Lenoxx MC-820 Schematic
A
MC-820 / CD-2820
6.00 V ~
6.5 V D.C.
1
2
+6.5V
CN4
+6.5V
L1
100uH X2
4 4
+
C37
330uF/10V
28272625242322
DO4.-
VREF
GND3
DO4.+
DI_4.2
DI_4.1
Vcc 2
KA-9258D
DO1.-
DO1.+
DI_1.1
DI_1.2
REG
REO
AVDD
+
C72
100uF/10V
Vref
100uF/10V
C3
102pF(M)
1234567
C32
393pF(M)
102pF(M)
103pF(M)
C21
0.1uF
+5V
R81
Q7
150
SS8050
+3.3V
ZD1
3 3
+
3.9V
C71
100uF/10V
C18
100uF/10V
+3.3V
+3.3V
R7
22
Q1
KSB564A
C28
102p
C73
1uF
+
C27
+
+
C14
22uF/10V
CN15
16
FCS(-)
15
TRK(+)
14
TRK(-)
13
FCS(+)
12
PD
R8 82
11
VR
10
LD
9
GND
R24 82K
8
F
R43 39K
7
C
R44 39K
6
B
R45 39K
5
2 2
A
R42 39K
4
D
R23 82K
3
E
2
Vcc
1
Vref
ELCO-16(B31)
SEMCO B31
+
VREF
SAMSUNG CD-RW
LED Boom Box
Application
Circuit
1 1
Q2
SS8550
C6
682pF(M)
R9
150K
C4
C25
MUTE
+
C36
100uF/10V
C29
C30
R15
102pF(M)
222pF(M)
150K
R2
C17
1K
0.1uF
3635343332313029282726
ATSC
37
LD
38
PD
39
PD_AC
40
PD_BD
41
PD_F
42
PD_E
43
DCB
S1L9226
44
MCP
45
DCCI
46
DCCO
47
VREF
48
EQC
RFM
1234567891011
C10
4pF
R3
10K
RF OUT
682pF(M)
LPFT
RFO
+5V
TE_1
EQ_I
C11
21201918171615
Vcc 1
DI_3.2
GND1
DI_2.1
891011121314
FE_O TE_O
100pF
CFE
RFE
GND
FE_O
FE_M
TZC/SSTOP
EQ_O
EFM_I
VCC
FRSH
C5103pF
+
B
DO3.+
DI_3.1
DI_2.2
DO2.+
R19 120K
R12 100K
TE_O
TE_M
FSET
FLB
C39 4.7uF/10V
0.033uF(M)
DO3.-
OPIN(+)
DO2.-
GND2
0.1uF/50V
+
C33
SL_P
SL_O
FGD
FS1
C20
0.1uF
C19
R18 33K
25
12
C31102pF
VREF
OPIN(-)
OP_OUT
SLM
ASSY
EFM_O
LOCK
WDCK
CLV_I
XRST
MDATA
ISTAT
TGU
IC3
C34 683pF
SPO
SPM
MLT
MCK
R2810K
SL_O
+
C35
R33 47K
IC4
24
23
22
21
20
19
18
17
16
15
14
13
+3.3V
C24
0.033uF(M)
CN3
10uF/10V
R20 120K
+
C75
22uF/10V
R22
100K
LOCK
XRST
MLT
MDATA
MCK
ISTAT
12345
SP+
SP-
SL+
SP_O
C7
R25
103pF
C
MOTOR
6
GND
SL-
LIMIT
SW
R58 4K7
C4M
R56 2K2 Optional
SOS1
XRST
MLT
MDATA
MCK
ISTAT
SUBQ
+3.3V
R59
22K
D1
+
C65
1N4148
1uF/10V
R82 22K
D2
1N4148
Q3
R83
22K
KSC945
22K
R21
68K
Short Circuit Q4, Q5 and Q6
B-C junction for LCD
display
R14
82K
+
C9
R38
8K2
C41
0.47uF/10V
R84
20K
R85
15K
333pF
R26
0.01uF
10K
R40
+
C40
1K (optional)
0.47uF/10V
C26
R37
1M
LOCK
VREF
S3C70F4-MC&T-II(9292-II)
IC2
1
Vss
2
X_Out
3
X_In
4
TEST
5
REMOTE
6
SCOR
7
RESET
8
MLT
9
MDATA
10
MCK
11
ISTAT
12
SUB_Q
13
KEY_0
14
KEY_1
15 16
COM_0 COM_1
+
C64
0.1uF
AVDD
C22
333pF
C66
820pF
R4
1M
C43
22p
R78
10K
X1
16.9344M
C44
22p
Vdd
SQCK
LED/LCD
LIMIT_SW
SYNC
MUTE
SEG_6/ B
SEG_5/ G
SEG_4/ C
SEG_3/ D
SEG_2/ E
SEG_1/ F
SEG_0/ A
COM_2
KSC945
+6.5V
R89
R90
R91
10K
10K
10K
C45
0.1uF
R87
+
C38
22
220uF
48
Vdd_Pll
1
Vss_Pll
2
VCO_LF
3
Vss_Pll
4
Vdd_Pll
5
Vdd_D
6
Xin
7
Xout
S5L9292
8
Vss_D
9
EFM_I
10
LOCK
11
SMEF
12
SMDP
SMDS
1314151617181920212223
R50
R53
+3.3V
R60
10K
30
R57
29
4K7
28
27
26
25
24
23
22
21
20
19
18
17
+6.5V
KSC945
Q4
C46
0.1uF
VREF
L_OUT
V_HALF
VSS_A_DAC
VDD_A_DAC
WDCK
TEST
LKFS
C4M
XRST
C4M
XRST
MLT
1K
1K
SQCK
MUTE
KSC945
Q5
R_OUT
Vss_DAC
Vdd_DAC
MLT
MDATA
MCK
MCK
MDATA
C48 1uF/16V
+
C49 1uF/16V
+
C47
0.1uF
SDATA_I
ISTAT
ISTAT
LED
ONLY
***
Q6
R75 10
R76
R77
3738394041424344454647
LRCK_I
SOS1
24
SOS1
SQCK
D
BCK_I
MON_2
MON_1
MON_0
DATX
C2PO
SBCK
VDD_3
Vss_2
VDD_2
MUTE
SQDT
SQCK
E
10
10
JP_LED
LED / LCD
+3.3V
R62
100K
R65
100K
R63
100K
R66
100K
R64
100K
R67
100K
+3.3V
R79
10K
LCD
ONLY
***
R80
10K
REC_SYNC
1N4148
Close SW
+3.3V
RMC
CN16
D5
B
G
C
D
E
F
A
SEGMENT
COM_2
COM_1
COM_0
KIN_1
KIN_0
KEY SCAND
CN5
CN1
CN7
CLOSE SWITCH
CL SW
BCN5
1
1
2
2
1
2
3
2
1
7
6
5
4
3
2
1
CN8
1
2
3
4
5
BCN1
1
2
3
RMC
BCN2
REC_SYNC
2
1
BCN3
7
6
5
4
3
2
1
SEGMENT
BCN4
1
2
3
4
5
B_SW1
BR1
+
100
BC1
1uF
B_SW2
REC SYNC
G
BD1 INTRO
BD2 PROG
EDKCPB
B_DIS1 LED 7SAG
F
A
K
BRX1
123
TSOP1838
F
A
K
G
EDKCPB
B_DIS2 LED 7SAG
KEYSCAND
C56
C57
C58
0.01uF
C59
0.01uF
RPT1
ALL
PLAY
BD3
BD4
BD5
B_TACSW1
PROGRAM
B_TACSW2
NEXT
B_TACSW3
STOP
B_TACSW4
REPEAT
B_TACSW5
CD-RW
SYNC
1N 4148
1N 4148
1N 4148
BD6
BD7
1N 4148
BD8
BD9
BD10
BD11
+
+
100uF
100uF
IC1
36
+3.3V
35
34
R88
33
22
32
31
JITB
C42
30
29
104p
28
27
MUTE
26
SUBQ
25
BACK
B_TACSW6
PLAY
B_TACSW7
INTRO
CONTROL BOARD
4700pF
AUDIO OUT
CN6
3
2
C52
4700pF
R17
47K
C51
1
R16
47K
(LED APPLICATION SHOWN)
A
B
C
D
E
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