LG 42LH20FD (CHASSIS:LT91A) 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.
220uF
16V
C608
22
26"UP_HD
R629
1/10W
2K
R619
0
R616
OPT
LVDS_BC-
OPC_OUT
0
OPT
R630
PWM_DIM
OPC_OUT
0
R615
OPT
1000pF
50V
C609
PANEL_POWER
PWM_DIM
CB3216PA501E
22"UNDER
L607
LVDS_BC+
0
R611
FHD_V4
LVDS_B1-
LVDS_B2-
PANEL_POWER
LVDS_B0+
LVDS_B1+
0
R628
OPT
0
R627
26"UP_HD
LVDS_B3-
0
FHD_V4
R614
1/10W
2K
R622
0
26"UP_HD
R626
22
FHD_V4
R613
0
R612
OPT
LVDS_B3+
PANEL_POWER
LVDS_B2+
LVDS_B0-
0 . 1 u F
C610
CB3216PA501E
26"UP_HD
L606
LVDS_B1+
LVDS_B0-
LVDS_BC-
LVDS_BC+
LVDS_B0+
LVDS_B3+
LVDS_B2+
LVDS_B3-
LVDS_B2-
LVDS_B4+
LVDS_B4-
LVDS_B1-
LVDS_A3-
LVDS_A4+
LVDS_AC-
LVDS_A0+
LVDS_A2-
LVDS_A1-
LVDS_A1+
LVDS_AC+
LVDS_A3+
LVDS_A4-
LVDS_A0-
LVDS_A2+
+3.3V
0
OPT
R618
BIT_SEL
3.3K
OPT
R617
22
R625
+3.3V
0
OPT
R624
LVDS_SEL
2.2K
OPT
R623
0
OPT
R621
OPC_EN
+3.3V
LVDS_B0+
LVDS_B2-
LVDS_B1+
LVDS_B3-
LVDS_BC+
LVDS_B1-
LVDS_B0-
LVDS_B3+
LVDS_B2+
LVDS_BC-
TF05-51S
P602
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
FF10001-30
P954
22"UNDER
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
FF10001-30
P603
26"UP_HD
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
0
R632
2.2K
R631
OPT
+3.3V
PANEL_AGP
510
R620
OPC
6 1 1
****LVDS_SEL****
High:JEIDA
Low/NC:VESA
****************
EAX60838501_MERCURY
Taiwan_LH20/LH30
EAX60838501
2 0 0 9 . 0 2 . 1 0
LVDS
LGE Use Only
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.
HDMI3_SDA
0 0 2 : E 1 3 ; 0 0 7 : A L 1 6
JP707
0
R729
FHD
2K
R701
JP708
22
R708
HDMI3_SDA
HDMI2_CLK-
EAG42463001
JK703
LH30
14
13
5
D1_GND
20
JACK_GND
12
11
2
D2_GND
19
18
10
CK+
4
D1+
1
D2+
17
9
D0-
8
D0_GND
3
D2-
16
7
D0+
6
D1-
15
0
R717
CEC_REMOTE
007:X6;007:AG23;007:AL6
HDMI1_SCL
47K
R724
22
R720
GND
JP703
HDMI3_RX0-
0 0 2 : E 1 2
GND
HDMI1_RX1+
002:D8
HDMI2_RX1+
002:D10
ENKMC2838-T112
D704
D704
A1
C
A2
5V_HDMI_1
22
R733
FHD
0
R704
0
R722
AT24C02BN-10SU-1.8
IC701
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
0
R702
HDMI2_RX2+
002:D11
5V_HDMI_3
HDMI3_CLK+
0 0 2 : E 1 2
HDMI2_SCL
HDMI1_SDA
0 0 2 : D 9 ; 0 0 7 : J 1 6
AT24C02BN-10SU-1.8
IC703
LH30
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
EDID_WP
HDMI1_CLK+
002:D7
HDMI2_RX2-
002:D11
47K
R725
GND
47K
R711
JP706
JP704
0
R705
0 . 1 u F
C705
HDMI2_SDA
HDMI1_RX0-
002:D8
ENKMC2838-T112
D706
D706
FHD
A1
C
A2
HDMI3_SCL
CEC_REMOTE
0 0 7 : J 6 ; 0 0 7 : X 6 ; 0 0 7 : A G 2 3
5V_HDMI_2
47K
R737
FHD
22
R707
2K
R728
FHD
JP702
HDMI2_SCL
0
R730
FHD
HDMI3_RX0+
0 0 2 : E 1 2
HDMI3_SCL
0 0 2 : E 1 4 ; 0 0 7 : A L 1 6
HDMI3_RX1+
0 0 2 : E 1 3
0 . 1 u F
16V
16V
C701
0
R731
FHD
JP701
+5V_ST
0
R714
47K
R738
FHD
0 . 1 u F
C707
FHD
HDMI2_CLK+
002:D9
+5V_ST
GND
22
R734
FHD
HDMI2_SDA
HDMI1_RX2-
002:D8
HDMI3_RX2+
0 0 2 : E 1 3
2K
R713
HDMI2_RX0+
002:D10
5V_HDMI_1
HDMI1_SCL
0 0 2 : D 9 ; 0 0 7 : J 1 6
+5V_ST
5V_HDMI_2
HDMI1_RX0+
002:D7
HDMI1_RX2+
002:D8
AT24C02BN-10SU-1.8
IC702
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
EDID_WP
0
R735
FHD
CEC_REMOTE
0
R715
J P 7 0 5
ENKMC2838-T112
D705
D705
A1
C
A2
HDMI1_CLK-
002:D7
5V_HDMI_3
HDMI3_RX2-
0 0 2 : E 1 3
HPD1
HDMI1_SDA
HDMI2_RX0-
002:D10
HDMI3_RX1-
0 0 2 : E 1 3
0
R706
47K
R710
22
R721
HDMI2_RX1-
002:D10
0 . 1 u F
C702
HDMI1_RX1-
002:D8
HDMI3_CLK-
0 0 2 : E 1 2
EDID_WP
CAT24WC08W-T
IC704
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
EEPROM_SDA
EEPROM_SCL
22
R716
22
R718
4.7K
R712
+3.3V
1K
R709
OPT
MMBD301LT1G
30V
D703
0
R740
68K
R726
+3.3V_ST
GND
9.1K
R727
0 . 1 u F
16V
16V
C708
SSM6N15FU
Q701
3
DRAIN2
2
GATE1
1
SOURCE1
4
SOURCE2
5
GATE2
6
DRAIN1
0
OPT
R739
CEC_REMOTE
0 0 7 : J 6 ; 0 0 7 : X 6 ; 0 0 7 : A L 6
HDMI_CEC
0 0 2 : E 1 4
J P 7 0 9
4.7K
R747
0 . 1 u F
C704
2SC3052
Q702
E
B
C
1K
R741
10K
R703
+5V_ST
47K
OPT
R742
HPD2
+5V_ST
Q703
E
B
C
10K
R719
0 . 1 u F
16V
16V
C703
1K
OPT
R723
1K
R743
47K
OPT
R744
HPD3
+5V_ST
Q704
FHD
E
B
C
10K
R732
0 . 1 u F
16V
16V
C706
FHD
1K
OPT
R736
1K
R745
FHD
47K
OPT
R746
QJ41193-FEE2-7F
EAG39789401
JK701
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
QJ41193-FEE2-7F
EAG39789401
JK702
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
7 1 1
HDMI
UI_HW_PORT2
UI_HW_PORT1
UI_HW_PORT3/SIDE
LH30 SIDE HDMI
HDCP EEPROM
Addr:10101--
P l a c e t h i s n e a r b y S 6
Only LH30_FHD
F H D O p t i o n h a s b e e n a p p l i e d t o t h i s b l o c k
EAX60838501_MERCURY
Taiwan_LH20/LH30
EAX60838501
2 0 0 9 . 0 2 . 1 0
HDMI
LGE Use Only
0 . 1 u F
50V
C836
0 . 1 u F
50V
50V
C828
SPK_R+ 008:AH20
1000pF
50V
C830
3 . 3
R824
22000pF
50V
C825
0 . 4 7 u F
50V
C835
SPK_R- 008:AH20
MS_LRCK
002:X20
AMP_VCC
0 . 0 1 u F
50V
50V
C843
3 . 3
R826
0 . 1 u F
50V
50V
C820
0 . 0 1 u F
50V
C841
4.7K
R820
SB_MUTE
001:AO10
0 . 0 1 u F
50V
50V
C842
DA-8580
EAP38319001
EAP38319001
L804
2S
1S
1F
2F
SUB/AMP_SDA
0 0 1 : I 2 5 ; 0 0 1 : A J 1 2 ; 0 1 0 : W 2 3
SPK_L- 008:AH19
0 . 1 u F
50V
C837
3 . 3
R827
4.7K
R822
MS_LRCH
002:X20
SPK_L+
008:AH19
1000pF
50V
C831
MS_SCK
002:X20
AUDIO_MASTER_CLK
002:X20
1000pF
50V
C832
0 . 1 u F
50V
50V
C827
22000pF
50V
C824
+1.8V_AMP
22000pF
50V
C818
+1.8V_AMP
0 . 4 7 u F
50V
C834
0 . 1 u F
50V
50V
C839
1000pF
50V
C833
0 . 1 u F
50V
C838
AMP_RST
001:AA21
DA-8580
EAP38319001
EAP38319001
L805
2S
1S
1F
2F
0 . 0 1 u F
50V
C840
1uF
10V
C817
3 . 3
R825
SUB/AMP_SCL
0 0 1 : I 2 5 ; 0 0 1 : A J 1 2 ; 0 1 0 : W 2 3
4.7K
R823
22000pF
50V
C814
4.7K
R821
+1.8V_AMP
SPK_R-
0 0 8 : A J 1 4
SPK_L-
0 0 8 : A J 1 0
SPK_L+
0 0 8 : A J 8
SPK_R+
0 0 8 : A J 1 2
100pF
50V
C804
100
R809
100
R808
3.3K
R803
100
R802
WAFER-ANGLE
P801
1
2
3
4
0
R801
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.
+3.3V
2SC3052
Q801
E
B
C
+3.3V_ST
33K
R810
OPT
AMP_VCC
10K
R813
33pF
50V
50V
C812
33pF
50V
50V
C809
0 . 1 u F
C808
0 . 1 u F
50V
C805
0 . 1 u F
50V
C802
0 . 1 u F
50V
C813
1000pF
50V
C807
1000pF
50V
C806
0
R804
100
R805
100
R806
100
R807
1N4148W
100V
OPT
D802
1N4148W
100V
OPT
D803
1N4148W
100V
OPT
D804
1N4148W
100V
OPT
D805
BLM18PG121SN1D
L801
BLM18PG121SN1D
L802
AMP_VCC
CB3216PA501E
L803
Big_+24V/Small_+15V
120-ohm
L807
120-ohm
L809
120-ohm
L808
NTP-3100L
EAN60664001
IC801
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
LFM
12
AVDD_PLL
13
DVDD_PLL
14
TEST0
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
10K
R815
ENKMC2838-T112
D801
A1
C
A2
NTP_MUTE
001:AO10
TP801
TP802
TP803
12
R816
12
R817
12
R828
12
R829
10uF
35V
35V
C822
120-ohm
L806
10uF
C829
35V
0 . 1 u F
50V
50V
C1005
0 . 1 u F
50V
50V
C1006
0 . 1 u F
50V
C815
0 . 1 u F
50V
50V
C816
100
R811
1uF
10V
C810
0 . 1 u F
16V
C819
0 . 1 u F
16V
C811
0 . 1 u F
16V
C823
1uF
10V
C801
1uF
10V
C803
12
R996
12
R997
12
R818
12
R819
68uF
35V
C844
SPEAKER_L
SPEAKER_R
8 1 1
AMP
EAX60838501_MERCURY
Taiwan_LH20/LH30
EAX60838501
2 0 0 9 . 0 2 . 1 0
AMP
LGE Use Only
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.
0 . 1 u F
16V
16V
C901
0 . 1 u F
50V
50V
C947
22K 1%
R949
OPC_OUT
2.2uH
L913
0
22"UNDER
R909
0 . 1 u F
50V
C955
ERROR_OUT
1.8K
R946
BLM18PG121SN1D
L910
Big_+24V/Small_+15V
CB3216UA121
L909
26"UP
GND
100uF
16V
16V
C918
26"UP
PWM_DIM
0 . 1 u F
50V
50V
C942
0 . 1 u F
50V
C914
26"UP
L918
22"UNDER
Big_+12V/Small_+15V
0 0 9 : P 1 ; 0 0 9 : A C 2
MP2305DS
IC906
3
SW
2
IN
4
GND
1
BS
5
FB
6
COMP
7
EN
8
SS
100uF
16V
C905
22uF
16V
C945
10.5K
1%
R933
10K
R943
10K
R936
OPT
+3.3V_ST
+5V_ST
2SC3052
Q904
E
B
C
5 . 6 n F
50V
C956
0
R913
22"UNDER
10K
R926
56000
5%
R951
0 . 1 u F
16V
16V
C908
0 . 1 u F
50V
50V
C917
AP1117E33G-13
IC901
2
OUT
3
IN
1
ADJ/GND
Big_+24V/Small_+15V
4 . 7 u F
16V
C932
2SC3052
Q903
26"UP
E
B
C
+3.3V
56K
1%
1%
R957
10uF
16V
16V
C931
330pF
C944
0 . 1 u F
50V
C904
1/8W
75K
1%
R937
+1.8V_DDR
0 . 1 u F
50V
C916
26"UP
POWER_ON/RL_ON
22K
1%
1%
R939
10K
R938
22uF
C925
0 . 1 u F
50V
50V
C937
+5V_ST
Big_+12V/Small_+15V
0 . 1 u F
50V
50V
C948
+5V_ST
MP2212DN
IC902
3
IN
2
GND
4
BS
1
FB
5
VCC
6
SW_1
7
SW_2
8
EN/SYNC
+3.3V_AVDD_MPLL
10uF
C928
10K
R945
0 . 1 u F
C949
4.7K
R901
22
V3_MODULE
R922
GND
8.2K
1%
R934
1/10W
10K
OPT
R944
+3.3V_AVDD
+3.3V
+3.3V
0 . 1 u F
OPT
C902
+3.3V_ST
22
OPC
R925
0 . 1 u F
50V
50V
C939
220uF
16V
C910
10K
R931
26"UP
0 . 1 u F
16V
OPT
C903
NR8040T3R6N
3.6uH
L915
1/10W
10K
R950
SMALL_PANEL_POWER_SRC
10K
R948
0 . 1 u F
50V
C912
22uF
16V
C946
OPT
0
OPT
R911
BLM18PG121SN1D
L905
22"UNDER
9.1K
R958
0
R908
2.2uH
L914
+3.3V_ST
10K
R935
0 . 4 7 u F
25V
25V
C951
100K
R953
POWER_ON/RL_ON
001:AO11;009:M10;009:AE12;010:W17
A_DIM
0 . 1 u F
50V
50V
C930
+5V_USB_SIDE
BLM18PG121SN1D
L911
+3.3V_ST
22K
R940
BLM18PG121SN1D
L902
22"UNDER
BLM18PG121SN1D
L916
+12V
75K
5%
R952
+5V_ST
1/10W
10
1%
R942
12.4K
1%
R959
0 . 1 u F
50V
50V
C959
22uF
C922
OPT
RSR025P03
Q906
S
D
G
0 . 1 u F
50V
C906
330pF
C938
+1.8V_AMP
BLM18PG121SN1D
L908
22uF
C926
+5V_ST
BLM18PG121SN1D
26"UP
L912
+1.26V_VDDC
3216
22uF
16V
16V
C953
PANEL_POWER
22K
R941
0 . 1 u F
50V
50V
C966
0 . 0 1 u F
50V
C929
10uF
C927
2SC3052
Q905
E
B
C
CB3216UA121
L903
CB3216UA121
L906
PANEL_CTL
001:AK10
+1.8V_DDR
L921
Big_+12V/Small_+15V
22UH
L917
22uF
C919
BLM18PG121SN1D
L920
0 . 1 u F
50V
50V
C967
+5V_TUNER
GND
+5V_ST
0 . 1 u F
C960
0 . 1 u F
C965
+5V_GENERAL
0 0 1 : G 2 3 ; 0 0 5 : Y 4 ; 0 0 5 : Z 4 ; 0 0 9 : A K 3
RSR025P03
Q908
S
D
G
10K
R956
10uF
16V
C961
10uF
C963
2SC3052
Q907
E
B
C
+5V_ST
CIC21J501NE
L922
POWER_ON/RL_ON
560
R961
10uF
OPT
C958
22uF
16V
C962
22uF
16V
OPT
C964
BLM18PG121SN1D
L919
26"UP
+5V_GENERAL
BLM18PG121SN1D
26"UP
L901
+12V
0
R962
22"UNDER
10K
R960
10K
R929
OPT
Q902
26"UP
1
2
3
BLM15BD121SN1
L907
26"UP
33K
OPT
OPT
R930
0
R918
26"UP
POWER_ON/OFF_RESETIC
POWER_ON/RL_ON
0
R964
0
R965
0
R963
POWER_ON/OFF_GPIO
+3.3V_ST
10K
R916
+5V_GENERAL
100
R912
10K
OPT
OPT
R928
2SC3052
Q901
E
B
C
10K
R927
INV_CTL
6.8K
OPT
R914
10K
R919
A_DIM_SMALL
A_DIM_SMALL
BG2012B080TF
L904
22"UNDER
1uF
25V
25V
OPT
C907
6602T20009K
WAFER-ANGLE
P901
22"UNDER
1
1 5 V ( 1 8 v )
2
1 5 V ( 1 8 v )
3
GND
4
GND
5
5V
6
5V
7
ACD
8
PWR-ON
9
INV_CTL
10
DIM
11
INV_BR
0 . 1 u F
50V
50V
C968
BLM18PG121SN1D
L923
BLM18PG121SN1D
22"UNDER
L924
SMALL_PANEL_POWER_SRC
BD9150MUV
IC903
1
PGND2_1
3
PVCC_2
7
SW1_1
9
EN1
10
FB1
11
ITH1
12
AGND
13
NC
14
AVCC
15
ITH2
16
FB2
17
EN2
18
SW2_1
19
SW2_2
20
PGND2_2
5
PGND1_1
8
SW1_2
6
PGND1_2
4
PVCC_3
2
PVCC_1
68uF
C915
68uF
C913
1uF
25V
C933
1uF
25V
C943
OPT
4 . 7 u F
10V
OPT
OPT
C954
4 . 7 u F
10V
OPT
OPT
C957
0 . 4 7 u F
25V
C940
22uF
25V
25V
C950
PWM_DIM
0 . 0 2 2 u F
16V
16V
C935
OPT
100pF
50V
50V
C920
OPT
0 . 0 2 2 u F
16V
16V
C934
OPT
100pF
50V
C923
FM20020-24
EAG60670701
26"UP
P902
19
14
12V
9
4
18
20V_24V
13
8
5V_ST
3
17
20V_24V
12
7
5V_ST
2
POWER_ON/RL_ON
16
11
6
1
20
INV_CTL
15
10
5
21
A_DIM
22
ERROR_OUT
23
24
PWM_DIM
25
0
R947
0 . 1 u F
50V
50V
C936
0 . 1 u F
50V
50V
C952
9 1 1
POWER
S t a n d - b y + 3 . 3 V
C1130
C IN
$ 0 . 2 4
450 mA
Placed on SMD-TOP
V o u t = 0 . 9 2 3 * ( 1 + R 1 / R 2 )
MAX 3A
V o u t = 0 . 8 * ( 1 + R 1 / R 2 )
C l o s e t o I C
$ 0 . 0 7
465 mA @85% efficiency
Placed on SMD-TOP
4.9A 0.0150OHM 34MHZ
R2
C l o s e t o I C
V o u t = 0 . 8 * ( 1 + R 1 / R 2 )
R1
P a n e l P o w e r
$ 0 . 0 4 8
C OUT
$ 0 . 2 8
R e p l a c e d P a r t
+5V
S 6 c o r e 1 . 2 6 v o l t
R1
DEVELOPE
R2
1600 mA
R2
FROM LIPS & POWER B/D
R1
F o r P o w e r S e q u e n c e a b o u t P S U
+5V_GENERAL for Small(Src is +5V_ST)
D i r e c t i o n
Direction
2 2 " O p t i o n h a s b e e n a p p l i e d t o t h i s b l o c k
Taiwan_LH20/LH30
EAX60838501
2 0 0 9 . 0 2 . 1 0
POWER
LGE Use Only
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