QT-CD210 (serv.man3) - Sharp Audio Service Manual (repair manual). Page 12

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QT-CD210H/W
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• The numbers   
1 
 to 
 17 
 are waveform numbers shown in page 17.
Figure 12 SCHEMATIC DIAGRAM (1/2)
C856
0.001
C832
47/16
C22
0.1/50 
L80
0.82
D801
1N4004
L4
AM OSC.
Q803
KRC107 M
SWITCHING
R850
1.5K
Q802
KTA1273 Y
SWITCHING
C806
330/16
C805
0.022
C21
2P(CH) 
R3
220K
C13
220/10
R126
100
C122
0.01
R10
2.2K
R11
2.2K
COR1
CORE
SW201-C
SW201-B
C1
0.022
C20
0.047
C2
18P
(CH)
T3
CF3
460KHz
C14
0.022
IC1
TA2111N
9
8
7
6
5
4
3
2
1
T2
F1
FM BAND
PASS FILTER 
D1
1N4148
R2
2.7K
C4
4P(CH)
C3
24P(UJ)
L2
VC3
CNP101
BI802 
BI801 
C817
100/10
D2
1N4148
R6
100
C854
0.0068
C807
0.047
R456
15K
R455
15K
R457
1K
R458
1K
R7
120
R853
2.2K
R852
2.2K
R110
120
D101
1N4148
R123
3.3K
R124
3.3K
R851
2.2K
C816
0.022 
IC801
TA2109F
24 
23
22 
21 
20 
19 
18 
17 
16 
15 
14 
13 
12 
11 
10 
9
8
7
6
5
4
3
2
1
C814
0.047
C813
47/16
C106
0.0027
R106
10K
R114
8.2K
R105
10K
C107 820P
C114
47/16
D102 1N4148
C118
10/16
R102
150
C109
270P
R109
120
C115
0.018(ML)
R116
3.9K
R115
3.9K
C111
330P
C105
0.0027
R122
1.8K
R802
2.2K
C815
47/16
BI803 
R120
3.3K
C110
270P
C113
47/16
C802
0.022
C804
2P
(CH)
R811
22K
R5
3.3K
C6
330P
CF1
10.7MHz
C11
0.47/50
C15
10P
(CH) 
R1
330
C12
4.7/50
C17
1/50
C19
0.01
(ML)
C16
1/50
C18
0.01(ML)
R9
10K
C10
1/50
C7
2.2/50
C9
0.1/50
C8
0.1/50
R4
2.2K
R8
10K
R820
47K
R833
3.3K
C841
0.047
C833
0.033(ML)
C838
0.047(ML)
R830
10K
C839
0.047(ML)
R831
3.3K
C835
470P
C834
470P
R827
15K
C836
0.047(ML)
C825
47/16
C826
47P
C837
0.047(ML)
R828
10K
C829
0.0047
C828
0.0027
C830
0.01(M
C123
220/10
C822
0.047
   Q801
KTA1266 GR
 SWITCHING
C818
56P
C821
100/10
R803
82K
C117
10/16
IC101 
BA3311L 
9
8
7
6
5
4
3
2
1
C108
820P
R121
1.8K
C116
0.018(ML)
R801
22
C863
47/16
C842
0.047
C843
47/16
IC803
LA6541D
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
R804
68K
C819
0.1(ML)
R117
3.9K
R113
8.2K
C820
0.1(ML)
R806
2.7K
R805
39K
R807
1K
L301
BIAS OSC.
C351
0.0022
(ML)
R
1
C121
0.01
C120
47/16
C119 2.2/50
R125
680K
C112
330P
R101
150
R118
3.9K
R351
100
C3
0.
C352
100/10
R119
3.3K
R104
12K
R103
12K
C801
0.01
SW102-A 
SW102-F 
SW102-E 
SW102-B 
SW102-C 
SW102-H 
SW102-G 
SW102-D 
NC
NC
NC
NC
NC
CNS101
FM
AM
4
3
R-CH
L-CH
TRO 
FOO 
DMO 
FMO 
VCC
VREF
CD
RES
REG IN
REG OUT
VIN4
VIN3
VIN2
GND
GND
GND
GND
GND
GND
VG4
VG3
VG2
VO4-
VO4+
VO3-
VO3+
VO2+
VO2-
VO1-
VO1+
VG1
VIN1
MT
VCC
AM OSC.
FM ANT
ST LED
TUN LED
AM RF
IN
FM RF
OUT
RF GND
L3
AM BAR ANTENNA
LPF1
AM/FM
LPF2 VCO
GND
AM IF IN
FM IF IN
AM AGC
AM LOW CUT
CNS802
CNS801
CNS803
R-CH(CD)
L-CH(CD)
RF
VCC
FM
OSC
AM
OSC
VCC
FM
AFC
DET
MPX IN
CNP803
FM ROD
ANTENNA 
ALC T
FILTER
VCC
GND 
NF1
NF2 
IN2 
IN1
OUT2
OUT1
R
P 
R 
R
P
R
P
P
P
R
R
R
R
L-CH
R-CH
PRE  AMP
ERASE  HEAD
TAPE
AM
FM
CD
CD
TAPE
FM OSC.
AM ANT
FM OSC.
AM IF
L-CH
R-CH
FM RF IN
MIX OUT
FM DET
P
+ 
+ 
- 
- 
SP+ 
SP- 
SL+ 
SL- 
PU-IN 
LD
K 
E 
E 
K 
LD
VR
PD
G 
B 
B 
A
F
F
C
TR+
TR-
FO+
FO-
R-
R+
F+
F-
2200P
2200P
PICK-UP  UNIT
CD MOTOR PWB-B
M701
SLED
MOTOR
M702
SPINDLE
MOTOR
FC- 
FC+ 
TR- 
TR+ 
GND 
PD
VR
LD
GND 
K 
F 
B 
E 
A 
VCC 
FNI 
FPI 
TPI 
TNI 
MDI 
LDO 
SEL 
TEB 
2VRO
TEN 
TEO 
RFN
GND
RFO
AGCI
RFGC
RFGO
RFIS
RFRP
VRO
FEN
FEO
SBAD
MON 
1M
1M
SLT-
SLT+
FM- 
FM+ 
DM- 
DM+ 
6 
4 
3 
2 
1 
13
17
16
15
14
12
8
9
10
11
2
1
3
1
6
2
4
5
3
16 17 18
4
4
5
6 5 4
1
5
4
3
2
6
5
5
6
7
8
1
2
3
4
9 8 7
3 2 1
2
1
3
4
3
2
1
2
1
3
2
M
3
1
19 20 21
5
1
2
3
4
4
3
2
1
M
1
4
6
3
2
1
1
2
3
22 23 24
2
3
4
5
6
1
5
1
2
3
4
2
8
7
6
4
13 14
15
12 11
10
2
5
6
7
8
3
4
5
6
1
2
SW702
PICKUP IN
A
NC
NC
NC
NC
NC
NC
1
2
3
L1
FM IF 
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
1  2  3 
10 11 12
13
14
15
16
17
18
19
20
21
22
23
24
11
12
10
P
P
NC
VC1
VC2
VC4
TC3
TC4
TC2
TC1
NC
NC
NC
IC801
SERVO PRE AMP.
TA2109F
IC803
FOCUS/
TRACKING/
SPIN/
SLED DRIVER
LA6541D
IC1
FM/AM IF MPX.
TA2111N 
FM IF
AM IF
SW102
RECORD/PLAYBACK
SW102
RECORD/
PLAYBACK
IC101
REC./
P.B. EQUALIZER AMP.
BA3311L
SW201
FUNCTION
SELECTOR
MAIN PWB-A1
RECORD/
PLAYBACK HEAD 
TAPE
SW102
RECORD/
PLAYBACK
SW
R
PL
FM  DETECTION
9
8
7
6
5
4
3
2
1
12
11
10
PIN
NO.
VOLTAGE
IC1
0.82V(0V)
0V(0V)
0.35V(1.03V)
3.81V(3.82V)
0V(0.13V)
3.92V(3.86V)
3.39V(3.18V)
3.92V(3.86V)
0V(0V)
0V(0.14V)
0.32V(0.32V)
3.14V(3.29V)
21
20
19
18
17
16
15
14
13
24
23
22
PIN
NO.
VOLTAGE
1.22V(1.22V)
1.22V(1.22V)
3.20V(3.14V)
3.14V(3.92V)
0.7V(0.70V)
1.08V(1.01V)
0.4V(1.02V)
3.92V(3.85V)
3.92V(3.86V)
3.92V(3.86V)
3.92V(3.86V)
3.92V(3.82V)
(    ): AM
9
8
7
6
5
4
3
2
1
12
11
10
PIN
NO.
VOLTAGE
IC801
4.84V
2.04V
2.04V
2.12V(0V)
2.11V(0V)
0.18V(0V)
2.84V(0V)
2.41V(0V)
2.05V
4.08V
2.05V
2.08V
21
20
19
18
17
16
15
14
13
24
23
22
PIN
NO.
VOLTAGE
2.86V(0.99V)
2.12V
2.05V
2.05V
2.63V(1.15V)
2.04V
2.07V
2.17V
2.04V
1.47V(0.77V)
0V
2.05V
(    ): CD STOP
9
8
7
6
5
4
3
2
1
15
11
10
PIN
NO.
VOLTAGE
IC803
8.15V
1.08V
2.12V
2.10V
4.0V
3.42V
0V
0V
0V
3.85V
3.60V
2.09V
2.09V
6.02V
7.47V
24
23
22
21
20
19
18
17
16
30
26
25
PIN
NO.
VOLTAGE
0V
0.24V
2.13V
2.09V
4.03V
3.38V
0V
0V
0V
3.70V
3.71V
2.09V
2.11V
2.10V
8.14V
13
12
14
28
27
29
3.72V
(5.0V)
(  ): CD STOP
1.87V
(1.45V)
2.97V
(4.39V)
(  ): CD STOP
8.21V
(8.3V)
8.15V
(8.3V)
7.48V
(7.59V)
0V
(0V)
0V
(0V)
4.97V(5.0V)
1.88V
0V
0.6V
0V
0V
0V
0V
4.67V
0V
4.62V
0.6V
1.89V
VOLTAGE: 
PLAY and REC
AM
TRACKING
fH
fL
TC3
L3
AM BAND
COVERAGE
fH
fL
TC4
L4
FM BAND
COVERAGE
fH
fL
TC2
L2
FM
TRACKING
fH
fL
TC1
L1
SW102
RECORD/
PLAYBACK
SW102
RECORD/
PLAYBACK
+B
+B
+B
+B
+B
+B
2
3
8
9
10
C5
2P(CH)
L107
CHOKE
COIL
L108
CHOKE
COIL
Display
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