Sony MDS-B5 Service Manual ▷ View online
— 100 —
5-14. IC BLOCK DIAGRAMS
IC11 M5293L
IC15 BA3960
IC16 SN74HCU04ANS
3
7
2
8
9
10
11
12
5
1
4
6
GND
NC
PRE GND
NC
MODE1
NF1
NF2
ACTIVE 2
VCC
ACTIVE 1
NC
MODE2
+
–
+
–
REF. VOLTAGE
14
13
12
11
10
9
8
1
2
3
4
5
6
7
VCC
GND
2
5
5k
+
–
27k
OVERCURRENT
LIMITTER
OVERHEAT
PROTECTION
REFERENCE
VOLTAGE
GND
ON/OFF
IN
REFERENCE
VOLTAGE
VOLTAGE
OUT
3
4
1
— 101 —
IC121 CXD2535CR
IC151 BH6511FS
SHCK
4
DFCT
3
FOK
2
TEOK
1
75
70
69 68 67 66 65
63 62 61 60
59
58
57
56 55
54
53 52 51
50 DVSS
DIPO
TEST2
MVC1
RAOF
EFMO
49
48
46
45
GFS
43
GTOP
42
RFCK
40
WDCK
39
DVDD
38
XBCK
37
MCLK
36
XTAI
35
XTAO
34
LRCK
33
BCK
32
C2PO
31
DTO
30
DTI
DIDT
28
DODT
27
DOVF
26
WFCK
41
XPLCK
44
74
73
72
71
AVSS
ADRB
ADRT
AVDD
BIA2
ADIO
VC
AUX
FE
ABCD
BOTM
PEAK
FILO
FILI
PCO
CLTV
AVSS
DVDD
DIFO
DIFI
DICV
RFI
BIAS
ASYI
ASYO
DVSS
25
REC
ADER
23
FMCK
22
DOUT
20
SBIOT
SBODT
18
SBOCK
XRST
DQSY
15
SQSY
14
ADSY
13
SENS
12
SRDT
11
XLAT
10
SCLK
9
SWDT
8
DIRC
7
WRPWR
SSTOP
DVSS 100
COUT 99
OFTRK 98
XDCL 97
DCLI 96
DCLO 95
SPFD 94
SPRD 93
SFDR 92
SRDR 91
FS4 90
FRDR 89
DVDD 88
FFDR 87
TFDR 86
TRDR 85
LDDR 84
TS25 83
ADFG
TEST1 81
APC 80
MID 79
TENV 78
TE 77
SE 76
DIN
ANALOG MUX
34 MHz
PLL
A/D
CONVERTER
OP AMP
SERVO DSP
PWM GENERATOR
DIGITAL
CLV
PROCESSOR
OFTRK/DFCT/
FOK/C OUT/
SHCK/TEOK
SHCK/TEOK
PROCESSOR
SERVO
CONTROL
CPU I/F
SENS
CONTROL
SERVO AUTO
SEOUENCER
APC COMP./
FILTER
APC PWM
GENERATOR
DIN PLL
(22 MHz)
COMP
ECC
ENCODER/
DECODER
REGISTER
32K RAM
REGISTER
AUDIO
DATA
CONTROL
EFM
MODULATOR
TIMING
GENERATOR
EFM
DIGITAL PLL
EFM SYNC
DETECTOR/
PROTECTOR
TIMING GENERATOR
DIGITAL
AUDIO
IN/OUT
PEAK
DETECT
64
47
EFM
DEMODULATOR
CLOCK
GENERATOR
29
24
21
19
SUBCODE
P~W
PROCESSOR
17
16
AD IP
DEMODULATOR
DEMODULATOR
AD IP
DECODER
6
5
82
TRACKING PWM
FOCUS PWM
SLED PWM
TRACKING SERVO
FOCUS SERVO
SLED SERVO
SUBCODE Q
READER/
GENERATOR
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
GND
VG
IN4R
IN4F
VM4
OUT4F
PGND4
OUT4R
VM34
OUT3R
PGND3
OUT3F
VM3
IN3F
IN3R
PSB
CAPA–
CAPA+
IN2R
IN2F
VM2
OUT2F
PGND2
OUT2R
VM12
OUT1R
PGND1
OUT1F
VM1
IN1F
IN1R
V
DD
CHARGE
PUMP.
OSC
INTERFACE
AMP
INTERFACE
AMP
AMP
INTERFACE
PREDRIVE
PREDRIVE
PREDRIVE
PREDRIVE
AMP
INTERFACE
AMP
AMP
AMP
V
DD
PSB
AMP
— 102 —
VIN
STB
GND
CN
VOUT
START VOLTAGE
REFERENCE
VOLTAGE
ERROR
AMP
AMP
OVERVOLTAGE
PROTECTOR
ON / OFF
CONTROL
CURRENT
LIMITTER
THERMAL
PROTECTOR
1
2
3
5
4
IC191, 507 L88MS05T-FA-TL
IC171 X24C08SC7000
8
VCC
7
TEST INPUT
6
SCL
5
SDA
1
NC
2
NC
3
NC
4
VSS
START
STOP
LOGIC
CONTROL
LOGIC
START CYCLE
H.V. GENERATION
TIMING
& CONTROL
E PROM
32 x 32
2
32
XDEC
INC
LOAD
5
R/W
PIN
2
8
D
OUT
CK
32
WORD
ADDRESS
COUNTER
COUNTER
YDEC
D
OUT
ACK
DATA REGISTER
— 103 —
IC201 CXA8027N-ELL2000
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
11
12
START
CONTROL
OVER
HEAT
PROTECT
DRIVER
TIMING
CONTROL
SOFT
SWITCHING
DRIVE
ROTOR
POSITION
DETECT
OUTPUT
DRIVE
BUFFER
EXOR
U
V
W
FG
STBY
SLP1
SLP2
IB
IB SET
IBS
Vcc
VS
W
ICOM
NC
V
ICOM
U
VS
U IN
V IN
W IN
COM
BRK
+
BRK
–
GND
STAT
IC304, 306 M66500FP
PF6
PF7
PF7
VCC
PE0
PE1
PE2
PE3
PE4
PE5
PE6
PE7
GND3
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PC1
PC0
PC4
PC5
PC6
PC7
D6
D7
D5
D4
D3
D2
D1
D0
A0
A1
A2
GND1
RESET
PB7
PA7
PA6
PA5
PA4
PA3
PA2
PA1
PA0
VCC
RD
WR
CS
PF5
PF4
PF3
PF2
PF1
PF0
GND2
PG3
PG2
PG1
PG0
PC3
PC2
PORT F
(8 BIT)
PORT G
(4 BIT)
PORT C
(HIGHT 4 BIT)
PORT B
(8 BIT)
PORT A
(8 BIT)
PORT C
(LOW 4 BIT)
DATA BUS
BUFFER
READ / WRITE
CONTROL
BLOCK
8
4
4
4
8
8
8
1
2
3
4
5
6
7
8
9
10
11
13
12
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
51
52
53
54
55
56
57
58
59
60
61
62
63
64
PORT E
(8 BIT)
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