Skyworth 6M61S, Service Manual

Page: 41 / 50

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
Test Point & MARK
Connetor
5V Standby Power(option) 3A
Vout=0.8V*(1+R1/R2)
R1
R2
Inverter controller
Power Switch
If POWER BOARD IS 5stb ONLY ,PL NOT PATCH THESE GUY.
Standby controller
H :Power on
L :Power off
3.3V Power
R2
R1
Vout=0.8V*(1+R1/R2)
Resistors close to the DC-DC
1.15V Core Power
Max :1.0A
If chip is 6306,The R2 Value is 8.2K 1%
If chip is 3393,The R2 Value is 10K 1%
NOTICE:
1.5V/1.8V Power_Normal
If chip is 3393,The R1 Value is 220R 5% Vout=1.8V
If chip is 6306,The R1 Value is 470R 5% Vout=1.5V
NOTICE:
R1
R2
Vout=1.25V*(R1+R2)/R1
增加
100UF
电解电容，删除
C15/C16,
改善纹波
输入加大滤波电容解决插入个别硬盘重启
解决耳机冲击声
STANDBY
STANDBY
STANDBY
BL-ON/OFF
BL-ADJUST
BL-ADJUST
BL-ON/OFF
M
U
T
E_E
AR
+12V_PWR
+5V_Standby
+3.3V_Standby
+5V_Normal
+12V_NORMAL
+5V_Standby
+12V_PWR
+3.3V_Normal
+5V_Standby
+3.3V_Standby
+12V_PWR
VDDC
+5V_Normal
+1.8V_DDR2
+12V_PWR
+5V_Standby
+12V_PWR
+12V_NORMAL
+5V_Normal
+5V_Standby
+5V_Normal
STANDBY
PWR-ON/OFF
STANDBY
STANDBY
STANDBY
VBL_CTRL
BRI_ADJ
MUTE_EAR
Title
Size Document Number Rev
Date: Sheet of
System power
1.0
MSD3393
Custom
1 9 Sunday, July 14, 2013
Title
Size Document Number Rev
Date: Sheet of
System power
1.0
MSD3393
Custom
1 9 Sunday, July 14, 2013
Title
Size Document Number Rev
Date: Sheet of
System power
1.0
MSD3393
Custom
1 9 Sunday, July 14, 2013
R4
200R/0402/5%
C11
0.1uF/0402/16V/NC
R19
200R/0402/5%
CN1
CON14/PIN=2.5MM
1
2
3
4
5
6
7
8
9
10
11
12
13
14
H5
NC
1
C12
1uF/0402/16V
R159
10K/0402/5%
C8
2.2nF/0402/16V
Q2
3904/SOT-23
1
2
3
R200
4.7K/0402/5%
C23
0.1uF/0402/16V
R16
4.7K/0402/5%
U2
4953/SOP8
S1
1
G1
2
S2
3
G2
4
D1
8
D1
7
D2
6
D2
5
H6
NC
1
FB1
0R/1206/5%
R20
100K/0402/5%
H2
NC
1
2
3
4
5
6
7
8
9
L2
22uH_3A
C17
10uF/16V/0805
C29
0.1uF/0402/16V
H7
NC
1
R11
22K/0402/5%
R24
22K/0402/5%
L7 22uH_3A
C1
0.1uF/0402/16V
C28
2.2uF/0603/16V
R25
470R/0402/5%
R21
100K/0402/5%
H1
NC
1
2
3
4
5
6
7
8
9
C5
1nF/0402/16V/NC
C19
0.1uF/0402/16V
R17
10K/0402/5%
C2
10uF/16V/0805
A
D
J
O
U
T
IN
U5
AMS1117-3.3
3 2 1
4
C85
1nF/0402/16V
R1 100K/0402/5%
+
CA3
470uF/16V/EC3.5
FB5
0R/1206/5%/NC
C13
10uF/16V/0805
FB6
0R/1206/5%/NC
C21
10pF/0402/16V
C20
0.1uF/0402/16V
C27
0.1uF/0402/16V
C9
0.1uF/0402/16V/NC
R5 51K/0402/1%
R6
10K/0402/5%/NC
C3
10uF/16V/0805
FB2
0R/1206/5%
C6
0.1uF/0402/16V
FB7 0R/0402/5%/NC
R15
22K/0402/5%
R10 9.1K/0402/1%
R18
4.7K/0402/1%
C14
10uF/16V/0805
Q4
3904/SOT-23
1
2
3
C22
2.2uF/0603/16V
R8
100R/0402/5%
D5
1N4148
R3 27K/0402/5%/NC
R12
100K/0402/5%
C15
10uF/16V/0805
H9
NC
1
2
3
4
5
6
7
8
9
C18
10uF/16V/0805
C104
0.1uF/0402/16V/NC
R14
20R/0402/5%
H4
NC
1
2
3
4
5
6
7
8
9
R7
20K/0402/5%
C25
2.2uF/0603/16V
C16
10uF/16V/0805
Q3
3904/SOT-23
1
2
3
C4
0.1uF/0402/16V
R23
100K/0402/5%
R22
10K/0402/1% or 8.2K/0402/1%
R26
220R/0402/5%/470R/0402/5%
R9
10K/0402/5%
C10
0.1uF/0402/16V
C24
0.1uF/0402/16V
FB9
0R/1206/5%
R193
10K/0402/5%/NC
C7
0.1uF/0402/16V/NC
C26
2.2uF/0603/16V
R27
100R/0402/5%
A
D
J
O
U
T
IN
U4
AMS1117-Adj
3 2 1
4
R199
4.7K/0402/5%
U3
MP1470
FB
4
SW
2
IN
3
GND
1
EN
5
BST
6
Q1
3904/SOT-23
1
2
3
H3
NC
1
2
3
4
5
6
7
8
9
U1
AOZ3015PI/SOP8
EN
7
FB
5
VIN
2
AGN
D
3
PGND
1
VCC
4
Vo
8
COMP
6
LX
9
FB8
0R/1206/5%
R13
100K/0402/5%