DOWNLOAD Sharp CD-CH1000 (serv.man26) Service Manual ↓ Size: 235.91 KB | Pages: 6 in PDF or view online for FREE

Model
CD-CH1000 (serv.man26)
Pages
6
Size
235.91 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System / Block diagrams
File
cd-ch1000-sm26.pdf
Date
PREV: Sharp CD-CH1000 (serv.man25) Service Manual

Sharp CD-CH1000 (serv.man26) Service Manual ▷ View online

CD-CH1000H/CD-CH1000W
– 34 –
 Figure 34 BLOCK DIAGRAM (5/6)
FM
AM
ERASE
HEAD
L-CH
R-CH
VSSD
VDDD
XIN
XOUT
VSSA
VDDA
MPX
IN
DO
CL
DI
CE
XT21
4.332MHz
ICT21
LC72722
RDS DECORDER
X351 456kHz
FM IF CF351
+B
+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
OSC
STEREO
IC302
LC72131
PLL (TUNER)
AM
 
IN
FM IN
FMOSC
T351
AM IF
GND
OSC
FM
FM IF
AM BAND
COVERAGE
VOLTAGE
REGULATOR
AM 
TRACKING
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
8 
9
7
15
8
2 6 7
3
4
5
1
1 2
3
4 5 8 9
L354
L.P.F
CF352
VR351
FM MUTE
LEVEL
7
FOR CD-CH1000H
X351 456kHz
FM IF CF351
+B
+B
+B
+B
+B
FM +B
VT
T306
T302
CF302
DO
CE
CL
DI
IC301
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
OSC
STEREO
IC302
LC72131
PLL (TUNER)
AM
 
IN
FM IN
FMOSC
OSC BUFF
T351
AM IF
GND
OSC
FM
AM BAND
COVERAGE
VOLTAGE
REGULATOR
AM 
TRACKING
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
B.P.F
L312
T311
VR351
FM MUTE
LEVEL
FOR CD-CH1000W
FM RF
Q302
CNP303
1
2
3
FM/AM
LOOP
ANTENNA
REC
PLAY
HE
– 35 –
CD-CH1000H/CD-CH1000W
 Figure 35 BLOCK DIAGRAM (6/6)
H/N 
P.B 
REC 
R REC
L REC
POP REDUCE
R NF
L  NF
R NF
L  NF
L
R
L
R
20
7
18
8 17
13
21
4
5
2
3
22
6
9
16
12
11
1
23
24
VCC
AC BIAS 
ERASE
HEAD
L-CH
R-CH
P.B 
REC 
REC MUTE 
REC
P.B
PB_MUTE
S-MUTE
C2B_DI
C2B_CE
C2B_DO
C2B_CL
D_GND
W
U
V
R
S
T
O
TO MICOM SECTION
Q507
Q508
JK501
AUX IN 
Q509
Q501
Q502
IC502
LC75341
AUDIO
PROCESSOR
IC503
NJM4558M
MOTOR DRIVER
R-CH 
L-CH
24
23
21
18
17
16
15
14
13
12
11
10
9
8
7
4
3
2
1
LSEL0
RSEL0
RIN
VDD
CLK
LIN
VSS
CE
DI
A_+B
A_-B
L_CH
TO MICOM
SECTION
C2B_DO
C2B_CL
C2B_DI
C2B_CE
CD
TUNER
TAPE
AUX
REC_R-CH
TAPE_L
TO MICOM
SECTION
TO MICOM
SECTION 
CD_L
8
7
5
4
3
1
a
d
f
g
k
l
+B
+B
-B
SWITCHING
SYSTEM
MUTE 
REC_L-CH
TO POWER
SECTION
CNS940
Q119
Q120
IC102
BA3126N 
HEAD
SELECTOR
Q101
Q102
CNP102
Q116
Q114
Q115
IC101
AN7345K
PLAYBACK AND 
RECORD/PLAY BACK
AMP.
SWITCHING 
BIAS
BIAS OSC. 
SWITCHING 
RECORD/ 
PLAYBACK
HEAD
9 
5
7 
6 
8
4 
3 
2 
1 
REC_MUTE
REC_CONT
REC_L-CH 
REC_R-CH 
TAPE_R-CH
TAPE_L-CH
REC_BIAS
A_+10V
M_+10V
BIAS_GND
A_GND 
L-CH
REC_L-CH
A
B
C
D
1
2
3
4
5
6
7
8
L
R
L
R
L
R
L
R
L
R
L
R
FROM MAIN PWB
A_GND 
– 35 –
CD-CH1000H/CD-CH1000W
 Figure 35 BLOCK DIAGRAM (6/6)
H/N 
P.B 
REC 
R REC
L REC
POP REDUCE
R NF
L  NF
R NF
L  NF
L
R
L
R
20
7
18
8 17
13
21
4
5
2
3
22
6
9
16
12
11
1
23
24
VCC
AC BIAS 
ERASE
HEAD
L-CH
R-CH
P.B 
REC 
REC MUTE 
REC
P.B
PB_MUTE
S-MUTE
C2B_DI
C2B_CE
C2B_DO
C2B_CL
D_GND
W
U
V
R
S
T
O
TO MICOM SECTION
Q507
Q508
JK501
AUX IN 
Q509
Q501
Q502
IC502
LC75341
AUDIO
PROCESSOR
IC503
NJM4558M
MOTOR DRIVER
R-CH 
L-CH
24
23
21
18
17
16
15
14
13
12
11
10
9
8
7
4
3
2
1
LSEL0
RSEL0
RIN
VDD
CLK
LIN
VSS
CE
DI
A_+B
A_-B
L_CH
TO MICOM
SECTION
C2B_DO
C2B_CL
C2B_DI
C2B_CE
CD
TUNER
TAPE
AUX
REC_R-CH
TAPE_L
TO MICOM
SECTION
TO MICOM
SECTION 
CD_L
8
7
5
4
3
1
a
d
f
g
k
l
+B
+B
-B
SWITCHING
SYSTEM
MUTE 
REC_L-CH
TO POWER
SECTION
CNS940
Q119
Q120
IC102
BA3126N 
HEAD
SELECTOR
Q101
Q102
CNP102
Q116
Q114
Q115
IC101
AN7345K
PLAYBACK AND 
RECORD/PLAY BACK
AMP.
SWITCHING 
BIAS
BIAS OSC. 
SWITCHING 
RECORD/ 
PLAYBACK
HEAD
9 
5
7 
6 
8
4 
3 
2 
1 
REC_MUTE
REC_CONT
REC_L-CH 
REC_R-CH 
TAPE_R-CH
TAPE_L-CH
REC_BIAS
A_+10V
M_+10V
BIAS_GND
A_GND 
L-CH
REC_L-CH
A
B
C
D
1
2
3
4
5
6
7
8
L
R
L
R
L
R
L
R
L
R
L
R
FROM MAIN PWB
A_GND 
– 35 –
CD-CH1000H/CD-CH1000W
 Figure 35 BLOCK DIAGRAM (6/6)
H/N 
P.B 
REC 
R REC
L REC
POP REDUCE
R NF
L  NF
R NF
L  NF
L
R
L
R
20
7
18
8 17
13
21
4
5
2
3
22
6
9
16
12
11
1
23
24
VCC
AC BIAS 
ERASE
HEAD
L-CH
R-CH
P.B 
REC 
REC MUTE 
REC
P.B
PB_MUTE
S-MUTE
C2B_DI
C2B_CE
C2B_DO
C2B_CL
D_GND
W
U
V
R
S
T
O
TO MICOM SECTION
Q507
Q508
JK501
AUX IN 
Q509
Q501
Q502
IC502
LC75341
AUDIO
PROCESSOR
IC503
NJM4558M
MOTOR DRIVER
R-CH 
L-CH
24
23
21
18
17
16
15
14
13
12
11
10
9
8
7
4
3
2
1
LSEL0
RSEL0
RIN
VDD
CLK
LIN
VSS
CE
DI
A_+B
A_-B
L_CH
TO MICOM
SECTION
C2B_DO
C2B_CL
C2B_DI
C2B_CE
CD
TUNER
TAPE
AUX
REC_R-CH
TAPE_L
TO MICOM
SECTION
TO MICOM
SECTION 
CD_L
8
7
5
4
3
1
a
d
f
g
k
l
+B
+B
-B
SWITCHING
SYSTEM
MUTE 
REC_L-CH
TO POWER
SECTION
CNS940
Q119
Q120
IC102
BA3126N 
HEAD
SELECTOR
Q101
Q102
CNP102
Q116
Q114
Q115
IC101
AN7345K
PLAYBACK AND 
RECORD/PLAY BACK
AMP.
SWITCHING 
BIAS
BIAS OSC. 
SWITCHING 
RECORD/ 
PLAYBACK
HEAD
9 
5
7 
6 
8
4 
3 
2 
1 
REC_MUTE
REC_CONT
REC_L-CH 
REC_R-CH 
TAPE_R-CH
TAPE_L-CH
REC_BIAS
A_+10V
M_+10V
BIAS_GND
A_GND 
L-CH
REC_L-CH
A
B
C
D
1
2
3
4
5
6
7
8
L
R
L
R
L
R
L
R
L
R
L
R
FROM MAIN PWB
A_GND 
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