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Details on correct fuse size, type, and replacement procedure.
Information on the universal power supply voltage range (88-264 VAC).
Guidance on using a grounded IEC power cord for safe operation.
Warnings against unauthorized modifications that may create hazards.
Advises that only qualified technicians should service the unit.
Explains the primary display and its interactive buttons like BRIGHTNESS, SETTINGS, BALANCE, and -20dB.
Recommends balanced connections for superior signal quality and noise reduction.
Discusses professional (+28 dBu) and consumer signal level differences.
Advice on choosing components with professional-grade balanced interfaces.
Explains how to use trigger ports for system power sequencing.
Instructions for connecting and configuring the AHB2 power amplifier.
Guidance on connecting and configuring Benchmark DAC models.
How to cycle through and select available audio inputs.
Details on gain stages, unity gain, and level differences between outputs.
Instructions for adjusting the left/right audio output balance.
How to mute audio outputs with fade-in/out capabilities.
Explanation of the function for temporary volume reduction.
Overview of accessing and navigating the advanced settings menus.
Covers maximum screen brightness and brightness when dimmed.
Details screen dim timer and wake-on-volume functions.
Covers renaming, enabling, and disabling audio inputs.
Adjusting volume presets and boost levels for each input.
Enabling or disabling the automatic power-on feature.
Setting the trigger behavior to Auto, Master, or Slave.
Activating the IR sensor for remote operation.
Linking remote control with a connected Benchmark DAC.
Details shown on the screen during unit startup.
Resets most settings, excluding custom input names.
Performs a full factory reset of all unit settings.
Details the 256-step relay gain control and its precision.
Explains the internal fully-balanced signal routing.
Highlights their role in rejecting common-mode noise.
Discusses the 0.1 Hz to 500 kHz frequency response and timing.
Advantages of balanced XLR connections for signal quality.
Performance of unbalanced RCA connections and their limitations.
Using the BOOST function to match input signal levels.
Setting input-specific output levels via presets.
Configuring automatic power-on using switched AC outlets.
Explanation of the trigger system's input/output capabilities.
Default mode for trigger ports, configuring as input or output automatically.
Using the LA4 as a trigger master (output only).
Using the LA4 as a trigger slave (input only).
Shows THD performance across various gain settings (-15 dB to +15 dB).
Detailed specifications for balanced line outputs.
Detailed specifications for unbalanced line outputs.
Information on fuse type, rating, and replacement procedure.
Confirms the universal power supply's voltage compatibility.
Reiterates the need for a grounded IEC power cord.
Statement regarding compliance with FCC Class B digital device limits.
Details the standard warranty against material and workmanship defects.
Information on purchasing an optional five-year extended warranty.
Details on an optional two-year international extended warranty.
Instructions for obtaining an RMA and shipping products for repair.
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