Microframe Corporation 190 User manual

Microframe Corporation
Model 190
TV Interface
Operating Manual A0190-7010
*A0190-7010*

SERIES 190
INSTALLATION & SPECIFICATION GUIDE
ITEM NO: A0190-7010
REVISION DATE: 01/03
Microframe Corporation
604 S. 12th Street
Broken Arrow, OK 74012
Tel: [phone]
Toll Free: 1-800-635-3811
Website: www.microframecorp.com
E-mail: [email protected]

Limited Warranty Agreement
Your Microframe System is warranted against failure
due to defects in workmanship or material for a period
of one (1) year from the date of purchase. Microframe
Corporation will repair or replace any defective unit.
Obvious abuse or mishandling of the unit is NOT covered
by this warranty.
Merchandise Return
If your Unit does not work satisfactorily, please give
us a call. We may be able to clear up the problem by
phone. If it becomes necessary to return your Unit to
the factory, please observe the following.
1. Place Unit in a sturdy box with sufficient packing
material.
2. If requested, include the power supply. It is not
necessary to return the cable and connectors unless they
are the problem.
3. Return the system insured and prepaid since we
are not responsible for shipping damages and losses on
returned Units.
Warranty Service
For warranty service, please contact Microframe at
1-800-635-3811. A technician will gladly assist you.
Assistance
For any product assistance or maintenance help,
contact Microframe by either calling 1-800-635-3811 or
emailing us at [email protected].
Safety
Do not install substitute parts or perform any modi-
fication to the product without first contacting Micro-
frame.
Warning
All power transformers, line cords, and electrical
equipment should be kept out of the reach of children
and away from water. (If you are installing cable in an air
plenum area, such as a drop ceiling used for air return,
you must use plenum-rated cable. The cable supplied from
Microframe is rated CL2 and is approved for installation
everywhere indoors except plenum areas.)
Life Support Policy
Microframe'sproductsarenotauthorizedforuse
as components in life support devices or systems
without the express written approval of the presi-
dent of Microframe Corporation. As used herein:
1. Life support devices or systems are defined as sys-
tems which support or sustain life, and whose failure to
perform when properly used in accordance with instruc-
tions for use provided in the labeling, can be reasonably
expected to result in a significant injury to the user or
any one depending on the system.
2. A critical component is any component of a life sup-
port device or system whose failure to perform can be
reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
Disclaimer
We are constantly striving to improve our products.
Due to this, specifications are subject to change without
notice.
Microframe Corporation
P.O. Box 1700
Broken Arrow, OK 74013
1-800-635-3811

TABLE OF CONTENTS
MODEL 190 SPECIFICATIONS....................................................4
PRE-INSTALLATION PROCEDURES .........................................5
1.1 INSTRUCTIONS FOR USE.............................................5
1.2 TEST UNIT PROCESSOR ..............................................5
1.3 TEST UNIT VIDEO PROCESSOR ..................................5
1.4 TEST EXTERNAL VIDEO SIGNAL..................................5
1.4 TEST EXTERNAL BUTTON ............................................5
INSTALLATION PROCEDURES .................................................6
2.1 UNIT INSTALLATION ......................................................6
2.2 TV Signal .........................................................................6
2.3 Power/ Keypad signal......................................................6
2.4 Power-up .........................................................................6
2.5 Con!guration ...................................................................6
OPERATION .................................................................................6
3.1 Changing the Number Position ......................................6
3.2 Changing the Number Offset..........................................6
3.3 Status Lights....................................................................6
FAQ's ............................................................................................6
INTERFACE CONNECTION .........................................................7
VISUAL-PAGER CONNECTION DIAGRAM ................................8
DETAILED VISUAL-PAGER CONNECTION................................9
MULTIPLE KEYPAD CONNECTION...........................................10
TROUBLESHOOTING CHART ..................................................11

Microframe Corporation Series 190 Visual Pager
Support and Sales
800-635-3811
Microframe® Corpora-
tion
www.microframecorp.
com
Power On", "No Video In Connected"
External Dry Contact for Number Position
.052 x screen size
32 Vac
+2 Volts -3 Volts
Depends on Keypad Digits
24VAC .3A supplied by keypad or external Trans-
former which requires 115 Volts AC @ 20va
.0.75 lb (0.4 kg) with transformer 2.25 lb (1.0 kg)
Microframe®Model 190 Interface
Features
The Model 190 Interface overlays numbers onto a
video signal. It operates with the 904 or 906 Keypads.
The Interface accepts up to six digit numbers from the
keypads and displays them on a TV. The Model 190
Interface has optional Ethernet or RS232 interfaces. A
remote push button is available to move the displaying
numbers to different corners.
Operation
Once a number is entered into the Keypad, the number
is sent immediately both to the Display and the TV.
Local LED's ....................................."
Push Button......................................
Number Height .................................
Max Inupt Voltage on Keypad Input..
Max Input on Video IN......................
Maximum Number of Digits ............
Power Input Requirements...............
Weight ............................................
Model 190 Speci!cations
MODEL 190 SPECIFICATIONS
Interface
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8.00 
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4.25
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1.50
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REMOTE POSITION  BUTTON
NO CONNECTION
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C O R P O R A T I O N
M I C R O F R A M E
POWER
VIDEO
IN

OUT
MODE
KEYPAD INPUT POWER / SIGNAL
 NOTICE
Do not connect keypad to  VIDEO or damage will occur


SETUP
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NO CONNECTION
KEYPAD INPUT (SIG)
GROUND (GND)
-
+

Microframe Corporation Series 190 Visual Pager
PRE-INSTALLATION PROCEDURES
Before permanent installation, we recom-
mend that you test your entire system in one
room on a table or floor. This will be of great
benefit in troubleshooting if you should have
any problem after installing the system.
1.1 INSTRUCTIONS FOR USE
Onceconnected,theunitwilloperatewithout
furthur user intervention. It is recommended
to test each unit before permanent installation
by following the instructions below.
1.2 TEST UNIT PROCESSOR
Connect the power/signal cable from the
keypad to the power input on the top right
of the unit. Turn on the keypad power. The
power light on the model 190 should begin to
flash. The video light should be lit (to indicate
no video signal).
1.3 TEST UNIT VIDEO PROCESSOR
Connect a RCAcable from the video out jack
to the video in of a TV. You should see a blue
screen. Enter some numbers into the keypad.
The numbers should display in one corner of
the screen
1.4 TEST EXTERNAL VIDEO SIGNAL
Connect an unmodulated video signal to
the video in jack. If no video appears on the
TV, make sure a proper signal is supplied. If
video can be seen but the numbers jump on the
screen, the video signal is weak. Aweak signal
can be boosted by a video amplifier. Note a
typical vcr tends to boost and stabilize a weak
video signal.
1.4 TEST EXTERNAL BUTTON
Connect a doorbell button to the top two
inputs of the auxiliary input terminal (located
on the left of the unit). Pressing the button
should cause the number position to move to
one of the four corners of the screen.

Microframe Corporation Series 190 Visual Pager
2.1 UNIT INSTALLATION
2.2 TV Signal
Connect an RCA cable from the video out
connector, located on the bottom right of the
unit, to the video in of your TV. Use another
RCA cable to connect the video in connector,
located next to the video out connector, to
a standard unmodulated video signal. One
common example of this is the video output
of a VCR.
2.3 Power/ Keypad signal
The RCA cable from your keypad or display
carries both power and signals. It is imperative
that it is only connected to the power input.
Connection of the power cable to either video
input will likely destroy the unit. Connect the
9x0 power/signal cable to the power input on
the top right of the unit.
2.4 Power-up
Once power is applied to the unit (by turning
on the keypad driver) is will generate a video
output. If no signal is present at the video in-
put, it will generate a blue screen. Otherwise
it will pass the video through to the TV.
2.5 Con!guration
Themodebuttonallowstheusertoadjustthe
horizontal and vertical offset of the numbers on
the screen. This is done by pressing the mode
button, then using the plus and minus buttons
to adjust the setting. When done press the mode
button until the display is cleared.
INSTALLATION PRO-
CEDURES
OPERATION
3.1 Changing the Number Position
As a convenience to the viewer, an auxiliary input
button is provided. This allows the viewer to move the
number position to any of the four corners of the screen.
Thus if the number is covering a football score, it can
be moved to another part of the screen by pressing the
included button. Using additional cable, this button can
be run to a convenient location in the establishment.
3.2 Changing the Number Offset
The distance of the number from the edge of the screen
can be adjusted using the mode button. Press the mode
button once to activate the horizontal position adjust-
ment. Use the plus '+' and minus '-' buttons to adjust
the position. Press the mode button again to adjust the
vertical position. Press the mode button a third time to
return to normal operation.
3.3 Status Lights
There are two lights visible on the top of the case.
The video signal indicator lights when there is no video
signal detected. The power light flashes under normal
operation.
FAQ's
Q: Why can't I use just one unit for all my TV's?
A: The Model 190 does not have a built in tuner. It
requires an unmodulated video signal, such as the video
out from a VCR. Since the video signal is tuned to one
channel before being fed to the unit, it can only operate
on that particular video feed. Thus, a unit is required
for every video feed to a TV or bank of TV's.

Microframe Corporation Series 190 Visual Pager
INTERFACE CONNECTION
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ENTER  0
DELETE
1 3
5 6
7 8 9
To ENTER a paging number, type its digits (press
DELETE if an error is made). Then press ENTER.
A Blinking light indicates a number is being entered.
To DELETE a paging number, press DELETE when the 
number is being displayed.
Visual-Pager Series 900
2
4
Model 904
Keypad


Receiver

Model 930
Remote Displays
731
731
Remote Number
Position Button
Television Monitors


Keypad Only
DO NOT CONNECT TO VIDEO
Model 190
Video Interface

Video
Video
Video
NO VIDEO
REMOTE POSITION 
BUTTON
NO
CONNECTION
Model 190
Interface
Broken Arro w, OK 74011
1-800-635-3811
C O R P O R A T I O N
M I C R O F R A M E
POWER
VIDEO
IN

OUT
MODE
KEYPAD INPUT
POWER / SIGNAL

NOTICE
Do not connect keypad to 
VIDEO or damage will occur


SETUP

NO
CONNECTION
KEYPAD INPUT
(SIG)
GROUND
(GND)
-
+

Microframe Corporation Series 190 Visual Pager
VISUAL-PAGER CONNECTION DIAGRAM
Using 16 or 18 AWG Paired Wire
The VISUAL-PAGER may be connected with common
16 or 18 AWG paired wire utilizing the terminal blocks
located at the back of the remote displays and under
the small slide-on cover of the Model 904 Keypad.
NOTE: THE MODEL 920 SIGNAL AND
GROUND
CONNECTIONS ARE REVERSED FROM THE

Microframe Corporation Series 190 Visual Pager
DETAILED VISUAL-PAGER CONNECTION
STEP 1:
Remove slide-on cover.
STEP 3:
Insert Black Wire in one of the
terminals marked GND.
Insert Red Wire in one of the
terminals marked SIG.
Tighten terminal screws using a
1/8" slotted screwdriver.
STEP 4 (If required):
If a second set of wires are
required at the Keypad,
repeat Step 3 being careful
not to reverse the SIG and
GND connections.
STEP 2:
Remove 1.5" insulation from cable
jacket and separate wires.
Strip 1/4" insulation from each wire
and pre-form wires as shown.
STEP 5:
Install slide-on cover being careful
to !rst form wires so the Ty-wrap is
inside the case as shown. The slide-
on cover has a notch for the wires to

Microframe Corporation Series 190 Visual Pager
Model 904 Keypads may be connected at any point along the signal cable. The 900 Series VISUAL-PAGER will work
as long as one of the Model 904 Keypads is turned on. Other Model 904 Keypads may be turned on at any time; how-
ever, they should not be turned OFF as long as numbers are being displayed. (Refer to the Maximum Cable Length
Chart for proper cable selection.) The system may be connected in many other con!gurations provided they are all
hooked together and the SIGNAL/ GROUND polarity is maintained (see Visual-Pager Connection Diagrams).
MULTIPLE KEYPAD CONNECTION
You may connect your second Keypad as shown in the examples below:

Microframe Corporation Series 190 Visual Pager
TROUBLESHOOTING CHART
SYMPTOM POSSIBLE CAUSE CURE
The unit's power and
video LED's don't light.
Keypad shows numbers,
but no numbers show on
the monitor. The unit's
power light is #ashing.
Numbers are visible on
the display, but no video.
The video LED is lit on
the unit.
Numbers jitter on screen
when video is used.
Unit is not connected
to power/signal cable of
keypad.
Monitor's video signal not
connected properly or not
set to video input.
There is no video to the
unit or the video format is
invalid.
Video signal is weak or
unstable.
All TVs overscan to some
degree.
Check to make sure a cable is
connected from the keypad to the
power input of the unit. Turn keypad
power on.
Check connections from unit's
video out to the monitor. Make
sure the display is set to the video
input used.
Check connections to the video in-
put of the unit. The video light will go
out when a video signal is detected.
Video should be unmodulated; i.e.,
video out of a VCR.
Shorten video cable runs. Use a
video ampli!er.
Adjust the number position using
the mode, '+' and '-' buttons. See