Sony HCD-GR3 / HCD-RX30 / MHC-GR3 / MHC-RX30 Service Manual ▷ View online
— 17 —
— 18 —
6-2. BLOCK DIAGRAMS
— TUNER SECTION — (RX30: AEP, UK, G, EE MODEL)
HCD-GR3/RX30
TM1
AM
ANTENNA
FM 75
Ω
COAXIAL
ANT IN
ST +10V
Q5
F OUT
VT
FE1
FM FRONT END
IF OUT
CF1
10.7MHz
IF AMP
Q1, 2
CF2
10.7MHz
IF AMP
Q3, 4
CF3
10.7MHz
1 FM IN
REG
FM/AM MPX
IC41
19
15
10
09
PLL
IC21
11
FM
TUNED
LEVEL
15 11
30
14
RV42
2 12
14
7
8
13
X42
450kHz
FM SD
AM/FM
VCO STOP
IF BUFF
MUTE
AM
SD
AM
TUNED
LEVEL
12
RV41
2
AM IF
IFT1
5
9
23
AM IF
DET
VCO
ST LED
TU LED
8
7
X43
456kHz
X41
10.7MHz
MUTE
STEREO
TUNED
24
22
AM/FM
MPX IN
20
21
OUT L
OUT R
LPF
RCH
18 AMP IN L
L 16
ST L
4
5
5
3
ST-CE
COM-DIN
COM-CLK
COM-DATA
A
MAIN
SECTION
CE
DI
CL
DO
1 24
X21
4.5MHz
AM MIX
AM
SD
6
4
5
3
2
G
MODEL
15
17
16
14
12
13
29
26 25 24 23
22
21 20
9
G MODEL
LW SW
Q9
27
FE2
MW/LW FRONTEND
AEP, UK, EE MODEL
Q11
MW
SW
MW
SW
Q12
MW
SW
MW
SW
Q14
LW SW
Q13
MW
SW
MW
SW
AM OSC
AM RF IN
• R CH: Same as L ch
• SIGNAL PATH
• SIGNAL PATH
: FM
: MW
: LW
• Abbreviation
G: German model.
G: German model.
EE : East European model.
RDS SIG
(Page 23)
AEP, UK, EE MODEL
6
FM
FM OSC
PD1
MW
MW
AM OSC
FM
VCO STOP
FM/AM IF
IF REQ
X IN
X OUT
— 19 —
— 20 —
HCD-GR3/RX30
— DECK SECTION —
IC301
R CH
HP901
PB HEAD
(DECK A)
(DECK A)
L
R
RV301
PLAYBACK
LEVEL
DECK A
IC302
R CH
L
R
RV302
PLAYBACK
LEVEL
DECK B
3
1
4
REC/PB
EQ OUT
REC BIAS
BIAS OSC
T350,Q351, 352
HE901
ERASE HEAD
ERASE BIAS
3
2
BIN
A IN
4
14
A/B
ABO
EQ IN
11
13
RV303
REC LEVEL
10
REC OUT
BIAS SW
B OUT
C IN
5
70
120
DOLBY
TYPE B
TYPE B
20
NR ON/OFF
A +7.5V
Q353, 354
REC IN
6
PB
21
18
19
8
24
PB OUT
Q450
BIAS ON/OFF
RM ON/OFF
Q301
MUTE
PB L
REC L
PAS/DOL
REC/PB
BIAS ON/OFF
RM ON/OFF
RELAY REC/PB
M
M901
REEL/
CAPSTAN
H
L
+MTR
S1
(MOTOR)
S2
(PLAY)
S4
(MOTOR)
S5
(PLAY)
S7
(REC)
09
DECK A
DECK B
RV380
TAPE SPEED
Q380
A STOP/PLAY
B STOP/PLAY
B REC
B
MAIN
SECTION
(Page 23)
PAS/DOL
LM ON/OFF
POWER ON/OFF
PAS
DOL
120/70
P
R
HRP901
REC/PB HEAD
(DECK B)
X
HEAD AMP
DOLBY NR
IC303
IC304
RECORD
BIAS
RV304
– MTR
– MTR
POWER ON/OFF
SWITCH
Q381, 382
27
28
29
A 7.5V
—
CROM
NORM
15 17
DECK A
S3
TYPE2
DECK B
S6
TYPE 2
DOLBY ON/OFF
A/B
D452, 453
Q451
• SIGNAL PATH
:PB (DECK A)
:PB (DECK B)
:REC (DECK B)
:PB (DECK A)
:PB (DECK B)
:REC (DECK B)
–
+
— 21 —
— 22 —
HCD-GR3/RX30
— CD SECTION —
• R CH: Same as L ch
• SIGNAL PATH
: CD
• SIGNAL PATH
: CD
M
OPTICAL PICK-UP BLOCK
DETECTOR
K
B+
A
D
C
B
E
F
A
D
C
B
1
4
2
5
5
10
6
35
36
38
39
RV102
FOCUS
GAIN
2
1
42
44
RV103
TRACKING
GAIN
LD DRIVE
Q101, 102
33
34
LD
PHD
XRST
FGD
FOK
25
25
4
FOCUS/TRACKING SERVO.
EFM COMPARATOR
IC101 (1/2)
6
7
7
12
13
13
19
21
20
37
24
23
31
RV101
B+
FOCUS
BIAS
14
FOCUS SW
Q103
55
54
RF1
PD2
F
E
FEI
FEO
TEO
TEI
CLK
XLT
DATA
TAO
TA-M
FE-M
FE-O
FE BIAS
SENS
C.OUT
RFO
3 1
56 57 59
64
51 52 53
43 46 47 49
50
39
34
21
20
20
22
2
3
1
4
13
16
26 28 27
5 • 6
X101
16.9344MHz
CKO
XTI
•
XTO
L OUT
R OUT
DATA
LRCK
BCLK
DATA
MLAT
CLOK
XTAI
DOUT
PCMD
LRCK
BCLK
XRST
SCOR
SQSO
SQCK
SENS
DATA
XLAT
CLOK
DIGITAL SIGNAL PROCESSOR,
CLV SERVO
IC103
RF
CNIN
SEIN
SEIN
DATAO
XLTO
CLKO
MDP
XLON
FOK
7
LASER
DIODE
TRACKING
COIL DRIVE
19
18
17
FOCUS/TRACKING
COIL DRIVE
IC102 (1/2)
FOCUS
COIL DRIVE
9
12
11
2-AXIS
DEVICE
TRACKING
COIL
FOCUS
COIL
T+
F+
T–
F–
SLED
SERVO
IC101 (2/2)
SLED/SPINDLE
MOTOR DRIVE
IC102 (2/2)
14
16
25
SLED MOTOR
DRIVE
26
•
27
M
M102
SLED MOTOR
SPINDLE MOTOR
DRIVE
4
1
•
2
M
M101
SPINDLE
MOTOR
SLO
SL+
CD CLK
CD DATA
DF LAT
SCOR
SQ DATA
SQ CLK
SENS
FOCUS SW
XRST
X LAT
TABLE
SENSOR
IC702
T. SENS
OPEN
S801
OPEN/CLOSE
DET
OUT1
IN1
IN2
OUT2
M
M701
TURN
TURN
MOTOR
TBL.L
TBL.R
09
DIGITAL FILTER
D/A CONVERTER
IC104
L-CH
R-CH
C
MAIN
SECTION
X RESET
TURN
MOTOR DRIVER
IC701
7
DISC
SENSOR
IC703
ROTARY
ENCODER
S811
Q701
DISC SENS
ENC 1
ENC 2
ENC 3
2
4
7
2
10
M801
SLIDE
MOTOR
OUT2
OUT1
RIN
FIN
SLIDE
MOTOR DRIVER
IC801
LOAD IN
LOAD OUT
3
6
(Page 23)
— 23 —
— 24 —
HCD-GR3/RX30
— MAIN SECTION —
55
80
82
83
84
85
86
87
11
12
13
1
2
3
4
5
9
10
6
J801
MICON
INTERFACE
+
+
BB22
BB12
EQ
EQUALIZER / VOLUME
IC901
DBFB
SWITCH
Q901
FEED
BACK
Q902
1
10
MUTE
Q954
MUTE
SWITCH
Q820
MUTE
Q1206
OVER LOAD
DET
Q1201
Rch
Q1204
Rch
Rch
1
2
6
4
7
PROTECTOR
IC1202
RELAY
DRIVE
Q1202,1203
+B
SUPER
WOOFER
TM1201
PHONES
SPEAKER
J501
HP / SP
SWITCHING
Q1207
PROTECTOR
SWITCH
Q1205
D705
RESET
SWITCH
Q701
RESET
IC702
+5.6V
2
3
X701
10MHz
X501
5MHz
4
8
5
6
09
53 - 70 • 72 - 75
1 - 7 • 76-80
FL501
FLUORESCENT INDICATOR TUBE
VF
34
35
X1
X2
25
28
VOL IN A
VOL IN B
44
12
9
•
10
•
36
•
37
•
40
43
LED10
LED7
•
LED4
LED1
LED SELECT
19
SIRCS IN
47
GRAPHIC CONTROL
IC501
REM GM
CLK MG
DATA GM
DATA MG
RDY MG
13
14
15
16
46
17
RESET
LED
SWITCH
Q501-504
507-510
D548-556,
578,
580-583
D605,615,625
REMOTE
CONTROL
RECEIVER
IC502
LED
CONTROL
Q520,530
ROTARY
ENCODER
VOLUME
S550
KEY
MATRIX
Q521
LED SWITCH
+5V
68
CD POWER
D1017
D706
+5.6V
+5V
D +5V
D +5V
(CD)
+5V REG
Q1001,1002
VF
+B
–B
D1003
RECT
VOLTAGE
SELECTOR
S1601
AC
IN
T1001
POWER
TRANSFORMER
RECT
D1024 - 1027
D1001
RECT
RECT
D1013, 1014
–25V
–25V REG
Q1006
ST +10V
+10V REG
Q1011
–7.5V
–7V REG
IC1004
+5V REG
IC1001
+7.5V
CD +7V
+7V REG
IC1003
+7V REG
IC1002
PB L
REC L
RELAY REC/PB
A / B
BIAS ON/OFF
RM ON/OFF
DOLBY ON/OFF
REC/PB
PASS/DOL
LM ON/OFF
A STOP / PLAY
B STOP / REC
B STOP / PLAY
ST L
COM DIN
COM CLK
COM DATA
STEREO
TUNED
ST CE
MUTE
L CH
DISC SENS
TBL. L
TBL. R
SCOR
T. SENS
DF LAT
SENS
X RST
CD CLK
CD DATA
FOCUS SW
SQ CLK
SQ DATA
X LAT
B
DECK
SECTION
A
TUNER
SECTION
C
CD
SECTION
VIDEO
IN
L
FUNCTION SWITCH
IC802
V
TC
ST
CD
73
71
72
93
94
95
10
COM DATA
COM CLK
COM DIN
STEREO
TUNED
ST CE
ST MUTE ON
TC RELAY
TC A
BIAS OFF
REC MUTE
NR OFF
PB
PASS AMP/DOLBY
LINE MUTE ON
180 A PLAY
180 B PLAY
180 B REC
180 B REC
62
62427 LAT
54
23
24
25
26
29
30
31
38
40
43
44
45
46
DISC SENS
TBL L
TBL R
SCOR
SCOR
TBL SENS
DF LAT
SENS
XRST
CD CLK
CD DATA
FOCUS SW
SQ CLK
SQ DATA
X LAT
OUT-SW-OPEN
OUT-SW-OPEN
ENCODER-0
ENCODER-1
ENCODER-2
LOAD IN
LOAD OUT
OPEN
ENC-1
ENC-2
ENC-3
LOAD IN
LOAD OUT
67
77
70
POWER ON
DBFB HIGH
MUTE
34
35
36
37
32
GM REQ
MG CLK
GM DATA
MG DATA
MG DATA
MG RDY
RESET
AC CUT
XOUT
XIN
XOUT
XIN
X702
32KHz
62
69
71
29
28
30
32 33 34
CK
DA
65
64
45
44
43
42
38
POWER AMP
IC1201
Rch
RY1201
Q522
LED SWITCH
B
A
INH
POWER ON/OFF
MASTER CONTROL
IC701
51
49
LED11
LED13
LED
SWITCH
Q601-603
• Rch : Same as Lch
• Signal path
: FM
: CD
: PB
: REC
• Abbreviation
CND : Canadian model.
AR : Argentine model.
6
40 41
LATCH
REC 2A
+
–
GR3 : E, AR
(Page 20)
(Page 18)
(Page 22)
20
17
18
19
21
22
J802
GR3/RX30 : US, CND
KEY IN4
KEY IN1
SEG1 — SEG 22
GR1 — GR12
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