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Front Control Board Circuit Diagram:
1
14PIN/1.0mm
14PIN/1.0mm
1
1
2
2
3
3
4
FB609
FB609
500/800mA
500/800mA
4
5
FB610
FB610
500/800mA
500/800mA
+12V
5
6
FB613
FB613
500/800mA
500/800mA
5V_STB
6
7
FB611
FB611
500/800mA
500/800mA
VSCLK
7
8
FB612
FB612
500/800mA
500/800mA
VSDA
8
9
FB614
FB614
500/800mA
500/800mA
VSTB
9
10
R641
R641
100
100
10
11
11
12
12
13
13
14
To main board
14
XP8
XP8
2
1
5701_SDA
1
2
5701_SCL
2
3
3
4
4
5
5
CON607
CON607
5PIN/2.0mm
5PIN/2.0mm
C614
C614
0.1uF/16V/Y5V
0.1uF/16V/Y5V
3
IR601
IR601
1
IR
IR
2
GND
3
VCC
4
C617
C617
+ CE606
+ CE606
GND
5
C618
C618
GND
0.1uF/16V/Y5V
0.1uF/16V/Y5V
47uF/16V
47uF/16V
IRM_14mm
IRM_14mm
47pF/50V/NP0
47pF/50V/NP0
P803
P803
6
DET
5
GND
4
R639
R639
GND
2
SIN
R640
R640
3
SGND
7
GND
8
GND
9
GND
1
GND
MIC JACK
MIC JACK
4
A
7-1
B
+5V
SDA_MCU
SCL_MCU
GND
-24V
5V_STB
R142
R142
18K
18K
IR
GND
Q139
Q139
MP3_R
NPN_3DG3904M
NPN_3DG3904M
MP3_L
C135
C135
1000pF/50V/X7R
1000pF/50V/X7R
R681
R681
150
150
5701_SCL
SCL_MCU
5701_SDA
SDA_MCU
+3.3V
R682
R682
150
150
C626
C626
C625
C625
10pF/50V/NP0
10pF/50V/NP0
10pF/50V/NP0
10pF/50V/NP0
+
+
CE610
CE610
47uF/16V
47uF/16V
FB616
FB616
500/200mA
500/200mA
A
R638
R638
100
100
+3.3V
R637
R637
10K
10K
5V_STB
R156
R156
1K
1K
+3.3V
ZD137
ZD137
BZX79C3V3
BZX79C3V3
100
100
MP3_R
1
1
100
100
2
2
MP3_L
3
3
3PIN/2.0mm/440mm
3PIN/2.0mm/440mm
XS605
XS605
R688
R688
R689
R689
47K
47K
47K
47K
To main board
B
C
+12V
AC2
R135
R135
470
470
R137
R137
R136
R136
10K
10K
R138
R138
Q135
Q135
2.2
2.2
NPN_3DG3904M
NPN_3DG3904M
Q136
Q136
470
470
NPN_3DG3904M
NPN_3DG3904M
C152
C152
0.1uF/50V/X7R
0.1uF/50V/X7R
CE138 3.3uF/50V
CE138
3.3uF/50V
R139
R139
470
470
R140
R140
Q138
Q138
NPN_3DG3904M
NPN_3DG3904M
R143
R143
4.7K
4.7K
Q137
Q137
ZD135
ZD135
PNP_3CG3906M
PNP_3CG3906M
BZX79C6V2
BZX79C6V2
R144
R144
R146
R146
10K
10K
R145
R145
10K
10K
1K
1K
-24V
R147
R147
1K
1K
+12V
R154
R154
1K
1K
+5V
R155
R155
1K
1K
ZD136
ZD136
C222
C222
R8
R8
BZX79C5V1
BZX79C5V1
4.7uF/16V/Y5V
4.7uF/16V/Y5V
0
0
R2
R2
VSDA
R162
R162
0
0
VSCLK
R163
R163
VSTB
R164
R164
5V_STB
LED1
LED1
LED_RED+WHITE
LED_RED+WHITE
R684
R684
R685
R685
10K
10K
2K
2K
10K
10K
Q620
Q620
Q621
Q621
R683
R683
NPN_3DG3904M
NPN_3DG3904M
NPN_3DG3904M
NPN_3DG3904M
+12V
R687
R687
20K
20K
R686
R686
10K
10K
A
C
7-1
D
E
VFD135
VFD135
-
-
R141
R141
5.6
5.6
AC1
AC2
330
330
-24V
CE135
CE135
R3
R3
R5
R5
R4
R4
3.3uF/50V
3.3uF/50V
0
0
0
0
0
0
U135
U135
34
22
G4
SEG8
35
21
G3
SEG7
36
20
G2
SEG6/K6
37
19
G1
SEG5/K5
38
18
VDD
SEG4/K4
39
DRIVER_VFD_CS6312EN
DRIVER_VFD_CS6312EN
17
LED4
SEG3/K3
40
16
LED3
SEG2/K2
R148
R148
41
15
LED2
SEG1/K1
C148
C148
51K
51K
42
14
LED1
VDD
0.1uF/50V/X7R
0.1uF/50V/X7R
43
13
GND
KEY4
44
12
OSC
KEY3
C223
C223
4.7uF/16V/Y5V
4.7uF/16V/Y5V
R157
R157
R158
R158
R159
R159
10K
10K
10K
10K
10K
10K
R6
R6
0
0
R171
R171
4.7K
4.7K
+5V
100
100
R1
R1
0
0
100
100
100
100
ESD1
ESD1
1
4
USB_VCC
USB_DP
2
3
USB_DM
PRTR5V0U2X
PRTR5V0U2X
XS604
XS604
01UUSBJAK-101
4PIN/2.0mm/200mm
4PIN/2.0mm/200mm
1
USB_VCC
USB_VCC
1
VCC
1
2
USB_DM
2
D-
2
3
USB_DP
USB_DM
3
D+
3
4
USB_DP
4
GND
4
To main board
USB-A/WT
USB-A/WT
P802
P802
D
E
1
+5V
2
3
4
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