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