Roland SRA-200E инструкция обслуживания

Main Features • Lightweight, Compact, and Energy-Efficient Employing the latest developments in high-efficiency amplifier technology, the SRA-200E packs a powerful 100 watts per channel (at 8 ohms); yet it weighs a mere 5.0 kilograms, consumes only half the current, and generates just one-third the heat of previous power amps (in actual operation[...]

CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN ATTENTION : RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR CAUTION : TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to aler[...]

• Before using this unit, make sure to read the instructions below, and the Owner's Manual. ......................................................................................................... • Do not open or perform any internal modifications on the unit. ..............................................................................[...]

Impor tant Notes In addition to the items listed under “IMPORTANT SAFETY INSTRUCTIONS” and “USING THE UNIT SAFELY” on pages 2 and 3, please read and observe the following: Power Supply • Do not use this unit on the same power circuit with any device that will generate line noise (such as an electric motor or variable lighting system). •[...]

Names and Functions Front Panel 1. Attenuator This adjusts the level of what is output to the speakers. Adjust for the most suitable volume according to the input level of the connected device. *W hen set to BTL mode, volume is adjusted with the Channel A attenuator. (BTL Connection → p. 8) 2. LEVEL Indicators Output is indicated by these 5-step [...]

Rear Panel INPUT 1. INPUT Connector (XLR-3-31 Type) * The pin assignment for the XLR type connectors is as shown below. Before making any connections, make sure that this pin assignment is compatible with that of all your other devices. 2. INPUT Jack (TRS Standard Phone Type) Connect using quarter-inch TRS phone type when input is balanced, and con[...]

4. INPUT LEVEL Switch This switches the input sensitivity (+4 dBm/-10 dBm). Select the setting appropriate for use with your system. 5. MODE Switch Switches the unit between the STEREO and BTL modes. Select the mode that is appropriate for your configuration ( → p. 8, 9). STEREO : Channel A and Channel B work independently of each other. In this [...]

Connecting Other Devices Stereo Connection Channel A and Channel B may operate independently. In this mode, the SRA-200E functions as a stereo power amp, with 100 watts per channel (at 8 ohms). ● MODE switch: Set the MODE switch on the rear panel to "STEREO." ● Connecting input: Connect the input carrying the left signal to the Channe[...]

Parallel Connection Contacts for each of the SRA-200E's three types of input connectors (XLR-3-31, TRS standard phone, and screw type) are wired in parallel internally, so signals can be output unchanged and then input again at a separate device's connector, allowing connection of a multiple number of power amps. *W ith parallel connectio[...]

Precautions When Connecting and T urning on the Power ● To prevent malfunction and/or damage to speakers or other devices, always turn down the volume, and turn off the power on all devices before making any connections. ● Do not connect anything other than speakers to these terminals. ● Connect speakers rated at 4 ohms or higher; or if using[...]

Tips about Connection ● Connections can be made using banana plugs and large-diameter cables. However, be sure only to connect cables specifically made for use with speakers. Use of cables (such as shielded cables) that accumulate significant static electricity can cause power amp overload, overheating, and damage to the equipment; do not use suc[...]

About the Pr otection Circuits The SRA-200E features special circuitry to protect the amp and any connected devices. Whenever this is activated, the PROTECTION indicator lights, and sound is cut off from the speakers. Stop operation of the equipment, and immediately check to find the cause of the problem. 1. Thermal Protection Circuit—Protects th[...]

About Rack Mounting (Notes on Heat Dissipation) The SRA-200E uses a combined simple air- cooled/forced-air cooling system. When the forced-air cooling fan is activated, cooler air from outside the amp is drawn in through the intakes in the top and bottom panels, and the air heated by the amp's interior is expelled through the vent (see figure [...]

Tr oubleshooting There is no sound ● Check to make sure the attenuators are not rotated too far counterclockwise. ● Check to make sure the speaker cables are not shorted and that the speaker impedance is not less than 4 ohms. If the speaker cable's + and - wires are shorted, or if speakers of less than 4 ohms impedance are connected, the P[...]

Main Specifications • Rated Power Output 100 W x 2 (stereo, 8 ohms load, 1 kHz, 0.1 % or less THD) 150 W x 2 (stereo, 4 ohms load, 1 kHz, 0.1 % or less THD) 300 W (BTL, 8 ohms load, 1 kHz, 0.5 % or less THD) • Frequency Response 20 Hz to 50 kHz (+0/- 1 dB, 1 W/8 ohms) • Input Impedance Balanced Input: 10 k ohms Unbalanced Input: 10 k ohms •[...]

16 Dimensions 16"-15/16 19" 13"-1/16 1"-15/16 1"-3/4 5/16 1 1"-5/8 1/4[...]

Index Air Vent ............................................................................................................................................................7,13 Attaching the Rubber Feet ................................................................................................................................13 Attenuator ......[...]

Information When you need repair service, call your nearest Roland Service Center or authorized Roland distributor in your country as shown below. As of June 1, 2002 (Roland) ARGENTINA Instrumentos Musicales S.A. Av.Santa Fe 2055 (1123) Buenos Aires ARGENTINA TEL: (011) 4508-2700 BRAZIL Roland Brasil Ltda Rua San Jose, 780 Sala B Parque Industrial [...]