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BUGERA 1960 INFINIUM Valve Life Monitoring
Step 4: INFINIUM
(EN)
Valve Life
Monitoring
The INFINIUM Valve Life Monitoring circuitry
continuously monitors the output valve biasing for
optimum performance and consistent tone, even as
the valves age. When an output valve does need to
be replaced, the valve's matching LED on the back
panel will light permanently.
This circuitry monitors each valve individually,
which means you do not need to purchase matched
valve sets. Each valve will operate at ideal current
levels regardless of deviations in the mains voltage.
When you do need to replace a valve, you may plug
in the new valve and immediately begin using the
amplifier; you will not need a technician to set up
the bias for the new valve. You may also freely mix
any combination of EL34/6550- and 6L6/5881-
based valves.
To replace a faulty output valve:
1.
Switch off the amplifier and wait for
the output valves to cool down to a safe
temperature before touching them.
2.
Press down the tube retainer to the chassis
using two fingers of one hand, and then
gently pull on the valve while lightly rocking
back and forth until the valve loosens and
slides out of the socket.
3.
Carefully insert the new valve, making sure
the new valve's prongs are properly aligned
with the matching holes and the center coding
pin is aligned with the corresponding notch in
the socket.
4.
Gently push the new valve until it seats firmly
in the socket.
5.
Switch the amplifier back on in Standby mode.
6.
When the valves have warmed up to operating
temperature, you may switch the amplifier out
of Standby mode.
7.
The INFINIUM Valve Life Monitoring
LEDs should now turn off, and you can
begin playing.
Quick Start Guide
When one of the front panel lights starts
flashing regularly, this is to indicate the amp
cannot work due to too many tube issues.
In this case we recommend replacing the
faulty power amp tubes immediately.
DANGER!
High voltage! Risk of death!
High voltages of up to 500 V DC may be present
inside the casing for long periods after
being disconnected from the mains. To avoid
lethal electric shock, do not open the casing.
There are no user-serviceable components
inside. Refer all maintenance to qualified
service personnel. Remove the mains cable
when the unit is not in use.
The parts inside the amplifier operate at high
voltages and high temperatures. To avoid
damage and injury that results from fire or
electric shock, do not drop or spill anything
into the unit's casing.
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