Tri-Vista Power Instructions for Use Page 7 of 9
OPERATION
(contd.) &
FLUORESCENT DISPLAY
Issue 1: March 2003
BRIGHTNESS
Pressing the
BRIGHTNESS
button on the
power supply front panel cycles the fluo-
rescent display through five brightness
levels.
DISPLAY INFORMATION
Each time the
INFO
rmation button on the
power supply front panel is pressed, the
display mode changes between three
states. Note that the display still functions
if power to the amplifiers has been
switched off by the
OFF
button.
When the button is pressed for the first
time after the system has been switched on,
the display shows the total number of
hours the amplifiers have been powered
:
Press again
. . .
. . .
the serial number is shown
:
Press again
. . .
. . .
the model number is shown
:
Press again
. . .
. . .
the display reverts to its initial state
:
Select the required audio input source on
your pre-amplifier, and adjust the volume
control to obtain the preferred sound level.
After a period of about 35 minutes, the
LED feet colour fades to blue, confirming
that the amplifiers are fully warmed up.
Pressing the
OFF
button turns off the dis-
play and power to both amplifiers.
AUTOMATIC FAULT DETECTION
If there is a fault with either left or right
channel, or the cables are not connected
correctly, that channel will shut down auto-
matically.
There are sensors in each channel to detect
adverse operating conditions. Under these
conditions the display shows the word
CLIPPING
and a number between 1 and
240 depending on severity. If this number
reaches 240, both amplifiers will shut
down.
Similarly, if a major overload is detected by
either amplifier, both amplifiers will shut
down immediately.
Note :
After an initial “burn-in” period of 168
hours in the factory, this counter has been
set to zero.
The fluorescent display then shows the fol-
lowing automatic sequence
:
