Service manual

QT-CD111/111C
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Figure 8 BLOCK DIAGRAM (1/2)
62
51 37
46
56
39
55
38
54
33
53
32
11
8
42
21
25
20
38
34
35
36
2
31
~
+5V
FOCUS COIL
TRACKING COIL
PICKUP UNIT
3
10
19 23 25
1 2
17
11
18
12
49
50 52 5351
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
~~ 1714
XIN
XOUT
K1
CD
OPERATION
KEY
SW771~SW774
RC IN
LID
SW761
OPEN/CLOSE
SENSOR REMOTE
RX771
~~
57
24 27 28 31
60 41 44 30 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
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
SLD
SLEO
SPO
FD
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