GPIO_53
M3
GPIO_54
M2
GPIO_55
M1
GPIO_56
L4
GPIO_57
L6
SGPIO_00
W27
SGPIO_01
W28
SGPIO_02
W26
SGPIO_03
W25
SGPIO_04
J2
SGPIO_05
J1
SGPIO_06
K3
SGPIO_07
K2
EBI_ADDR3
J23
EBI_ADDR4
J24
EBI_ADDR2
H25
EBI_ADDR1
H24
EBI_ADDR0
H23
EBI_ADDR5
J25
EBI_ADDR6
F26
EBI_ADDR8
H28
EBI_ADDR9
J26
EBI_ADDR13
H27
EBI_ADDR12
G26
EBI_ADDR11
J27
EBI_ADDR10
J28
EBI_ADDR7
F27
EBI_TAB
G24
EBI_WE1B
H26
EBI_CLK_IN
G27
EBI_CLK_OUT
G28
EBI_RWB
K23
EBI_CS0B
G25
NAND_DATA0
U24
NAND_DATA1
T26
NAND_DATA2
T27
NAND_DATA3
U26
NAND_DATA4
U27
NAND_DATA5
V26
NAND_DATA6
V27
NAND_DATA7
V28
NAND_CS0B
T24
NAND_ALE
R23
NAND_REB
T23
NAND_CLE
T25
NAND_WEB
R24
NAND_RBB
U25
SF_MISO
W24
SF_MOSI
U23
SF_SCK
V23
SF_CSB
V24
C3024
4700pF
15
Open Drain
9
SF_MISO
SF_MOSI
SF_SCK
SF_CSB
* I2C MAP
* I2C_0 : TUNER
* I2C_1 : Audio amp, HDMI S/W
* I2C_2 : NVRAM,Micom
* I2C_3 : FRC
Hot Plug input pin should be feeded over 5mA.
BCM Recommend
BCM Recommend
NVRAM
RESET
NAND_IO[0] : Flash Select (1)
0 : Boot From Serial Flash
1 : Boot From NAND Flash
0 : Boot From Serial Flash
1 : Boot From NAND Flash
NAND_IO[1] : NAND Block 0 Write (DNS)
0 : Enable Block 0 Write
1 : Disable Block 0 Write
0 : Enable Block 0 Write
1 : Disable Block 0 Write
NAND_IO[3:2] : NAND ECC (10)
00 : No ECC
01 : 1 ECC Bit
10 : 4 ECC Bit
11 : 8 ECC Bit
00 : No ECC
01 : 1 ECC Bit
10 : 4 ECC Bit
11 : 8 ECC Bit
NAND_IO[4] : CPU Endian (0)
0 : Little Endian
1 : Big Endian
0 : Little Endian
1 : Big Endian
NAND_IO[6:5] : Xtal Bias Control (1, DNS)
00 : 1.2mA
01 : 1.8mA
10 : 2.4mA (Recommand)
11 : 3.0mA
00 : 1.2mA
01 : 1.8mA
10 : 2.4mA (Recommand)
11 : 3.0mA
Boot Strap
* NAND FLASH MEMORY 1Gbit (128M)
JANG.J.H
IF FUNDMENTAL IS USED => LOW
IF DIP IS USED => HIGH
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