Precautions
AV mixer A-PRO-4 Start Up Manual 5
Precautions for Use
■Power supply
• Never connect A-PRO-4 to any electrical outlet that is used to power inverter-controlled devices
or devices with an electric motor, such as refrigerators, washing machines, microwave ovens, or
air conditioners. The use of other electrical devices in close proximity to A-PRO-4 could result in
misoperation due to power noise or the generation of other electrical noise. In places where it would
be difficult to provide the A-PRO-4 with an exclusive power outlet, please use an electrical power noise
filter.
• The AC adapter will generate heat when used for long periods of time, but this is normal and does not
indicate a malfunction.
• To prevent misoperation or malfunction, be sure that all power is turned off when connecting A-PRO-4 to
other equipment.
■Installation
• The installation of A-PRO-4 in close proximity to power amplifiers or other equipment with a large
transformer could induce hum. If this happens, increase the separation between the devices or change
their orientation to each other.
• The use of A-PRO-4 in close proximity to televisions or radios could interfere with the reception of audio
or video signals. If this happens, increase the separation between the devices.
• The use of A-PRO-4 in close proximity to mobile phones or other wireless devices could result in noise
or loss of image. If this happens, increase the separation between the devices or turn off the wireless
devices.
• Whenever A-PRO-4 are moved to a location where the ambient temperature differs to an extreme
degree, moisture (condensation) could form inside. Using an A-PRO-4 in this condition could result in
malfunctions. In which case, it is best to wait several hours for the condensation to evaporate before
use.
■Maintenance
• Ordinarily, you should keep an A-PRO-4 clean by wiping it down with a soft, dry cloth or a tightly wrung
damp one. If the A-PRO-4 is heavily soiled, wipe it clean with a cloth dampened in a mild detergent and
then wipe it down with a soft, dry cloth.
• Never use benzene, paint thinner, or alcohol-based solvents to clean A-PRO-4. Doing so could result in
discoloration or deformation.
■Repair
• We cannot warranty the performance of any device or AC adapter that has been disassembled or
modified by the user. Also, we reserve the right to refuse to repair devices or AC adapters.
• When repairing any device, the data stored in memory is sometimes lost. Be sure to back up your data
prior to repair. Please understand that we can neither restore nor provide compensation for lost data.
• We retain an inventory of the functional parts needed to repair A-PRO-4 for a period of six years after
discontinuation of manufacture. Repairs for A-PRO-4 are available only while repair parts are available.
Please feel free to inquire about repairs, however, even after this period is past, since some repairs are
still possible, depending upon the nature of the malfunction.
■Other precautions
• Data stored in an A-PRO-4 memory could be lost due to malfunction or misoperation. Be sure to back
up your data prior to using an A-PRO-4. Please understand that we can neither restore nor provide
compensation for lost data.
• Never apply excessive force to the input and output connectors. To do so could result in malfunctions.
• Always adjust the volume settings so that you do not disturb people who are nearby.
• When transporting an A-PRO-4, wrap it in packing material and place it in its box or otherwise provide
equivalent protection.
• If you do dispose of the box and packing that came with the A-PRO-4, be sure to follow all local
regulations pertaining to the sorting of waste materials.
• Do not use this device to create video images that could adversely affect human health. Image switching
at extremely high speeds could cause headaches, nausea, or seizures in persons already susceptible to
illness. We cannot be held responsible for the effects of video images created with this device.
■Intellectual property rights
• The names of products and companies shown in this manual are the trademarks or registered
trademarks of their respective owners.
• Never use A-PRO-4 for any application that violates the copyrights of a third party. We cannot be held
responsible for instances in which A-PRO-4 are used to violate the copyrights of a third party.
