Service manual

CD-CH1500H/CD-CH1500W
– 16 –
Figure 16 BLOCK DIAGRAM (1/6)
TO MAIN PWB
(IC901)
LASER
DRIVER
Q5
TRACKING COIL
FOCUS COIL
PICKUP UNIT
KEY
SWB101-SWB110
Q1
Q3
Q4
IC2
TC9490F
SERVO/SIGNAL
CONTROL
X1
16.934MHz
IC6
TA2147F
SERVO PRE
AMP.
CNP1
IC5
BA5939S
FOCUS/TRACKING/
SPIN/SLED DRIVER
NSW1
PICKUP IN
NM2
SLED
MOTOR
NM1
SPINDLE
MOTOR
MOB1
MAIN CAM
MOTOR
MOB2
TRAY
MOTOR
+3.3V
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
/RST
GND
BUS1
T-MO_REV
T-MO_FOR
BUS3
BUCK
/CCE
CD/CD-RW_SEL
CD FUNC
33
32
31
30
29
28
27
26
25
24
23
22
PU-IN
CD_R-CH
CD_L-CH
CD_+B CD_+B
A_GND
C-MO_REV
C-MO_FOR
CD_GND CD_GND
BUS0 BUS2
CD-RW
CANB_B
CANA_E
CANA_C
CANA_A
TRAY_A
TRAY_C
TRAY_B
CANA_B
CANA_D
CANB_A
DVDD
DVSS
XI
XO
XVDD
XVSS
TESIN
DVSS
DVDD
SEL
VREF
DMO
AVDD3
FMO
TEBC
RFGC
TRO
FOO
SBAD
31
30
29
28
26
25
24
22
13
20
19
18
TEI
FEI
RFRP
RFI
PVREF
LPFO
LPFN
TMAX
AVSS
AVDD
RFCT
16
7
PDO
PVDD
DVSS
DVDD
/HSO
61
64
63
62
60
59
58
57
56
54
53
51
50
49
/RST /CCE BUCK
VSS
VDD BUS3 BUS2 BUS1 BUS0
DVSS
LO
RO
24
23
22
21
20
19
18
17
15
14
13
12
11
9
8
7
6
5
4
3
2
1
GND RFN RFO AGCI
RFGO
RFIS RFRP
FEO VRO
GVSW
SBAD
TEO
RFGC
TEB
SEL
FNI
FPI
TPI
TNI
MDI
LDO
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
M
M
M
M
TR+
FO+
TR–
SL+
SL–
SP–
SP+
FO–
+5V
VCC
17
3.3V
CONSTANT
VOLTAGE
SWITCHING
48
47
46
45
44
43
42
41
40
39
15
6
38
37
36
35
34
33
POWVCC PREVCC LOADING1 VCC LOADING2 VCC POWVCC PREVCC MUTE
+5V
+5V