Mystery MMD-650U Schematics MCU
D
C
B
BA12V
A
BA12V
8
R72
12K
E31
47U
U3
E30
100U/16V
R71
10K
CN4
CD8V
4148
RADIO-ON
CON25
CD8V
MUTE
D15
RADIO-ON
CD_ON
RADIO-ON
PLL-DI
M5V1GND2+5V3GND4DOUT5DIN6CLK7CS8IR9A+9V10VCD-R11AGND12VCD-L13RESET14FWD15REV16M+17M-18LO-SW19OP-SW20CL-SW21MUTE228V23MIC24AGND
CDR
CDL
D19
104
R79
1K
VCD-DI
VCD-DO
LCD-CS
LCD-DI
VCC
CL-SW
LO-SW
OP-SW
SCL
SDA
RST
3435 36 3738 3940 4142 4344
DIODE
CD-R
CD-L
C37
102
DVD-MCU
C38
CD5V
D16
4148
4148
CD_ON
POW_ON
POW_ON
SUB
SUB
123456789
POW
IR-IN
STBY
MUTE
LCD-CL
VCD-ON
PLL-CL
VCD-CL
VCD-STB
TMP87CH47U
FWD
REV
STIN
EVR+
DTH-SW
BEEP
ACC-IN
0
25
R86
1K
R103
CPU5V
R101
100K
R100
100K
R99
100K
R98
22K
R97
22K
R96
22K
R95
22K
R94
22K
R93 47K
R92
4K7
R91
1K
R90
1K
R89
1K
R88
2K2
R87
2K2
C36
104
IN1
9
VREF
7654321
U2
TA7291S
8
OUT2
7
VS
6
GND
5
NC
4
OUT2
3
VCC
2
IN2
1
D17
4148
D18
4148
A K
MUTE
IC3
1213141516171819202122
11
10
EVR-
F-LED
INH-SW
TEST
RESET
XIN
XOUT
VSS
VCC
LEVER
A-E
KEY0
KEY1
SD
PLL-CE
2324252627282930313233
8V
D13
4148
D14
R70
47K
R69
22K
D12
4148
4148
10U/16V
C35
203
R68
1K
E28
10U/16V
10K
X2
8MHZ
22K
22K
R65
R66
E29
D11
CPU5V
R67
27P
C34
R49
100K
C33
27P
CPU5V
22K
R64
E50
220U/16V
D21
1
2
3
4
5
AT1796-50A
L7
CD8V
CD5V
L9
FB320
D110
5V6
CD5V
E35
220U
J1
CD5V
SCL
EV_CLK
SDA
EV_DA
E51
220U/16V
5822/1W
R144
47K
Q2
9014
R145
47K
220U
R108
END+
C72
C67
LCD+
LCD+
4K7
R111
104
CD_ON
104
LCD-CL
IR
220uH
R109
0
E32
12345678910111213
INH
KEY1
LCD-CS
LCD-DI
DTH-SW
CD_ON
3K3
KEY0
END-
MMD-650U-MCU.SCH
Number RevisionSize
A3
Title
Date: 18-Jul-2007 Sheet of
File: D:\LIZHIYONG\k\CD7020\VCD.ddb Drawn By:
CON14
14
1K
1K
R761KR771KR78
R75
EQ IN
S1
A/E
R73
EQ IN
D
2K2
R74
8K2
R101
1K
BB
ACC
ST IN
DTS_CS
DTS_CLK
DTS_DAT
SD
ACC
BEEP
ST-IN
SD
DTS_CLK
DTS_DAT
DTS_CS
C
R85
1K
CPU5V
47K
47K
10K
R82
R81
R83
B
22K
10K
R84
R105
68K
47K
R80
R104
SW2
DTH
SW1
EJT
R106
100K
R107
1K
D20
SW3
A
F-LED
RESET
1 2 3 4 5 6 78
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