Sony HCD-W550 / MHC-W550 / MHC-W770AV Service Manual ▷ View online
4-13. IC BLOCK DIAGRAMS
+
–
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
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
TSD
CONTROL
LOGIC
PO WER
SAVE
GND
RIN
VREF
OUT2
OUT2
RNF
GND
VM
VCC
FIN
OUT1
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
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
IC102 BA5941FP-E2
— 38 —
IC801 BA6286N
IC402 LB1641
IC103 CXD2519Q
–
+
+
–
–
+
+
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
1
5
2
7
3
6
4
POWER
AMP.
AMP.
POWER
AMP.
AMP.
CONTROL
INPUT
AMP.
INPUT
AMP.
REG
8
VCC
VCC
REFERENCE
OUT2
OUT1
IN1
IN2
GND
1
2
3
4
5
6
7
8
9
INVERTER
COMPARATER
SW R1
GND
SW P1
CONT
GND
VCC
SW P2
GND
SW R2
— 39 —
IC101 CXA1992AR
IC701 M54641L
IC602 UPC1330HA
4-14. IC PIN FUNCTION
• IC101 SYSTEM CONTROL (UPD780016YGF-016-3BA)
• IC101 SYSTEM CONTROL (UPD780016YGF-016-3BA)
— 40 —
Pin No.
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
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
I/O
—
O
O
O
O
O
O
—
—
O
I
—
—
—
I
—
—
I
O
I
—
—
—
—
I
I
I
I
I
I
I
—
—
I
—
O
—
—
—
—
—
I
—
—
—
O
O
O
O
O
Description
Not used.
LED control.
LED control.
LED control.
LED control.
LED control.
LED control.
Not used.
Ground.
X’tal (5MHz).
X’tal (5MHz).
5V.
Not used.
Not used.
Reset signal input.
Not used.
Not used.
CD Q data request.
Soft operation check port.
AC power supply check.
Not used.
Not used.
5V.
5V.
CD adjustment port.
Reel pulse detection.
Reel pulse detection.
Cassette half detection.
Key input.
Key input.
Key input.
Not used.
Ground.
CD data input.
Not used.
Clock for data input.
Not used.
Ground.
Ground.
Ground.
Not used.
BD status input.
Ground.
Not used.
Not used.
CD power.
CD data output.
CD clock.
LED control.
LED control.
Pin Name
NC
LED 1
LED 2
LED 5
LED 6
LED 3
LED 4
NC
Test
X2
X1
Vdd
XT2
XT1
Reset
NC
NC
SCOR
SOFT TEST
AC CUT
NC
NC
Vdd
AVdd
ADJ
A SHUT
B SHUT
B-HALF
KEY A
KEY B
KEY C
ADJ 2
AVSS
SQ DATA IN
NO USE
SQ CLK
CD-FUNC
NC
NC
VSS
LED 20
SENSE2
COM D IN
COM D OUT
COM CLK
CD POWER
CD DATA
CD CLK
LED 19
LED 18
— 41 —
Pin No.
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
I/O
O
O
O
—
I/O
I/O
O
O
O
O
O
—
O
I
O
O
O
O
O
O
—
O
O
I
I
I
—
I
I
I
I
O
O
O
O
O
O
O
O
O
O
I/O
O
I
I
O
I
—
—
—
Description
LED control.
LED control.
LED control.
Not used.
Communciation data.
Comunicaton clock.
CD reset.
CD latch.
Focus switch.
Table-L.
Table-R.
Not used.
Load out.
Load in.
LED control.
LED control.
LED control.
LED control.
LED control.
LED control.
Ground.
LED control.
LED control.
BD status input.
Disc sensor.
Table sensor.
Not used.
Encoder input for CDM38.
Encoder input for CDM38.
Encoder input for CDM38.
Encoder input for CDM38.
Capstan motor H/N selection.
Mechanism timing output control.
Mechanism timing output control.
Mechanism timing output control.
Capstan motor ON/OFF switch.
Playback A/B selection.
Equalizer H/L selection.
Bias ON/OFF.
REC mute.
NR ON/OFF.
REC/PB/PASS select.
TC mute.
Mechanism PLAY switch.
Mechanism PLAY switch.
Head selection.
Cassette half detection.
Not used.
Not used.
Not used.
Pin Name
LED 17
LED 16
LED 15
IIC-TEMP
IIC DATA
IIC CLK
XRST
XLAT
FOCUS SW
TBL L
TBL R
TRAY LED
LOAD OUT
LOAD IN
LED 14
LED 13
LED 12
LED 11
LED 10
LED 9
Vss
LED 8
LED 7
SENS
DISC SENS
T-SENS
UPSW
ENC3
ENC2
ENC1
OUT OPEN
CAP M H/N
A TRG
B TRG
TRG LOW
CAP M ON/OFF
PB A/B
EQ H/N
BIAS
REC MUTE
NR ON/OFF
R/P PASS
LM-ON/OFF
A PLAY SW
B PLAY SW
TC RELAY
A HALF
POWER
NC
NC
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