SCH05 MAIN5 MCU&RTC & Connector
ANALOG AUDIO
DIGITAL AUDIO
MCU_RST
Close to MCU
Close to MCU
PB13=1 EU
PB13=0 JP
RTC
DC DET Circuit
PCON
BT_RESET
YI
YO
SWDIO
YI
YO
SWDIO
SWCLK
MCU_RST
AMP_FAULT
EEP_CLK
POWER_F
R
Q1
ADC_KEY1
EEP_SDA
PCON
MCU_RST
POWER_F
R
Q2
SW
C
LK
ADC_KEY2
BT_STANDBY_ON
POWER_FRQ1
POWER_FRQ2
RTC_SCL
TIME_ON/OFF
RTC_SDA
EAR_DET
AMP_FAULT
BT_STANDBY_ON
BT_RESET
AMP_MUTE
4052_SW1
4052_SW2
POWER_EN1
AMP_FAULT
POWER_FRQ1
POWER_FRQ2
BT_STATUS1_PAIR
BT_POWER_CONTROL
BT_FN1
RTC_SCL
RTC_SDA
LD_CURRENT
DC_DET
D
C
_DET
EEP_CLK
EEP_SDA
POWER_EN1
TIME_ON/OFF
STB_MCU_3V3
STB_MCU_3V3
STB_MCU_3V3
STB3.3V
STB_MCU_3V3
STB_M
CU
_3V3
STB_MCU_3V3
STB_M
CU
_3V3
STB3.3V
STB_MCU_3.3V
STB_MCU_3V3
STB_MCU_3V3
STB3V3
RTC3V3
STB_3V3
RTC3V3
RTC3V3
STB_MCU_3V3
STB3V3
SYS_3V3
SYS_5V
STB_3V3
STB_MCU_3V3
STB_MCU_3V3
STB_MCU_3V3
PCON
5
POWER_EN
EARPHONE_
M
U
TE
AMP_M
U
TE
AMP_MUTE
10
AMP_FAULT
10
BT_STANDBY_ON9
BT_RESET
9
4052_SW1
9
4052_SW2
9
POWER_EN1
5
POWER_FRQ1
7
POWER_FRQ2
7
BT_STATUS1_PAIR9
BT_POWER_CONTROL9
BT_FN1
9
RTC_SCL
6
RTC_SDA
6
LD_CURRENT
EAR_DET
VOL-
VOL+
BT_LED
ADC_KEY2
ADC_KEY1
IR_IN
LED_GRE LED_RED
POWER_KEY
BT_POWER_CONTROL
D
C
_F
req_cn
I2C_DET
BT_AU
D
IO_EN
BT_STAT
U
S1_PAIR
BT_F
N
1
4052_SW2
BT_STAN
D
BY_ON
4052_SW1
BT_STAT
U
S
M
CU
_8104_SDA
M
CU
_8104_CLK
Tuner_Power_SW
BT_POWER_SW
3
R145
10K
R131
10K
R359
1M
XP17
NC/2PIN/2.0mm
1
1
2
2
R135
4.7K
C138
100nF
C136
100nF
R130
1M
FB17
500Ω/800mA
R165
NC
R164
0
R137
4.7K
R134
1M
R162
33
C140
10UF/6
.3V/X5R
Y3
32.768KHz/30PPM
R168
100K
TP49
R153
10K
R163
1K
TP46
C148
0.1uF/16V/X7R
R157
10K
R132
10K
C135
100nF
C137
100nF
D5
LL4148
R350
10K
R140
1M
R143
NC/10K
+
47uF/16V
CE9
D4
LL4148
R133
NC/10K
R154
10K
Y4
NC/32.768KHz
C139
10UF/6
.3V/X5R
R34
1
33
FB16
500/800mA
C147
15pF/50V/NP0
R125
33
R142
1M
R146
10K
R360
1M
R144
NC/10K
R123 10K
XP8
NC/4PIN/2.0mm
1
1 2
2 3
3 4
4
R307
2.2
C145
0.1uF/16V/X7R
R152
4.7K
D8
LL4148
R129
1M
U11
EEPROM_16Kb_M24C16
A0
1
A1
2
A2
3
GND
4
SDA
5
SCL
6
WP
7
VCC
8
R345 33
C141
2.2UF/10V/X5R
R151
27K
U12
RTC_PCF8563
OSCI
1
OSCO
2
INT
3
VSS
4
SDA
5
SCL
6
CLKOUT
7
VDD
8
R147
33
R170
33
U10
STM32F030R8T6
VDD
1
PC14/OSC32_IN
3 PC13
2
PF0/OSC_IN
5 PC15/OSC32_OUT
4
PF1/OSC_OUT
6
NRST
7
PC0
8
PC1
9
PC2
10
PC3
11
VSSA
12
VDDA
13
PA0
14
PA1
15
PA2
16
PA3
17
PF4
18
PF5
19
PA4
20
PA5
21
PA6
22
PA7
23
PC4
24
PC5
25
PB0
26
PB1
27
PB2
28
PB10
29
PB11
30
VSS
31
VDD
32
PB12
33
PB13
34
PB14
35
PB15
36
PC6
37
PC7
38
PC8
39
PC9
40
PA8
41
PA9
42
PA10
43
PA11
44
PA12
45
PA13
46
PF6
47
PF7
48
PA14
49
PA15
50
PC10
51
PC11
52
PC12
53
PD2
54
PB3
55
PB4
56
PB5
57
PB6
58
PB7
59
BOOT0
60
PB8
61
PB9
62
VSS
63
VDD
64
R167
47K
C144
NC/30pF/50V/NP0
Q15
PNP_3CG3906M
C142
0.1uF/16V/X7R
D6
LL4148
C149
NC/10pF/50V/NP0
R361
1M
C146
10UF/10V/X7R
R139
10K
D7
LL4148
R343
1M
R149
33
R166
47K
R148
33
R12
4
33
R169
4.7K
R141
100K
R150
33
R128
1M
R136
47K
R349
10K
R12
6
33
TP47
R344
10K
C134
100nF
R160
NC/1K
R311
10K
R34
0
33
TP48
R138
10K
C143
NC/27pF/50V/NP0
TP45
R161
33
R304
10K
Before Servicing
This Unit
Electrical
Mechanical
Repair Information
Updating
13