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Kenwood VGS-1 Service Manual page 10

Voice guide & storage unit
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ACCESSORY UNIT (X42-3250-60) : VGS-1
DGND
CP4 47k
1
VCC1
BUSY
2
CS7/TMO0/TP8/PB0
PLAY
3
CS6/TMIO1/TP9/PB1
4
CS5/TMO2/TP10/PB2
5
CS4/TMIO3/TP11/PB3
AFM
6
TP12/PB4
7
TP13/PB5
8
TP14/PB6
9
TP15/PB7
FWE
10
RESo
11
VSS1
12
TXD0/P90
IC2
TXD1
13
TXD1/P91
14
D33024D10XWV
RXD0/P92
RXD1
15
MCU
RXD1/P93
16
IRQ4/SCK0/P94
SCK1
17
IRQ5/SCK1/P95
RV1
18
P40
RV2
19
P41
RV3
20
P42
21
RV4
P43
22
VSS2
23
P44
USEL
24
P45
SELF
25
P46
R92
0
3D
IC1
S-80930CNNB-G
DGND
1
4
RESET
VSS
oUT
2
3
VDD
CD
RESET
DGND
R24
3D
1k
RYBY
C7
100p
R27
R16
R23
3A
0
0
C8
10
1u
75
MD2
MD2
74
MD1
MD1
D10
73
MD0
MD0
D15
72
LWR/P66
/CS1
71
HWR/P65
70
RD/P64
69
AS/P63
3D
68
VCC3
67
XTAL
XTAL
66
EXTAL
A16
G4
EXTAL
A16
65
A15
G5
VSS5
A15
64
NMI
D11
G6
NMI
DQ3
63
A9
H1
RES
A9
62
/STBY
A10
H2
A10
STBY
61
A11
H3
A11
PHAI/P67
60
A12
H4
BACK/P62
A12
59
/BREQ
A13
H5
BREQ/P61
A13
58
/WAIT
A14
H6
WAIT/P60
A14
57
VSS4
56
A19
A19/P53
55
A18
A18/P52
54
A17
A17/P51
53
A16
A16/P50
52
A15
A15/P27
51
A14
A14/
P26
DGND
5C
3C
CP10 47k
ATT1
ATT2
ATT3
CP6
47k
ATT4
/BREQ
CP9 47k
/WAIT
CP8 47k
C51
DA0
NMI
1u
/STBY
AFM
CP7 47k
AN0
R12
EXTAL
100k
R53
R51
22k
22k
XTAL
X1
PA1
DGND
L77-1950-05
C10 3p
11.0592MHz
5C
D901, 902
REVERSE CURRENT
PREVENTION
Q1
D902
DTC114YE
1SS400
R901
4.7k
Q2
Q1
2SK1824-A
SW : 3V→5V
BEAT SHIFT SW
LEVEL SHIFTING
RYBY
3C
A0
D9
A17
D11
A18
D12
D14
D14
A4
A8
D6
VCC1
D1
VSS1
C6
D9
DQ1
A10
C4
A5
A5
A14
C3
IC3
NC2
A5
SRAM
C1
D13
DQ5
A18
B6
D8
DQ0
B5
A7
A7
B4
A4
A4
A9
A13
WE
DGND
RESET
R56
R58
22k
22k
R64
10k
IC51
IC53
TC75W51FUF
TC7W66FK-F
1
8
1 IN_oUT1
oUTA
VDD
VCC
7
2
2 oUT_IN1
IN-A
oUTB
CoNT1
3
6
3
CoNT2
IN+A
IN-B
R88
oUT_IN2
1M
4
5
4 GND
VSS
IN+B
IN_oUT2
LPF
ANALOG SW
Q51
2SK1824-A
AUDIO MUTE SW
REF
BUFFER &
R54
FILTER AMP
IC52
4.7k
TC75W51FUF
1
oUTA
VDD
2
IN-A
oUTB
3
IN+A
IN-B
4
VSS
IN+B
R28
0
A1
F6
A3
BYTE
A2
F5
A7
DQ14
A3
F4
RY/BY
DQ12
A4
F3
WE
DQ10
A5
F2
A9
DQ8
A6
F1
/CS2
A13
CE
IC5
B1
A17
E6
A4
A16
FLASH MEMORY
B2
E5
D15
A17
DQ7
3C
B3
E4
D13
WP/ACC
DQ5
B4
E3
D10
RESET
DQ2
B5
E2
D8
A8
DQ0
B6
E1
A1
A12
A0
RV1
RV2
RV3
RV4
DGND
5C
3C
L51
0163
BUSY
IC55
TC75S51FE(F)
TXD1
IC54
TC7W66FK-F
1
5
IN+
VDD
SCK1
8
1
8
2
IN_oUT1
VCC
VSS
USEL
C67
7
7
3
2
4
IN-
RESET
oUT_IN1
CoNT1
oUT
0.1u
6
3
6
EN
CoNT2
oUT_IN2
BUFFER
5
4
5
RXD1
GND
IN_oUT2
PLAY
ANALOG SW
REF
R75
10k
8
7
6
C62
5
AI
0.1u
CP51 4.7k
RV1(I)
RV2(I)
RV3(I)
RV4(O)
CP52 4.7k
(Ver CHECK)
IC56
XC6204B332M
4
3
NC
CE
2
VSS
5
1
5C
VOUT
VIN
3V REGULATOR
R79
10
C72
R78
L53
5C
470p
100
0163
C73
0.1u
BUS SW WITH
LEVEL SHIFTING
CN1
E40-6358-05
10
11
CP54 560
BUSY(O)
GND
2A1
SO(O)
9
12
2
1
2B1
1B4
8
13
CLK/WAIT(I)
4
3
1A4
2A2
7
14
USEL(I)
6
5
2B2
1B3
6
15
CP55 560
RST(I)
8
7
1A3
2A3
5
16
EN(I)
AGND
10
9
DGND
2B3
1B2
4
17
SI(I)
AI
12
11
AO
CP56 560
1A2
2A4
3
PLAY(O)
18
5C
14
13
AGND
2B4
1B1
2
19
16
15
2oE
CP57 560
1A1
1
20
18
17
1oE
VCC
20
19
IC57
22
21
TC7MBD3244AFK
24
23
L54
26
25
0419
DGND
AO
AI
BSFT

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