Read LG 19LS3300 (CHASSIS:LP24A) Service Manual online
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
PWM_DIM
INV_CTL_26INCH
0
R726
ADAPTER_NON_LED_DRIVER
C701
100uF
16V
NON_ADAPTER
JK700
JPD003N-M432-4F
ADAPTER
GND
SW
24V
C712
0.1uF
0.1uF
50V
ADAPTER
+3.5V_ST
C737
0.1uF
50V
0.1uF
50V
R712
100
100
ADAPTER_NON_LED_DRIVER
IC704
AP1117EG-13
5V_LDO_DIODE
1
ADJ/GND
2
OUT
3
IN
Q732
AO3407A
G
D
S
R748
22K
22K
R799
0
+3.5V_ST
R781
22
C714
0.01uF
50V
0.01uF
50V
ADAPTER_NON_LED_DRIVER
R714
1K
1K
NON_LED_DRIVER
Q702
2SC3052
2SC3052
RL_ON
E
B
C
P702
FM20020-24
NORMAL_32
19
14
9
4
18
13
8
3
17
12
7
2
16
11
6
1
20
15
10
5
21
22
23
24
25
Q730
SI4124DY-T1-GE3(VISHAY)
3
S_3
2
S_2
4
G
1
S_1
5
D_1
6
D_2
7
D_3
8
D_4
R729
1K
110
R773
+1.2V_VDDC
C744
0.1uF
16V
0.1uF
16V
+3.5V_ST
C736
10uF
10V
READY
10uF
10V
READY
C751
4.7uF
16V
4.7uF
16V
READY
C727
2.2uF
50V
50V
R721
0
POWER_22_A_DIM
C761
0.1uF
16V
0.1uF
16V
RL_ON2
L730
MLB-201209-0120P-N2
ADAPTER
C742
10uF
6.3V
10uF
6.3V
R722
0
POWER_20_A_DIM
P_24V
ERROR_OUT
0
R724
POWER_22_PWM_DIM
R734
100
ADAPTER_NON_LED_DRIVER
POWER_SW
R703
4.7K
4.7K
RL_ON
PWM_DIM_LED_DRIVER
C777
10uF
10V
10uF
10V
READY
INV_CTL_26INCH
C745
10uF
6.3V
10uF
6.3V
C733
0.1uF
50V
R756
10K
100
R733
POWER_24_ERROR_OUT
P_24V
R784
68K
C772
0.1uF
50V
0.1uF
50V
R741
4.7K
1%
C773
0.1uF
16V
0.1uF
16V
IC705
AP1117EG-13
5V_LDO_DIODE
1
ADJ/GND
2
OUT
3
IN
C708
68uF
35V
READY
68uF
35V
READY
R796
6.8K
1%
R757
27K
+2.5V_M
IC707
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
R797
1.6K
1.6K
1%
R710
100
100
POWER_18_INV_CTL
R720
0
POWER_18_A_DIM
Q731
MMBT3904(NXP)
MMBT3904(NXP)
E
B
C
C723
3.3uF
50V
3.3uF
50V
IC708
MP8670DN-LF-Z
3
VCC
2
BST
4
BG
1
SW
5
GND
6
FB
7
EN/SYNC
8
IN
C722
0.01uF
50V
C781
0.1uF
0.1uF
16V
R742
1
R785
18K
R793
0
C731
3.3uF
50V
3.3uF
50V
C752
0.1uF
16V
0.1uF
C702
16V
NON_ADAPTER
L771
3.6uH
NR8040T3R6N
+3.3V_M
L704
ADAPTER
120-ohm
R743
1
L770
500
PANEL_VCC
C788
10uF
25V
C735
22uF
16V
22uF
16V
L790
4.7uH
SP-7850_4.7
RL_ON2
R708
0
NON_ADAPTER
R706
0
POWER_23_GND
C707
0.1uF
50V
0.1uF
50V
C709
2.2uF
R763
10K
C770
10uF
25V
10uF
25V
P705
SM14B-SRSS-TB
ADAPTER_NON_LED_DRIVER
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
C743
10uF
10V
10uF
10V
PANEL_ON
RL_ON2
L761
PANEL_12V
120-ohm
L731
CPI2520NHL3R3ME
2520
3.3uH
R747
10K
10K
R702
10K
RL_ON
C740
10uF
10V
10uF
10V
R776
330
0
R725
POWER_24_PWM_DIM
ERROR_OUT_26INCH
P703
SMAW200-H24S2
SLIM_32~52
19
12V
14
GND
9
3.5V
4
24V
18
INV ON
13
GND
8
GND
3
24V
17
12V
12
3.5V
7
GND
2
24V
16
GND/V-sync
11
3.5V
6
GND
1
PWR ON
20
A.DIM
15
GND
10
3.5V
5
GND
21
12V
22
P.DIM1
23
GND/P.DIM2
24
Err OUT
25
SOUND_VCC
INV_ON
IC702
AP2114H-2.5TRG1
1
GND
2
VOUT
3
VIN
5V_TUNER
+3.5V_ST
C787
1uF
50V
0
R723
POWER_20_PWM_DIM
R749
2.2K
2.2K
R777
10K
R711
100
100
POWER_24_INV_CTL
C721
2.2uF
50V
POWER_SW
R761
33K
R798
22
Q710
RSR025P03
Rohm
S
D
G
Q711
2SC3052
2SC3052
E
B
C
R759
0
READY
SOUND_VCC
R753
10K
10K
+24V_LED_driver
Q701
2SC3052
2SC3052
RL_ON
E
B
C
+3.3V_M
C728
0.01uF
50V
R716
10K
10K
NON_LED_DRIVER
C785
0.1uF
50V
0.1uF
50V
P_12V
PWM_DIM_26INCH
C725
68uF
35V
READY
68uF
35V
READY
R751
22K
22K
P_12V
R782
100K
100K
Q720
AO3407A
G
D
S
+5V_PANEL
R752
27K
C734
22uF
16V
22uF
16V
R715
10K
10K
R762-*1
10K
10K
PANEL_5V
C741
0.1uF
16V
0.1uF
16V
R750
10K
READY
C732
220pF 50V
A_DIM
P_12V
R762
33K
PANEL_12V
C786
1uF 25V
R787
105K
105K
1/10W
1%
1%
+3.3V_M
C754
10uF
10V
C780
0.1uF
16V
0.1uF
16V
+3.5V_ST
P_24V
C776
10uF
10V
10uF
10V
C713
0.1uF
50V
0.1uF
50V
ADAPTER_NON_LED_DRIVER
110
R775
C730
0.1uF
50V
0.1uF
50V
C789
10uF
25V
+5V_USB
L702
120-ohm
NON_ADAPTER
0.1uF
C779
50V
R701
4.7K
4.7K
RL_ON
C760
1uF
25V
1uF
25V
L750
BLM18PG121SN1D
R707
0
POWER_24_GND
P_24V_ADAPTER
Q721
MMBT3904(NXP)
MMBT3904(NXP)
E
B
C
L701
120-ohm
NON_ADAPTER
0.1uF
C778
50V
R764
10K
10K
R755
22K
RL_ON
100
R732
POWER_20_ERROR_OUT
L760
PANEL_5V
120-ohm
Q703
2SC3052
NON_LED_DRIVER
E
B
C
C720
0.1uF
50V
0.1uF
50V
L703
NON_ADAPTER
120-ohm
R718
10K
ERROR_OUT_26INCH
C726
0.1uF
50V
0.1uF
50V
C782
100uF
16V
100uF
16V
READY
R795
120K
1%
R774
330
C790
0.1uF
50V
R744
10K
C724
0.01uF
50V
0.01uF
50V
L780
3.6uH
NR8040T3R6N
R740
2.74K
2.74K
1%
R783
200K
200K
1/8W
1%
C784
3.3uF
50V
3.3uF
50V
P701
FW20020-24S
NORMAL_EXPEPT_32
19
14
9
4
18
13
8
3
17
12
7
2
16
11
6
1
20
15
10
5
21
22
23
24
P_12V
P_24V
C783
3.3uF
50V
3.3uF
50V
R730
6.2K
P_24V
R735
0
POWER_16_GND
Q733
MMBT3904(NXP)
MMBT3904(NXP)
E
B
C
R786
30K
1/10W
1%
PWM_DIM_26INCH
+3.5V_ST
0
R727
LED_DRIVER
P_24V_ADAPTER
Q734
AO3407A
G
D
S
+24V_LED_driver
C750
0.1uF
16V
D730
MBRA340T3G
R770
51K
1%
R772
6.8K
1%
C775
0.1uF
16V
0.1uF
16V
C771
1uF
25V
1uF
25V
C794
1uF
25V
1uF
25V
C796
0.1uF
16V
0.1uF
16V
P_12V
C792
0.1uF
50V
0.1uF
50V
+3.3V_M
R792
10K
C795
0.1uF
16V
0.1uF
16V
C793
0.01uF
L781
500
C791
10uF
25V
10uF
25V
L782
3.6uH
NR8040T3R6N
R790
30K
1%
R791
5.6K
1%
C797
10uF
10V
10uF
10V
C798
0.1uF
16V
0.1uF
16V
+5V_PANEL
P706
SMAW200-12
22_LAMP
1
2
3
4
5
6
7
8
9
10
11
12
R700
0
22_LAMP
0.1uF
C705
50V
NON_ADAPTER
+3.3V_M
C799
10uF
10V
10uF
10V
READY
C746
10uF
6.3V
10uF
6.3V
READY
C704
47uF
25V
NON_ADAPTER
R778
47K
47K
R789
47K
47K
R771
33
R794
33
IC704-*1
AZ1117BH-ADJTRE1
5V_LDO_BCD
2
OUTPUT
3
INPUT
1
ADJ/GND
IC705-*1
AZ1117BH-ADJTRE1
5V_LDO_BCD
2
OUTPUT
3
INPUT
1
ADJ/GND
IC701
MP20051
3
FB
2
OUT_2
4
GND
1
OUT_1
5
EN
6
NC
7
IN_1
8
IN_2
9
[EP]GND
C774
0.1uF
IC709
MP1497DJ
3
SW
2
IN
4
GND
1
SS
5
BST
6
EN
7
VCC
8
FB
IC706
MP1497DJ
PANEL_5V
3
SW
2
IN
4
GND
1
SS
5
BST
6
EN
7
VCC
8
FB
R765
4.7K
R766
4.7K
R767
4.7K
READY
Q710-*1
AO3435
AO3435
AOS
G
D
S
7 8
POWER
LP24B
32CS410
2012/03/02
EAX64671103
’11 LPB
INV_ON
24(11)
LGD
** Switch Panel-Vcc
18(12)
Placed on SMD-TOP
37"
PWM_DIM
PIN
NC
24(11)
NC
NC
GND
’11 PSU
GND
* Option block : ADAPTER
INV_ON
V0 = 0.8*(1+(R1/R2))
IPS(PSU)
NC
NC
ERR_OUT
’1O LIPS
16
+24V_LED Driver
ERR_OUT
GND
GND
22(14)
EAE62281601 : 22uF 20% 10V X5R 2012
PWM_DIM
PWM_DIM
LGD(PSU)
PIN
NC
R2
AO3407A Vgs : 8.3V(15V input)
NC
42"
OS
real output : 12.3V
R1
PWM_DIM
GND
NC
NC
R2
’11 PSU
AUO(PSU)
GND
’11 PSU
Close to AMP IC
$0.37
ERR_OUT
ERR_OUT
’1O LIPS
INV_ON
42"
R1
’11 PSU
[Power for LED]
GND
OUT:6.8V
** +3.5V_ST -> 3.3V_M
INV_ON
NC
$0.21
INV_ON
R1
LGD
NC
V0 = 0.8*(1+(R1/R2))
32"
R2
**12V->TUNER 5V
NC
AUO(PSU)
PWM_DIM
ERR_OUT
close to pin
’11 LPB
23
ERR_OUT
close to IC1009
37"
ERR_OUT
’11 PSU
NC
LIPS
INV_ON
+12V/+15V
20(13)
NC
GND
+3.5V_ST
’11 PSU
INV_ON
* Option block : ADAPTER
Switching noise reducing [MPS recommend]
AO3407A Vgs : 10.8V
* Option block : ADAPTER
PWM_DIM
Placed on SMD-TOP
AO3407A Vgs : 10.8V(24V input)
[Pinmap for EEFL]
** 3.5V_ST -> 1.26V VDDC
PWM_DIM
* Option block : ADAPTER
[Power for EEFL]
OUT:1.27V
X
NC
VBR-A
+24V_AMP
INV_ON
16
NC
47"
IPS(PSU)
INV_ON
23
LGD(PSU)
VBR-A
FROM LIPS & POWER B/D
’1O LIPS
GND
NC
ERR_OUT
V0 = 0.8*(1+(R2/R1))
CMI(PSU)
0CZZB00110A : 22uF 20% 10V X7R 3216
OS
20(13)
LPB
32"
47"
PWM_DIM
[Pinmap for Edge LED]
22(14)
ERR_OUT
3A
18(12)
CMI(PSU)
ERR_OUT
GND
INV_ON
*12V -> PANEL_5V (OPTION)
PWM_DIM
NC
EAE58111001 : 22uF 20% 16V X5R 3216
PWM_DIM
Closed IC709
Closed IC709
Closed IC706
R1
R2
3A
Closed IC706
** 3.3V_M -> 2.5V_M
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