User manual

6
3.2. Mains connection
All the models can be supplied for 110-120 / 220-240VAC and 50-60Hz, depending on
the country (see characteristic label on the amplifier), being the approximate power consumption
at full power:
MODEL PAM1100 PAM2100 PAM4100 PAM6100
POWER C. 1390VA 2590VA 4000VA 6260VA
Contact our Technical Services whenever a supply voltage change should be needed.
WARNING!: By convention, the mains wire colour assignment is the following:
- BROWN = Phase
- BLUE = Neutral
- YELLOW/GREEN = Earth
The PAM2100/4100/6100 models have been provided with a soft start that limits the
current peak when starting up the amplifier to a maximum of 25A. This system enables the
simultaneous connection of various amplifiers without overloading the magneto-thermal switches
and also increases the electronics reliability thanks to the suppression of the initial transitories.
The PAM1100 do not need this system because of their lower power.
Make sure that the mains wire is not engaged with the signal wires in order to avoid
possible hum.
A set of slow blow fuses on each power module, on the transformer primary and on the
soft start circuitry (see table) is disposed in the amplifier as a protection against
overloads. Whenever one of this fuses blows, it must be replaced by another one of the
same characteristics. If it blows again, please consult our Technical Service.
CAUTION: Fuse substitutions have to be performed by a qualified technician.
3.3. “Earth Link” switch
The Earth Link or Ground Link switch (12) prevents possible ground loops when various
machines in the same chain are connected to earth. This switch makes possible to disconnect the
electrical ground from the mechanical ground. Whenever hum arises, alternatively switch the earth
link switches of the amplifier and others components of the audio chain.
FUSES PAM1100 PAM2100 PAM4100 PAM6100
Mains T 12A T 16A T 16A T 16A
Soft start ----- T 0.250A T 0.250A T 0.250A
T 12A T 16A T 12A T 16A
Power
----- ----- T 0.250A T 0.250A