Sony HCD-GRX9000 / HCD-RX900 / MHC-GRX9000 / MHC-RX900 Service Manual ▷ View online
HCD-GRX9000/RX900
– 21 –
– 22 –
7-1.
BLOCK DIAGRAM – TUNER Section (East European, CIS models only) –
TM1
ANTENNA
FM 75
Ω
COAXIAL
ANT IN
ST +10V
Q5
B+ SWITCH
VT
FM CIRCUIT B+
FE1
FM FRONT-END
IF OUT
+B
CF1
10.7MHz
FM IF AMP
Q1 – 4
CF3
10.7MHz
FM-IN
REG
FM/AM IF AMP,
AM RF AMP/MIX/OSC,
FM/AM DET, MPX
IC41
05
FM/AM PLL
IC21
FM TUNED
LEVEL
RV42
X42
450kHz
D41
D42
D43
FM SD
AM/FM
VCO-STOP
IF-BUFF MUTE
AM-SD
ADJ
AM
SD
AM TUNED
LEVEL
RV41
RV1702
VCO
TP1702,
RV1702
SUB CARRIER
LEVEL
RV1701
SUB CARRIER
PEAK
CT1701, L1701, TP1701
SWITCHING
Q1702
SWITCHING
Q1703
SWITCHING
Q1701
AM IF
IFT41
IFT41
AM
IF
IF
AM
DET
OUT
FM DET
STEREO
TUNED
X41
10.7MHz
MUTE
STEREO
STEREO, TUNED, ST-MUTE,
ST-CE, ST-DOUT, ST-CLK, ST-DIN
TUNED
FM DET-OUT
MPX
IN
IN
OUT L
OUT R
LPF41
L.P.F.
AMP
IN L
IN L
AMP
OUT L
ST-L
ST-CE
ST-DOUT
ST-CLK
ST-DIN
ST-DIN
CE
DI
CL
DO
X21
4.5MHz
AM-MIX
Q9
LW SWITCH
FE2
MW/LW FRONT-END
Q11
MW
MW
SWITCH
Q12
MW
MW
SWITCH
Q14
LW SWITCH
Q13
MW
MW
SWITCH
AM-OSC
AM-RF IN
FM
VT1
MW
MW
AM OSC
FM
VCO STOP
FM/AM IF
IF REQ
XIN
XOUT
POLAR DECODER
IC1701
IN
SUB IN
SUB IN
L OUT
R OUT
MON
TP1702
TP1701
L1701
CT1701
R-CH
VCO
AM
8
4
1
1
6
14
13
15
16
17
29
27
30 14
15 13
4
24
7
6
2
5
3
2
10
17
9
11
14 7
2 12 8
1
24
FM LOW
13
4
3
6
5
26 25 24 23
22
21 20
5
12
23
22
2
20
18
7
6
VCO STOP 9
ST IND 10
21
19
17
20
28
D1704
D1701
D1702
D1703
10
12
9
(Page 27)
A
(Page 27)
B
• SIGNAL PATH
: FM
: AM (MW/LW)
3
13
12
5
3
9 11
4
14
C A
POLAR /PILOT SWITCH
IC1702
17
HCD-GRX9000/RX900
– 23 –
– 24 –
7-2.
BLOCK DIAGRAM – CD Section –
XROF
M
M
A
B
D
F
E
C
I-V AMP
DETECTOR
39
1
2
10
6
5
4
38
16
15
18
17
12
OUT2A
OUT2B
SLO
OUT3B
OUT3A
OUT4A
OUT4B
SPINDLE
MOTOR DRIVE
M101
(SPINDLE)
SLED
MOTOR DRIVE
11
M102
(SLED)
FOCUS
COIL DRIVE
BUFFER
OUT1A
OUT1B
OUT1B
3
6
27
9
26
24
IN3B
IN4A
MUTE
IN2A
IN1B
SLP
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
IC102
16
14
SLED
AMP
LD
PD
LASER DIODE
OPTICAL PICK-UP
(KSS-213D/Q-NP)
2-AXIS
DEVICE
(FOCUS)
(TRACKING)
33
32
27
44
23
22
20
21
19
23
RF AMP,
FOCUS/TRACKING
SERVO
IC101 (1/2)
FOCUS OK
COMPARATOR
MIRR
AMP
DEFECT
AMP
FOCUS OK
AMP
IIL DATA REGISTER
40
38
FILTER
42
39
FILO
PCO
CLTV
FILI
DIGITAL PLL
ASYMMETRY
CORRECTION
CORRECTION
EFM
DEMODULATOR
SERIAL
INPUT
INTERFACE
OVER
SAMPLING
DIGITAL
FILTER
NOISE
SHAPER
PWM &
INTEGRATOR
BUFFER
ERROR
CORRECTOR
16K
RAM
SUB-CODE
PROCESSOR
SERVO AUTO SEQUENCER
DIGITAL CLV
17
15
52
54
50
100
16
LRCKI
BCKI
8 7 9 10 12 11 75 76 77
26
28
14
13
TBL-L
TBL-R
S101
(LIMIT)
M
3
6
7
2
MOTOR
DRIVE
DISC TRAY TURN MOTOR DRIVE
IC701
OUT1
OUT2
IN1
IN2
M701
(DISC TRAY TURN)
41
42
36
37
1
40
45
2
47
13
14
6
25
24
13
+
PD1
PD1 I-V AMP
RFO
RF
46
ASYI
47
ASYO
FOK
DATO
CLKO
XLTO
SEIN
CNIN
CNIN
SQ-DATA-IN
SQ-CLK (D-OUT ON/OFF)
SENS
CD-DATA
CD-CLK
XLT
SCOR
MON
MDP
MDS
29
LOCK
64
SQSO
SQCK
SENS
DATA
CLOK
XLAT
SCOR
SBSO
EXCK
SPOD
GFS
EMPH
WFCK
GTOP
X101
16.9344MHz
RFI
FOK
DATA
CLK
SENS1
26
SENS2
C.OUT
XLT
LOCK
XRST
PD2 I-V AMP
PD2
TTL
IIL
FEO
TEO
PD
FEI
FEO
TAO
TEI
TTL
IIL
TTL
IIL
FOCUS
ERROR
AMP
RF
SUMMING
AMP
TRACKING
ERROR
AMP
TRACKING PHASE
COMPENSATION
FOCUS PHASE
COMPENSATION
AUTOMATIC
POWER CONTROL
Q101
I-V
AMP
LD
AMP
PD
AMP
FE BIAS
F
E
LD
89
XRST
XTAI
90
XTAO
70
C4M
CKO
PCMD
BCK
LRCK
63
C2PO
62
49
RFCK
WDCK
PCMDI
XRST
SLED SERVO
IC101 (2/2)
05
DIGITAL SIGNAL PROCESSOR,
CLV SERVO PROCESSOR,
DIGITAL FILTER, D/A CONVERTER
IC103
SYSTEM CONTROLLER
IC501 (1/3)
ON : When the optical pick-up
is inner position.
• SIGNAL PATH
(Page 27)
: CD PLAY
: DIGITAL OUT
27
CPU INTERFACE
D/A
INTERFACE
CLOCK
GENERATOR
OPTICAL
TRANSCEIVER
IC381
LEVEL SHIFT
Q701
DISC SENSOR
IC703
IC381
CD DIGITAL
OUT
OPTICAL
TIMING
LOGIC
74
58
DOUT
71
53
55
55
51
EMPHI
AOUT1
AOUT2
LOUT1
LOUT2
R-CH
AIN1
AIN2
CD-L
SENS2
73
34
36
74
74
47
48
58
18
DISC TRAY SENSOR
IC702
ROTARY
ENCODER
S811
DISC-SENS
OUT-OPEN
S801
(OPEN/CLOSE DET)
ENC1
ENC2
ENC2
ENC3
57
C
75
TBL-SENS 76
4
80
TRACKING
COIL DRIVE
OP
OUT
OUT
OP+,
OP–
22, 23
6
INTERNAL BUS
DIGITAL
OUT
61
72
73
84
95
85
94
86
93
CLOSE
OPEN
81
79
78
2
3
21
60
61
LOAD-OUT
LOAD-IN
M
10
2
7
4
MOTOR
DRIVE
DISC TRAY SLIDE MOTOR DRIVE
IC801
OUT1
OUT2
FIN
RIN
M801
(DISC TRAY SLIDE)
63
64
HCD-GRX9000/RX900
7-3.
BLOCK DIAGRAM – TAPE DECK Section –
PB EQ AMP
(DECK A)
IC611
PB LEVEL (L)
(DECK A)
REC-L
PB-L
CAPSTAN MOTOR
CONTROL SWITCH
Q1001
CAPSTAN
MOTOR DRIVE
Q336 – 339
1
D
(Page 27)
(Page 28)
L-CH
R-CH
R-CH
HP101
(PLAYBACK)
PB EQ AMP
(DECK B)
IC601
L-CH
R-CH
R-CH
05
R-CH
R-CH
HRPE101 (1/2)
(RECORD/PLAYBACK)
ALC
REC
EQ AMP
AMS
CIRCUIT
DOLBY NR
AMP
CIRCUIT
BIAS
CONTROL
CIRCUIT
DOLBY PASS
R-CH
L.P.F.
BUFFER
Q335
M
M1
(CAPSTAN)
HRPE101 (2/2)
(ERASE)
BIAS OSC
T621
B+
(A+7V)
R-CH
3
46
28
43
36
40
35
34
39
26
31
19 15 16 18 20 22 23 24 25
17
99 94 93 92 90 89 88 87
31
33
32
32
+
48
4
2
RV311
PB LEVEL (L)
(DECK B)
RV301
TAPE SPEED
(NORMAL)
RV1002
TAPE SPEED
(HIGH)
RV1001
REC LEVEL (L)
(DECK B)
RV301
REC BIAS (R)
(DECK B)
RV441
REC BIAS (L)
(DECK B)
BIAS OSC
Q621, 622
REC BIAS
SWITCH
Q623
ROTATION
DETECT SENSOR
(DECK A)
IC1001
RV341
BIAS
TRAP
C331, L331
REC/PB SWITCHING
IC602
SYSTEM CONTROLLER
IC501 (2/3)
DECK PROCESS
DECK A/B SELECT, PB/REC EQ AMP,
DOLBY NR AMP, ALC, AMS
IC301
AIN (L)
BIN (L)
MAOUT
PB OUT (L)
EQ OUT
(L)
MSIN
MSOUT
BIAS ON/OFF
70
120
BIAS (N)
BIAS (C)
BIAS (M)
S1004
A 120/70
B NORM/CROM
ALC ON/OFF
PB A/B
NORM/HIGH
NR ON/OFF
RM ON/OFF
REC/PB/PASS
LM ON/OFF
(DECK A 120/70)
98
S1003
S1001
(DECK A PLAY)
S1002
(DECK B PLAY)
(DECK A HALF)
S1008
(DECK B 120/70)
27
REC OUT (L)
ROUT (L)
RIN (L)
ALC (L)
EQ IN (L)
ALC
IN (L)
44
38
97
AMS-IN
26
A-SHUT
ROTATION
DETECT SENSOR
(DECK B)
IC1002
27
B-SHUT
TRIGGER
PLUNGER DRIVE
(DECK A)
Q333, 334
84
A-TRG
TC-MUTE
R/P-PASS
NR-ON/OFF
REC-MUTE
BIAS
EQ-H/N
PB-A/B
ALC-ON/OFF
TC-RELAY
A-PLAY-SW
B-PLAY-SW
A-HALF
28
S1006
(DECK B HALF)
S1009
(DECK B REC)
S1005
(DECK A REC)
B-HALF
SL1
TRIGGER PLUNGER
DECK A
TRIGGER
PLUNGER DRIVE
(DECK B)
Q331, 332
83
B-TRG
82
17
CAP-M-H/L
CAPM-CNT1P
CAPSTAN
MOTOR DRIVE
Q340 – 343
85
86
CAPM-CNT1M
CAPM-CNT2M
SL2
TRIGGER PLUNGER
DECK B
95
96
E
• SIGNAL PATH
: PLAYBACK (DECK A)
: PLAYBACK (DECK B)
: RECORD
– 25 –
– 26 –
HCD-GRX9000/RX900
7-4.
BLOCK DIAGRAM – MAIN Section (1/2) –
MIC LEVEL
DBFB CONTROL
SWITCH
Q111
SPEANA
MIXING AMP
IC102
RESET SIGNAL
GENERATOR
IC502
CD-L
C
(Page 24)
(Page 26)
E
(Page 26)
F
(Page 29)
G
(Page 29)
PB-L
D
ST-L
A
(Page 22)
B
(Page 22)
R-CH
R-CH
05
FM/AM TUNER UNIT
VOLUME
CONTROL
CPU
INTERFACE
BASS BOOST
CONTROL
CIRCUIT
INPUT
SELECT
SOUND
CONTROL
CIRCUIT
GRAPHIC
EQUALIZER
CONTROL
CIRCUIT
67
R-CH
FEED BACK SWITCH
Q112
R-CH
R-CH
COMMAND
F OUT2
BUF
OUT2
VOL
IN2
IN2
+
R-CH
R-CH
+
+
+
68
2
58
RV750
MIC AMP
IC750 (2/2)
MUTING
Q113
LINE AMP
IC191
RESET
SWITCH
Q501
GRAPHIC EQUALIZER CONTROL,
ELECTRICAL VOLUME
IC101
IN B2
IN C2
IN C2
66
60 5
69
IN A2
IN D2
IN D2
KEY IN2
KEY IN1
75
33 32 34
KEY OUT
DATA
CLOCK
LATCH
52 51 3
M62442-DATA
M62442-CLK
M62442-LATCH
10
X2
X501
5MHz
X502
32.768kHz
11
X1
13
XT2
14
XT1
BB B2,
BB A2
MIC IN
VOL OUT2
REC
A2
REC-L
N
(Page 31)
J
(Page 31)
(Page 31)
(Page 32)
(Page 32)
SPEANA
DATA, CLK
POWER
CD-POWER
REC
B2
• SIGNAL PATH
: CD PLAY
: TAPE PLAY
: RECORD
: TUNER (FM/AM)
: MIC IN
+5V
MUTING
Q191
R-CH
R-CH
57
42
MUTING CONTROL
SWITCH
Q571, 572
41
100
2
16
15
6
36
40
J101 (2/2)
MD/VIDEO
(AUDIO) OUT
J191
SUPER WOOFER
R
L
J101 (1/2)
J751
R
MIX MIC
MD/VIDEO (AUDIO) IN
L
ST-L
FM ANT
FM ANT
AM ANT
AM ANT
ST-R
ST-MUTE
STEREO
TUNED
ST-DIN
ST-DOUT
ST-CLK
ST-CE
ANTENNA
FM 75
Ω
AM
38, 39
DBFB-H/L
CD-POWER
POWER
IIC-CLK
IIC-DATA
CLK
DATA
68
ST-CE
65
ST-CLK
66
ST-DIN
67
ST-DOUT
69
TUNED
70
STEREO
72
ST-MUTE
ST-CE
ST-CLK
ST-DIN
ST-DOUT
TUNED
STEREO
ST-MUTE
(HCD-RX900)
(HCD-RX900)
STK-MUTE
LINE-MUTE
F-RELAY
AC-CUT
RESET
1
RESET
H
(Page 29)
STK-MUTE
FEED-BACK
L-CH
I
(Page 30)
RELAY
SYSTEM CONTROLLER
IC501 (3/3)
56
55
K
L
M
46
5
(HCD-GRX9000)
MIC AMP
IC750 (1/2)
– 27 –
– 28 –
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