LG 22LK230-MA (CHASSIS:LP92R) Service Manual ▷ View 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.
B_TX0+
TXCLK-
B_TX0-
G_TX1-
R_TX2+
HPDCTL
G_TX1+
HDMI_5V_DET
HDMI_SCL
R_TX2-
Q301
2SC3052
E
B
C
TXCLK+
HDMI_SDA
R323
10K
R301
10K
10K
READY
R313
10K
R321
10K
R320
4.7K
R302
1K
R311
5.6
R308
5.6
R309
5.6
R305
5.6
R310
5.6
R307
5.6
R306
5.6
R312
5.6
JK301
YKF45-7058V
14
13
5
20
SHIELD
12
11
2
19
18
10
4
1
17
9
8
3
16
7
6
15
D304
30V
D303
30V
30V
DSUB_SCL
DSUB_SDA
JK302
SPG09-DB-010
6630TGA004Q
RED
1
GREEN
2
BLUE
3
GND_1
4
DDC_GND
5
RED_GND
6
GREEN_GND
7
BLUE_GND
8
NC
9
SYNC_GND
10
GND_2
11
DDC_DATA
12
H_SYNC
13
V_SYNC
14
DDC_CLOCK
15
SHILED
16
HD_5V
5V_M
R329
4.7K
4.7K
C302
0.1uF
50V
50V
R331
4.7K
4.7K
D302
ENKMC2838-T112
A1
C
A2
HD_5V
R303
10
R304
10
C304
33pF
READY
C303
33pF
READY
C305
33pF
READY
C306
33pF
READY
HDMI
HDMI
HDMI/RGB
EAX64207701
2011/5/6
3 7
I2C Control
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.
TUNER_SDA
TUNER_SCL
5V_TUNER
0.01uF
C401
50V
PRE-AMP
0.01uF
C409
50V
PRE-AMP
0.01uF
C414
50V
VIF2
VIF1
SIF2
SIF1
TU_AGC
D401
30V
R411
680
PRE-AMP
0.01uF
C404
50V
C413
0.1uF
0.1uF
16V
ONLY_MA
C417
0.1uF
0.1uF
16V
ONLY_MA
R418
100
R423
12K
C411
47pF
47pF
50V
C412
47pF
50V
47pF
50V
R415
47
R414
47
C410
0.1uF
16V
0.1uF
16V
READY
C407
10uF
10V
10uF
10V
L403
K7257M
ONLY_TA
2
SWITCHING_INPUT
1
INPUT
5
OUTPUT2
4
OUTPUT1
3
CHIP_CARRIER
L404
2.2uH
2.2uH
READY
L401
PRE-AMP
820nH
R432
4.7K
4.7K
R433
4.7K
4.7K
5V_M
5V_M
L402-*1
M9370M
ONLY_MA
2
INPUT-GND
1
INPUT
5 OUTPUT_2
4 OUTPUT_1
3 CHIP_CARRIER-GND
L403-*1
M3953M
ONLY_MA
2
INPUT-GND
1
INPUT
5 OUTPUT_2
4
OUTPUT_1
3
CHIP_CARRIER-GND
Q401
BFS17W
PRE-AMP
E
B
C
R404
0
PRE-AMP(TA)
R412
22
PRE-AMP
R427
22
READY
C755
22pF
50V
22pF
50V
READY
R444
0
READY
R445
0
READY
L402
K9362M
ONLY_TA(NO_SW)
2
INPUT-GND
1
INPUT
5 OUTPUT2
4 OUTPUT1
3
CHIP_CARRIER-GND
R417
10K
TU_SW_VIF
R429
0
TU_SW_VIF
R424
10K
TU_SW_VIF
5V_M
5V_M
Q403
2SC3875S(ALY)
TU_SW_VIF
E
B
C
TU_CTL_VIF
D403
35V
KDS114E(KEC)
TU_SW_VIF
R425
3.3K
3.3K
TU_SW_VIF
R419
6.8K
6.8K
TU_SW_VIF
5V_M
R420
6.8K
6.8K
TU_SW_VIF
R430
0
NO_SW_VIF
R403
0
No PRE-AMP
5V_M
R409
0
0
PRE-AMP
TU401
TDTK-G701D
TDTK-G701D
ONLY_TA
5
B+[+5V]
11
AIF-
2
NC_2
10
NC_6
4
RF_AGC
1
NC_1
9
NC_5
8
NC_4
3
NC_3
7
SCL
6
SDA
12
SHIELD
TU401-*1
TDTK-H701F
ONLY_MA
5
B+[+5V]
11
DIF[-]/AIF-
2
NC_2
10
NC_6
4
RF_AGC
1
NC_1
9
NC_5
8
NC_4
3
NC_3
7
SCL
6
SDA
12
SHIELD
R410
220
PRE-AMP(TA)
R406
1.5K
1.5K
PRE-AMP
R407
820
820
PRE-AMP
0.01uF
C415
50V
5V_M
R421
6.8K
6.8K
TU_SW_SIF
R422
6.8K
6.8K
TU_SW_SIF
R416
3.3K
3.3K
TU_SW_SIF
R443
10K
TU_SW_SIF
Q402
2SC3875S(ALY)
TU_SW_SIF
E
B
C
R436
10K
TU_SW_SIF
5V_M
TU_CTL_SIF
5V_M
R428
0
TU_SW_SIF
D402
35V
KDS114E(KEC)
TU_SW_SIF
R431
0
NO_SW_SIF
L402-*2
K9653D
ONLY_TA(SW)
2
SWITCHING_INPUT
1
INPUT
5
OUTPUT_2
4
OUTPUT_1
3
INPUT-GND/CHIP_CARRIER_GND
Near the pin
NTSC
PAL(w/o NT)
L403
L402
K7257
K9653
TUNER
EAX64207701
2011/5/6
4 7
TUNER
M3953
Layout placement
Close to Tuner
Close to Mstar IC
Layout placement
PAL-BG,DK,I NTSC-M
High
Low
TU_CTL_VIF
M9370
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.
R537
4.7K
4.7K
C552
6800pF
50V
6800pF
50V
MNT_L_AMP
MNT_LOUT
16.5V_AOUT
R542
5.6K
16.5V_AOUT
MNT_ROUT
C556
33pF
50V
33pF
50V
16.5V_AOUT
R546
6.8K
6.8K
MNT_R_AMP
R538
1K
R547
6.8K
6.8K
R539
1K
C553
33pF
50V
33pF
50V
R543
5.6K
R536
4.7K
4.7K
C555
6800pF
6800pF
50V
C550
0.01uF
50V
0.01uF
50V
C554
0.1uF
50V
0.1uF
50V
C551
0.1uF
50V
0.1uF
50V
R541
12K
R544
12K
C543
0.33uF
0.33uF
50V
C516
0.01uF
0.01uF
R507
33
C514
1000pF
50V
1000pF
50V
READY
C520
0.01uF
0.01uF
C525
0.01uF
0.01uF
R504
3.3
3.3
C501
1000pF
READY
10uF
C512
25V
READY
C504
10uF
10V
10uF
10V
C540
0.33uF
0.33uF
50V
C547
0.047uF
I2S_SCK
C529
1uF
25V
1uF
25V
R526
470
C549
4.7uF
10V
4.7uF
10V
R524
22K
C548
0.047uF
R508
33
AUAMP_SDA
C546
4700pF
C545
4700pF
R516
1K
1K
C521
0.01uF
0.01uF
R510
100
C535
0.033uF
50V
50V
C508
10uF
10V
10uF
10V
C522
0.01uF
0.01uF
C502
33pF
33pF
READY
C518
0.01uF
0.01uF
JP504
JP503
+3.3V_DVDD
C517
0.01uF
0.01uF
C503
33pF
33pF
READY
I2S_MCLK
R511
100
R512
100
SW_RESET
AUAMP_SCL
C539
0.33uF
0.33uF
50V
L501
MLB-201209-0120P-N2
120-ohm
IC501
TAS5709PHPR
1
OUT_A
2
PVDD_A_1
3
PVDD_A_2
4
BST_A
5
GVDD_OUT_1
6
SSTIMER
7
OC_ADJ
8
NC
9
AVSS
10
PLL_FLTM
11
PLL_FLTP
12
VR_ANA
13
AVDD
14
TESTOUT
15
MCLK
16
OSC_RES
17
DVSS_1
18
VR_DIG
19
PDN
20
LRCLK
21
SCLK
22
SDIN
23
SDA
24
SCL
25
RESET
26
STEST
27
DVDD
28
DVSS_2
29
GND
30
AGND
31
VREG
32
GVDD_OUT_2
33
BST_D
34
PVDD_D_1
35
PVDD_D_2
36
OUT_D
37
PGND_CD_1
38
PGND_CD_2
39
OUT_C
40
PVDD_C_1
41
PVDD_C_2
42
BST_C
43
BST_B
44
PVDD_B_1
45
PVDD_B_2
46
OUT_B
47
PGND_AB_1
48
PGND_AB_2
C532
2200pF
C536
0.033uF
50V
C524
0.01uF
0.01uF
I2S_WS
10uF
C509
25V
JP502
R520
200
200
1%
C523
0.01uF
C544
0.33uF
50V
R523
22K
C526
0.1uF
0.1uF
C538
0.033uF
50V
R519
18K
1%
R506
3.3
3.3
R509
33
C527
0.1uF
0.1uF
R505
3.3
3.3
C537
0.033uF
0.033uF
50V
I2S_SDO
L504
MLB-201209-0120P-N2
120-ohm
R513
100
10uF
C510
25V
READY
+3.3V_DVDD
10uF
C511
25V
R525
470
JP501
C519
0.01uF
0.01uF
R503
3.3
3.3
C531
1uF
25V
1uF
25V
3.3V_M
16.5V_SAMP
16.5V_SAMP
3.3V_M
IC502
SN324
3 INPUT1+
2 INPUT1-
4 VCC
1 OUT1
6 INPUT2-
5 INPUT2+
7 OUT2
8
OUT3
9
INPUT3-
10
INPUT3+
11
GND
12
INPUT4+
13
INPUT4-
14
OUT4
R514
4.7K
4.7K
R515
4.7K
4.7K
3.3V_M
P501
SMAW250-H04R
1
.
2
3
4
C542
0.47uF
0.47uF
50V
C541
0.47uF
0.47uF
50V
Q503
MMBT3904(NXP)
E
B
C
Q502
MMBT3904(NXP)
E
B
C
R502
0
0
L506
AD-9060
15uH
2S
1S
1F
2F
L507
AD-9060
15uH
2S
1S
1F
2F
L508
MLB-201209-0120P-N2
120-ohm
L509
MLB-201209-0120P-N2
120-ohm
L510
MLB-201209-0120P-N2
120-ohm
L511
MLB-201209-0120P-N2
120-ohm
AUDIO
AMP:GAIN X 4
AUDIO
EAX64207701
2011/5/6
5 7
SPK_R-
This parts are Located
on AVSS area.
on AVSS area.
SPK_L+
SPK_L-
SPK_R+
Separate DGND AND AVSS
PULL DOWN
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.
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.
TXCE3+
TXCE3-
TXCLKE+
TXCLKE-
TXCE2+
TXCE2-
TXCE1+
TXCE1-
TXCE0+
TXCE0-
L605
120-ohm
AVDD_AUSDM
CVBS_VIN
B_TX0-
TXCE0+,TXCE0-,TXCE1+,TXCE1-,TXCE2+,TXCE2-,TXCE3+,TXCE3-,TXCLKE+,TXCLKE-
C619 0.047uF
MAIN_SCL
VIF1
AVDD_VIF
SW601
JTP-1127WEM
DEBUG
1
2
4
3
L602
120-ohm
AVDD_VIF
SPI_CZ
5V_M
C608
0.1uF
16V
0.1uF
16V
AVDDP1
3.3V_M
P_16.5V
AVDD_VIF
SPI_CLK
FLASH_WP
HPDCTL
I2S_WS
ST_5V
TXCLK+
C615
0.1uF
0.1uF
16V
CVBS_RIN
ST_3.3V
AVDD_VIF
Q601
ISA1530AC1
3.3V_M
I2S_MCLK
MAIN_SDA
SIF1
TXCLK-
D602
KDS181
C634
4.7uF
AVDDP1
AVDD_MPLL
C607
0.1uF
16V
0.1uF
16V
ST_3.3V
SPI_CZ
CVBS_LIN
G_TX1+
1.2V_VDDC_M8
R611
100
TU_AGC
AVDDP1
C601
47uF
25V
R610
100
R609
150
D603
KDS181
C606
0.1uF
16V
0.1uF
16V
L601
120-ohm
120-ohm
SPI_DO
R622
100
AVDD_ADC
R628
1M
L603
120-ohm
C604
0.1uF
16V
0.1uF
16V
SPI_DI
I2S_SCK
VDDC
L604
120-ohm
G_TX1-
SPI_DI
AVDD_AUSDM
B_TX0+
SPI_CLK
3.3V_M
I2S_SDO
SPI_DO
SIF2
C627
2.2uF
AVDD_MPLL
C628
2.2uF
AVDDP2
C611
4.7uF
10V
10V
AVDD_ADC
AVDD_ADC
HWRESET
VDDC
VIF2
D601
KDS181
AVDDP1
INV_ON
X601
14.31818MHz
C652
0.1uF
C660
0.1uF
C658
0.1uF
C659
0.1uF
C656
0.1uF
C645
0.1uF
C644
0.1uF
C661
0.1uF
C648
0.1uF
C642
0.1uF
READY
C651
0.1uF
C641
0.1uF
C632
0.1uF
R689
1K
R690
1K
READY
R698
1K
R699
1K
READY
R607
100
R681
100
R682
100
R642
200
AVDDP1
AVDDP1
MNT_L_AMP
MNT_R_AMP
R673
22
DSUB_SDA
AVDDP1
PANEL_STATUS
R671
100
IR
AVDDP2
VDDC
KEY2
KEY1
HDMI_SCL
HDMI_SDA
POWER_SW
HWRESET
AVDD_ADC
C620
0.047uF
C610
100pF
50V
100pF
50V
C646
0.1uF
0.1uF
C666
0.1uF
0.1uF
R691
0
READY
C602
0.01uF
50V
0.01uF
50V
0.01uF
C654
50V
0.01uF
C663
50V
0.01uF
C664
50V
R608
10K
R621
100
R624
33K
R672
4.7K
R668
4.7K
R666
4.7K
R604
1K
R603
1K
R612
2K
R613
10K
3.3V_M
LED_POWER
FLASH_WP
TUNER_SDA
TUNER_SCL
R615
22
R616
22
C667
0.1uF
READY
LED_KEY
C665
0.1uF
ST_3.3V
R663
4.7K
ST_3.3V
R633
68
R645
1K
R644
1K
R632
33
MUTE_LINE
100
R661
TU_SW_SIF
C650
10uF
10V
10uF
10V
C643
10uF
10V
10uF
10V
C649
10uF
10V
10uF
10V
C638
10uF
10V
10uF
10V
C614
10uF
10V
10V
C633
10uF
C635
1uF
R665
100
R667
100
C612
27pF
C613
27pF
R684
100
C653
0.01uF
L606
600
R625
5.6K
R648
4.7K
READY
R647
100
READY
R646
22K
R643
22K
C636
0.01uF
C637
0.01uF
R693
4.7K
READY
3.3V_M
R692
4.7K
C655
1uF
10V
IC603
MX25L1606EM2I-12G
3
WP#/AGC
2
SO/SIO1
4
GND
1
CS#
5
SI/SIO0
6
SCLK
7
HOLD#
8
VCC
R_TX2-
R_TX2+
DSUB_SCL
R675
22
R674
4.7K
ST_3.3V
ST_3.3V
MAIN_SDA
MAIN_SCL
C662
0.1uF
16V
AUAMP_SCL
AUAMP_SDA
MUTE_LINE
R685
100
ST_3.3V
SW_RESET
R670
100
A_DIM
R669
100
P_DIM
C631
0.1uF
VDDC
100
R651
READY
100
R649
HDMI_5V_DET
R606
6.8K
TU_CTL_VIF
DDC_CTL
R614
4.7K
4.7K
R617
22
3.3V_M
R655
100
R658
0
READY
R618
22
MAIN_SCL
R653
0
READY
MAIN_SDA
C603
0.1uF
16V
0.1uF
16V
DDC_CTL
R602
4.7K
4.7K
IC601
AT24C64D-SSHM-T
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
IC602
CAT24C08WI-GT3-H-RECV(TV)
3
A2
2
NC_2
4
VSS
1
NC_1
5
SDA
6
SCL
7
WP
8
VCC
PANEL_ON
MNT_VOUT_T
OLP
R687
100
OLP
R696
4.7K
R697
4.7K
3.3V_M
R695
100
R694
100
R626
100
R627
100
R650
100
TU_SW_VIF
R619
100
100
R654
100
R656
R664
100
R660
100
R631
33
R630
33
R601
0
READY
IC604
LGE7873-LF
1
RXA2N
2
RXA2P
3
AVSS_1
4
AVDD_1
5
BIN0
6
GIN0M
7
GIN0
8
SOGIN0
9
RIN0
10
VSYNC0
11
AVDD_ADC
12
CVBS0
13
VCOM0
14
CVBSOUT
15
AVSS_ADC
16
AVDD_2
17
XTAL_OUT
18
XTAL_IN
19
AVSS_2
20
AVSS_3
21
AVDD_3
22
AVDD_VIF_1
23
AVSS_VIF_1
24
VIFIP
25
VIFIM
26
SIFIM
27
SIFIP
28
AVSS_VIF_2
29
VR27
30
AVDD_VIF_2
31
TAGC
32
AVDD_4
33
LINE_IN_0L
34
LINE_IN_0R
35
LINE_IN_1L
36
LINE_IN_1R
37
AUCOM
38
AUVRM
39
AUVRP
40
AUVAG
41
AVSS_4
42
LINE_OUT_0L
43
LINE_OUT_0R
44
VDDC_1
45
GND_1
46
VDD_1
47
GPIOB[12]
48
GPIOB[11]
49
GPIOB[10]
50
GPIOB[9]
51
GPIOB[8]
52
GPIOB[3]
53
GPIOB[2]
54
GPIOB[1]
55
GPIOB[0]
56
VDD_2
57
GND_2
58
PWM3
59
PWM2
60
PWM1
61
PWM0
62
TESTPIN
63
VDD_3
64
ALE
65
RDZ
66
WRZ
67
AD[3]
68
AD[2]
69
AD[1]
70
AD[0]
71
SPI_DO
72
SPI_DI
73
SPI_CZ
74
SPI_CK
75
GPIOD[1]
76
GPIOD[0]
77
VDDC_2
78
VSS_1
79
LVB3N
80
LVB3P
81
LVBCLKN
82
LVBCLKP
83
LVB2N
84
LVB2P
85
LVB1N
86
LVB1P
87
LVB0N
88
LVB0P
89
VDD_4
90
LVA3N
91
LVA3P
92
LVACLKN
93
LVACLKP
94
LVA2N
95
LVA2P
96
LVA1N
97
LVA1P
98
LVA0N
99
LVA0P
100
GND_3
101
AVDD_5
102
DDCA_CLK
103
DDCA_DAT
104
INT
105
IRIN
106
SAR2
107
SAR1
108
SAR0
109
VDD_5
110
DDCD_SCL
111
DDCD_SDA
112
RESET
113
WAKEUP
114
AUSDO
115
AUSCK
116
AUWS
117
AUMCKO
118
VDD_6
119
VSS_2
120
VDDC_3
121
RXACN
122
RXACP
123
RXA0N
124
RXA0P
125
AVDD_6
126
RXA1N
127
RXA1P
128
HOTPLUG
C622
33pF
33pF
READY
C621
33pF
READY
C624
33pF
READY
READY
C623
33pF
READY
READY
C625
33pF
READY
R620
100
C640
4.7uF
10V
4.7uF
10V
TU_CTL_SIF
R659
0
R662
0
R683
0
R676
0
R686
0
EAX64207701
MARIA8 128PIN
SERIAL FLASH 2M
MAIN(MARIA8)
2011/5/6
6 7
EEPROM(A0)
Seperate with IC ground
Close to IC as close as possible
RESET
10k=>6.8k,Park
HDCP EEPROM(A8)
Closed IC
Closed IC
Closed IC
Closed IC
Closed IC
Closed IC
Closed IC
Closed IC
Closed IC
Closed IC
Closed IC
Closed IC
Closed IC
Closed IC
Closed IC
Closed IC
Closed IC
Closed IC
Closed IC
Closed IC
Closed IC
Closed IC
Closed IC
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