The tuners I have are the ST-S311 and the ST-361 - BOTH have EXACTLY the same fault.

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I have never been a fan of Sony - apart from certain models of FM tuners with the narrowband facility and for quite some time I have always rated Sony tuners quite high.

Very recently I was using a Sony ST-S311 tuner of which was fine until one day late last year when it started to constantly mute itself for a split second every few minutes.

At first I put this down to problems with the station I was listening to.then after trying it on other stations, I had the same problems: muting for a split second and the stereo light flicker as it is muting.

I then decided to look for another Sony tuner on a local website and at the right price for its superb condition.only a different model but still narrowband.

Are these Sony tuners all the same I wonder Note: both Sony tuners are narrowband have an attenuator and both have twin FM aerial sockets and I have switched aerials - and the problem is still there.

Just wondering if this is an intermittant problem with all sony tuners:rolleyes.

If nobody on this forum knows, then maybe try a forum on Yahoo Groups: For instance, this posting from a few months ago suggests that posters on that group have good knowledge of the tuner you are discussing: Good luck Phil.

Funnily enough, I used to use a Sony ST-SA3ES tuner, which eventually developed what may have been a similar fault.

It started as crackling every so often, then split second losses of signal, and eventually it became so unreliable it would lose all reception for minutes at a time or more.

After speaking to someone on the Skywaves group we came to the conclusion that a dry solder joint was the culprit.

It seemed to be in the front-end box, as in the end i had the cover off the tuner and would give the front-end a tap to wake it up It may not be the same problem as yours but it sounds similar.

Split Second Tuning Software