DOWNLOAD LG 32LT777H (CHASSIS:LA2FZ) Service Manual ↓ Size: 7.93 MB | Pages: 52 in PDF or view online for FREE

Model
32LT777H (CHASSIS:LA2FZ)
Pages
52
Size
7.93 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
32lt777h-chassis-la2fz.pdf
Date
PREV: LG 32LT770H (CHASSIS:LA2FF) Service Manual

LG 32LT777H (CHASSIS:LA2FZ) Service Manual ▷ View online

THERMAL
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.
R9030
0
R9029
0
NON_LAN2_HUB
LAN_ACTIVE_Y
C9008
10pF
50V
OPT
IC9000
RTL8201FN 
1
MDI+[0]
2
MDI-[0]
3
NC_1
4
MDI+[1]
5
MDI-[1]
6
AVDD33_1
7
NC_2
8
NC_3
9
NC_4
10
NC_5
11
EN_LDO_OUT
12
TXER
13
RXDV
14
RXD[0]
15
DVDD33_1
16
RXD[1]
17
RXD[2]
18
RXD[3]/CLK_CTL
19
RXC
20
INTB
21
DVDD33_2
22
TXC
23
TXD[0]
24
TXD[1]
25
TXD[2]
26
TXD[3]
27
TXEN
28
DVDD10
29
PHYRSTB
30
MDC
31
MDIO
32
LED2/PHYAD[2]
33
PMEB
34
LED0/PHYAD[0]
35
LED1/PHYAD[1]
36
CRS/CRS_DV
37
DVDD33_3
38
COL
39
RXER/FXEN
40
DVDD10OUT
41
AVDD33_2
42
CKXTAL1
43
CKXTAL2
44
NC_6
45
NC_7
46
RSET
47
NC_8
48
AVDD10OUT
49
[EP]GND
R9013
0
C9001
0.1uF
16V
C9012
0.1uF
16V
C9011
0.1uF
16V
/RTL8201_PMEB
C9002
0.1uF
16V
/ETHERNET_RESET
C9013
0.1uF
16V
HUB2PHY_TXD1
C9000
0.1uF
16V
HUB2PHY_TXEN
C9007
0.1uF
16V
Q9000
AO3407A
FET_AOS
G
D
S
ETHERNET_MDC
TR0P
/RTL8201_INT
C9010
0.1uF
16V
R9008
100K
/WOL_ON
TR1N
TR0N
ETHERNET_MDIO
TR1P
C9004
0.1uF
16V
C9014
0.1uF
16V
PHY2HUB_RXD0
PHY2HUB_CRSDV
+3.5V_ST_LAN
L9000
BLM18PG121SN1D
LAN_LINK_G
X9000
25.0MHz
R9009
2.49K
1%
C9006
0.1uF
16V
R9014
0
+3.5V_ST
TR1P
D9005
30V
Diode_OLD
D9001
30V
D9009
Diode_OLD
R9045
510
TR0N
LAN_LINK_G
D9007
30V
Diode_OLD
TR1N
JK9001
43-10013AD11-1 
LED_LAN_OLD
1
2
3
4
5
6
7
8
D1
D2
D3
D4
9
TR0P
R9046
510
LAN_ACTIVE_Y
D9011
30V
Diode_OLD
D9003
30V
D9008
30V
Diode_OLD
C9016
0.1uF
R9042
49.9
1%
R9041
49.9
1%
D9000
30V
C9021
0.1uF
16V
R9039
49.9
1%
R9044
510
R9040
49.9
1%
ETNHUB_EPHY_TXOP0
D9004
30V
Diode_OLD
R9043
510
ETNHUB_EPHY_RXIN0
D9010
30V
Diode_OLD
ETNHUB_EPHY_TXON0
JK9000
43-10013AD11-1 
LED_LAN_OLD
1
2
3
4
5
6
7
8
D1
D2
D3
D4
9
ETNHUB_EPHY_RXIP0
D9002
30V
L9002
BLM18PG121SN1D
C9015
0.1uF
D9006
30V
Diode_OLD
ETNHUB_AVDD18
LAN_DVDD33
L9001
BLM18PG121SN1D
+3.5V_ST_LAN
ETNHUB_DVDD33
R9011
4.7K
R9026
4.7K
R9027
4.7K
R9032
4.7K
R9025
4.7K
R9038
4.7K
R9012
4.7K
R9001 4.7K
R9000 4.7K
NON_LAN2_HUB
R9024
0
R9002
470K
R9010
1M
1%
OPT
R9007
4.7K
NON_LAN2_HUB
C9017
1000pF
C9019
1000pF
C9018
1000pF
C9020
1000pF
C9022
0.01uF
C9023
0.01uF
OPT
PHY2HUB_RXD1
TP9000
GYSPD
GXFULL
R9048
0
NON_LAN2_HUB
R9049
0
NON_LAN2_HUB
R9050
0
NON_LAN2_HUB
R9047
0
NON_LAN2_HUB
C9024
0.1uF
LAN2_HUB
R9051
49.9
1%
LAN2_HUB
R9052
49.9
1%
LAN2_HUB
R9053
49.9
1%
LAN2_HUB
C9025
0.1uF
LAN2_HUB
R9054
49.9
1%
LAN2_HUB
ETNHUB_AVDD18
L9003
BLM18PG121SN1D
LAN2_HUB
LAN_LINK3
LAN_ACT3
R9055
0
LAN2_HUB
R9056
0
LAN2_HUB
R9057
0
NON_LAN2_HUB
R9058
0
NON_LAN2_HUB
ETNHUB_EPHY_RXIN1
ETNHUB_EPHY_TXOP1
ETNHUB_EPHY_RXIP1
ETNHUB_EPHY_TXON1
R9059
0
LAN2_HUB
R9060
0
LAN2_HUB
R9061
0
LAN2_HUB
R9062
0
LAN2_HUB
R9063
0
LAN2_HUB
R9064
0
OPT
C9003
15pF
50V
Xtal_Old
C9005
15pF
50V
Xtal_Old
R9066
4.7K
NON_LAN2_HUB
R9067
4.7K
OPT
HUB2PHY_TXD0
PHY2HUB_REF_CLK
R9016
0
NON_LAN2_HUB
R9017
33
NON_LAN2_HUB
R9020
33
NON_LAN2_HUB
LAN_AVDD33
LAN_DVDD33
LAN_DVDD33
LAN_AVDD33
LAN_DVDD33
LAN_DVDD33
LAN_DVDD33
LAN_DVDD33
LAN_DVDD33
LAN_DVDD33
Q9001
MMBT3904(NXP)
E
B
C
R9070
1K
R9069
10K
R9068
100
ETNHUB_DVDD33
GXFULL
LAN1_DET
Q9002
MMBT3904(NXP)
E
B
C
R9071
100
R9072
10K
LAN2_DET
LAN_LINK3
ETNHUB_DVDD33
R9073
1K
ZD9000
5.6B
ZD9001
5.6B
R9065
10K
ETNHUB_PWR_ON/OFF
Q9003
2SC3052
E
B
C
LAN_AVDD33
C9003-*1
12pF
50V
Xtal_matching
C9005-*1
12pF
50V
Xtal_matching
R9059-*1
10
1/16W
5%
for EMI
R9060-*1
10
1/16W
5%
for EMI
R9061-*1
10
1/16W
5%
for EMI
R9062-*1
10
1/16W
5%
for EMI
D9004-*1
18pF
50V
for EMI_Cap
D9006-*1
18pF
50V
for EMI_Cap
D9008-*1
18pF
50V
for EMI_Cap
D9010-*1
18pF
50V
for EMI_Cap
D9005-*1
68pF
50V
for EMI_Cap
D9007-*1
68pF
50V
for EMI_Cap
D9009-*1
68pF
50V
for EMI_Cap
D9011-*1
68pF
50V
for EMI_Cap
JK9001-*1
RJ45VT-01SLGY002 
LAN_FOR EMI
1
2
3
4
5
6
7
8
L1
L2
L3
L4
13
JK9000-*1
RJ45VT-01SLGY002 
LAN_FOR EMI
1
2
3
4
5
6
7
8
L1
L2
L3
L4
13
Q9000-*2
DMP2130L
FET_2.5V_DIODES
G
D
S
Q9000-*1
AO3435
FET_2.5V_AOS
G
D
S
RJ 45
PHY ADDRESS CONFIG
MCU PORT TO BE ASSIGNED!!
2
1
0
TO MCU
CONFIG PHY_ADDRESS = 111
MII MODE
TO RJ45
       TO SOC/ MCU
TO Ethernet HuB
TO Ethernet HuB
Place Closed 
Ethernet PHY
Ethernet Block
PHY chip for WOL
LAN 2
LAN 1
EXT AUX RJ45
Plz Check OPT component!!
RMII MODE
2011.08.26
xxLT760H-UA
90
Place close at
RTL8201FN(IC9000) side 
LAN1 Detect
LAN2 Detect
TO SOC
TO SOC
Connected
Not Connected
GXFULL
LAN1_DET
Low
Low
High
High
Connected
LAN2_DET
Low
Not Connected
High
Low
LAN_LINK3
High
LAN1_DET
Status
G37
MTK pin no
Input
Input
G36
Status
LAN2_DET
MTK pin no
LED_LAN_OLD
EMI PASS
LAN_FOR EMI
EMI PASS
D9004~D9011 : Use ’for EMI_Cap’ option
R9059~R9062 : Use ’for EMI’ option
D3624/D3625 : Use ’for EMI_Cap’ option
(Apply the below)
THERMAL
THERMAL
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.
+24V
R9117
200K
1/8W
1%
P_5V
C9106
22uF
25V
C9107
0.1uF
50V
EXT_5V
C9108
1uF
10V
EXT_5V
L9101
CB3216PA501E
EXT12V_CTRL
C9111
10uF
25V
EXT_5V
R9109
2.4K
EXT_PWR_DET
P_12V
R9111
22
C9103
22uF
16V
EXT_5V
C9102
3.3uF
50V
P_12V
C9115
3300pF
50V
EXT_5V
R9106
10K
1/16W
1%
R9102
1.2K
1/16W
EXT_PWR_DET
R9100
18K
R9101
1K
IC9103
TPS54327DDAR
EXT_5V
3
VREG5
2
VFB
4
SS
1
EN
5
GND
6
SW
7
VBST
8
VIN
9
[EP]GND
L9102
BLM18PG121SN1D
EXT_5V
R9104
43
R9105
100K
EXT_PWR_DET
IC9101
MP5000DQ
3
ENABLE/FAULT
2
DV/DT
4
I-LIMIT
1
GND
5
NC
6
SOURCE_1
7
SOURCE_2
8
SOURCE_3
9
SOURCE_4
10
SOURCE_5
11
VCC
C9109
0.1uF
50V
EXT_12V
D9100
MBRA340T3G
R9113
56K
1%
EXT_5V
R9115
100
EXT_PWR_DET
P_12V
IC9100
APX803D29
EXT_PWR_DET
1
GND
3
VCC
2
RESET
C9110
0.1uF
50V
R9116
12K
1%
EXT_5V
D9101
EXT_PWR_DET
A2
C
A1
R9114
20K
1/16W
1%
C9113
0.1uF
50V
R9112
11K
1%
EXT_5V
IC9102
MP4460DQ-LF-Z
3
EN
2
SW_2
4
COMP
1
SW_1
5
FB
6
GND
7
FREQ
8
VIN_1
9
VIN_2
10
BST
11
EP_GND
C9112
100pF
EXT_5V
L9104
3.6uH
NR8040T3R6N
EXT_5V
EXT_12V
C9105
470pF
50V
R9108
200
EXT_PWR_DET
EXT5V_CTRL
R9107
150K
R9110
100K
C9104
0.1uF
50V
EXT_5V
R9103
10K
EXT_5V
L9103
CB3216PA501E
EXT_PWR_DET
R9118
270K
1/16W
1%
L9100
22UH
C9101
22uF
16V
EXT_5V
C9100
0.1uF
16V
OPT
C9114
150pF
50V
C9118
0.1uF
EXT_5V
C9117
10uF
10V
EXT_5V
L9105-*1
CIS21J121
EXT_5V_BEAD_SS
120
EXT_5V
IC9104
AP2191DSG
EXT_5V
3
IN_2
2
IN_1
4
EN
1
GND
5
FLG
6
OUT_1
7
OUT_2
8
NC
C9116
22uF
16V
EXT_5V
R9119
2K
1/8W
5%
EXT_5V
R9120
2K
1/8W
5%
EXT_5V
P_5V
L9105
MLB-201209-0120P-N2
120-ohm
EXT_5V_BEAD_MAG
R9121
47
EXT_5V
R9122
10K
EXT_5V
2011.02.09
xxLT760H-UA
91
5V/12V Power Out
close IC9103
close to pin
Switching noise reducing [MPS recommend]
EXTERNAL_POWER DETECTION
EXTERNAL_POWER OUT 5V/12V
$0.21
Vout=(1+R1/R2)*0.765=5.03V
$0.077
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.
C9203
1uF
25V
OPT
R9202
10K
OPT
C9204
0.1uF
+3.3V_PROIDIOM
R9205
100
OPT
X9200
27MHz
6
1
2
5
3
4
C9202
10uF
16V
L9201
MLB-201209-0120P-N2
XMARK_1.8V
D9200
1N4148W
OPT
+3.3V_PROIDIOM
C9205
100uF
16V
L9200
MLB-201209-0120P-N2
+3.3V_PROIDIOM
IC9200
MAX809RTR 
Onsemi_PI_OLD
1
GND
3
VCC
2
RESET
R9203
100
C9201
0.1uF
16V
+3.3V_PROIDIOM
C9208
22uF
16V
+3.3V_PROIDIOM
R9207
47K
+3.3V_NORMAL
+3.3V_VCCINT
R9201
22
R9200
4.7K
C9206
0.1uF
16V
R9206
47K
/PROIDIOM_RESET_SOC
IC9201
AZ1117H-1.8TRE1(EH13A)
2
OUTPUT
3
INPUT
1
ADJ/GND
L9202
MLB-201209-0120P-N2
PROIDIOM_SYSCLK
R17
PROIDIOM_RESET
M16
+3.3V_PROIDIOM
GND
C9200
22uF
16V
C9207
0.1uF
L9210
BLM18PG121SN1D
C9220
0.1uF
PROIDIOM_SYSCLK
C19
L9209
BLM18PG121SN1D
L9208
BLM18PG121SN1D
XMARK_1.8V
C9219
0.1uF
C9229
0.1uF
C9227
0.1uF
R9226
22
R9225
22
R9223
0
XMARK_1.8V
R9211
100K
OPT
C9223
0.1uF
C9221
0.1uF
C9224
0.1uF
XMARK_1.8V
C9226
0.1uF
C9209
0.1uF
C9228
0.1uF
C9230
0.1uF
L9203
BLM18PG121SN1D
+3.3V_PROIDIOM
IC9202
LGDT1001
H1
CLK1
B8
IO2_29/TP_SOP
B9
IO2_21/TP_VALID
B10
IO2_17/TP_ERR
C5
IO2_41/TP_DATA[7]
C6
IO2_36/TP_DATA[6]
C7
IO2_31/TP_DATA[5]
C8
IO2_25/TP_DATA[4]
C9
IO2_23/TP_DATA[3]
C10
IO2_18/TP_DATA[2]
C11
IO2_14/TP_DATA[1]
C12
IO2_8/TP_DATA[0]
M1
IO1_29
C3
IO1_2
C2
IO1_3
B1
IO1_4
G5
IO1_5
F4
IO1_6
D3
IO1_7
E4
IO1_8
F5
IO1_9
E3
IO1_10
D2
IO1_11
E2
IO1_12
G1
CLK0
B2
IO2_48/RESET
D14
IO3_37/I2C_SCK
E14
IO3_34/I2C_SDA
K4
DCLK
K13
CONF_DONE
H3
NCONFIG
J4
NCE
H2
DATA0
G4
IO1_21SO
K3
IO1_22/ASDO
H4
NCEO
J13
NSTATUS
J3
MSEL0
J2
MSEL1
J14
TCK
H15
TDO
J15
TMS
H14
TDI
D4
IO1_1/INIT_DONE
D1
IO1_13
F3
IO1_14
G3
IO1_15
F2
IO1_16
E1
IO1_17
G2
IO1_18
F1
IO1_19
H5
IO1_20
J1
IO1_23
K2
IO1_24
L3
IO1_25
K1
IO1_26
L1
IO1_27
L2
IO1_28
N1
IO1_30
M2
IO1_31
N2
IO1_32
M3
IO1_33
L5
IO1_34
M4
IO1_35
N3
IO1_36
K5
IO1_37
L4
IO1_38
R1
IO1_39
P2
IO1_40
P3
IO1_41
N4
IO1_42
R2
IO4_1
T2
IO4_2
R3
IO4_3
P4
IO4_4
R4
IO4_5
T4
IO4_6
R5
IO4_7
M5
IO4_9
M6
IO4_10
N5
IO4_11
N6
IO4_12
R6
IO4_14
M7
IO4_15
T6
IO4_16
R7
IO4_17
N7
IO4_19
T8
IO4_21
M8
IO4_22
N8
IO4_23
M10
IO4_25
T9
IO4_27
N9
IO4_29
T11
IO4_31
N10
IO4_32
N11
IO4_36
N12
IO4_37
M9
IO4_38
M11
IO4_39
M12
IO4_40
R12
IO4_42
T13
IO4_43
R13
IO4_44
R14
IO4_45
P13
IO4_46
T15
IO4_47
R15
IO4_48
N13
IO3_1
P14
IO3_2
P15
IO3_3
R16
IO3_4
N15
IO3_5
N16
IO3_6
K12
IO3_7
K14
IO3_8
L12
IO3_9
N14
IO3_10
M13
IO3_11
M14
IO3_12
L13
IO3_13
M15
IO3_14
M16
IO3_15
L14
IO3_16
L15
IO3_17
L16
IO3_18
K16
IO3_19
K15
IO3_20
J16
IO3_21
H16
CLK3
G16
CLK2
H12
IO3_22
G14
IO3_23
G13
IO3_24
G15
IO3_25
F16
IO3_26
F14
IO3_27
F13
IO3_28
F15
IO3_29
E16
IO3_30
E15
IO3_31
D16
IO3_32
D15
IO3_33
F12
IO3_35
E13
IO3_36
H13
IO3_38
G12
IO3_39
B16
IO3_40
C15
IO3_41
C14
IO3_42
D13
IO3_43
B15
IO2_1
A15
IO2_2
B14
IO2_3
C13
IO2_4
B13
IO2_5
A13
IO2_6
B12
IO2_7
A2
IO2_47
E12
IO2_9
E11
IO2_10
E9
IO2_11
D12
IO2_12
D11
IO2_13
B3
IO2_46
B11
IO2_15
A11
IO2_16
D10
IO2_19
A9
IO2_20
D9
IO2_22
C4
IO2_45
E10
IO2_24
B4
IO2_44
D8
IO2_26
E8
IO2_27
A8
IO2_28
D7
IO2_30
A4
IO2_43
B7
IO2_32
A6
IO2_33
E7
IO2_34
P12
IO4_41/CH_DATA[7]
P11
IO4_35/CH_DATA[6]
P10
IO4_33/CH_DATA[5]
P9
IO4_28/CH-DATA[4]
P8
IO4_24/CH_DATA[3]
P7
IO4_18/CH_DATA[2]
P6
IO4_13/CH_DATA[1]
P5
IO4_8/CH_DATA[0]
R10
IO4_30/CH_ERR
R9
IO4_26/CH_SOP
R8
IO4_20/CH_VALID
R11
IO4_34/CH_CLK
A7
VCCINT_1
A10
VCCINT_2
G8
VCCINT_3
G10
VCCINT_4
H7
VCCINT_5
H9
VCCINT_6
J8
VCCINT_7
J10
VCCINT_8
K7
VCCINT_9
K9
VCCINT_10
T7
VCCINT_11
T10
VCCINT_12
C1
VCCIO1_1
G6
VCCIO1_2
P1
VCCIO1_3
T3
VCCIO4_1
L7
VCCIO4_2
L10
VCCIO4_3
T14
VCCIO4_4
P16
VCCIO3_1
K11
VCCIO3_2
C16
VCCIO3_3
A14
VCCIO2_1
F10
VCCIO2_2
F7
VCCIO2_3
A3
VCCIO2_4
A1
GND_1
A16
GND_2
A5
GND_3
A12
GND_4
F6
GND_5
F8
GND_6
F9
GND_7
F11
GND_8
G7
GND_9
G9
GND_10
G11
GND_11
H8
GND_12
H10
GND_13
J7
GND_14
J9
GND_15
K6
GND_16
K8
GND_17
K10
GND_18
L6
GND_19
L8
GND_20
L9
GND_21
L11
GND_22
T1
GND_23
T5
GND_24
T12
GND_25
T16
GND_26
J6
GNDA_PLL1
J5
GNDG_PLL1
J11
GNDA_PLL2
J12
GNDG_PLL2
H6
VCCA_PLL1
H11
VCCA_PLL2
B6
IO2_35
B5
IO2_42
D6
IO2_37
D5
IO2_38
E6
IO2_39
E5
IO2_40
C9231
0.1uF
+3.3V_VCCINT
R9224
22
C9225
0.1uF
L9207
BLM18PG121SN1D
C9210
4.7uF
L9211
BLM18PG121SN1D
XMARK_1.8V
I2C_SCL3
PROIDIOM_RESET
C9
TS_S_OUT_SYNC
8:AL13
TS_S_OUT_CLK
8:AL13
TS_S_OUT_VAL
8:AL13
TS_S_IN_0_VAL
TS_S_IN_0_SYNC
TS_S_IN_0_CLK
TS_S_IN_0_DATA
TS_S_OUT_DATA
8:AL12
R9250
22
I2C_SDA3
I2C_SCL2
I2C_SDA2
R9255
22 OPT
R9254
22 OPT
+3.3V_PROIDIOM
+3.3V_PROIDIOM
C9232
0.1uF
C9233
0.1uF
C9234
0.1uF
C9235
0.1uF
C9236
0.1uF
C9237
0.1uF
C9238
0.1uF
C9239
0.1uF
C9240
0.1uF
C9241
0.1uF
C9242
0.1uF
C9243
0.1uF
R9216
0
R9256
4.7K
R9258
4.7K
R9257
4.7K
R9259
4.7K
R9260
4.7K
C9244
0.1uF
C9245
0.1uF
IC9203
74LVC1G08GW 
3
2
4
1
5
+3.3V_PROIDIOM
IC9204
74LVC1G08GW 
3
2
4
1
5
+3.3V_PROIDIOM
C9250
0.1uF
C9251
0.1uF
R9262
0
R9264
0
R9273
0
OPT
R9217
0
R9218
0
R9219
0
R9220
0
R9261
0
OPT
R9270
0
C9222
1uF
10V
R9272
0
R9251
22
R9252
22
R9253
22
R9266
22
R9271
22
IC9200-*1
APX809-26SAG-7 
DIODES_PI_NEW
1
GND
3
VCC
2
RESET
LG1001    Use XMARK
LGDT1129  Not use XMARK
      27MHz(200ppm)
Power
XMARK_1.8V
RESET
Pro:Idiom (XMARK)
     I2C : 0x47
Close to IC
SOC -> PI Serial
To SOC
From SOC
2011.02.09
xxLT760H-UA
92
Pro:Idiom
Cap close to IC
Cap close to IC
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