A
A
B
B
C
C
D
D
E
E
1
1
2
2
3
3
4
4
To main board
STBY
OPEN/CLOSE
REFM
12VA
REFM
USB_VCC
USB_VCC
USB_DP
USB_DM
MP3_R
MP3_L
KEY_POW
MIC
VFD_CLK
GRID[1:7]
GRID1
GRID6
GRID5
SEG4
GRID4
GRID3
GRID2
SEG1
SEG2
SEG5
SEG3
GRID7
SEG6
GRID3
GRID2
GRID4
SEG5
SEG6
VFD_DATA
SEG3
KEY1
SEG1
SEG[1:6]
12VA
VFD_STB
KEY2
GRID1
USB_DM
USB_DP
GRID5
GRID6
GRID7
SEG2
KEY_POW
VFD_DATA
OPEN/CLOSE
MP3_R
MP3_L
VFD_CLK
IR_IN
VFD_STB
MIC
OPEN/CLOSE
SEG4
IR_IN
MIC_Detect
MIC_Detect
A
A
A
A
A
A
A
A
A
A
A
+12V
A
+5V
+5V
3.3V_STBY
3.3V_STBY
3.3V_STBY
+5V
3.3V_STBY
3.3V_STBY
+5V
+12V
+5V
+5V
A
A
R653
10K
R653
10K
C778
47pF/50V/NP0
C778
47pF/50V/NP0
S611 STOP
S611 STOP
R23
10K
R23
10K
+
-
U602A
AS4558M
+
-
U602A
AS4558M
3
2
1
8
4
R643
110K
R643
110K
R697
1K
R697
1K
R646
22K
R646
22K
R644
1K
R644
1K
C779
47pF/50V/NP0
C779
47pF/50V/NP0
S609 STOP
S609 STOP
C
283
NC/
100pF/
50V/
NP0
C
283
NC/
100pF/
50V/
NP0
R705
4.7K
R705
4.7K
R650
1K
R650
1K
R657
1K
R657
1K
XP15
18PIN/1.0mm
XP15
18PIN/1.0mm
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
R612
680
R612
680
C767
0.1uF/50V/Y5V
C767
0.1uF/50V/Y5V
R5
100
R5
100
R642
100K
R642
100K
D5
NC/33pF/50V/NP0
D5
NC/33pF/50V/NP0
R27
10K
R27
10K
S613 STOP
S613 STOP
+
CE610
2.2uF/25V
+
CE610
2.2uF/25V
+
47uF/16V
CE611
+
47uF/16V
CE611
LED1
LED_RED
LED1
LED_RED
Q1
NPN_3DG3904M
Q1
NPN_3DG3904M
C
251
NC/
100pF/
50V/
NP0
C
251
NC/
100pF/
50V/
NP0
R692
NC/0
R692
NC/0
DP1
LED_J2810AG
DP1
LED_J2810AG
GRID1
1
GRID2
2
GRID3
3
GRID4
4
GRID5
5
GRID6
6
GRID7
7
SEG1
8
SEG2
9
SEG3
10
SEG4
11
SEG5
12
SEG6
13
R640
1K
R640
1K
U301
DRIVER_LED_ET6202
U301
DRIVER_LED_ET6202
OSC
1
DI/O
2
CLK
3
STB
4
KEY1
5
KEY2
6
VDD
7
SEG1/KS1
8
SEG2/KS2
9
SEG3/KS3
10
SEG4/KS4
11
SEG5/KS5
12
SEG6/KS6
13
SEG7/KS7
14
GND
28
GRID1
27
GRID2
26
GND
25
GRID3
24
GRID4
23
GND
22
VDD
21
SEG14/GRID5
20
SEG13/GRID6
19
SEG12/GRID7
18
SEG10/KS10
17
SEG9/KS9
16
SEG8/KS8
15
C
303
NC/
100pF/
50V/
NP0
C
303
NC/
100pF/
50V/
NP0
S614 STOP
S614 STOP
C618
47pF/50V/NP0
C618
47pF/50V/NP0
R317
1K
R317
1K
R4
0
R4
0
R703
4.7K
R703
4.7K
C610
100pF/50V/NP0
C610
100pF/50V/NP0
C
329
NC/
100pF/
50V/
NP0
C
329
NC/
100pF/
50V/
NP0
S608 STOP
S608 STOP
R319
4.7K
R319
4.7K
C626
47pF/50V/NP0
C626
47pF/50V/NP0
C607
1000pF/50V/X7R
C607
1000pF/50V/X7R
R638
10K
R638
10K
R648
10K
R648
10K
C772
0.1uF/50V/Y5V
C772
0.1uF/50V/Y5V
C
347
NC/
100pF/
50V/
NP0
C
347
NC/
100pF/
50V/
NP0
R649
20K
R649
20K
R321
1K
R321
1K
+
47uF/16V
CE609
+
47uF/16V
CE609
C774
100pF/50V/NP0
C774
100pF/50V/NP0
C
257
NC/
100pF/
50V/
NP0
C
257
NC/
100pF/
50V/
NP0
S612 STOP
S612 STOP
C773
NC/100pF/50V/NP0
C773
NC/100pF/50V/NP0
R645100K
R645100K
C777
0.1uF/50V/Y5V
C777
0.1uF/50V/Y5V
R610
22K
R610
22K
D6
NC/33pF/50V/NP0
D6
NC/33pF/50V/NP0
C
255
NC/
100pF/
50V/
NP0
C
255
NC/
100pF/
50V/
NP0
JACK602
6PIN/H-
Ɏ
DIP3.5-09
JACK602
6PIN/H-
Ɏ
DIP3.5-09
1
1
2
2
3
3
4
4
5
5
6
6
R694
51K
R694
51K
R709
1.2K
R709
1.2K
C623
2.2uF/16V/Y5V
C623
2.2uF/16V/Y5V
R658
100
R658
100
C611
47pF/50V/NP0
C611
47pF/50V/NP0
+
CE612
220uF/16V
+
CE612
220uF/16V
C775
100pF/50V/NP0
C775
100pF/50V/NP0
C
250
NC/
100pF/
50V/
NP0
C
250
NC/
100pF/
50V/
NP0
IR601
IRM_14mm
IR601
IRM_14mm
IR
1
GND
2
VCC
3
GND
4
GND
5
C
242
NC/
100pF/
50V/
NP0
C
242
NC/
100pF/
50V/
NP0
R710
1.2K
R710
1.2K
C617
1uF/25V/Y5V
C617
1uF/25V/Y5V
R704
4.7K
R704
4.7K
R609
2.2K
R609
2.2K
JACK601
6PIN/H-
Ɏ
DIP3.5-09
JACK601
6PIN/H-
Ɏ
DIP3.5-09
1
1
2
2
3
3
4
4
5
5
6
6
C
249
NC/
100pF/
50V/
NP0
C
249
NC/
100pF/
50V/
NP0
+
-
U602B
AS4558M
+
-
U602B
AS4558M
5
6
7
8
4
C776
100pF/50V/NP0
C776
100pF/50V/NP0
R696
1K
R696
1K
P802
4PIN/2mm
P802
4PIN/2mm
VCC
1
D-
2
D+
3
GND
4
Shell B
6
Shell A
5
R2
0
R2
0
S610 STOP
S610 STOP
R656
10K
R656
10K
R14
100
R14
100
XS604
4PIN/2.0mm/200mm
XS604
4PIN/2.0mm/200mm
1
1
2
2
3
3
4
4
JACK603
6PIN/H-
Ɏ
DIP3.5-09
JACK603
6PIN/H-
Ɏ
DIP3.5-09
1
1
2
2
3
3
4
4
5
5
6
6
R6
0
R6
0
R7
NC/0
R7
NC/0
R1
0
R1
0
C625
2.2uF/16V/Y5V
C625
2.2uF/16V/Y5V
R3
0
R3
0
R8
0
R8
0
7-1
7-1
Front Control Board Circuit Diagram:
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