11
8500-02
CAUTION
4.
Safety precautions and safety check before and after powering up the preamplifier
(Be sure to read for safety use)
Incorrect use or handling of the product may cause electric shock, bodily harm, and damage to the product and other
connected components. Please read the cautions below to avoid accidents.
◆Before closing the chassis after assembly or repair, make sure to verify that all the parts are installed correctly, there are no
mistakes in wiring and soldering before turning ON the power.
◆Electronic components in a vacuum tube amplifier/preamplifier exceed several hundred volts. To prevent electric shock, do
not remove the top chassis when powered ON.
◆When operating the preamplifier with the cover open by necessity (as to test the device), do not touch the parts, terminals,
and metal parts with bare hands. Make sure to wear a pair of gloves. Find a safe place away from others who may come into
contact with the preamplifier while testing. Even when the power plug is pulled out, there is electricity remaining in the
capacitors. Make sure to wait at least 10 minutes after the power plug has been disconnected before touching any
components inside the preamplifier.
◆If you find anything unusual while using the preamplifier, immediately turn OFF the power and unplug the power plug from
the outlet, and refer to "Troubleshooting" on page 12. If you cannot solve the problem, consult your local dealer or EK
JAPAN.
◆Do not use the preamplifier under an electric environment other than the preset power supply voltages. Normal household
current is Alternating Current (AC). Do not connect to a DC power supply.
◆When connecting and disconnecting the preamplifier with other devices, be sure to turn OFF the power and unplug the
power cord plug from the power outlet. Read the instruction manuals of the connected devices carefully and follow their
instructions.
◆When connecting or disconnecting the preamplifier to/from other devices, make sure to have the power of all the devices
turned OFF. Failing to do so may cause damage to the preamplifier and connected devices.
◆Before turning ON, switching inputs, or plug/unplug the headphone terminal, turn the volume control to minimum in order to
prevent sudden bursts of high volume that may cause auditory disorder or speaker and headphone damage.
◆Adjust the sound volume slowly to an appropriate level, especially with headphones, to prevent sudden burst of high volume
that may cause ear injury and auditory disorder.
◆If water or any unwanted substance gets into the main body of the preamplifier, immediately turn OFF the power and
unplug the AC power cord. Wait for at least 10 minutes, open the chassis and remove/wipe off the substance, and consult
with your local dealer or EK JAPAN. Failing to do so may cause failure, fire, or electric shock.
◆Hold onto the AC plug or connectors when unplugging. Do not unplug by yanking the AC power cord, as it may cause
potential injury, fire, or electric shock.
◆Do not put heavy items on or under the AC power cord. Do not place the preamplifier near any source of heat, such as a
heater. Doing so may damage the AC power cord and cause fire or electric shock. Do not use damaged AC power cord.
◆Do not plug/unplug AC power cord with wet hands. Doing so may result in electric shock.
◆Handle the preamplifier gently, especially the vacuum tubes as they are made of glass.
◆Place the preamplifier on a stable surface to avoid a falling hazard. Place the preamplifier in a location where nothing could
fall onto the preamplifier.
◆Keep out of direct sun, extreme hot and cold, humid or dusty areas as they may cause accidents and damage. Do not allow
gas or corrosive substances to come into contact with the preamplifier. Failing to do so may cause damage or hazard.
◆Make sure the preamplifier is placed at least 3cm away from walls and surrounding objects as the preamplifier will radiate
heat. Do not place the preamplifier on a thick carpet, or in an enclosed space such as a drawer, or a box that will obstruct
ventilation. Do not cover the preamplifier with table cloths, towels, pillows or anything that may cause fire.
◆Clean the preamplifier regularly. If dust accumulates on the circuit board, it may cause fire or other hazards. It is
recommended to clean the preamplifier before the start of humid or rainy seasons.
◆The preamplifier is designed for home use. Do not use it in environments that it would push the preamplifier beyond it's
limitations.
◆Discard the preamplifier according to the rules and standards in your region. Failing to do so may cause damage to the
environment and others.
◆When transporting the preamplifier, remove the vacuum tubes from inside the chassis to prevent damage to the tubes.
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