Table of Contents
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Table of Contents
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Summary of Contents for Sherbourn PA 2-250
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Page 3: Important Safety Precautions And Explanation Of Symbols
Always install your PA 2-250 according to the manufacturer’s instructions and only use attachments or accessories specified by the manufacturer. Do not install the PA 2-250 on any stand, shelf, or other piece of furniture that is unable to support its weight. - Page 4 If the provided plug does not fit your outlet, consult an electrician to replace your outlet. If you replace the PA 2-250 power cord, only use one of similar type and of equal or greater current rating.
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Page 5: Fcc Interference Statement
3. Connect the equipment into an outlet on a circuit different from that of the receiver. 4. Consult the dealer or an experienced radio/TV technician for help. For questions regarding service, please contact: Sherbourn Technologies, Inc. 131 SE Parkway Court Franklin, Tennessee... -
Page 6: Table Of Contents
PA 2-250 STEREO POWER AMPLIFIER Contents Important safety precautions and explanation of symbols Introduction ....................2 The PA 2-250 ....................2 About this manual ..................2 Mechanical and environmental ..............3 Inputs and outputs ..................4 Installation tips ....................5 Configuration ....................6 Performance specifications ................7 Features .....................8 Operation ....................9... -
Page 7: Introduction
2-250 Stereo Power Amplifier to achieve its optimum potential. This manual also includes a brief summary of the features offered by the PA 2-250, a short description of how the controls work, and instructions on how to perform common operations. -
Page 8: Mechanical And Environmental
Mechanical and Environmental SIDE PA 2-250 SHERBOURN PA 2-250 19” 18” RACK HANDLES 1/16” 17” 19” FRONT 5.125” 6” Dimensions: 17 ” wide x 6” high x 19” deep (includes feet, binding posts, no rack ears) (boxed: 22” x 24” x 11” high) Weight: 48 lbs/22 kg (unboxed);... -
Page 9: Inputs And Outputs
Inputs and Outputs Analog inputs: Each channel has independent, switch selectable balanced (XLR) and unbalanced (RCA) inputs. Unbalanced inputs are audiophile grade, machined, gold-plated connectors. Input sensitivity (for full output): 1.7 V (8 ohms); 1.5 V (4 ohms) Speaker outputs: 5-way binding posts, gold plated Minimum recommended load impedance: 4 ohms (one 4 ohm load or two paralleled 8 ohm loads per channel) -
Page 10: Installation Tips
When the PA 2-250 is in Standby mode (On/Off LED is lit red), asserting a trigger signal turns the PA 2-250 on, and it remains on until the trigger is no longer asserted. If the trigger signal is already active when mains power is applied, the PA 2-250 will switch on as soon as it completes self-test, and will switch to Standby when the trigger is no longer asserted. -
Page 11: Configuration
Configuration • Verify that the Sherbourn PA 2-250 is configured for the correct operating voltage for your area. (Voltage is set via the Input Voltage switch on the rear panel of the PA 2-250). • Verify that all rear panel Input Selector switches are set correctly (balanced or unbalanced) for each input. -
Page 12: Performance Specifications
If a fault occurs, the PA 2-250 will automatically power down and the front panel status LEDs will indicate the faulty channel(s). The On/Off LED and the Channel Status LED for the channel with the fault will flash red;... -
Page 13: Features
Intelligent protection from thermal faults and overheating • Convection cooled • Massive toroidal power supply • Rack mountable • 5-year Limited Warranty You can find more information about the PA 2-250 Stereo Power Amplifier on our web site at http://www.sherbourn.com. Page 8... -
Page 14: Operation
When the PA 2-250 is in Standby mode, the single LED next to the front panel On/Off switch (the On/Off LED) will be lit red; when the PA 2-250 is On, the On/Off LED and the two channel status LEDs will be lit blue (Channel Status LEDs will NOT be lit if the rear panel Status LED switch is set to Off). -
Page 15: Periodic Maintenance
If necessary, the PA 2-250 should be cleaned gently with a soft rag. • If something sticky gets on the front panel or case of the PA 2-250, it should be cleaned with a mild cleaning solution applied to a soft rag, followed by wiping with a clean rag dampened with plain water, and drying with a soft dry rag or cloth. -
Page 16: Troubleshooting
Troubleshooting If problems occur, the first step should be to verify that the PA 2-250 is set to the proper line voltage for your AC power source and that your power source is operating correctly. Problem: No sound is heard from any channel (the On/Off LED is not lit) You have no AC power •... -
Page 17: 10-Year Limited Warranty
LIMITATION MAY NOT APPLY TO YOU. A claim under this warranty must be made by you within the Term. A claim shall not be valid (and Sherbourn has no obligation related to the claim) if it is not made within the Term and if it is not made in strict compliance with the requirements of the “How do you get service?”... -
Page 18: Notes
The CSR will provide you with a returned material authorization number (“RMA”). Ship the product to Sherbourn at the following address, with the RMA written in large, bold letters on the outside of the box, and with the letters “RMA” written before the number. Parcels arriving without a RMA number on the outside of the box will be refused.
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