LG 32LK330 / 32LK331 / 32LK334C (CHASSIS:LJ01U) 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.
22
R1057
+3.5V_ST
+3.5V_ST
OCD1A
TP1001
NEC_ISP_Tx
POWER_ON/OFF2_1
10K
PWM_BUZZ/IIC_LED
R1009
AMP_RESET
SIDE_HP_MUTE
CEC_ON/OFF
4.7M
R1034
CRYSTAL_KDS
0.1uF
C1002
1uF
C1009
KEY2
NEC_ISP_Rx
NEC_EEPROM_SCL
KEY1
FLMD0
22
R1065
SOC_RESET
AMP_RESET
NEC_SDA
22
R1010
MICOM_DEBUG
OCD1A
MODEL1_OPT_2
10K
R1030
22
R1090
OPT
TP1602
0 . 1 u F
C1003
10K
TOUCH_KEY
R1075
22
R1060
NEW_SUB
MODEL1_OPT_2
0 . 1 u F
C1010
10K
R1091
TP1002
OCD1B
+3.5V_ST
S/T_SDA
S7_NEC_RXD
12505WS-12A00
P1001
MICOM_DEBUG_WAFER
1
2
3
4
5
6
7
8
9
10
11
12
13
47K
R1046
22
R1049
OPT
22
R1081
MICOM_DEBUG
NEC_ISP_Tx
NEC_ISP_Rx
TP1003
OCD1A
OCD1B
22
R1080
AT24C16BN-SH-B
IC1001-*1
EEPROM_NEC_16KBIT_ATMEL
3
NC_3
2
NC_2
4
GND
1
NC_1
5
SDA
6
SCL
7
WP
8
VCC
22
R1023
M24C16-WMN6T
IC1001
EEPROM_NEC_16KBIT_STM
3
NC/E2
2
NC/E1
4
VSS
1
NC/E0
5
SDA
6
SCL
7
WC
8
VCC
TP1601
OLP
15pF
C1007
PANEL_CTL
32.768KHz
X1002
CRYSTAL_EPSON
+3.5V_ST
22
R1039
POWER_ON/OFF2_2
22
R1066
CEC_REMOTE_NEC
NEC_ISP_Tx
10K
R1073
OPT
uPD78F0514
IC1002
NEC_MICOM
1
P60/SCL0
2
P61/SDA0
3
P62/EXSCL0
4
P63
5
P33/TI51/TO51/INTP4
6
P75
7
P74
8
P73/KR3
9
P72/KR2
10
P71/KR1
11
P70/KR0
12
P32/INTP3/OCD1B
13
P31/INTP2/OCD1A
14
P30/INTP1
15
P17/TI50/TO50
16
P16/TOH1/INTP5
17
P15/TOH0
18
P14/RXD6
19
P13/TXD6
20
P12/SO10
21
P11/SL10/RXD0
22
P10/SCK10/TXD0
23
AVREF
24
AVSS
25
ANI7/P27
26
ANI6/P26
27
ANI5/P25
28
ANI4/P24
29
ANI3/P23
30
ANI2/P22
31
ANI1/P21
32
P20/ANI0
33
P130
34
P01/TI010/TO00
35
P 0 0 / T I 0 0 0
36
P140/PCL/INTP6
37
P120/INTP0/EXLVI
38
P41
39
P40
40
RESET
41
P124/XT2/EXCLKS
42
P123/XT1
43
FLMD0
44
P122/X2/EXCLK/OCD0B
45
P121/X1/OCD0A
46
REGC
47
VSS
48
VDD
INV_CTL
1/16W
20K
1%
R1089
CEC_ON/OFF
22
R1013
MICOM_DEBUG
0
R1020
10K
B/L_LED
R1071
32.768KHz
CRYSTAL_KDS
X1002-*1
2SC3052
Q1001
E
B
C
+3.5V_ST
22
R1078
MICOM_DEBUG
10K
B/L_LAMP
R1012
OCD1B
47K
R1001
NEC_EEPROM_SCL
22
R1048
+3.5V_ST
22
R1019
4.7K
R4035
NEW_SUB
4.7K
R4034
NEW_SUB
15pF
C1008
10K
R1006
OPT
10K
TACT_KEY
R1011
+3.5V_ST
+3.5V_ST
22
R1076
MICOM_DEBUG
AMP_MUTE
POWER_ON/OFF1
LED_R/BUZZ
LED_B/LG_LOGO
0.1uF
C1006
S7_NEC_TXD
10K
R1052
NEC_SCL
22
R1018
10K
GP3
R1074
MICOM_RESET
FLMD0
1/16W
20K
1%
R1047
22
R1041
22
R1056
22
R1037
NEC_ISP_Rx
S/T_SCL
+3.5V_ST
RL_ON
NEC_EEPROM_SDA
MICOM_RESET
EDID_WP
22
R1055
22
R1043
NEW_SUB
PANEL_CTL
10K
R1005
OPT
10K
R1050
22
R1068
22
R1008
POWER_DET
10K
GP2
R1079
+3.5V_ST
10K
R1072
OPT
22
R1069
10K
PWM_LED
R1004
10K
R1084
OPT
10K
R1083
OPT
IR
22
R1063
10K
R1002
MICOM_DEBUG
NEC_EEPROM_SDA
SCART1_MUTE
GND
22
R1054
19-22_LAMP
2.7K
R1014
2.7K
R1015
+3.5V_ST
⁄
T O P S I D E f o r r e s e t .
EEPROM for Micom
NEC CONFIGURATION
MODEL_OPT_0
MODEL_OPT_3
(MODEL_OPT_3)
MICOM MODEL OPTION
(MODEL_OPT_0)
f o r D e b u g g e r
MODEL_OPT_1
(MODEL_OPT_1)
GP2R
MICOM Rev.4
20101125
5
31
HIGH
31
LOW
S/T & IIC LED & NO BUZZ & LED Blink
3 2 / 3 7 / 4 2 / 4 7 / 5 5 L E 5 3 0 0
PIN NO.
8
HIGH
LOW
HIGH
LOW
HIGH
LOW
LOW
GP3
LOW
P W M _ B U Z Z / I I C _ L E D : F o r m o d e l t h a t u s e L E D L i g h t i n g u s e d I I C
LOW
LOW
LOW
GPIO_LED
TACT_KEY
I I C L E D ( 0 9 Y I I C P r o t o c o l ) & N o B U Z Z
HIGH
Low
LOW
MODEL_OPT_2
IIC LED & PWM BUZZ
LE7300
B/L_LED
HIGH
LOW
NON_GPIO_LED
HIGH : LAMP
LOW
30
PIN NAME
LV25/LV35/LV45/LW45/LV55/LK45/LK55
MODEL OPTION
MODEL OPTION
MODEL_OPT_0
TOUCH_KEY
PWM_BUZZ/IIC_LED
LOW
P W M _ L E D : F o r m o d e l t h a t u s e L E D L i g h t i n g u s e d P W M S i g n a l
LOW
LOW
PWM_BUZZ/IIC_LED :Using IIC for LED Breathing & PWM Buzz
MODEL_OPT_2
MODEL_OPT_0
PWM_LED
MODEL_OPT_3
HIGH
PIN NAME
8
D e s c r i p t i o n
LOW
LD350/450/550
HIGH
LOW : LED
HIGH
11
HIGH
PIN NO.
PWM_BUZZ/IIC_LED
GPIO LED & NO BUZZ
MODEL_OPT_1
TBD
B/L_LED
MODEL_OPT_1
KEY & PWM LED & No Buzz & No LED Blink
LOW
HIGH
HIGH
HIGH
PWM LED & No Buzz & No LED Blink
LK330/LK430/LK530
MODEL_OPT_2
30
MODEL_OPT_1
PWM_LED
TACT_KEY
P W M _ L E D : U s i n g P W M S i g n a l f o r L E D L i g h t i n g
LOW
MODEL_OPT_3
LOW
MODEL_OPT_0
LOW
MODEL_OPT_0
LOW
IIC LED & PWM IIC BUZZ
MODEL_OPT_3
TBD
LK330/LK430 for KR/US
KEY & PWM LED & No Buzz & No LED Blink
MODEL_OPT_3
LOW
HIGH
LOW
LOW
MODEL_OPT_2
LOW
HIGH
11
TOUCH_KEY
10Y EYE-Q Sensor
2010Y,GP2
I I C L E D ( 0 9 Y I I C P r o t o c o l ) & N o B U Z Z
B/L_LAMP
B/L_LAMP
GP2
1 9 / 2 2 / 2 6 L E 5 3 0 0 / 5 3 0 0
S / T & I I C L E D & N o B u z z & L E D B l i n k
2011Y,GP2R, 101125 Update
LD420
MODEL_OPT_1
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.
100
R2402
12507WR-12L
P2401
OLD_SUB
1
2
3
4
5
6
7
8
9
10
11
12
13
12507WR-15L
P2402
NEW_SUB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
16
15
BLM18PG121SN1D
L2404
18pF
50V
50V
OPT
C2409
LED_B/LG_LOGO
47K
R2431
OPT
JP2407
2SC3052
Q2406
OPT
E
B
C
CDS3C05HDMI1
5.6V
5.6V
D902
NEW_SUB
18pF
50V
50V
OPT
C906
1.5K
R2414
BLM18PG121SN1D
L2401
KEY1
+3.3V_Normal
JP2410
10K
R2416
OPT
10K
1%
R2405
NEC_EEPROM_SCL
AMOTECH
5.6V
D2402
100
R2411
EYEQ/TOUCH_KEY
IR
0 . 1 u F
C2401
100
R2412
EYEQ/TOUCH_KEY
S/T_SDA
JP2409
1000pF
50V
C2406
47K
R2425
OPT
+3.5V_ST
2SC3052
Q2405
OPT
E
B
C
0 . 1 u F
16V
C2410
OPT
0 . 1 u F
16V
C2405
100pF
50V
C2407
BLM18PG121SN1D
L2403
10K
1%
R2404
10K
R2430
OPT
1.5K
R2413
JP2408
1000pF
50V
C2404
JP2411
AMOTECH
5.6V
D2401
+3.5V_ST
+3.5V_ST
BLM18PG121SN1D
L2402
47K
R2429
OPT
KEY2
LED_R/BUZZ
CDS3C05HDMI1
5.6V
5.6V
D903
NEW_SUB
18pF
50V
50V
OPT
C907
0
R2427
+3.5V_ST
S/T_SCL
100
R2401
NEC_EEPROM_SDA
+3.5V_ST
18pF
50V
50V
OPT
C2408
0 . 1 u F
C2402
0 . 1 u F
16V
C2403
22
R2428
5.6V
D2403
EYEQ/TOUCH_KEY
5.6V
D2404
EYEQ/TOUCH_KEY
5.6V
D2405
47K
R2426
CONTROL
IR & LED
20101023
6
GP2R
IR/CONTROL-L
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.
0 . 1 u F
C1453
10uF
10V
10V
C1452
USB1_OCD
SIDE_USB_DP
22uF
16V
16V
C1451
1/8W
2K
1%
R1459
CDS3C05HDMI1
5.6V
5.6V
OPT
D1451
+5V_USB
USB1_CTL
1/8W
2K
1%
R1458
4.7K
OPT
R1455
SIDE_USB_DM
MLB-201209-0120P-N2
120-ohm
L1451
CDS3C05HDMI1
5.6V
OPT
D1452
10K
R1454
+3.3V_Normal
47
R1451
CIS21J121
L1451-*1
USB DOWN STREAM
3AU04S-305-ZC-(LG)
JK1450
1
2
3
4
5
AP2191DSG
EAN61849601
IC1450
3
IN_2
2
IN_1
4
EN
1
GND
5
FLG
6
OUT_1
7
OUT_2
8
NC
SIGN6409
$ 0 . 0 7 7
USB_DIODES
20101023
GP2R
USB_OCP_DIODE
7
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.
HDMI_CEC
D2+_HDMI1
DDC_SDA_4
AT24C02BN-SH-T
IC802
HDMI_2_ATMEL
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
D1+_HDMI2
0 . 1 u F
C806
DDC_SDA_1
D804
D801
OPT
DDC_SDA_4
2SC3052
Q802
E
B
C
68K
R853
D1+_HDMI4
DDC_SCL_4
5V_DET_HDMI_1
GND
0 . 1 u F
C807
EDID_WP
D825
ENKMC2838-T112
D824
D824
A1
C
A2
+5V_Normal
DDC_SCL_2
CK-_HDMI2
5V_DET_HDMI_4
D1-_HDMI1
+5V_Normal
5V_HDMI_4
10K
R862
10K
R830
CEC_REMOTE_S7
ENKMC2838-T112
D822
D822
A1
C
A2
1K
R895
5V_HDMI_2
DDC_SCL_1
HPD2
+3.5V_ST
2SC3052
Q803
E
B
C
10K
R828
10K
R874
AVRL161A1R1NT
D826
OPT
D0-_HDMI1
J P 8 0 5
+5V_Normal
0 . 1 u F
16V
16V
C803
D1+_HDMI1
CK+_HDMI1
3.3K
R801
CK+_HDMI2
1.8K
R803
D2-_HDMI4
EDID_WP
D2-_HDMI1
D811
OPT
0
OPT
R855
D1-_HDMI4
5V_HDMI_4
+3.3V_Normal
CEC_ON/OFF
DDC_SDA_2
AT24C02BN-SH-T
IC801
HDMI_1_ATMEL
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
10K
R856
22
R882
0 . 1 u F
16V
16V
C802
1.8K
R837
EAG59023302
JK802
HDMI_1
14
13
5
D1_GND
20
SHIELD
12
11
2
D2_GND
19
18
10
CK+
4
D1+
1
D2+
17
9
D0-
8
D0_GND
3
D2-
16
7
D0+
6
D1-
15
HDMI_CEC
22
R881
D802
OPT
GND
DDC_SCL_2
BSS83
Q805
S
B
D
G
CEC_REMOTE_NEC
DDC_SCL_4
GND
HDMI_CEC
CK+_HDMI4
J P 8 0 6
68K
R854
22
R875
3.3K
R835
HPD1
HPD4
D0+_HDMI1
22
R878
HDMI_CEC
D0+_HDMI2
1.8K
R804
1K
R897
0 . 1 u F
16V
16V
C810
0 . 1 u F
16V
16V
C801
D0+_HDMI4
AVRL161A1R1NT
OPT
D803
5V_HDMI_1
BSS83
Q806
S
B
D
G
22
R876
0 . 1 u F
16V
16V
C805
DDC_SDA_1
10K
R893
AT24C02BN-SH-T
IC804
HDMI_SIDE_ATMEL
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
EAG59023302
JK801
HDMI_2
14
13
5
D1_GND
20
SHIELD
12
11
2
D2_GND
19
18
10
CK+
4
D1+
1
D2+
17
9
D0-
8
D0_GND
3
D2-
16
7
D0+
6
D1-
15
D1-_HDMI2
GND
CK-_HDMI1
EDID_WP
22
R877
D2+_HDMI2
ENKMC2838-T112
D821
D821
A1
C
A2
D0-_HDMI4
1K
R896
D2+_HDMI4
3.3K
R802
DDC_SCL_1
0
OPT
R883
10K
R873
10K
R871
0 . 1 u F
C809
D2-_HDMI2
68K
OPT
OPT
R857
5V_DET_HDMI_2
5V_HDMI_1
DDC_SDA_2
D0-_HDMI2
68K
R892
CK-_HDMI4
2SC3052
Q801
E
B
C
5V_HDMI_2
EAG62611201
JK803
HDMI_SIDE
14
13
5
D1_GND
20
BODY_SHIELD
12
11
2
D2_GND
19
18
10
CK+
4
D1+
1
D2+
17
9
D0-
8
D0_GND
3
D2-
16
7
D0+
6
D1-
15
0
R824
0
R841
0
R815
J P 8 1 2
J P 8 1 0
R1EX24002ASAS0A
IC801-*1
HDMI_1_RENESAS
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
R1EX24002ASAS0A
IC802-*1
HDMI_2_RENESAS
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
R1EX24002ASAS0A
IC804-*1
HDMI_SIDE_RENESAS
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
2.7K
R885
2.7K
R889
2.7K
R888
2.7K
R884
2.7K
R887
2.7K
R891
For CEC
HDMI EEPROM
HDMI_1
$0.055
SIDE_HDMI
$0.055
$0.055
HDMI_2
20101023
GP2R
HDMI
8
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