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6. Schematic Diagram
6.2. FRONT
VOL+
VOL-
PO WER 4.56V
ENTER 2.64V
MAIN <=>
STOP 4.09V
FUNC 4.37 V
PLAY 3.64V
OP EN 0.47V
VFD
VFD_DR IVER
US B
REMOC ON
HT-D4500 S ER IES
FRONT VFD BOARD
VFDVP_- 30V
US B_P W
ST5.4V
VFD+_-22.7V
VFD-_-26. 1V
SDB3101_PF
30
FBD7
ST5. 4V
D5.0V_PW
USB_PW
D5.0V
VFD-
28V
VFD-
VFD+
D5.0V_PW
ST5. 4V
VFDVP_- 30V
VFD-_-26. 1V
VFD+_-2 2.7V
AD_KEY
REMC
D_P
D_N
VFD_C E
VFD_C LK
VFD_DO
AD_KEY
P
3
P
2
P
1
P
4
P
5
P
8
P
9
P
6
P
7
P 10
G4
G3
G2
G1
P
2
1
P
2
0
G5
G6
G7
P 16
P 14
P 11
P 12
P 13
P 17
P 15
P 19
P 18
P
4
P
1
3
P
1
4
P
2
0
P
9
G7
P
2
1
G1
P
1
1
G4
P
1
P
5
P
6
P
8
P
3
P
2
P
7
G3
G2
P
1
0
P
1
2
P
1
5
P
1
7
G6
P
1
9
P
1
8
P
1
6
G
5
D_P
D_N
1/10W
4.7KO HM
FR8
DGND
J TP 1280A6
S W8
1.8KO HM
1/10W
FR7
1/10W
1KOHM
FR6
1/10W
560OHM
FR5
J TP 1280A6
S W7
J TP 1280A6
S W6
J TP 1280A6
S W5
FC
Z10
0E-18SSK
CN1001
1
10
11
12
13
14
15
16
17
18
2
3
4
5
6
7
8
9
1/10W
470OHM
FR4
270OHM
1/10W
FR3
1/10W
220OHM
FR2
J TP 1280A6
S W4
J TP 1280A6
S W3
J TP 1280A6
S W2
56OHM
1/10W
FR1
J TP 1280A6
S W1
TP20
1F11
1F11
1A3
1D5
1D5
1D5
DGND
TP13
0.01O HM
*
FBD3
0.01O HM
*
OP TION
FBD5
11
MLVS-06 03- E08
UES D1
100UF
16V
UC13
20
RB551V-30TE-17
UD13
1C2
VFD_CE
VFD_CLK
1C2
VFD_GND
1/10W
100OHM
UR9
100OHM
1/10W
UR8
VFD_GND
1C2
VFD_DO
1/10W
100OHM
UR7
10KOHM
1/10W
UR6
82KOHM
1/10W
UR5
1/10W
10KOHM
UR2
10KOHM
1/10W
UR1
VFD_GND
1
B
6
1
B
6
1
B
6
1
B
6
PT6315A
UIC2
1
10
11
12
13
14
15
16
17
18
19
2
20
21
22
23
24
25
26
27
28
29
3
30
31
32
33
34
35
36
37
38
39
4
40
41
42
43
44
5
6
7
8
9
1
B
6
1
B
6
1
B
6
1
B
6
1
B
6
10UF
OP TION
50V
UC30
5
0
V
1
0
0
N
F
UC
29
1B6
100NF
50V
UC4
3
1
B
7
1
B
6
1
B
6
1
B
6
1
E
6
1
E
6
1
E
7
1
E
7
1
E
7
1
C
6
1
E
7
1
E
7
1
C
7
1
E
7
1
E
7
1
D
8
1
C
7
1
D
8
1
D
8
1
D
8
1
D
8
1
C
7
1
B
7
1
B
7
1
B
7
1
B
7
1
B
7
1B7
1B7
1B6
1B6
1B6
1B7
1B7
1B7
1B7
1
D
8
1
D
8
1
C
7
1
D
8
1
D
8
1
C
7
1
C
8
1
C
7
1
C
7
1
C
6
REMC
VFD_GND
VFD_D
ATA
VFD_C
LK
VFD_C
E
AD_KEY
OP TION
50V
10UF
UC1
100NF
50V
UC2
V_18
V_17
V_16
V_15
V_13
V_14
V_12
V_10
V_11
V_9
V_8
V_7
V_5
V_6
V_4
V_3
HNV-07SS83T
VFD
1
10
11
12
13
14
15
16
17
18
19
2
20
21
22
23
24
25
26
27
28
29
3
30
31
32
4
5
6
7
8
9
V_20
V_19
V_21
V_23
V_22
V_24
V_25
V_26
V_28
V_27
V_29
V_30
DGND
50V
10N
F
B
C
1
47UF
16V
BC5
1B2
1B2
0
RC
LA
M
P
0
5
02B
.T
C
T
D1
7
5
1
N
4
1
4
8
W
S
B
D
4
CG ND
1
N
4
1
4
8
W
S
7
5
B
D
3
1
0
0
N
F
5
0
V
B
C
4
UAS 21-4K5J 0A
US B
1
2
3
4
MGND1
MGND2
US B_V
D_N D_P
US B_G
CG ND
VFD_GND
1
/1
0
W
1
2
0
O
H
M
F
R
2
2
VFD+_-22.7V
2
2
K
O
HM
1
/1
0
W
F
R
2
1
S
D
Z
5V
1G
5.
1
F
Z
D
2
47OHM
1/10W
FR71
30
S DB3101_P F
FB
D2
0
DGND
*
1/10W
0.01OHM
FBD6
CG ND
DGND
100UF
16V
FC2
47NF
50V
FC1
DGND
M
L
V
S
-0603
-E
08
11
UE
S
D6
47OHM
1/10W
FR72
KS M-953T H4Y
RE M_EYE
1
2
3
M
G
N
D
1
M
G
N
D
2
DGND
1B2
RE MC
VFD_GND
OP TION
10UF
50V
UC3
5
0
V
1
0
0
N
F
UC4
SG
7
/KS
7
SG
6
/KS
6
SG
2
0
/G
R
9
SG
5
/KS
5
SG
4
/KS
4
S G19/GR10
SG
3
/KS
3
SG
2
/KS
2
SG
1
/KS
1
VD
D
S G16/KS 16
VS
S
S G17/GR12
S G18/GR11
VEE
K2
VD
D
VS
S
GR
2
GR
1
K1
STB
GR
4
GR
3
CLK
DIN
DOUT
OSC
SG
2
1
/G
R
8
LED4
SG
2
3
/G
R
6
SG
2
4
/G
R
5
SG
2
2
/G
R
7
LED3
LED2
LED1
S G10/KS 10
S G11/KS 11
S G14/KS 14
S G15/KS 15
S G12/KS 12
S G13/KS 13
SG
9
/KS
9
SG
8
/KS
8
F-
F-
1
G
P21
P20
P19
7
G
P18
P17
6
G
P16
P15
P14
5
G
P13
P12
P11
4
G
P10
P9
P8
3
G
P7
P6
2
G
P5
P4
P3
P2
P1
F+
F+
GND
VC
C
OUT
VOL+
VOL-
PO WER 4.56V
ENTER 2.64V
MAIN <=>
STOP 4.09V
FUNC 4.37 V
PLAY 3.64V
OP EN 0.47V
VFD
VFD_DR IVER
US B
REMOC ON
HT-D4500 S ER IES
FRONT VFD BOARD
VFDVP_-
30V
ST5.4V
VFD+_-22.7V
VFD-_-26. 1V
SDB3101_PF
30
ST5.
4V
D5.0V_PW
D5.0V_PW
ST5. 4V
VFDVP_- 30V
VFD-_-26. 1V
VFD+_-2 2.7V
1/10W
4.7KO HM
DGND
J TP 1280A6
1.8KO HM
1/10W
1/10W
1KOHM
1/10W
560OHM
J TP 1280A6
J TP 1280A6
J TP 1280A6
FC
Z10
0E-18SSK
1/10W
470OHM
270OHM
1/10W
1/10W
220OHM
J TP 1280A6
J TP 1280A6
J TP 1280A6
56OHM
1/10W
J TP 1280A6
DGND
0.01O HM
*
0.01O HM
*
OP TION
11
MLVS-06 03- E08
100UF 16V
20
RB551V-30TE-17
VFD_GND
1/10W
100OHM
100OHM
1/10W
VFD_GND
1/10W
100OHM
10KOHM
1/10W
82KOHM
1/10W
1/10W
10KOHM
10KOHM
1/10W
VFD_GND
PT6315A
10UF
OP TION
50V
5
0
V
1
0
0
N
F
100NF
50V
OP TION
50V
10UF
100NF
50V
HNV-07SS83T
DGND
50V
10N
F
47UF
16V
0
RC
LA
M
P
0
5
02B
.T
C
T
7
5
1
N
4
1
4
8
W
S
CG ND
1
N
4
1
4
8
W
S
7
5
1
0
0
N
F
5
0
V
UAS 21-4K5J 0A
CG ND
VFD_GND
1
/1
0
W
1
2
0
O
H
M
VFD+_-22.7V
2
2
K
O
HM
1
/1
0
W
S
D
Z
5V
1G
5.
1
47OHM
1/10W
30
S DB3101_P F
DGND
*
1/10W
0.01OHM
CG ND
DGND
100UF
16V
47NF
50V
DGND
M
L
V
S
-0603
-E
08
11
47OHM
1/10W
KS M-953T H4Y
DGND
VFD_GND
OP TION
10UF
50V
5
0
V
1
0
0
N
F
FBD7
D5.0V
VFD-
28V
VFD-
VFD+
FR8
S W8
FR7
FR6
FR5
S W7
S W6
S W5
CN1001
FR4
FR3
FR2
S W4
S W3
S W2
FR1
S W1
TP20
TP13
FBD3
FBD5
UES D1
UC13
UD13
UR9
UR8
UR7
UR6
UR5
UR2
UR1
UIC2
UC30
UC
29
UC4
3
REMC
VFD_GND
VFD_D
ATA
VFD_C
LK
VFD_C
E
AD_KEY
UC1
UC2
V_18
V_17
V_16
V_15
V_13
V_14
V_12
V_10
V_11
V_9
V_8
V_7
V_5
V_6
V_4
V_3
VFD
V_20
V_19
V_21
V_23
V_22
V_24
V_25
V_26
V_28
V_27
V_29
V_30
B
C
1
BC5
D1
B
D
4
B
D
3
B
C
4
US B
US B_V
D_ND_P
US B_G
F
R
2
2
F
R
2
1
F
Z
D
2
FR71
FB
D2
0
FBD6
FC2
FC1
UE
S
D6
FR72
RE M_EYE
UC3
UC4
1F11
1F11
1A3
1D5
1D5
1D5
1C2
1C2
1C2
1
B
6
1
B
6
1
B
6
1
B
6
1
B
6
1
B
6
1
B
6
1
B
6
1
B
6
1B6
1
B
7
1
B
6
1
B
6
1
B
6
1
E
6
1
E
6
1
E
7
1
E
7
1
E
7
1
C
6
1
E
7
1
E
7
1
C
7
1
E
7
1
E
7
1
D
8
1
C
7
1
D
8
1
D
8
1
D
8
1
D
8
1
C
7
1
B
7
1
B
7
1
B
7
1
B
7
1
B
7
1B7
1B7
1B6
1B6
1B6
1B7
1B7
1B7
1B7
1
D
8
1
D
8
1
C
7
1
D
8
1
D
8
1
C
7
1
C
8
1
C
7
1
C
7
1
C
6
1B2
1B2
1B2
US
B_P W
USB_PW
AD_KEY
REMC
D_P
D_N
VFD_C E
VFD_C LK
VFD_DO
AD_KEY
P
3
P
2
P
1
P
4
P
5
P
8
P
9
P
6
P
7
P 10
G4
G3
G2
G1
P
2
1
P
2
0
G5
G6
G7
P 16
P 14
P 11
P 12
P 13
P 17
P 15
P 19
P 18
P
4
P
1
3
P
1
4
P
2
0
P
9
G7
P
2
1
G1
P
1
1
G4
P
1
P
5
P
6
P
8
P
3
P
2
P
7
G3
G2
P
1
0
P
1
2
P
1
5
P
1
7
G6
P
1
9
P
1
8
P
1
6
G
5
D_P
D_N
VFD_CE
VFD_CLK
VFD_DO
RE MC
1
10
11
12
13
14
15
16
17
18
2
3
4
5
6
7
8
9
1
10
11
12
13
14
15
16
17
18
19
2
20
21
22
23
24
25
26
27
28
29
3
30
31
32
33
34
35
36
37
38
39
4
40
41
42
43
44
5
6
7
8
9
1
10
11
12
13
14
15
16
17
18
19
2
20
21
22
23
24
25
26
27
28
29
3
30
31
32
4
5
6
7
8
9
1
2
3
4
MGND1
MGND2
1
2
3
M
G
N
D
1
M
G
N
D
2
SG
7
/KS
7
SG
6
/KS
6
SG
2
0
/G
R
9
SG
5
/KS
5
SG
4
/KS
4
S G19/GR10
SG
3
/KS
3
SG
2
/KS
2
SG
1
/KS
1
VD
D
S G16/KS 16
VS
S
S G17/GR12
S G18/GR11
VEE
K2
VD
D
VS
S
GR
2
GR
1
K1
STB
GR
4
GR
3
CLK
DIN
DOUT
OSC
SG
2
1
/G
R
8
LED4
SG
2
3
/G
R
6
SG
2
4
/G
R
5
SG
2
2
/G
R
7
LED3
LED2
LED1
S G10/KS 10
S G11/KS 11
S G14/KS 14
S G15/KS 15
S G12/KS 12
S G13/KS 13
SG
9
/KS
9
SG
8
/KS
8
F
-
F
-
1
G
P2
1
P2
0
P1
9
7
G
P1
8
P1
7
6
G
P1
6
P1
5
P1
4
5
G
P13
P12
P11
4
G
P10
P9
P8
3
G
P7
P6
2
G
P5
P4
P3
P2
P1
F+
F+
GND
V
C
C
OUT
P
OWER
TP 1
6-2
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