Technics ST-GT1000, Service Manual

Page: 27 / 64

IC501
MN1021617BA
SYSTEM CONTROL
D.GND
JOGPTY
A
KEY2
To OPERATION CIRCUIT(W402)
on SCHEMATIC DIAGRAM 9
D
JOGFREB JOGFREA JOGSERB JOGSERA JOGPROB JOGPROA JOGPTYB
To OPERATION CIRCUIT(W403)
on SCHEMATIC DIAGRAM 9
D
To OPERATION CIRCUIT(W407)
on SCHEMATIC DIAGRAM 9
D
REMCON
FL
TCE
FL
TDA
T
FL
TCLK
FL
TNRST
LEDDA
T
LEDCLK
KEY1
D.GND
A.GND
To OPERATION CIRCUIT(W406)
on SCHEMATIC DIAGRAM 9
D
1
7 3 2 4 5 6 2 3
1
3 2
1
4 3 2 4 5
1
6
CN402 CN403 CN406 CN407
R526
100
R527
100
R504
100
R505
100
B C D E A B A
R512
1K
R537 3.3K
E
F
D
C
76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96
97
98
99
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
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32 31 30 29 28 27 26
75 74 73 72
53
71 70 69 68 67 66 65
64
63
62
61
60
59
58
57
56
55
54
52
51
100
P21
P22
P23
P24
P30
PD7
P27
PD6
P25
P26
P31
P32
P33
P34
P35
V
DD
PC4
A16
A17
A18
A19
A20
A21
P47 P00 P01 P02 P03 V
DD
Vss P04 P05 P06 P07 P10 P1
1
PD0 PD1 P13 P14 P15 P16
P17
MODE0 MODE1
MODE2
P57
PC5
/RST
PC0
P76
P60
P61
P62
P63
P64
P65
P66
P67
P70
P71
PD2
V
DD
P77
P72
P73
P74
P75
PA0
PA1
PA2
PA3
PA4
PA5
PB0
PB1
PB2
PB3 PB4 PB5
V
DD
Vss
VREFL
P80
P81
P82 P83 P84 P85 P86 P87
PD4 PD5
P90
A14
A15
A
Vss
PD3
P46
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
P91 P92 P93
VREFH
AV
DD
P95 P96
P97 PC6 PC7
P50 P51 P52 P94
PC3 PC2 PC1 V
DD
OSC1 OSC0 Vss
P12
P53
V
DD
P20
P56
P55
P54
Vss
A
B
C
D
F
G
H
A
B
C
D
E
F
G
H
I
E
F
A
B
C
D
A B C D E F G H I H G F E D C B A
A B C D E F G H A B C D E F G H
Q
O
N
M
L
K
J
I
H
G
F
E
D
C
A
B
A B
C501
0.1
E501
R536
100
R518 10K
C529
0.1
R516
1K
C530 0.1
R519 10K
R534
15K
R524
10K
R522 0
R521 0
R520 0
R525
47
RJ101
0
C527
0.1
P
R506
10K
R535
220
X501
(19.66MHz)
R515
1K
C514
6.3V100
R517
1K
R513
1K
R510
1K
R509 1K
R508 1K
MAIN CIRCUIT
B
SCHEMATIC DIAGRAM 3
C526
0.1
L501
10
H
C517
6.3V100
C510
0.1
3
1
2
C515
0.1
C513
0.1
TP501
TP511
TP512
TP515
TP514
C516
0.1
:POSITIVE VOLTAGE LINE
0V
3.3V
3.3V
(3.3V)
3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 0V 0V 0V 0V 0V
(0V)
3.3V 3.3V 0V 0V 0V 3.3V 3.3V 3.3V
3.3V
2.3V
0.1V
3.3V
3.3V
3.3V
3.3V
0V
0V
0V
3.3V
0V
3.3V
0V
3.3V (3.3V)
3.3V
0V
0V (0V)
3.3V (3.3V) 0V
3.3V
0V
2.5V
3.3V
3.3V
3.3V
(3.3V) 0V
0.4V (0.4V) 1V
1.8V 1.5V 3.3V
0V
0V 0V
3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V
3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V
1V
(3.3V) (3.3V) (3.3V) (3.3V)
1V 1V 1V 1V 1V 1V 1V
(3.3V) (3.3V) (3.3V) (3.3V)
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
0V
0V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
(3.3V)
(3.3V)
(3.3V)
(3.3V)
(3.3V)
(0V)
0V
0V
0V
0V
0V
3.3V
3.3V
2.3V
P P
F=19.66MHz
DAB
0V
3.3V
T 24ms.
3.3V
0V
T 24ms.
3.3V
0V
DAB
0.8V
P P
F=19.66MHz
0V
DAB
3.3V
T 24ms.
T 0.4 s.