The Yamaha RX-830 is a stereo audio and video receiver that was designed as part of Yamaha's "Natural Sound" line of home audio equipment. The receiver has a maximum 70W output, 0.015 per cent total harmonic distortion and 20 to 20,000 Hz. full-range audio signal. The Yamaha RX-830 receiver has been discontinued by Yamaha, but used units are still widely available, and some spare parts can still be found through private technicians. Most average consumers can diagnose some problems and fix them at home, including one common problem: a dead or very low output audio channel.
- Skill level:
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Things you need
- Padded workbench or flat surface
- Towel or blanket (optional)
- Screwdriver (if necessary)
- Replacement fuses
- Cable tester (optional)
Disconnect the cabling connecting the receiver to other audio components. Unplug the receiver's power cable from the wall or surge protector. Allow the device to rest for a few minutes if it has been on for a long time.
Place the receiver face down on a padded workbench or flat, steady surface with a towel on top to avoid scratching the receiver and work surface.
Locate the fuse panel or area where the fuses are kept on the back of the receiver. Remove the main power fuses for the offending channel. If the fuse panel requires removal, a regular screwdriver usually works.
Check the fuses under a bright lamp to see if they are blown or have cracked filaments. Even a small crack in the filament of a fuse can result in low volume output and improper function. A fuse that is fully blown is generally black around the edges of the glass tubing or on the silver contacts.
Replace any damaged or blown fuses with a new fuse of the same type. Never use a fuse that has a different voltage than required. This can result in serious internal damage to the amplifier over time or simply keep the amplifier from functioning properly.
Move the amplifier back into place and connect it to the audio components. Plug the power cable in and check to make sure that the device is working.
Tips and warnings
- If fuses do not seem to be the problem, test the cabling with a cable tester for continuity or by using the cable on an audio device that you know is working properly.
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