Document: After-sales Maintenance Service Manual No.: L32R63*VKE/L40R63*VKE/L43R63*VKE/L49R63*VKE Version: 1.0 Effective from: APRIL 4th, 2016
Page 35 of 49
XIV. Circuit Diagram (43", 3in1 board)
DCDC_EN
EN
12V
DIM
EN
DIM
+12V
+12V_NORMAL
+12V
+5V_Standby
+5V_Standby
+5V_Normal
+5V_Standby
AGND
AGND
PGND
AGND
AGND
AGND
AG
ND
AGND
+12V
PGND
PGND
PGND
AGND
PGND
AGND
+30V
PGND
+30V
PGND
PGND
AGND
+12V
PWR_ON/OFF
5
PWR_ON/OFF
5
BL-ON/OF
F
4
BL-ADJUS
T
4
SOT23
TO MASTER CHIP
12V
反馈电阻靠近
DCDC,
敏感线
,
远离干扰源
靠
近
DC-D
C
靠
近
DC-D
C
Vout=0.8V*(1+R1/R2)
DC/DC
R2
R1
12V TO 5V Power
5V MAX 3A
SOT23
TO MASTER CHIP
5V
PQ104
222
PQ104
222
PR58
20k
PR58
20k
PR264 27K
PR264 27K
PR50
1k
PR50
1k
PR236
10k
PR236
10k
PL
8
4.7uH/3A
PL
8
4.7uH/3A
1
2
PR2
2
10R
PR2
2
10R
!!
PR200
10K
PR200
10K
PRXA
1M
Ω
PRXA
1M
Ω
PR
1
1k
PR
1
1k
PR71 NC
PR71 NC
+
PEC2
1000uF/50V
+
PEC2
1000uF/50V
PR73 NC
PR73 NC
PR54 TBD
PR54 TBD
PR51
510k
Ω
PR51
510k
Ω
t
PNTC
2.5
Ω
/5A
t
PNTC
2.5
Ω
/5A
PR268
NC
PR268
NC
PC46 10nF
PC46 10nF
PD15PD15
PR41
6.8K
PR41
6.8K
PU7B
PC817C
PU7B
PC817C
2
1
PC166 0.22uF
PC166 0.22uF
PC37 10nF
PC37 10nF
PC62
100k
PC62
100k
PR72
NC
PR72
NC
!!
PC67
0.1uF
PC67
0.1uF
PR257
1R
PR257
1R
PD12 TBD
PD12 TBD
PC93 1uF/25V
PC93 1uF/25V
PRXC
1M
Ω
PRXC
1M
Ω
PR262 27K
PR262 27K
PC56
10uF/16V
PC56
10uF/16V
PQ112
ME2325
PQ112
ME2325
1
3
2
PD4
RL207
PD4
RL207
PR260
NC
PR260
NC
PU11
MP3394S
PU11
MP3394S
Vin
15
Vcc
16
Comp
1
EN
2
Osc
5
Bosc
7
Dbrt
3
Iset
6
LED4
8
LED3
9
LED2
10
LED1
11
OVP
12
GND
4
Isence
13
Gate
14
PR201 100K
PR201 100K
PD23 M7
PD23 M7
+
PEC11
47uF/100V
+
PEC11
47uF/100V
PR5
3
36.5K
PR5
3
36.5K
PCX1
0.68UF/275V
PCX1
0.68UF/275V
PRXD
1M
Ω
PRXD
1M
Ω
PC58 0.1uF
PC58 0.1uF
PR198
4.7K
PR198
4.7K
PC87
100PF
PC87
100PF
PR4
9
TBD
PR4
9
TBD
PRJ3PRJ3
PL16PL16
1
2
PT1B
EFD30
PT1B
EFD30
1
1
2
2
PR228
10K
PR228
10K
+
PEC8
470uF/25V
+
PEC8
470uF/25V
!!
PC39 NC
PC39 NC
PR256
1R
PR256
1R
PR235
5.1k
PR235
5.1k
PL15PL15
1
2
PCN105PCN105
3
3
1
1
PQ29
7S60
PQ29
7S60
PR64
47
Ω
PR64
47
Ω
PR61 2K
PR61 2K
!!
!!
PR10 91K
PR10 91K
PR60
24k
PR60
24k
PR70
90.9K
PR70
90.9K
PR270 10k
Ω
PR270 10k
Ω
PC5
0.1uF
PC5
0.1uF
PC165 0.22uf
PC165 0.22uf
PC65
1uF
PC65
1uF
Q3
MMBT3904
Q3
MMBT3904
PC88
10nF
PC88
10nF
PC193
0.22uF/50V
PC193
0.22uF/50V
PR4
3
100K
PR4
3
100K
C140
0.1uF
C140
0.1uF
PC86
1nF/1kV
PC86
1nF/1kV
PC91
1UF/25V
PC91
1UF/25V
PR259
1R
PR259
1R
PR55
TBD
PR55
TBD
PCY2
471/400V
PCY2
471/400V
PQ8 AOD478
PQ8 AOD478
PC02
222/400V
PC02
222/400V
PC70
0.1uF
PC70
0.1uF
PR63 2K
PR63 2K
PC90
1UF/35V
PC90
1UF/35V
PC89
10NF
PC89
10NF
C137
0.1uF
C137
0.1uF
PD10
SR5100
PD10
SR5100
PR65
10k
Ω
PR65
10k
Ω
PR231 1K
PR231 1K
PR56 2.2K
PR56 2.2K
PR6
2
68K
PR6
2
68K
PR267 NC
PR267 NC
PU8PU8
13
2
PR74
10K
PR74
10K
PH14
CON3
PH14
CON3
1 2 3
PC82
1nF/1kV
PC82
1nF/1kV
PC60
1uF
PC60
1uF
PR249 0
Ω
PR249 0
Ω
PC57
0.1uF
PC57
0.1uF
PR57 2K
PR57 2K
PD25 NC
PD25 NC
PR23
9
47
Ω
PR23
9
47
Ω
PCY3
102/400V
PCY3
102/400V
PR255 470
Ω
PR255 470
Ω
PR30
C
0.22
Ω
PR30
C
0.22
Ω
C141
10uF
C141
10uF
PC47 NC
PC47 NC
PR6
9
NC
PR6
9
NC
+
PEC9
82uF/450V
+
PEC9
82uF/450V
+
PCA6
470uF/16V
+
PCA6
470uF/16V
PR230
47
Ω
PR230
47
Ω
PL18PL18
1
2
PR5
2
TBD
PR5
2
TBD
+
PEC10
47uF/50V
+
PEC10
47uF/50V
PC188
NC
PC188
NC
PD1
RL207
PD1
RL207
C144
10uF
C144
10uF
+
CA9
470uF/16V
+
CA9
470uF/16V
PL19
68uH
PL19
68uH
PF1 3.15AL/250Vac
PF1 3.15AL/250Vac
PC01
102/1kV
PC01
102/1kV
PR2
0
33K
PR2
0
33K
PR59 2K
PR59 2K
PR261
47
Ω
PR261
47
Ω
PCY1 471/400VPCY1471/400V
PL13PL13
1
2
PC71
100pF
PC71
100pF
PR227
100K
PR227
100K
PR30
B
0.22
Ω
PR30
B
0.22
Ω
PD11 36V
PD11 36V
PR258
1R
PR258
1R
PQ103
MMBT3904
PQ103
MMBT3904
!!
PR67
NC
PR67
NC
PC97
10UF/16V
PC97
10UF/16V
PR68
100R
PR68
100R
PR238
47
Ω
PR238
47
Ω
PR66
47
Ω
PR66
47
Ω
+
PEC6
470uF/25V
+
PEC6
470uF/25V
PRJ1PRJ1
PC69 470nF
PC69 470nF
PR232 NC
PR232 NC
PD5 RS07
PD5 RS07
PD6
SR5200
PD6
SR5200
!!
PD2 RL207
PD2 RL207
PU12
MP9495DJ
PU12
MP9495DJ
AAM
1
IN
2
SW
3
GN
D
4
BST
5
EN/SYNC
6
VCC
7
FB
8
PRV1 NC
PRV1 NC
PR234 5.1K
PR234 5.1K
10Pin_2.0m
m
PJ2
10Pin_2.0m
m
PJ2
1
2
3
4
5
6
7
8
9
10
PR199
4.7K
PR199
4.7K
!!
R88 10k
R88 10k
PRXB 1M
Ω
PRXB 1M
Ω
PRJ2PRJ2
!!
+
PEC7
470uF/25V
+
PEC7
470uF/25V
PR17 4.7K
PR17 4.7K
PC64 NC
PC64 NC
PR22
9
47
Ω
PR22
9
47
Ω
PC68
NC
PC68
NC
!!
PD
9
SR5200
PD
9
SR5200
PC261
1UF/25V
PC261
1UF/25V
PL2 TBD
PL2 TBD
1
3
2
4
PU1
OB5269CP
PU1
OB5269CP
RT
1
GN
D
4
CS
3
GATE
5
VD
D
6
HV
8
FB
2
PC59 100pF
PC59 100pF
PQ113
ME2325
PQ113
ME2325
1
3
2
PR84 NC
PR84 NC
PL1
TBD
PL1
TBD
1
3
2
4
PD3 RL207
PD3 RL207
PR233
1K
PR233
1K
PT1A
EFD30
PT1A
EFD30
4
4
10
10
11
11
3
3
9
9
12
12
8
8
6
6
5
5
7
7
!!
+
PEC5
1000uF/50V
+
PEC5
1000uF/50V
PU7A
PC817C
PU7A
PC817C
3
4
!!
PC36 NC
PC36 NC
PR30
A
0.22
Ω
PR30
A
0.22
Ω
L32R63_VKE,L40R63_VKE,L43R63_VKE,L49R63_VKE_CIS_Russia.indd 35
2016-04-05 오전 11:01:06
