Sony HCD-VX555 / HCD-VX555J / MHC-VX555 / MHC-VX555J Service Manual ▷ View online
25
25
HCD-VX555/VX555J
MAIN SECTION
A
TUNER
SECTION
(Page 24)
E
G
VIDEO
SECTION
(Page 26)
F
D
CD
SECTION
(Page 24)
VIDEO
SECTION
(Page 26)
VIDEO
SECTION
(Page 26)
: FM
: CD
• Signal Path
• RCH is omitted due to
same as L-CH.
same as L-CH.
: PB (DECK A)
: PB (DECK B)
: REC (DECK B)
: VIDEO
REC
BIAS
BIAS
TRAP
TRAP
R-CH
R-CH
R CH
BIAS
OSC
Q302,303
RV304
Q301
TA+12V
C332,L301
ERASE
HEAD
REC/PB
HEAD
PB EQ
AMP
IC304
RV303
IC302
REC/PB SWITCH
REC
EQ
BIAS
SW
DOLBY
B
NORM
CROM
RV301
40
1
2
3
4
48
46
A
B
70
120
PB
REC
DOL
PAS
PB
REC
36
33
32
38
39
43
BIAS ON/OFF
20
B NORM/CROM/METAL
ALC ON/OFF
15
RM ON/OFF
22
NR ON/OFF
23
REC /PB/PASS
24
LM ON/OFF
25
MS OUT
26
MD/VIDEO
(AUDIO)
R-CH
R-CH
L-CH
LOUT
L-CH
J101
L
R
L
R
R-CH
PB
HEAD
DECK-B
DECK-A
PB EQ
AMP
IC303
RV302
SWITCH
Q304,305
17
A120/70
PB A/B
16
NORM/HIGH
18
DECK PROCESSOR
INPUT SELECT
G EQ
IC101
IN2A
40
IN2C
38
VSELA IN2
34
IN2D
37
INVOL OUT2
35
IN2B
39
24
VOL OUT2
DATA
21
CLOCK
22
R-CH
DBFB
SWITCH
Q503
DBFB
CONT
Q101,102
6
5
7
IC102
MUTING
Q103
MUTING
CONT
Q504,505
POWER
AMP
IC501
18
12
10
IC103
ANALOG SURROUND
L-IN
L-OUT
7
CONT3
3
CONT2
2
BP/SR
1
10
MUTING
Q581
Q401
BUFFER
MUTING
CONT
Q503,504
MUTING
Q862
MUTING
CONT
Q861
D841
OVER LOAD
DETECTOR
Q551
OVER HEAT
DETECTOR
Q505,506
+B
PROTECT
DETECTOR
Q821,822
PROTECT
CONT
Q823
D502
PROTECT
SWITCH
Q828,829
RELAY
DRIVE
DRIVE
Q824,825
RY801
J631
PHONES
R CH
R CH
M961
(FAN)
(FAN)
FAN
DRIVE
Q891,892
L
R
TM801
SPEAKER
91 B SHUT
89 A SHUT
57 B PLAY
56 A PLAY
91 B HALF
70 A HALF
67
PB A/B
A TRIG
DRIVE
DRIVE
CAP MOTOR
DRIVE
Q396,397
Q393,394
B TRIG
DRIVE
DRIVE
Q391,392
CAP MOTOR
SPEED CONT
Q395
A TRIG
51
B TRIG
52
CAP M H/L
54
CAP M CONT
55
B TRG M+
19
69
TC RELAY
IC501(2/2)
MASTER CONTROL
66
EQ H/N
68
ALC
65
BIAS
61
REC MUTING
60
NR ON/OFF
59
R/PB PAS
58
TC MUTING
53
AMS IN
5
SUR1
SUR2
SUR3
SUR1
SUR2
SUR3
SUR1
SUR2
SUR3
6
7
80
GEQ DATA
81
GEQCLK
79
DBFB ON/OFF
DC
BIAS
Q141
+6V
A+12V
82
LINE MUTING
83
STK MUTING
87
FRONT RELAY
88
PROTECT
30
IIC DATA
10
XC IN
11
XC OUT
15
X IN
13
X OUT
32.768kHz
X501
16MHz
X502
BPF 0
BPF 5
P1
P39
FLOURESCENT
INDICATOR TUBE
DISPLAY CONTROL
IC601
F1
F2
D608-609
D613-618
D613-618
11
FUCTION
KEY
60 I2C DATA
61 I2CCLOCK
VOL A
80
VOL B
79
S751 VOLUME
X601
4MHz
FL601
IC602
ALL BAND
73
HEADPHONE
78
VIDEO SWITCH
VIDEO SWITCH
VIDEO SWITCH
(IC601)
76
S768-781
55
TUNER
57
CD
54
TAPE A/B
56
MD/VIDEO
58
GAME IN
LED
DRIVER
Q601-605
LED
DRIVER
Q751
52
REC/PAUSE
REC
D751
LED
DRIVER
53
ENTER
ENTER
D752
Q752
17
12
SPEANA
BPF
6
5
4
3
KEY0
64
FUCTION
KEY
KEY1
65
FUCTION
KEY
KEY2
66
77 RESET
MIC2
J722
MIC
LEVEL
RV722
ECHO
LEVEL
LEVEL
RV721
IC722
IC722
MIC1
J721
29
IIC CLK
41
M RESET
43
XRST
T910
S901
F971
-V
REG
+5V
REG
Q941
D543
-VG
+B
-B
POWER
AMP
D901-904
EVER +5.6V
F1
F2
D972-975
AC
IN
IN
RELAY
DRIVE
DRIVE
Q971
IC971
T972
1
3
+5.6V
REG
1
3
RY971
+12V
REG
1
3
+9V
REG
1
3
CD POWER
SWITCH
+5V
REG
1
3
IC911
Q911,912
IC951
IC921
ECHO
AMP
9
IC721
IC961
CD D+5V(SW)
XRST
CD A+5V(SW)
TC D+5V
AUDIO +5V
A+12V
I2C-DATA
I2C-CLK
I2C-CLK
TC A+12V
MIC A+12V
ST A+12V
TC M+9V
CDM M+7V
LED +7V
D906-909
D952
D953
VCD +5V
(UNSW)
(UNSW)
D507
D512
D511
STBY RELAY
84
38
CD POWER
AC CUT
100
Q575
T301
HP901
HRPE901
5
7
7
5
3
2
1
IC301
IC104
TH701
3
2
1
6
5
7
LIMITER
Q721
D920-922
D577
S1003
(A HALF)
S1006
(B HALF)
S1001
(A PLAY)
S1002
(B PLAY)
A REEL
DET
IC1001
B REEL
DET
IC1002
A TRG M+
MOTOR
CONT
M901
M
CAPSTAN
MOTOR
Q1001
RV1002
NORM S
RV1001
HIGH S
S1005
(REC A)
(REC A)
S1009
(REC B)
(REC B)
R-CH
VIDEO
AUDIO
L
R
J601
J401
J402
VIDEO OUT
AUDIO OUT
13
10
9
12
11
IC105
Q104
VIN1
VMP-VIDEO IN
VOUT
SW1
VIN2
FAN ON
SWITCH
Q831
SURROOUND
J102
L
R
R CH
71
67
72
.
S753-758
S760-765
S760-765
S601-605
S791-795
S791-795
48
VKK
-VG
D791-793
59
DISC1
74
DISC2
75
DISC3
LED
DRIVER
Q791-793
5
1
100
93
.
G1
G13
12
22
24
41
43
6
10
47
XIN
83
XOUT
82
.
.
.
78
GAME/VIDEO
1
AUDIO OUT ON/OFF
LED
DRIVER
Q794
SIRCS
4
SIRCS
IC603
DISPLAY KEY
73
POWER KEY
74
STBY LED
75
?/1
S796
DISPLAY
S752
?/1
D794
RESET
12
RESET 1
3
IC502
STBY +5V
D508
VREF
D +5V
D509
D510
D580
D579
VCC
D977
D911
D910
D824
D822
JW973
JW972
JW984
JW990
120
230-240
220
220
120
230-240
EXCEPT VX555:TH
EXCEPT VX555:TH
VX555:TH
VX555:TH
EXCEPT VX555:TH
EXCEPT VX555:TH
IC616
+3.3V
REG
1
3
+3.3V
+3.3V
JW993
VOLTAGE
SELECTOR
INPUT SELECT
3
10
9
1
4
IC401
OUTPUT SELECT
7
2
1
3
IC781
VIDEO SWITCH
/DRIVER
PM901
PM902
2
(Encoder)
26
26
HCD-VX555/VX555J
VIDEO CD SECTION
IC504
IC504
E
G
C
B
CD
SECTION
(Page 24)
F
MAIN
SECTION
(Page 25)
IC101
MAIN
SECTION
(Page 25)
MAIN
SECTION
(Page 25)
CD
SECTION
(Page 24)
: VIDEO
• Signal Path
• R-ch is omitted due to same as L-ch.
: CD
CD MECHANISM CONTROLLER
IC502(2/2)
3
RESOLUTION
4
CHROMA LEVEL
22
BGP
36
DATAI
35
DATAO
88
DF LATCH
37
CLK1
21
H SYNC IN
BUFFER
20
CL680 INTERRUPT
45
V SYNC
BUFFER
87
CL680 HSEL
85
CL680 HRDY
86
680 RESET
65
V.MUTING
HD OUT
112
HD IN
119
HCK
117
H SYNC
101
V SYNC
93
HINT
114
HSEL
121
HRDY
113
RESET
60
CD DATA
4
CD BCK
3
CD LRCK
5
CD C2PO
6
MPEG VIDEO/AUDIO DEC
VIDEO SIGNAL PROC
IC505
MD
9
MC
8
ML
7
DATA
18
BCK
17
LRCK
19
384FSO
20
MCKO
4
111
110
DA DATA
DA BCK
86
DA XCLK
106
VCK IN
75
C OUT
DIGITAL FILTER
D/A CONV
IC509
108
DA LRCK
27MHz
RSTB
10
14
V OUT L
11
V OUT R
1
XT1
24
XT2
L.P.F
R-CH
X503
27MHz
X501
10MHz
LOUT
L.P.F
VIN
1
BGP
5
6
VOUT
C AMP
IC302
TINT
8
VIN
10
CCT
5
1
VOUT
Y AMP
IC303
69
Y OUT
CD DATA/CD BCK/CD LRCK/C2PO
S VIDEO
OUT
J301
4
3
2
1
Y IN
2
C IN
7
MUTE A
1
MUTE B
8
VIDEO AMP
IC304
15
Y OUT1
9
C OUT
12
MIX OUT1
11
MIX OUT2
14
Y OUT2
MD0
MD15
54
52
50
48
.
46
58
56
.
.
44
17
19
21
.
23
.
10
15
.
29
.
.
MA0
MA10
16
19
22
26
.
DQ1
DQ16
A0
A8
RAS
14
UCAS
28
LCAS
29
WE
13
DRAM
IC507
O0
O7
A0
A10
CE
30
FLASH ROM
IC506
20
13
3
.
2
31
.
.
25
29
1
.
12
.
21
23
.
4
5
11
.
.
10
6
.
.
.
42
RAS0
40
CAS
38
MWE
37
MCE
Q301
C
Y
7
10
31
.
34
.
2
5
.
36
39
66
32
33
34
31
12
9
46
41
DAC RESET
DATA1I
CLK1
RTS1
DATA1O
XRESET
CNVSS
BUS XWRL
BUS XHOLD
TXD
SCLK
BUSY
RXD
RST
XRST
PGM
XWR
HOLD
7
5
L.P.F
MCLK
A11
ı
A17
15
13
XIN
XOUT
Q501
Q502
Q531
+3.3V REG
+3.3V
(IC505 VDD)
+5V
VMP-VIDEO IN
CN503
(TO FLASH WRITER)
11
10
9
8
3
4
5
6
27
27
HCD-VX555/VX555J
6-3.
PRINTED WIRING BOARD – MAIN SECTION –
There are a few cases that the part printed on
this diagram isn’t mounted in this model.
this diagram isn’t mounted in this model.
Ref. No.
Location
• Semiconductor Location
Ref. No.
Location
D11
C-12
D51
A-11
D507
B-4
D508
C-1
D509
D-3
D510
D-3
D511
C-1
D512
B-4
D575
E-3
D576
E-3
D577
D-3
D578
D-3
D579
D-3
D580
D-3
D801
H-11
D822
G-10
D824
G-10
D841
I-11
D861
I-8
D892
H-12
D893
H-12
D901
I-9
D902
I-9
D903
H-9
D904
H-9
D906
H-9
D907
I-9
D908
I-9
D909
I-10
D910
J-6
D911
I-6
D912
F-9
D920
H-6
D921
H-6
D922
H-7
D952
G-6
D953
G-6
IC11
D-11
IC51
B-10
IC101
E-7
IC102
D-5
IC103
C-5
IC104
C-6
IC105
E-8
IC201
B-12
IC301
G-5
IC302
H-4
IC303
F-3
IC304
H-3
IC501
C-2
IC502
E-3
IC911
C-8
IC921
H-7
IC951
H-6
IC961
H-7
Q1
C-10
Q2
H-11
Q11
D-10
Q12
D-10
Q101
D-6
Q102
D-5
Q103
I-7
Q104
E-8
Q141
D-5
Q151
D-6
Q152
D-5
Q153
I-7
Q301
I-4
Q302
I-4
Q303
I-4
Q304
H-4
Q305
H-5
Q391
E-1
Q392
E-1
Q393
E-2
Q394
D-1
Q395
E-2
Q396
E-2
Q397
D-1
Q503
E-5
Q504
F-6
Q505
F-7
Q575
E-3
Q821
G-11
Q822
G-11
Q823
G-11
Q824
H-11
Q825
H-11
Q828
G-10
Q829
F-10
Q861
I-8
Q862
I-10
Q863
I-10
Q891
G-11
Q892
H-12
Q911
C-8
Q912
C-9
IC201
IC51
IC202
IC11
IC104
IC102
IC103
IC501
IC502
IC101
IC105
IC106
IC911
IC303
IC304
IC302
IC301
IC951
IC961
IC921
(Page 44)
(Page 42)
(Page 36)
(Page 40)
(Page 40)
(Page 40)
(Page 34)
(Page 34)
TO
VIDEO BOARD
VIDEO BOARD
P
TO
SWITCH
BOARD
(Page 50)
SWITCH
BOARD
(Page 50)
• See page 22 for Circuit Boards Location.
28
28
HCD-VX555/VX555J
6-4.
SCHEMATIC DIAGRAM – MAIN SECTION (1/4) –
• See page 23 for Wavefoms. • See page 58 for IC Block Diagrams.
IC B/D
IC B/D
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