CD-MD3000 (serv.man31). Block diagrams - Sharp Audio Service Manual (repair manual)

cd-md3000 (serv.man31) service manual
Model
CD-MD3000 (serv.man31)
Pages
7
Size
335.7 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System / Block diagrams
File
cd-md3000-sm31.pdf
Date

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
TO MAIN PWB
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  
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
XVSS
TESIN 
DVSS
DVDD
SEL
VREF
DMO
AVDD3
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  
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  







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 
1/2VCC
7
6
5
4
3
2
1
C
F
E
VREF
+5V 
1/2V
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  
11  
10  

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
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
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
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)
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)
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
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 
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
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
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Download Sharp CD-MD3000 (serv.man31) Service Manual (Repair Manual)

Here you can read online and download Sharp CD-MD3000 (serv.man31) Service Manual in PDF. CD-MD3000 (serv.man31) service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sharp CD-MD3000 (serv.man31) System. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.