Filter
Top Products
8-9
November 1998
Part No. 001-7600-001
UHF (7640) MAIN BOARD SCHEMATIC
5
6
7
8
9
10
15
14
13
12
OPT2
OPT1
AUX
MIC IN
SIG OUT
OPV1
OPV2
OPV3
BUSY
MIC OUT
PTT OUT
PTT IN
3
2
1
4
11OPT3
GND
16
J4
17
18
19
20
21
22
23
24
25
26
27
28
29
30
SCK
SI
SO
OPINT
OPCS
AF OUT
DET
RXMUT
AF ON
MIMUT
HV
5V
GND
TO OPTION UT-96
UT-105
NC
NC
BEEPO
W6
DC
CABLE
EP3
EP3
GND
VCC
C84 470
D16 DSA3A1
C83 0.1
C82 0.01
D28
RD20E
R59
10k
Q14
2SJ377
R60
470
Q11
DTC114EU
C77
0.001
C75
10
OI
G
IC2 TA7808F
C74
220
C73
0.1
HV
C80
0.1
C78
10
1
2
3
6
5
4
Q12 2SB1132
R58
4.7k
Q13
XP6501
C81
0.1
I
IC3 AN78L05M
O
G
W8
C79
10
CPU5V
PWON
R112
330k
R113
100k
VIN
R56
4.7k
R57 4.7k
Q10 2SD1664
D15
1SS302
C70 47P
C71 10
Q15
DTC114EU
C72 1
R54
4.7k
R55 4.7k
Q8
2SD1664
D14
1SS302
C67 47P
C68 10
Q9
DTC114EU
D31
DAN202U
C69 4.7
TXC
TMUT
D13
DAN202U
IO
OI
FI2 CFWM450E
FI3 CFWM450G
D12
DAN202U
R52 22k
R51 12k
R50 22k
R53 15k
T8V
R8V
5V
Q7
DTA144EU
NWC
R49
15k
C65
0.01
C66 0.01
1
2
4
5
6
7
8
3
OSCIN
OSCOUT
MIXOUT
VCC
IFIN
DEC
FILOUT
FILIN
16
15
14
13
12
11
10
9
MIXIN
GND
N-REC
N-DET
RSSI
IFOUT
QUAD
AFOUT
IC1
TA31136FN
C64
0.1
R48 1.5k
R42
100k
C63
0.1
R46
100k
C61
270p
C62
270p
R44 820
R45 330k
R41
470
C59
0.001
C60 0.01
NOIS
SD
R38 47k
R39 47k
C55 0.001
C56 0.001
R37
1.2k
C54
0.001
Q5
2SC4081
C52 100p
R47
47
C57
4.7
C58
0.001
X1
CDBCA450CX24
R40
2.2k
C51
100p
Q4
2SC4215
L15
0.18µH
R32
100
C50 68p
C303 0.001
C48
0.001
R34
330
C301
4p
FI1 FL-287
C300 4p
C47 12p
R33
330
C46
0.001
L14
56nH
L13
0.12µH
R36
100
C49 0.001
C45 68p
C44 0.001
R31
22
Q2
2SK272
R25 100k
C22
6p( L )
5p( ML,H )
4p( MH )
R15 47k
L12
39nH
C42 3p
R27 270
R28
18
R29 270
R25
100k
C34
7p( L )
6p( ML )
4p(MH/H)
R11
220k
C309
47p
C19
0.001
T1
D7
HVU350
C23
2p ( L )
1.5p(ML/MH)
L7 15nH
C37
1p ( L )
0.3p(Other)
C36
0.5p
R24
10k
C312 47p
C40
47p
T4
D10
HVU350
R23
220k
C39
7p( L )
6p( ML )
5p(Other)
L10
15nH
L9
4.7*H
R20
2.2k
C33
47p
C32
1p ( H )
1.5p( ML )
2p ( MH )
C348
0.22
Q3
2SK241
R30 68
C43 0.001
C308
1p
R18 68
C29
L8 15nH
C31 0.001
R22
10k
C311
47p
C35
47p
T3
D9
HVU350
R21
220k
R12
10k
C28
1.5p( L )
0.5p(ML/MH)
C313
47p
C25
C24
1p ( L )
0.5p(Other)
L11 15nH
C41 1p
R13
220k
C310
47p
C27
47p
D8
HVU350
R14
10k
T2
C26
7p( L )
6p( ML )
5p( MH/H )
C20
1.5p
D6
1SS352
R10
4.7k
C21
47p
Q1
DTA144EU
RFATT
C315
47p
C314
47p
D5
MA77
C18
2.5p
L5
Y655LY-03K=P3
D4
MI809
C17
L4
D3
MI407 ( )
UM9410F( )
L6
LW-25
C16
470p
R9 220
R8
220
C15
47p
C13
47p
C12
5p(Other)
4p( -MH)
3p( -MH)
L3
LA-382
C10
9p(L,ML)
8p( -MH/H)
6p( -MH)
C11 2p( L )
1p(Other)
L2
C8 0.001
C7
7p
R4
47
FOR
REV
C3
0.001
R5 100
R2 1
D1
MA713
R6
100
R3
100
C6
0.001
C5
0.001
L1
R1 100k
R7 47
W2
ANTENNA
J1
CPU5V
MIC
8V
CPU5V
TEMP
R110
NTCCF20124AH(47k)
R111
100k
-
+
2
3
1
4
IC6a
NJM2902M
R109 10k
C135 2.2
C134 0.001
R108 12k
C133 0.1
R107 100
C132
0.56
6
7
5
IC7b
NJM2904M
+
-
R104 22k
C131 470p
R106 270k
R105
22k
R103
220k
DET
AFOUT
B
R102
1
C130
0.047
R101
4.12k
C129
0.047
R100
36k
C128
0.047
+
-
10
9
8
IC6c
NJM2902M
R99
2.2k
C127
0.047
C126
0.047
14
-
+
IC6d
NJM2902M
13
12
R94 1.5k
R96
91k
C307 4.7
R270 1M
Q42
DTC144EU
TXC
R97
47k
R98
47k
AFHPF
Q22
2SC4081
C342
0.001( only)
TXC
C329
47p
Q44
DTC144EU
Q45
DTA144EU
C339
0.001
( only)
C298
47p
5V
HV
T8V
R8V
R84
1k
C118
470p
R85
10k
D18
MA77
R86
1k
C120
470p
R87
10k
C121
10p
D19
MA77
R83
4.7k
C117
47p
R81
4.7k
C347
0.001
( only)
R82
2.7k
C116
0.001
R80
220
Q21
2SC5107
R79
22
L21
C115
0.001
R77
3.3k
C113 7p
C338
R78
1.5k
C112
0.001
R75
100
Q20
2SC5107
R76
22
L20
18nH
C111
0.001
C109
6p( )
7p( )
C108
W7
C106
7p ( only)
C110
0.001
C297
47p
C107
470p
D17
DA221
C105
470p
R71
Q19
2SC4703
L18
22nH
C103
C102
R72
C324
47p
C104
470p
R74
220
R73
2.2k
R70 2.2
C336
47p
L19
15nH
C304
12p
C100
22
C99
47p
C98
0.001
L17
18nH
C101
5p
EP2
IC5
C286 47p
C285 0.001
C97 47p
C96 0.001
C344 0.001
C343 0.001
C95 22
C337 2.2
C93
L16
LA-242(Other)
LA-232( -MH, -H)
C91
4.7
Q18
2SB1143
R67
4.7k
R69
150
C92
10
C90
0.1
Q17
2SC4081
R66
68k
R65
68k
C89
0.001
7
6
5
R64
150k
C87
47p
R273
820k
C88
0.022
TMUT
D30
MA111
C86
47p
R62
18k
R271
10k
R63
1M
R61
18k
C85
0.001
C302
0.001
C119
0.001
C345
0.001
D23
MA111
R137
4.7k
Q31 2SC4081
C167
10
C166
0.001
R133
10
R140
270
R139
18
R138
270
C165
6p
L31
18nH
C164
6p
C162
6p
L30
27nH
Q30
2SC5110
C163
0.001
R136
220
R135
4.7k
R134
4.7k
C161
470p
Q29
2SC5107
C160
7p
R131
220
R272 1k
R132
180k
C159
2p
C158
12p
C157
470p
Q28
2SC5107
L28
27nH
R130
150k
R129
C156
470p
R128
10
C295
0.1
C145
47p
C144
0.001
Q23
2SC5110
C146
0.5p
L24
1µH
R118
1k
Q24
DTC114EU
Q27
DTC144EU
C296
0.1
C341
0.001
TXC
Q26
DTC114EU
C340
0.001
R126
560
L27
1µH
C155
0.5p
C346
W9
C154
47p
C153
0.001
Q25
2SC5110
R123 4.7k
R124 4.7k
C151
5p( L )
2p( M )
8p( H )
C152
8p(L/MH)
4p( ML )
3p( H )
C143
12p( L )
8p ( ML )
6p ( HH )
5p ( H )
R117 1
R116 6.8k
R115 6.8k
C142
10p( L )
6p ( ML )
5p ( MH )
3p ( H )
C139
8p( L )
6p( ML )
4p( MH/H )
R125 10
L23
MC152-E558ANA-100051=P3
C141
18p( L )
15p( ML/MH )
12p( H )
R275
1k
D34
HVU350
D20
HVU350
L22
0.56µH
R114
10
C148
5p(L,MH)
4p(ML/H)
C149
R274
1k
D33
HVU350
D22
HVU350
L25
0.18µH
R121
47
L26
MC152-E558ANA-100051=P3(L,ML)
MC152-E558ANA-100050(MH, -H )
C150
10p( L )
8p ( ML )
15p( MH )
4p ( H )
R276
C147
1p
R120
100k
D21
1T365
R122
10k
C138
0.001
C188
4.7
C137
470p
C293
0.001
R260
12k (MH only)
8.2k(Other)
+
-
SP1
P1
CHASSIS
J2
SP JACK
C197
0.001
G
AFO
C196
0.001
R172 10k
R173 10k
C195
470
C194
220
1
4
2
3
IC9
LA4425A
R255
10k
C281
0.1
AFO
H
C291
0.1
C292
0.047
R259 22k
C193
0.1
R169
1k
Q32
DTC144EU
D32
MA111
Q41
DTC363EK
R170
6.8k
AFON
BEEP
4
3
2
1
5
R165
10k
C190
0.1
R167
100
R168 100k
C322
0.22
R166
10k
C191 0.012
D29
DAN202U
AFATT
R160
47k
C187
0.1
R261
100k
R164
47k
C189
0.1
R163
10k
1
2
3
8
IC4a
NJM2904M
IC8a
NJM2904M
C349
0.22
R156
56k
R155
10k
R157 1.2M
C184 22p
R264
10k
R158
15k
R258 47k
C185
0.1
C186
0.1
8V
5V
VCC
R159
33k
MICIN
MICOUT
A
R265
10k
Q46
DTA144EU
R153
10k
C334
47p
7
6
5
IC8b
NJM2904M
4
8
C180
0.0039
R152
5.6k
R266
10k
R150
100
C282
22
C319
0.1( )
0.0047( )
R279
82k( only)
R162
470k
C179
0.1
R161
470k
7
6
5
+
-
R148
100k
R147
10k
R146
82k
R144
22k
R145
75k
C174
0.1
C175
0.1
C176
2.2
R141
10k
R268
10k
R269
39k
R142
10k
TONE
DTCS
C335
47p
C323
10p
W13W16 W15 W14
C173
12p
L32
0.56µH
C170
5p
C171
4p
C172 5p
L33
0.56µH
C169
12p
R127
4.7k
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
5V
AFO
SI
OPT3
OPT2
OPT1
OPV3
OPV2
OPV1
PTT
PTTIN
DET
PWON
EXPTT
DIMIN
SO
SCK
SD
LVIN
GND
8V
CPU5V
GND
OPINT
OPCS
BUSY
BEEPOUT
TONE
BEEP
DTCSIN
RFATT
NOIS
UNLK
EXEN
EXST
DAST
PLST
VIN
TEMP
MIC
R235 1k
R226
1k
R234
1k
R225
1k
R233
1k
R224
1k
R232
1k
R223
1k
R231
1k
R222
1k
R230
1k
R221
1k
R229
1k
R220
1k
C284
47p
C279
47p
C269
47p
C278
47p
C252
47p
C243
47p
C253
47p
C244
47p
C254
47p
C245
47p
C255
47p
C246
47p
C256
47p
C247
47p
C257
47p
C248
47p
C258
47p
C249
47p
R252
1k
R236
1k
R240
1k
R245
1k
R249
1k
R237
1k
R241
1k
R246
1k
R250
1k
R238
1k
R242
1k
R247
1k
R251
1k
R239
1k
R243
1k
C270
47p
C268
47p
C277
47p
C267
47p
C276
47p
C266
47p
C275
47p
C265
47p
C274
47p
C264
47p
C273
47p
C263
47p
C272
47p
C262
47p
C271
47p
OPINT
OPCS
BUSY
BEEPO
TONE
BEEP
DTCS
RFATT
NOIS
UNLK
EXEN
EXST
DAST
PLST
VIN
TEMP
R228
1kC259 47p
R219
1kC250 47p
R218 1M
C260
47p
C251
47p
C261
47p
R248
1k
LVIN
SD
SCK
SO
DIMIN
EXPTT
PWON
DET
PTTIN
PTTOUT
OPV1
OPV2
OPV3
OPT1
OPT2
OPT3
SI
AFO
IC12
M62363FP-650C
VIN1
1
2
3
4
5
6
7
12
24
23
22
21
20
19
18
13
EXST
SO
SCK
TXC
TMUT
EXEN
R206
100k
C232
0.01
NWC
AFHPF
AFATT
HORNO
R227 1k
R213 100k
R214 100k
R215 100k
R216 1M
R217 1M
C
C241
47p
C242
47p
C240
0.001
C239
0.001
D25 MA111MM
RM
D24
DAN202U
Q37
DTC144EU
R205
10k
R204 10k
RMUT
IC13
BU4094BCF
STRB
DATA
CLK
Q1
Q2
Q3
Q4
VSS
VDD
OENA
Q5
Q6
Q7
Q8
Q,S
QS
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
VOUT1
VOUT2
VIN2
VDD
LD
CLK
DI
VIN3
VOUT3
VOUT4
VIN4
VIN6
VOUT8
VOUT7
VIN7
GND
RESET
VDAREF
D0
VIN6
VOUT6
VOUT5
VIN5
817
916
10 15
11 14
C328 47pC231 0.001
C326 47p
C327 47p
C325 47p
C227 0.01
C228 0.001
C229 0.001
C230 0.001
T1
T2
DAST
SCK
SO
T3
T4
R199
470
DTCS
14
13
12
11
10
9
8
VDD
CONT A
CONT D
I/O
O/I
O/I
I/O
1
2
3
4
5
6
7
I/O
O/I
O/I
I/O
CONT B
CONT C
VEE
IC11
BU4066BCF
TXC
R198
10k
Q36
DTC144EU
RMUT
C333
47p
C225
0.01
+
-
1
8
2
3
4
R194
180k
C223 12p
C321
47p
C221
0.0027
R195
220k
Q35
2SC4081
C332
47p
NWC
R278
10k
R154
100
C183
0.1
R254
470k
C306
47p
R193
470k
R143
1k
E
FD
C222
18p
C177
0.001
C178
47p
HV
5V
R209
100k
C238
10
R212
1M
R210
1M
D27
MA111
R211
100k
VCON
GND
X2
CR-601
VCC
OUT
1
2
4
3
R267
270k
R186
100k
C206
10
C212
4.7
R162
10
C211
0.1
C215
8p
R184
2.7k
C214
8p
C208
0.0047
C209
0.001
C210
2.2
L34
18nH
R191
56
C213
0.001
20
19
18
17
16
15
14
13
12
11
GND1
IN2
VCC2
XB
XI
XO
GND2
CP2
FI2
FO2
1
2
3
4
5
6
7
8
9
10
VCC1
IN1
ENB
CLK
DATA
T1
LOK
CP1
FI1
FO1
IC10
µPD3140GS
C318
10p
C205
0.001
C198
10
R178
100k
C216 22p
R188 1k
R189 1k
R190 1k
PLST
SCK
SO
UNLK
R187 1k
C217 22p
C218 22p
C219 0.001
C207
470p
C316
47p
C299
47p
LVIN
R185
100
R177
68k
CP1
C200
0.001
Q33
2SK880
Q40
2SJ144
C199
0.001
R175
10k
R176
1M
R181
1k
C204
0.47
Q34
2SK536
C203
0.47
R179
1k
R180
10k
C201
0.1
C202
0.022
R174
470
J6
HV
GND
HORN
GND
AFO
GND
DISC
GND
IN
GND
PTT
J5
HV
DIM
C233
0.001
C235 0.001
AFO
C289 0.001
C288 0.001
C287 47p
C234 0.001
DIMIN
HORNO
Q38
DTC144EU
Q39
DTC144EU
R207
1k
C237
1
EXPTT
DET
R257
47
R208
10k C236 0.1
IC4b
W10
W12
W11
SIGOUT
+
-
+
-
+
-
+
-
C76
0.1
11
R19 10
R17 100k
C30
0.001
C317
47p
R16 47k
Q16
DTC144EU
C283
470p
IC6b
NJM2904M
8V
AFREF
R95
47K
C330
47P
R151
180k( )
220k( )
J3
to Front unit
J2
Through
W3 of front unit
C226
0.01
C331
470P
R35
120K
FI1b
FI1a
TX:0V
RX:6.6V
C94
6p( -ML)
4p( -MH)
3p( L, -ML)
5p( -MH)
1p( -H)
C14
5P( )
4P( -L,ML)
P ( -MH)
C9
C2
C1
7p(L/ML)
6p( -MH/H)
5p( -MH)
CHASSIS
( only)
R277 470
( -L/ML/MH only)
P
6p( / -H)
7p( -L,M)
22( -H only)
33(Other )
39( -L only)
27(Other )
( only)
R68
2.2k
T4
3.3k( -ML only)
3.9k(Other )
2.7k( -ML only)
3.3k(Other )
10( )
47( )
1p(MH only)
3.5p(H only)
( only)
0.001
( only)
8V
Wide:oV
Narrow:4.8V
IC7a
NJM2904M
to
DC FAN
to
Optional
OPC-617
J1
P
L
P
L
C38
2.5µ( )
1.5p(ML/MH)
0.5p(H)
L
2.5p(H only)
4p(Other)
0.75p(H only)
1p(Other)
P
L
L
2P( -H only)
8p(Other)
Y655LY-02M=P3
( -H only)
Y655-03K
(Other)
L
L
3p( -LML)
4p( -MH, -ML/MH)
6p( -L)
5p( -H)
P
P
L
L
L
L
L
P
P
L
PL
L
P
L
P
P
L
LA382( -H only)
LA232(Other)
L
LA-382( -H only)
LA-232(Other)
L
SC-1322( -L)
SC-1323(Other )
SC-1236( -L)
SC-1237( -ML)
SC-1325( -MH)
SC-1326( -H)
P
P
L
L
L
L
P
L
P
L
8p( -MH,other )
7p(Other , -H)
PL
PL
P
P
L
L
LP
P
39( -L only)
27( -H only)
33(Other)
P
L
7p( )
8p( -H)
10p(Other)
L
P
7p( )
5p( -H)
6p(Other )
P
L
L
L
18nH( -H
only)
22nH(Other)
L
L
L
100( )
10 ( )
P
L
L
L
L
P
R119
Note
-L :PMR L-band
-L :LMR L-bandP
L
L
P -ML:PMR ML-band
-ML:LMR ML-band
-ML:PMR MH-band -MH:LMR MH-band
L
P
-H :LMR H-band
L
L
P
L
L
L
L
L
L
L
NOTE: All 7640 Models are the LMR (U.S.A.) type.
7.9V
13.6V
4.5V
5.0V
TX:7.9V
RX:0V
TX:8.5V
RX:0V
TX:0V
RX:7.9V
TX:0V
RX:8.5V
TX:4.7V
RX:0V
13.6V
3.4V
2.4V
2.4V
5.0V
6.7V
13.6V
1.1V
3.9V
7.8V
3.9V
3.9V
MEASUREMENT CONDITIONS
DIGITAL MULTIMETER
INTERNAL RESISTANCE:50kΩ/V
IC-F420(LMR):f=460.1MHz,TX POWER=35W
IC-F410(PMR):f=455.1MHz,TX POWER=25W
VOLTAGES INDICATED WITH(*)MARK ARE
CHANGED WITH THE FREGUENCY AND POWER.
1.8V
1.8V
Wide:5.1V
Narrow:0V
WIDE:0V
NAR:4.9V
5.0V
Wide:0.6V
Narrow:0V
TX:0V
RX:0.7V
TX:0V
RX:7.3V
0V
RX:APPROX.
+3VdBm
0V
TX:0V
RX:7.9V
RX:2.3V
RX:2.2V
TX:0V
RX:0.9V
TX:0V
RX:7.7V
0V
TX:0V
RX:2.5V
RX:2.3V
TX:0.7V
RX:0V
(*)TX:3.2V
RX:2.8V
(*)TX:11.5V
RX:13.3V
(*)TX:2.1V
RX:0V
(*)TX:2.8V
RX:2.7V
(*)TX:0V
RX:2.9V
(*)TX:2.9V
RX:0V
6.8V
6.8V
0.7V
0.7V
2.8V
2.5V
6.7V
7.9V
(*)TX:9.1V
RX:0V
TX:8.9V
RX:0V
TX:7.4V
RX:0V
TX:1.7V
RX:0V
TX:2.3V
RX:0V
TX:7.6V
RX:0V
TX:Approx.
+7dBm
2.1V
7.6V
(*)TX:3.3V
RX:3.2V
(*)TX:2.8V
RX:2.7V
1.0V
1.9V
0.34V
p-p
2.5V
0V
5.0V
5.0V
2.4V
2.2V
WIDE:0V
NAR:0.6V
5.1V
0V
0V
TX:4.7V
RX:0V
TX:0V
RX:5.1V
RX MUTE:0V
4.9V
5.1V
RX MUTE:
5.1V
2.0V
2.0V
2.0V
TX:2.0V
RX:5.0V
TX:2.0V
RX:3.8V
2.4V
2.4V
2.4V
2.4V
2.4V
2.4V
2.4V
2.4V
2.4V
2.4V
TX:0V
RX:7.8V
TX:4.7V
RX:0V
DTMF
3.5V
p-p
5 TONE
3.2V
p-p
CTCSS
0.7V
p-p
15.3MHz
3.1V
TX:0V
RX:0.7V
RX:2.9V
2.4V
5.1V
3.4V
6.4v
DTCS
0.85V
p-p
(PMR only)
(LMR only)