DOWNLOAD Sharp CD-MD3000 (serv.man10) Service Manual ↓ Size: 10.08 MB | Pages: 127 in PDF or view online for FREE

Model
CD-MD3000 (serv.man10)
Pages
127
Size
10.08 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System
File
cd-md3000-sm10.pdf
Date
PREV: Sharp CD-MD3000 (serv.man9) Service Manual

Sharp CD-MD3000 (serv.man10) Service Manual ▷ View online

– 49 –
CD-MD3000H/CD-MD3000W
 Figure 49 BLOCK DIAGRAM (3/7)
IC501
BU4066BCF
INPUT 
SELECTOR
1
11
8
4
3
5 6
12 13
ERASE
HEAD
RECORD/ 
PLAYBACK
HEAD
R-CH
L-CH
PB_MUTE
CD-R_SEL
S-MUTE
VSM
C2B_DI
C2B_CE
C2B_DO
C2B_CL
X W
U
V
R
T
O
Q
TO  MICOM  SECTION
Q508
Q507
JK501 
Q509
Q502
Q501
IC502
LC75341
AUDIO PROCESSOR
IC503
NJM4558M
OPE AMP.
R-CH 
L-CH
–
–
+
+
–
–
+
–
+
–
+
+
– +
– +
CD/MD_R 
TUNER_R 
TAPE_R
AUX_R 
IC502
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
ROUT
LBASS
LSEL0
CCB
INTERFACE
R1
R2
R3
R4
RSEL0
RIN
RTRE
RBASS
VREF
VDD
CLK
L1
L2
L3
L4
LIN
LTRE
LOUT
VSS
CE
DI
AUX
DECK
TUNER
CD
A_+B
A_-B
L_CH
TO  MICOM
SECTION
VSM
C2B_DO
C2B_CL
C2B_DI
C2B_CE
CD/MD_L 
TUNER_L 
TAPE_L
AUX_L 
REC_R-CH
TAPE_L
TO  MICOM
SECTION
TO  MICOM
SECTION 
CD_R
CD_L
8
7
6
5
4
3
2
1
–
+
+
–
a
d
f
g
i
k
l
+B
+B
-B
SWITCHING
SYSTEM MUTE 
REC_L-CH
R_CH
R_CH
FROM
MAIN PWB
TO POWER
SECTION
IC101
CNS940
Q119
Q120
IC102
BA3126N 
HAED
SELECTOR
Q101
Q102
CNP102
Q116
Q114
Q115
CNP101
IC101
AN7345K
PLAYBACK AND 
RECORD/PLAYBACK AMP.
SWITCHING 
BIAS OSC. 
REC MUTE 
REC MUTE 
SWITCHING 
9 
8 
7 
6 
5 
4 
3 
2 
1 
REC_MUTE
REC_CONT
REC_L-CH 
REC_R-CH 
A_GND 
TAPE_R-CH
TAPE_L-CH
REC_BIAS
A_+10V
M_+10V
A_GND 
M_GND 
ERASE 
T2_R2 
T2_R1 
T2_L1 
T2_L2 
24
23
22
21
19
18
17
16
15
14
13
12
11
10
9
8 
7 
6 
4 
3 
2 
1 
L-CH
L-CH
R-CH
Vcc
ALC 
GND 
ALC 
RIPPLE
Nor/CrO2
–
+ 
–
+ 
Hich=T1 
+ 
+ 
–
–
Hich=CHROME 
+B
1
2
3
4
5
6
7
REC_L-CH
A
C
1
2
3
4
5
6
7
8
Q503
Q504
AUX INPUT
MD_RCH
MD_LCH
2
1
1
2
3
4
5
6
7
1
2
3
4
5
6
1
2
3
4
5
6
IC501
BU4066BCF
10
CD-MD3000H/CD-MD3000W
– 50 –
 Figure 50 BLOCK DIAGRAM (4/7)
1
1
12
12
g
i
TO CD PWB
O Q P X
U V W T R
d
f
c
a
+B
IC905
3
2
1
+B
+B
+B
+B
+B
+B
+B
+B
+B
UNA901
DIGITAL
INPUT
3
2
1
IC921
74HCT00F
DIGITAL SIGNAL
SWITCH
14
13
7
6
5
4
3
2
1
Vcc
GND
8
9
10
11
12
TO AUDIO
SECTION 
+B
+B
F_REC 
CST_SW
NC
NC
+ 
–
SOLENOID 
– COM
+MTR
PLAY  SW 
+5V  SENSOR
SENSOR  OUT
+SOL
R_REC 
M
PLAY
SWITCH
TAPE
MOTOR
CASSETTE
SWITCH
M
1
2
3
4
5
6
7
8
9
10
11
12
1
2
1
CNP975
FROM
CD PWB
CD DOUT
CNP921
CNP925
Q953
Q952
CNP920
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
NC
MDDSCK
RESET
KDATA
D_+B(MD)
D_+B(MD)
D_GND(MD)
D_GND(MD)
D_GND(MD)
LOAD_SW
SID
SERCH
A_+B(MD)
REC_LCH 
REC_RCH 
MD_LCH
MD_RCH
PCONTO
AD_GND
MDDATA
DSTB
P_DOWN
BACKUP
MD_A_GND
MD_A_GND
TO  MD
PWB 
D_GND(MD)
D_+B
4
3
2
1
4
3
2
1
FROM
MD PWB
FROM
CD PWB 
CD_BCK
CD_LRCK 
CD_DATA 
D_GND 
CD_DATA 
D_GND 
CD_BCK
CD_LRCK 
GND
SW901
SPAN
SELECTOR
NC
CD-MD3000W
ONLY
50/9
100/10
X902
32.768kHz
Q909
Q908
Q907
Q906
Q905
IC905
KIA7042AP
RESET
Q901
X901
8MHz
CNP970
FFC970
IC901
IX0354AW
SYSTEM
MICROCOMPUTER
CNP901
33
32
31
30
29
28
27
26
25
24
23
22
FH_A-SW_A 
FH_T-SW_C 
FH_T-SW_B 
FH_T-SW_A 
FH_A-SW_B 
FH_A-SW_C 
FH_A-SW_D 
FH_A-SW_E 
FH_C-SW_A 
FH_C-SW_B 
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
CD_BUS3 
CD_BUCK 
CD_CCE
CD_RES
CD_BUS2 
CD-RW 
CD_BUS1 
T-MO_REV
CD_BUS0 
T-MO_FOR
CD_L
PU-IN 
A_GND
C-MO_REV
CD_R
C-MO_FOR
CD_GND
CD_GND
CD_+B 
CD_+B 
2
3
4
5
6
7
8
9
10
11
12
CD_GND
A_+10V
A_GND
R  CH
A_GND
A_+10V
A_GND
CD
+B
CD_GND
A_-B
L_CH
R_CH
C2B_CL
C2B_DO
C2B_CE
C2B_DI
S-MUTE
VSM 
TO AUDIO SECTION
A_+B
PB_MUTE 
CD_MUTE 
CD-R_SEL
CD_R
CD_L
SIDE-A
CST-SW
LEVEL_L 
LEVEL_R
51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 
40
41
42
43
44
45
46
47
48
49
50
31
32
33
34
35
36
37
38
39
LCD E 
CD  MUTE
AVref1
AVSS
Vref 0
AVDD A
RESET 
XT1 
XT2 
VSS 
X1
X2
VDD 
TIMER LCD 
30  LCD R/W
29  LCD RS
28  POWER RLY
27  N.C. 
26  LCD  DB7  
TEST/Vpp
LCK2
LCK1
JOG-B 
KEY 4 
KEY 3 
KEY 2 
KEY 1 
KEY 0 
BACK LED CONT
LCD DB6
LCD DB5
LCD DB4
DATA
JOG-A 
CST  SW
CAM  SW
B-FP  SW
REMOCON 
VSM 
PROTECT 
C FUTA OP 
SPAN
C FUTA CL 
SYS MUTE
DEST_IN
CE
TUNER DI
TUNER DO
TUNER CL
CLK
CAM-SW
RUN_PUL
MOTOR
SOL
1 2 3 4 5 6 7 8 9 1
30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 
49  SP RLY
50  POWER KEY
CD-SW
NC
GND 
SOLENOID DRIVER
RUN PULSE
MOTOR DRIVER
SYS STOP 
+5V
SIDE-B
MD SERCH
MD RESET
MD-DATA/RX
K-DATA/TX
MD-DSCK
L  CH
RESET
– 51 –
CD-MD3000H/CD-MD3000W
 Figure 51 BLOCK DIAGRAM (5/7)
+B
8 7 6 5 4 3 2 1
TO DECK SECTION
TO POWER PWB
IC913
CNP102
3
2
1
+B
+B
+B
+B
+B
DIG_SEL
D_+B
D_+B
GND 
GND 
GND 
9
10
11
12
13
DIMMER
D GND
A +B
SDA 
SCL 
D +B
5 
1 
CNP701
Q707
LCD720
LCD DISPLAY
5 
1 
2 
3 
4 
VDD 
VSS 
VLCD
IC701
TA7291S
LOADING 
MOTOR
DRIVER
1 2 3 4 5 6 7 8 9 
IC913
KIA7805P
VOLTAGE REGULATOR
CNS940
BI950
BI960
IC912
BU2092F
OUTPUT 
EXPANDER
CNP934
CNP931
+B
REC_RCH 
REC_LCH 
TAPE_L
TAPE_R
TO  AUDIO
SECTION
TAPE_R
TAPE_L
A_GND 
REC_LCH 
REC_RCH 
REC_MUTE
REC_CONT
REC_BIAS
l
POWER_RLY 
SP_RLY
PROTECT 
FAN 
D_GND
SP_DET
SP_RLY
UN_SW  5V
AC_RLY  CTL
A_-B
D_GND
FAN_CTL
1 2 3 4 5 6 7 8
M_+B
M_GND
CD_+B
CD_GND
CD_+B
CD
_
GND
M_GND
M_+B
PNL_OP
PNL_CL
D_GND 
KEY4
KEY3
KEY2
JOG-B 
JOG-A 
A_+B
7
6
5
4
3
2
1
D_+B
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
CD-R_SEL
SW12
LCK
SW10
SW11
SW5
SW7
SW8
SW9
VSS
DATA
CLK
VDD
OE
A_+B
D_+B
D_GND
REMOCON
POW_KEY
KEY0
KEY1
LCK
CK
DATA
POW_IND
11
10
9
8
7
6
5
4
3
2
1
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
69 70 71 72 73 74 75 76 77 78 79 80
9 8 7 6 5 4 3 2 1
CD RESET
CD CCE
83  FH T-SW C
82  FH T-SW B
81  FH T-SW A  
FH A-SW B
FH  M  B-
FH A-SW A
FH  M  B+
FH  M  A-
FH  M  A+
CD RW
CD  PICK  IN
VDD
DEST_OUT2
VSS
FH C-SW B
FH C-SW A
FH A-SW E
FH  A-SW D
FH A-SW C
CD BUS3
CD BUS2
CD BUS1
3  REC BIAS
2  REC
1  PB MUTE 
CAM
  
SW
B-FP  SW
A-FP  SW
DEST_OUT1
CD BUCK
CD BUS0
REC  MUTE
CD-R DATA 
CD-R CLK
TUNER
 DO
TUNER CL
RUN PULSE
T-SOL
T-MOTOR
NC
NC
NC
NC
m
j
k
8 9 10 11 12 13 14 15
2 11 10
+B
SW711,SW712,
SW720~SW725 
Q724
Q720
Q721
Q723
Q725
Q722
SW710,SW780,
SW730~SW735
LED759
LED731
LED754
LED756
LED757
LED758
LED755
SW701
POWER
RX701
REMOTE
SENSOR
LED770
SW750~SW758
JOG701
JOG DIAL
SW760~SW764,
SW767,SW782 
Q708
LED772~
LED7775,
LED786
SW783,
SW772~SW778
CNS720 
CNS770 
IC702
OUTPUT EXPANDER
BU2092F
LED_4 
LED_1 
LED_2 
LED_3 
LED_5 
LED_6 
18
17
16
15
14
13
12
11
10
9 
8 
7 
6 
5 
4 
3 
2 
1 
Q10 
VDD 
__
OE
Q11 
Q9
Q8
Q7
Q6
Q5
Q3
Q4
Q2
Q1
Q0
LCK
CLOCK
VSS
POW_IND 
DATA
CK
LCK 
KEY0
KEY1
POW_KEY 
REMOCON 
D_GND 
D_+B
A_+B
LED_EG
LED_5 
LED_4 
LED_3 
LED_2 
LED_1 
A_+B
JOG-A 
JOG-B 
KEY2
KEY3
KEY4
D_GND 
3 
2 
1 
5 
6 
7 
8 
9
10
11
1 
2 
3 
4 
4
3
6
7
5
2
1
IC702
DATA
+B
+B
+B
+B
+B
+B
+B
+B
LED735,LED737,
LED738
SW705
OPEN/CLOSE 
MO700
CONTROL
PANEL MOTOR
MOTOR_–
MOTOR_+ 
D_GND 
CLOSE_SW
OPEN_SW 
M
MD LOAD SW
MD DSTB
MD SID
CD-MD3000H/CD-MD3000W
– 52 –
 Figure 52 BLOCK DIAGRAM (6/7)
A
C
+B
+B
+B
+B
1 
2 
3 
4
5
6
7
8 
9 
10
11
12
13
14
15
10
1
2
3
4
5
6
7
8
9
11
12
13
14
15
AC POWER
SUPPLY
CORD
+B
MAIN
MAIN
SUB 
WOOFER
+B
+B
IC802
TO MAIN PWB
6 
T.F.
SP L-CH
SP R-CH
GND
SP R-CH
SP L-CH 
GND
SP L-CH
SP L-CH
GND
SP R-CH
SP R-CH
GND
M 
+ 
+B
-B
-B
-B
+B
FAN MOTOR
DRIVER
RELAY
DRIVER
MICON +5V
+B
+B
+B
-B
-B
-B
+B
-B
+B
-B
+B
+B
+B
VOLTAGE
REGULATOR
VOLTAGE
REGULATOR
VOLTAGE
REGULATOR
-B
HIGH
LOW
CD-MD3000H
ONLY
CD-MD3000W
ONLY
F802
T2.5A L 250V
IC803
M 
+ 
MO201
FAN
MOTOR
CD-MD3000W
ONLY
IC808
3 
1 
2 
Q813 
Q812 
FAN MOTOR
DRIVER
FAN PROTECT
CD-MD3000W
ONLY
Q200
CNP807
Q210
Q212
Q211 
D812~D815
D804~D807
IC808
KIA7805P
CONSTANT VOLTAGE
REGULATOR
F807
T3.15A L 250V  
RY801 
SO201
SPEAKER
TERMINALS 
RY202
Q209 
RY201
Q810 
Q801
Q803
Q805 
CNP806
F808
T2A L 250V
Q806
IC202
STK40204(2Ch)
POWER AMP.  
Q204 
Q203 
Q208
Q207
Q206 
Q201 
IC201
STK40271(2Ch)
POWER AMP.  
Q205 
F801
T2A L 250V
F804
T5A L 250V
F803
T5A L 250V
F806
T3.15A L 250V
D816
D817
D808~D811
F805
T3.15A L 250V
IC203 
T802
SUB POWER 
TRANSFORMER
Q807 
Q809 
IC802
KIA7810AP
VOLTAGE 
REGULATOR  
IC203
KIA4558P
 OPE AMP.
T801
MAIN POWER
TRANSFOMER
MO200
FAN
MOTOR
Q202
M+10V 
230-240V
220V
127V
110V
SO801
VOLTAGE
SELECTOR
IC803
NJM431L
VOLTAGE 
REGULATOR  
A_+10V
GND
GND
GND
+5V
M_+10V
TO DECK SECTION 
D_GND
FAN_CTL 
D_GND
-8V
AC_RLY  CTL
UN_SW  +5V
SP_RLY
SP_DET
8 
3  4 6 
1 
7 
2 5 
9 
CD_GND
M_GND
CD_+B
M_10V
A_GND
A_+10V
M_10V
M_GND
CD_GND
CD_+B
A_GND
A_+10V
A_GND2
R-CH
L-CH
15  
14 
13  
12 
11  
9 
8 
6  7 
5 
4 
3 
2 
1 
10  
+
+
–
–
–Vcc
+Vcc
Ch1
Ch2
Ch2
Out
Out
Ch1
8 
7 
5 
4 
3 
2 
1 
+
+ 
–
–
3 
2 
1 
Out
Ch2
Out
Ch2
Ch2
Ch1
–
–
+
+
+Vcc
–Vcc
FOR CD-MD3000H:  AC 230V, 50Hz
FOR CD-MD3000W: AC 110/127/220/
                                  230-240V, 50/60Hz
-
+ 
+ 
-
+ 
-
+ 
-
1 
3 
2 
JK701
HEADPHONES
L802
LINE
FILTER
10  11  12   13  
+5V
Q215
Q811
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