Sony HCD-XB8 / LBT-XB8AV / MDS-B5 Service Manual ▷ View online
— 23 —
— 24 —
HCD-XB8
— 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
38
39
41
42
2
1
45
47
LD DRIVE
Q101
36
37
LD
PD
XRST
FOK
23
27
FOCUS/TRACKING SERVO.
RF AMP
IC101 (1/2)
6
7
12
13
20
22
21
26
25
24
33
19
44
14
15
PD1
PD2
F
E
FEI
FEO
TEO
TEI
CLK
XLT
DATA
TA O
TA M
FE M
FE O
SENS2
SENS1
C.OUT
LOCK
RF O
27 23
15 16 17
10 11 12
75 8
7 9
100
93
86
89 • 90
X101
16.9344MHz
XTAI
•
XTAO
LOUT1
LOUT2
XRST
SCOR
SQSO
SQCK
SENS
DATA
XLAT
CLOK
DIGITAL SIGNAL PROCESSOR
IC103
RF
29 LOCK
CNIN
SEIN
SEIN
DATAO
XLTO
CLKO
MDP
FOK
21
S101
LIMIT
SPOD
9
LASER
DIODE
TRACKING
COIL DRIVE
27
15
16
FOCUS/TRACKING
COIL DRIVE
IC102 (1/2)
FOCUS
COIL DRIVE
26
18
17
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
6
SLED MOTOR
DRIVE
11
•
12
M
M102
SLED MOTOR
SPINDLE MOTOR
DRIVE
3
13
•
14
M
M101
SPINDLE
MOTOR
SL O
SL P
CD CLK
CD DATA
SENS2
SCOR
SQ DATA
SQ DATA
SQ CLK
SENS
XRST
XLAT
S201
UP SW
09
L-CH
R-CH
C
MAIN
SECTION
MUTE
7
3
9
1
M201
TABLE
MOTOR
OUT1
OUT2
IN1
IN2
MOTOR DRIVER
IC201
TBL.L
TBL.R
UP SW
(Page 27)
DISC
TABLE
SENSOR
IC202
T.SENS
— 25 —
— 26 —
IC611
R CH
HP101
PB HEAD
(DECK A)
(DECK A)
L
R
RV311
PLAYBACK
LEVEL
DECK A
IC601
R CH
L
R
RV301
PLAYBACK
LEVEL
DECK B
3
1
IC602
4
REC/PB
EQOUT
REC BIAS
BIAS OSC
T621, Q621, 622
ERASE HEAD
ERASE BIAS
4
2
B IN
A IN
12
PB-A/B
EQIN
10
11
RV301
REC LEVEL
10
RECOUT
BIAS SW
NORM
CROM
70
120
DOLBY
TYPE B
TYPE B
+7.5V
Q623, 901
RIN
6
PB
19
14
16
17
8
20
PB OUT
LM ON/
OFF
BIAS ON/OFF
RM ON/OFF
PB L
REC L
PB A/B
NORM/HIGH
REC/PB/PASS
BIAS ON/OFF
RM ON/OFF
RELAY REC/PB
09
B
MAIN
SECTION
LM ON/OFF
NORM/
HIGH
PAS
DOL
P
R
REC/PB HEAD
(DECK B)
X
DECK PROCESS
DOLBY NR
IC401
HRPE101
RV341
REC
BIAS
24 25
18
NR ON/
OFF
NR ON/OFF
13
S1004
A CrO
2
S1008
B CrO
2
15
A 120/70
B 120/70
M
CAP M SWITCH
Q405, 407
SPEED
CONTROL
Q651
SWITCH
Q406
RV652
HIGH
SPEED
RV651
NORMAL
SPEED
M1
CAPSTAN
MOTOR
CAP M ON/OFF
CAP M H / L
REEL
DETECT
Q1001
A SHUT
B SHUT
REEL
DETECT
Q1002
S1001 (A PLAY)
+5V
S1002 (B PLAY)
A PLAY
B PLAY
A HALF
S1003
(A HALF)
+5V
S1005
(REC A)
S1006
(B HALF)
S1009
(REC B)
SWITCH
Q408, 409
TRIG H / L
B TRIG
A TRIG
4
6
5
TRIGGER
MOTOR
DRIVE
IC402
VZ
IN2
IN1
OUT1
OUT2
2
10
M
M2
TRIGGER
MOTOR
BHALF
(Page 27)
• R CH : Same as L ch
• SIGNAL PATH
: PB (DECK A)
: PB (DECK B)
: REC (DECK B)
• SIGNAL PATH
: PB (DECK A)
: PB (DECK B)
: REC (DECK B)
R CH
CN403
1
3
— DECK SECTION —
HCD-XB8
HCD-XB8
— 27 —
— 28 —
+
+
BB22
BB12
EQUALIZER / VOLUME
IC201
DBFB
SWITCH
Q201
MUTE
Q254
MUTE
Q602
REAR
REAR
CENTER
CENTER
FRONT
DBFB
POWER ON/OFF
R RELAY
MUTE
Q601
MUTE
SWITCH
Q120
45
44
43
42
38
40
39
41
X601
8MHz
67 - 100 • 1
51 - 66
FL601
FLUORESCENT INDICATOR TUBE
VF
12
13
XOUT
XIN
37
33
KEY 5
KEY 1
JOG A
JOG B
26
41
LED1
LED13
•
LED15
LED18
LED SELECT
SIRCS
39
DISPLAY CONTROL
IC601
DATA
CLOCK
28
27
14
RESET
LED
SWITCH
PANEL LED
REMOTE
CONTROL
RECEIVER
IC602
LED
CONTROL
Q601
ROTARY
ENCODER
KEY
MATRIX
6
OPEN
CD POWER
STK MUTE
D+5V
SEG1-35
GR1-16
24
40
VOL A
VOL B
ROTARY
ENCODER
VOLUME
S701
S681
S711
Q602,603
42
43
43
44
45
SPEANA 1
SPEANA 2
SPEANA 3
SPEANA 4
SPEANA 2
SPEANA 3
SPEANA 4
D/A
6
5
7
AMP
IC861
1
7
3
5
IC603
AMP
REAR
CENTER
FRONT
J101
MICON
INTERFACE
EQ
PHONO
IN
L
3
99
62
69
71
32 33 34
4
3
65
64
LATCH
REC 2A
PB L
REC L
1
2
3
4
5
9
10
6
J101
VIDEO
(AUDIO)
IN
L
INPUT SELECT
IC102
V
TC
ST
CD
B
A
INH
29
30
28
MUTE
PHONO EQ AMP
IC101
Q121
J761
MIC
LEVEL
RV760
MIC
3
1
3
1
6
7
MIC AMP
IC760
9
96
26
27
28
97
94
95
87
88
D951
RESET
SWITCH
Q951
RESET
IC951
+5V
11
10
X701
5MHz
15
20
14
13
09
46
100
CD POWER
STK MUTE
44
45
66
70
69
68
72
COM DOUT
COM CLK
COM CLK
ST DIN
STEREO
TUNED
ST CE
ST MUTE
ST DOUT
RELAY
TC MUTE
A PLAY SW
B PLAY SW
B PLAY SW
427 LAT SW F CON
60
61
18
76
73
74
57
48
47
77
36
34
58
TBL L
TBL R
SCOR
T SENS
SENS 2
SENS
XRST
CD CLK
CD DATA
UP SW
SQ CLK
SQ DATA IN
XLT
D+5V
Q201
D201
(DISC No.)
98
2
1
POWER
DBFB H/L
TA MUTE
55
56
IIC DATA
IIC CLK
RESET
AC CUT
X1
X2
XT1
XT2
X702
32.768KHz
MASTER CONTROL
IC701
7
R RELAY
RDS DATA
RDS INT
RDS INT
EXCEPT
AEP,UK
AEP,UK
AEP,UK
89
90
91
92
93
82
83
83
84
85
86
PB A/B
R/P PASS
BIAS
REC MUTE
NR ON/OFF
A SHUT
B SHUT
B HALF
A HALF
EQ H//N
CAP H/N
A TRG
B TRG
B TRG
TRG LOW
CAP M ON/OFF
22
21
TRAY LED
RELAY REC/PB
ST L
RDS INT
RDS DATA
COM DIN
COM DATA
STEREO
TUNED
ST CE
MUTE
L CH
TBL. L
TBL. R
SCOR
T. SENS
SENS 2
SENS
X RST
CD CLK
CD DATA
UP SW
SQ CLK
SQ DATA
X LAT
B
DECK
SECTION
C
CD
SECTION
A SHUT
BIAS ON/OFF
B SHUT
RM ON/OFF
LM ON/OFF
REC/PB PASS
B HALF
A HALF
A PLAY
A PLAY
B PLAY
PB A / B
NORM/HIGH
NR ON/OFF
CAP M H/L
A TRG
B TRG
B TRG
TRIG H/L
CAP M ON/OFF
INPUT CHANGE
MUTE
CONTROL
Q123,124
54
LIN
C-OUT
S-OUT
S-OUT
L-OUT
DATA
CLK
EN
41
42
40
34
35
37
DOLBY PRO LOGIC
IC601
REAR
FRONT
3
4
4
2
8
10
2
3
4
DATA
CLK
EN
3
4
4
2
13
DELAY
IC602
S-IN
S-OUT
L-MIX
OUT
16
23
24
XTAL
X601
8MHz
8MHz
XTAL
CENTER
FRONT
FRONT
41
42
VOL LAT
PL LAT
3
4
1
2
A
TUNER
SECTION
(Page 26)
(Page 20,
22)
22)
(Page 24)
L-IN
61
3
14
2
8
9
4
3
1
3
1
10
15
VOLUME
IC604
OUT
LATCH
DATA
CLK
IN
IN
OUT
MUTE
SWITCH
Q912
D
POWER
SECTION
3
5
4
10
9
11
INPUT SELECT
IC103
S.WOOFER
MODE
SWITCH
Q206
DBFB
SWITCH
Q202
67
62
29
46
38
3
10
•
15
•
16
•
18
20
•
22
•
23
•
25
•
47
L+R
DOOR SW
= AMS +
• R CH: Same as L ch
• SIGNAL PATH
: FM
: CD
: PB
: REC
: VIDEO
: MIC
• SIGNAL PATH
: FM
: CD
: PB
: REC
: VIDEO
: MIC
— MAIN SECTION —
— 29 —
— 30 —
— POWER SECTION —
• R CH : Same as L ch
• SIGNAL PATH
: FM
• Abbreviation
EE: East European model.
MX: Mexican model.
AR: Argentine model.
AUS: Australian model.
SAF: South African model.
• SIGNAL PATH
: FM
• Abbreviation
EE: East European model.
MX: Mexican model.
AR: Argentine model.
AUS: Australian model.
SAF: South African model.
Rch
Q323
Rch
1
2
4
7
PROTECTOR
IC301
PROTECT
SWITCH
Q301
RY402
OVER LOAD
DET
Q601,651
THERMAL
DET
Q670,671
THP670
1
10
6
13
18
RY401
–1
–2
POWER AMP
IC601
IC601
OVER LOAD
DET
Q201
Rch
POWER AMP
IC201
FRONT
REAR
CENTER
DBFB
STK MUTE
R RELAY
D5V
SWITCHED
D5V
SW
Q905
D905
+5V
D7V
A+7.5V
A–7.5V
+5V REG
IC902
+7V REG
IC903
+12V REG
IC904
+12V
ST10V
PRO-LOG 10V
+10V REG
IC905
+7V, –7V REG
IC901
Q907
Q901
VFDP
E,MX,AR,PX,AUS,SAF
AEP,UK,EE,CIS
E,AR,PX,SAF
UNREG
–12V
POWER B+
POWER B–
SURR B+
SURR B–
RY101
AC
IN
AU/D5V SW
CD POWER
6
1
10
REAR
CENTER
FRONT
FRONT
SPEAKER
TM401
PHONES
J760
Rch
HP / SP
SWITCHING
Q401,405
FRONT
REAR
CENTER
SURROUND
SPEAKER
TM402
6
–1
RELAY
DRIVE
Q404
Q404
Rch
FAN MOTOR
DRIVER
Q961, 962
M
UNREG
–12V
–12V
M901
FAN
MOTOR
REAR
CENTER
3
1
3
1
1
10
2
9
4
3
1
3
1
RELAY
DRIVE
Q403
RELAY
CONTROL
Q402
MUTE
SWITCH
Q331
POWER ON/OFF
CD REG
Q904
+5V REG
Q906
+7.5
–7.5
EN
V
CC
V
EE
RECT
D901
D901
RECT
D110,111
RELAY
DRIVER
Q111-113
VF REG
Q941
RECT
D104,105
VOLTAGE
SELECTOR
S501
RECT
D101
D101
RECT
D102
D102
RECT
D302,303
VF
VF
T501
POWER
TRANSFORMER
MAIN
SECTION
D
09
(Page 28)
HCD-XB8
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