Dynatech TD10000Q User Instructions - Page 15
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AMPLIFIER
Precautions
Introduction
Front-panel monitoring and adjustments
Level indicators
The front-panel displays an array of ten LED indicators for level and status
monitoring of each amplifier channel. Indications related to signal levels are as
follows:
Red CPL (Current Peak Limiter) flashing Indicates that output signal has
reached the limit of the output devices and limiting is in effect.
Red VPL / CLIP Indicates that signal has reached maximum output voltage.
(Maximum voltage is determined by rear-panel VPL settings.)
Green SIG to -4 Indicates output signal levels in normal operating range.
SIG+HI-IMP (green / red) Indicates input signal above -44dB. Should the SIG
indicator turn red, this indicates a "high-impedance" or open connection has been
detected at the output. Possible faults include a disconnected cable or
malfunctioning loudspeaker. (In some cases a normal condition, such a sub-bass
enclosure with high-impedance at a certain frequency, can trigger this
indication.) If the -10dB LED illuminates and the HI-IMP LED turn red, then the
amplifier has detected an open load (no loudspeaker connected).
Level adjust
Level adjust potentiometers (one per channel) are located on the front panel adjacent
to the LED display. The potentiometer's operational range is 0dB to minus infinity.
Mute indication
Individual channel Mute is indicated by illumination of the red Mute LED provided for
each channel.
Performance, Warning and Fault indicators:
Global Indicators:
Power on / off (green) indicates that mains power is switched on.
PAL, Power Average Limiter (red), indicates that the amplifier is limiting because
the power supply and / or the mains-inlet fuse has reached maximum capability.
TD10000Q
Front Panel
Rear Panel
Operation and Performance
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