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Table of Contents
Related Manuals for Line Magnetic LM-503PA
Summary of Contents for Line Magnetic LM-503PA
- Page 2 OWNER’S MANUAL LM-503PA...
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Page 3: Table Of Contents
Thank you for choosing a Line Magnetic product. Its implementation has been our know-how, both in terms of design to the manufacturing. Electronic components and mechanical parts correspond to the selection criteria of very high quality. Operation and finish of each product have been checked before delivery. To obtain best results, please read the advice contained in this document. -
Page 4: Package Contents
User bias control has been used for bias adjustment and meters are available for monitoring the value. In the input stage it is selectable between Balance transformer input and RCA input. LM-503PA uses specially designed high grade EI type of Class A output transformer with wide bandwidth. Soft Start and time delay Circuit. -
Page 5: Specifications
Do not attempt to service this product yourself. Opening the cover may expose you to dangerous voltage or other hazards. Use only spare parts and accessories recommended by Line Magnetic. We are not responsible for any problems caused by checking and opening without permission of our company. For... -
Page 6: Recommendations
Electromagnetic Compatibility (2004/108/EC) and apply eco-design requirements for energy products (2009/125/EC) when the appliance is installed and used in accordance with the user manual. For continued compliance only Line Magnetic accessories must be used with this product and servicing must be performed by specialized and qualified staff. -
Page 7: Location And Precautions
Keep all packing materials for future use and please fill in the warranty card for registration of warranty. Your Line Magnetic product is covered by the legal warranty in force in your country. You may also have other rights which vary from country to country, state to state. -
Page 8: Functions Descriptions (Front View)
Functions descriptions Input voltage level of the amplifier is 240VAC ±5% and please, make sure that your local voltage is the same as indicated on the rear panel. A too low or too high voltage can cause serious damage to your amplifier. In case you find an improper voltage, please contact our company responsible for the power supply or your local dealer. -
Page 9: Functions Descriptions (Rear View)
Rear panel SELECTOR ~220V 50Hz 45W 0 Ω 4 Ω 8 Ω 16 Ω T5AL250V LM-503 PA Signal input: Inputs (RCA or XLR) are for connecting a preamplifier to your amplifier. It is designed to receive an analog signal (as opposed to digital signal). To connect your source we are using a traditional RCA cable, they are usually identified by a color code RED to the RIGHT channel and WHITE to the LEFT channel. -
Page 10: Bias Adjustment (Top View)
Top view Tubes V1: 845 V2: 300B V3: 310A V4: 5U3C HUM BALANCER: Hum adjustment screw for tube V2. HUM BALANCER: Hum adjustment screw for tube V1. BIAS CURRENT: Allows to view the tube V1 bias level on the ampere meter when the small handle is down and when the handle is up, you can see the bias level on the ampere meter for the V2 tube. -
Page 11: Speaker Connection
Speaker connection WARNING: Make sure that the device is not plugged into the mains before making any connections. It is also recommended to turn off or disconnect all other devices associated while making connections to the product. Never operate the amplifier without having first connect the loudspeakers. The operation of a tube amplifier is different from transistor amplifier;... -
Page 12: Audio Connection
Audio connection Use a RCA stereo audio cable (red and white plugs) to connect your sources. SELECTOR ~220V 50Hz 45W 0 Ω 4 Ω 8 Ω 16 Ω T5AL250V LM-503 PA 1- During installation please always refer to other product’s operation manuals. 2- Please do not insert the power cord into the main socket until all sources are connected. -
Page 13: Turning On
Line Magnetic Audio reserves the right to change specifications at any time without further notice in advance if products are upgraded. Specifications on the manual only show the specifications of the amplifier you’ve bought. -
Page 14: Tube Replacement
Tube replacement Basics tubes Common replacements 5U3C 2748, 5931 310A Soviet Union/om12C, WE 310A 300B 300B, 300A, 4300B 845 A/B/C Maintenance WARNING As a precaution, it is best to unplug the unit before handling and ensure the heat generated by the product has been properly dissipated. -
Page 15: Troubleshooting
IR sensor located on the front of the amplifier. The LM-503PA is designed and manufactured with our original parts to achieve the best results. Line Magnetic is not responsible for problems or damage caused by non-original parts being used in the unit. - Page 16 Line Magnetic Australia Pty Ltd Email: service@line-magnetic.com.au www.line-magnetic.com.au...
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