Service manual

QT-CD121
– 11 –
Figure 11 SCHEMATIC DIAGRAM (2/4)
78 9101112
• NOTES ON SCHEMATIC DIAGRAM can be found on page 16.
L802
0.68µH
CNS803
CNP803
BI803
SW702
PICKUP IN
M702
SLED
MOTOR
M701
SPINDLE
MOTOR
CNS801
BI801
1
CNS802
BI802
R833
5.6K
R835
470
C830
2P
(CH)
C833
0.001
R836
47K
C834
0.033
R832
56K
C831
0.0027
R838
33K
R837
47K
C832
27P
(CH)
R834
1K
C822
220P
IC804
BA5914FP
FOCUS/TRACKING/SPIN/SLIDE DRIVER
C844
330/10
R810
82K
D802
1N4148
R849
100K
C851
0.022
C821
1/50
R826
220K
0
.
0033
R827
220K
C846
330/10
Q804
S8050D
R877
220
C889
10/16
ZD801
MTZJ5.6B
R878
100
C887
0.022
R875
10K
R876
10K
R873
100
C890
100/10
C867
10/16
R874
100
C868
10/16
XL801
16.93MHz
R880
100
C843
100/10
C873
0.01
L801
0.82µH
R860
1K
IC802
LC78623D
SERVO/SIGNAL CONTROL
C847
0.01
0.047
C842
27K
R857
1.2K
R856
C841
0.047
C802
47/16
R801
1K
C801
0.01
1K
C870
0.0022
C869
0.0022
R858
680
C850
0.1
C845
4.7/50
R871
4.7K
6
5
4321
6
5
4
3
2
1
6
5
4
3
2
1
6
5
4
3
2
1
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
30 31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
1
2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
15
16
33
34
33
34
35
36
37
38
39
41
40
42
43
44
45
46
47
48
49505152535455565758596061626364
47
48


0V
3.5V
3.5V
2.5V
2.5V
7.4V
7.4V
0V
0V
2.7V
3.8V
3.2V
3.5V
3.5V
2.5V
0V
0V
0V
0V
2.5V
2.5V
+3.8V
-3.2V
0V
4.8V
7.4V
5.5V
+B
AUDIO GND POWER GND DIGITAL GND DIGITAL +7.4V L-CH R-CH
+B
+B
+B
+B
+B
+B
+B
LD
VR
PD
GND
FO–
FO+
TR+
TR–
PD
VR
LD
E
K
C
B
A
F
MON
LD
FO–
FO–
FO+
FO+
TR+
TR+
TR–
TR–
F
B
A
E
K
+B
+B
+B
+B
+B
+B
+B
+B
PU-IN
SL–
SL+
SP–
SP+
FO+
FO–
TR–
TR+
TR+ TR– FO– FO+
K
A
B
E
F
CLK
DEF
NC
TBC
FSC
GND
SLI
SLC
RFS–
RFSM
CV+
CV–
SLOF
HFL
TES
TOFF
JP– SL+ SL–
TEST1
CS
TEST5
4.2M
16M
TST11
RES
CQCK
COIN
RWC
SQOUT
WRQ
FSX
SBCK
EFLG
SFSY
SBSY
PW
XVSS
XIN
XOUT
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
VIN4'
BIAS IN
VCC
VCC
VIN3'
VIN3
VO3+
VO3–
OP IN +
OP IN -
OP OUT
GND
VO2-
VIN1'
NC
NC
GND
VIN2
VIN2'
VO2+
MUTE
VO1-
VIN1
VO1+
CD MOTOR PWB-B
P12 1 - E
TO MAIN SECTION
PICKUP UNIT
M
M
47
46
45
50
49
48
53
52
51
55
54
58
57
56
61
60
59
64
63
62
G
E
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