Document: After-sales Maintenance Service Manual No.: L32R63*VKE/L40R63*VKE/L43R63*VKE/L49R63*VKE Version: 1.0 Effective from: APRIL 4th, 2016
Page 28 of 49
XIII. Circuit Diagram (32"/40", 3in1 board)
DCDC_FB
DCDC_EN
BP
OVP
OVP
LED+ LED+
LED-
LED+ LED+
LED- LED- LED- LED-
PWM#
LED+
FB
FB
BP
+12V
+12V_NORMAL
+5V_Standby
+5V_Standby
+5V_Normal
+5V_Standby
+12V
AGND
+12V
AGND
AGND
AGND
PGND
AGND
AGND
+12V
PGND
AGND
PGND
AGND
PGND
PWR_ON/OFF
5
BL-ADJUST
4
BL-O
N/OFF
4
SOT23
TO MASTER CHIP
5V
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)
R2
DC/DC
R1
12V TO 5V Power
5V MAX 3A
VO=21V~~30.4V IO=900MA
T2AL/250Vac
-
+
PD3
D
4KB
8
4A
800
V
整流桥
-
+
PD3
D
4KB
8
4A
800
V
整流桥
2
1
3
4
PU3
MP9495DJ
PU3
MP9495DJ
AAM
1
IN
2
SW
3
GN
D
4
BST
5
EN/SYNC
6
VCC
7
FB
8
!!
PR8
NC
PR8
NC
PC13
100PF/50V
PC13
100PF/50V
+
PEC6
220uF/50V
+
PEC6
220uF/50V
PR56 2K
PR56 2K
PC19
0.1uF
PC19
0.1uF
PR11
47R
PR11
47R
PR6
1
36.5K 1%
PR6
1
36.5K 1%
PR33 0R33
PR33 0R33
PC29
10uF/16V
PC29
10uF/16V
PCY1
471/400Vac
PCY1
471/400Vac
+
PEC3
1000uF/16V
+
PEC3
1000uF/16V
+
PEC1
47uF/50V
+
PEC1
47uF/50V
PC14
100PF/50V
PC14
100PF/50V
PR5
7
100K
PR5
7
100K
PR20 1R2
PR20 1R2
PR14
560R
PR14
560R
PR55 36K
PR55 36K
C144
10uF
C144
10uF
+
CA9
470uF/16V
+
CA9
470uF/16V
PC17
10uF/16V
PC17
10uF/16V
PR9 1K/NC
PR9 1K/NC
PU1
LNK6777
PU1
LNK6777
PD
1
S
7
CP
3
FB
2
BP
4
D
6
PR
6
47
Ω
PR
6
47
Ω
PRXC
1M
Ω
PRXC
1M
Ω
PT1A
EQ2514
PT1A
EQ2514
4
6
8
10
PR1
5
10K
PR1
5
10K
PR4 10R
PR4 10R
PC7
22PF/1KV
PC7
22PF/1KV
PC5
1UF/25V
PC5
1UF/25V
+
PEC5
68uF/450V
+
PEC5
68uF/450V
!!
PD1
6
1N4148
PD1
6
1N4148
PQ112
ME2325
PQ112
ME2325
1
3
2
PR2
6
390K
PR2
6
390K
PC15
100PF/50V
PC15
100PF/50V
PR17
560R
PR17
560R
PRXA
1M
Ω
PRXA
1M
Ω
PR19 1K
PR19 1K
!!
PQ3 AOD4286
PQ3 AOD4286
PT1B
EQ2514
PT1B
EQ2514
2
3
PF1
T2AH/250Vac
PF1
T2AH/250Vac
PCY2 471/400Vac
PCY2 471/400Vac
PC165 0.22uf
PC165 0.22uf
PR18 10K
PR18 10K
PC27
470PF/1KV
PC27
470PF/1KV
PQ4 NC
PQ4 NC
1
3
2
PD8
SR5100
PD8
SR5100
PR31 0R33
PR31 0R33
+
PEC4
1000uF/16V
+
PEC4
1000uF/16V
PL1
20mH
PL1
20mH
2
1
3
4
t
PNTC1 2.5
Ω
/6A
t
PNTC1 2.5
Ω
/6A
C140
0.1uF
C140
0.1uF
PR5
3
10K
PR5
3
10K
PR12 NC
PR12 NC
PC4
1nF/200V
PC4
1nF/200V
PC22
1UF/25V
PC22
1UF/25V
PC21
0.1uF
PC21
0.1uF
PC2
10NF/50V
PC2
10NF/50V
PC9
NC
PC9
NC
PR5
2
470R
PR5
2
470R
PL4
47uH/15x15mm
PL4
47uH/15x15mm
1
2
PQ1 NC
PQ1 NC
1
3
2
PC6
100nF/25V
PC6
100nF/25V
PR29 51K
PR29 51K
PR1
3
22R
PR1
3
22R
PR10 NC
PR10 NC
PQ2 2907
PQ2 2907
1
3
2
PR
7
47
Ω
PR
7
47
Ω
!!
PC20
0.1uF
PC20
0.1uF
C89
10uF
C89
10uF
PR3
0
470R
PR3
0
470R
PCY3 221/400Vac
PCY3 221/400Vac
PR228
10K
PR228
10K
PR6
0
10R
PR6
0
10R
!!
PR62
6.8K 1%
PR62
6.8K 1%
PR2
51K
PR2
51K
PC10
47nF/16V
PC10
47nF/16V
PD
1
ES1J
PD
1
ES1J
C88
10uF
C88
10uF
PR4
0
47R
PR4
0
47R
PR24 56K
PR24 56K
PD6
SR5100
PD6
SR5100
PC12
1nF/50V
PC12
1nF/50V
PR38 0R33
PR38 0R33
PQ103
MMBT3904
PQ103
MMBT3904
PRXD
1M
Ω
PRXD
1M
Ω
PR59
10K
PR59
10K
PC11
NC
PC11
NC
+
PEC2
1000uF/16V
+
PEC2
1000uF/16V
PC18
0.1uF
PC18
0.1uF
PR5 33K
PR5 33K
PCY4
471/400Vac
PCY4
471/400Vac
PC
8
1nF/200V
PC
8
1nF/200V
PC16
0.1UF/50V
PC16
0.1UF/50V
PL6
4.7uH/3A
PL6
4.7uH/3A
1
2
PR22 1R5
PR22 1R5
PD17
M7
PD17
M7
PR58
90.9K
PR58
90.9K
!!
PR45 4.7K
PR45 4.7K
PC28
1NF/200V
PC28
1NF/200V
PR198
4.7K
PR198
4.7K
PR39
10R
PR39
10R
PC3
100PF/50V
PC3
100PF/50V
PL5
8UH
PL5
8UH
1
2
!!
PR227
100K
PR227
100K
PR3
2
0R
PR3
2
0R
PD7
SR5100
PD7
SR5100
PR16
560R
PR16
560R
PRXB 1M
Ω
PRXB 1M
Ω
!!
PCN1PCN1
3
3
1
1
PR28
560R
PR28
560R
PD
4
NC
PD
4
NC
PCX1
0.33UF/250V
PCX1
0.33UF/250V
+
PCA6
470uF/16V
+
PCA6
470uF/16V
10Pin_2.0mm
PJ2
10Pin_2.0mm
PJ2
1 2 3 4 5 6 7 8 9 10
PD2
ES1J 1A600V
PD2
ES1J 1A600V
PD
5
NC
PD
5
NC
PR23
20K
PR23
20K
PR27 1R5
PR27 1R5
PR2
5
3.3K
PR2
5
3.3K
PR3
51K
PR3
51K
!!
PC1
0.47UF/16V
PC1
0.47UF/16V
PR21 1R2
PR21 1R2
S1
散热片
S1
散热片
1 4 3
PU2
OB3350CP
PU2
OB3350CP
VIN
1
GATE
2
GN
D
3
CS
4
FB
5
COMP
6
OVP
7
PWM
8
PR1
0R
PR1
0R
!!
PD10 SR560L
PD10 SR560L
L32R63_VKE,L40R63_VKE,L43R63_VKE,L49R63_VKE_CIS_Russia.indd 28
2016-04-05 오전 11:01:03
