Sharp QT-CD131H (serv.man2) Service Manual ▷ View online
QT-CD131H/132H
– 9 –
Figure 9 BLOCK DIAGRAM (1/3)
62
51
37
46
56
39
55
38
54
33
53
32
11
8
4
2
4
2
21
25
20
38
34
35
36
~
+5V
FOCUS COIL
TRACKING COIL
PICKUP UNIT
3
10
19
23
25
1
2
17
11
18
12
49
50
52
53
51
54
Q804
+5V
23
6
63
43
64
10
44
12
45
9
14
13
43
16
44
17
18
19
20
15
32
40
1
61
58
57
CL, DAT, SELIAL CONTROL
CONSTANT
VOLTAGE
REGULATOR
16
27
31
28
15
30
29
M
M
MOTOR
SLIDE
MOTOR
SPIN
1
2
3
4
9
~
~
17
14
14
XIN
XOUT
K1
CD
OPERATION
KEY
SW771~SW774
LID
SW761
OPEN/CLOSE
~
~
57
24
27
28
31
30
60
41
44
33
22
23
37
CD LCD
LCD701
PICKUP IN
PU-IN SW
19
13
14
SL+
SL–
+7.4V
(CD)
1
2
3
4
5
6
7
GND (A)
R-CH
L-CH
GND (D)
POWER GND
+7.4V (D)
SECTION
MAIN
TO
VVDD
XIN
XOUT
VDD
XVDD
EFMO
EFMIN
CLV+
CLV–
V/P
HFL
TES
TOFF
JP–
JP+
TGL
RES. CQCK. COIN
SQOUT. RWC. WRQ
LCHO
LC78622E
IC802
SERVO/SIGNAL
CONTROL
16.93MHz
XL801
SLI
SLC
CV+
JP–
DRF
CE
DAT
CL
CLK
THLD/DEF
CE
DAT
CL
CLK
THLD/DEF
SLD
SLEO
SPO
FD
TO
TO
SL+
SL–
F
E
FIN1
FIN2
64
62
+5V
Q805
VCC1
LDO
LASER
DRIVER
SERVO AMP.
LA9240M
IC801
22
2
+7.4V
7
5
6
8
28
26
13
27
IC804
BA5914FP
FOCUS/TRACKING
/SPIN/SLIDE
DRIVER
M701
M702
SW702
RES
SL–
DRF
WRQ
RESET
VLC3
VDD
+5V
(D)
4MHz
X701
IC701
IX0105AW
SYSTEM
MICROCOMPUTER
COM0
SEG1
SEG4
COM3
CD LID
MUTE
QT-CD131H/132H
– 10 –
Figure 10 BLOCK DIAGRAM (2/3)
6
5
1
8
2
2
3
4
5
6
7
10
11
12
5
1
8
9
6
12
IC202
LA4597
POWER AMP.
L
VOLUME
X-BASS
132H
ONLY
SW203
A,B
SURROUND
SW202
A,B
VR201
A,B
STANBY
R
5
6
2
2
1
3
3
7
1
IC203
KIA7808P
VOLTAGE
REGULATOR
+B2
+B1
SP501
SPEAKERS
SP502
SO651
SW201-C
POWER/
FUNCTION
AM / FM
SELECT
+B
FM +B
SW201-D
POWER /
FUNCTION
RADIO
TAPE
REC
POWER/
FUNCTION
SW201-A,B
FROM TUNER
SECTION
IC2-9,10PIN
CD
EC / PB
SW102
A,F
P. B
REC
IC101
EQULIZER
AMP.
BA331IL
REC
REC
P.B
P.B
P.B
L
R
L
R
SW102
REC / PB
B.D
REC / PB
SW102
C,E
L-CH
REC / PB
HEAD
R-CH
(AUDIO GND)
+7.4V
+B2
(DIGITAL GND)
(POWER GND)
FROM
CD/DISPLAY
SECTION
R-CH
ERASE
HEAD
SW102-H
REC / PB
BIAS
OSC.
C201
L201
SW102-G
REC / PB
+B1
M601
TAPE
MOTOR
SW601
MAIN
D651~D654
RECTIFIER
TUNER
+B
BACK UP
+B
T601
POWER
TRANSFORMER
BATTERY
DC12V
["D" SIZE (UM/SUM-1,
R20 or HP-2)BATTERYx8]
BATTERY
DC3V
["AA" SIZE (UM/SUM-3,
R6 or HP-7)BATTERYx2
FOR TUNER MEMORY]
AC INPUT
AC 230-240V
50Hz
L-CH
IC201
KIA4558S
SURROUND AMP.
F651
T1.25A L
250V
MUTE
L-CH
R-CH
QT-CD131H/132H
– 11 –
Figure 11 BLOCK DIAGRAM (3/3)
X IN
FM IN
X OUT
VSS
AM IN
IF IN
VT
AM MIX OUT
X1
4.5MHz
DOUT
DATA
CLOCK
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
T2
FM DET
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 RF AMP.
FM+B
FM ROD ANTENA
SWITCHING
MUTE
24
22
20
18
13
16
10
15
9
9
1
2
8
7
6
5
3 4
5
6
12
11
10
1
22
13
14
1
6
3 4
9
7
8
IC3
TC9216P
PLL CONTROLLER
+B
21
+B
IC2
LA1805
FM IF DET.
/FM MPX./AM IF
IC1
TA7358AP
FM FRONT END
5
T3
AM IF
Q5 Q6
Q10
AM OSC OUT
VT CONTROL
Q3 Q4
L3
AM ANT.
VD3-1
TC1
L4
AM OSC.
VD3-2
23
24
31
45
44
43
50
51
1
6
7
8
9
65
80
41
48
33
30
22
20
SW504 MEMORY SW503 TUNER UP SW502 TUNER DOWN SW501 BAND SW505 PRESET UP SW506 PRESET DOWN
LCD501
LCD DISPLAY
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 TUNER
MICROCOMPUTER
Q501 Q502
TUNER +B
IC502
RESET
RESET
A-GND
AUDIO
+12V
+5V
VOLTAGE
REGULATOR
ZD1
D GND
TUNER +B
QT-CD131H/132H
– 12 –
A
B
C
D
E
F
G
H
1
2
3
4
5
6
• The numbers
1
to
12
are waveform numbers shown in page 22.
Figure 12 SCHEMATIC DIAGRAM (1/6)
SW761
CD LID
OPEN/CLOSE
R871
4.7K
C845 4.7/50
C850
0.1
C848
1/50
R842
22
C849
0.022
Q805
S9012H
R831
1K
C701 0.022
R715
15K
R714
10K
X701
4.0MHz
R733 1K
R732 1K
R731 1K
R729 1K
R728 1K
R726 1K
R727
1K
R730
1K
R734
1K
R708
1K
C702 0.022
R736
1K
R713
1K
C705
0.022
C704
100/10
R711
2.7K
R710
10K
R709
1K
C811
0.1
R823
1.2K
C817
0.47/50
C820 0.0033
R825
1.2K
C819 47/16
C818
1/50
R824 10K
R830
1K
C816
0.001
0.001
R821 56K
C815
0.0047
R817
82K
R819
39K
R820
10K
R813
33K
C814
0.01
R816
1.5K
C812
330P
R815
47K
R814 10K
R829
1K
R812
15K
C813
0.1
R840
22K
R839
22K
R828
1K
C821
1/50
R810
82K
C832
27P(CH
R
33
33
0
R832
56K
C834
0.033
R836
47K
C833 0.001
C830
2P
(CH)
R835
470
R833
5.6K
C803
0.1/50
R806
100
100
C807
0.1/50
C806
0.033
0.033
R805
6.8K
C808
0.068
R811
3.3K
C809
0.047
R807
1K
R809
27K
C810
180P
R808
12K
C804
0.001
R804
2.2K
C805
0.033
R802
100K
R803
15K
C840
0.33/50
C839 1/50
C838 0.01
C837 10/16
C835 0.1/50
IC801
LA9241M
SERVO AMP.
48
48
47
46
45
44
44
43
42
41
40
39
38
37
39
38
37
36
35
34
33
34
33
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
R822
6.8K
GND
VREF
SLEQ
SLD
SL–
SL+
NC
SP
SPG
SP–
SPD
FIN2
FIN1
E
TD
TD–
TA
SCI
TH
TESI
TE-
TE
A GND
JP–
JP+
TGL
TOFF
TES
HFL
SLOF
CV-
CV+
RFSM
RFS-
SLC
SLI
GND
FSC
TBC
NC
DEF
CLK
CL
DAT
CE
FSS
VCC2
REFI
VR
LF2
PH1
BH1
LDD
LDS
VCC1
SEG16
COM0
COM1
COM2
COM3
VLC1
VLC2
VLC3
KIDSW AIN7
SIMUKE AIN6
AIN5
P3P40
P33
P33
P32
P30
VREF
XCIN
XCOUT
VDD
XOUT
XIN
RESET
PU-IN P23
WRQ P22
WRQ P22
SQOUT P21
DFR P20
D8 SL–
D7 SL+
D6 RWC
D5 COIN
D3 RES
D4 COCK
D1 MUTE
P10 POWER IN
P02
P01
P00
SEG0
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
+B5V
+B
DIGITAL GND
CO IN
CQCK
RES
CQCK
RES
R735 1K
64
63 62
61 60 59 58 57 56 55 545 3 5 2 51 50 49
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
17
8
7
6
5
4
3
2
1
1 2
2
3 4 5 6 7 8 9 10 1112 13 14 15 16
17
18
19
20
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
52
53
54
55
56
57
58
59
60
61
62
63
64
IC701
IX1015AW
SW773
FWD
R774
1.5K
SW774
REV
SW771
PLAY
SW772
STOP
R773
1.8K
R771
3.9K
R772
2.7K
R776
10K
+B
SWITCH PWB-A2
FW701
1
3
1
3
DRF
R827
220K
R826 220K
+B
LCD701
CD SIGNAL
C740
0.01
Q740
2SC1815GR
D740
1N4148
R741
3.3K
R740
4.7K
R743
100K
R742
1K
C741
3.3/50
R744
10K
D741
1N4148
R745
10K
+B
+B
R721
15K
R724
15K
R725
15K
R723 15K
R722 15K
R720 15K
R719 15K
R718 15K
R716
10K
MAIN PWB-A1 ( 1 / 3 )
@
JP
FD–
FD
TO
FA–
FA
FE
FE–
VSS
AVSS
P31
RWC
SL+
SL–
DRF
SQOUT
WRQ
PU IN
TB
F
SYSYTEM
MICROCOMPUTER
+B
+B
+B
LASER DRIVER
9
8
7
6
5
4
3
2
1
12
11
10
PIN
NO. VOLTAGE
IC801
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
0V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
0V
15
14
13
47
46
45
41
40
39
38
37
36
35
34
33
44
43
42
18
17
16
50
49
48
21
20
19
53
52
51
23
22
55
54
26
25
24
58
57
56
29
28
27
61
60
59
32
31
30
64
63
62
PIN
NO. VOLTAGE
PIN
NO. VOLTAGE
0V
2.5V
2.5V
0V
0V
2.4V
4.1V
4.7V
0V
0V
5V
5V
2.5V
2.5V
0.9V
0.9V
2.1V
4.2V
0V
5V
2.5V
2.5V
0V
0V
2.4V
4.1V
4.7V
0V
0V
5V
5V
2.5V
2.5V
0.9V
0.9V
2.1V
4.2V
0V
5V
9
8
7
6
5
4
3
2
1
12
11
10
PIN
NO. VOLTAGE
IC802
0V
0V
1.5V
0V
2V
5V
0.3V
0V
2.5V
2.5V
0V
0V
0V
5V
0V
4.8V
5V
5V
0V
0V
2.5V
0V
0V
1.5V
0V
2V
5V
0.3V
0V
2.5V
2.5V
0V
0V
0V
5V
0V
4.8V
5V
5V
0V
0V
2.5V
0V
41
40
39
38
37
36
35
34
33
44
43
42
15
14
13
47
46
45
18
17
16
50
49
48
21
20
19
53
52
51
23
22
55
54
26
25
24
58
57
56
29
28
27
61
60
59
32
31
30
64
63
62
PIN
NO. VOLTAGE
PIN
NO. VOLTAGE
2V
0V
0.1V
2.2V
0V
2.5V
0V
2.5V
0V
0V
0V
4.1V
4.1V
5V
0V
2.7V
2.4V
0V
0V
0V
0V
0.1V
2.2V
0V
2.5V
0V
2.5V
0V
0V
0V
4.1V
4.1V
5V
0V
2.7V
2.4V
0V
0V
0V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.2V
2.2V
0V
0V
5V
5V
4.8V
0V
5V
0V
0V
1.5V
2.4V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.2V
2.2V
0V
0V
5V
5V
4.8V
0V
5V
0V
0V
1.5V
2.4V
2.5V
2.5V
5V
0V
0V
0V
0V
0V
0V
5V
2.5V
0V
0V
0V
5V
4.7V
2V
0V
0V
2V
4.7V
0V
5V
2.3V
0V
0V
0V
0V
0V
0V
5V
2.5V
0V
0V
0V
5V
4.7V
2V
0V
0V
2V
4.7V
0V
5V
2.3V
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