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5-1.
BLOCK DIAGRAM - CD SERVO Section -
AVDD
DETECTOR
+3.3V
VCC
A
A
B
B
C
C
D
D
E
E
100 TNi (E)
F
F
LASER DIODE
AUTOMATIC
LD
POWER CONTROL
Q301
PD
LD
PD
OPTICAL PICK-UP
VC
BLOCK
(KSM-213DCP)
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE MOTOR DRIVE
SP+
M401
M
(SPINDLE)
SP–
SL+
M402
M
(SLED)
SL–
2-AXIS
DEVICE
T+
T–
F+
F–
R-ch is omitted due to same as L-ch.
SIGNAL PATH
: CD PLAY
HCD-BX77DBi
SECTION 5
DIAGRAMS
95
FNi1 (A)
97 FPi1 (B)
RFo
89
88
AGCi
RFEQo
83
81 RFi
94 FNi2 (C)
82 RFRPi
96 FPi2 (D)
RFRP
3
2
RFZI
TEi
6
7
TEZi
98 TPi (F)
91 LDo
MDi
92
84 VRo
BUS0
IC401
BUS1
BIAS 23
BUS2 (SO)
2 VO1+
CD-MP3 PROCESSOR
BUS3 (SI)
IN1 3
13 DMo
IC101
1 VO1–
12 VO2–
IN2' 9
12 FMo
11 VO2+
18 VO3+
IN3' 20
10 TRO
17 VO3–
26 VO4+
IN4' 24
9 FMO
27
VO4–
MUTE
7
BUCK (CLK)
XCCE
S201
(LIMIT)
PIO0
DVDD
20 IO0 (/HSO)
+3.3V
SBSY
XRST
XI
XO
23
24
X102
16.9344MHz
LO
30
RO
27
R-CH
38
39
40
41
42
43
48
54
37
15
15
CD-L
SYSTEM CONTROLLER
IC301 (1/4)
3 CD BUS0
2 CD BUS1
1 CD BUS2
100 CD BUS3
70 CD CLK
69 CD CCE
68 MP3 IREQ
LOADING
CDM LOAD IN 85
M
MOTOR DRIVE
CDM LOAD OUT
84
IC311
S001
CDM SW (OPEN)
88
19 SBSY
DISC TRAY
59 CD RESET
OPEN/CLOSE DETECT
CDM SW (CLOSE)
87
OPEN
CLOSE
60 CD DRIVER MUTE
HCD-BX77DBi
A
(Page 17)
M001
(LOADING)
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