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Description
1N4148
1N4001
2N3904
SPDT Relay
Red LED
Pushbutton
Toggle
10 pf
.0047 uf
.1 uf
1.0 uf, 25 or 50v
10 uf, 25 or 50v
47 uf, 25 or 50v
470 1/8w
1.0 K 1/8w
4.7 K 1/8w
10 K 1/8w
1.0 M 1/8w
10 K Sip
100 K Sip
1.0 K Dip
10 K Dip
15 K Dip
100K Pot
8MHz
68HC11
X68C75
X25040
34064
7805
LM399
4051
MAX-4051
4503
TL084
3240
LCD
3 Pin header
10 Pin header
14 Pin header
2 Pin Screw Conn.
3 Pin Screw Conn.
Heat Sink
Shunt
Ribbon Conn.
PC Board
Bolt
Nut
Spacer

RVS-8 Parts List

Quantity
1
1
1
1
2
3
1
2
24
18
9
8
2
3
2
8
12
9
4
3
1
3
1
18
1
1
1
1
1
1
2
1
1
3
4
4
1
2
1
1
2
10
1
1
1
1
7
7
6

Name
D1
D2
Q1
K1
L1-2
SW1-3
SW4
C51, C52
C17-40
C1-8, C50, C53-54, C57-58, C100
C9-16, C49, C101-104
C41-48
C55, C56
R120, R131, R140
R126, R135
R25-32
R33-40, R122, R130, R132, R133
R49-56, R127
RS1, RS5, RS6, RS7  (103)
RS2, RS3, RS4  (104)
RP4  (102)
RP2, RP3, RP5  (103)
RP1  (153)
R17-24, R41-48, R125, R136
X1
U1
U2
U3
U4
U5
U6, U20
U8
U7
U9-11
U12-15
U16-19
LCD Module
J9, JP1
J6
J8
J1-2
J2-5
-
-
-
-
-
-
-

Содержание RVS-8

Страница 1: ...LDG Electronics 1445 Parran Road St Leonard MD 20685 Phone 410 586 2177 Fax 410 586 8475 e mail ldg radix net Web site www radix net ldg RVS 8 Repeater Voting System Assembly Manual Ver 2 1...

Страница 2: ...e it became apparent that component spacing was too tight and the PC board was expanded for ease of construction and use A larger LCD module is now provided We were able to find a source of larger bac...

Страница 3: ...lled RP1 5 For markings 103 means 10K and 104 means 100K Then the crystal Use a left over piece of resistor lead to tie it down with holes provided on either side of the crystal This will keep it from...

Страница 4: ...d Don t wear a wool sweater brush your feet across the carpet pet a cat then try to install the chips Reapply power The voltage check should stay the same and the current draw should be around 80 to 9...

Страница 5: ...ition one site two is in position two ect On power up site one will be chosen for the default The display is updated when a new site is chosen as the current voted A site can not be selected as the cu...

Страница 6: ...ber of hits on any channel is 100 Sites that are not selected at the end of a COR cycle are decremented by one For example if the current hits are site one 57 site two 28 site three 12 and site two is...

Страница 7: ...ber can be viewed with the Channel S N menu Each step of the hysteresis level is equal to 6 counts of the internal number A hysteresis value of 5 means that a new signal must be 30 counts 5 times 6 hi...

Страница 8: ...ing device will provide a low going voltage 0 0 to 4 5 volts when the channel is to be disabled and a high going voltage 6 5 to 20 volts when the channel is to be enabled The DIS Active State menu sho...

Страница 9: ...r channels will float to zero volts The software provides a special counting function that keeps track of the voted sites during a COR cycle Just before the COR cycle ends about 1 mSec the output sele...

Страница 10: ...for each site The calibration procedure described here will give you good performance while maintaining a minimum amount of time and test equipment required First transmit a 1000 Hz tone at 2 5 KHz d...

Страница 11: ...k If there is no clock this may also indicates that the code is not executing Look around the sockets and connections between U1 and U2 for problems If there is still no LCD data look at the data line...

Страница 12: ...kaging to return the unit to you Include a description of what problem you are having and a phone number you can be reached at in the evenings in case we have questions Repairs average about 3 to 6 we...

Страница 13: ...ftware The RS 232 interface is not used with this version of the software The MAX 232 chip socket or the 4 1 0 uF electrolytic caps are not provided We had originally planned to add software for RS 23...

Страница 14: ...ssor 0 V 0 V 0 V 0 V Test Point Aud 1 Test Point A D 1 Pin 2 of U11 Figure 1 Sample Waveforms for Alignment Audio In TP Aud 1 Pin 2 TP A D 1 1 KHz 2 V p p 1 V p p 0 1 V 3 KHz 2 V p p 1 V p p 2 0 V 5 K...

Страница 15: ...J8 LCD Interface J5 Audio In J4 COR IN J3 Disable In J6 Output Select J2 Audio COR Out J1 Power J6 Output Select Gnd 7 5 3 1 12 8 6 4 2 10mA 1 2 3 4 5 6 Gnd J7 User Interface Power LED COR LED Data S...

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Страница 19: ...n Screw Conn 3 Pin Screw Conn Heat Sink Shunt Ribbon Conn PC Board Bolt Nut Spacer RVS 8 Parts List Quantity 1 1 1 1 2 3 1 2 24 18 9 8 2 3 2 8 12 9 4 3 1 3 1 18 1 1 1 1 1 1 2 1 1 3 4 4 1 2 1 1 2 10 1...

Страница 20: ...or on the STRB line of the X68C75 chip U2 A 2 2K resistor is provided with the kit to be used here any value between 1 K and 100K would work The resistor goes between pin 37 of U2 to the grounded pin...

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