FM Systems VIP472 User manual

VIP472
VIDEO LINE INSERTION
PROCESSOR
INSTRUCTION BOOK
IB 6429-01

VIP472
TABLE OF CONTENTS
PAGE
SHIPPING INSPECTION 1
HOW AND WHERE TO MOUNT THE VIP472 1
MODUAL CARD INSTALLATION 1-2
HOW TO CABLE THE VIP472 2
POWER SUPPLY INSTALLATION 3
SET-UP OF THE VIP472 3
OPERATION 3
FRONT PANEL CONTROLS AND INDICATORS 3-4
BY-PASS MODES OF OPERATION 4
CARE AND MAINTENANCE OF THE VIDEO MASTER 4
LINE SELECTOR TABLE 6-6

SHIPPING INSPECTION
Remove from shipping container and inspect for shipping damage.
The VIP472 is a Slide in Card that fits into the RMS-400 Mainframe and
Power Supply. The card is supplied with a retaining screw (attached to
the PC Board), a Front Label Designator and this instruction book. If
an RMS-400 Mainframe and Power Supply has been purchased with Card, the
Card will be installed into the Mainframe with labels attached and the
retaining screw engaged and locked.
HOW AND WHERE TO MOUNT THE VIDEO INSERTION PROCESSOR
Select a position for the RMS-400 that is near the equipment you
need to interface. The placement is not critical. Then install the
VIP472 PC CARD in any unused CARD SLOT that is empty. Follow the
instructions for card installation, be sure not to apply excessive
force to the card during installation. Caution: position all switches
in the center position before sliding the card into the mainframe to
prevent the switch from hitting the front label and being damaged by
excessive force. See the “LINE SELECTION” switch setting table and set
the video line you want to insert your video test signals onto.
MODULE CARD INSTALLATION
1. Select one of the un-used nine positions to be occupied by the new
circuit board module.
2. Remove the blank label in that position by peeling it off of the
front panel. Peel the label slowly to remove all of the label and
adhesive. Any remaining adhesive may be removed by rubbing the
surface with your thumb. WARNING: DO NOT USE SOLVENTS TO REMOVE
THE LABEL ADHESIVE. The solvent could damage the equipment cards
or cause a fire.
3. Peel the backing off of the new label and apply it to the front
panel of the RMS-400 rack in the position of the new card. Align
the new label with the screw head in the hole in the lower right
hand corner of the label, then align the center thumbscrew with
the clearance hole in the front panel. This should cause the label
to be straight and vertical. When the label is in place press
firmly the secure the label.
4. Then remove the thumb-screw retainer from the product card, it is
located at the front of the card and is removed by rotating the
knob counter-clock-wise.
5. Select any and all product options on the specific card.
6. Next slide the card into the card guides at the rear of the RMS-
400. Be sure that the notch in the circuit card is facing forward
and down. Push the card all the way to the front of the rack until
it stops. DO NOT APPLY EXCESSIVE FORCE TO THE CARD.
7. Insert the thumb-screw that was removed in step 5 while
rotating it in a clock-wise direction. When it begins to thread
into the card, continue until it is finger tight. CAUTION TIGHT BY
HAND ONLY, DO NOT USE TOOLS TO TIGHTEN THE THUMB-SCREW. OVER
TIGHTENING WILL DAMAGE THE CIRCUIT CARD.
VIP472.ISB Page 1 of 6

8. Attach any cables or wires necessary for operation.
Most circuit board modules have several adjustments which are
carefully factory set with precision instruments for optimum
performance. Change only those which must be adjusted, some controls
when mis-adjusted produce little change under normal operating
conditions, but can seriously reduce the ability of the unit to
function correctly under other conditions which may be encountered.
Therefore, if you must adjust a control, place a mark on it before
moving it, so that it may be returned to its original setting with
reasonable accuracy.
HOW TO CABLE THE VIP472
Connect a BNC cable from your source video to the "PRIMARY VIDEO
INPUT" at the rear of the unit. The "PRIMARY VIDEO INPUT" is internally
terminated by a precision 75 Ohm termination to match standard video
cable.
Next connect a BNC cable from the "TEST SIG INPUT" connector to
your video test signal source. The “TEST SIG INPUT” is internally
terminated by a precision 75 Ohm termination to match standard video
cable.
Then connect the output BNC connector to your video load or the
device you wish input the video with the test signal inserted. There is
a secondary video output “DA output” at the rear of the unit if you
need a second feed or wish to have a monitor connected for observation.
Two prevent the inserted line from revolving, your test signal
generator must be locked to your video input. If your video sources are
already synchronized in-house then you are ready to operate the
equipment. If your video test generator is not synchronized with the
video source, then you must use the “SYNC OUT” connector to sync up
your video test generator. The “SYNC OUT” connector outputs a signal
that is locked to the input “PRIMARY VIDEO”. Select either the 1Vpp
video output or the 4 Vpp sync signal output by moving the internal
jumper at S3 to the sync type needed by your generator. Then connect a
BNC cable from the “SYNC OUT” connector to the “SYNC INPUT connector on
your video test generator.
If you wish to control line insertion at a location other than the
equipment rack, then connect a twisted pair wire from the “REMOTE
CONTROL” connector on the rear panel to an external switch. This
control is a self-powered TTL input. All that is needed is an external
switch connection.
An external TTL video lock output is provided if monitoring of the
video lock is required. Connect twisted pair wires to the screw
terminal at the rear that is marked “V LOCK OUTPUT TTL”. This signal is
grounded when video is locked and +5 VDC when video in not locked.
VIP472.ISB PAGE 2 of 6

POWER SUPPLY INSTALLATION
Power for the VIP472 is supplied by the RMS-400 Mainframe. It
supplies the card with +/- 12 VDC to power the card.
SET-UP OF THE VIP472
Select the mode of operation by moving the switch on the front
panel to one of three positions. See “Operation” in the next section.
OPERATION
The VIP472 is a line switcher that will insert any one video test
signal line onto your NTSC video path so that you can monitor the
transmission signal quality. This process allows the video test signal
to pass through all digital compression systems to verify that your
video is being delivered accurately without distortion.
Most digital transmission systems will not pass the vertical
interval. This system replaces the Vertical Interval Test Signals
“VITS” and Vertical Interval Reference Signals “VIRS” that were used to
monitor video quality, but are now lost due to digital compression.
This process momentarily inserts a video test signal onto a visual
picture line at the top or bottom of the screen where it is least
noticeable. The test signal is only on during the test and then turned
off for normal video operation. You may select any line of video for
test signal insertion by using a “dip” switch on the PC Card. SEE THE
LINE SELECTOR TABLE FOR SWITCH SETTING.
The unit has two BNC connector video inputs, one for the video and
the other for the video test signal generator. A BNC connector “SYNC”
output signal is provided to lock-up your test signal generator if
needed. A secondary video output BNC connector is also provided on the
main channel.
Line insertion is controlled by a front panel switch. This switch
allows you to turn the insertion “ON/OFF” and select “REMOTE”. The
“REMOTE” feature allows you to connect an external switch to the screw
terminal connector, to control the insertion. There is an LED on the
front panel to indicate video lock between main channel and the test
signal generator. The unit also has a TTL output to indicate the video
lock status remotely. In the event of a power failure the main video is
by-passed to the primary output.
FRONT PANEL CONTROLS AND INDICATORS
A green front panel LED "VIDEO LOCK” indicator tells you when your
video is locked to prevent line rolling. A PLL lock circuit on the
board controls the insertion and prevents insertion from occurring if
the two video sources are not locked together. I you wish to see the
effects of line rolling you can remove the S4 jumper on the pc card.
This will remove the PLL lock-out control and allow the inserted line
to roll across the screen. Remember to replace the jumper for normal
operation.
VIP472.ISB PAGE 3 of 6

The front panel three position switch is used to select the mode
of test signal insertion. The “OFF” position will not allow insertion
of the test signal under any circumstances. The “ON” position of the
switch will insert your selected line of test signals all of the time
regardless of the condition of the external “REMOTE CONTROL”.
The “REM” position of the switch will allow the control of insertion to
be operated by opening and closing the external switch connected to the
screw terminals marked “GND and INSERT”.
BY-PASS MODES OF OPERATION
The VIP472 has a power by-pass feature. If the power fails on the
PC card the “PRIMARY VIDEO INPUT” will be connected directly to the
“VIDEO OUTPUT” and the “SECONDARY VIDEO OUTPUT” will be shut off.
CARE AND MAINTENANCE OF THE VIDEO MASTER
Care should be taken not to subject the VIP472 to extreme
moisture or temperatures outside normal operating range. There are no
periodic maintenance adjustments to be made on the VIP472. If the
unit does not function properly it should be returned to the factory
for repair.
VIP472.ISB PAGE 4 OF 6

LINE SELECTOR TABLE
LINE SWITCH # LINE SWITCH # LINE SWITCH #
1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8
10 X X - - - - - - 67 - - X X X X - - 124 X – X – X X X -
11 - - X - - - - - 68 X – X X X X – - 125 - X X – X X X -
12 X – X - - - - - 69 - X X X X X - - 126 X X X – X X X -
13 - X X - - - - - 70 X X X X X X - - 127 - - - X X X X -
14 X X X - - - - - 71 - - - - - - X - 128 X - - X X X X -
15 - - - X - - - - 72 X – - - - - X - 129 - X – X X X X -
16 X - - X - - - - 73 - X - - - - X - 130 X X – X X X X -
17 - X – X - - - - 74 X X - - - - X - 131 - - X X X X X -
18 X X – X - - - - 75 - - X - - - X - 132 X – X X X X X -
19 - - X X - - - - 76 X – X - - - X - 133 - X X X X X X -
20 X - X X - - - - 77 - X X - - - X - 134 X X X X X X X -
21 - X X X - - - - [CC] 78 X X X - - - X - 135 - - - - - - - X
22 X X X X - - - - 79 - - - X - - X - 136 X – - - - - - X
23 - - - - X - - - 80 X - - X - - X - 137 - X - - - - - X
24 X - - - X - - - 81 - X X - - X - 138 X X - - - - - X
25 - X - - X - - - 82 X X X - - X - 139 - - X - - - - X
26 X X - - X - - - 83 - - X X - - X - 140 X - X - - - - X
27 - - X – X - - - 84 X – X X - - X - 141 - X X - - - - X
28 X - X – X - - - 85 - X X X - - X - 142 X X X - - - - X
29 - X X – X - - - 86 X X X X - - X - 143 - - - X - - - X
30 X X X – X - - - 87 - - - - X – X - 144 X – - X - - - X
31 - - - X X - - - 88 X - - - X – X - 145 - X – X - - - X
32 X - - X X - - - 89 - X - - X – X - 146 X X – X - - - X
33 - X - X X - - - 90 X X - - X – X - 147 - - X X - - - X
34 X X - X X - - - 91 - - X - X – X - 148 X – X X - - - X
35 - - X X X - - - 92 X – X - X – X - 149 - X X X - - - X
36 X - X X X - - - 93 - X X - X – X - 150 X X X X - - - X
37 - X X X X - - - 94 X X X - X – X - 151 - - - - X - - X
38 X X X X X - - - 95 - - - X X – X - 152 X - - - X - - X
39 - - - - - X - - 96 X - - X X – X - 153 - X - - X - - X
40 X - - - - X - - 97 - X - X X – X - 154 X X - - X - - X
41 - X - - - X - - 98 X X – X X – X - 155 - - X – X - - X
42 X X - - - X - - 99 - - X X X – X - 156 X – X – X - - X
43 - - X - - X - - 100 X – X X X – X - 157 - X X – X - - X
44 X - X - - X - - 101 - X X X X – X - 158 X X X – X - - X
45 - X X - - X - - 102 X X X X X – X - 159 - - - X X - - X
46 X X X - - X - - 103 - - - - - X X - 160 X – - X X - - X
47 - - - X – X - - 104 X - - - - X X - 161 - X – X X - - X
48 X - - X – X - - 105 - X - - - X X - 162 X X – X X - - X
49 - X – X – X - - 106 X X - - - X X - 163 - - X X X - - X
50 X X - X – X - - 107 - - X - - X X - 164 X - X X X - - X
51 - - X X – X - - 108 X – X - - X X - 165 - X X X X - - X
52 X - X X – X - - 109 - X X - - X X - 166 X X X X X - - X
53 - X X X – X - - 110 X X X - - X X - 167 - - - - - X - X
54 X X X X – X - - 111 - - - X – X X - 168 X – - - - X - X
55 - - - - X X - - 112 X - - X – X X - 169 - X - - - X - X
56 X - - - X X - - 113 - X - X – X X - 170 X X - - - X - X
57 X - - X X - - 114 X X - X – X X - 171 - - X - - X - X
58 X X - - X X - - 115 - - X X – X X - 172 X – X - - X - X
59 - - X - X X - - 116 X – X X – X X - 173 - X X - - X - X
60 X - X - X X - - 117 - X X X – X X - 174 X X X - - X - X
61 X X - X X - - 118 X X X X – X X - 175 - - - X – X - X
62 X X X - X X - - 119 - - - - X X X - 176 X - - X – X - X
63 - - - X X X - - 120 X - - - X X X - 177 - X – X – X - X
64 X - - X X X - - 121 - X - - X X X - 178 X X – X – X - X
65 - X - X X X - - 122 X X - - X X X - 179 - - X X – X - X
66 X X - X X X - - 123 - - X - X X X - 180 X – X X – X – X

LINE SELECTOR TABLE (cont.)
LINE SWITCH # LINE SWITCH # LINE SWITCH #
1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8
181 - X X X – X – X 221 - X X – X – X X 261 - X X X X X X X
182 X X X X – X – X 222 X X X – X – X X 262 X X X X X X X X
183 - - - - X X – X 223 - - - X X – X X
184 X - - - X X – X 224 X - - X X – X X
185 - X - - X X – X 225 - X – X X – X X
186 X X - - X X – X 226 X X – X X – X X
187 - - X – X X – X 227 - - X X X – X X
188 X – X – X X – X 228 X – X X X – X X
189 - X X – X X – X 229 - X X X X – X X
190 X X X – X X – X 230 X X X X X – X X
191 - - - X X X – X 231 - - - - - X X X
192 X - - X X X – X 232 X - - - - X X X
193 - X – X X X – X 233 - X - - - X X X
194 X X – X X X – X 234 X X - - - X X X
195 - - X X X X – X 235 - - X – - X X X
196 X – X X X X – X 236 X – X – - X X X
197 - X X X X X – X 237 - X X – - X X X
198 X X X X X X – X 238 X X X – - X X X
199 - - - - - - X X 239 - - - X - X X X
200 X - - - - - X X 240 X - - X - X X X
201 - X - - - - X X 241 - X – X - X X X
202 X X - - - - X X 242 X X – X - X X X
203 - - X - - - X X 243 - - X X - X X X
204 X – X - - - X X 244 X – X X - X X X
205 - X X - - - X X 245 - X X X - X X X
206 X X X - - - X X 246 X X X X - X X X
207 - - - X - - X X 247 - - - - X X X X
208 X - - X - - X X 248 X - - - X X X X
209 - X – X - - X X 249 - X - - X X X X
210 X X – X - - X X 250 X X - - X X X X
211 - - X X - - X X 251 - - X – X X X X
212 X – X X - - X X 252 X – X – X X X X
213 - X X X - - X X 253 - X X - X X X X
214 X X X X - - X X 254 X X X – X X X X
215 - - - - X – X X 255 - - - X X X X X
216 X - - - X – X X 256 X - - X X X X X
217 - X - - X – X X 257 - X – X X X X X
218 X X - - X – X X 258 X X – X X X X X
219 - - X – X – X X 259 - - X X X X X X
220 X – X – X – X X 260 X – X X X X X X
VIP472.ISB PAGE 6 of 6