Sony MCE-K700, Service Manual

Page: 29 / 66

— 51 —
– MAIN, DISP SECTION –
IC104 CXD2721Q
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
T.S.D O.C.P
FWD/REV/STOP
CONTROL LOGIC
MOTOR
DRIVE
MOTOR
DRIVE
IC303 LB1641
IC301 L78LR05D-MA
IC302 M5290P-16
8
RST
9
GND
10
SW
11
REF
12
VCO
13
FB+
14
CO
15
EO
16
VC
7
DEL
6
BAL
5
VED
4
FB–
3
EO
2
CO
1
VE
DELAY
CIRCUIT
CURRENT
LIMITER
ON/OFF
CONTROL
VOLTAGE
REFERENCE
CURRENT
LIMITER
OVERHEAT
PROTECTION
XLT
1
TRDT 100
N.C
2
N.C
3
RVDT
4
N.C
5
AVD0
6
AVS0
7
XRST
8
X768
9
VSS
10
VDD1
11
VSS1
12
XWO
13
BFOT
CLOCK GENERATOR
/TIMING CIRCUIT
–
+
–
+
DIGITAL
SIGNAL
PROCESSOR
D/A
CONVERTER 1
D/A
CONVERTER 2
14
BSL2
15
BSL1
16
VSS2
17
VDD1
18
AVS3
19
LO3
21
AVD3
22
AVD2
23
AVS2
26
N.C
27
N.C
28
AOUT2
29
AVS5
30
AIN2
24
LO2
25
AIN3
20
128K BIT DELAY RAM
MICRO
COMPUTER
INTERFACE
SERIAL
DATA
INTERFACE
A/D
CONVERTER 1
A/D
CONVERTER 2
A/D
CONVERTER 3
READY 99
SCK 98
XMST 95
LRCK 94
BCK 93
SI 92
SO 91
XS24 90
VSS7 89
TST3 88
TST2 87
TST1 86
TST0 85
VDD5 84
VSS6 83
N.C 82
N.C 81 AVD1
50
LO1 49
N.C 48
AIN1 47
AVS1 46
AOUT1 45
N.C 44
AVS4 43
N.C 42
AVD4
41
AO1P 40
AO1N 39
VSS9 38
XTLI 37
XTLO 36
VDD7 35
AO2P 34
AO2N
33
AVD5 32
N.C 31
VDD6 97
VSS8 96
–
+
–
+
–
+
N.C
79
N.C
80
N.C
78
VDD4
77
VSS5
76
N.C
75
N.C
74
N.C
73
N.C
72
N.C
71
N.C
70
N.C
69
N.C
68
N.C
67
VDD3
66
VSS4
65
N.C
64
N.C
63
N.C
62
N.C
61
N.C
60
N.C
59
N.C
58
N.C
57
N.C
56
N.C
55
VSS3
54
VDD2
53
N.C
52
N.C
51
1
2
INPUT OUTPUT
Cd
5
RESET
OUT
4
GND 3
START
UP
Vref PROTECTOR
RESET
VO
DETECTOR
ERROR
AMP