6-11
July 2000
Part No. 001-2000-720
CVR INTERFACE BOARD SCHEMATIC (2 OF 2)
FIGURE 6-4
FOLDOUT
+
U208A
2904
2
3
1
R243
10k
R244
7.5k
+9V
-5V
R242
47k
R240
100k
C234
.022
C235
.01
R241
100k
R245
56k
C236
.047
R246
56k
+
U208B
2904
7
6
5
C237
.0068
R247
51k
R248
100k
+
U210A
3403
1
2
3
R249
270k
+
U210C
3403
8
9
10
CR206
CR207
+
U210B
3403
7
6
5
CR205
R252
47k
-5V
+ C238
15
-5V
+ C239
15
R250
100k
R251
100k
+
U210D
3403
C240
.001
12
13
14
R253
10k
COMPARATOR
DC RESTORATION
DATA AMPLIFIER
RECEIVE DATA FILTER
CR208
R255
5.1k
+5V
R256
1k
R254
18k
10
9
11
U217C
DATA TO A-D
U114-13 (1)
2
3
1
U115-13 (1)
U217A
FSK TO AUDIO GATE
+
U205A
33178
2
3
1
R221
5.1k
C225
100pF
R220
150k
C224
100pF
C226
100pF
R219
18k
C227
.001
R222
100k
+
U205B
33178
4
6
5
R223
47k
NOISE AMPLIFIER
SQ ADJ
HIGH-PASS FILTER > 30 kHz
C228
.002
R224
1.5k
C229
.01
+
U207A
3403
1
2
3
R225
6.2k
R226
12k
RT201
10k
C230
.01
CR201
CR202
R228
10k
R229
47k
C231
.1
-5V
R227
10k
+
U207B
3403
7
6
5
R230
47k
C232
.1
+
U207C
3403
8
9
10
R232
1M
R231
330k
R233
7.5k
CR204
R258
5.1k
+5V
R259
1k
R257
10k
R234
100k
+
C233
1
-5V
R235
100k
+
U207D
3403
14
12
13
R236
470k
R237
10k
CR203
4.3V
R238
3.9k
R239
1k
+5V
14
15
16
U115-17 (1)
RX SQ ACT
U211D
RX SQ
ACTIVE GATE
R218
10k
U115-18 (1)
NORMAL RX
TIMING BUFFER
SCHMITT TRIGGER
NOISE RECTIFIER
+
U201A
2904
C201
.1
R201
29.4k
C202
.0022
R202
54.9k
R203
1M
C203
.001
3
2
1
R204
147k
R205
69.8k
C206
100pF
+
U201B
2904
5
6
7
C205
.001
C204
820pF
R206
43k
R207
100k
NARROW BAND
AUDIO ADJ
+
U203A
2904
3
2
1
R208
390k
C207
68pF
C301
.1
+
U204B
2904
5
6
7
+1.25V
R292
6.2k
R293
1k
+9V
R209
15k
C208
.033
C209
.22
C210
.033
R210
100
C211
.068
R211
1.07M
+
U203B
3403
5
6
7
C213
.0022
C212
.022
C214
.0047
C215
.047
R212
110
C216
.1
R213
1.07M
+
U203C
3403
10
9
8
C218
.0068
C217
.022
R215
1.07M
C221
.022
C222
.022
C219
.068
R214
110
C220
.1
R216
18.2k
+
U203D
3403
12
13
14
+
U204A
33178
3
2
1
R217
47k
C223
.01
DE-EMPHASIS
HIGH-PASS FILTER > 300 Hz
LOW -PASS FILTER < 3 kHz
7
8
9
11
6
10
U211B
NORMAL
RX GATE
U211C
RECEIVE
MUTE GATE
U115-16 (1)
RX OPTION
R260
10k
+5V
U212C
9
10
11
1
2
7
6
8
3
U211A
RECEIVE
OPTION GATE
U212B
WO 201
WO202
OPTION
14
15
16
U212D
LOCAL AUDIO
MUTE GATE
U115-16 (1)
R261
47k
R262
10k
1k
+
C242
10
1
5
LOCAL AUDIO
ON/OFF/VOL
+15V
+ C241
470
+
C245
15
C246
.1
R264
39
C244
.1
C243
.01
+
C249
470
4
2
+
C248
470
R267
220
R266
2.2
R265
1
C247
.1
R268
51
J204
EXT SPKR
LOCAL AUDIO
OUTPUT
U213
TDA2003
7 RDM AUDIO
J106
U115-19 (1)
RX MUTE
TP
J210
R270
10k
R271
100k
+
U215A
33178
1
2
3
R272
2.2k
C250
360pF
R273
100k
+
U215B
33178
7
6
5
C251
300pF
R276
300
R274
100k
+
C253
4.7
R275
300
+
C252
4.7
3
4
2
1
T201
600
1
2
J205
+
C304
10
1
2
J206
+
C305
10
RV201
RV202
RV203
FSK AUDIO -
FSK AUDIO +
U114-12 (1)
U217B
LOGIC SQ A-D
7
6
8
A-D LEVEL
J202
A-D LEVEL
J203
TP
J211
J212
TP
J207
J208
U125-8 (1)
RX DATA
TP
J209
RX WBAND 9
J201
RSSI 7
HS LK RX 19
SYN LK RX 14
RX INJ 13
R284
10k
R285
43k
U219A
14050
3
2
R286
10k
U219B
14050
5
4
R287
43k
R288
10k
U220
HEF405TBTD
1
13
14
15
12
Y4
Y0
Y1
Y2
Y3
R289
22k
R290
22k
R291
22k
9
10
11
6
3
A2
A1
A0
E
Z
U116-17 (1) RF DATA C
U116-18 (1) RF DATA B
U116-19 (1) RF DATA A
U117-18 (1) RF MUX2 INH
U105-71 (1) A-D LEVEL
3
2
1
U212A
RECEIVE
AUDIO GATE
U115-14 (1)
RX AUDIO GATE
R269
0
J101-9 (1)
J106-6 (1)
J107-1 (1)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
WO203
3 AUDIO SQUELCH
J214
+15V 1
+15V
R298
47k
5 ALERT TONE
IN +
Vsup
OUT
IN -
GND
3
J101-5 (1)
J101-6 (1)
MAIN AUDIO TO RVM
7 RX AUDIO GATE
2
+9V
6 RX TONE
11
12
2
3
1
J213
U221
LM78L12ACM
8
1
2,3,6,7
C271
.001
+ C270
4.7
+12V
SOURCE
C267
.01
+
C266
15
C113
.01
C114
.01
C115
.01
C117
.01
C121
.01
C122
.01
C123
.01
C124
.01
C125
.01
C126
.01
C127
.01
C128
.01
C288
.01
C289
.01
C290
.01
C291
.01
C292
.01
C293
.01
C117
.01
C118
.01
C119
.01
C120
.01
+ C287
47
+ C129
10
+ C130
10
C296
.01
C297
.01
+ C264
15
C298
.01
C299
.01
C300
.01
C281
.01
+
C280
47
C282
.01
C283
.01
C284
.01
C285
.01
C286
.01
C302
.01
C303
.01
C268
.001
+ C269
1.5
C263
.01
+ C295
47
Z201
78L12
3
1
2
+15V
SOURCE
C260
.01
C261
.01
+15V
F201
1A
+
C262
15
1
U222
MAX735EPA
6
7
C278
.1
+
C277
47
-5V
SOURCE
R294
130k
R295
300k
+ C272
15
8
2
3
+5V
SHDN
V+
VREF
SS
LX
CR209
L201
5
V OUT
L202
+
C279
47
+ C131
10
C136
.01
C137
.01
C134
.01
C135
.01
C133
.01
+ C274
1.5
+ C275
15
C276
.1
U100
LM7L12
1
2
2,3,6,7
+ C118
1
+12V
+15V
C109
1.5
R124
10k
+
FLASH
SOURCE
Содержание CONVENTIONAL VOTING RECEIVER
Страница 2: ... 2 February 1996 Part No 001 3039 505 ...
Страница 4: ... 4 February 1996 Part No 001 3039 505 ...
Страница 16: ...INTRODUCTION 1 6 July 2000 Part No 001 2000 720 ...
Страница 42: ...2 26 July 2000 Part No 001 2000 720 ...
Страница 64: ...UHF RECEIVER 3 22 July 2000 Part No 001 2000 720 ...
Страница 68: ...3 36 July 2000 Part No 001 2000 720 ...
Страница 86: ...800 MHz RECEIVER 4 18 July 2000 Part No 001 2000 720 ...
Страница 90: ...4 22 July 2000 Part No 001 2000 720 ...
Страница 112: ...5 22 July 2000 Part No 001 2000 720 ...
Страница 118: ...INTERFACE BOARD 6 6 July 2000 Part No 001 2000 720 ...
Страница 121: ...INTERFACE BOARD 6 9 July 2000 Part No 001 2000 720 ...
Страница 122: ...INTERFACE BOARD 6 10 July 2000 Part No 001 2000 720 Figure 6 3 RDM INTERFACE BOARD SCHEMATIC 1 OF 2 ...
Страница 123: ...INTERFACE BOARD 6 11 July 2000 Part No 001 2000 720 Figure 6 4 RDM INTERFACE BOARD SCHEMATIC 2 OF 2 ...
Страница 124: ...INTERFACE BOARD 6 12 July 2000 Part No 001 2000 720 ...
Страница 128: ...6 12 July 2000 Part No 001 2000 720 ...
Страница 130: ...6 2 July 2000 Part No 001 2000 720 ...
Страница 134: ...POWER SUPPLIES 8 4 July 2000 Part No 001 2000 720 ...
Страница 146: ...800 MHz RECEIVER CHANNEL FREQUENCY CHART A 12 July 2000 Part No 001 2000 720 ...