Sony HCD-VX5AJ / MHC-VX5 / MHC-VX5J / MHC-VX7 Service Manual ▷ View online
HCD-VX5A/VX5AJ/VX7A
– 23 –
– 24 –
7-2.
BLOCK DIAGRAM – AUDIO/VIDEO CD Section –
PROGRAM ROM
IC506
05
• SIGNAL PATH
: CD PLAY (AUDIO)
: CD PLAY (VIDEO)
D/A
CONVERTER
INPUT
INTERFACE
CIRCUIT
OSC
BUFFER
IC504
LOW-PASS
FILER
IC101
IC101
B.P.F.
B.P.F.
VIDEO
BUFFER
Q301
VIDEO
BUFFER
Q303
VIDEO
BUFFER
Q307
VIDEO
BUFFER
Q308
VIDEO
BUFFER
Q304
VIDEO AMP
IC401 (1/2)
VIDEO AMP
IC401 (2/2)
SHARPNESS
CONTROL SWITCH
Q306
SHARPNESS
FILTER
Q302
VIDEO
MUTE
Q454
VIDEO
MUTE
Q453
Y/C MIX
Q310
BUFFER
Q502
LOW-PASS
FILER
MODE
CONTROL
TIMING CONTROL/
CLOCK GENERATOR
VIDEO FREQUENCY
(27MHz)
DIGITAL FILTER,
D/A CONVERTER
IC509
MPEG VIDEO/AUDIO DECODER,
VIDEO SIGNAL PROCESSOR
IC505
CD MECHANISM CONTROLLER
IC502 (2/2)
14
11
VOUTL
VOUTR
R-CH
10
RSTB
17
18
19
20
21
9
7
24
1
DATA
BCK
LRCK
CD-ROM
INTERFACE
CIRCUIT
MPEG
SYSTEM
DECODER
MPEG
VIDEO
DECODER
VIDEO
PROCESS
CIRCUIT
CPU INTERFACE
AUDIO
INTERFACE
CIRCUIT
MPEG
AUDIO
DECODER
D-RAM/ROM INTERFACE
3
4
5
CD-DATA
C2PO
DATA
BCK
LRCK
DATA, BCK,
LRCK, C2PO
LRCK, C2PO
CD-BCK
CD-LRCK
6
CD-C2PO
MA0 – MA10
MD0 – MD15
D0 – D15
D0 – D15
A0 – A10
A0 – A8
384FSO
768FSO
4
MCKO
X503
27MHz
CT503
MD
XT2
XT1
37
14 13
29
28
38 42 40
22
32
21
20
33
31
23
24
60
69
75
113
110
111
108
106
HRDY
Y-OUT
86
DA-XCLK
VCK-IN
DA-DATA
DA-BCK
DA-LRCK
C-OUT
93
114 121
HSEL
112
HD-OUT
119
HD-IN
117
HCK
ML
8
MC
LEVEL
SHIFT
IC501
IC501
B
(Page 22)
DATA, CLK
D
(Page 29 )
MCLK 33.8MHz
A
(Page 22)
CD-L
E
(Page 27)
C
(Page 22)
C
Y
DIGITAL
FILTER,
NOISE
SHAPER
CIRCUIT
CIRCUIT
58 – 56, 54, 52 – 50, 48, 46 – 44
10 – 15, 17, 19, 21, 23 – 29
16 – 19, 22 – 26
A0 – A10
12 – 5, 27, 26, 23
D8 – D14
A11 – A17
25, 4, 28, 29, 3, 2, 30
D0 – D7
O0 – O7
A0 – A10
DQ1 – DQ16
ADDRESS BUS
DATA BUS
D-RAM
IC507
A0 – A8
13 – 15, 17 – 21
2 – 5, 7 – 10, 31 – 34, 36 – 39
WE
22
CE
RAS
LCAS
UCAS
CAS
RESET
HINT
CL680 RESET
CL680 HINT
CL680 HRDY
CL680 HRDY
CL680 SEL
DATA1I
93
NT/PAL
TEST LED
CLK1
DATA1O
DATA1O
45
BUS
DATA
CLK
DF LATCH
34
7
5
SHARPNESS
65
VMUTE
29
30
DATA
CLK
DATA
CLK
RAS0
MWE
MCE
RESET
1
3
1
2
3
4
J301
S VIDEO OUT
J302
VIDEO OUT
XOUT
XIN
X501
10MHz
NTSC
AUTO
PAL
S501
SYSTEM SELECT
D502
(SELF DIAGNOSIS)
73
13
15
PGIO2/VSYNC/CSYNC
HCD-VX5A/VX5AJ/VX7A
– 25 –
– 26 –
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 – 343
1
F
(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
77
19 15 16 18 20 22 23 24 25
17
85 84 83 82 81 80 79 78
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 (2/4)
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)
88
S1003
(DECK A HALF)
S1001
(DECK A PLAY)
S1002
(DECK B PLAY)
S1008
(DECK B 120/70)
27
REC OUT (L)
ROUT (L)
RIN (L)
ALC (L)
EQ IN (L)
ALC
IN (L)
44
38
100
AMS-IN
91
A-SHUT
ROTATION
DETECT SENSOR
(DECK B)
IC1002
90
B-SHUT
TRIGGER
PLUNGER DRIVE
(DECK A)
Q333, 334
73
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
89
S1006
(DECK B HALF)
S1009
(DECK B REC)
S1005
(DECK A REC)
B-HALF
TRIGGER PLUNGER
DECK A
TRIGGER
PLUNGER DRIVE
(DECK B)
Q331, 332
72
B-TRG
76
74
75
CAP-M-H/L
CAPM-CNT2
CAPM-CNT1
TRIGGER PLUNGER
DECK B
87
86
G
• SIGNAL PATH
: PLAYBACK (DECK A)
: PLAYBACK (DECK B)
: RECORD
D+5V
HCD-VX5A/VX5AJ/VX7A
– 27 –
– 28 –
7-4.
BLOCK DIAGRAM – MAIN Section –
DBFB CONTROL
SWITCH
Q111
BASS FREQUENCY
CONTROL SWITCH
Q201
RESET SIGNAL
GENERATOR
IC502
POWER AMP
IC801
CD-L
J101 (1/2)
E
(Page 24)
(Page 26)
G
(Page 26)
(Page 29)
PB-L
F
SPEANA
H
R-CH
R-CH
R-CH
05
FM/AM TUNER UNIT
VOLUME
CONTROL
CPU
INTERFACE
BASS BOOST
CONTROL
CIRCUIT
INPUT
SELECT
SWITCH
SOUND
CONTROL
CIRCUIT
L+R/L–R
MATRIX
CIRCUIT
ADM
L.P.F.
OSC
OSC
S-RAM
L/R+DELAY
CIRCUIT
EFFECT/
BYPASS
GRAPHIC EQUALIZER
CONTROL CIRCUIT
R-CH
R-CH
R-CH
R-CH
L-IN
FEED BACK
SWITCH
Q112
R-CH
COMMAND
F OUT2
BUF
OUT2
VOL
IN2
IN2
+
+
R-CH
R-CH
R-CH
R-CH
D141
R-CH
+
+
MIC LEVEL
RV712
ECHO
LEVEL
RV711
MIC AMP
IC712 (2/2)
MUTING
Q113
OVER LOAD
DETECT
Q801
TEMPERATURE
DETECT SWITCH
Q831, 832
DC DETECT
SWITCH
Q433, 434
RESET SWITCH
Q501
RELAY
DRIVE
Q431
INPUT SELECT SWITCH,
GRAPHIC EQUALIZER CONTROL,
ELECTRICAL VOLUME
IC101
SURROUND
PROCESSOR
IC1201
IN E2
IN D2
IN B2
IN A2
IN C2
IN A2
IN C2
KEY IN2
VC L+R/L–R
KEY IN1
KEY OUT 2
KEY OUT 1
L+R
DATA
CLOCK
LATCH
493-DATA
493-CLK
493-LATCH
DBFB-H/L
BASS FREQ.
PROTECTOR
XC-OUT
X613
16MHz
X601
32.768kHz
XC-IN
X-OUT
X-IN
BB B2,
BB A2
MIC IN
SUPER
WOOFER
REC A2
REC-L
D191
REC B2
• SIGNAL PATH
: CD PLAY
: TAPE PLAY
: RECORD
: TUNER (FM/AM)
: MIC INPUT
TH831
+5V
R-CH
+
R-CH
R-CH
M501
(FAN)
(FAN)
R-CH
–1
–2
+
MUTING
Q191
MUTING
Q411, 471
FAN MOTOR
DRIVE
Q401, 402
PROTECT
SWITCH
Q192
R-CH
R-CH
OVER LOAD
DETECT SWITCH
Q432
PROTECT SWITCH
Q439
PROTECT SWITCH
Q435, 436
OVER LOAD
DETECT SWITCH
Q437
STANDBY SWITCH
Q803, 804, 881
MUTING CONTROL
SWITCH
Q508, 509
MUTING CONTROL
SWITCH
Q412
J701
PHONES
TM401
SPEAKER
IMPEDANCE
USE 8 – 16
Ω
TM402
SURROUND SPEAKER
IMPEDANCE USE 16
IMPEDANCE USE 16
Ω
J711
MIC 2
J712
MIC 1
L
L
R
R
VIDEO
(AUDIO) IN
MD IN
J101 (2/2)
L
R
MD OUT
J191
SUPER WOOFER
ANTENNA
ST-L
FM ANT
FM ANT
AM ANT
AM ANT
ST-R
ST-MUTE
STEREO
TUNED
ST-DIN
ST-DOUT
ST-CLK
ST-CE
ST-MUTE
STEREO
TUNED
STEREO
TUNED
ST-DOUT
ST-DIN
ST-CLK
ST-CLK
ST-CE
FM
75
Ω
AM
38, 39
D607
D644
D803
RY401
+
–
–
+
L
R
+
–
–
+
SYSTEM CONTROLLER
IC501 (3/4)
+
MIC AMP
IC712 (1/2)
DIGITAL ECHO
IC711
(Page 29)
RESET
I
27
F-RELAY
3
11
10
13
15
7
44
STK-MUTE
1
LINE-MUTE
RESET
6
12
AC-CUT 22
RY-SW 36
47
48
38
60 5
59
6
2
58
57
42
41
72
36
34
BUF IN2
37
32
33
49
50
51
54
53
52
55
65
66
68
69
67
M
L
R
30
+
11
L+R/L–R
LC-INE
LC-INB
3
40
23 24
L-OUT
14
HCD-VX5A/VX5AJ/VX7A
7-5.
BLOCK DIAGRAM – DISPLAY/KEY CONTROL/POWER SUPPLY Section –
– 29 –
– 30 –
REGULATOR
CONTROL SWITCH
Q903, 923
D925
D501, 502
+7V
REGULATOR
IC901
–26V
(FL DRIVER (IC601) B–)
+12V
REGULATOR
IC903
+10V
REGULATOR
Q909
D918
–7V
REGULATOR
Q914, 951, 952
+7V
REGULATOR
Q901, 902, 913
ST +10V
(FM/AM TUNER UNIT B+)
TC M+12V
(TC MOTOR SECTION B+)
CD M+7V
(CD MOTOR SECTION B+)
B+ SWITCH
Q907, 908
B+ SWITCH
Q911, 912
D507
B+ SWITCH
Q904, 905
+5V
REGULATOR
IC902
+5V
REGULATOR
IC904
+3.3V
REGULATOR
Q531
RECT
D907 – 910
RECT
D901 – 904
POWER AMP (IC801),
PROTECTOR CIRCUIT
PROTECTOR CIRCUIT
POWER TRANSFORMER
T951
RECT
D832
D832
RECT
D831
D831
VOLTAGE
SELECTOR
S951
RECT
D971
D971
–26V REGULATOR
Q971
AC IN
A+7V
TC, PANEL,
AUDIO
A–7V
FAN MOTOR B–
VF1
TO FLUORESCENT
INDICATOR TUBE
(FL601)
VF2
+VL
–VL
+VH
–VH
REMOTE CONTROL
RECEIVER
IC602
GRID DRIVE
Q607 – 612
FLUORESCENT INDICATOR TUBE DRIVER,
KEY CONTROL
IC601
SYSTEM CONTROLLER
IC501 (4/4)
LED DRIVER
IC604
BAND-PASS FILTER
IC603
Q603
+5V (LED)
S LOW FREQ (BPF0)
18
BPF2
19
BPF3
20
BPF4
GRID DRIVE
Q613
DET
DET
B.P.F.
21
ALL BAND (L+R)
REC IN
LINE
IN
1
SIRCS
ROTARY
ENCODER
S601
ROTARY
ENCODER
S602
2
JOG-A
9
VOL-A
8
JOG-B
10
72
70
VOL-B
XOUT
XIN
B+ SWITCH
Q601, 602
LED DRIVE
Q606
KEY0 – KEY3
BPF1
F01
F04
F05
F06
F05
F06
F02
G1
(Page 27)
(Page 28)
H
(Page 23)
D
D611 – 624,
D627 – 631,
D627 – 631,
D751 – 753
SPEANA
L SEL
7
TIMER LED 26
LED DATA
5
LED SCK
3
LED LAT
DATA
CLK
4
13
14
15
45
I2C DATA
DATA, CLK
I2C CLK
IIC-DATA
IIC-CLK
RESET
RESET
17
79
78
29
WAKE UP
WAKE UP
22
18
30
CD-POWER
5
POWER
2
73
16
14
13
12
L+R
11
16
17
4
6
11 – 14
S1 – S22
46 – 67
G13 – G18
32 – 27
G2 – G12
44 – 42, 40 – 33
17, 19 – 23, 1 – 3, 5, 7, 10, 11
P1 – P9, P11, P12, P15, P16
S601
(JOG DIAL)
S611 – 630, 632 – 635,
S638 – 651, 751 – 757
05
S602
VOLUME
X601
12.5MHz
I
STB
LED DRIVE
Q604, 605
STBY LED 39
D632
TIMER SELECT
D754
I/u
(Thai)
(EXCEPT Thai)
A+5V (SW)
D/A CONVERTER (IC509),
VIDEO AMP CIRCUIT B+
+3.3V
MPEG VIDEO/AUDIO
DECODER (IC505) B+
D+5V (SW)
CD SERVO/VIDEO CD
SECTION B+
D+5V (SW)
M62493FP (IC101),
CD SENSOR CIRCUIT B+
+5V
SYSTEM CONTROLLER
(IC501) B+
+5V
CD MECHANISM
CONTROLLER (IC502) B+
D923
D405 – 407
D+5V (UNSW)
(TAPE DECK SECTION B+)
+5V (STBY)
(PANEL SECTION B+)
+5V (LED)
(PANEL SECTION B+)
D509
D922
D924
FLUORESCENT INDICATOR TUBE
FL601
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