Sony HCD-XB4K / LBT-XB4K / LBT-XB4KS Service Manual ▷ View online
6
DOLBY
B
REC
MAIN
SECTION
REC
PB
DOL
PAS
PB
35
37
70
120
2
4
10
9
11
22
12 13 14 15 16 17 18 19 20
REC
EQ
BIAS
SW
24
25
IC1501
HEAD AMP
DECK PROCES
PB A/B
A120/170
NORM/HIGH
NORM/CROM/METAL
BIAS ON/OFF
RM ON/OFF
NR ON/OFF
REC/PB/PASS
LM ON/OFF
3
1
PBEQ
AMP
5
7
PBEQ
AMP
IC611
IC601
RV301
PB LEVEL
RV311
PB LEVEL
R-CH
X
R-CH
R-CH
1
2
3
4
RV341
REC BIAS
Q621,622
BIAS OSC
BIAS OSC
Q623
SWITCH
T621
BIAS
TRAP
+7V
ERASE
(HEAD)
REC/PB HEAD
(B DECK)
HRPE101
HP101
PLAYBACK HEAD
(A DECK)
S1005
A CrO2
S1008
B CrO2
PB R-CH
REC R-CH
96
86
82
85
83
84
94
95
97
28
Q1533
SWITCH
Q651
CAPSTAN MOTOR
CONTROL
Q1534,Q1535
SWITCH
Q1531,Q1532
CAPSTAN MOTOR
SWITCH
M
M
B+
(+12V)
RV651
NORMAL SPEED
RV652
HIGH SPEED
M1
CAPSTAN
MOTOR
4
5
1
6
10
2
IC1502
TRIGGER
MOTOR
DRIVE
M2
TRIGGER
MOTOR
S1001
A PLAY
S1002
B PLAY
+5V
S1004
(A HALF)
S1007
(B HALF)
S1006
(REC A)
S1009
(REC B)
RV105
REC LEVEL
C331,L331
NORM
CROM
87
88
89
90
91
92
93
8
F
G
IC602
PB / REC SW
(page 43)
MAIN
SECTION
(page 43)
H
MAIN
SECTION
(page 43)
I
MAIN
SECTION
(page 43)
•
R CH : Same as L CH
•
SIGNAL PATH
:PB (DECK A)
:PB (DECK B)
:REC (DECK B)
M
M
M
1
3
7
9
61
60
62
76
77
IC201
MOTOR
DRIVE
Q201
SWITCH
IC202
DISC TABLE
SENSOR
M201
TABLE MOTOR
S201
UP SWITCH
12
.
11
14
.
13
7
8
9
10
12 11
100
21
27
75
17
16
15
14
13
23
29
44
89
90
86
93
6
7
20
19
13
12
21
22
33
23
24
25
26
27
36
37
38
39
41
42
1
2
4
5
6
10
9
18
17
16
15
26
27
3
6
16
14
OPTICAL PICK-UP BLOCK
DETECTOR
K
B+
E
A
B
D
C
F
A
D
C
B
LASER
DIODE
DIODE
TRACKING
COIL
FOCUS
COIL
2-AXIS
DEVICE
DEVICE
SLED / SPINDLE
MOTOR DRIVE
IC102 (2 / 2)
M102
SLED MOTOR
M101
SPINDLE MOTOR
SLED MOTOR
DRIVE
SPINDLE MOTOR
DRIVE
SLO
SL-P
SLED
SERVO
IC101 (2 / 2)
F+
F-
T+
T-
FOCUS
COIL DRIVE
TRACKING
COIL DRIVE
FOCUS / TRAKING
COIL DRIVE
IC102 (1 / 2 )
MUTE
Q101
LD DRIVE
PD1
PD2
F
E
LD
PD
XRST
SENS2
TA-O
TA-M
FE-M
FE-O
LOCK
CLK
XLT
DATA
FOK
SENS1
C,OUT
RFO
73
S101
LIMIT SWITCH
R-CH
LOUT1
LOUT2
RF
CNIN
SEIN
FOK
FOK
DATAO
XLTO
XLTO
CLKO
LOCK
IC103
DIGITAL SIGNAL
PROCESSOR
SPOD
MDP
SCOR
XRST
CLOCK
XLAT
DATA
SENS
SQS0
SQCK
18
57
48
58
47
74
34
36
MAIN
SECTION
MAIN
SECTION
MAIN
SECTION
C
D
E
•
R CH:Same as L CH
•
SIGNAL PATH
:CD
IC101(1/2)
FOCUS/TRACKING
/SLED/SERVO
RF AMP
X101
16.9344MHz
(page 43)
(page 43)
(page 43)
– DECK SECTION –
– 42 –
– 41 –
– CD SECTION –
HCD-XB4K
– MAIN SECTION –
– 43 –
– 44 –
HCD-XB4K
– 51 –
– 52 –
•
IC Block Diagrams
IC201
TA8409S
1
2
3
4
5
6
7
8
9
HEAT
CUT OFF
BLOCK
STANDBY
BLOCK
VREF
BLOCK
IN2
VCC
OUT2
NC
GND
VS
OUT1
VREF
IN1
– 64 –
•
IC Block Diagram
IC602
µPC1330HA
1
2
3
4
5
6
7
8
9
INVERTER
COMPARATER
SW R1
GND
SW P1 CONT
GND
VCC
SW P2 GND
SW R2
IC1502
LB1641
1
2
3
4
5
6
7
8
9
10
GND
MOTOR
DRIVE
NOISE
FILTER
CLAMP
FWD.IN
REV.IN
VCC 1
VCC 2
NOISE
FILTER
MOTOR
DRIVE
MOTOR
DRIVE
MOTOR
DRIVE
T.S.D
O.C.P
FWD/REV/STOP
CONTROL LOGIC
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