LG 22LN4060 (CHASSIS:LM91P) Service Manual ▷ View 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
+3.5V_ST
C744
0.1uF
16V
0.1uF
16V
C761
0.1uF
16V
0.1uF
16V
+1.8V_M
C752
0.1uF
16V
PANEL_VCC
PANEL_ON
R747
10K
10K
R749
2.2K
2.2K
POWER_SW
+3.3V_M
P_12V
Q720
AO3407A
G
D
S
L750
BLM18PG121SN1D
Q721
MMBT3904(NXP)
MMBT3904(NXP)
E
B
C
C750
0.1uF
16V
+3.3V_M
R766
4.7K
READY
Q710
AO3435
G
D
S
Q711
MMBT3904(NXP)
MMBT3904(NXP)
E
B
C
R765
3.3K
R748
33K
33K
IC711
AP1117E18G-13
2
OUT
3
IN
1
ADJ/GND
R750
10K
C711
68uF
35V
P_12V
VCC_AMP
C713
0.01uF
50V
+19V
+3.3V_M
R770
47
C775
4700pF
50V
4700pF
50V
R778
12K 1%
R772
4.7K
C773
0.047uF
25V
0.047uF
25V
L771
CB3216PA501E
R777
33K 1%
IC709
MP1472GJ-C452-Z
3
COMP
2
EN
4
FB
1
SS
5
GND
6
SW
7
IN
8
BST
L770
10uH
10uH
C777
47uF
25V
R775
0
C772
0.01uF
50V
R773
47K
47K
R774
8.2K
+19V
R771
180K
C770
10uF
25V
10uF
25V
C776
330pF
50V
330pF
50V
+5V_USB
R776
10K
1%
C780
4.7uF
10V
4.7uF
10V
Q712
AO3407A
G
D
S
D711
18V
READY
+3.3V_M
Q713
MMBT3904(NXP)
MMBT3904(NXP)
E
B
C
R713
5.6K
R715
560
560
R714
560
560
C714
47uF
25V
25V
R711
33K
+18V
R710
10K
1%
C743
10uF
16V
10uF
16V
C745
10uF
16V
10uF
16V
C754
10uF
16V
10uF
16V
C778
10uF
10uF
16V
L703
CB2012PK501T
C746
560pF
50V
+3.5V_ST
R741
4.7K
1%
R740
2.7K
2.7K
1%
R742
0
+1.2V_VDDC
R744
10K
C742
10uF
16V
10uF
16V
C740
10uF
10uF
16V
IC704
AP7173-SPG-13 HF(DIODES)
3
VCC
2
PG
4
EN
1
IN
5
GND
6
SS
7
FB
8
OUT
9
[EP]
C712
0.1uF
25V
0.1uF
25V
C715
0.1uF
25V
0.1uF
25V
C771
0.1uF
25V
0.1uF
25V
C779
0.1uF
25V
0.1uF
25V
C781
0.1uF
25V
0.1uF
25V
C774
0.33uF
16V
0.33uF
16V
READY
R716
7.5K
L761
UBW2012-121F
C753
4.7uF
10V
4.7uF
10V
R762
22K
R761
22K
C760
1uF
35V
1uF
35V
R727
0
C723
220pF
50V
220pF
50V
C724
150pF
50V
150pF
50V
READY
IC702
MP1584EN
3
COMP
2
EN
4
FB
1
SW
5
GND
6
FREQ
7
VIN
8
BST
9
[EP]GND
D721
40V
SMAB34
C727
0.1uF
25V
0.1uF
25V
L720
10uH
R724
68K
R728
15K
1%
C725
47uF
25V
25V
C720
0.1uF
25V
0.1uF
25V
R723
300K
300K
C721
0.1uF
16V
0.1uF
16V
C726
10uF
10uF
16V
R722
10
R725
200K
1%
C728
68uF
35V
35V
C722
10uF
35V
10uF
35V
+24V_BLU
R726
6.2K
6.2K
1%
POWER_SW
R720
4.7K
L721
UBW2012-121F
D712
KDS226
A
AC
C
VCC_AD
ZD711
5.6B
R717
15K
1%
READY
+3.5V_ST
JP702
+19V
IC701
MP1584EN
3
COMP
2
EN
4
FB
1
SW
5
GND
6
FREQ
7
VIN
8
BST
9
[EP]GND
C704
0.1uF
16V
0.1uF
16V
C707
150pF
50V
150pF
50V
READY
JK700
KJA-DC-1-0032
1
1
2
2
4
4
R702
36K
R704
68K
C708
47uF
25V
25V
C703
0.1uF
25V
L702
10uH
C706
220pF
50V
220pF
50V
R705
47K 1%
C710
0.1uF
25V
0.1uF
25V
R706
2K
1%
L704
UBW2012-121F
R708
15K
1%
L701
CB4532UK121E
R709
10
R701
100K
C705
10uF
25V
10uF
25V
D701
40V
SMAB34
C701
47uF
25V
25V
R703
300K
300K
C709
10uF
10uF
16V
JP701
R707
0
D702
40V
SMAB34
D703
40V
SMAB34
C702
10uF
25V
10uF
25V
7 7
POWER
** Switch Panel-Vcc
** +3.5V_ST -> 3.3V_M
** 3.3V_M -> 1.8V_M
19V TO ST3.3V DCDC CONVERTER
OUT
19V TO USB 5V DCDC CONVERTER
R1
V0 = 0.8*(1+(R2/R1))
R2
** 3.5V_ST -> 1.26V VDDC
OUT:1.26V
EAX65303201
LN4050
2012/12/18
19V TO PANEL_12V DCDC CONVERTER
ADD : 13.02.18
CHANGE:13.02.18
ADD : 13.02.18
11.10.27
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.
INPUT1
+24V_BLU
C811
68uF
35V
35V
P801
SM14B-SRSS-TB
24V
24V
24V
24V
24V
GND
GND
GND
GND
GND
ERROR_OUT
INV_ON
NC
PWN_DIM
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
C810
100pF
50V
100pF
50V
C808
1uF
10V
1uF
10V
R810
1K
1K
R801
10K
10K
IC801
TPS40210DGQR
3
DIS/EN
2
SS
4
COMP
1
RC
5
FB
6
GND
7
ISNS
8
GDRV
9
BP
10
VDD
11
[EP]
C805
0.22uF
16V
C812
68uF
35V
35V
R806
1.5K
R812
220K
220K
R809
0.1
1W
JP801
C801
47uF
25V
25V
C804
100pF
100pF
50V
JP803
POWER_SW
R807
51K
51K
JP804
R820
100
100
READY
Q802
MMBT3904(NXP)
MMBT3904(NXP)
E
B
C
R821
0
READY
PWM_DIM
R808
0.1
1W
R802
10K
JP802
Q801
AOD478
AOD478
S
D
G
C802
10uF
25V
10uF
25V
R805
470K
R813
30K
30K
+19V
+3.5V_ST
C806
2200pF
50V
2200pF
50V
C809
0.1uF
16V
0.1uF
16V
C807
47pF
50V
47pF
50V
+24V_BLU
R804
10K
READY
C803
0.1uF
25V
0.1uF
25V
READY
R825
100
100
R814
10
10
C821
0.1uF
25V
0.1uF
25V
R822
4.7K
4.7K
READY
C816
270pF
50V
R803
100K
100K
R811
5.6
5.6
C817
10uF
25V
10uF
25V
C815
47uF
25V
25V
L801
33uH
33uH
D801
PDS5100H-13
R815
0.1
1W
C813
10uF
35V
10uF
35V
C814
10uF
35V
10uF
35V
R828
10K
+5V_USB
INV_ON
R827
3K
Q821
MMBT3904(NXP)
MMBT3904(NXP)
E
B
C
R826
10K
8 8
DC BOOST UP
12.05.17 To improve audible noise
C1103 2200pF->47pF
C1105 47pF->OPT
C1103 2200pF->47pF
C1105 47pF->OPT
12.07.03 To improve backlight blinking
C1103 47pF->2200pF
C1105 47pF->Apply
R1103 18K->470K
C1103 47pF->2200pF
C1105 47pF->Apply
R1103 18K->470K
EAX65303201
LN4050
2012/12/18
ADD : 13.02.20
CHANGE : 13.02.20
ADD : 13.02.20
CHANGE : 13.02.20