Unison Research
Unico Primo
17
6. SAFETY AND MAINTENANCE
Never operate the device with either the bottom or top covers
removed.
Do not open the amplifier !
There are no user serviceable parts inside. For technical assistance
or product service please refer to your Authorised Dealer or to a
Unison Research
authorised Service Centre.
Do not spill liquid into the amplifier !
If liquid should be accidentally spilled into the amplifier remove the
mains plug from the wall socket immediately and seek assistance
from an authorised Service Centre before attempting to operate it
again.
Before inserting the mains plug into the wall socket ensure that
the switch on the amplifier is in the “OFF” position.
Valve replacement should be carried out using only valves of the
same type and matched in pairs.
The Unico Primo uses one valve type ECC83 (12AX7). The
amplifier has been designed for maximum valve life: in laboratory
tests 1500 hours life have been exceeded.
IMPORTANT!
Before attempting valve replacement make sure that the
amplifier is switched off and remove the mains power cord from
the amplifier. If in doubt your Authorised Dealer or Service
Centre will be able to assist with this operation.
Cleaning the Unico Primo.
Cleaning has to be done after switching off the device and allowing
the amplifier to cool down. Use a soft dry cloth. Do not use solvents
or alcohol-based detergents. Do not rub hard on the screen-printed
legends.
Never operate the amplifier when covered!
Adequate ventilation is essential at all times!
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