Kenwood VGS-1 User manual

SERVICE MANUAL
© 2009-5 PRINTED IN JAPAN
B51-8873-00 (N)PDF
SUPPLEMENT
VGS-1
VOICE GUIDE & STORAGE UNIT
This service manual has been revised due to the modification of the
PC board and issues it as a supplemental manual.
Refer to the VGS-1 service manual (B51-8669-00) for any informa-
tion which has not been covered in this VGS-1 service manual.
CONTENTS
DISASSEMBLY FOR REPAIR .................................................................... 2
CIRCUIT DESCRIPTION ............................................................................ 2
COMPONENTS DESCRIPTION................................................................. 3
PARTS LIST ............................................................................................... 3
PC BOARD
ACCESSORY UNIT (X42-3250-60)........................................................ 5
SCHEMATIC DIAGRAM ............................................................................ 6
TERMINAL FUNCTION ........................................................ BACK COVER
This product uses Lead Free solder.
This product complies with the RoHS directive for the European market.

VGS-1
2
Document Copyrights
Copyright 2009 by Kenwood Corporation. All rights re-
served.
No part of this manual may be reproduced, translated,
distributed, or transmitted in any form or by any means,
electronic, mechanical, photocopying, recording, or other-
wise, for any purpose without the prior written permission
of Kenwood.
Disclaimer
While every precaution has been taken in the preparation
of this manual, Kenwood assumes no responsibility for er-
rors or omissions. Neither is any liability assumed for dam-
ages resulting from the use of the information contained
herein. Kenwood reserves the right to make changes to any
products herein at any time for improvement purposes.
CIRCUIT DESCRIPTION
DISASSEMBLY FOR REPAIR
Beat Shift Circuit
To prevent VGS-1 clock oscillation for the MCU (IC2)
from causing spurious reception to transceivers to which
VGS-1 is connected, the clock oscillator (11.0592MHz) has a
beat shift circuit with a transistor switch (Q1).
■Beat Shift Circuit Off by MCU
When pin 94 of the MCU (IC2) goes Low level, Q2 turns
off and Q1 turns on because a 5V bias is applied to its base.
In this condition, C10 is shorted, so the oscillation frequency
is unchanged.
■Beat Shift Circuit On by MCU
When pin 94 of the MCU goes High level, Q2 turns on
and Q1 turns off because its base is pulled down to GND.
In this condition, C10 is connected in series to the crystal
oscillator and the oscillation frequency increases by approx.
150ppm.
■Beat Shift Circuit On/Off with External Device
When pin 94 of the MCU is in the Low level state, the
beat shift circuit turns on by designating pin 17 of the con-
How to Distinguish Between the Old and
New VGS-1
You can distinguish between the old and new VGS-1 as
described below.
■VGS-1 (Old product)
The silk of the LF mark on the
old product is not printed
on the PC board.
nected CN1 connector of the external device as High level,
and the oscillation frequency increases by approx. 150ppm.
(Q2 becomes the OR circuit.)
C10
X1
Q1
Q2
R19
R18
R903
C11 C12
R17D901
5V
IC2 pin 94
PA1
CN1 pin 17
BSFT
High : Normal
Low : Shift
6667
XTAL EXTAL
IC2
MCU
R901D902
Fig. 1 Beat shift circuit
■VGS-1 (New product)
The silk of the LF mark on the
new product is printed
on the PC board.
Precautions When Repairing the VGS-1
• When you repair VGS-1 used by Amateur transceivers,
install it in the Amateur transceiver if it is necessary to
install the VGS-1 in the transceiver.
• When you repair VGS-1 used by Land mobile transceiv-
ers, install it in the Land mobile transceiver if it is neces-
sary to install the VGS-1 in the transceiver.

VGS-1
3
Ref. No. Address Parts No. Description Desti-
nation
New
parts
Ref. No. Address Parts No. Description Desti-
nation
New
parts
L: Scandinavia K: USA P: Canada
Y: PX (Far East, Hawaii) T: England E: Europe
Y: AAFES (Europe) X: Australia M: Other Areas
✽New Parts. indicates safety critical components.
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. ne sont pas fournis.
Teile ohne Parts No. werden nicht geliefert.
PARTS LIST
VGS-1 (Y60-4010-60)
ACCESSORY UNIT (X42-3250-60)
COMPONENTS DESCRIPTION
Accessory Unit (X42-3250-60)
Ref.No. Use / Fnction Opration / Condition
Q1 SW : 3V→5V Level Shifting When the beat shift is operating : ON
Q2 Beat Shift Switch When the beat shift is operating : OFF
Q51 Audio Mute Switch When a playback output is completed : ON
IC1 Reset For MCU (IC2) and Flash memory (IC5)
IC2 MCU
IC3 SRAM Buffer, Firmware record
IC5 Flash memory Data record
IC51 Low Pass Filter LPF for a playback output
IC52 Buffer + Filter AMP For recording input signals
IC53 Analog Switch Attenuator Control
IC54 Analog Switch Attenuator Control
IC55 Buffer Buffer for a playback output
IC56 3V Regulator 3V Power Supply
IC57 Bus Switch with Level Shifting 3V↔5V Level Shifting & 3V↔3V Bus Switch
✽B62-1741-30 INSTRUCTION MANUAL
F10-2492-04 SHIELDING COVER
✽G02-1846-03 FLAT SPRING
✽G02-1853-03 FLAT SPRING
G13-1974-04 CUSHION (21X21X1.0)
G13-1992-04 CUSHION (21X21X2.5)
G13-1993-04 CUSHION (21X21X2.0)
G13-1994-04 CUSHION (20X30X12)
G13-1995-04 CUSHION (20X30X1.0)
✽J30-1292-04 SPACER
C1 CK73GB1A105K CHIP C 1.0UF K
C2 CC73HCH1H101J CHIP C 100PF J
C3 CK73HB1H471K CHIP C 470PF K
C4 CK73HB1A104K CHIP C 0.10UF K
C5 CK73HB1E103K CHIP C 0.010UF K
C6 CK73HB1A333K CHIP C 0.033UF K
C7 CC73HCH1H101J CHIP C 100PF J
C8 CK73GB1A105K CHIP C 1.0UF K
C9 CK73HB1H102K CHIP C 1000PF K
C10 CC73HCH1H030B CHIP C 3.0PF B
C11,12 CC73HCH1H150J CHIP C 15PF J
C13 CK73HB1A104K CHIP C 0.10UF K
VGS-1 ACCESSORY UNIT (X42-3250-60)

VGS-1
4
Ref. No. Address Parts No. Description Desti-
nation
New
parts
PARTS LIST
Ref. No. Address Parts No. Description Desti-
nation
New
parts
ACCESSORY UNIT (X42-3250-60)
C14 CK73HB1H471K CHIP C 470PF K
C15 CK73HB1A104K CHIP C 0.10UF K
C16 CK73HB1H471K CHIP C 470PF K
C51 CK73GB1A105K CHIP C 1.0UF K
C52 CK73HB1C822K CHIP C 8200PF K
C53 CK73HB1H102K CHIP C 1000PF K
C54 CK73HB1C822K CHIP C 8200PF K
C55 CK73HB1A104K CHIP C 0.10UF K
C56 CK73HB1H102K CHIP C 1000PF K
C57 CK73HB1H681K CHIP C 680PF K
C58 CK73HB1E103K CHIP C 0.010UF K
C59 CC73HCH1H101J CHIP C 100PF J
C60 CK73HB1E103K CHIP C 0.010UF K
C61 CC73HCH1H101J CHIP C 100PF J
C62 CK73HB1A104K CHIP C 0.10UF K
C63 C92-0888-05 CHIP TNTL 10UF 6.3WV
C64 CC73HCH1H101J CHIP C 100PF J
C65 CK73HB1E103K CHIP C 0.010UF K
C66 CC73HCH1H101J CHIP C 100PF J
C67 CK73HB1A104K CHIP C 0.10UF K
C68 CK73HB1E103K CHIP C 0.010UF K
C69 C92-0888-05 CHIP TNTL 10UF 6.3WV
C70 CK73HB1H471K CHIP C 470PF K
C71 CK73GB1A105K CHIP C 1.0UF K
C72 CK73HB1H471K CHIP C 470PF K
C73 CK73HB1A104K CHIP C 0.10UF K
C74 CK73GB0J475K CHIP C 4.7UF K
C75 CC73HCH1H101J CHIP C 100PF J
C76,77 CK73HB1H102K CHIP C 1000PF K
C78 CC73HCH1H101J CHIP C 100PF J
C79 CK73GB0J475K CHIP C 4.7UF K
C80 CC73HCH1H101J CHIP C 100PF J
C82,83 CC73HCH1H101J CHIP C 100PF J
C84,85 CK73HB1H102K CHIP C 1000PF K
C86 C92-0634-05 CHIP TNTL 0.33UF 16WV
C87 CK73HB1A104K CHIP C 0.10UF K
C88 CK73HB1E103K CHIP C 0.010UF K
C89 CK73HB1H102K CHIP C 1000PF K
C90 CK73HB1H472K CHIP C 4700PF K
C92-94 CK73GB0J475K CHIP C 4.7UF K
CN1 E40-6358-05 SOCKET FOR PIN ASSY
L51-53 L92-0163-05 BEADS CORE
L54 L92-0419-15 CHIP FERRITE
X1 L77-1950-05 CRYSTAL RESONATOR (11.0592MHZ)
CP3 ✽RK74HA1J103J CHIP-COM 10K J 1/16W
CP4 ✽RK74HA1J473J CHIP-COM 47K J 1/16W
CP6-10 ✽RK74HA1J473J CHIP-COM 47K J 1/16W
CP51,52 ✽RK74HA1J472J CHIP-COM 4.7K J 1/16W
CP54-57 ✽RK74HA1J561J CHIP-COM 560 J 1/16W
R1 RK73HB1J224J CHIP R 220K J 1/16W
R2 RK73HB1J103J CHIP R 10K J 1/16W
R3 RK73HB1J472J CHIP R 4.7K J 1/16W
R4 RK73HB1J000J CHIP R 0.0 J 1/16W
R5 RK73HB1J224J CHIP R 220K J 1/16W
R6 RK73HB1J104J CHIP R 100K J 1/16W
R8 RK73HB1J000J CHIP R 0.0 J 1/16W
R12 RK73HB1J104J CHIP R 100K J 1/16W
R13 RK73HB1J473J CHIP R 47K J 1/16W
R14 RK73HB1J224J CHIP R 220K J 1/16W
R16 RK73HB1J100J CHIP R 10 J 1/16W
R17 RK73HB1J472J CHIP R 4.7K J 1/16W
R18 RK73HB1J000J CHIP R 0.0 J 1/16W
R19 RK73HB1J103J CHIP R 10K J 1/16W
R23 RK73HB1J000J CHIP R 0.0 J 1/16W
R24 RK73HB1J102J CHIP R 1.0K J 1/16W
R25 RK73HB1J000J CHIP R 0.0 J 1/16W
R27,28 RK73HB1J000J CHIP R 0.0 J 1/16W
R51-53 RK73HB1J223J CHIP R 22K J 1/16W
R54 RK73HB1J472J CHIP R 4.7K J 1/16W
R55 RK73HB1J473J CHIP R 47K J 1/16W
R56-58 RK73HB1J223J CHIP R 22K J 1/16W
R59 RK73HB1J393J CHIP R 39K J 1/16W
R60 RK73HB1J473J CHIP R 47K J 1/16W
R61 RK73HB1J122J CHIP R 1.2K J 1/16W
R62 RK73HB1J152J CHIP R 1.5K J 1/16W
R63 RK73HB1J473J CHIP R 47K J 1/16W
R64 RK73HB1J103J CHIP R 10K J 1/16W
R66 RK73HB1J562J CHIP R 5.6K J 1/16W
R67 RK73HB1J182J CHIP R 1.8K J 1/16W
R69 RK73HB1J473J CHIP R 47K J 1/16W
R71 RK73HB1J223J CHIP R 22K J 1/16W
R72 RK73HB1J123J CHIP R 12K J 1/16W
R74,75 RK73HB1J103J CHIP R 10K J 1/16W
R76 RK73HB1J101J CHIP R 100 J 1/16W
R78 RK73HB1J101J CHIP R 100 J 1/16W
R79 RK73HB1J100J CHIP R 10 J 1/16W
R87 RK73HB1J474J CHIP R 470K J 1/16W
R88 RK73HB1J105J CHIP R 1.0M J 1/16W
R89 RK73HB1J103J CHIP R 10K J 1/16W
R91 RK73HB1J224J CHIP R 220K J 1/16W
R92 RK73HB1J000J CHIP R 0.0 J 1/16W
R901 RK73HB1J472J CHIP R 4.7K J 1/16W
R902,903 RK73HB1J224J CHIP R 220K J 1/16W
D901,902 1SS400 DIODE
IC1 S-80930CNNB-G MOS-IC
IC2
✽D33024D10XWV MICROCONTROLLER IC
IC3 Note 1 SRAM IC
IC5 Note 1 ROM IC
IC51,52 TC75W51FUF MOS-IC
IC53,54 TC7W66FK-F MOS-IC
IC55 TC75S51FE(F) MOS-IC
IC56 XC6204B332M MOS-IC
IC57 TC7MBD3244AFK MOS-IC
Q1
✽DTC114YEB DIGITAL TRANSISTOR
Q2 2SK1824-A FET
Q51 2SK1824-A FET
-
✽X42-3250-61 SERVICE ACCESSORY UNIT
Note 1: This part cannot be replaced. Therefore, this part is not supplied as a service part.

5
ABCDE FGH I J
1
2
3
4
5
6
7
8
9
10
11
12
13
14
IC2
IC3
J79-0227-09
J79-0227-09
IC5
R17
R24
125
26
50
51 75
76
100
R25
Q1
X1
C11
CP6 CP8CP7
C51
C52
C54
C55
C56 C58
C59
IC52
IC53
45
18
4
3
32
41
4
15
5
18
IC54
IC56
C60
C62
C63
+
+
+
C67
C72
C73
C76
C78
C86
C87
C92
C94
R902
CP51
IC1
CP52
CP56
Q2
D
S
G
D
S
G
L51
L53
L54
R4
R51
R53
R55
R57
R61 R62
R63
R66
R69
R71 R72
R75
R78
R79
10 11
120
D902
CP3
C15
C16
R76
C85 C1
C2 C5
C7
C8
C9
CP10
R12
R13
R14 R16
R18
L52
R3
R8
D901
CP4
C10
C12
CP9
C53
C57 C61
C64 C65
C66 C68
C70
C71
C74
C75
C77
C79
C80
C82
C83
C84
C88
C89
C93
C3 C4
C6
Q51
R901
R903
CP54CP55
CP57
R19
R23 R27
R28
R1 R2
R5
R6
R52
R54
R56
R58
R59
R60
R74
R87
R88
R89
R91
R92
C13 C14
R64 R67
IC51
45 18
45
18
IC55
34 15
C90
CN1
IC57
C69
RV1RV2RV3RV4
12
25 26
BUSY
SO
CLK/WAIT
USEL
DGND
AO
AGND
NC
BSFT
NC
NC
NC
NC
PLAY
SI
EN
RST
AGND
AI
5C
NC
NC
NC
NC
NC
NC
ACCESSORY UNIT (X42-3250-60) Component side view (J79-0227-09)
ACCESSORY UNIT (X42-3250-60) Foil side view (J79-0227-09)
Ref. No. Address
IC1 12C
IC51 9E
IC52 9F
IC53 10D
IC54 11E
IC55 11F
IC56 11E
IC57 12F
Q2 9D
Q51 10F
D902 10C
Ref. No. Address
IC2 4F
IC3 3C
IC5 5C
Q1 7E
D901 6G
PC BOARD VGS-1
Component side
Foil side
Layer 1
Layer 2
Layer 3
Layer 4
Layer 5
Layer 6
Component side
Foil side
Layer 1
Layer 2
Layer 3
Layer 4
Layer 5
Layer 6

6
VGS-1 SCHEMATIC DIAGRAM
X42-325 1/2
7
6
5
4
3
2
1
ABCDE
XTAL
EXTAL
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
MD2
MD1
MD0
MD0 MD1 MD2
FWE
XTAL
ATT3 ATT2 ATT1
PLAY
EN
FWE
DA0
RV2
RV3
RV4
USEL
RV1
BUSY
TXD1
RXD1
ATT4
SCK1
/STBY
/BREQ
/WAIT
NMI
/BREQ
/WAIT
NMI
/STBY
ATT3
ATT2
ATT4
ATT1
A21
AFM
EXTAL
AN0
PA1
D10
D15
/CS1
A16
A15
D11
A9
A10
A11
A12
A13
A14
A0 A1 A3 A6 A8 D12 A2
RESET
AFM
R52
22k
R51
22k
R53
22k
C53
1000p
C52
8200p
R59
39k
R62 1.5k
R54
4.7k
C12
15p
C11
15p
C9
1000p
IC2
MCU
D33024D10XWV
1VCC1
2CS7/TMO0/TP8/PB0
3CS6/TMIO1/TP9/PB1
4CS5/TMO2/TP10/PB2
5CS4/TMIO3/TP11/PB3
6TP12/PB4
7TP13/PB5
8TP14/PB6
9TP15/PB7
10 RESo
11 VSS1
12 TXD0/P90
13 TXD1/P91
14 RXD0/P92
15 RXD1/P93
16 IRQ4/SCK0/P94
17 IRQ5/SCK1/P95
18 P40
19 P41
20 P42
21 P43
22 VSS2
23 P44
24 P45
25 P46
26 P47 27 D8/P30 28 D9/P31
29 D10/P32
30 D11/P33 31 D12/P34
32 D13/P35
33 D14/P36 34 D15/P37 35 VCC2 36 A0/P10 37 A1/P11 38 A2/P12 39 A3/P13 40 A4/P14 41 A5/P15 42 A6/P16 43 A7/P17 44 VSS3 45 A8/P20 46 A9/P21 47 A10/P22 48 A11/P23 49 A12/P24 50 A13/P25
51
A14/
P26
52
A15/P27
53
A16/P50
54
A17/P51
55
A18/P52
56
A19/P53
57
VSS4
58
WAIT/P60
59
BREQ/P61
60
BACK/P62
61
PHAI/P67
62
STBY
63
RES
64
NMI
65
VSS5
66
EXTAL
67
XTAL
68
VCC3
69
AS/P63
70
RD/P64
71
HWR/P65
72
LWR/P66
73
MD0
74
MD1
75
MD2
76
AVCC
77
VREF
78
AN0/P70
79
AN1/P71
80
AN2/P72
81
AN3/P73
82
AN4/P74
83
AN5/P75
84
DA0/AN6/P76
85
DA1/AN7/P77
86
AVSS
87
IRQ0
88
CS3/IRQ1/P81
89
CS2/IRQ2/P82
90
ADTRG/CS1/IRQ3/P83
91
CS0/P84
92
VSS6
93
TCLKA/TP0/PA0
94
TCLKB/TP1/PA1
95
TCLKC/TIOCA0/TP2/PA2
96
TCLKD/TIOCB0/TP3/PA3
97
PA4
98
PA5
99
PA6
100
A20/TIOCB2/ TP7/PA7
R12
100k
C8
1u
R16
10
R8 0
R6
100k
C6
0.033u
R60 47k
C1 1u
R13 47k
R14
220k
R25
0
R56
22k
R57
22k
R58
22k
C54
8200p
C56
1000p
IC1
S-80930CNNB-G
1VSS
2VDD
4
oUT
3
CD
C4 0.1u
C55
0.1u
R61
1.2k
C57
680p
R63
47k
IC51
TC75W51FUF
1oUTA
2IN-A
3IN+A
4VSS 5
IN+B
6
IN-B
7
oUTB
8
VDD
R55
47k
CP4 47k
R2 10k
R1 220k
R5 220k
R4 0R3
4.7k
C13 0.1u
C3 470p
C7
100p
C14 470p
CP3 10k
R27
0
R23
0
CP9 47k
CP10 47k
C86
0.33u 16
2SK1824-A
Q51
C87
0.1u
R88
1M
R89
10k
C2 C5
100p
0.01u
R64
10k
CP8 47k
R24
1k
C10 3p
CP6
47k
CP7 47k
C89
1000p
2SK1824-A
Q2
R17
4.7k
R19
10k
X1
L77-1950-05
11.0592MHz
C90
4700p
C51
1u
R91
220k
R92
0
R18
0
Q1
Q1
DTC114YE
C94 4.7u
C93 4.7u
R901
4.7k
D901
1SS400
D902
D901, 902
1SS400
R902
220k
IC3
A1 A0 A2 A1 A3 NC1 A4 A3 A5 A6 A6 A8 B1 DQ4 B2 A2 B3 WE
B4
A4
B5
A7
B6
DQ0
C1
DQ5
C3
NC2
C4
A5
C6
DQ1
G2
oE
G3
CE
E1
VCC2
E6
VSS2
F1
DQ6
F3
A18
F4
A17
F6
DQ2
G1
DQ7
H3 A11
H4 A12
G4 A16
G5 A15
G6 DQ3
H1 A9
H2 A10
D1
VSS1
D6
VCC1
H5 A13
H6 A14
R903
220k
3D
3A
3D
3C
DGND DGND
DGND
DGND
ACCESSORY UNIT (X42-3250-60) : VGS-1
REF
DGND
RESET
3D
SELF
5C
5C
RYBY
SRAM
RESET
REVERSE CURRENT
PREVENTION
SW : 3V→5V
LEVEL SHIFTING
BEAT SHIFT SW
LPF
AUDIO MUTE SW

Note : The components marked with a dot (•) are parts of layer 1.
7
SCHEMATIC DIAGRAM VGS-1
X42-325 2/2
7
6
5
4
3
2
1
JIHGF
A20
D14
D12
D11
EN
USEL
A0
SCK1
PLAY
TXD1
BUSY
RESET
RXD1
RV4
RV3
RV2
RV1
A18
A17
A4
A7
D8
D13
A5
D9
A4
A8
A10
A14
A5
A18
A9
A13
A3 A7 A19 A11 A15 A2 A6 A21 A12 A16
A1
D8
D10
D13
D15
A17
/CS2
D9
D14
C67
0.1u
R71
22k
R67
1.8k
R66
5.6k
IC54
TC7W66FK-F
1IN_oUT1
2oUT_IN1
3CoNT2
4GND 5
IN_oUT2
6
oUT_IN2
7
CoNT1
8
VCC
IC53
TC7W66FK-F
1IN_oUT1
2oUT_IN1
3CoNT2
4GND 5
IN_oUT2
6
oUT_IN2
7
CoNT1
8
VCC
C62
0.1u
C68
0.01u
C69
10u 6.3
R76
100
R72
12k
IC52
TC75W51FUF
1oUTA
2IN-A
3IN+A
4VSS 5
IN+B
6
IN-B
7
oUTB
8
VDD
R69
47k
C65
0.01u
R75
10k
C63
10u 6.3
C71
1u
CP51 4.7k
CP52 4.7k
C73 0.1u
R78
100
C83 100p C82 100p C80 100p C76 1000p C77 1000p C78 100p C84 1000p C85 1000p
C66 100p
C15 0.1u
C64
100p
C70
470p
C16 470p
C72
470p
C60
0.01u
C61
100p
C58
0.01u
C59
100p
R74
10k
R87 470k
R28
0
CN1
E40-6358-05
1
2
34
56
78
910
1112
1314
1516
1718
1920
2122
2324
2526
IC57
TC7MBD3244AFK
11oE
21A1
32B4
41A2
52B3
61A3
72B2
81A4
92B1
10 GND 11
2A1
12
1B4
13
2A2
14
1B3
15
2A3
16
1B2
17
2A4
18
1B1
19
2oE
20
VCC
C75 100p
C88
0.01u
IC56
XC6204B332M
1
VIN
2
VSS
3
CE
4NC
5VOUT
CP54 560
CP55 560
CP56 560
CP57 560
L52
0163
L53
0163
L51
0163
IC55
TC75S51FE(F)
1IN+
2VSS
3IN- 4
oUT
5
VDD
R79
10
L54
0419
C74 4.7u
C79 4.7u
C92 4.7u
IC5
C1 A2
C2 A6
C3 A18 C4 NC1
C5 A10 C6 A14
D1 A1
D2 A5 D3 A20
D4 A19 D5 A11 D6 A15
E1
A0
E2
DQ0
E3
DQ2
E4
DQ5
E5
DQ7
E6
A16
F1
CE
F2
DQ8
F3
DQ10
F4
DQ12
F5
DQ14
F6
BYTE
G1
oE
G2
DQ9
G3
DQ11
G4
VCC
G5
DQ13
G6
DQ15/A-1
H1
VSS1
H2
DQ1
H3
DQ3
H4
DQ4
H5
DQ6
H6
VSS2
A1 A3
A2 A7
A3 RY/BY
A4 WE
A5 A9
A6 A13
B1 A4
B2 A17
B3 WP/ACC
B4 RESET
B5 A8
B6 A12
AI
AO
AGND
5C
SI(I)
EN(I)
SO(O)
CLK/WAIT(I)
RST(I)
BUSY(O)
PLAY(O)
DGND
BSFT
RV1(I)
RV2(I)
RV3(I)
3C
3C
RV4(O)
REF
AI
DGND DGND
RESET
WE
USEL(I)
5C
DGND
AO
AI
5C
3C
AGND
(Ver CHECK)
5C
RYBY
FLASH MEMORY
BUFFER &
FILTER AMP
ANALOG SW ANALOG SW
BUFFER
3V REGULATOR
BUS SW WITH
LEVEL SHIFTING
ACCESSORY UNIT (X42-3250-60) : VGS-1

VGS-1
2967-3, Ishikawa-machi, Hachioji-shi, Tokyo, 192-8525 Japan
P.O. BOX 22745, 2201 East Dominguez Street, Long Beach,
6070 Kestrel Road, Mississauga, Ontario, Canada L5T 1S8
Rembrücker Str. 15, 63150 Heusenstamm, Germany
Leuvensesteenweg 248 J, 1800 Vilvoorde, Belgium
KENWOOD House, Dwight Road, Watford, Herts.,
Amsterdamseweg 37, 1422 AC Uithoorn, The Netherlands
Via G. Sirtori, 7/9 20129 Milano, Italy
Bolivia, 239-08020 Barcelona, Spain
(A.C.N. 001 499 074)
16 Giffnock Avenue, Centrecourt Estate, North Ryde, N.S.W. 2113 Australia
Unit 3712-3724, Level 37, Tower one Metroplaza, 223 Hing Fong Road,
1 Ang Mo Kio Street 63, Singapore 569110
CA 90801-5745, U.S.A.
Kwai Fong, N.T., Hong Kong
WD18 9EB United Kingdom
L’Etoile Paris Nord 2, 50 Allée des Impressionnistes,
Bp 58416 Villepinte, 95944 Roissy Ch De Gaulle Cedex
TERMINAL FUNCTION
Accessory Unit CN1
Pin No. Name I/O Function Remarks
1 BUSY O Busy signal output Hi : During the Flash memory writing data/During communication
command processing
2 PLAY O Playback signal output Hi : During Playback Output
3 SO O Serial data output Control command data input
4 SI I Serial data input Control command data output (Only during UART control)
5CLK/
WAIT ISerial clock input/ Main loop wait time setting
Only during clock synchronous control/
Only during UART control
6 EN I Enable input Lo : Enable/Power save release/Recording or Playback stop
7 USEL I Bit rate select signal input for UART Hi : 115200bps, Lo : 19200bps
8 RST I Reset signal input Lo : Reset
9 DGND - Digital GND
10 AGND - Analog GND
11 AO O Prerecorded Voice & Playback output
12 AI I Recording voice input
13 AGND - Analog GND
14 5C I 5V Regulator
15~16 NC - No connection
17 BSFT I Beat shift switch Hi : Beat shift circuit on (OR circuit with control by the MCU)
18~26 NC - No connection

ABCDE FGH I J
1
2
3
4
5
6
7
8
9
10
11
12
13
14
IC2
IC3
J79-0227-09
J79-0227-09
IC5
R17
R24
125
26
50
51 75
76
100
R25
Q1
X1
C11
CP6 CP8CP7
C51
C52
C54
C55
C56 C58
C59
IC52
IC53
45
18
4
3
32
41
4
15
5
18
IC54
IC56
C60
C62
C63
+
+
+
C67
C72
C73
C76
C78
C86
C87
C92
C94
R902
CP51
IC1
CP52
CP56
Q2
D
S
G
D
S
G
L51
L53
L54
R4
R51
R53
R55
R57
R61 R62
R63
R66
R69
R71 R72
R75
R78
R79
10 11
120
D902
CP3
C15
C16
R76
C85 C1
C2 C5
C7
C8
C9
CP10
R12
R13
R14 R16
R18
L52
R3
R8
D901
CP4
C10
C12
CP9
C53
C57
C61
C64 C65
C66
C68
C70
C71
C74
C75
C77
C79
C80
C82
C83
C84
C88
C89
C93
C3
C4
C6
Q51
R901
R903
CP54
CP55
CP57
R19
R23
R27
R28
R1 R2
R5
R6
R52
R54
R56
R58
R59
R60
R74
R87
R88
R89
R91
R92
C13 C14
R64 R67
IC51
45 18
45
18
IC55
34 15
C90
CN1
IC57
C69
RV1RV2RV3RV4
12
25 26
BUSY
SO
CLK/WAIT
USEL
DGND
AO
AGND
NC
BSFT
NC
NC
NC
NC
PLAY
SI
EN
RST
AGND
AI
5C
NC
NC
NC
NC
NC
NC
ACCESSORY UNIT (X42-3250-60) Component side view (J79-0227-09)
ACCESSORY UNIT (X42-3250-60) Foil side view (J79-0227-09)
Ref. No. Address
IC1 12C
IC51 9E
IC52 9F
IC53 10D
IC54 11E
IC55 11F
IC56 11E
IC57 12F
Q2 9D
Q51 10F
D902 10C
Ref. No. Address
IC2 4F
IC3 3C
IC5 5C
Q1 7E
D901 6G
PC BOARD VGS-1
Component side
Foil side
Layer 1
Layer 2
Layer 3
Layer 4
Layer 5
Layer 6
Component side
Foil side
Layer 1
Layer 2
Layer 3
Layer 4
Layer 5
Layer 6

XTAL
EXTAL
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
MD2
MD1
MD0
A20
D14
D12
D11
EN
USEL
MD0
A0
MD1 MD2
SCK1
PLAY
FWE
XTAL
ATT3 ATT2 ATT1
PLAY
TXD1
BUSY
EN
FWE
RESET
DA0
RV2
RV3
RV4
USEL
RV1
BUSY
RXD1
RV4
RV3
RV2
RV1
TXD1
RXD1
ATT4
SCK1
/STBY
/BREQ
/WAIT
NMI
/BREQ
/WAIT
NMI
/STBY
ATT3
ATT2
ATT4
ATT1
A21
AFM
EXTAL
AN0
PA1
A18
A17D10
D15
/CS1
A16
A15
D11
A9
A10
A11
A12
A13
A14
A0 A1 A3 A6 A8
D12
A2
A4
A7
D8
D13
A5
D9
A4
A8
A10
A14
A5
A18
RESET
A9
A13
A3
A7
A19 A11
A15 A2
A6
A21
A12
A16
A1
D8
D10
D13
D15
A17
/CS2
D9
D14
AFM
C67
0.1u
R71
22k
R67
1.8k
R66
5.6k
IC54
TC7W66FK-F
1IN_oUT1
2oUT_IN1
3CoNT2
4GND 5
IN_oUT2
6
oUT_IN2
7
CoNT1
8
VCC
IC53
TC7W66FK-F
1IN_oUT1
2oUT_IN1
3CoNT2
4GND 5
IN_oUT2
6
oUT_IN2
7
CoNT1
8
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
MCU
D33024D10XWV
1VCC1
2CS7/TMO0/TP8/PB0
3CS6/TMIO1/TP9/PB1
4CS5/TMO2/TP10/PB2
5CS4/TMIO3/TP11/PB3
6TP12/PB4
7TP13/PB5
8TP14/PB6
9TP15/PB7
10 RESo
11 VSS1
12 TXD0/P90
13 TXD1/P91
14 RXD0/P92
15 RXD1/P93
16 IRQ4/SCK0/P94
17 IRQ5/SCK1/P95
18 P40
19 P41
20 P42
21 P43
22 VSS2
23 P44
24 P45
25 P46
26 P47
27 D8/P30 28 D9/P31
29 D10/P32
30 D11/P33
31 D12/P34
32 D13/P35
33 D14/P36
34 D15/P37 35 VCC2 36 A0/P10 37 A1/P11 38 A2/P12 39 A3/P13 40 A4/P14 41 A5/P15 42 A6/P16 43 A7/P17 44 VSS3 45 A8/P20 46 A9/P21 47 A10/P22 48 A11/P23
49 A12/P24
50 A13/P25
51
A14/
P26
52
A15/P27
53
A16/P50
54
A17/P51
55
A18/P52
56
A19/P53
57
VSS4
58
WAIT/P60
59
BREQ/P61
60
BACK/P62
61
PHAI/P67
62
STBY
63
RES
64
NMI
65
VSS5
66
EXTAL
67
XTAL
68
VCC3
69
AS/P63
70
RD/P64
71
HWR/P65
72
LWR/P66
73
MD0
74
MD1
75
MD2
76
AVCC
77
VREF
78
AN0/P70
79
AN1/P71
80
AN2/P72
81
AN3/P73
82
AN4/P74
83
AN5/P75
84
DA0/AN6/P76
85
DA1/AN7/P77
86
AVSS
87
IRQ0
88
CS3/IRQ1/P81
89
CS2/IRQ2/P82
90
ADTRG/CS1/IRQ3/P83
91
CS0/P84
92
VSS6
93
TCLKA/TP0/PA0
94
TCLKB/TP1/PA1
95
TCLKC/TIOCA0/TP2/PA2
96
TCLKD/TIOCB0/TP3/PA3
97
PA4
98
PA5
99
PA6
100
A20/TIOCB2/ TP7/PA7
R12
100k
C8
1u
R16
10
R8 0
R6
100k
C6
0.033u
C68
0.01u
C69
10u 6.3
R76
100
R60
47k
R72
12k
C1 1u
R13 47k
R14
220k
R25
0
R56
22k
R57
22k
R58
22k
C54
8200p
C56
1000p
IC1
S-80930CNNB-G
1VSS
2VDD
4
oUT
3
CD
C4 0.1u
IC52
TC75W51FUF
1oUTA
2IN-A
3IN+A
4VSS 5
IN+B
6
IN-B
7
oUTB
8
VDD
R69
47k
C55
0.1u
R61
1.2k
C57
680p
R63
47k
IC51
TC75W51FUF
1oUTA
2IN-A
3IN+A
4VSS 5
IN+B
6
IN-B
7
oUTB
8
VDD
R55
47k
C65
0.01u
R75
10k
C63
10u 6.3
CP4 47k
C71
1u
R2 10k
CP51 4.7k
CP52 4.7k
R1 220k
R5 220k
R4 0R3
4.7k
C73 0.1u
R78
100
C83 100p C82 100p
C80 100p C76 1000p C77 1000p
C78 100p
C84 1000p C85 1000p
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
34
56
78
910
1112
1314
1516
1718
1920
2122
2324
2526
CP9 47k
CP10 47k
IC57
TC7MBD3244AFK
11oE
21A1
32B4
41A2
52B3
61A3
72B2
81A4
92B1
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
2SK1824-A
Q51
C87
0.1u
R88
1M
R89
10k
C2 C5
100p
0.01u
R64
10k
C75 100p
C88
0.01u
CP8 47k
R24
1k
IC56
XC6204B332M
1
VIN
2
VSS
3
CE
4NC
5VOUT
CP54 560
CP55 560
CP56 560
CP57 560
C10 3p
CP6
47k
CP7 47k
C89
1000p
2SK1824-A
Q2
R17
4.7k
R19
10k
X1
L77-1950-05
11.0592MHz
C90
4700p
C51
1u
R91
220k
R92
0
R18
0
Q1
Q1
DTC114YE
L52
0163
L53
0163
L51
0163
IC55
TC75S51FE(F)
1IN+
2VSS
3IN- 4
oUT
5
VDD
R79
10
L54
0419
C74 4.7u
C79 4.7u
C92 4.7u
C94 4.7u
C93 4.7u
R901
4.7k
D901
1SS400
D902
D901, 902
1SS400
R902
220k
IC3
A1 A0 A2 A1 A3 NC1 A4 A3 A5 A6 A6 A8
B1 DQ4
B2 A2
B3 WE
B4
A4
B5
A7
B6
DQ0
C1
DQ5
C3
NC2
C4
A5
C6
DQ1
G2
oE
G3
CE
E1
VCC2
E6
VSS2
F1
DQ6
F3
A18
F4
A17
F6
DQ2
G1
DQ7
H3 A11
H4 A12
G4 A16
G5 A15
G6 DQ3
H1 A9
H2 A10
D1
VSS1
D6
VCC1
H5 A13
H6 A14
IC5
C1 A2
C2 A6
C3 A18
C4 NC1
C5 A10
C6 A14
D1 A1
D2 A5 D3 A20
D4 A19
D5 A11 D6 A15
E1
A0
E2
DQ0
E3
DQ2
E4
DQ5
E5
DQ7
E6
A16
F1
CE
F2
DQ8
F3
DQ10
F4
DQ12
F5
DQ14
F6
BYTE
G1
oE
G2
DQ9
G3
DQ11
G4
VCC
G5
DQ13
G6
DQ15/A-1
H1
VSS1
H2
DQ1
H3
DQ3
H4
DQ4
H5
DQ6
H6
VSS2
A1 A3
A2 A7
A3 RY/BY
A4 WE
A5 A9
A6 A13
B1 A4
B2 A17
B3 WP/ACC
B4 RESET
B5 A8
B6 A12
R903
220k
AI
AO
AGND
5C
SI(I)
EN(I)
SO(O)
CLK/WAIT(I)
RST(I)
BUSY(O)
PLAY(O)
DGND
BSFT
RV1(I)
RV2(I)
RV3(I)
3C
3D
3A 3C
3D
RV4(O)
3C
DGND DGND
DGND
DGND
ACCESSORY UNIT (X42-3250-60) : VGS-1
REF
REF
AI
DGND DGND DGND
RESET
RESET
WE
3D
SELF
USEL(I)
5C
DGND
AO
AI
5C
3C
AGND
(Ver CHECK)
5C
5C
5C
RYBY RYBY
SRAM FLASH MEMORY
RESET
REVERSE CURRENT
PREVENTION
SW : 3V→5V
LEVEL SHIFTING
BUFFER &
FILTER AMP
BEAT SHIFT SW
LPF
AUDIO MUTE SW
ANALOG SW ANALOG SW
BUFFER
3V REGULATOR
BUS SW WITH
LEVEL SHIFTING