Operating the HCA-3500
Refer to Figure #1
Power Switches
There are separate power switches for the left and right channels. Press the upper side to turn each channel on; press the lower side to turn each channel off.
Bi-Color Channel Status Indicators
When you first turn the power switches of the
Current Overload Indicator
These indicators let you know if there is too low of an impedance at the amplifier's output thereby exceeding the amplifiers current capacity. During normal operation, the
High Temp Indicator
This indicator will light when either of the external heatsinks reaches 90 degrees centigrade. If the High Temp indicator lights, it probably means that the amplifier has inadequate ventilation. If either channel is driven beyond its thermal capacity, the High Temp indicator will light red and the affected channel's indicator will change from green to red. Refer to page 6 for more information about proper ventilation. Once the heatsink cools below 90 degrees, the amplifier channel will automatically reset and resume normal operation.
Maintaining Your Parasound Amplifier
Your Parasound power amplifier requires no periodic maintenance and has no user serviceable parts inside. To avoid the risk of electric shock, do not remove the top cover. The amplifier's exterior can easily be cleaned with a soft cloth moistened only with a few drops of water or glass cleaner.
Main Power Fuses
There is an external fuse for each channel on the rear panel. These fuses protect the unit from possible damage to internal parts. Never replace fuses with a higher value than installed from the factory. Substitution of larger fuses may create serious stress and damage to internal parts and will void your warranty.