11 - 4
11-3 REC UNIT
IC9
SN74AHC1G66HDBV
IC8
SN74AHC1G66HDBV
IC7
ML2302TB
IC6
K9F5608U0C
IC4
SN74AHC1G02DCK
IC5
SN74AHC1G32DCK
IC2
M30620FCPGP
IC10
R1111N321B
IC1
BD5228G
IC3
FT245BM
Q1
UNR921NJ
Q2
UNR9119J
REC UNIT
J2
6
7
8
9
1
2
3
4
5
R7 27
R6 27
EP1
EP3
EP4
C1
0.01
D+
D–
VBUS
VBUS
VBUS
VBUS
VBUS
VBUS
VBUS
VBUS
VBUS 1
VDD
2
GND
3
CE
4
NC
5
VOUT
R1
10k
HJ1
1
2
3
4
5
6
7
8
9
BUSY
RXD
TXD
CNVSS
SCLK
GND
RESET
EPM
SUB_3V
SUB_3V
SUB_3V
BUSY
RXD
TXD
CNVSS
CNVSS
SCLK
BUSY
BUSY
RXD
RXD
TXD
TXD
SCLK
SCLK
RESET
RESET
RESET
RESET
RESET
RESET
EPM
BUSY
RXD
TXD
SCLK
EPM
EPM
R15
47k
R8
47k
R19
47k
C5
0.01
R9
10k
C2
10
C3
0.01
1
OUT
2
VDD
3
VSS
4
NC
5
CD
R11
470
X1 CR-672
6.000 MHz
C6
33p
C7
33p
C8
0.1
R12 330
C12
0.01
C10
0.1
EESK
EEDATA
VCC
RESET#
RSTO#
3V3OUT
USBDP
USBDM
GND
D7
D6
D5
D4
D3
D2
D1
25
D0
26
VCC
27
XTIN
28
XTOUT
29
AGND
30
AVCC
31
TEST
32
EECS
RSTO
C9
0.033
1
2
3
4
5
6
7
8
9
GND
10
PWREN#
11
SI/WU
12
RXF#
13
VCCIO
14
TXE#
15
WR
16
RD#
R13 1.5k
17
18
19
20
21
22
23
24
A_SQL
A_SQL
A_SQL
B_SQL
A_SQL
A_SQL
B_SQL
B_SQL
B_SQL
B_SQL
B_SQL
SUB_3V
D0
D1
D2
D3
D4
D5
D6
D7
D0
D0
D1
D2
D3
D4
D5
D6
D7
D1
D2
D3
D4
D5
D6
D7
C28
0.01
C27
100
C26
0.01
C25
0.01
C18
0.01
J6
1
2
3
4
1
2
3
4
5
1
2
3
4
5
S1
SQL
R18
330k
S2
S3
UP
DOWN
J7
1
2
3
4
5
6
GND
AOUT
AOUT
AOUT
B_AIN
B_AIN
A_AIN
A_AIN
A_AIN
CPU_RX
CPU_TX
CPU_RX
CPU_TX
+3V
+3V
to
LOGIC unit
HJ9
to
LOGIC unit
HJ8
VOL_UP_DOWN
VOL_UP_DOWN
VOL_UP_DOWN
VOL_UP_DOWN
VOL_UP_DOWN
SQL
SQL
SQL
SQL
SQL
SUB_3C
SUB_3C
SUB_3C
SUB_3C
C23
1
C22
0.01
C24
1
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
AVDD
SG
LOUT
LIN
MOUT
MIN
AGND
TEST9
AOUT
SPIN
SPOUT–
SPOUT+
NC
NC
NC
AGND
AVDD
SPVDD
CB2
CB1
VR
DGND
FIFOST
RESET
CBUSY
CH
EMP
MID
FUL
DVDD
WR
RD
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
C16
0.01
R16
470k
C17
18p
C19
0.01
R17
150k
D0
D1
D2
D3
D4
D5
D6
D7
DVDD
TEST2
TEST3
TEST4
TEST5
TEST6
TEST7
TEST8
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
TEST0
XT
XT
VOXO
IOR
IOW
DREQL
DACKL
DGND
VCK
ADSD
DASD
SIOCK
BUSY
D/C
CS
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
C20
22p
C21
22p
X2 CR-708
16.384 MHz
D0
D1
D2
D3
D4
D5
D6
D7
D4
D3
D2
D1
D0
D7
D6
D5
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
NC
NC
NC
NC
I/O0
I/O1
I/O2
I/O3
NC
NC
NC
VSS
VCC
NC
NC
NC
I/O4
I/O5
I/O6
I/O7
NC
NC
NC
NC
NC
NC
NC
NC
NC
GND
R/B
RE
CE
NC
NC
VCC
VSS
NC
NC
CLE
ALE
WE
WP
NC
NC
NC
NC
NC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
C15
0.01
C14
0.01
C13
0.01
1
A
2
B
3
GND
4
Y
5
VCC
1 A
2 B
3 GND
4
Y
5
VCC
R21
100k
R22
100k
EMP
MID
FUL
EMP
MID
FUL
RD
RD
RD
RD
RD
WR
WR
WR
RD
WR
WR
EMP
EMP
MID
MID
FUL
FUL
RD
RD
WR
WR
WR
CS2
CS2
CS2
CS1
CS1
CS0
EPM
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
P72/clk2/TA1OUT
P71/RXD2/SCL
P70/TXD2/SDA
P67/TXD1
P66/RXD1
P65/CLK1
P64/CTS1/RTS1
P63/TXD0
P62/RXD0
P61/CLK0
P60/CTS0/RTS0
P57/RDY/CLKOUT
P56/ALE
P55/HOLD
P54/HLDA
P53/BCLK
P52/RD
P51/WRH/BHE
P50/WRL/WR
P47/CS3
P46/CS2
P45/CS1
P44/CS0
P43/A19
P42/A18
P94/DA1/TB4IN
P93/DA0/TB3IN
P92/TB2IN/SOUT3
P91/TB1IN/SIN3
P90/TB0IN/CLK3
BYTE
CNVSS
P87/XCIN
P86/XCOUT
RESET
XOUT
VSS
XIN
VCC
P85/NMI
P84/INT2
P83/INT1
P82/INT0
P81/TA4IN/U
P80/TA4OUT/U
P77/TA3IN
P76/TA3OUT
P75/TA2IN/W
P74/TA2OUT/W
P73/CTS2/RTS2
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
P12/D10
P11/D9
P10/D8
P07/D7
P06/D6
P05/D5
P04/D4
P03/D3
P02/D2
P01/D1
P00/D0
P107/AN7/KI3
P106/AN6/KI2
P105/AN5/KI1
P104/AN4/KI0
P103/AN3
P102/AN2
P101/AN1
AVSS
P100/AN0
VREF
AVCC
P97/ADTRG/SIN4
P96/ANEX1/SOUT4
P95/ANEX0/CLK4
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
C4
0.01
P41/A17
P40/A16
P37/A15
P36/A14
P35/A13
P34/A12
P33/A11
P32/A10
P31/A9
VCC
P30/A8(/-/D7)
VSS
P27/A7(/D7/D6)
P26/A6(/D6/D5)
P25/A5(/D/D4)
P24/A4(/D4/D3)
P23/A3(/D3/D2)
P22/A2(/D2/D1)
P21/A1(/D1/D0)
P20/A0(/D0/–)
P17/D15/INT5
P16/D14/INT4
P15/D13/INT3
P14/D12
P13/D11
C11
0.01
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
ALE
CLE
D7
D6
D5
D4
D3
D2
D1
D0
R10
47k
PWREN
PWREN
PWREN
PWREN
TXE
TXE
TXE
TXE
RXF
RXF
RXF
PWREN
TXE
RXF
RXF
R_B
FIFOST
CBUSY
FIFOST
CBUSY
FIFOST
FIFOST
CBUSY
CBUSY
RESET
EMP
MID
FUL
RD
WR
FIFOST
CBUSY
SUB_RX
SUB_RX
SUB_TX
SUB_TX
R20
100
MP1
MP2
from/to
USB jack
Explanatory notes
VOLTAGE LINE
RECORDING/PLAYING
COMMON LINE
RECORDING LINE
PLAYBACK LINE
3.1V
3.0V
Содержание IC-R20
Страница 1: ...SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST 1 UNIT LAYOUTS 14 VOLTAGE DIAGRAM 16 Jan 2010...
Страница 48: ...COMMUNICATIONS RECEIVER iC r20 SERVICE MANUAL...
Страница 115: ...12 4 MAIN UNIT BOTTOM VIEW...
Страница 117: ...S 14104MZ C1 2004 Icom Inc 1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan...
