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(Function only available
during
power
up
countdown sequence)
Suppress normal
Output tube LED
activity
Function turns off
top deck output tube
LEDs.
(Function only
available in operate
mode.)
S-400 Amplifier Owner's Manual
VTL
RS-232: >COUNTDN ON
Press the MUTE button while
holding down the TUBE BIAS
button to turn the LEDs off.
RS-232: >BIASLEDS OFF
Press the MUTE button while
holding down the TUBE BIAS
button to turn the LEDs back on.
RS-232: >BIASLEDS ON
Top deck LEDs toggle between on
and off.
Note: Only normal bias activity is
suppressed,
identification is not suppressible.
33
fault
and
tube
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