Black Box VGA-to-HDTV Scaler Plus User manual

Changes the resolution and refresh rate of your video signal !
Can also change VGA to HDTV Component and Vice-Versa
VGA-to-HDTV Scaler Plus
AC345A
Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX
FREE technical support, 24 hours a day, 7 days a week: Call 724-746-5500 or fax [phone]
Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
Web site: www.blackbox.com • E-mail: [email protected]
CUSTOME
R
SUPPORT
INFORMATION
AC345A
UMA1089 Rev 2C

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TRADEMARKS USED IN THIS MANUAL
BLACK BOX and its logo are registered trademarks of Black Box
Corporation.
Apple and Macintosh are registered trademarks of Apple Computer, Inc.
IBM is a registered trademark of International Business Machines
Corporation.
SGI is a registered trademark of Silicon Graphics, Inc.
Sun and Sun Microsystems are registered trademarks of Sun Microsystems,
Inc. in the United States and other countries.
Any other trademarks mentioned in this manual are acknowledged to be the
property of the trademark owners.

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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 tested and found 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 designed 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
at his own expense will be required to take whatever measures may be
necessary to correct the interference.
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.
EUROPEAN UNION DECLARATION OF CONFORMITY
This product complies with the requirements of the European EMC
directive 89/336/EEC

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Normas Oficiales Mexicanas (NOM)
Electrical Safety Statement
INSTRUCCIONES DE SEGURIDAD
1. Todas las instrucciones de seguridad y operación deberán ser leídas
antes de que el aparato eléctrico sea operado.
2. Las instrucciones de seguridad y operación deberán ser guardadas para
referencia futura.
3. Todas las advertencias en el aparato eléctrico y en sus instrucciones de
operación deben ser respetadas.
4. Todas las instrucciones de operación y uso deben ser seguidas.
5. El aparato eléctrico no deberá ser usado cerca del agua—por ejemplo,
cerca de la tina de baño, lavabo, sótano mojado o cerca de una alberca,
etc.
6. El aparato eléctrico debe ser usado únicamente con carritos o pedestales
que sean recomendados por el fabricante.
7. El aparato eléctrico debe ser montado a la pared o al techo sólo como
sea recomendado por el fabricante.
8. Servicio—El usuario no debe intentar dar servicio al equipo eléctrico
más allá a lo descrito en las instrucciones de operación. Todo otro
servicio deberá ser referido a personal de servicio calificado.
9. El aparato eléctrico debe ser situado de tal manera que su posición no
interfiera su uso. La colocación del aparato eléctrico sobre una cama,
sofá, alfombra o superficie similar puede bloquea la ventilación, no se
debe colocar en libreros o gabinetes que impidan el flujo de aire por los
orificios de ventilación.
10. El equipo eléctrico deber ser situado fuera del alcance de fuentes de
calor como radiadores, registros de calor, estufas u otros aparatos
(incluyendo amplificadores) que producen calor.
11. El aparato eléctrico deberá ser connectado a una fuente de poder sólo
del tipo descrito en el instructivo de operación, o como se indique en el
aparato.

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12. Precaución debe ser tomada de tal manera que la tierra fisica y la
polarización del equipo no sea eliminada.
13. Los cables de la fuente de poder deben ser guiados de tal manera que no
sean pisados ni pellizcados por objetos colocados sobre o contra ellos,
poniendo particular atención a los contactos y receptáculos donde salen
del aparato.
14. El equipo eléctrico debe ser limpiado únicamente de acuerdo a las
recomendaciones del fabricante.
15. En caso de existir, una antena externa deberá ser localizada lejos de las
lineas de energia.
16. El cable de corriente deberá ser desconectado del cuando el equipo no
sea usado por un largo periodo de tiempo.
17. Cuidado debe ser tomado de tal manera que objectos liquidos no sean
derramados sobre la cubierta u orificios de ventilación.
18. Servicio por personal calificado deberá ser provisto cuando:
A: El cable de poder o el contacto ha sido dañado; u
B: Objectos han caído o líquido ha sido derramado dentro del aparato;
o
C: El aparato ha sido expuesto a la lluvia; o
D: El aparato parece no operar normalmente o muestra un cambio en
su desempeño; o
E: El aparato ha sido tirado o su cubierta ha sido dañada.

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Contents
TRADEMARKS USED IN THIS MANUAL.................................. 1
FEDERAL COMMUNICATIONS COMMISSION AND
CANADIAN DEPARTMENT OF COMMUNICATIONS RADIO
FREQUENCY INTERFERENCE STATEMENTS ....................... 2
EUROPEAN UNION DECLARATION OF CONFORMITY ...... 2
NORMAS OFICIALES MEXICANAS (NOM) ELECTRICAL
SAFETY STATEMENT INSTRUCCIONES DE SEGURIDAD.. 3
CONTENTS ....................................................................................... 5
1. INTRODUCTION ......................................................................... 6
1.1 GENERAL .................................................................................. 6
1.2 FEATURES................................................................................. 6
2. INSTALLATION........................................................................... 7
2.1 INPUT CONNECTION: ............................................................ 7
2.2 OUTPUT CONNECTION:........................................................ 7
2.3 CONNECTION BLOCK DIAGRAM ...................................... 8
3. CONFIGURATION & OPERATION......................................... 8
3.1 FRONT AND REAR PANELS.................................................. 8
3.2 MENUS AND ADJUSTMENTS ............................................... 8
3. TROUBLESHOOTING .............................................................. 13
3.1 RESETTING THE AC345A TO FACTORY DEFAULTS .. 13
3.2 CALLING BLACK BOX......................................................... 13
3.3 SHIPPING AND PACKAGING ............................................. 13
4. SPECIFICATIONS ..................................................................... 14

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1. Introduction
1.1 General
The Black Box Model AC345A is a high-performance universal VGA /
HDTV to VGA / HDTV Scan Rate converter. It also offers the
capability to "Mirror" the VGA input signal on the X-axis.
The Video Processor combines the functions of a video scaler, scan-
converter, and format transformer and is packed into a compact and
housing. The AC345A is controlled via push buttons and OSD menu.
The controls include input/output setup picture adjustment, H/V phase
adjustment, System information and many other advance options.
The AC345A allows you to specify a resolution and refresh rate for it's
output. Then it will output a steady (uninterrupted) VGA or
Component HD signal to your display device at your specified rate
regardless of the input. This effectively allows any VGA switch, such
as Black Box AC505A or AC506A, to become a virtual seamless
switch. Therefore when you switch from one input to another, the
display device does not see any interruption in the video signal timing.
1.2 Features
• The resolution of any PC or HDTV video signal can be scaled up or
scaled down to any other PC or HDTV resolution. It can also
change the frame rate of the output.
• Large Video memory for real-time frame rate capture &
conversion.
• Signal format conversion between RGBHV and YPbPr.
• Input: PC (VGA/SVGA/XGA/SXGA) + HDTV(480i 576i 480p
567p 720p 1080i), @ 60 to 85 Hz
• Output: PC (VGA/SVGA/XGA/SXGA) + HDTV(480p/576p/720p/1080i)
• Automatically detects input mode and timing parameters
• Allows fine-tuning the output picture to optimum through
adjustment of sampling clock, phase, and position on screen.
• Can Mirror VGA output Horizontally; perfect for teleprompting
and rear projection systems

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2. Installation
2.1 Input connection:
The AC345A can accept both PC and HDTV inputs. When accepting a
PC input use the 15-pin D-sub cable to connect the output of a PC
device to the input connector labeled PC/HDTV on the back of
AC345A.
When accepting a HDTV input use a15-pin D-sub to YPbPr/3 RCA
cable to connect the YPbPr/output (or YCbCr) of a HDTV device to
the PC/HDTV input connector of the AC345A.
The AC345A can automatically detect the mode and resolution of the
PC/HDTV input.
2.2 Output connection:
The AC345A can output a variety of PC resolutions as well as a
number of HDTV resolutions (see Table 3.1 on page 10).
When one of the PC resolutions is selected as output, use a standard
VGA 15-pin D-Sub cable to connect the PC/HDTV output of the
AC345A to the VGA input of a display monitor.
When one of the HDTV resolutions is selected as output, use a 15-pin
D-Sub to YPbPr/3 RCA adaptor cable to connect the PC/HDTV output
of the AC345A to the YPbPr input of a HDTV device.

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2.3 Connection Block Diagram
3. Configuration & Operation
3.1 Front and Rear Panels
3.2 Menus and
Adjustments
Pressing the Menu button will bring up the OSD menu controls on the
screen as follows:

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Use +,or - to move the arrow cursor to your desired selection, then
press MENU to confirm your selection and enter into sub menu.
I
In np pu ut t s se et t u up p - -When it is selected, a sub menu of input signal
capture adjustments will appear.
Use +,- to choose the parameter your want to adjust and then press the
Menu (Enter) to highlight your selection. Then use +,- to increase or
decrease the setting. Press Menu (Enter) again to leave the setting.
“CLOCK” changes the number of samples per display line. The unit
samples the video at the nominal pixel rate. For example a 1024x768
resolution signal is sampled 1024 times during the active video time.
Changing the clock has the effect of adjusting horizontal size of the
displayed output. When you change this setting, the right edge of the
video moves to the left (shrinking width) or right (expanding width).
“PHASE” refers to nanosecond timing position of each sample taken.
This adjustment can be used to align the pixels grabbed by the
AC345A to those created by the VGA card in the PC.
“H-ADV” (if present – some units may not have this adjustment) refers
to the point at which active video sampling starts. Its effect is to start
sampling earlier thereby showing more of the left edge of the image.
Use this only if the left edge of the image seems to be cut off and you
don’t seem to be able to correct it by the H V ADJUST menu
selection. this adjustment gives the user approximately 10 pixel
advanced sampling range..

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YPbPr or RGB - Under normal condition the unit The AC345A
automatically detects and shows the input format as YPbPr or RGB.
However, you can manually select it match the format of your input.
Selecting a wrong format will result in an abnormal picture.
O
Ou ut tp pu ut t s se et t u up p - -When it is selected, a sub-menu appears, that
gives you choices for the Output Mode (refresh-rate and resolution)
and Mirroring Status. use +, - button to choose your desired PC or
HDTV resolution and mirroring state. Please refer to Table 3.1 on page
7 for a list of available output Modes
P
Pi ic ct tu ur re e A Ad dj ju us st t - -When it is selected the following adjust
parameters will appear:
The factory preset values are shown above. Use + -, and MENU/Enter
to adjust the value of your selected parameter. Select reset to reset all
adjustment back to the factory preset value.
Table 3.1 – Output Modes
PC Resolutions HDTV Resolutions
SXGA 1280 X 1024@60/75Hz 720p-RGB 1280X 720@60Hz
1280A 1280 X 960@60Hz 576p-RGB 720X 576@60Hz
XGA 1024 X 768@60/70/75/85Hz 480p-RGB 720 X 480@60Hz
WXGA 1280 X 768@60Hz 720p-YPbPr 1280 X 720@60Hz
SVGA 800 X 600@60/72/75/85Hz 576p-YPbPr 720 X 576@60Hz
VGA 640 X 480@60/72/75/85Hz 480p-YPbPr 720 X 480@60Hz
VGA 70 720 X 400@70Hz 1080i-YPbPr 1920 X1080@60Hz
VESA 85 640 X 400@85Hz
1152 X 864@ 70/75Hz
H
HV V a ad dj ju us st t - -When it is selected the following sub-menu appears.

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H
HV V a ad dj ju us st t - -When it is selected the following sub-menu appears.
Some versions have a “SIZE” menu choice
Use + - to adjust the best horizontal and vertical position.
If your unit has a “SIZE” menu choice, you have the options of OVER
and UNDER selected by the + and – buttons. Normal setting is OVER
which stands for “OVER SCAN”. It fits the output screen perfectly to
your display borders. When converting a PC input to HDTV output
(480p, 576p, 720p, or 1080i) you may crop some of the edges of the
PC signal. In this case select the UNDER choice which stands for
“UNDER SCAN” Note that the under scan feature only works for
certain input/output resolution combinations. For example with an
input resolution of 800x600 and output resolution of 720p the under
scan shrinks both the width and height of the output. Also if the input
resolution is 1280x1024, output settings of 480p and 576p will have
full under scan functionality. At other input/output combinations, the
under scan may only affect the height or width or neither!
O
OS SD D a ad dj ju us st t - -When it is selected, you can adjust the Horizontal
and Vertical position of the OSD menu.
S
Sy ys st te em m i in nf fo or rm ma at ti io on n - -When it is selected, it shows the
input/output resolution and their vertical refresh rate on the screen.
A
Au ut to o a ad dj ju us st t - -When it is selected the SC-VGA-2 will
automatically adjust the capture parameters for the current input video
resolution to the factory preset values.
E
Ex xi it t - -Select to exit from the current menu page.

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Notes
 The default output resolution of the AC345A is XGA @
60Hz.
 The unit has non-volatile memory and memorizes all your
settings before power off and recalls those settings on next
power on.
Quickly Jumping to XGA or 480p Output
At any time, pressing + and - buttons simultaneously for a few seconds
will reset the output resolution to XGA@60Hz, and other settings back
to factory default values. Pressing the Menu and – together for a few
seconds will choose 480P YPbPr output mode.

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3. Troubleshooting
3.1 Resetting the AC345A to factory defaults
There are no field serviceable parts or circuits in the device. If you
think that the device is malfunctioning, please first try to reset to
factory default settings:
If you are using a VGA monitor: Press the + and - buttons
simultaneously for 2 seconds.
If you are using a HDTV with component input: Press the MENU and -
buttons simultaneously for 2 seconds.
3.2 Calling Black Box
If you determine that your unit is malfunctioning, do not attempt to
repair the unit. Contact Black Box Tech. Support at 724-746-5500.
Before you do, 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:
• The nature and duration of the problem;
• The components involved in the problem—that is, what type of
cable, makes and models of computers and monitors, etc.
• The results of any testing you’ve already done.
3.3 Shipping and Packaging
If you need to transport or ship your AC345A:
• Package it carefully. We recommend that you use the original
container.
• Before you ship the unit back to Black Box for repair or return,
contact us to get a Return Authorization (RA) number.

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4. Specifications
General
Input
PC Resolutions HDTV Resolutions
VGA 640 X 480@60/72/75/85Hz 1080i 1920 X1080@60Hz
VGA 70 720 X 400@70Hz 720p 1280X 720@60Hz
VESA 85 640 X 400@85Hz 576p 720X 576@50Hz
SVGA 800 X 600@60/72/75/85Hz 576i 720X 576@50Hz
XGA 1024 X 768@60/70/75/85Hz 480p 720 X 480@60Hz
Mac 1152 X 864@ 70/75Hz 480i 720 X 480@60Hz
WXGA 1280 X 768@60Hz
1280A 1280 X 960@60Hz
SXGA 1280 X 1024@60Hz
Output
PC Resolutions HDTV Resolutions
VGA 640 X 480@60/72/75/85Hz 1080i-RGB 1920 X1080@60Hz
VGA 70 720 X 400@70Hz 720p-RGB 1280X 720@60Hz
VESA 85 640 X 400@85Hz 576p-RGB 720X 576@60Hz
SVGA 800 X 600@60/72/75/85Hz 480p-RGB 720 X 480@60Hz
XGA 1024 X 768@60/70/75/85Hz 1080i-YPbPr
1920 X1080@60Hz
Mac 1152 X 864@ 70/75Hz 720p-YPbPr 1280 X 720@60Hz
WXGA 1280 X 768@60Hz 576p-YPbPr 720 X 576@60Hz
1280A 1280 X 960@60Hz 480p-YPbPr 720 X 480@60Hz
SXGA 1280 X 1024@60/75Hz

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© Co
py
ri
g
ht 2007. Black Box Cor
p
oration. All ri
g
hts reserved.
1000 Park Drive Lawrence, PA 15055-1018 724-746-5500 Fax [phone]