Yamaha RX-V740 Service Manual (English)

Other manuals for Yamaha RX-V740

Questions and Answers:

C
Curtis MuellerAug 22, 2025
What to do if my Yamaha RX-V740 fails to turn on?
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  Peter TuckerAug 22, 2025
  If your Yamaha Receiver fails to turn on, consider the following: * Ensure the power cord is firmly connected. * Verify the IMPEDANCE SELECTOR switch on the rear panel is fully set to either the left or right position. * Check speaker wire connections to ensure they are secure and not touching anything else, as the protection circuitry might be activated. * If the unit experienced a strong electric shock, set it in standby mode, disconnect the power cord, plug it back in after 30 seconds, and try again.
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Stephanie SummersAug 23, 2025
Why is there no sound coming from my Yamaha RX-V740?
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  Denise IbarraAug 23, 2025
  If you're not getting any sound from your Yamaha Receiver, check these potential causes: * Ensure all input and output cables are correctly connected and not defective. * Select the appropriate input source using INPUT or 6CH INPUT (or the input selector buttons). * Make sure the speaker connections are secure. * Select the main speakers with SPEAKERS A and/or B. * Increase the volume and ensure the unit is not muted by pressing MUTE or any operation buttons. * Confirm that the source component is playing signals that the unit can reproduce.
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Gregory SmithAug 25, 2025
What to do if the remote control of my Yamaha RX-V740 Receiver does not work?
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  katherine04Aug 26, 2025
  If the remote control for your Yamaha Receiver isn't working, try these solutions: * Ensure you are within a 6 m (20 feet) range and within 30 degrees off-axis from the front panel. * Replace all the batteries with new ones. * Set the manufacture code correctly and try setting another code of the same manufacturer.
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Stephen WilliamsAug 27, 2025
Why does my Yamaha RX-V740 Receiver display “CHECK SP WIRES”?
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  amandamillerAug 27, 2025
  If your Yamaha Receiver displays “CHECK SP WIRES” on the front panel, it indicates that the speaker cables are short-circuited. Ensure all speaker cables are connected correctly.
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Alejandra GreenAug 27, 2025
What to do if the sound suddenly goes off on my Yamaha RX-V740?
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  Jessica FischerAug 27, 2025
  If the sound suddenly cuts off on your Yamaha Receiver, here's what you can check: * The protection circuit may have been activated due to a short circuit. Verify the IMPEDANCE SELECTOR switch is in the correct position and then restart the unit. * The sleep timer might have turned the unit off. Turn the power back on and resume playing the source. * The unit might be muted. Press MUTE or any operation buttons to cancel mute and adjust the volume.
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Daniel PrinceAug 29, 2025
How to fix a Yamaha RX-V740 Receiver with FM stereo reception noisy?
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  dominguezdavidAug 29, 2025
  Noisy FM stereo reception on your Yamaha Receiver can be caused by the transmitter being too far away or poor antenna input. Check the antenna connections and consider using a high-quality directional FM antenna.
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Michael FosterAug 30, 2025
What to do if there is no sound from the subwoofer of Yamaha Receiver?
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  Lisa KramerAug 30, 2025
  If there is no sound from the subwoofer of your Yamaha Receiver, check these settings in the set menu: * If “SOUND 1E BASS” is set to MAIN while playing a Dolby Digital or DTS signal, change it to SWFR or BOTH. * If “SOUND 1E BASS” is set to SWFR or MAIN while playing a 2-channel source, change it to BOTH.
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Gloria WilliamsAug 31, 2025
How to fix poor bass reproduction on Yamaha RX-V740 Receiver?
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  Latasha VasquezAug 31, 2025
  Poor bass reproduction on your Yamaha Receiver can be addressed by checking these settings: * If “SOUND 1E BASS” is set to SWFR or BOTH and you don't have a subwoofer, select MAIN. * Ensure the speaker mode settings (main, center, rear, or rear center) on the set menu match your speaker configuration. Select the appropriate position for each speaker based on their size.
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diane43Sep 1, 2025
Why is only the speaker on one side audible on my Yamaha RX-V740?
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  Shane SextonSep 2, 2025
  If you're only hearing sound from one speaker on your Yamaha Receiver, the issue is likely due to incorrect cable connections. Ensure all cables are properly connected. If the problem persists, the cables may be defective.
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tracy27Sep 3, 2025
What to do if my Yamaha RX-V740 Receiver is making a humming sound?
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  Jodi WalkerSep 3, 2025
  If you hear a humming sound from your Yamaha Receiver, try these solutions: * Ensure all audio plugs are firmly connected. If the problem continues, the cables may be defective. * If using a turntable, connect its grounding cord to the GND terminal of the unit.

Yamaha RX-V740 Specifications

General

Type	AV Receiver
Channels	6.1
Amplifier Type	Discrete
Total Harmonic Distortion (THD)	0.06%
Input Sensitivity	200 mV
Input Impedance	47 kOhms
Signal to Noise Ratio	100 dB
Frequency Response	10 Hz - 100 kHz
Digital Inputs	3 x Optical, 2 x Coaxial
Video Connections	Composite, S-Video, Component
Video Outputs	Composite, S-Video
Surround Sound Modes	Dolby Digital, DTS, Dolby Pro Logic II
Power Output	100 watts per channel (8 ohms, 20 Hz - 20 kHz, 0.06% THD)