1. Home
  2. Electronics Repair
  3. Issues with the stereo tuner TEAC T-X120

Issues with the stereo tuner TEAC T-X120

Hi everybody,

I'm trying to fix a stereo tuner TEAC T-X120 I've received from a friend of mine, this tuner shows issues when in FM:

  1. The automaic search of the FM radio stations seems not to work, you can eventually start it, the receivers seems to run thru the FM frequencies, but no station found/tuned.

  1. You can tune manually a radio station only in MONO, if you try to switch to STEREO the receiver stays silent, the STEREO leds stays down, nothing can be heard then.

Obviously I've used a new FM dipole, no changes... Any clues/advices ? Thank you all and hi from Italy.

Franco.

Reply to
TFranco60
Loading thread data ...

The discriminator adjustment is off. This is actually a very common problem for digital tuners. There are two discriminator adjutments in a typical tuner. One adjusts the station centering (I suppose you could call it a "zero-cross" point), the other affects the distortion more. For this reason this alignment should be done in a shop by a qualified tech. In rare cases an out-of-spec 7.2 mHz crystal could cause the same symptom.

Mark Z.

Reply to
Mark D. Zacharias

Mark,

that was it... thanks to a friend of mine who helped me with his oscilloscopen we could easily fix the issue and now the tuner is back to life. Thank you so much !

Franco.

Reply to
TFranco60

ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.