1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
A
A
B
B
C
C
D
D
E
E
F
F
DVDR3375 Front Board Electrical Diagram
To Main Board
To Power Board
TO SWITCH BOARD
C1 B2
C1 B2
C2 B2
C3 B4
C4 B4
C5 B4
C6 B2
C7 B3
C8 C7
C9 C3
C17 D4
C16 C4
C11 C5
C15 C4
C12 C3
C14 C4
C20 D5
C19 D5
C26 E6
C21 D5
C28 E3
C24 D3
C27 E3
C18 D5
C31 C3
C30 B6
C34 B4
C32 D6
C36 E1
C33 B4
C35 B4
C29 B5
D7 D7
D1 B3
D2 B2
D5 C2
D9 E1
D8 C3
D6 D6
FB3 B4
FB11 C4
FB2 B4
FB1 C4
C10 C4
JP3 E5
JP1 B3
J1 E4
JP2 E3
K3 D6
K2 D6
K5 D6
K4 D6
K6 E6
LD1 E4
Q2 B1
Q3 B3
Q4 B2
Q5 B2
Q8 D2
Q7 D2
Q9 E1
R2 B2
R4 B2
R5 B2
R6 B3
R12 B3
R13 B2
R14 B2
R17 E6
R18 C4
R19 D5
R20 D6
R21 D4
R22 D4
R23 D5
R27 D2
R28 E2
R25 D4
R24 D4
R26 D4
R31 E6
R29 E2
R30 E6
R32 E6
R33 E6
R34 E2
R35 D4
R36 E1
R37 E2
R39 C2
R38 E2
R40 C2
R41 C2
R42 E5
R43 C4
R44 C4
R47 E2
R49 E1
R48 E1
S1 E4
U1 B5
U2 C5
U3 C3
U4 D3
Y1 C4
LED1
FAN_CTL
P_CON
IR
OSC_1
CS
D_HOST
RST_MPEG
POW_SW
OSC_1
POW_SW
OSC_2
-24VV
D_FM
RESET
LED1
D_FM
+12V
VCC
RDY_FM
DATA
D_HOST
SCK_MPEG
RDY_FM
POW_SW1
CLK
P_CON
CS
ATN_FM
OSC_2
IR
ATN_FM
SCK_MPEG
DATA
POW_SW
RST_TIME
RST_MPEG
LED2
P_CON
IR
+12V
LED2
FAN_CTL
FAN_CTL
FAN_CTL
P_CON
INT_FP
CLK
IDC_SDA
-24VV
+F2
+F2
+F1
+F1
VCC
-24VV
VCC
VCC
VCC
VCC
VCC
VCC
VCC
Y1
12MHz
U1
VFD Display
35 34
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
33
F2 F2
6G 5G 4G 3G 2G 1G NC NC NC NC NC NC NC P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 P12 P13 P14 P15 P16 NP F1 F1
NC
K4
JP1
PITCH=2.0
1
2
3
4
5
6
7
D6
1N4148
R83 1
R28
4K7
K5
C32
NC
S1
R38
10K(OPEN)
R29
1K
R36
NC
+
C4
47uF/16V
D1
1N4148/SM
T
FB2
J1
PICH=2.0
1
2
3
4
5
R40
10K(OPEN)
JP4
PITCH=2.0
1
2
3
4
D8
1N4148/SMT
R14
680
R82 1
FB3
R34
330
JP3
PICH=2.0
1
2
3
4
5
R12
1
C16
0.1u
R27
330
R24
100
C27
NC
+
C7
10UF/50V
R39
10K(OPEN)
C35
100P
R25
100
C28
NC
K2
R26
100
R18
10K
R44
100
C29
0.1u
R41
10K(OPEN)
C17
0.1
D5
5.6V/DIP
C24
0.1u
R42
0(OPEN)
C33
100P
R17
0
U2
PT6312
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
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
SW1 SW2 SW3 SW4 SDout SDin GND SCLK /CS KEY1 KEY2
KEY3
KEY4
VDD
SEG1/K1
SEG2/K2
SEG3/K3
SEG4/K4
SEG5/K5
SEG6/K6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
VEE
SEG13
SEG14
SEG15
SEG16
G6
G5
G4
G3
G2
G1
VDD
LED4
LED3
LED2
LED1
GND
OSC
C9
22P
C8
0.1u
R22
10K
D7
1N4148
R35
4K7
+
C5
10uF/50V
R43
1M
R20
0
R19
51K
R4
3.3k
R37
1K
R40
0
R33
10K
+
C3
47uF/16V
R5
3.3k
C30
0.1u
R41
0
+
C25
47uF/16V
R6
680/DIP
R21
10K
C26
100P
R32
10K
C1
104
K6
R31
10K
Q2
2n2222
U3
LH316S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
24
23
22
21
20
19
P_CON
DATA
NC
CS
NC
VSS
VSS
CLK
SCL
SDA
DATA_T
RST_TRST_M
IR
D_HOST
D_FM
SCK
VDD
RDY
ATN
OSC2
OSC1
RESET
VDD
R48
33K
K3
C10
22P
C2
104
C11
0.1u
R47
6.8K
C31
100P
C15
0.1u
R49
10K
C19
47P
R16
10K
+
C12
47uF/16V
+
C6
10UF/50V
C20
47P
+
C3
6
47uF/16V
C21
47P
Q3
2n2222/DIP
D9 1N4148
Q8
3906/SMT
R11
1
Q4
2n2222/DIP
FB11
D2
1N4148/SM
T
R23
10K
JP2
PITCH=2.0MM
1
2
3
4
5
6
7
8
C34
100P
Q5
2n2222/DIP
Q9
3904/SMT
R84 1
Q7
3906/SMT
LD1
1
3
2
R30
10K
R2
680/DIP
+
C14
47uF/16V
FB1
C18
NC
U4
REM
1
2
3
IR
GND
VCC
R13
680
6-3
6-3
6-3
6-3
6-3
6-1
6-1
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