LG 19LS3300 (CHASSIS:LP24A) Service Manual ▷ View online
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A2
A21
A31
A10
* Set + Stand
900
200
400
540
521
820
910
120
300
510
310
LV
1
410
EXPLODED VIEW
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These
parts are identified by in the Schematic Diagram and EXPLODED VIEW.
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
IMPORTANT SAFETY NOTICE
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.
INPUT1
R115
10K
Q102
RT1C3904-T112
DEBUG
E
B
C
Q105
RT1C3904-T112
E
B
C
C104
5600pF
50V
5600pF
50V
R120
12K
12K
JP108
R112
220K
220K
COMMON_RIN
MUTE_AOUT
R119
12K
MUTE_AOUT
R107
75
R116
10K
R111
220K
220K
COMP_PR
ZD106
30V
D105
30V
30V
ZD107
30V
Q104
RT1C3904-T112
E
B
C
MNT_ROUT
C103
5600pF
50V
5600pF
50V
MNT_LOUT
R124
1K
COMMON_LIN
R109
75
ZD101
SD05
R106
47
DEBUG
COMP_PB
COMMON_VIN
P_12V
Q103
RT1C3904-T112
E
B
C
MNT_VOUT
Q106
RT1C3904-T112
E
B
C
ZD102
SD05
R108
75
ZD100
SD05
D104
30V
R123
1K
C101
10uF
16V
C102
10uF
16V
C105
560pF
50V
READY
C106
560pF
50V
READY
R103
220
DEBUG
R101
75
DEBUG
JK101
PPJ243-01
5C
[GN]C-SPRING
6C
[GN]E-LUG
4C
[GN]CONTACT
5D
[BL]C-SPRING
7E
[RD2]E-LUG-S
5E
[RD2]C-SPRING
5F
[WH2]C-SPRING
4G
[RD3]CONTACT
5G
[RD3]C-SPRING
6G
[RD3]E-LUG
6A
[WH1]E-LUG
5A
[WH1]C-SPRING
4B
[RD1]CONTACT
5B
[RD1]C-SPRING
6B
[RD1]E-LUG
Q103-*1
2N3904S
For China
E
B
C
Q105-*1
2N3904S
For China
E
B
C
Q104-*1
2N3904S
For China
E
B
C
Q106-*1
2N3904S
For China
E
B
C
Q102-*1
2N3904S
For China
E
B
C
1 8
INPUT1
COMPONENT / AV IN / AV AUDIO OUT
2012/03/02
32CS410
LP24B
EAX64671103
POP NOISE
POP NOISE
V-OUT Buffer(DEBUG)
U
S
B
D
O
W
N
S
T
R
E
A
M
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.
INPUT2
DSUB_SDA
DSUB_SCL
JK201
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
ZD210
30V
30V
C210
33pF
READY
ZD211
30V
C211
33pF
READY
HDMI_D1-
CEC
HPD
DDC_SDA
R234
100
100
HDMI_D0+
HDMI_CK+
HDMI_D0-
HDMI_D0-
R230
10K
R231
1K
HDMI_CK-
HDMI_D2+
DDC_SCL
Q230
2SC3875S
MMBT3904(NXP)
E
B
C
HDMI_D1+
D230
KDS184S
KDS184S
A
1
C
A
2
R232
10K
CEC_C
R233
10K
HDMI_D2-
JK203
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
L221
120OHM
READY
C223
10uF
16V
10uF
16V
READY
JK202
3AU04S-305-ZC-(LG)
1
2
3
4
5
C222
0.1uF
50V
0.1uF
50V
READY
R222
510
READY
R221
1K
READY
+5V_USB
ZD221
30V
READY
D220
READY
A
AC
C
ZD220
30V
READY
IC202
AP2191SG-13
READY
3
IN_2
2
IN_1
4
EN
1
GND
5
FLG
6
OUT_1
7
OUT_2
8
NC
USB_DP
USB_DN
+3.3V_M
R220
0
R223
4.7K
4.7K
READY
L220
120-ohm
5V_TUNER
R237
10K
R235
4.7K
HDMI_5V_DET
R236
10K
R238
0
READY
HDMI_ARC
CEC
C220
10uF
10V
10uF
10V
C221
100uF
16V
100uF
16V
2 8
INPUT2
2012/03/02
32CS410
LP24B
EAX64671103
I2C Control
Close to SIDE_USB
USB(SIDE)
HDMI(REAR)
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.
AUDIO
R357
6.8K
6.8K
MNT_ROUT
Q351
MMBT3904(NXP)
E
B
C
C353
0.01uF
50V
0.01uF
50V
R353
6.8K
6.8K
R358
1K
C356
6800pF
50V
6800pF
50V
P_12V
MNT_R_AMP
R351
1K
MNT_L_AMP
R356
10K
C352
33pF 50V
IC302
AS324MTR-E1
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
R354
5.6K
Q350
MMBT3904(NXP)
E
B
C
P_12V
C351
6800pF
50V
6800pF
50V
R359
4.7K
P_12V
R350
4.7K
4.7K
C350
0.1uF
16V
0.1uF
16V
C354
33pF 50V
MNT_LOUT
C355
0.1uF
16V
0.1uF
16V
R352
10K
R355
5.6K
SPK_L+
SPK_R-
JP301
JP302
SPK_L-
JP304
SPK_R+
P301
SMAW250-H04R
1
.
2
3
4
JP303
C302
10uF
10V
OPT
0.1uF
C316
50V
SPK_R+
C321
390pF
50V
R327
12
R326
12
R324
12
L304
10.0uH
10.0uH
C322
390pF
50V
R306
10K
C306
0.1uF
16V
R318
12
C309
1uF
25V
1uF
25V
L305
10.0uH
10.0uH
C301
100pF
50V
R312
100
D303
100V
1N4148W
OPT
C323
1uF
25V
25V
SPK_L-
R315
100
C327
0.47uF
50V
D302
100V
1N4148W
OPT
0.1uF
C311
16V
R330
4.7K
R340
10K
I2S_WS
C326
22000pF
50V
22000pF
50V
C312
22000pF
50V
L306
10.0uH
10.0uH
+3.3V_M
0.1uF
C308
16V
R321
4.7K
C325
1uF
25V
1uF
25V
SOUND_VCC
0.1uF
C336
50V
C313
33pF
50V
33pF
50V
C303
4.7uF
16V
SOUND_VCC
D304
100V
1N4148W
OPT
I2S_MCLK
C314
33pF
50V
33pF
50V
I2S_SDO
I2S_SCK
R307
3.3K
AUAMP_SDA
0.1uF
C330
50V
C342
390pF
50V
R320
4.7K
AUAMP_SCL
C339
0.47uF
50V
R316
12
C324
22000pF
50V
R338
10K
C304
1000pF
50V
R313
100
SPK_R-
C337
390pF
50V
C320
22000pF
22000pF
50V
L303
10.0uH
10.0uH
R319
12
L309
BLM18PG121SN1D
R325
12
C310
10uF
10uF
10V
OPT
IC301
NTP-7500L
1
AGND_PLL
2
AVDD_PLL
3
DVDD_PLL
4
LF
5
DGND_PLL
6
GND_1
7
DGND
8
DVDD
9
SDATA
10
WCK
11
BCK
12
SDA
13
SCL
14
/FAULT
15
MONITOR0
16
MONITOR1
17
MONITOR2
18
BST2B
19
PGND2B
20
OUT2B_1
21
OUT2B_2
22
PVDD2_1
23
PVDD2_2
24
PVDD2_3
25
OUT2A_1
26
OUT2A_2
27
PGND2A
28
BST2A
29
VDR2
30
AGND
31
VCC_5
32
VDR1
33
BST1B
34
PGND1B
35
OUT1B_1
36
OUT1B_2
37
PVDD1_1
38
PVDD1_2
39
PVDD1_3
40
OUT1A_1
41
OUT1A_2
42
PGND1A
43
BST1A
44
/RESET
45
AD
46
GND_IO
47
CLK_I
48
VDD_IO
49
[EP]
R317
12
0.1uF
C333
50V
R331
4.7K
C341
10uF
10V
10uF
10V
HW_RESET
C317
10uF
35V
10uF
35V
0.1uF
C305
16V
OPT
+3.5V_ST
0.1uF
C329
50V
SPK_L+
SW_RESET
Q302
MMBT3904(NXP)
E
B
C
0.1uF
C331
50V
C307
1000pF
50V
D301
100V
1N4148W
OPT
C318
1000pF
50V
C360
10uF
35V
R328
4.7K
4.7K
READY
R329
4.7K
4.7K
READY
+3.3V_M
R361
100
R362
100
R363
100
R360
100
AUDIO
3 8
LP24B
32CS410
2012/03/02
EAX64671103
AUDIO_OUT AMP : GAIN X 4
SPK_R+
SPK_L-
SPK_L+
SPK_R-
SPEAKER_R
SPEAKER_L
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