LG 32LK310 / 32LK310Y / 32LK310Z / 32LK311 / 32LK312 / 32LK313 (CHASSIS:LP91J) 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.
+5V_HDMI_2
HPD_MST_2
TMDS2_RX2-
CEC
TMDS2_RXC-
TMDS2_RXC-
TMDS2_RXC+
TMDS1_RXC-
TMDS2_RX0+
+5V_HDMI_2
HPD_MST_1
CEC
TMDS1_RX2+
TMDS2_RX1+
+5V_MULTI
+5V_HDMI_1
TMDS2_RX0-
TMDS1_RX1-
TMDS2_RX1-
TMDS1_RX2-
+5V_MULTI
+5V_HDMI_1
TMDS1_RX0-
TMDS1_RX1+
TMDS1_RX0+
TMDS2_RX2+
TMDS1_RXC+
DDC_SDA2
DDC_SCL2
DDC_SDA1
DDC_SCL1
JP301
JP300
JP302
JP303
Q301
2SC3875S
RT1C3904-T112
E
B
C
Q300
2SC3875S
RT1C3904-T112
E
B
C
D300
KDS184S
KDS184S
A
1
C
A
2
D301
KDS184S
KDS184S
A
1
C
A
2
IC301
CAT24C02WI-GT3
HDMI2_EEPROM_CATAL
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
IC300
CAT24C02WI-GT3
HDMI1_EEPROM_CATAL
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
DDC_WP
DDC_WP
BSS83
Q303
READY
S
B
D
G
CEC
+3.3V_MST
CEC_C
D304
30V READY
CDS3C30GTH
D303
30V
MMBD301LT1G
READY
R301
10K
R303
1K
R300
10K
R302
1K
R315
68K
READY
R313
0
R305
100
R304
100
C301
0.01uF
0.01uF
R331
100
R306
100
R307
100
C302
0.01uF
0.01uF
R327
100
R308
10K
R310
10K
R309
10K
R311
10K
R316
56K
READY
JK302
YKF45-7058V
14
NC
13
CEC
5 DATA1_SHIELD
20
SHIELD
12
CLK-
11
CLK_SHIELD
2 DATA2_SHIELD
19
HPD
18
+5V_POWER
10 CLK+
4 DATA1+
1 DATA2+
17
DDC/CEC_GND
9 DATA0-
8 DATA0_SHIELD
3 DATA2-
16
SDA
7 DATA0+
6 DATA1-
15
SCL
JK301
YKF45-7058V
14
NC
13
CEC
5
DATA1_SHIELD
20
SHIELD
12
CLK-
11
CLK_SHIELD
2
DATA2_SHIELD
19
HPD
18
+5V_POWER
10
CLK+
4
DATA1+
1
DATA2+
17
DDC/CEC_GND
9
DATA0-
8
DATA0_SHIELD
3
DATA2-
16
SDA
7
DATA0+
6
DATA1-
15
SCL
R319
10K
10K
+5V_HDMI_3
+5V_MULTI
TMDS3_RX1-
DDC_SCL3
HPD_MST_3
Q302
2SC3875S
RT1C3904-T112
E
B
C
TMDS3_RX0+
+5V_HDMI_3
R312
10K
DDC_WP
R318
100
TMDS3_RXC+
JK303
KJA-ET-0-0032
14
NC
13
CEC
5
DATA1_SHIELD
20
JACK_GND
12
CLK-
11
CLK_SHIELD
2
DATA2_SHIELD
19
HPD
18
+5V_POWER
10
CLK+
4
DATA1+
1
DATA2+
17
DDC/CEC_GND
9
DATA0-
8
DATA0_SHIELD
3
DATA2-
16
SDA
7
DATA0+
6
DATA1-
15
SCL
JP305
TMDS3_RXC-
DDC_SDA3
R320
10K
10K
R314
1K
TMDS3_RX1+
CEC
TMDS3_RX2+
R317
100
JP304
C300
0.01uF
25V
0.01uF
25V
TMDS3_RX2-
R329
100
IC302
CAT24C02WI-GT3
HDMI3_EEPROM_CATAL
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
D302
KDS184S
A
1
C
A
2
TMDS3_RX0-
IC301-*1
R1EX24002ASAS0A
HDMI2_EEPROM_RENESAS
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
IC300-*1
R1EX24002ASAS0A
HDMI1_EEPROM_RENESAS
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
IC302-*1
R1EX24002ASAS0A
HDMI3_EEPROM_RENESAS
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
HDMI
3 9
OPTION
SW_HPD : USE SW HPD (Default)
MST_HPD : USE MST HPD
LP91J
LK310
2010/11/22
EAX64045802
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.
TXCE1-
TXCE1+
TXCE0-
TXCE0+
TXCE3+
TXCE3-
TXCLKE-
TXCLKE+
TXCE2-
TXCE2+
TXCE0+
TXCE0-
TXCE1+
TXCE1-
TXCE2+
TXCE2-
TXCLKE+
TXCLKE-
TXCE3+
TXCE3-
TXCO3-
TXCO3+
TXCLKO-
TXCLKO+
TXCO2-
TXCO2+
TXCE2+
TXCE2-
TXCLKE+
TXCLKE-
TXCE3+
TXCE3-
TXCO1-
TXCO1+
TXCE1+
TXCE1-
TXCO0-
TXCO0+
TXCE0+
TXCE0-
TXCE4+
TXCE4-
TXCO4+
TXCO4-
C402
47pF
50V
47pF
50V
READY
R413
22
IR-OUT
C400
470pF
50V
NON_19_22INCH
KEY1
ZD400
5.6B
5.6B
FHD BRIDING
L405
120ohm
NON_19_22INCH
ZD401
5.6B
FHD BRIDING
+3.5V_MST
ZD402
5.6B
5.6B
L401
FHD BRIDING
500-ohm
IR_OUT
R412
10K
10K
IR-OUT
Q401
2SC3052
IR-OUT
E
B
C
L400
FHD BRIDING
500-ohm
SUB_SCL
L403
120ohm
KEY2
Q403
2SC3052
IR-OUT
E
B
C
+3.5V_MST
IR
SUB_SDA
C407
0.1uF
0.1uF
26_32INCH
+3.3V_MST
+3.5V_MST
C408
0.1uF
26_32INCH
L404
120ohm
NON_19_22INCH
+3.3V_MULTI_MST
C406
0.1uF
50V
0.1uF
50V
READY
C404
47uF
16V
47uF
16V
KEY2
C410
100pF
50V
19_22INCH
KEY1
C409
100pF
50V
19_22INCH
+5V_+12V_LCD
TXCE0+,TXCE0-,TXCE1+,TXCE1-,TXCE2+,TXCE2-,TXCE3+,TXCE3-,TXCE4+,TXCE4-,TXCLKE+,TXCLKE-
+3.3V_MULTI_MST
OPC_EN
E-DIM
OPC_OUT
C405
100pF
50V
100pF
50V
C401
100pF
50V
100pF
50V
L408
19_22INCH
L409
19_22INCH
L407
120ohm
L402
120ohm
R406
4.7K
4.7K
R409
4.7K
4.7K
R407
10K
10K
IR-OUT
R410
10K
IR-OUT
R401
47K
IR-OUT
R420
4.7K
4.7K
VESA
R421
0
JEIDA
R423
0
READY
R416
0
OPC_ENABLE
R422
470
470
OPC_ENABLE
L406
120-ohm
P402
FF10001-30
26_32INCH_HD_WAFER
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
+3.5V_MST
Q404
RT1C3904-T112
OPC_ENABLE
E
B
C
R424
1K
OPC_ENABLE
R400
10K
Q400
2SC3052
E
B
C
+3.3V_MULTI_MST
R405
10K
R403
10K
Q402
2SC3052
E
B
C
+3.5V_MST
R408
10K
R411
4.7K
4.7K
R404
0
READY
R402
0
READY
C403
470pF
50V
470pF
50V
NON_19_22INCH
SUB_SCL
LED_R
P404
12507WR-03L
19_22INCH
1
KEY1
2
KEY2
3
GND
4
P403
FF10001-30
19_22INCH
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
+5V_+12V_LCD
TXCE0+,TXCE0-,TXCE1+,TXCE1-,TXCE2+,TXCE2-,TXCE3+,TXCE3-,TXCE4+,TXCE4-,TXCLKE+,TXCLKE-
SMALL_NC2
SMALL_NC1
SMALL_OPC_OUT
SMALL_NC3
SMALL_OPC_EN
SMALL_NC4
R414
0
HD_NOT AUO_IPS
R418
0
OPC_ENABLE
R419
0
LVDS_SEL
R415
0
HD_normal
SMALL_OPC_EN
SMALL_NC3
SMALL_NC4
SMALL_NC1
SMALL_OPC_OUT
SMALL_NC2
P400
12507WR-12L
1
SCL
2
SDA
3
GND
4
KEY1
5
KEY2
6
5V_ST
7
GND
8
LED_B/LG_LOGO
9
IR
10
GND
11
ST_3.3V
12
LED_R/BUZZ
13
.
SMALL_NC5
SMALL_NC5
P401
TF05-51S
51P_FFC_WAFER_FHD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
TXCE0+,TXCE0-,TXCE1+,TXCE1-,TXCE2+,TXCE2-,TXCE3+,TXCE3-,TXCE4+,TXCE4-,TXCLKE+,TXCLKE-,TXCLKO+,TXCLKO-,TXCO0+,TXCO0-,TXCO1+,TXCO1-,TXCO2+,TXCO2-,TXCO3+,TXCO3-,TXCO4+,TXCO4-
+5V_+12V_LCD
R431
0
SHARP 42FHD
R432
0
NON_Small CMO
R425
0
HD_normal
R429
0
AUO/SHARP 42FHD
R428
0
AUO/SHARP 42FHD
R427
0
AUO/SHARP 42FHD
R426
0
AUO/SHARP 42FHD
+3.3V_MULTI_MST
R433
4.7K
READY
R434
0
NON CMO FHD
R435
0
NON CMO 42FHD
R436
0
NON CMO 42FHD
R437
0
NON CMO 42FHD
R438
0
NON CMO 42FHD
R417
0
OPC_ENABLE
R439
0
READY
R440
4.7K
READY
R441
0
READY
+3.3V_MULTI_MST
R442
4.7K
SHARP 42FHD
R443
0
AUO FHD
+3.3V_MULTI_MST
R444
0
NON AUO 42FHD
LVDS,CTR KEY
4 9
CONTROL KEY
OPC_EABLE
OPC_OUTPUT
External VBR
PANEL WAFER
IR
**OPC_ENABLE : USE LGD Module
FHD
26inch AUO : OPEN
26inch SHARP : Pull down
51
47
46
45
44
43
42
41
28
SHARP 32INCH FHD
R444 R431 R442
R443 R421
R420 R416 R417 R418
R423
R438 R429
O
X
X
X
X
X
X
O
R428
27
26
R437
R434
25
R433 R427
12
R426
11
10
R436
9
R435
O
R434
O
O
VESA
IPS 32INCH FHD
O
X
X
X
VESA
X
X
X
O
X
X
O
R434
X
X
O
O
SHARP 32INCH FHD
O
O
O
O
LP91J
LK310
2010/11/22
EAX64045802
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.
MAIN_SIF
0.01uF
C501
50V
M_SDA
C502
27pF
27pF
50V
+5V_TUNER
TV_MAIN
M_SCL
+5V_TUNER
C504
50V
50V
READY
C500
27pF
50V
L502
READY
10uH
C507
82pF
50V
82pF
50V
READY
C508
10uF
16V
10uF
16V
L500
120-ohm
READY
Q502
ISA1530AC1
E
B
C
R502
4.7K
4.7K
R506
220
R507
220
C505
100uF
16V
100uF
16V
READY
C506
100uF
16V
100uF
16V
READY
R505
47
R504
47
C503
0.1uF
50V
0.1uF
50V
R500
0
R501
0
TU500
TAFJ-Z001D
TAFJ-Z001D
PAL_TUNER
5
MOPLL_AS
11
VIDEO
2
NC_2
10
NC_4
4
RF_AGC
1
NC_1
9
SIF
8
NC_3
3
+B[5V]
7
SDA
6
SCL
12
GND
13
SHIELD
TU500-*1
TAFJ-H001F
5
MOPLL_AS
11
VIDEO
2
NC_2
10
NC_4
4
RF_AGC
1
NC_1
9
SIF
8
NC_3
3
+B[5V]
7
SDA
6
SCL
12
GND
13
SHIELD
TUNER
5 9
Near the pin
LP91J
LK310
2010/11/22
EAX64045802
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.
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.
C644
0.1uF
C637
0.1uF
M_SDA
C606
1000pF
C616
22000pF
C623 22000pF
+1.8V_DVDD
C651
1000pF
50V
C632
0.47uF
MULTI_PW_SW
C605
0.1uF
+1.8V_DVDD
C615
0.1uF
50V
0.1uF
50V
C629
0.1uF
+3.3V_MULTI_MST
C643
0.1uF
C617
0.1uF
50V
0.1uF
50V
C602
0.1uF
C647
0.01uF
SPK_R+
M_SCL
C610
0.1uF
C611
22000pF
SPK_L+
+1.8V_AVDD
SPK_L-
C669
0.1uF
+16V_NTP
+16V_NTP
SPK_R-
C601
100pF
C625
22000pF
+1.8V_AVDD
C672
0.01uF
C648
0.01uF
C603
1000pF
SW_RESET
C673
0.47uF
C671
0.01uF
C626
0.1uF
0.1uF
C613
0.01uF
50V
0.01uF
50V
SPK_L-
SPK_R+
+1.8V_DVDD
SPK_R-
SPK_L+
+1.8V_AVDD
+1.8V
I2S_MCLK
I2S_SDO
I2S_WS
I2S_SCK
C619
390pF
C621
390pF
C630
390pF
C634
390pF
390pF
C608
1uF
C618
1uF
C624
1uF
C614
1uF
C607
0.1uF
50V
C642
10uF
10uF
35V
C600
10uF
16V
C604
10uF
16V
C609
10uF 16V
R604
3.3
R608
12
R611
12
R610
12
R638
12
R663
4.7K
R623
4.7K
R626
3.3
R625
3.3
R601 100
R600
3.3K
R676
100
R677
100
R678
100
R602
100
100
R603
100
100
R658
12
R653
12
R621
12
12
R654
12
R628
4.7K
R667
4.7K
R671
3.3
R635
3.3
L605
MLB-201209-0120P-N2
0LCML00003B
0LCML00003B
120-ohm
L606
MLB-201209-0120P-N2
0LCML00003B
120-ohm
C638
33pF
50V
READY
C639
33pF
50V
READY
33pF
50V
READY
+3.3V_MST
R630
10K
Q603
RT1C3904-T112
E
B
C
R629
10K
MULTI_PW_SW
R627
0
READY
R624
0
READY
L608
MLB-201209-0120P-N2
L609
MLB-201209-0120P-N2
L610
MLB-201209-0120P-N2
L611
MLB-201209-0120P-N2
C612
68uF
35V
68uF
35V
C640
68uF
35V
68uF
35V
L607
AD-9060
EAP61008401
2S
1S
1F
2F
L603
AD-9060
EAP61008401
2S
1S
1F
2F
P600
SMAW250-H04R
1
2
3
4
R631
47K
READY
R673
0
IC600
NTP-3200L
NTP-3200L
1
BST1A
2
VDR1A
3
RESET
4
AD
5
DVSS_1
6
VSS_IO
7
CLK_I
8
VDD_IO
9
DGND_PLL
10
AGND_PLL
11
LF
12
AVDD_PLL
13
DVDD_PLL
14
TEST0/GND
15
DVSS_2
16
DVDD
17
SDATA
18
WCK
19
BCK
20
SDA
21
SCL
22
MONITOR_0
23
MONITOR_1
24
MONITOR_2
25
FAULT
26
VDR2B
27
BST2B
28
PGND2B_1
29
PGND2B_2
30
OUT2B_1
31
OUT2B_2
32
PVDD2B_1
33
PVDD2B_2
34
PVDD2A_1
35
PVDD2A_2
36
OUT2A_1
37
OUT2A_2
38
PGND2A_1
39
PGND2A_2
40
BST2A
41
VDR2A
42
NC
43
VDR1B
44
BST1B
45
PGND1B_1
46
PGND1B_2
47
OUT1B_1
48
OUT1B_2
49
PVDD1B_1
50
PVDD1B_2
51
PVDD1A_1
52
PVDD1A_2
53
OUT1A_1
54
OUT1A_2
55
PGND1A_1
56
PGND1A_2
57
[EP]GND
R605
4.7K
4.7K
R617
1K
MNT_LOUT
+12V_AUDIO
R614
10K
R616
4.7K
4.7K
C635
33pF
50V
50V
C633
6800pF
50V
6800pF
50V
R606
1K
R615
6.8K
6.8K
C627
33pF
50V
50V
C628
0.01uF
50V
0.01uF
50V
Q601
RT1C3904-T112
E
B
C
R613
5.6K
C622
6800pF
50V
6800pF
50V
+12V_AUDIO
MNT_ROUT
MNT_L_AMP
C631
0.1uF
16V
0.1uF
16V
R609
6.8K
6.8K
C620
0.1uF
16V
0.1uF
16V
Q602
RT1C3904-T112
E
B
C
MNT_R_AMP
R607
10K
+12V_AUDIO
R612
5.6K
IC601
S324
AUDIO_OUT_OP AMP_AUK
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
IC601-*1
AS324MTR-E1
AUDIO_OUT_OP AMP_BCD
3
IN1+
2
IN1-
4
VCC
1
OUT1
6
IN2-
5
IN2+
7
OUT2
8
OUT3
9
IN3-
10
IN3+
11
GND
12
IN4+
13
IN4-
14
OUT4
AUDIO
6 9
Main AMP
AMP :GAIN X 4
AUDIO_OUT OPTION BLOCK
LP91J
LK310
2010/11/22
EAX64045802
Click on the first or last page to see other 32LK310 / 32LK310Y / 32LK310Z / 32LK311 / 32LK312 / 32LK313 (CHASSIS:LP91J) service manuals if exist.