Cambridge Research Systems BOLDscreen 32 AVI User manual
BOLDscreen 32 AVI : Getting Started
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Contents
Introduction........................................................................................................................................................................ 3
System Features........................................................................................................................................................... 3
Parts List.......................................................................................................................................................................... 4
Hardware Requirements.......................................................................................................................................... 4
Connectors and controls........................................................................................................................................... 5
Rear panel....................................................................................................................................................................... 5
Installation .......................................................................................................................................................................... 6
Operation............................................................................................................................................................................. 6
Power states and button functions summary............................................................................................. 7
Safety Warnings ................................................................................................................................................................ 8
Contact ............................................................................................................................................................................... 10
BOLDscreen 32 AVI : Getting Started
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Introduction
BOLDscreen32 AVI makes it easy for you to connect multiple stimulus computers or other video
sources to your BOLDscreen 32 MRI-compatible LCD display. The AVI allows switching easily
between different input sources and provides an auxiliary output to drive a second monitor so
that you can monitor the image shown to the patient from the control room. The AV also
removes to requirement for the video source to produce a 1920x1080 120Hz output, as it can
re-scale many input resolutions and produce an appropriate output for the BOLDscreen 32.
System Features
•1920x1080 @ 120Hz output, via fibre connection appropriate for connecting directly to
BOLDscreen32.
•1920x1080 120Hz output via HDMI, suitable for connecting to a monitor in the MRI
control room.
•S/PDIF audio output for connection to MRI headphone systems.
•Four HDMI inputs.
•One DisplayPort input.
•All inputs accept resolutions of 640x480 up to 1920x1080 at framerates between 50 and
120Hz.
•One input source can be shown on the BOLDscreen 32 at any one time.
•Remote control of BOLDscreen 32 mirror-mode and low-power features.
BOLDscreen 32 AVI : Getting Started
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Parts List
BOLDscreen32 AVI —Video input switching box.
Getting Started Guide —Printed version of this document.
SD Card —If you purchased your AVI to work with your existing BOLDscreen32, you will have
received a replacement San Disk 4 GB or 8GB SD/SDHC card or similar. This contains a firmware
upgrade for your BOLDscreen 32 that will enable the remote control features.
Power Supply Unit —IEC320-C14 input connector. 60 W, 24 V DC output. 1 m attached cable
terminates in barrel connector.
Power Cord —2 m IEC320-C13 power cord. Terminates in region-specific plug.
Hardware Requirements
A variety of inputs are supported. For example:
•A computer running Windows XP SP3 or later (ideally Windows 10), Mac OS X 10.11 (El
Capitan) or later, or a Linux distribution like Ubuntu 16.04 or later. The computer must
have a HDMI (via an adapter if necessary) or DisplayPort output.
•A Blu-ray Disc player or DVD player with HDMI output.
•A streaming media device with HDMI output.
Optionally, a second monitor can be connected to monitor the BOLDscreen 32 image from the
control room. The rear of the AVI has a clone HDMI output for this purpose. This clone output is
identical to the fibre output and produces video at 1920x1080 @ 120Hz. We have tested the
clone HDMI output with 24” ViewSonic XG2401 and XG2402 LCD monitors – other desktop LCD
monitors should work too if they can support 1920x1080 @ 120Hz via HDMI.
BOLDscreen 32 AVI : Getting Started
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Connectors and controls
Front panel
Rear panel
Power button/indicator
Mirror button/indicator
Input selection buttons/indicators
Video input ports
Power input (from PSU)
Service port (for CRS use only)
S/PDIF audio output to MRI
audio system
HDMI output to clone monitor
Fibre output to BOLDscreen 32
BOLDscreen 32 AVI : Getting Started
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Installation
1. You may have received a new SD card for use with your existing BOLDscreen 32. This
contains a firmware upgrade and new set of FPGA logic files to support the AVI. Your
monitor must be used with the new SD card –just switch the monitor off and replace the
original SD card with the new one, then switch the monitor on again. When the monitor
restarts, the upgrade will be loaded. The upgrade supports the Power Off and Mirror
Mode features that you can select on the AVI front panel.
2. Situate the AVI in the control room so that the fibre cable connected to the BOLDscreen
32 can reach the rear of the AVI and so that you can easily access the front panel. Do
NOT take the AVI box into the MR room.
3. Connect the fibre cable from the BOLDscreen 32 directly to the connector marked
“BOLDscreen 32” on the back of the AVI unit. You do not need to use the DVI fibre
transmitter if one was originally supplied with your BOLDscreen. The AVI contains an
embedded dual-link DVI video to fibre optic converter. Please return the Ophit TX dual-
link DVI to fibre converter module that was originally supplied with the monitor to CRS.
4. Turn on the power to the BOLDscreen 32.
5. Optionally, connect a clone monitor to the HDMI output on the rear of the AVI box via a
standard HDMI 1.4 (or above) cable. This monitor should be situated in the control
room, NOT in the MR room.
6. Optionally, connect your MRI headphones amplifier to the S/PDIF output on the rear of
the AVI with a standard audio optical fibre (Toslink) cable.
7. Connect the power supply unit barrel connector to the rear of the AVI. Connect the
power cord to the power supply unit and to a suitable wall outlet.
Operation
1) Connect a suitable video source to one of the four HDMI inputs or the DisplayPort input.
Connect other inputs as necessary.
2) Configure the output resolution on the source. The native, recommended video input
mode is 1920x1080 at 120Hz, but 1920x1080 at 60Hz is a good choice too. The AVI box
will re-scale other resolutions.
3) Press and hold the power button on the front of the AVI unit for three seconds to wake-
up the AVI from low-power mode. The power button indicator will change from slowly
pulsing to blinking.
4) Press the appropriate input select button to choose which input source will be displayed
on the BOLDscreen 32. The same image will also be shown on your clone monitor (if
connected) and the corresponding audio will be played through your MRI headphones
(if connected).
5) Press the power button once to send video the BOLDscreen 32. It may take several
seconds for the BOLDscreen to switch modes. You may also briefly see the status screen
during this time. The power indicator will be continuously illuminated.
6) If required, toggle the mirror-mode on and off by pressing the Mirror Mode button on
the front panel of the AVI box. This toggles left/right inversion of the image. This is
useful for presenting correctly-oriented images to patients as they view the BOLDscreen
BOLDscreen 32 AVI : Getting Started
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32 through a head-coil mirror. The image on the clone monitor (HDMI output) will not
be affected.
7) If required, switch between inputs by pressing the appropriate input select button.
Again, there may be a delay while the BOLDscreen switches modes.
8) Press the power button once to place the BOLDscreen 32 in a low-power mode. This
mode turns off the BOLDscreen 32 LED backlight so that no picture can be seen. The
power indicator will change to blinking.
9) To restore the image on the BOLDscreen 32, press the power button once to restore
video to the BOLDscreen32.
10) To place the AVI box in low-power mode, first place the BOLDscreen 32 in low-power
mode as in step 8, then press and hold the power button for three seconds. The power
indicator will change to slowly pulsing.
Note: If an input source stops sending video, for example because it is powered off or goes into
sleep mode, then the AVI box will stop sending video. When the source begins sending video, the
AVI box will not output video to the BOLDscreen 32 automatically. Press the corresponding
input select button to restore video.
Power states and button functions summary
AVI box state
BOLDscreen32
state
Clone
monitor
state
Short press
Long press
(~3s)
Low power (power
indicator pulsing
slowly)
Low power
No video
N/A
AVI box->
Sending
video
Sending video
(power LED
blinking, one input
LED on)
Low power
Displaying
video
BOLDscreen32 ->
Displaying video
AVI box->
Low power
Sending video (LED
solid on, one input
LED on)
Displaying video
Displaying
video
BOLDscreen32 ->
Low power
N/A
BOLDscreen 32 AVI : Getting Started
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Safety Warnings
The MRI scanner should only be used by suitable qualified personnel aware of the risks
involved. National regulations and guidelines should be followed. Follow all safety instructions
from the MRI scanner manufacturer.
Life support applications
BOLDscreen 32 AVI should NOT be used in situations where failure of the device would
constitute a hazard. It is designed for visual stimulus of research applications only, and like any
other regular electronic device the device could fail at any time, without warning.
BOLDscreen 32 AVI box
The BOLDscreen 32 AVI box contains SIGNIFICANT FERRO-MAGNETIC CONTENT. DO NOT
TAKE THE AVI BOX INTO THE MAGNET ROOM.
Servicing
DO NOT ATTEMPT TO DISMANTLE any part of the BOLDscreen 32 AVI system. The BOLDscreen
32 AVI unit and mains PSU contain no user serviceable components, refer all servicing to
Cambridge Research Systems.
Cleaning
Clean external components of BOLDscreen 32 AVI with a damp cloth only. Do NOT allow fluids
to enter the AVI unit or PSU. Do not sterilise in an autoclave.
Mains PSU
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The mains PSU contains SIGNIFICANT FERRO-MAGNETIC CONTENT. DO NOT TAKE THE
MAINS PSU INTO THE MAGNET ROOM.
The power supply contains dangerous mains voltage and also has no user serviceable parts. Do
not attempt to dismantle.
Optical hazard
The infra-red laser diodes in the DVI video transmitter are class 1M. Do not view the output of
the fibre transmitter, or end of the fibre cable, with optical instruments.
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