Owner`s manual

Viola Legacy Manual Rev 0 Page 10 of 14 14
th
February 2009
incorrect type or rating may create a safety hazard or cause damage to
the unit and may also result in the warranty being voided.
Operating Voltage
Fuse Rating
Fuse Size
100V, 110V or 120V
T6.25A
1
1
/
4
inch
220V or 240V
T3.15A
5mm x 20mm
2 spare fuses are supplied with the amplifier. Suitable replacements
may be obtained from your VIOLA dealer or directly from VIOLA.
• After replacing the fuse, switch the amplifier on and check whether it
operates normally. If the fuse blows again, switch the unit off
immediately, disconnect it from the mains supply and get in touch with
your VIOLA dealer, national distributor or VIOLA directly for technical
support. Contact details for VIOLA are given in the GETTING IN
TOUCH section of this manual.
TROUBLE SHOOTING
Most problems may be resolved by following the steps below. If these fail, please
contact your VIOLA dealer, national distributor or VIOLA directly.
1. No sound and the front panel LED is not lit?
• Press the front panel power switch to confirm that the unit is not
switched off. If there has been a temporary interruption to the mains
supply, or the supply voltage has dropped below certain limits, the unit
will automatically shut down and cannot be restarted until the mains
voltage returns within the normal operating range. The drop-out
voltage and normal operating range for 120V and 240V units are
shown below.
Mains Setting
Drop Out Voltage
Normal Operating Range
120V
90V
90V – 140V
240V
190V
190V – 280V
• Check that the power lead is inserted all the way into the AC input
receptacle on the rear panel, the other end is plugged into the AC wall
outlet and if applicable, that the wall socket is switched on.
• Check that there is power on the AC wall socket by connecting
another piece of equipment that is known to work to the socket.
• Check the mains fuse as shown in the MAINS FUSE section of this
manual.
2. No sound and the front panel LED is lit?
• Check the entire signal wiring in the system.
• Check that all the units feeding the amplifier are switched on.