Yamaha TX-497 Service Manual (English)

Other manuals for Yamaha TX-497

Service Manual32 pages

Questions and Answers:

N
nathaniel21Aug 19, 2025
Why is the FM stereo reception noisy on my Yamaha Tuner?
- C
  cainjulieAug 19, 2025
  Noisy FM stereo reception on your Yamaha Tuner can occur if the transmitter is too far away or the antenna input is poor due to the characteristics of FM stereo broadcasts. Check the antenna connections and consider using a high-quality directional FM antenna. Alternatively, setting the TUNING MODE button to the manual tuning mode and using the manual tuning method might improve the reception.
J
Jacob MillerAug 21, 2025
What to do if the desired station cannot be tuned in with the automatic tuning method on Yamaha TX-497?
- A
  angelaoliverAug 21, 2025
  If you can't tune into the desired station automatically on your Yamaha Tuner, it could be due to a weak signal. Try using a high-quality directional FM antenna. You can also try using the manual tuning method.
K
Karen MackAug 23, 2025
Why is the ST indicator flickering and the reception noisy on my Yamaha Tuner?
- R
  Richard SnyderAug 23, 2025
  If the ST indicator flickers and the reception is noisy on your Yamaha Tuner, it might be due to insufficient antenna input. Use an antenna appropriate for the reception conditions in your area. Also, ensure the station is correctly tuned in.
M
Melissa DeanAug 26, 2025
Why can't I tune in previously preset stations on my Yamaha Tuner?
- T
  Todd ParsonsAug 26, 2025
  If you can no longer tune in previously preset stations on your Yamaha Tuner, it might be because the power cord has been disconnected from the AC outlet or the unit has been turned off for more than one week. In this case, preset the stations again.
A
Amanda MendozaAug 28, 2025
How to fix occasional crackling noises on Yamaha Tuner?
- E
  Edward FosterAug 28, 2025
  Occasional crackling noises on your Yamaha Tuner, especially in weak signal areas, may be due to noise from motors, thermostats, or other electrical equipment. To resolve this, position the FM antenna as high as possible, away from roads and digital or high-frequency equipment. Use a coaxial cable and attach a noise suppressor to the equipment causing the noise.
E
eric77Aug 30, 2025
What to do if I cannot tune in the desired station with the automatic tuning method on my Yamaha TX-497?
- G
  George KellyAug 30, 2025
  If you cannot tune in the desired station with the automatic tuning method on your Yamaha Tuner, the signal might be weak, or the antenna connections might be loose. Tighten the AM loop antenna connections and orient it for the best reception. Also, try using the manual tuning method.
A
Ashley WeberSep 1, 2025
How to eliminate distortion on Yamaha Tuner?
- M
  Mckenzie EvansSep 1, 2025
  If you experience distortion and cannot get clear reception even with a good FM antenna on your Yamaha Tuner, there may be multipath interference. Adjust the antenna position to eliminate this interference.
C
Craig BarnesSep 4, 2025
How to stop continuous crackling and hissing noises on Yamaha TX-497 Tuner?
- C
  charleslloydSep 4, 2025
  Continuous crackling and hissing noises on your Yamaha Tuner can be caused by noise from lightning, fluorescent lamps, motors, thermostats, or other electrical equipment. Move the unit further away from digital or high-frequency equipment. Use an outdoor antenna and a ground wire. This may help, but it’s difficult to eliminate all noise.
M
myersmaxSep 6, 2025
Why is there no stereo effect even with a stereo broadcast on my Yamaha Tuner?
- J
  johnsonrogerSep 6, 2025
  If you're not getting a stereo effect even with a stereo broadcast on your Yamaha Tuner, the TUNING MODE button might be set to the manual tuning mode. Press TUNING MODE repeatedly until “AUTO” lights up in the front panel display.
A
ashley10Sep 8, 2025
What to do if Yamaha Tuner fails to turn on?
- M
  Mr. Scott HudsonSep 8, 2025
  If your Yamaha Tuner fails to turn on when the POWER button is pressed, ensure the power cord is firmly connected to the AC outlet. If it still doesn't turn on, and the unit has been exposed to a strong external electric shock, disconnect the power cord, plug it back in after 30 seconds, and then try using it normally.

U.K. and Europe models

Audio Output

FM Output Level	500 mV/2.2 kΩ
AM Output Level	200 mV/2.2 kΩ

FM Section

Tuning Range	87.50 to 108.00 MHz
Selectivity	70 dB
Signal to Noise Ratio Mono	75 dB
Signal to Noise Ratio Stereo	70 dB
Harmonic Distortion Mono	0.1%
Harmonic Distortion Stereo	0.2%
Stereo Separation	50 dB

AM (LW) Section

Tuning Range	153 to 288 kHz
Usable Sensitivity	400 µV/m
Selectivity	32 dB
Signal to Noise Ratio	50 dB
Image Response Ratio	40 dB
Spurious Response Ratio	50 dB
Harmonic Distortion	0.3%

General

Power Supply	AC 230 V, 50 Hz

Other models

Audio Output

FM Output Level	900 mV/2.2 kΩ
AM Output Level	150 mV/2.2 kΩ

FM Section

Tuning Range	87.50 to 108.00 MHz
Image Response Ratio	80 dB
Spurious Response Ratio	70 dB
Harmonic Distortion Mono	0.1%
Harmonic Distortion Stereo	0.2%
Stereo Separation	50 dB

AM Section

Tuning Range	531 to 1611 kHz

U.S.A. and Canada models

FM Section

Tuning Range	87.5 to 107.9 MHz
50 dB Quieting Sensitivity Mono	1.55 µV
50 dB Quieting Sensitivity Stereo	21 µV
Image Response Ratio	40 dB
Spurious Response Ratio	60 dB
Alternate Channel Selectivity	85 dB
Signal to Noise Ratio Mono	82 dB
Signal to Noise Ratio Stereo	76 dB

AM Section

Tuning Range	530 to 1710 kHz

General

Power Supply	AC 120 V, 60 Hz

Asia and General models

FM Section

Tuning Range	87.5/87.50 to 108.0/108.00 MHz
50 dB Quieting Sensitivity Mono	1.55 µV
50 dB Quieting Sensitivity Stereo	21 µV

General

Power Supply	AC 110–120/220–240 V, 50/60 Hz

Australia model

General

Power Supply	AC 240 V, 50 Hz

China model

FM Section

50 dB Quieting Sensitivity Mono	1.55 µV
50 dB Quieting Sensitivity Stereo	21 µV
Image Response Ratio	40 dB
Spurious Response Ratio	60 dB
Signal to Noise Ratio Mono	82 dB
Signal to Noise Ratio Stereo	76 dB

General