Sony HCD-BX3 / HCD-DX3 / MHC-BX3 / MHC-DX3 Service Manual ▷ View online
21
21
HCD-BX3/DX3
SECTION 7
DIAGRAMS
7-1. CIRCUIT BOARD LOCATION
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
¢
: internal component.
•
C
: panel designation.
Note on Printed Wiring Boards:
• X
: parts extracted from the component side.
• b
: Pattern from the side which enables seeing.
• Indication of transistor.
Note:
The components identi-
fied by mark
The components identi-
fied by mark
!
or dotted
line with mark
!
are criti-
cal for safety.
Replace only with part
number specified.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
Les composants identifiés par
une marque
!
sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
•
U
: B+ Line.
•
V
: B– Line.
•
H
: adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
• Signal path.
F
: FM
f
: AM
E
: PB (DECK A)
d
: PB (DECK B)
G
: REC (DECK B)
J
: CD
c
: digital out
• Abbreviation
CND : Canadian model
AUS
AUS
: Australian model
G
: German model
AED
: North European model
EA
: Saudi Arabia model
MY
: Malaysia model
SP
: Singapore model
TH
: Thai model
TW
: Taiwan model
KR
: Korea model
MX
: Mexican model
AR
: Argentina model
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
(In addition to this, the necessary note is printed in each block.)
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
Q
• WAVEFORMS
PANEL Board
LEAF SW Board
HEAD (A) Board
HEAD (B) Board
TRANS Board
SUB-TRANS Board
BD Board
DRIVER Board
MOTOR Board
ADDRESS SENSOR Board
MAIN Board
AMP Board
1
T301
4
REC MODE
135Vp-p
81kHz
2
IC401
qd
STOP MODE
3
IC401
qa
STOP MODE
4.0Vp-p
16.0MHz
3.0Vp-p
32.768kHz
1
IC601
oa
STOP MODE
5.2Vp-p
12.5MHz
– MAIN BOARD –
– PANEL BOARD –
1
IC101
yj
CD PLAY MODE
6.4Vp-p
16.9344MHz
1.2Vp-p
2
IC101
ta
CD PLAY MODE
3
IC101
ra
CD PLAY MODE
4
IC101
el
CD PLAY MODE
400nsec/div
approx 200mVp-p
approx 170mVp-p
– BD BOARD –
HCD-BX3/DX3
22
22
7-2. BLOCK DIAGRAMS
TUNER/CD SECTION
: FM
: CD
• Signal Path
• R-CH is omitted due to same as L-CH.
: DIGITAL OUT
FM 75
Ω
G
AM
TM601
ANT IN
1
7
IF OUT
8
OSC OUT
5
VT
FE601
AR,AUS,E,EA,KR,MX,MY,SP,TH,TW MODEL
ANT IN
8
1
IF OUT
3
F OUT
4
VT
FE602
US,CND MODEL
ANT IN
1
7
IF OUT
8
OSC OUT
5
VT
FE603
AED,AEP,CIS,G,UK MODEL
JR609
+B
A+12V
Q602
FM
10
FM OSC
15
VT1 IN
18
VT1
17
PD1
19
PLL
IC651
12
FM/AM IF
7
FM
14
AM OSC
2
VCO STOP
8
IF REQ
6
DO
4
DI
5
CL
3
CE
XIN
1
XOUT
24
X651
4.5MHz
RF IF
AMP
AMP
Q601
CF601
CF602
DO
DI
CL
CE
1
13
3
4
5
5
12
2
14
15
11
6
7
9
RB641
19
AM MIX OUT
IF OUT
9
AM/IF
12
AM OSC
24
VCO STOP
13
IF REQ MUTE
8
AM RF IN
20
AM OSC
22
V REG
23
FM IF
1
AM/FM IF MPX
IC601
11
L OUT
10
R OUT
BUFFER
Q611
LPF601
LPF
18
AM IF IN
IFT601
16
FM/AM DET
R-CH
A
MAIN
SECTION
3
1
IC681
MUX
4
XO
14
XI
13
2
DATA
16
INT
RDS
IC682
6
TUNED
7
STEREO
3
FM SD ADJ
AED,AEP,CIS,G,UK ONLY
RV611
XT681
4.332MHz
RDS DATA
21
RDS INT
20
ST MUTE
22
ST CE
25
ST CLK
28
ST DOUT
26
ST DIN
27
STEREO
23
TUNED
24
MASTER CONTROL
IC401(1/2)
DO
CL
CE
DI
DI
OPTICAL PICK-UP
BLOCK
(KSM-213D)
A
B
C
D
E
F
LD
VC
+5V
GND
PD
VR
LD
DRIVE
FOCUS
COIL
TRACKING
COIL
16
Q101
RF AMP
IC103
VC
12
A
5
B
6
C
7
D
8
E
11
F
10
LD
3
PD
4
IC102
MOTOR/COIL DRIVE
CH1RO
13
CH1FO
14
CH2RO
11
CH2FO
12
CH3RO
18
CH3FO
17
M
M102
SLED
MOTOR
CH4RO
16
CH4FO
15
M
M101
SPINDLE
MOTOR
F+
F-
T+
T-
3
CH1RI
2
CH1FI
6
CH2RI
5
CH2FI
23
CH3RI
24
CH3FI
25
CH4INS
20
MUTE
MDP
26
SFDR
28
SRDR
29
TRDR
31
TFDR
30
FRDR
33
FFDR
32
DIGITAL SIGNAL PROC.
D/A CONV.
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
DIGITAL
OUT
OPTICAL
CD
DIITAL OUT
IC201
75
R OUT
5
DATA
B
MAIN
SECTION
R-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 DATA
35
CD CLK
37
XLT
42
SQ CLK
33
SCOR
19
SQ DATA
32
XRST
43
HOLD
41
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
TURN
MOTOR
M721
8
SENS
SENS
40
Ver 1.2 2003.11
HCD-BX3/DX3
23
23
MAIN SECTION
RESET
: FM
: CD
• Signal Path
• RCH is omitted
: PB (DECK A)
: PB (DECK B)
: REC (DECK B)
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
REC(L)
LEVEL
LEVEL
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
A
TUNER
SECTION
B
CD
SECTION
MD/VIDEO
(AUDIO)
R-CH
L-CH
LOUT
L-CH
J101
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 PROC.
IC301
INPUT SELECT
TONE/VOL CONT
IC101
IN2A
40
IN2C
38
IN2D
37
INVOL OUT2
35
IN2B
39
24
VOL OUT2
DATA
21
CLOCK
22
R-CH
DBFB
SWITCH
Q503
DBFB
CONT
Q101,102
5
6
7
IC102
MUTE
Q103
Q103
MUTE
CONT
CONT
Q504,505
POWER
AMP
IC501
1
12
6
MUTE
Q581
MUTE
CONT
CONT
Q503,504
MUTE
Q862
MUTE
CONT
CONT
Q861
D841
OVER LOAD
DETECTOR
Q551
OVER HEAT
DETECTOR
Q582,583
+B
D582-583
PROTECT
DETECTOR
Q821,822
PROTECT
CONT
Q823
PROTECT
SWITCH
Q828,829
RELAY
DRIVE
DRIVE
Q824,825
RY801
J631
PHONS
R CH
R CH
FAN
FAN
DRIVE
Q961,962
L
R
TM801
SPEAKER
91 B SHUT
90 A SHUT
69 B PLAY
68 A PLAY
93 B HALF
67 A HALF
77
PB A/B
A TRIG
DRIVE
CAP MOTOR
DRIVE
Q396,397
Q393,394
B TRIG
DRIVE
DRIVE
Q391,392
CAP MOTOR
SPEED CONT
Q395
A TRIG
57
B TRIG
58
CAP M H/L
59
CAP M CONT
60
B TRG M+
19
79
TC RELAY
IC401(2/2)
MASTER CONTROL
76
EQ H/N
78
ALC
75
BIAS
74
REC MUTE
73
NR ON/OFF
72
R/PB PAS
71
TC MUTE
70
AMS IN
4
DATA
5
CLK
83
DBFB ON/OFF
DC
BIAS
Q141
+6V
A+12V
84
LINE MUTE
100
STK MUTE
87
RELAY H
82
PROTECT
30
IIC DATA
10
XC IN
11
XC OUT
15
X IN
13
X OUT
32.768kHz
X401
16MHz
X402
BPF 0
BPF 5
P1
P35
G1
G17
FLOURESCENT
INDICATOR TUBE
DISPLAY CONTROL
IC601
F1
F2
LED
DRIVER
Q606-614
D614-620
11
FUCTION
KEY
SIRCS
IC603
97 I2C DATA
98 I2CCLOCK
VOL A
1
VOL B
2
SIRCS
100
S601
VOLUME
X601
12.5MHz
FL601
IC602
50
52
85
.
49
33
20
25
ALL BAND
26
HEADPHONE
3
S623-633
5
TUNER
6
CD
7
TAPE A/B
8
MD/VIDEO
11
GROOVE
LED
DRIVER
Q624-630
LED
DRIVER
Q604
28
STANDBY
STANDBY
D601
LED
DRIVER
27
TIMER
TIMER
D602
Q605
17
12
SPEANA
BPF
6
5
4
3
KEY0
17
FUCTION
KEY
S619-621
KEY1
18
FUCTION
KEY
KEY2
19
96 WAKE UP
92 RESET
89
XIN
90
XOUT
MIC 1
J721
MIC
VOL
RV722
IC722
IC722
29
IIC CLK
18
WAKE UP
7
AC CUT
T971
F973
S971
JW972
F971
AUS,KR,TH MODEL
-V
REG
+5V
REG
Q972
D541
VP
+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
AED,AEP,CIS,CND,G,UK,US MODEL
RY971
+12V
REG
1
3
+9V
REG
1
3
CD POWER
SWITCH
+5V
REG
1
3
IC911
Q911,912
IC951
IC921
IC971
D+5V(SW)
A+5V(SW)
RDS D+5V
AUDIO +5V
A+12V
TC A+12V
MIC A+12V
ST A+12V
TC M+9V
M+7V(UNSW)
LED +7V
D906-909
D953
D952
D508
STBY RELAY
81
85
CD POWER
RESET
12
Q501
IC501
16
T301
D822
HP901
HRPE901
5
7
7
5
3
2
1
IC301
IC104
JR907
AR,AUS,E,EA,KR
MX,MY,SP,TW MODEL
AED,AEP,CIS,CND
G,UK,US MODEL
EXCEPT
US,CND MODEL
AR,AUS,E,EA,KR
MX,MY,SP,TH,TW
MODEL
AR,AUS,E,EA,KR
MX,MY,SP,TH,TW
MODEL
AR,AUS,E,EA,KR
MX,MY,SP,TH,TW
MODEL
AR,AUS,E,EA,KR
MX,MY,SP,TH,TW
MODEL
15
REC/PAUSE
16
SURROUND
S637-646
S647
3
2
1
6
5
7
LIMITER
Q721
AR,AUS,E,EA,KR
MX,MY,SP,TH,TW
MODEL
D931-933
D506
D543
D542
F972
AR,AUS,E,EA
MY,SP,TW MODEL
AR,E,EA,KR,MY
SP,TH,TW MODEL
AR,E,EA,MY
SP,TW MODEL
S1003
A HALF
S1006
B HALF
S1001
A PLAY
S1002
B PLAY
S1004
A 120/70
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
HCD-BX3/DX3
24
24
7-3. PRINTED WIRING BOARD BD SECTION
• See page page 21 for Circuit Boards Location.
(Page 26)
1
2
A
B
C
D
E
F
3
4
5
6
(KSM-213D)
Ref. No.
Location
IC101
D-2
IC102
C-4
IC103
B-3
Q101
A-4
• Semiconductor
Location
Ver 1.2 2003.11
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