Japan Radio Co. JSS-2150, Service Manual

Page: 131 / 160

APPENDIX
5-3
5.1.3 CMN-2250 TRX UNIT
DE
MOUT
S
E
L
DUP
D
E
MO
UT
TRX MAIN
AT
T
12dB
A/
D
DSP
D/
A
D/
A
A/
D
14
bi
t
RS
-4
85
TR
A
N
-
SC
EI
VE
R
PT PT PT
UA
R
T
T
X
57
.6
kb
ps
UA
R
T
RX
57
.6
kb
ps
UA
R
T
RX
38
.4
kb
ps
UA
R
T
T
X
38
.4
kb
ps
FR
O
M
(SPI
)
4M
bi
t
PT
PT
2
ND LO
DI
SP LI
NE+
DI
SP LI
NE-
LI
N
E
O
U
T
-
LI
N
E
IN
+
LI
N
E
IN
-
SW
RE
G
OP
E
RE
G
A5
V
RE
G
C9
V
D3
.3
V
RE
G
D1
.8
V
D1
.2
V
RE
S
E
T
IC
D1R2V
DI
SP KEY
SE
L B
K
AGC
RS
-4
8
5-
B
TX
O
U
T
RX I
N
WK
R
M
ODE
M
U
N
IT
DIOD E SWIT CH
DIOD E SWIT CH
AT
T 6
A
TT
12
(7
0M
H
z)
RX
B
P
F
2
RX
B
P
F
1
RX
B
P
F
7
RX
B
P
F
6
RX
B
P
F
5
RX
B
P
F
4
RX
B
P
F
3
(1
.6
M
H
z
～
29
.9
99
9M
Hz)
DS
P 20
MHZ
DE
T
T
X
D
E
T
fc
=35
M
H
z
fc
=35
M
H
z
se
nt
en
c
ch
ec
k
RA
M
128b
yt
e
×
2
RA
M
128b
yt
e
×
2
se
nt
en
c
ch
ec
k
DP
S RST
PI
O
PA KEY
(90
kH
z
～
2
9,
9
99
.9
kH
z)
fc=3
5M
H
z
D/
A
AT
T
DE
CODE
R
1s
t I
F
F
IL
T
E
R
70
.0
36
M
H
z
RE
G
D2
.5
V
DDS
2S
C53
37
ATT
DA
C
5
67
4
TL
P1
81
GR
FPGA
:X
C3
S20
0PQG20
8I
TL
P1
81
GR
TL
P1
81
GR
TL
P1
81
GR
TL
P1
81
GR
XCF
01
SVO
G20
C
FP
GA
Co
nf
ig
ra
tion
RO
M
R3
11
2Q1
01
A
fs=1
56
.2
5k
H
z
fs=
1
56
.2
5k
H
z
fs
=
156
.2
5k
Hz
EX
T
KE
Y
TX DET
RX BAND1
TXFIL BAND8
MODEM KEY
SCAN STOP
RA
M
12
8b
yt
e
×1
RA
M
12
8b
yt
e
×1
RX
B
A
ND
1
RX
B
A
ND
2
RX
B
A
ND
4
A
DDRE
S
S
DE
CO
RDE
R
RX BAND2
RX BAND4
RXTUNE1
～ 16
DATA BUS
ADDRESS BUS
E
EPR
OM
(SPI
)
64
kbi
t
TES
T
DE
M OUT
+
DE
M OUT
-
MOD
IN
+
MOD
IN
-
LI
NE
M
O
DE
M
LINE EXT
LI
NE
D
IS
P
BK IN
DUC 1
0
0MHZ
1S
T LO
(7
0.
12
6
～
10
0.
03
59
M
H
z)
RX
TUN
E
1,
2
,4
,8,
16
DUPLEX
DSP 20MHZ
ATT 6
ATT 12
PLL 20MHZ
PL
L 20
M
H
Z
TC
X
O
:2
0M
H
z
2S
C3
32
4
M
M
B
FJ
31
0
X4
KEY
C
O
NT
MODEM SEL
D
ISP
KE
Y
IN
PA RDY
TX RDY
N
JM
240
6F
FP
G
A
2
0M
H
Z
W.
D
.T
DUP BK
TXFIL TEST
TXFIL DET
TXFIL
RXFIL
MODE
M MONI
MODEM MONI
A
K
53
85
BV
F
A
D
SP
-2
13
63
KEY
IN
LI
NE
MO
DEM
TUNE KEY
TX
D
CONT
MNT
R
X
D
TRX
TXD
MODE
M TXD
DUP
T
X
D
EXT CLK
PCM1
74
2
BR
25
L6
40
A
N
77
09
SP NJM
23
74
SP
I
RX
A
N
T
HARD VER
SSB
3bit
M
25P
40
TL
34
14
AI
A
D
99
51
M
M
B
FJ
31
0
X4
SN
74
C
B
T
3
12
5
IS
L3
17
2E
IB
Z
NJ
M2
73
7
AT
T
6d
B
RX
B
P
F
8
PL
L
D
UC 4
00M
HZ
2S
C
4
11
6
1/2
BF
99
8R
MB1
5E
03
2S
C
335
6 X
2
2S
C33
56
2S
C33
56
2S
C3
35
6
2S
C33
56
40
0M
H
z
RX
B
P
F
1
BA
ND
90
～
39
9.
9k
Hz
40
0
～
1,
59
9.9
kH
z
1,
60
0
～
3,
19
9.9
kH
z
3,
20
0
～
6,
09
9.9
kH
z
6,
10
0
～
10
,4
99
.9
kH
z
10
,5
00
～
17
,9
99
.9
kH
z
18
,0
00
～
29
,9
99
.9
kH
z
1,
60
0
～
29
,9
99
.9
kH
z
RX
Fr
eq
.
2S
C
3
35
7
90
°
0
°
+4
5
°
0
°
NJ
M
2
73
7
TC
74
VHC
23
8
TC7
W
H7
4
LO
2
0M
H
Z
LO 20MHZ
AD 20MHZ
RX
B
P
F
2
RX
B
P
F
3
RX
B
P
F
4
RX
B
P
F
5
RX
B
P
F
6
RX
B
P
F
7
RX
B
P
F
8
RX ANT
RS
48
5 CON
N
EC
T
R
S
48
5D
RV
NJ
M27
46
NJM
27
46
PL
L LO
CK
ALE
WR
RD
IO
U
P
D
A
T
A
DDS
PL
L
DAI
IO
U
P
D
A
T
E
TX BAND1
TX BAND2
TX BAND3
DUC RS
T
INT DTCXO
PLL LOCK TRX MAIN
TXFIL BAND4
TXFIL BAND2
TXFIL BAND1
DISP KEY OUT
BK OUT F
DUP BK OUT
5bit
LINE EXT
LINE DISP
LINE DISP ON
DUP BK IN
AD15
～
AD0
DEMOUT SEL
RS485 CONNECT
BK ERR
TX
D4
8
5
SCAN STOP IN
TE
ST
TX ON
RX ON
TXFIL KEY
NJ
M27
46
DAI
ERR485
E
RR4
85
2bit
DIPSW1,2
RX ON
OS
K
RS
-4
8
5-
A
DUC OU TEN
0
0 1
2
S
C
411
6
2S
C
41
16
MAX
46
22
NJ
M
2
88
5
RE
G
ANA
LOG
ON
ANALOG ON
NJ
M2
86
0
DT
CXO
(OP
TI
ON)
2S
C
4
11
6
2S
C4
11
6
LI
N
E
O
U
T
+
-4
5
°
0
°
TX
O
N
TX
ON
DA
C RST
2S
C
5
33
7
2S
C33
57
DUC
O
N
DAI DAI DAI
DUC
R
S
T
-BK I
N
BK OU
T F
BK
O
U
T
D
ISP
KE
Y
OU
T
SEL
B
K
IN
EXT
KE
Y
IN
LI
NE
D
IS
P
ON
DAI
DAI
RE
S
E
T
IC
RST
N
JU7
70
4F
-2
9A
D3R3V
SW
RE
G
R
122
5N
12
2K
N
JM
2
86
1F
25
N
JM
2
88
5DL
1-
1
8
RE
G
A9
V
A3
R3
V
NJM
2
88
0U
1-
33
1/
64
1/2
AD 2
0MH
Z
TC
74
V
H
C
4
04
0
A/
D,
D/
A
TR
X RST
DAI DAI
TC
7
W
14
TC7
W
U0
4
WD OUT
DAI DAI
1 PLL RST
DAC RST
DDS RST
RE
G
A
N
77
09
SP
C9
V
RE
G
Co
m
p
C9
V
Co
m
p
EXT
C
LK
NJ
M
2
40
6
NJ
M2
74
1
NJ
M28
87
IN
T
D
T
C
X
O
SEL BK OUT
IN
T
DT
C
X
O
TC7
W
H0
4
PW
R
RX BUSY
A
K
53
85
BV
F
TL
34
14
AI
TL
34
14
A
I
PA UNIT
DU
C
BLOCK