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GTK-XB90
GTK-XB90
29
29
5-7. SCHEMATIC DIAGRAM - MAIN Board (4/8) -
To BT Board
power key
STB_3.3V
STB_3.3V
MCU_3.3V
MCU_3.3V
3.3V_D1
3.3V_D1
5V_D2
MCU_3.3V
M
CU_
3.
3V
MCU_3.3V
MCU_3.3V
MCU_3.3V
MCU_3.3V
MCU_3.3V
M
CU_
3.
3V
MC
U
_3
.3
V
STB_3.3V
STB_5V
MCU_3.3V
MCU_3.3V
MCU_3.3V
MCU_3.3V
3.3V_D1
STB_3.3V
STB_3.3V
BAT
PW
PW
AMP_3.3V
STB_3.3V
MCU_3.3V
1
3
2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
46
47
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
1
3
2
5
4
6
7
8
9
10
11
12
13
14
15
16
26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
17
18
19
20
21
22
23
24
25
42 43 44 45 46 47 48 49 50
59
58
57
56
55
54
53
52
51
84 83 82 81 80 79 78 77 76
0.1uF/50V/X7R
0.1uF/50V/X7R
1
2
3
4
12PIN/1.0mm
12PIN/1.0mm
1
2
3
4
5
6
7
8
9
10
11
12
NC/10UF/16V/X5R
NC/10UF/16V/X5R
1
10
11
12
13
14
15
16
17
18
19
20
2
3
4
5
6
7
8
9
1
3
2
R
390
33
R
390
33
C345
0.
1U
F
C345
0.
1U
F
D11
BAT54C
D11
BAT54C
R171
300
R171
300
R37
100K
R37
100K
XP35
45PIN/0.5MM
XP35
45PIN/0.5MM
C
164
N
C
/100pF/
50V/
N
P
0
C
164
N
C
/100pF/
50V/
N
P
0
C
131
N
C
/100pF/
50V/
N
P
0
C
131
N
C
/100pF/
50V/
N
P
0
C
241
1
0
P
F
/5
0
V
/NP
O
C
241
1
0
P
F
/5
0
V
/NP
O
R161
100K
R161
100K
TM4
TM4
BT_TX1
BT_TX1
R240
120K/0.5%
R240
120K/0.5%
C
149
N
C
/100pF/
50V/
N
P
0
C
149
N
C
/100pF/
50V/
N
P
0
C
237
1
0
P
F
/5
0
V
/NP
O
C2
37
1
0
P
F
/5
0
V
/NP
O
R113
1M
R113
1M
R215
100
R215
100
FB35
220
FB35
220
R
393
33
R
393
33
C307
1UF
C307
1UF
FB29
70/3A
FB29
70/3A
C1
29
1
0
P
F
/5
0
V
/NP
O
C1
29
1
0
P
F
/5
0
V
/NP
O
R153
33
R153
33
TM5
TM5
R141
1K
R141
1K
GND1
GND1
R244
R244
8.2K
R142
4.7K
R142
4.7K
R52
33
R52
33
FB32
220
FB32
220
C151
NC/
15pF/
50V/
NP0
C151
NC/
15pF/
50V/
NP0
C
165
N
C
/100pF/
50V/
N
P
0
C
165
N
C
/100pF/
50V/
N
P
0
C
132
N
C
/100pF/
50V/
N
P
0
C
132
N
C
/100pF/
50V/
N
P
0
C548
0.1UF
C548
0.1UF
C121
4.7uF
C121
4.7uF
C
150
N
C
/100pF/
50V/
N
P
0
C
150
N
C
/100pF/
50V/
N
P
0
R155
33
R155
33
C2
38
1
0
P
F
/5
0
V
/NP
O
C2
38
1
0
P
F
/5
0
V
/NP
O
R154
10K
R154
10K
R40
4.7K
R40
4.7K
C347
0.
1U
F
C347
0.
1U
F
R53
33
R53
33
R
251
10K
R
251
10K
C152
NC/
15pF/
50V/
NP0
C152
NC/
15pF/
50V/
NP0
R
403
33
R
403
33
UART7_TX1
UART7_TX1
R42
2.2K
R42
2.2K
FB50
500/800mA
FB50
500/800mA
R591
10K
R591
10K
Q8
NPN_3DG3904M
Q8
NPN_3DG3904M
C
122
10uF/
6.
3V/
X5R
C
122
10uF/
6.
3V/
X5R
C1
14
10PF/
5
0V/
NPO
C
114
10PF/
5
0V/
NPO
U18
STM32F091VC
U18
STM32F091VC
C
134
N
C
/100pF/
50V/
N
P
0
C
134
N
C
/100pF/
50V/
N
P
0
R592
10K
R592
10K
C
168
N
C
/100pF/
50V/
N
P
0
C
168
N
C
/100pF/
50V/
N
P
0
C
155
N
C
/100pF/
50V/
N
P
0
C
155
N
C
/100pF/
50V/
N
P
0
R70
4.7K
R70
4.7K
C156
NC/
15pF/
50V/
NP0
C156
NC/
15pF/
50V/
NP0
R114
27K
R114
27K
R589
10K
R589
10K
R41
4.7K
R41
4.7K
C167
100pF/
50V/
N
P0
C167
100pF/
50V/
N
P0
R159
100K
R159
100K
R121
33
R121
33
R
162
470K
R
162
470K
220uF/
16V
C
E
18
220uF/
16V
C
E
18
Q48
N_2SK3018
Q48
N_2SK3018
C
210
12PF
C
210
12PF
R54
4.7K
R54
4.7K
UART2_
RX1
UART2_
RX1
R128
100
R128
100
R
147
33
R
147
33
R46
33
R46
33
R408
10K
R408
10K
R172
300
R172
300
C344
0.
1U
F
C344
0.
1U
F
C
169
N
C
/100pF/
50V/
N
P
0
C
169
N
C
/100pF/
50V/
N
P
0
C112
27pF/50V/NP0
C112
27pF/50V/NP0
C341
0.
1U
F
C341
0.
1U
F
Q9
NPN_3DG3904M
Q9
NPN_3DG3904M
C1
25
10PF/
5
0V/
NPO
C
125
10PF/
5
0V/
NPO
R45
2.2K
R45
2.2K
R
394
33
R
394
33
UART2_
TX1
UART2_
TX1
R74
4.7K
R74
4.7K
R55
4.7K
R55
4.7K
C
137
N
C
/1
00pF/
50V/
N
P0
C
137
N
C
/100pF/
50V/
N
P
0
R49
33
R49
33
C
213
12PF
C
213
12PF
R135
1K
R135
1K
R127
33
R127
33
Q10
PNP_MMBT8550C
Q10
PNP_MMBT8550C
SW1001
TS-1806
SW1001
TS-1806
FB45
70/3A
FB45
70/3A
UART7_RX1
UART7_RX1
C
170
N
C
/100pF/
50V/
N
P
0
C
170
N
C
/100pF/
50V/
N
P
0
C
118
N
C
/100pF/
50V/
N
P
0
C
118
N
C
/100pF/
50V/
N
P
0
R138
1K
R138
1K
C182
0.1uF/16V/X7R
C182
0.1uF/16V/X7R
C342
0.
1U
F
C342
0.
1U
F
R248
1M/0.5%
R248
1M/0.5%
R137
1K
R137
1K
R56
33
R56
33
C2
7
10uF/
16V/
X
5R
C
27
10uF/
16V/
X
5R
C
144
N
C
/100pF/
50V/
N
P
0
C
144
N
C
/100pF/
50V/
N
P
0
C1
30
10PF/
5
0V/
NPO
C
130
10PF/
5
0V/
NPO
C60
C60
R245
100K
R245
100K
C
138
N
C
/100pF/
50V/
N
P
0
C
138
N
C
/100pF/
50V/
N
P
0
C113
30pF/50V/NPO
C113
30pF/50V/NPO
XP9
4PIN/2.0mm
XP9
4PIN/2.0mm
R399
33
R399
33
Y3
14.7456MHz/30PPM
Y3
14.7456MHz/30PPM
R232
2.7K/0.5%
R232
2.7K/0.5%
R163
100K
R163
100K
R61
33
R61
33
C2
4
N
C
/100pF/
50V/
N
P
0
C2
4
N
C
/100pF/
50V/
N
P
0
R129
33
R129
33
C231
100pF/
50V/
N
P
0
C231
100pF/
50V/
N
P
0
C
207
12PF
C
207
12PF
FB33
220
FB33
220
XP7
XP7
R157
100K
R157
100K
R
156
33
R
156
33
R249
1M/0.5%
R249
1M/0.5%
C9
9
0.
1uF/
25V/
X
5R
C
99
0.
1uF/
25V/
X
5R
C34
1uF
C34
1uF
C94
C94
R201
1M
R201
1M
R38
10K
R38
10K
C
139
N
C
/100pF/
50V/
N
P
0
C
139
N
C
/100pF/
50V/
N
P
0
U27
74LVC244
U27
74LVC244
AC_ON_OFF1
AC_ON_OFF1
C
128
N
C
/100pF/
50V/
N
P
0
C
128
N
C
/100pF/
50V/
N
P
0
R
385
10K
R
385
10K
R158
1M
R158
1M
C
160
N
C
/100pF/
50V/
N
P
0
C
160
N
C
/100pF/
50V/
N
P
0
D4
LL4148
D4
LL4148
C
146
N
C
/100pF/
50V/
N
P
0
C
146
N
C
/100pF/
50V/
N
P
0
FB48
500/800mA
FB48
500/800mA
R267
100
R267
100
R205
4.7K
R205
4.7K
C35
1uF
C35
1uF
Q49
N_2SK3018
Q49
N_2SK3018
R132
4.7K
R132
4.7K
C
159
N
C
/100pF/
50V/
N
P
0
C
159
N
C
/100pF/
50V/
N
P
0
C1040
1000pF/50V/X7R
C1040
1000pF/50V/X7R
R250
120K/0.5%
R250
120K/0.5%
R39
10K
R39
10K
R210
1M
R210
1M
C232
1000pF/
50V/
X
7R
C232
1000pF/
50V/
X
7R
R170
300
R170
300
C1041
1000pF/50V/X7R
C1041
1000pF/50V/X7R
C1
24
1
0
P
F
/5
0
V
/NP
O
C1
24
1
0
P
F
/5
0
V
/NP
O
R50
33
R50
33
FB34
220
FB34
220
C
143
N
C
/100pF/
50V/
N
P
0
C
143
N
C
/100pF/
50V/
N
P
0
R
160
10K
R
160
10K
D10
BAT54C
D10
BAT54C
R392
33
R392
33
C
162
N
C
/100pF/
50V/
N
P
0
C
162
N
C
/100pF/
50V/
N
P
0
C
103
N
C
/100pF/
50V/
N
P
0
C
103
N
C
/100pF/
50V/
N
P
0
Q2
N
P
N
_3D
G
3904M
Q2
NPN_
3DG3
90
4M
R956
1K
R956
1K
C
148
N
C
/100pF/
50V/
N
P
0
C
148
N
C
/100pF/
50V/
N
P
0
R391
33
R391
33
R213
2.7K/0.5%
R213
2.7K/0.5%
R51
33
R51
33
R243
220K
R243
220K
C
119
1
0
P
F
/5
0
V
/NP
O
C
119
1
0
P
F
/5
0
V
/NP
O
BT_RX1
BT_RX1
C157
NC/
15pF/
50V/
NP0
C157
NC/
15pF/
50V/
NP0
C1
26
1
0
P
F
/5
0
V
/NP
O
C1
26
1
0
P
F
/5
0
V
/NP
O
R211
120K/1%
R211
120K/1%
R
386
10K
R
386
10K
C
104
N
C
/100pF/
50V/
N
P
0
C
104
N
C
/100pF/
50V/
N
P
0
Close to MCU
Close to MCU
SWDIO
SWCLK
MCU_RST
YI
YO
BT_LRCK
BT_DATA
LED-SDA
LED-SCL
LED_SHDNN
WHITE_LED
YI
YO
MCU_RST
SW
CLK
SWDIO
MCU_RX
MCU_TX
MC
U
_T
X
MC
U
_R
X
BT_RX
LED-SDA
LED-SCL
I2C1_SCL
I2C1_SDA
I2C
2_SC
L
I2C
2_SD
A
I2C2_SCL
I2C2_SDA
MCU_TX1
MCU_RX1
NFC_BT
BT_RESET
LE
D_
SHDNN
WH
IT
E_LED
BT_M
FB
Wireless WHITE_LED
STAMINA GREEN_LED
PW_LED
1
PW_LED
2
BT Bl
ue_LED
USB WHITE_LED
BASS RED_LED
L WHITE_LED
R WHITE_LED
AUX WHITE_LED
CHARGE ORANGE_LED
ADC_KEY2
ADC_KEY1
I2S_SEL1
I2S_SEL2
POWER_ON_OFF
Wired Green_LED
I2C
1_SC
L
I2C
1_SD
A
Charge_Current_CTL
STAT1
STAT2
EN
BT_RX
NFC_BT
BT_TX
BT_LRCK
BT_BCLK
BT_DATA
BT_RESET
NFC_INT0
BT_DP
BT_MFB
BT Blue_LED
AUX WHITE_LED
USB WHITE_LED
CHARGE ORANGE_LED
L WHITE_LED
R WHITE_LED
BASS RED_LED
Wireless WHITE_LED
POWER_KEY
PW_LED1
ADC_KEY2
ADC_KEY1
PW_LED2
STAMINA GREEN_LED
NFC_
INT
MCU_RST
BT_TX
BT_BCLK
NFC_11
NFC_INT0
NFC_INT0
NFC_INT
EN
POWER_ON_OFF
POWER_KEY
BAT__Ctr
STAT1
STAT2
Charge_Current_CTL
BAT__Ctr
BT_DM
NTC_DET
CE_1
PG_1
CE_1
PG_1
BT_RX
BT_TX
Wired PARTY CHAIN
KNOB2
Bat_Det
NTC
BUSY
BUSY
I2S_SEL1
I2S_SEL2
PW_Det
NTC_DET
PW_D
et
Bat_Det
CHG_
E
N
POW
ER_EN
USB_EN
AM
P_M
U
TE
Party_Chain_SW
Y_Rest
Party_Chain_In
Party_Chain_Out
AUDIO_
M
UTE
Re
la
y_
EN
G_
INT
VALID
BT_DP
BT_DM
DATA1
LRCK1
BCLK1
BCLK3
LRCK3
DATA3
TAS_SDA
TAS_SCL
DSP_SDA
DSP_SCL
SAMP_SCL
SAMP_SDA
MPEG_TX
MPEG_RX
G_SDA
G_SCL
BM
_updat
e_EN
POW
ER_EN1
3.
3V_D
2_EN
5V_D
2_EN
USB_FAULT
MI
C
_D
E
T
Wired Green_LED
Wired PARTY CHAIN
AMUTE
AMP_RESET
KNOB2
PG
NTC
STAT1
STAT2
CE
Charge_Current_CTL
BAT__Ctr
BUSY
MCU_RST
+ +
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
GND
GND
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
PE2
PE4
PE3
PE6
PE5
VBAT
PC13
PC14_OSC32_IN
PC15_OSC32-OUT
PF9
PF10
PF0_OSC_IN
PF1_OSC_OUT
NRST
PC0
PC1
PA3 VSS VDD PA4 PA5 PA6 PA7 PC4 PC5 PB0 PB1 PB2 PE7 PE8 PE9 PE10
PD13
PD14
PD15
PC6
PC7
PC8
PC9
PA8
PA9
PA10
PA11
PA12
PA13
PF6
VSS
VDDIO2
PD4
PD5
PD6
PD7
PB3
PB4
PB5
PB6
PB7
PF11-BOOT0
PB8
PB9
PE0
PE1
VSS
VDD
PC2
PC3
PF2
VSSA
VDDA
PF3
PA0
PA1
PA2
PE11 PE12 PE13 PE14 PE15 PB10 PB11 VSS VDD
PD12
PD11
PD10
PD9
PD8
PB15
PB14
PB13
PB12
PD3 PD2 PD1 PD0
PC12 PC11 PC10 PA15 PA14
G
D
S
1
2
3
4
1
2
3
4
5
6
7
8
9
10
11
12
OE1
GND
2A3
1Y3
2A2
1Y2
2A1
1Y1
2A0
1Y0
OE2
VCC
1A0
2Y0
1A1
2Y1
1A2
2Y2
1A3
2Y3
G
D
S
A
E
D
B
C
1
2
3
4
5
6
7
8
9
(4/8)
MAIN BOARD
F
SYS SET
2020/08/20 22:42:53 (GMT+09:00)