Diagnostic And Programming Functions; Basic Programming Functions - VTL S-400 II series Owner's Manual

Diagnostic and programming Functions

This amplifier is a sophisticated component with a complete set of user features and controls. To get the
most out of your new purchase it is strongly advised that you read and understand the following instructions,
however it is not necessary to be able to perform or understand all of these functions for normal operation
of the amplifier, as all critical operations are handled automatically. In all cases all of these functions are
accessible remotely, and your authorized VTL installer dealer can perform them for you, either locally in
your system or remotely.
The amplifier's internal status information can be accessed either by using a set of buttons located behind the
Diagnostic panel or via the rear RS-232 port. To access the front panel buttons, hold the bottom of the inset
Diagnostic panel with one hand, and carefully remove it using a 7/64" Hex wrench to loosen the two fasteners,
gently pulling the small black panel insert towards you.
Six red buttons with corresponding LEDs are revealed, as well as the master processor. The master
processor is socketed and can be updated with any new software versions or specially requested features.
The diagnostic buttons are used for accessing all of the diagnostics that this amplifier is equipped with,
allowing the user access to the most important operating features and controls.
WARNING: Be careful not to touch the master processor pins or any of the circuitry other than the
buttons, as noise or static electricity can cause shut down and/or permanent damage. Before
using the diagnostic buttons it is strongly recommended that your discharge your body by
touching any exposed metal surface that touches the ground. Do not drag your feet across a
carpeted surface, as this can build static charge.

Basic Programming functions

These functions are user convenience functions, and are not critical to the amplifier's proper operation.
Function
Suppress Power on
countdown display
If unsuppressed the
countdown timer
displays the number of
seconds remaining in
the power on warm-up
sequence.
S-400 Amplifier Owner's Manual
VTL
messages, starting with the most
recent events.
Procedure
Press the MUTE button during
power on countdown sequence to
turn off the countdown display.
RS-232: >COUNTDN OFF
Press Mute again
countdown sequence to turn the
countdown display back on.
>VIEWERR command
results to your dealer or
to the VTL factory so
that we can help you
analyze the errors that
had occurred in your
amplifier.
Indication
Countdown timer display toggles
between display and suppress display
with each press of the MUTE button
during power on warm-up cycle.
during
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