Roland DS-30A owner manual Reference, Troubleshooting, Specifications, There’s No Sound

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Reference

Troubleshooting

If there is no sound or if the unit does not operate as you expect, please check the following points first. If this does not resolve the

problem, contact the nearest Roland service center or authorized Roland distributor.

There’s No Sound

Make sure the Input Level control has not been turned fully counterclockwise.

Make sure the Input Select switch has been set to the connector where the input signal is connected (Digital Input or Analog Input).

Make sure the Digital Input select switch has been set to the connector where the input signal is connected (Optical or Coaxial).

Input a digital signal to the Digital Input connector. No

sound is produced when an analog signal is input.

926

The volume level of the instrument connected to ANALOG INPUT is too low

Could you be using a connection cable that contains a resistor? Use a connection cable that does not contain a resistor.

During Digital Signal Input, the Stereo Image Is Reversed or Sounds Unnatural, or Output Doesn’t Sound Like Stereo

Check the setting of the Assign switch (Right, L+R, or Left). The DS-30A uses an identical construction for the left and right monitors, and makes no distinction between left and right. During digital signal input, set the Assign switch L or R as appropriate for your setup.

Specifications

System

2-Way Bi-Amplified Monitor

Enclosure Bass-reflex type

Cabinet

1/2" PB (Baffle: 5/8" MDF)

LF Driver

120 mm (5") Foamed polypropylene cone type, magnetically shielded

HF Driver

25 mm (1") Soft dome type, magnetically shielded

Frequency Response

78 Hz to 20 kHz (+/-3 dB)

Crossover Frequency

2.3 kHz (active third order)

LF Amplifier Power 20 W

HF Amplifier Power 10 W

Analog in

Input Sensitivity

0 dBu (0.775 Vrms)

Input Impedance

20 k ohms (Balanced/Unbalanced)

Digital in

Format

Conformity with S/P DIF

Sample Rate

32 kHz to 96 kHz (de-emphasis: OFF)

D/A Converter 24 bits

Controls LEVEL Knob

LF TRIM Knob (80 Hz, +/-3 dB) HF TRIM Knob (10 kHz, +/-3 dB)

INPUT SELECT SW (Analog In/Digital In) ASSIGN SW (Right/L+R/Left)

DIGITAL INPUT SELECT SW (Optical/Coaxial)

POWER SW

Indicators

POWER DIGITAL IN

Connectors

ANALOG INPUT (XLR / 1/4 inch TRS phone type) DIGITAL INPUT (Optical)

DIGITAL INPUT (Coaxial) DIGITAL THRU OUT (Coaxial)

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Contents Digital Input Pursuit of High Sound QualityAnalog Input Magnetically Shielded Low- and High-Frequency DriversAvis Important Safety Instructions Page Table of Contents Important NotesPanel Descriptions Coaxial Input Connector Digital InputOptical Input Connector Digital Input FrontPanel Descriptions Level Control Thru Digital Out ConnectorInput Select Switch HF Trim ControlConnection Examples Using Two DS-30A Monitors for Stereo SoundTips about high sound quality playback Connection Examples Important Notes on PlacementPrecautions When Connecting and Turning on the Power Heated AirReference TroubleshootingSpecifications There’s No SoundFrequency Response DimensionsReference 02901001 2RCC