Kenwood VGS-1, Service Manual

Page: 9 / 10

SCHEMATIC DIAGRAM
VGS-1
9
7
6
5
4
3
2
1
E D C B A
XT
AL
EXT
AL
PA1
DA0
AN0
A20
A19 A18 A17 A16 A15 A14
D8
D9
D10
D11
D12
D13
D14
D15
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
/CS1
/CS2
/CS3
MD2 MD1 MD0
A16
A13
A7
A4
A12
A9
A8
A17
A1
A15 A11 A18
A5 A2
A14 A10 A19
A6
A3
A8
A9
A12
A4
A7
A20
A13
A16
A3
A15 A11 A18
A5 A2
A14 A10
A19
A6 A1
A17
D8 D10 D11 D12 D13
D14
D9
D15
D8 D12 D15 D10 D13
D9
D14
D11
EN USEL
MD0
A0
/CS1
/CS1
/CS3
/CS2
MD1
MD2
SCK1 PLA
Y
FWE
XT
AL
ATT3
ATT2
ATT1
PLA
Y
TXD1 BUSY
EN
FWE
RESET
DA0
A20
A0
RV
2
RV
3
RV
4
USEL RV
1
BUSY
RXD1 RV
4
RV
3
RV
2
RV
1
TXD1 RXD1
ATT4
RESET
SCK1
/STBY /BREQ
/W
AIT
NMI
/BREQ
/W
AIT
NMI
/STBY
A
TT3
A
TT2
A
TT4
A
TT1
AFM
AFM
3CI5
PA
1
EXT
AL
AN0
C67 0.1u
R71
22k
R67
1.8k
R66
5.6k
1 2 3 4
5 6 7 8
IC53
TC7W66FK
IC54
TC7W66FK
1
IN_oUT1
2
oUT_IN1
3
CoNT2
4
GND
5
IN_oUT2
6
oUT_IN2
7
CoNT1
8
VCC
IN_oUT1 oUT_IN1 CoNT2 GND
IN_oUT2 oUT_IN2
CoNT1
VCC
R52
22k
R51 22k
R53 22k
C53
1000p
C52
8200p
R59
39k
R62
1.5k
C62 0.1u
R54 4.7k
C12
15p
C11
15p
C9
1000p
IC2
HD6433024D01TE
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
P40
19
P41
20
P42
21
P43
22
22
23
P44
24
P45
25
P46
26
P47
27
27
28
28
29
29
30
30
31
31
32
32
33
33
34
34
35
35
36
36
37
37
38
38
39
39
40
40
41
41
42
42
43
43
44
44
45
45
46
46
47
47
48
48
49
49
50
50
51
51
52
52
53
53
54
54
55
55
56
56
57
57
58
58
59
59
60
60
61
61
62
62
63
63
64
64
65
65
66
66
67
67
68
68
69
69
70
70
71
71
72
72
73
73
74
74
75
75
76
76
77
77
78
78
79
79
80
80
81
81
82
82
83
83
84
84
85
85
86
86
87
IRQ0
88
88
89
89
90
90
91
91
92
92
93
93
94
94
95
95
96
96
97
PA4
98
PA5
99
PA6
100
100
IC3
MB84VD21091KW2
1
NC1
2
A7
3
LBS
4
WP/ACC
5
WE
6
A8
7
A11
8
A3
9
A6
10
UBS
11
RESET
12
CE2S
13
A19
14
A12
15
A15
16
A2
17
A5
18
A18
19
R
Y/BY
20
NC2
21
A9
22
A13
23
NC3
24
NC4
25
A1
26
A4
27
A17
28
A10
29
A14
30
NC5
31
NC6
32
NC7
33
A0
34
VSS1
35
DQ1
36
DQ6
37
SA
38
A16
39
NC8
40
CEF
41
OE
42
DQ9
43
DQ3
44
DQ4
45
DQ13
46
DQ15/A-1
47
CIOF
48
CE1S
49
DQ0
50
DQ10
51
VCCF
52
VCCS
53
DQ12
54
DQ7
55
VSS2
56
DQ8
57
DQ2
58
DQ11
59
CIOS
60
DQ5
61
DQ14
IC5
MB84VD21091KW2
1
NC1
2
A7
3
LBS
4
WP/ACC
5
WE
6
A8
7
A11
8
A3
9
A6
10
UBS
11
RESET
12
CE2S
13
A19
14
A12
15
A15
16
A2
17
A5
18
A18
19
R
Y/BY
20
NC2
21
A9
22
A13
23
NC3
24
NC4
25
A1
26
A4
27
A17
28
A10
29
A14
30
NC5
31
NC6
32
NC7
33
A0
34
VSS1
35
DQ1
36
DQ6
37
SA
38
A16
39
NC8
40
CEF
41
OE
42
DQ9
43
DQ3
44
DQ4
45
DQ13
46
DQ15/A-1
47
CIOF
48
CE1S
49
DQ0
50
DQ10
51
VCCF
52
VCCS
53
DQ12
54
DQ7
55
VSS2
56
DQ8
57
DQ2
58
DQ11
59
CIOS
60
DQ5
61
DQ14
R12
100k
C8 1u
R16
10
R8
0
R6
100k
C6
0.1u
C68
0.01u
C69
10u 6.3
R76
100
R60
47k
R72
12k
L51
0163
L52
0163
C1 1u
R13 47k
R14
220k
R25
0
R56
22k
R57
22k
R58
22k
C54
8200p
C56
1000p
IC1
S-80930CNNBG80 1
VSS
2
VDD
4
oUT
3
CD
C4 0.1u
IC52
TC75W51FU
1 2 3 4
5 6 7 8
R69
47k
C55
0.1u
R61
1.2k
C57
680p
R63
47k
IC51
TC75W51FU
1
OUT
-A
2
IN(-)-A
3
IN(+)-A
4
VSS
5
IN(+)-B
6
IN(-)-B
7
OUT
-B
8
VDD
OUT
-A
IN(-)-A IN(+)-A VSS
IN(+)-B
IN(-)-B OUT
-B
VDD
R55
47k
IC55
TC75S51FE
1 2
GND
3
-
4
OUT
5
VDD
C65
0.01u
R75
10k
C63
10u 6.3
0772
CP4 47k
CP5 47k
IC4
TC7S04FU
1
NC
2
IN
3
GND
4
OUT
5
VCC
C74 1u
C71
1u
R2
R1
10k
CP51 4.7k CP52 4.7k
220k
R5 220k
R4 0 R3
4.7k
C73 0.1u
R78 100
C83
470p
C82 470p
C80 470p
C76 1000p
C77 1000p
C78 470p
C84
1000p
C85
1000p
L53
0163
C66 100p
C15
0.1u
C13
0.1u
C64
100p
C70
470p
C3
470p
C7
100p
C14
470p
C16
470p
C72
470p
C60
0.01u
C61
100p
C58
0.01u
C59
100p
R74
10k
CP3 10k
R87
470k
R27
0
R28
0
R23
0
CN1
E40-6358-05
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
CP9 47k
CP10 47k
IC57
TC7MBD3244AFK
1
1oE
2
1A1
3
2B4
4
1A2
5
2B3
6
1A3
7
2B2
8
1A4
9
2B1
10
GND
11
2A1
12
1B4
13
2A2
14
1B3
15
2A3
16
1B2
17
2A4
18
1B1
19
2oE
20
VCC
C86
0.33u 16
0634
Q51
2SK1824
C87
0.1u
R88
1.0M
R89
10k
C2
100p
C5
0.01u
R64 10k
C75
100p
C88
0.01u
CP8 47k
R24
1k
IC56
XC6204B332M
1
VIN
2
VSS
3
CE
4
NC
5
VOUT
R77
0
CP54
560
CP55 560 CP56 560
CP57
560
C10
3p
CP6
CP7 47k
47k
C89
1000p
Q2
2SK1824
R17
4.7k
R19
10k
X1
L77-1950-05
11.0592
MHz
C90
4700p
C51
1u
R91
220k
R92
0
R18
0
Q1
DTC114YE
AI AO
AG
5C
SI(I) EN(I) SO(O)
CLK(I)
RESET(I)
BUSY(O)
PLA
Y(O)
DG
R
V1(I)
R
V2(I)
R
V3(I)
3C
3D
3A
3C
3C
3D
R
V4(O)
3C
DGND
DGND
DGND
DGND
REF
REF
AI
DGND
DGND
DGND
RESET
RESET
WE
3C
3D
SELF
USEL(I)
5C
DG
AO
AI
5C
3C
AG
(V
er CHECK)
5C
5C
5C
+