Sony HCD-VX777, Руководство по обслуживанию

Страница: 21 / 84

21 21
HCD-VX777
6-2. BLOCK DIAGRAMS
– TUNER/CD SECTION –
: FM
: AM
: CD
• Signal Path
• RCH is omitted
: DIGITAL OUT
FM 75
Ω
G
AM
TM1
ANT IN 1 7 IF OUT
8 OSC OUT
5 VT
FE1
VX777 MODEL
JR9
+B A+12V
Q2
FM
10
FM OSC
16
AOUT 20
AIN 19
PD
18
PLL
IC51
12 FM/AM IF
7 FM
15 AM OSC
9 VCO STOP
8 IF REQ
6 DO
4 DI
5 CL
3
CE
XIN 1
XOUT 22
X51
4.5MHz
RF IF
AMP
Q1
CF1 CF2
DO
DI
CL
CE
2
11
4 9
RB4
6 3
10
7
8
1
2 AM MIX OUT
FM 11
OSC FM 24
VCO STOP
12
IF REQ MUTE 10
AM RF IN 21
AM OSC 23
VCC 9
FM IF 1
AM/FM IF MPX
IC11
13 L OUT
14 R OUT
BUFFER
Q11
LPF11
LPF
4 AM IF IN
IF11
R-CH
A
MAIN
SECTION
6 TUNED
7 STEREO
RV11
ST MUTE 21
CE 22
CL
27
MC DI 25
MC DO 23
STEREO 2
TUNED 3
MASTER CONTROL
IC501(1/2)
DO
CL
CE
DI
DI
L-CH
TBL ADDRESS
SENSOR
49 T SENS
IC711
48
BU UP/DOWN SW
46 OPEN SW
47 CLOSE SW
44 MTR CNT2
OPEN/CLOSE
S701
BU UP/
DOWN
S711
45 MTR CNT1
MOTOR
DRIVE
9
7
4
2
M
IC701
TURN
MOTOR
M721
(Page 23)
OPTICAL
PICK-UP
BLOCK
(A, MAX3)
+5V
LD
DRIVE
Q101
RF AMP
IC103
VC 27
A 6
B 7
C
8
D 9
E 10
F
11
LD 1
PD 2
IC102 MOTOR/COIL DRIVE
VO1+ 47
VO1–
VO2+
VO2–
52
55
56
1
2
M
M102
SLED
MOTOR
5
10
M
M101
SPINDLE
MOTOR
35 IN1+
IN1–
IN2+
IN2–
IN3+
IN4R
34
32
31
26
27
24
8
MDP 25
SFDR
29
SRDR 30
TRDR 32
TFDR
31
FRDR 34
FFDR 33
STBY
DIGITAL SIGNAL PROC.
D/A CONV.
IC101
DIGITAL SERVO
64 D OUT
RFAC 50
29
RFDCI
28
RFDCO
16
FE
18 TE
22 VCC
12 SW
RFDC 43
FE 39
TE 41
SE
40
67
65
14
SSTP 26 DIGITAL
OUT
OPTICAL
CD
DIGITAL OUT
IC201
4
B
VIDEO
SECTION
5
6
7
8
3
69
15
76
77
71
2
66
S101
A+5V
LIMIT
SWITCH
IIC-DATA 30
IIC-CLK 29
XRST
I 2 C, DATA
I
2
C, CLK
XRST 43
A DATA
B CLK
L RCK
C2PO
DATA
XLT
CLK
SENS
S CLK
MUTE
CTRL1
SCOR
SUSQ
SQCK
XRST
XTAI
PCMD
B CLK
L RCK
C2PO
DATA
XLAT
CLOK
SENS
S CLK
MUTE
XTSL
SCOR
SQSO
SQCK
XRST
XTAI
LD ON
LPH
(Page 22)
VO4+
VO4–
VO3+
VO3–
IN3–
C
VIDEO
SECTION
(Page 22)
15
RFA
26 SSTP
: VIDEO