Block Diagrams Tuner Section - Sony HCD-DX20 Service Manual

HCD-DX20/RG30
6-2. BLOCK DIAGRAMS
TUNER SECTION
DX20
TM101
1
ANT IN
FM 75
AM
RG30
TM101
FM 75 1 ANT IN
AM
OPTICAL PICK-UP
BLOCK
VC
+5V
A
B
C
D
E
F
Q101
LD LD
DRIVE
GND
PD
VR
F+
FOCUS
COIL
F-
T+
TRACKING
COIL
T-
M102
SLED M
MOTOR
M101
M
SPINDLE
MOTOR
FE101 Q101
CF101
RF IF
IF OUT 7
AMP
OSC OUT 8
JR109
VT 5
Q102
+B
X101
4.5MHz
FE101
IF OUT 7
OSC OUT 8
VT 5
14
RB101 13
1 4 11 15 9
5 5
3 6 7
2 12
AM
AM
FREQUENCY
TRACKING
COVERRAGE
DIGITAL SERVO
DIGITAL SIGNAL PROCESSOR
RF AMP D/A CONVERTER
IC103 IC101
12 VC D OUT
5 A RFO 16 51 RFAC
6 B RFI 17 43 RFDC
7 L OUT 1
C
8 D FE 14 39 FE
11 E TE 13 41 TE L OUT 2
10 F 40 SE
3 LD LD ON 22 14 XLON DATA
CLOK
XLAT
HOLD SW 21 SQCK
SCLK
4 PD SCOR
SQSO
IC102
SENS
MOTOR DRIVER
CH1
13 CH1 3 32 FFDR
R IN
OUT R
CH1
14 CH1 2 33 FRDR SSTP
F IN
OUT F
11 CH2 CH2 6 30 TFDR
R IN
OUT R
XTAI
CH2
12 CH2 5 31 TRDR
F IN
OUT F
XTAO
CH3
18 CH3 23 29 SRDR
R IN
OUT R
17 CH3 CH3 24 28 SFDR
F IN
OUT F
XRST
CH4
16 CH4 25 26 MDP
OUT R S IN
15 CH4
OUT F
MUTE 20
AM/FM
FRONT-END, IFAMP, MPX
IC101
CF102
1
FM IF L OUT 11
T101
R OUT 10 R-CH
5 FM DET
A+12V
AM IF IN 18
FM IF
PLL
IC102
AM MIX OUT 19
10 FM/AM IF 12 9 IF OUT FM SD ADJ
3
FM 7 12 AM/IF RV611
DX20
1 XIN AM OSC 14 24 AM OSC
MPX 14
VCO STOP 2 13 VCO STOP
24 IF REQ 8 8
XOUT IF MUTE
15
MPX
FM/AM DET 16
DO
15 FM OSC DO 6
D108
DI DI
18 VT1 IN DI 4
CL
17 VT1 CL 5
CE
19 PD1 CE 3
MPX 14
20
AM RF
22 OSC TU LED 6
7
ST LED
23 V REG
PH671
OPTICAL
CD
60 DIGITAL
DIGITAL OUT
OUT
OPTICAL
L OUT
B
72
MAIN
75 L-CH SECTION
5
7
6
2
9
20
1
8
S101
27
LIMIT
IN SW
66
X101
16.9344MHz
67
3
20 20
AMP
L-CH A
Q103
MAIN
SECTION
IFT101
IFT101
AM IF
FM SD ADJ
RG30
RDS DETECTOR
MASTER CONTROL
IC103
IC401(1/2)
AMP
4 MUX
Q105
DATA 2 21 RDS DATA
14 XO
X102
INT 16 20 RDS INT
4.332MHz
T102 13 XI
FM DET
24 TUNED
23 STEREO (IN)
22
ST MUTE
DO
27 ST DIN
DI
26 ST DOUT
CL
28 ST CLK
CE
25 ST CE
LOAD IN 44
LOAD OUT 45
35 CD DAT OUT
37 CD CLK
42
XLT
33 SQ CLK
T SENS 49
19 SCOR
32 SQ DAT
34 SENS
OPEN SW 46
CLOSE SW 47
48
BU UP/DOWN SW
43
XRST
40 HOLD
• RCH is omitted
• Signal Path
: FM
: AM
: CD
: DIGITAL OUT
IC701
9 4
M721
MOTOR
M
TURN
DRIVE
MOTOR
7 2
M+7V
IC711
TBL ADDRESS
SENSOR
S701
OPEN/CLOSE
S711
UP/DOWN