Sony HCD-DX8, Service Manual

Page: 22 / 66

HCD-DX8
22 22
: FM
: AM
: CD (AUDIO)
• Signal Path
• R-CH: Same as L-CH.
: DIGITAL OUT
: CD (VIDEO)
FM 75
Ω
AM
ANTENNA
ANT IN 8 1 IF OUT
3 F OUT
4 VT
FE602
FM FRONT-END
+B A+12V
Q602
FM
10
FM OSC
15
VT1 IN 18
VT1 17
PD1 19
PLL
IC651
12 FM/AM IF
7 FM
14 AM OSC
2 VCO STOP
8 IF REQ
6 DO
4 DI
5 CL
3 CE
XIN 1
XOUT 24
X651
4.5MHz
IF
AMP
Q601
NULL
T601
B+ SWITCH
CF601 CF602
DO
CL
CE
1
13
3
4
5 5
12 2
14
15 11
6 7
9
RB641
AM FRONT-END
19 AM MIX OUT
IF OUT
9
AM/FM 12
AM OSC OUT 24
VCO STOP 13
IF REQ MUTE 8
AM RF IN 20
AM OSC 22
V REG 23
FM DET
5
FM IF 1
AM/FM IF MPX
IC601
11 L OUT
10 R OUT
BUFFER
Q611
LPF601
LPF
18 AM IF IN
IFT601
R-CH
A
MAIN
SECTION
6 TUNED
7 STEREO
3 FM SD ADJ RV611
ST MUTE 22
ST CE 25
ST CLK 28
ST DOUT 26
ST DIN 27
STEREO 23
TUNED 24
SYSTEM CONTROLLER
IC401(1/2)
DO
CL
CE
DI
DI
L-CH
TABLE 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)
OPEN
CLOSE
S711
45 MTR CNT1
MOTOR
DRIVE
9
7
4
2
M
IC701
(TURN)
M721
(Page 23)
FM TUNED
LEVEL
TM601
OPTICAL PICK-UP
BLOCK
(KSS-213D/ZN)
A
B
C
D
E
F
LD
VC
+5V
GND
PD
VR
AUTOMATIC
POWER
CONTROL
FOCUS
COIL
TRACKING
COIL
05
Q101
RF AMP
IC103
VC 12
A 5
B 6
C 7
D 8
E
11
F 10
LD 3
PD 4
IC102
MOTOR/COIL DRIVE
CH1RO
13
CH1FO 14
CH2RO 11
CH2FO
12
CH3RO 18
CH3FO 17
M
M102
(SLED)
CH4RO
16
CH4FO 15
M
M101
(SPINDLE)
F+
F-
T+
T-
3 CH1RI
2 CH1FI
6 CH2RI
5 CH2FI
23 CH3RI
24 CH3FI
25 CH4INS
20 MUTE
MDP
26
SFDR 28
SRDR 29
TRDR
31
TFDR 30
FRDR 33
FFDR
32
DIGITAL SIGNAL PROCESSOR,
D/A CONVERTER
IC101
DIGITAL SERVO,
60 D OUT
RFAC 51
17 RFI
16 RFO
14 FE
13
TE
22 LD ON
21 HOLD SW
RFDC 43
FE 39
TE
41
SE 40
XLON 14
72 L OUT
DIGITAL
OUT
OPTICAL
OPTICAL
IC201
75
R OUT
5 DATA
B
MAIN
SECTION
R-CH
CD L
7 CLOK
6 XLAT
2 SQCK
9 SCLK
20 SCOR
1 SQSO
27 SSTP
66 XTAI
67 XTAO
3 XRST
8 SENS
S101
(LIMIT)
X101
16.9344MHz
CD DATA 35
CD CLK 37
XLT 42
SQ CLK
33
SCOR 19
SQ DATA 32
XRST 43
SENS 40
HOLD 41
BU UP/DOWN SW
(Page 23)
7-2. BLOCK DIAGRAMS
– TUNER/CD SECTION –