Sony HCD-XB8 / LBT-XB8AV / MDS-B5 Service Manual ▷ View online
— 73 —
• Tuner section
IC21 LC72130
6-19. IC BLOCK DIAGRAMS
1
2
3
4
5
6
7
8
XIN
B03
CE
IFIN
AOUT
2
AIN1
AIN2
D1
CL
B04
D0
B01
I01
B02
XOUT
PD1
VSS
PD2
FMIN
AMIN
AOUT1
VDD
I02
B05
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
PHASE DETECTOR
CHARGE PUMP
SWALLOW COUNTER
1/16.1/17 4bits
SWALLOW COUNTER
1/16.1/17 4bits
POWER
ON
RESET
1/2
C B
I / F
I / F
REFERENCE
DIVIDER
REFERENCE
DIVIDER
C B
I / F
I / F
2
DATA SHIFT REGISTER
LATCH
IC41 LA1835
1
2
3
4
5
6
7
8
FM-IN
DET
IF
AM.SD
V
CO-STOP
AM/FM
AM.SD
REG
AM-IF
VCC
GND
TU-LED
IF-BUFF
ST-LED
FM-SD
AM-OSC
FM-AFC
AM-RF-IN
AGC
AM.CUT
AM/FM
VCO
MPX-IN
OUT R
OUT L
AMP-IN R
AMP-IN L
R
L
AM-MIX
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
REG
GND
COMP
AGC
VCC
FM
DET
AM
IF
AM
DET
FM
IF
LEVEL
DET
TUNING
DRIVE
S-CURVE
S METER
AM/FM
IF
BUFF
PHASE
DET
STEREO
DRIVE
STEREO
SW
PILOT
DET
VCO
FF
FF
FF
AM/FM
SW
TRIG
MUTE
DECODER
ANTI BIRDIE
AM
RF.AMP
AM
MIX
AM
OSC
ALC
BUFF
AM
FM
— 74 —
IC1701 IR3R42
OSC
1/2
1/2
PHASE
WAVEFORM
SEP.
GATE
SAMPLE
& HOLD
BUFFER
REGULATOR
PHASE
COMPARATOR
PHASE
COMPARATOR 2
MUTE
TRIGGER
1
2
3
4
5
6 7
8
9
10
20
19 18
17
16
15
14 13
12
11
AMP
AMP
AMP
LAMP
VCO STOP
ST
LOUT
ROUT
LHC
RHC
POUT
IN
VCC
GND
VCO
LPF1A
LPF1B
DETIN
LPF2A
LPF2B
SUBIN
SUBOUT
MON
IC1752 BU1922
QUALITY BIT
GENERATOR
DEFFERENTIAL
DECODER
BIPHASE
SYMBOL
SYMBOL
DECODER
OSCILLATOR
AND
DIVIDER
57kHz
BANDPASS
(8th ORDER)
CONTAS LOOP
VARIABLE AND
FIXED DIVIDER
FIXED DIVIDER
REFERENCE
VOLTAGE
ANTI-
ALIASING
FILTER
CLOCKED
COMPARATOR
TEST LOGIC AND OUTPUT
SELECTOR SWITCH
RECONSTRUCTION
FILTER
14
15
16
13
12
11
10
9
3
2
1
4
5
6
7
8
CLOCK REGENERATION
AND SYNC
VP1
RDCL
TS7
OSCO
OSCI
V
DDD
V
SSD
TEST
TSTL
D
QUAL
RDDA
Vref
MUX
V
DDA
V
SSA
CIN
SCOUT
— 75 —
• CD section
IC101 CXA1992AR
–
+
+
–
–
+
+
1
2
3
4
5
6
7
8
9
10
20
19
17
16
15
14
13
12
11
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
52
51
50
49
48
47
+
–
+
–
+
–
+
–
–
+
–
+
–
+
+
–
+
–
+
–
+
–
–
–
+
+
–
–
+
–
+
+
–
+
–
–
+
–
–
+
–
+
–
+
–
–
+
–
+
–
+
–
+
+
–
+
–
–
+
+
–
–
+
–
+
+
–
–
18
–
+
–
+
–
+
+
–
+
–
–
+
Charge
up
FEO
FEI
FDFCT
FGD
FLB
FE_O
FE_M
SRCH
TGU
TG2
FSET
TA_M
TA_O
SL_P
SL_M
SL_O
ISET
VCC
VCC
LOCK
CLK
XLT
DATA
XRST
C. OUT
SENS1
SENS2
FOK
CC2
CC1
CB
CP
RF_I
RF_O
RF_M
RFTC
LD
PD
PD1
PD2
FE_BIAS
F
E
EI
VEE
TEO
LPFI
TEI
ATSC
TZC
VC
FZC
TM2
VEE
VEE
TM3
TM5
TM4
TM6
VCC
VCC
TM7
ISET
TTL
↓
IIL
IIL
↓
TTL
IIL
↓
TTL
IIL DATA REGISTER
INPUT SHIFT REGISTER
ADDRESS DECODER
SENS SELECTOR
OUTPUT DECODER
INPUT SHIFT REGISTER
ADDRESS DECODER
SENS SELECTOR
OUTPUT DECODER
DFCTO
IFB1-6
BAL1-4
TOG1-4
BAL1-4
TOG1-4
FS1-4
TG1-2
TM1-7
PS1-4
FOH
FOL
TGH
TGL
BALH
BALL
ATSC
TZC
FZC
FSET
TG2
VEE
VCC
FS1
FS2
FOCUS
PHASE COMPENSATION
PHASE COMPENSATION
DFCT
FS4
TRACKING
PHASE COMPENSATION
PHASE COMPENSATION
TG1
TM1
DFCT
FZC COMP.
VEE
VCC
VCC
TDFCT
TZC COMP.
ATSC
WINDOW
COMP.
WINDOW
COMP.
E-F BALANCE
WINDOW COMP.
WINDOW COMP.
TRK. GAIN
WINDOW COMP.
WINDOW COMP.
FO. BIAS
WINDOW
COMP.
WINDOW
COMP.
VEE
TGFL
TOG1
TOG2
TOG3
TOG4
BAL1
BAL2
BAL3
BAL4
IFB1
IFB2
IFB3
IFB4
IFB5
IFB6
FE AMP
VEE
E IV AMP
F IV AMP
VCC
APC
VCC
VEE
LASER POWER CONTROL
VEE
PD1 IV
AMP
AMP
PD2 IV
AMP
AMP
RF SUMMING
AMP
AMP
VCC
VEE
VEE
LEVEL S
LEVEL S
VEE
MIRR
VCC
DFCT
FOK
VCC
LDON
LPCL
LPC
TGFL
MIRR
DFCT1
CC1
— 76 —
IC102 BA5941FP
+
–
LEVEL SHIFT
+ –
+
–
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
LEVEL SHIFT
+ –
+
–
MUTE
+
–
+
–
LEVEL SHIFT
+ –
+
–
LEVEL SHIFT
+ –
+
–
+
–
15
16
17
18
19
21
20
22
26
25
24
23
+
–
NC
Vcc
Vcc
Vcc
VCC
BIAS IN
IN1B
IN1A
IN2B
IN2A
GND
GND
MUTE
VCC
OUT2A
OUT2B
OUT1A
OUT1B
IN4B
IN4A
IN3B
IN3A
OP OUT
OP IN (–)
OP IN (+)
GND
NC
VCC
OUT3A
OUT3B
OUT4A
OUT4B
3RD-ORDER NOISE SHAPER
+
–
+
–
PWM
PWM
+
–
+
–
VDD
VSS
LMUT
RMUT
TES2
CKOUT
SQCK
SQSO
SENS
DATA
XLAT
CLOK
SEIN
CNIN
DATO
XLTO
CLKO
SPOA
SPOB
SPOC
SPOD
XLON
FOK
VDD
VSS
MON
MDP
MDS
LOCK
PWMI
1
2
3
4
5
6
7
8
9
10
11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30
LRCK
WDCK
ASYE
ASYO
ASYI
BIAS
RF
AVDD
CLTV
AVSS
FILI
FILO
PCO
VCTL
V16M
VCKI
VPCO1
VPCO2
TES1
TES0
43
42
41
40
39
38
37
36
35
34
33
32
31
50
49
48
47
46
45
44
NC
AVSS
AVDD
AOUT1
AIN1
LOUT1
AVSS
XVDD
XTAI
XTAO
XVSS
AVSS
LOUT2
AIN2
AOUT2
AVDD
AVSS
NC
NC
XRST
88
89
90
91
92
93
94
95
96
97
98
99
100
81
82
83
84
85
86
87
SYSM
VDD
VSS
EXCK
SBSO
SCOR
WFCK
EMPHI
EMPH
DOUT
C4M
FSTT
XTSL
MNT0
MNT1
MNT3
XROF
C2PO
RFCK
GFS
XPCK
XUGF
GTOP
VDD
VSS
BCKI
BCK
PCMDI
PCMD
LRCKI
71
70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
80 79 78 77 76 75 74 73 72
ASYMMETRY
CORRECTOR
DIGITAL
PLL
CLOCK
GENERATOR
D / A
INTERFACE
DIGITAL CLV
SERIAL-IN
INTERFACE
OVER SAMPLING
DIGITAL FILTER
SUB CODE
PROCESSOR
TIMING
LOGIC
CPU
INTERFACE
SERVO
AUTO
SEQUENCER
ERROR
CORRECTOR
16K RAM
DIGITAL OUT
OSC
EFM
DEMODURATOR
IC103 CXD2519Q
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