Read Sharp CD-MD3000 (serv.man31) Service Manual online
– 47 –
CD-MD3000H/CD-MD3000W
Figure 47 BLOCK DIAGRAM (1/7)
TO MAIN PWB
PICKUP UNIT
CAM
SWITCH
TRAY SWITCH
IC5
SWITCHING
Q5
DZ2
CNS11
2
1
TO MAIN PWB
4
3
6
5
Q3
Q4
IC2
TC9490F
SERVO/SIGNAL
CONTROL
X1
16.934MHz
IC6
TA2147F
SERVO PRE
AMP.
SWB110
SWB109
SWB103
SWB104
SWB105
SWB106
SWB101
SWB102
CNP1
SWB108
SWB107
IC5
BA5939S
FOCUS/
TRACKING/
SPIN/
SLED DRIVER
NSW1
PICKUP IN
NM2
SLED
MOTOR
NM1
SPINDLE
MOTOR
MOB1
MAIN CAM
MOTOR
MOB2
TRAY
MOTOR
IC6
LPF
Q1
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
NC
/RST
GND
BUS1
BUS3
BUCK
/CCE
CD/CD-RW_SEL
CD FUNC
33
32
31
30
29
28
27
26
25
24
23
22
PU-IN
CD_R-CH
CD_L-CH
CD_+B
GND
CD_GND
BUS0
BUS2
CANB_B
CANA_E
CANA_C
CANA_A
TRAY_A
TRAY_C
TRAY_B
CANA_B
CANA_D
CANB_A
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
DVR
DVDD
DVSS
XI
XO
XVDD
XVDD
XVSS
TESIN
DVSS
DVDD
DVDD
SEL
VREF
DMO
AVDD3
FMO
FMO
TEBC
RFGC
TRO
FOO
SBAD
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
TEZI
TEI
FEI
RFRP
RFI
SLCO
PVREF
LPFO
LPFN
VCOF
AVSS
AVDD
RFCT
RFZI
10 11 12 13 14 15 16
1 2 3 4 5 6 7 8 9
PDO
PVDD
SBSY
SFSY
DATA
DVSS
DVDD
CLCK
SBOK
IPF
DOUT
AOUT
BCK
LRCK
/UHSO
/HSO
61
64
63
62
60
59
58
57
56
55
54
53
52
51
50
49
/RST
/CCE
BUCK
VSS
VDD
BUS3
BUS2
BUS1
BUS0
DVSS
LO
RO
ZDET
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
GND
RFN
RFO
AGCI
RFGO
RFIS
RFRP
FEN
FEO
VRO
GVSW
SBAD
TEO
TEN
RFGC
TEB
SEL
FNI
FPI
TPI
TNI
MDI
LDO
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
15
14
13
12
11
10
9
8
7
6
5
8
7
6
5
4
3
2
1
3
2
1
MUTE
PREVCC
LEVEL SHIFT
BIAS
BIAS
POWVCC
VCC
LOADING2
LEVEL SHIFT
LEVEL SHIFT
LEVEL SHIFT
VCC
LOADING1
VREFSW
BIAS
PREVCC
POWVCC
BIAS
BIAS
LEVEL SHIFT
LEVEL SHIFT
CANB_A
CANA_E
CANA_D
CANA_C
CANA_B
CANA_A
CANB_B
TRAY_A
TRAY_B
TRAY_C
+
–
+
–
M
M
SP+
SP–
–
– +
+
M
M
GND
PU-IN
SL–
SL+
8
7
6
5
4
3
2
1
TR+
FO+
LD
VR
PD
GND
TR–
TR–
GND
PD
FO–
FO+
TR+
ACTUATOR
TR–
FO–
FO+
TR+
3
1
7
8
6
5
4
2
LD
VR
FO–
–
–
–
–
–
+
+
+
+
+
VCC
LD
MON
GND
E
A
B
F
C
1/2VCC
7
6
5
4
3
2
1
C
F
E
VREF
+5V
1/2V
E
A
B
F
C
3
4
5
7
1
2
6
+5V
A
B
LTOH41M1
VCC
17
TMAX
NC
NC
NC
NC
NC
+B
+B
+B
GND(D)
GND(D)
+B
3.3V
REGULATOR
SWITCHING
IC7
74VHC08F
INVERTOR
12
14
13
13
11
10
10
9
8
8
7
6
5
4
3
2
1
NC
IC7
CD-MD3000H/CD-MD3000W
– 48 –
Figure 48 BLOCK DIAGRAM (2/7)
VSSD
VDDD
XIN
XOUT
VSSA
VDDA
MPX
IN
DO
CL
DI
CE
XT21
4.332MHz
ICT21
LC72722
RDS DECORDER
X351 456kHz
CF351
FM IF
+B
A_+B
+B
+B
QT21
AMP.
FM +B
VT
T306
T302
L341
BALUN
CF302
DO
CE
CL
DI
CF301
FE301
FM FRONT END
Q360
R
L
MPX
IN
FM/AM
OUT
IF IN
IF OUT
SD
FM MONO/ST
MONO/ST
AM RF IN
AFC
IN
OUT
AM OSC
REG
IN
OUT
VCC
FM IF IN
FM IF
AMP.
Q301
FM IF
FM
X352
4.5MHz
X IN
STEREO
IC302
LC72131
PLL (TUNER)
AM
IN
FM IN
FMOSC
T351
AM IF
GND
OSC
FM
FM IF
AM OSC.
SWITCHING
AM ANTENNA
AM RF
AM LOOP
ANTENNA
ANTENNA
SO301
FM ANTENNA
TERMINAL
Q371
Q351
17 19 20 18
16
14
12
11
10
13
21
22
23
24
20
22
21
13
12
14
15
20
21
22
23
24
15 16 11 10 13 12
6
7
1
3
2
4
3
4
5
6
8
9
7
15
8
2 6 7
3
4
5
1
1 2
3
4 5 8 9
L354
L.P.F
CF352
FM MUTE
LEVEL
7
FOR CD-MD3000H
X351 456kHz
CF351
FM IF
+B
+B
A_+B
+B
+B
FM +B
VT
T306
T302
CF302
DO
CE
CL
DI
IC301
TA7358AP
FM FRONT END
Q360
R
L
MPX
IN
FM/AM
OUT
IF IN
IC303
LA1832S
FM IF DET./FM IF MPX./AM IF
IF OUT
SD
FM MONO/ST
MONO/ST
AM RF IN
AFC
IN
OUT
AM OSC
REG
IN
OUT
VCC
FM IF IN
FM IF
FM
X352
4.5MHz
X OUT
STEREO
IC302
LC72131
PLL (TUNER)
AM
IN
FM IN
FM OSC.
OSC. BUFF
T351
AM IF
GND
AM OSC.
SWITCHING
AM ANTENNA
AM RF
Q371
Q351
17 19 20 18
16
14
12
11
10
13
21
22
23
24
20
22
21
15 16 11 10 13 12
6
7
1
3
4
5
6
8
9
7
15
1
2 3 4 5
7
8
9
6
1 2
3
4 5 8 9
CF352
T312
FM IF
BF301
BAND PASS
FILTER
L312
T311
FM MUTE
LEVEL
FM RF
Q302
1
2
1
2
VD301
X OUT
SWITCHING
SWITCHING
1
1
3
VR351
10K(B)
10K(B)
1
3
1
3
1
1
3
2
VD302
VD303
VD301
FM OSC.
3
3
IC303
LA1832S
FM IF DET./FM IF MPX./AM IF
VR351
10K(B)
10K(B)
X IN
SWITCHING
SWITCHING
FOR CD-MD3000W
CNP303
CNP301
1
2
3
FM/AM
LOOP
ANTENNA
VSM
FM
AM
1
2
3
VSM
– 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
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
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
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
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
19
18
17
16
15
14
13
12
11
10
10
9
8
7
6
5
4
3
2
1
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
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
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
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
20
19
18
17
16
15
14
13
12
17
16
15
14
13
12
11
10
10
9
8
7
6
5
4
3
2
1
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_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