Sharp QT-CD141H User Manual / Operation Manual ▷ View online
QT-CD141H/161H//162H
– 13 –
Figure 13 BLOCK DIAGRAM (3/3)
X IN
FM IN
X OUT
VSS
AM IN
IF IN
VT
AM MIX OUT
X1
4.5MHz
DOUT
DATA
PERIDO
OF1
CF2
AM IF IN
AM OSC
AM MIX OUT
FM IF IN
AM IF IN
GND
AM RF IN
FM DET
DET OUT
STEREO
TUNER
MPX VCO
MPX IN
R-CH OUT
L-CH OUT
MO/ST
FM DET.
T2
VR1
VCO
FM+B
FM RIPPLE
FILTER
TO MAIN
SECTION
CF1
VT
VT
F1
B.P.F
L1
VD1
FM RF
L2
VD2
FM OSC.
T1
FM IF
Q1
FM+B
FM ROD
ANTENA
24
22
20
18
13
16
10
15
9
1
3
8
7
6
5
3
4
5
6
12
11
10
2
1
13
14
1
6
3
4
9
7
8
IC3
TC9216P
PLL
+B
21
+B
+B
IC2
LA1805
FM/AM IF APX.
IC1
TA7358AP
FM FRONT END
5
T3
AM IF
Q5
Q6
Q6
AM OSC OUT
VT CONTROL
Q3
Q4
L3
AM ANT.
VD3-1
TC1
L4
AM OSC.
VD3-2
23 24
3
4
5
6
19
20
18
25
13
14
11
15
72
56
79
76
27
24 31
30 23
12
22
16 10 7
17
SW504
MEMORY
SW503
BAND
SW502
TUNER DOWN
SW501
TUNER UP
SW505
PRESET DOWN
SW506
PRESET UP
MEMORY
SW503
BAND
SW502
TUNER DOWN
SW501
TUNER UP
SW505
PRESET DOWN
SW506
PRESET UP
LCD DISPLAY
LCD501
11
10
10
9
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
12
13
14
15
16
17
18
19
20
21
MONO/ST
IC501
CD/TUNER CONTROL
MICROCOMPUTER
Q501
Q502
TUNER
+B
IC502
RESET
RX501
RESET
A-GND
AUDIO
+12V
+12V
+5V
VOLTAGE
REGULATOR
ZD1
D GND
TUNER +B
SW507
CD LID
CD LID
OPEN/CLOSE
,
SW702
PICKUP IN
~~
TO CD
SECTION
XL501
4.19 MHz
RF AMP.
CLOCK
1
2
3
Q10
161H/162H
ONLY
SWITCHING
QT-CD141H/161H/162H
– 14 –
• The numbers
1
to
12
are waveform numbers shown in page 25.
Figure 14 SCHEMATIC DIAGRAM (1/6)
A
B
C
D
E
F
G
H
1
2
3
4
5
6
R813
33K
R830
1K
C804
0.001
R804
2.2K
R808
12K
C806
0.033
0.033
C845
4.7/50
R871
4.7K
R842
22
C848
1/50
C808
0.068
R805
6.8K
C805
0.033
0.033
R802
100K
R858
680
C850
0.1
R816
1.5K
C814
0.01
C820 0.0033
R827
220K
R823 1.2K
C811
0.1
C812
330P
C817
0.47/50
R824
10K
C810
180P
R803
15K
C834
0.033
R832
56K
C831
0.0027
0.0027
R838
33K
R810
82K
D802
DS1SS133
R849 100K
C851
0.022
C821
1/50
R828
1K
C807
0.1/50
C839 0.1
L8
0.68
Q802
KTA1273 Y
C846 330/10
C887 0.022
R839
22K
R840
22K
C813
0.1
R812 15K
R829
1K
R814
10K
R815
47K
R837
47K
C832
27P(CH)
R834
1K
C822
220P
C809
0.047
0.047
R811
3.3K
R822
6.8K
IC801
LA9241M
SERVO AMP.
48
47
48
47
47
46
45
44
45
44
43
42
42
41
40
39
38
39
38
37
36
36
35
34
33
34
33
34
33
33
16
15
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
2
1
C837 10/16
C838 0.01
C835 0.1/50
C840 0.33/50
R820
10K
R819
39K
R817
82K
C815
0.0047
C819
47/16
R825
1.2K
R826
220K
R835
470
C830
2P
(CH)
C833
0.001
R836
47K
R809
27K
R807
1K
R806
100
C803
0.1/50
R833
5.6K
R821 56K
C816
0.001
C842
0.047
0.047
R85
27K
27K
R856
1.2K
C841
0.047
0.047
R831
1K
Q801
KTA1266GR
LASER
DRIVE
C849
0.022
RES
CQCK
CO IN
RWC
SL+
SL–
DRF
SQOUT
WRQ
PU IN
D-GND
R-CH
POWER GND
VCC1
NC
TBC
TBC
FSC
GND
SLI
SLC
RFS–
RFSM
CV+
CV–
CV–
SLOF
HFL
TES
TOFF
TGL
JP+
JP–
A GND
FE–
FE
FA–
FA
TO
JP
TE
TE–
TESI
TH
SCI
TA
TD–
TD
TB
F
E
FIN1
FIN2
FD–
FD
SPD
SP–
SPG
SP
NC
SL+
SL–
SLD
SLEQ
VREF
GND
+B 7.4V
L-CH
AUDIO GND
64
63 62
61 60 59 58 57 56 55 54 53 52 51 50 49
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
2
3
4
5
6
7
8
9
3
4
5
6
7
8
9
10
11
11
1
15
13
14
14
16
42
+B
+B
C818
1/50
LDS
LDD
BH1
PH1
LF2
VR
REFI
VCC2
FSS
DRF
CE
DAT
CL
CLK
DEF
MAIN PWB-A1(1/4)
CD SIGNAL
P19 9 - H
TO DISPLAY SECTION
P16 1 - G,P19 8 - B
TO POWER,DISPLAY
SECTION
QT-CD141H/161H//162H
– 15 –
Figure 15 SCHEMATIC DIAGRAM (2/6)
• NOTES ON SCHEMATIC DIAGRAM can be found on page 10.
7
8
9
10
11
12
R876 10K
R873
100
C890
100/10
C867
10/16
R874
100
C868
10/16
R875 10K
C870
0.0022
C869
0.0022
R858
680
XL801
16.93MHz
R880
100
C843
100/10
C873
0.01
L801
0.82
µ
H
L802
0.68
µ
H
Q802
KTA1273 Y
C846 330/10
C844
330/10
C887 0.022
C888 0.01
R860
1K
IC802
LA78623D
SERVO/SIGNAL
CONTROL
48
47
48
47
47
46
45
45
44
43
42
41
40
43
42
41
40
39
38
37
36
35
34
35
34
33
34
33
33
16
15
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
2
1
C847
0.01
C842
0.047
0.047
R857
27K
27K
R856
1.2K
C841
0.047
0.047
C802 47/16
R801
1K
C801
0.01
1
2
3
2
3
15
16
30
IC803
LA6541
FOCUS/TRACKING/
SPINDLE/SLED DRIVER
FO+
FO–
TR–
TR+
TR+
TR–
FO–
FO+
K
A
B
E
F
TEST1
CS
TEST5
4.2M
16M
TST11
RES
CQCK
COIN
RWC
SQOUT
WRQ
FSX
SBCK
EFLG
SFSY
SBSY
PW
XVSS
XIN
XOUT
XVDD
XVDD
MUTER
RVDD
RCHO
RVSS
LVSS
LCHO
LVDD
NC
MUTEL
TEST4
TEST3
DOUT
C2F
EMPH
CONT5
CONT4
CONT3
CONT2
CONT1
VDD
FSEQ
PCK
JP-
JP+
TGL
TOFF
TES
HFL
V/P
CLV–
CLV+
TEST2
EMFIN
EMFO
Vss
FR
VVDD
ISET
VVss
PDO
TAI
DEFI
GND
VO4–
VO4+
VIN4
VIN4G
BIAS IN
VCC
VG3
VIN3
VO3+
VO3–
GND
VO2–
RESET
REG OUT
REG-B
REG-B
GND
VIN2
VG2
VO2+
MUTE
VO1–
VIN1
VO1+
GND
GND
GND
VCC
VG1
CD
TUNER GND
6 4 6 3 6 2 1
6 6 0 5 9 5 8 5 7
6
5
5 5 5 4 5 3 5 2 5 1 0
5 4 9
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
4
5
6
5
6
7
8
9
8
9
10
11
12
13
14
11
12
13
14
17
18
19
20
21
22
23
24
25
26
27
28
29
+B
+B
PU-IN
SL–
SL+
SP–
SP+
1
BI802
2
3
4
5
1
BI801
2
3
4
5
6
7
8
3
4
5
6
7
8
6
5
4
3
2
1
BI803
6
5
4
3
2
1
CNS803
1
CNS802
2
3
4
5
1
CNS801
2
3
4
5
6
7
8
3
4
5
6
7
8
6
5
4
3
2
1
CNP803
CD MOTOR PWB-B
M
M702
SLED
MOTOR
M
M701
SPINDLE
MOTOR
SW702
PICKUP IN
PD
VR
LD
E
K
C
B
A
F
M0N
LD
FO–
FO+
TR+
TR–
TR–
F
B
A
E
K
1
2
3
4
5
1
2
3
4
5
6
7
8
2
3
4
5
6
7
8
LD
PD
GND
FO–
FO+
TR+
TR–
VR
PICKUP UNIT
+
+
–
–
QT-CD141H/161H/162H
– 16 –
Figure 16 SCHEMATIC DIAGRAM (3/6)
• NOTES ON SCHEMATIC DIAGRAM can be found on page 10.
A
B
C
D
E
F
G
H
1
2
3
4
5
6
C252
0.022
D303
1N4004
R457
1K
R458
1K
R456
6.8K
R455
6.8K
C351
0.0022
(ML)
C352
220/10
Q351
KTC8050D
R354
10
R353
47K
C353
0.0056
(ML)
R351
220
R352
150
L301
C354 0.022(ML)
R123
8.2K
R121
1K
SW201-A
R154
5.6K
R156
6.8K
R350
82
R160
161H/ 141H:47K
162H:56K
R162
27K
C154
0.027(ML)
C152
0.027
(ML)
R164
27K
R168
680K
SW201-B
R153
5.6K
R155
6.8K
R157
27K
C151
0.027
(ML)
R163
27K
C157
0.01(ML)
R167
680K
R165
27K
C159
161H/141H:0.22/
162H:1/50
R169
4.7K
C153
0.027(ML)
C155
330P
C156
330P
C158
0.01
(ML)
R159
161H/ 141H:47K
162H:56K
R161
27K
R124
8.2K
R104
22K
R105
15K
C108
820P
C107
820P
R101
330
R102
330
R103
22K
C105
0.0018
R106
15K
C106
0.0018
R109
120
C116
0.018
(ML)
C113
47/16
IC101
BA3311L
REC./P.B.
EQUALIZER
10
9
8
5
2
R114
8.2K
R116
3.9K
C118
10/16
R113
8.2K
R115
3.9K
R117
3.9K
C117
10/16
C115
0.018(ML)
R118
3.9K
R125
680K
C120 47/16
C119
2.2/50
R119 3.3K
R120
3.3K
D102
DS1SS133
D101
DS1SS133
C122
0.01
C121
0.01
R122
1K
R110
120
C114
47/16
C110
270P
R108
1K
R107
1K
C111
330P(B)
C112
330P
C109
270P(B)
C123 220/10
D103
DS1SS133
SW202-A
X-BASS
SW102-G
SW102-E
SW102-D
SW102-H
SW102-B
SW102-C
FUNC(CD)
+7.4V
P19 7 - A,11 - H
TO DISPLAY
SECTION
P14 2 - H
TO CD SECTION
BACK UP
D GND
TUNER +B
GND(A)
L-CH
R-CH
P18 3 - A,4 - A
TO TUNER SECTION
SW202-B
X-BASS
OFF
ON
OFF
ON
TAPE
TAPE
TUNER
PRE AMP
ERASE HEAD
R-CH
L-CH
R
R
R
R
P
P
P
P
R P
R-CH
AUDIO GND
L-CH
CD +7.4V
DIGITAL GND
POWER GND
MUTE
CD
CD
TUNER
P R
R P
P
R
OUT1
OUT2
IN1
IN2
NF2
NF1
GND
VCC
FILTER
ALC T
1
1
2 2
3
3
4
4
CNS101
CNP101
3 1
12
7
6
4
11
SW102-A
SW102-F
40
28
32
23
22
21
22
21
44
42
43
12
16
15
14
15
14
13
1
FM SIGNAL
CD SIGNAL
PLAYBACK SIGNAL
RECORD SIGNAL
+B
+B
+B
+B
MAIN PWB-A1(2/4)
BIAS OSC.
Q151
KTC3199GR
R166
27K
C160
161H/141H:0.22/50
162H:1/50
R170
4.7K
R
2
D1
DS
Q152
KTC3199GR
+B
BIAS OSC.
R158
27K
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