Read LG 32LV3400-JA (CHASSIS:LE13B) Service Manual online
THERMAL
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.
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.
POWER
BCM-JAPAN
80 130
10/07/01
+5V_USB
+24V
+24V
L8004
3.6uH
3.6uH
NR8040T3R6N
Q8001
2SC3052
2SC3052
E
B
C
PANEL_CTL
81:A2
+5V_USB
POWER_ON/OFF1
Q8003
2SC3052
2SC3052
E
B
C
C8020
22uF
10V
22uF
10V
+12V
R8003
22K
C8016
100pF
50V
OPT
C8015
1uF
25V
25V
OPT
R8008
22K
C8007
0.1uF
0.1uF
R8012
10K
10K
C8025
0.1uF
16V
0.1uF
16V
L8001
+12V
R8013
10K
C8019
100pF
50V
OPT
PANEL_VCC
R8006
22
22
C8014
1uF
50V
1uF
50V
R8017
6.2K
1%
IC8000
MP8706EN-C247-LF-Z
EAN31346002
3
SW_2
2
SW_1
4
BST
1
IN
5
EN/SYNC
6
FB
7
VCC
8
GND
R8002
10K
10K
OPT
POWER_ON/OFF2_1
C8023
0.1uF
16V
0.1uF
16V
R8016
33K
1%
C8008
0.01uF
25V
POWER_ON/OFF2_1
L8000
CIC21J501NE
12V_PANEL
CIC21J501NE
12V_PANEL
R8045
0
NON_ESD
C8029
22uF
16V
16V
L8006
MLB-201209-0120P-N2
L8011
BLM18PG121SN1D
R8047
3.9K
OPT
C8045
0.1uF
16V
A1.2V
D1.2V
R8040
100K
C8027
0.1uF
0.1uF
+3.5V_ST
R8043
470K
1%
C8036
0.1uF
0.1uF
C8032
0.1uF
0.1uF
L8009
2uH
R8048
910K
1%
C8026
0.1uF
0.1uF
10
R8041
R8042
0
0
C8035
22uF
22uF
D1.8V
L8012
3.6uH
3.6uH
NR8040T3R6N
R8052
10K
0.1uF
C8050
R8051
6.8K
C8042
0.01uF
25V
+3.5V_ST
C8038
0.01uF
25V
C8031
22uF
22uF
10V
C8044
100pF
50V
OPT
R8057
10K
1%
C8048
22uF
22uF
10V
R8056
10K
10K
1/10W
1%
C8034
0.01uF
25V
L8008
CIC21J501NE
C8009
0.1uF
50V
0.1uF
50V
C8010
10uF
25V
25V
OPT
C8022
0.1uF
50V
0.1uF
50V
C8002
10uF
25V
10uF
25V
C8013
4.7uF
4.7uF
50V
IC8002
MP2108DQ
EAN60991601
3
LX
2
VIN
4
PGND
1
BST
5
SGND
6
SS
7
FB
8
COMP
9
VREF
10
RUN
IC8001
MP2208DL-LF-Z
EAN60911601
3
PGND_1
2
SS
4
SW_1
1
AGND
6
NC
5
IN_1
7
BS
8
VCC
9
POK
10
IN_2
11
SW_2
12
PGND_2
13
EN/SYNC
14
FB
15
EP
Q8004
AO3407A
G
D
S
0.1uF
C8062
0.1uF
C8056
OPT
+3.3V_NORMAL
R8059
10K
SEMTECH
L8017
500
A2.5V
R8072
39K
1%
39K
1%
SEMTECH
R8073
18K
1%
18K
1%
SEMTECH
0.1uF
C8055
L8014
500
C8053
10uF
16V
C8058
10uF
16V
C8061
10uF
16V
C8033
1uF
10V
1uF
10V
C8039
3300pF
50V
DEV
DEV
R8044
10K
C8041
22uF
10V
C8043
22uF
10V
C8037
22uF
10V
R8046
30K
1%
L8007
CIC21J501NE
R8055
10K
1%
R8053
47K
1%
R8050
10K
+5V_NORMAL
C8049
0.1uF
16V
0.1uF
16V
POWER_ON/OFF2_2
C8028
10uF
25V
10uF
25V
R8054
5.6K
1%
L8010
3.6uH
3.6uH
NR8040T3R6N
C8047
22uF
10V
22uF
10V
C8030
10uF
25V
10uF
25V
+12V
R8049
12K
C8046
100pF
50V
OPT
C8066
22uF
10V
22uF
10V
C8067
0.1uF
0.1uF
C8040
2200pF
C8052
22uF
25V
25V
R8071
10K
1%
+3.3V_NORMAL
+12V
R8066
3.9K
OPT
C8059
22uF
22uF
10V
L8016
CIC21J501NE
R8058
20K
R8070
4.7K
1%
C8069
50V
OPT
IC8005
AOZ1024DI
EAN60660601
1
PGND
2
VIN
3
AGND
4
FB
5
COMP
6
EN
7
LX
C8057
22uF
22uF
10V
POWER_ON/OFF2_2
C8051
0.1uF
0.1uF
50V
R8069
27K
1%
L8013
CIC21J501NE
C8064
0.1uF
16V
0.1uF
16V
C8063
0.1uF
16V
0.1uF
16V
C8054
3300pF
3300pF
50V
L8015
3.6uH
3.6uH
R8060
10K
D3.3V
R7580
0
26"
INV_CTL
C7928
0.01uF
50V
0.01uF
50V
26"
JK7500
JPD003N-M432-4F
GND
SW
24V
R7511
6.8K
OPT
R7517
10K
OPT
L7504
MLB-201209-0120P-N2
P7501
SM14B-SRSS-TB
26"
1
24V
2
24V
3
24V
4
24V
5
24V
6
GND
7
GND
8
GND
9
GND
10
GND
11
ERROR_OUT
12
INV_ON
13
NC
14
PWM_DIM
15
GND
C7517
68uF
35V
35V
L7912
MLB-201209-0120P-N2
R7516
10K
10K
+3.3V_NORMAL
C7507
1uF
6.3V
OPT
6.3V
OPT
C7580
68uF
35V
35V
C7927
0.1uF
50V
0.1uF
50V
26"
R7514
1K
1K
C7502
0.1uF
50V
50V
+24V_LED_driver
Q7502
2SC3052
2SC3052
E
B
C
C7514
0.1uF
0.1uF
50V
PWM_DIM
+24V_LED
R7515
10K
10K
+3.5V_ST
+24V
RL_ON
Q7520
E
B
C
R7862
22K
22K
C7925
2.2uF
2.2uF
50V
C7924
0.1uF
50V
0.1uF
50V
R7861
27K
27K
C7926
0.01uF
50V
R7860
10K
+24V_LED_driver
Q7521
AO3407A
G
D
S
+24V_LED
R7547
30K
1%
R7582
100
100
1%
R7569
10K
OPT
+3.5V_ST
R7584
27K
1/16W
1%
OPT
R7585
100K
100K
OPT
+3.5V_ST
R7583
1K
1/16W
1%
OPT
IC7510
NCP803SN293
OPT
1
GND
3
VCC
2
RESET
POWER_DET
R7561
100K
100K
R7586
100
100
1%
OPT
R7548
5.1K
5%
+24V
IC7509
NCP803SN293
NCP
1
GND
3
VCC
2
RESET
C8065
0.1uF
16V
0.1uF
16V
L7505
5V_PANEL
C7932
3.3uF
50V
POWER_ON/OFF2_2
Q7501
AO3407A
G
D
S
C7933
0.01uF
50V
0.01uF
50V
C7503
2.2uF
2.2uF
50V
Q7500
E
B
C
AMP_VCC
RL_ON
C7505
0.01uF
50V
+24V
R7503
22K
22K
R7832
10K
OPT
L7913
CPI2520NHL3R3ME
R7500
10K
10K
R7501
27K
27K
C7501
0.1uF
50V
0.1uF
50V
+5V_NORMAL
Q7504
Si4800BDY
3
S3
2
S2
4
G
1
S1
5
D5
6
D6
7
D7
8
D8
+24V
C7522
1uF
50V
1uF
50V
R7542
22K
OPT
RL_ON
+12V
C7519
1uF
25V
1uF
25V
L7508
4.7uH
4.7uH
SP-7850_4.7
C7533
0.1uF
50V
0.1uF
50V
R7581
1.6K
1/8W
1%
C7545
0.1uF
50V
C7536
3.3uF
50V
3.3uF
50V
C7532
10uF
25V
R7538
6.8K
1%
C7537
10uF
25V
C7540
3.3uF
50V
3.3uF
50V
R7519
22
1/10W
5%
R7540
120K
120K
1%
IC7503
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
R7544
105K
105K
1/10W
1%
1%
C7527
0.1uF
50V
R7529
100K
100K
C7542
3.3uF
50V
3.3uF
50V
R7525
68K
1/16W
5%
R7570
18K
L7509
3.6uH
3.6uH
NR8040T3R6N
R7543
30K
1/10W
1%
C7538
10uF
10V
10uF
10V
+3.5V_ST
R7571
22
C7543
0.1uF
50V
0.1uF
50V
C7544
0.1uF
50V
0.1uF
50V
+24V
D7500
MBRA340T3G
C7524
220pF
220pF
50V
C7571
10uF
10V
10uF
10V
R8001
10K
10K
R8010
33K
12_PANEL
R8011
5.6K
12V_PANEL
R8010-*1
22K
5V_PANEL
R8011-*1
2.7K
5V_PANEL
R8829
2.2K
1/10W
R8830
2.2K
1/10W
R8831
2.2K
1/10W
D8000
5.6V
ESD
R8045-*1
100K
100K
ESD
IC8004-*1
SC4215ISTRT
0IPMGS1010A
SEMTECH
3
VIN
2
EN
4
NC_2
1
NC_1
5
NC_3
6
VO
7
ADJ
8
GND
IC8004
AP2132MP-2.5TRG1
EAN61387601
BCD
3
VIN
2
EN
4
VCTRL
1
PG
5
NC
6
VOUT
7
ADJ
8
GND
9
[EP]
R8072-*1
15K
1%
15K
1%
BCD
R8073-*1
4.7K
1%
4.7K
1%
BCD
C8070
0.1uF
OPT
0.1uF
OPT
L8018
BCD
500
+5V_NORMAL
R8086
10K
BCD
R8087
10K
BCD
C8071
100pF
50V
100pF
50V
sattellite sensitivity
WLED_ENABLE
R7537
100K
100K
1/8W
5%
5%
IC8003
AOZ1072AI-3
EAN60922902
3
AGND
2
VIN
4
FB
1
PGND
5
COMP
6
EN
7
LX_1
8
LX_2
IC7502
MP8670DN-LF-Z(SORTING)
3
VCC
2
BST
4
BG
1
SW
5
GND
6
FB
7
EN/SYNC
8
IN
Vout=(1+R1/R2)*0.8
R2
3A
+5V_USB
PANEL_POWER
R1
MAX 1500mA
Max 1100 mA
MAX 3.1A
Vout=0.8*(1+R1/R2)
R1
R2
BCM core 1.2V volt
Placed on SMD-TOP
Vout=0.9*(1+R1/R2)
Replaced Part
R1
C IN
3A
Placed on SMD-TOP
R2
BCM DDR 1.8V
A2.5V
R1
R2
2A
R1
+5V_NORMAL
Vout=0.8*(1+R1/R2)
MAX 350mA
R2
MAX 2.3A
+3.3V_NORMAL
3.3K -> 1K (threshold voltage up)
LED Driver Power
AO3407A Vgs : 10.8V
24V-->3.48V
UNDER CHECKING
ST_3.5V-->3.5V --> 3.375V
15V-->3.56V
Power_DET
For RESET at 8kV ESD
4A -> 3A modify 090916
AO3407A Vgs : 10.8V
AO3407A Vgs : 10.8V(24V input)
$0.12
$0.37
close to IC7502
R2
24V->12V
real output : 12.3V
R1
090916
Placed on SMD-TOP
$0.21
24V->3.5V
close to pin
Switching noise reducing [MPS recommend]
BCD VOUT : 2.514V
SEMTECH VOUT : 2.533V
BCD:Vout=0.6*(1+R1/R2)
SEMTEK:Vout=0.8*(1+R1/R2)
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