Sony HCD-EH25 - DIAGRAMS; BLOCK DIAGRAM - CD SERVO Section

HCD-EH25/EH26
12
SECTION 7
DIAGRAMS
7-1. BLOCK DIAGRAM - CD SERVO Section -
SYSTEM CONTROLLER
IC701 (1/3)
CD-MP3 PROCESSOR
IC101
MUTE
2-AXIS
DEVICE
(TRACKING)(FOCUS)
95
89
A
AVDD
+3.3V
DETECTOR
FNi1 (A)
RFo
97 FPi1 (B)
88
2
AGCi
3RFRP RFZI
76TEi TEZi
83RFEQo 81 RFi
82 RFRPi
30LO
27RO
38BUS0
R-CH
94 FNi2 (C)
96 FPi2 (D)
100 TNi (E)
98 TPi (F)
91 LDo 92MDi
2VO1+
1VO1–
13 DMo
AUTOMATIC
POWER
CONTROL
Q301
LD
PD
LASER DIODE
OPTICAL PICK-UP
BLOCK
(KSM-213DCP)
B
C
D
E
F
12 FMo
10 TRO
9FMO
20 IO0 (/HSO)
I-V AMP
M401
(SPINDLE)
M402
(SLED)
12 VO2–
11 VO2+
18 VO3+
17 VO3–
26 VO4+
27
7
IN4’
24
IN3’
20
IN2’ 9
IN1
3
BIAS 23
84 VRo
VO4–
M
M
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE MOTOR DRIVE
IC401
S201
(LIMIT)
DVDD
+3.3V
24
XO
23
XI
X102
16.9344MHz
4 MMUT
A
CD-L
: CD PLAY
SIGNAL PATH
R-ch is omitted due to same as L-ch.
VCC
A
B
C
D
E
F
LD
PD
SP+
VC
SP–
SL+
SL–
T+
T–
F+
F–
5BUS0
39BUS1 6BUS1
40BUS2 (SO) 7BUS2
10 BUCK
41BUS3 (SI) 8BUS3
42BUCK (CLK)
11 XCCEN
43XCCE
54SBSY
48PIO0
3REQ
43 SBSY
37XRST
12 XRST
(Page 14)
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