HR VHD-2 User manual

Model VHD-2
VGA to TV / HDTV Scan Converter
With
Composite, S-Video, and Component (YPbPr) Outputs
Linear Pan and Zoom
UMA1087
REV. 1.4

Model VHD-2
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TRADEMARKS USED IN THIS MANUAL
Hall Research, HR, and are trademarks of Hall Research, Inc. Apple
and Macintosh are registered trademarks of Apple Computer; Inc. IBM is a
registered trademark of International Business Machines Corporation.
Any other trademarks mentioned in this manual are acknowledged to be the
property of the trademark owners.
FEDERAL COMMUNICATIONS COMMISSION
AND CANADIAN DEPARTMENT OF COMMUNICATIONS
RADIO FREQUENCY INTERFERENCE STATEMENTS
This equipment generates, uses, and can radiate radio frequency energy and
if not installed and used properly, that is, in strict accordance with the
manufacturer’s instructions, may cause interference to radio
communication. It has been designed to comply with the limits for a Class
A computing device in accordance with the specifications in Subpart B of
Part 15 of FCC rules, which are intended to provide reasonable protection
against such interference when the equipment is operated in a commercial
environment. Operation of this equipment in a residential area is likely to
cause interference, in which case the user will be required to take whatever
measures may be necessary to correct the interference at his/her own
expense.
Changes or modifications not expressly approved by the party responsible
for compliance could void the user’s authority to operate the equipment.
This digital apparatus does not exceed the Class A limits for radio noise
emission from digital apparatus set out in the Radio Interference
Regulation of the Canadian Department of Communications.
Le présent appareil numérique n’émet pas de bruits radioélectriques
dépassant les limites applicables aux appareils numériques de la classe A
prescrites dans le Règlement sur le brouillage radioélectrique publié par le
ministère des Communications du Canada

VGA to TV & HDTV Scan Converter
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Table of Contents
Package Contents.......................................................................................... 3
Introduction .................................................................................................. 4
General.................................................................................................... 4
Supported Systems ............................................................................... 4
Features......................................................................................................... 5
VHD-2 Description....................................................................................... 6
Installation and Setup ................................................................................... 7
Accessories ................................................................................................... 8
Operation ...................................................................................................... 8
Main Menu .............................................................................................. 8
Remote Control........................................................................................... 11
Troubleshooting.......................................................................................... 13
Shipping and Packaging ..................................................................... 14
Specifications.............................................................................................. 15

Model VHD-2
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Package Contents
VHD-2 Scan Converter
Remote Control Unit
HD15 Male to Male (VGA) Cable
Composite Video Cable (Yellow RCA)
S-Video Cable
Y, Pb, Pr Cable
Switching Power Supply
Figure 1 Package Contents
Remote Control
VHD-2
Composite
&
S-Video
Cables
VGA input Cable
Power Adapter
Y
-
Pb
-
Pr Cable

VGA to TV & HDTV Scan Converter
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Introduction
General
The VHD-2 is a scan converter that converts computer VGA signals to TV
(NTSC and PAL) as well as HDTV Component video. It can produce in
real-time a clear and flicker-free TV image with 16.7 million-colors. It
accepts all PC resolutions up to 1600 x 1200. No software driver is
required. The pass-through VGA output allows the user to see the picture
on a local computer monitor as well as the TV screen.
Composite Video, S-Video, and Component Video outputs are provided for
achieving a sharp picture on any TV monitor.
The VHD-2 can output HDTV formats of 480i, 480p, 1080i, and 720p. It
comes with an IR remote that can be used to zoom and pan linearly to any
location on the screen. Furthermore, it can save up to 64 Zoom/Pan
locations for immediate recall making it ideal for computer training video
tape or DVD productions.
Incorporating the latest technologies in scan conversion, it samples the
input the signal from the PC at full resolution and uses advanced DSP
technology to produce the highest TV output format possible.
Supported Systems
•Supports IBM® compatible PCs and Laptop PCs (with VGA
output port)

Model VHD-2
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Features
•Real time PC to TV/HDTV Scan Converter
•Outputs HDTV resolutions to 1080i
•Supports Y Pb Pr (Component) video out to HDTV
•Converts computer image into NTSC and PAL TV
•Supports Composite (A/V) and S-Video out
•Accepts VGA input resolution from 640x480 up to 1920x1200 in 16.7
million-color depth
•Supports with IBM® compatible PCs and Laptop PCs (with VGA
output port)
•Plug-n-play (No software required!)
•Simultaneous display on PC Monitor and HDTV/TV
•Full function infrared remote control
•Full screen Underscan / Overscan
•9-level Adaptive Flicker Control adjustment
•Video Quality Enhancement
•Supports “Power-Off Pass-Through” function when system is off
(Between PC and VGA Monitor)
•Supports OSD (On Screen Display) function
•TV/HDTV Brightness, Contrast, and Sharpness control
•Horizontal and Vertical frequencies detection to adjust picture position
•Linear Zoom and Pan functions
•Saves settings during power-off
•64 Position Markers to save screen regions after Zooming and Panning
for quick recall
•1:1 A/D (Analog to Digital) frame rate Sampling

VGA to TV & HDTV Scan Converter
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VHD-2 Description
VGA IN.....................Video input from the PC video card
VGA OUT.................VGA pass through for a local PC monitor
S-VIDEO OUT.........S-Video output for TV’s equipped with S-Video
C.V. OUT..................Composite-Video output
DC IN........................Adapter input connector
POWER ....................This LED lights up when VHD-2 is powered up
MENU.......................Pops up the on screen display menu
NTSC/PAL ...............Used to toggle between NTSC and PAL output
HD Mode ..................Toggle between 1080i, 720p, 480p, or 480i HD
Figure 2 Description of VHD-2 parts
Menu: Increase (+)
Normal: Switch NTSC½¾PAL
VGA Video Input
VGA OutputPower Input
Composite
Output
S-Video
Output
Component
HDTV
Output
Power Button & Light
OSD Menu Mode
Menu: Select Item
Normal: Auto Adjust Picture
Menu: Decrease (-)
Normal: Switch to HDTV out

Model VHD-2
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Installation and Setup
1. Plug the power supply to the AC (110 or 220 VAC) line. Plug output of
the supply to the VHD-2.
2. Insert supplied button-type batteries in the remote control unit.
3. Using the supplied VGA input cable; tie the VGA IN connector of the
VHD-2 to the PC video card.
4. Optionally, plug a local VGA monitor or LCD at the VGA OUT of the
VHD-2.
5. If the TV has an S-Video input connector, connect the S-VIDEO
connector on the VHD-2 to it, using the S-Video cable
6. If there is no S-Video connector on the TV monitor, connect the CV
output of VHD-2 to the composite video input on the TV
7. Set the TV monitor to “video” mode.
8. For HDTV connection use the Component cable provided

VGA to TV & HDTV Scan Converter
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Accessories
The following are available from Hall Research for this product. Please
call 800-959-6439 or 714-641-6607 to order.
Gold-Plated S-Video Cable
Available in lengths of 6ft-100ft
Gold-Plated Composite Video Cable
Available in lengths of 6ft-100ft
Operation
After installation, you must power up the VHD-2 by pressing the power
button on the front panel or on the remote control. The power LED on the
VHD-2 should now be lit, indicating that the unit is on. Turn on the
computer, its monitor (if being used), and the TV monitor. The TV should
display the computer’s display.
Main Menu
1. Press the “MENU” button on VHD-2 Front Panel to entry the
OSD (On Screen Display) Menu Mode.
2. You will see the OSD Main Menu on the middle of your
TV/HDTV screen. (Please refer to the page 14)
3. Press “ITEM” button to select the setting option on OSD Menu,
the selected item will be high light as green bar.
4. Press the “+” and “-” buttons to adjust the setting option value.
5. Press the “MENU OFF” button to close the OSD Menu.

Model VHD-2
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Note:
Using your Remote Control can also operate the OSD Menu.
OSD Main Menu:
OSD Menu Setting Option Description:
Video Quality:
Erase Horizontal Video jitter; enhance the video quality on TV.
Brightness:
Increase or decrease the brightness level on TV.
Contrast:
Adjust the contrast setting to accentuate the highlights and
shadows in TV video.
Sharpness:
Adjust the Sharpness level will sharpen or soften the video
edges.

VGA to TV & HDTV Scan Converter
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Flicker: (9-level Flicker Control adjustment)
Adjust the flash intensity in horizontal line will offer optimal
Computer Image to display on TV.
H POS (Horizontal Position):
Move the Computer Image on TV/HDTV screen horizontally.
V POS (Vertical Position):
Move the Computer Image on TV/HDTV screen vertically.
ZOOM:
Allows you zoom in and out of the Computer Image on TV/HDTV
screen.
Default:
Return each OSD Menu setting option to the default value.

Model VHD-2
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Remote Control
Remote Control button description:
Power: Switch the VHD-2 on/off.
Home: The home setting will bring your
image back to the normal position.
Quality: Enhance video quality on TV.
Zoom: Zoom in and out of the Computer
Image on TV/HDTV screen.
VPOS: Move the Computer Image on
TV/HDTV screen vertically.
HPOS: Move the Computer Image on
TV/HDTV screen horizontally.
ADD: Save the Zooming size and Panning
position and memorized as one Position Mark.
NEXT: Jump to next Position Mark.
PREV: Go back to previous Position Mark.
CLEAR: Press button and hold for three seconds to clear all
Position Mark.
MENU: Press button to entry the OSD Menu Mode.
Up/Down arrow: Press button to select the setting option on
OSD Menu.
Left/Right arrow: Press button to adjust the setting option value
on OSD Menu.
OK: Press button to close the OSD Menu.
PAL:
Press button to covert the Computer Image to PAL TV system.
NTSC: Press button to covert the computer Image to NTSC TV
system.
OVERSCAN: Toggle between Overscan and Underscan.
SHARPNESS: Adjust the Sharpness level on TV/HDTV image.
480P: Press this button to covert the Computer Image into HDTV
system as D2 (720x480P) resolution.
1080I: Press this button to covert the Computer Image into
HDTV system as D3 (1920x1080i) resolution.
FLICKER + / -: Increase and decrease the Flicker level on
TV/HDTV image.
FIT/1:1: Normal Setting is FIT. (Only Accessible via Remote)

VGA to TV & HDTV Scan Converter
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The VHD-2 samples the input video signal at full resolution coming
in.
In FIT mode the unit either down-scales the input signal or up-scales
it in order to “fit” it to the output.
Keep in mind that with S-Video or Composite Video the output
resolution is either 480 lines, or 576 lines (NTSC/PAL), and for the
HDTV component output the resolution could be as low as 480 or as
high as 1080 depending on the HDTV mode that you set.
In 1:1 mode the VHD-2 does not perform any scaling of the input
image signal and theoretically you will get the best image possible
on the output, but if your input resolution does not match the output
resolution the output image may appear either zoomed or will not fit
the entire screen.
Let’s assume that your input from the PC is at 800x600. If you set
the 1:1 mode, then the S-Video and CV outputs will only show
640x480 pixels of the top left portion of the image, On the other hand
if you are using the HDTV output set to say 720p (1280x720) then
output will not fill the screen and you will have the 800x600 pixels
displayed in the center of the HDTV output.
1:1 mode should be avoided and only used if you want to maintain
the aspect ratio when using a widescreen HDTV mode. In 1:1 mode
the Zoom function is disabled.
Original PC
800x600
FIT mode on TV FIT mode on HDTV
1:1 mode on TV 1:1 mode on HDTV

Model VHD-2
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Troubleshooting
Symptom Possible Cause(s)
No picture on TV
Monitor
1. VHD-2 is not ON; Ensure that the adapter is plugged into a
working wall outlet and its DC connector is plugged into the
VHD-2.
2. TV monitor is not ON.
3. The PC is not ON.
4. TV monitor not set to “video input” mode
5. No connection between VHD-2 and the TV. Ensure that either
the composite video output (S-Video) or Y Pb Pr output is
connected to the TV’s video or Y Pb Pr input.
6. No connection between VHD-2 and PC video card. . Ensure
VGA IN is connected to the PC video card and the local PC
monitor to VGA OUT connector. Turn the screws
simultaneously.
7. VGA cables are reversed while no PC monitor used. Ensure
VGA IN is connected to the PC video card and the local PC
monitor to VGA OUT connector.
8. Bad cables. Try other cables.
Poor Picture Quality 1. VGA cables are reversed while a local PC monitor being used.
. Ensure VGA IN is connected to the PC video card and the
local PC monitor to VGA OUT connector.
2. Low Sharpness mode used. Press the Sharpness button on
the remote control to select high sharpness mode.
3. Change the screen resolution on the PC.
Flickering Picture 1. The PC screen resolution too high. VHD-2 can handle
resolutions up to 1600X1200 at 60Hz vertical frequency.
2. The PC vertical frequency (scan rate) is too low or too high for
the selected resolution. This frequency can be set to 50-
120Hz.
Picture Frozen on the
TV Monitor
Press the Freeze button on the remote control.
Remote Control Not
Responding
1. Remote control unit has no battery. Insert a new button style
battery in the remote control unit.
2. The IR sensor on the remote is not facing the remote control
unit while commands are being sent. Make sure the IR sensor
on the VHD-2 is facing the remote control unit.

VGA to TV & HDTV Scan Converter
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Technical Support
If you believe that the VHD-2 is malfunctioning, do not attempt to repair
the unit. Contact Technical Support at 714-641-6607.
Before you call us, please make a record of the history of the problem. We
will be able to provide more efficient and accurate assistance if you have a
complete description, including:
• Nature and duration of the problem;
• Components involved in the problem—that is, what type of cable,
makes and models of computers and monitors, etc.
• Results of any testing you’ve already done.
Shipping and Packaging
If you need to transport or ship the product:
• Package it carefully. We recommend that you use the original
container.
• Before shipping the unit back to Hall Research for repair or return,
contact us to get a Return Authorization (RA) number.

Model VHD-2
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Specifications
VGA Input: Up to 1920 x 1200 on DB15 Female with 16.7 million colors
Horizontal freq: 31.5 KHz to 80 KHz
Vertical freq: 50Hz to 150Hz
Vertical Lines: 1200
VGA modes: Auto Horizontal/Vertical frequency detection to adjust picture position
VGA Output: Pass-Thru DB15 Female Connector (cable included)
VGA pass through function when power off
Video Outputs: (1) Composite Video (AV) – NTSC/PAL (adapter included)
(2) S-Video - NTSC/PAL
(3) Y Pb Pr (Component) / 480i (D1)
(4) Y Pb Pr (Component) / 480P (D2)
(5) Y Pb Pr (Component) / 1080i (D3)
(6) Y Pb Pr (Component) / 720P (D4)
(7) Computer Monitor
Output Format: NTSC / PAL user settable
Controls: Via 4 push-button Switches on the unit or the included IR remote
OSD: On-Screen-Display for adjustments including: freeze, zoom, pan, etc.
Zoom Function: Linear zoom
Max. Altitude: 10,000 ft. (3048 m)
Temperature: Operating: 0 to 50°C; Storage: –40 to +85°C (humidity up to 95% non-
condensing)
Enclosure: ABS
MTBF: 200,000 hours (calculated estimate)
Power: From utility-power (mains) outlet, through included power adapter (4 to 5
VDC center positive, 2A max.)
Size: 5.5" W x 4.0" D x 0.9" H
Weight: 2.0 lb. (3 lb. Shipping)

Model VHD-2
© Copyright 2009. Hall Research, Inc... All rights reserved.
1163 Warner Ave. Tustin, CA 92780
Ph: [phone], Fax -6698