Skyworth 7M02B, Service Manual

Page: 23 / 35

Skyworth RGB R&D Centre Technical Document
23/35
Page2 Amp
HS
HS2
HEAT SINK
1505-M0090090-02
GND
GND
AMP_PDN#
SPK_L+
SPK_R+
L
R
TAS5707 AMP
AMP_RST#
C0A9
470nF
Close to SOC IC
C7A1
4.7nF
U0A1
TAS5707PHPR
OUT_A
1
PVD
D_A
2
PVD
D_A
3
BST_A
4
GVDD_OU
T
5
SSTI
ME
R
6
OC_ADJ
7
NC8
8
AVS
S
9
PLL_FLTM
10
PLL_FLTP
11
VR_A
NA
12
AVDD
13
/FAULT
14
MCLK
15
OSC_RES
16
DVSS
17
VR_DIG
18
/PDN
19
LRCLK
20
SCLK
21
SDIN
22
SDA
23
SCL
24
/RE
SET
25
/S
TEST
26
DVDD
27
DVS
S
28
GND
29
AGND
30
VRE
G
31
GVDD_OU
T
32
BST_D
33
PVD
D_D
34
PVD
D_D
35
OUT_D
36
PGND_CD
37
PGND_CD
38
OUT_C
39
PVDD_C
40
PVDD_C
41
BST_C
42
BST_B
43
PVDD_B
44
PVDD_B
45
OUT_B
46 PGND_AB
47
PGND_AB
48
GND
49
C2A0
330pF
C9A5
100nF
C8A6
470nF
C0A6
100nF
C1A9
22pF
C8A1
47nF
C0A3
100nF
R6A4
NC/0Ω
C1A4
1nF
C8A4 33nF
C0A5
10uF
C1A1
10uF
C8A9
100nF
C1A8
22pF
R6A6
22Ω
C9A7
100nF
C8A3 1uF
R7A7
22Ω
C8A8
1nF
C9A4
1nF
C0A7
1uF
C9A6
4.7uF
RN1
C8A7
NC/470nF
C9A3 33nF
R6A5 18.2KΩ
L0A1
22UH
C1A5
100nF
R6A2
22Ω
R5A2
22.1KΩ
C9A1
100nF
C0A2
1nF
C8A5
330pF
C1A7
470nF
R6A1
470Ω
R7A8
22Ω
C8A2
47nF
FB1A2
60Ω/100MHz
C9A9
330pF
L0A2
22UH
C0A4
100nF
C0A8
33nF
C9A8
470nF
C7A3
4.7nF
C9A2
22pF
L0A3
22UH
C7A2 NC/2.2nF
C1A3
33nF
L0A4
22UH
F0A1
5A/32V
6000-500429-T0
R6A3
10KΩ
LN1
RP1
C0A1
330pF
VDD_AMP
LP1
C0A0
NC/470nF
+3.3V_AMP
R5A1
470Ω
+3.3V_AMP
+3.3V_AMP
VDD_AMP
VDD_AMP
VDD_AMP
+12V_Normal
+3.3V_Normal
VDD_AMP
+3.3V_AMP
I2C-SDA
I2C-SCL
I2S_DATA_OUT
I2S_BCK_OUT
I2S_LRCK_OUT
I2S_MCK_OUT
I2S_LRCK_OUT
I2S_MCK_OUT
I2C-SDA
I2C-SCL
I2S_BCK_OUT
I2S_DATA_OUT
R5A26
10KΩ
AMP-PRout
AMP-PLout
Q5A10
2N7002E
G
1
D
2
S
3
Q5A9
2N7002E
G
1
D
2
S
3
Q5A7
2N7002E
G
1
D
2
S
3
Q5A6
2N7002E
G
1
D
2
S
3
R5A27
10KΩ
Q5A8
KMBT3904
1
2
3
NC/CN_M
CN30
1
2
3
4
NC/CN_M
CN31
1
2
3
4
+12V_Normal
SPK_R+
SPK_R-
SPK_L+
SPK_L-
PWD_EN
C2A4
10nF C2A3
10nF
EARPHONE/LINE OUT
R1A00
NC/22KΩ
EARPHONE-OUTL
EARPHONE-OUTR
AMP-PLout
DET1
1
LO_EA
R1
1
AMP-PRout
GND_EAR1
1
RO_EAR1
1
HP_DET
R9A9
4.7KΩ
HP_DET
R9A6
100Ω
JA1A1
EPHONE SOCKET
1
2
5
3
4
R9A8 NC/10KΩ
R9A4
0Ω
Q0A9
NC/KMBT3904 1
2
3
R9A12
NC/0Ω
R7A6
100Ω
R7A5 100Ω
C2A14
22uF
R9A10
NC/0Ω
+12V_Normal +5V_Normal
D2A2
BAV70
1
2
3
AMP_RST=0 MUTE
静音电路
MUTE CONTROL
AMP_MUTE=0 MUTE
+3.3V_Standby
L :Normal
H :Mute
HP-MUTE-M
HP-MUTE-M
R9A2
0Ω
R9A11
20KΩ
C2A13
22uF
Q1A1
MMBT3906
B
1
E
2
C
3
R1A03
150KΩ
C1A48
2.2uF
R9A7
470KΩ
R1A02
470KΩ
D0A6
1N4148W
R2A1
1KΩ
4100-CA1020-T7
R9A1
0Ω
PWD_EN
R6A7 NC/10KΩ
+3.3V_Normal
C5A10
NC/10uF
C3A3
1uF
R7A28
NC/1KΩ
R7A27
NC/1KΩ
C1A49
NC/2.2uF
AMP_PDN#
R6A8
10KΩ
R7A25
1KΩ
R7A26
1KΩ
C2A2
22pF
C2A1
22pF
RV1A3
ESD
R7A9
1KΩ
4100-CA1020-T7
H: ACTIVE
L: RESET
AMP_RST AMP_RST#
R0A13
NC/10KΩ
AMP-RST
RV1A5
ESD
RV1A4
ESD
CN-M
CN1A1
1
2
3
4
5
6
+
CE1A1
220uF
+
CE1A2
220uF
+
CE1A3
220uF
R7A1 22Ω
R7A2 22Ω
R7A4 22Ω
R7A3 22Ω
AMP_MUTE
AMP_PDN#
AMP_MUTE
R4A4
4.7KΩ
R0A2
NC/10KΩ
+3.3V_Standby
插耳机
L
I2C-SDA
I2C-SCL
I2S_DATA_OUT
I2S_LRCK_OUT
I2S_DATA_OUT
I2S_BCK_OUT
I2S_LRCK_OUT
I2C-SDA
I2C-SCL
I2S_BCK_OUT
I2S_MCK_OUT
I2S_MCK_OUT
AMP_MUTE
AMP-RST
AMP_MUTE
AMP_RST
EARPHONE-OUTL
EARPHONE-OUTR
EARPHONE-OUTL
EARPHONE-OUTR
HP_DET
HP-MUTE-M
HP_DET
HP-MUTE-M
FB0A3
60Ω/100MHz
SPK_R-
SPK_L-