My sony hdc ec55 mini hi fi system works everything fine except tuner.

When you push the auto scan button on a radio tuner, the tuner will automatically scan through the available frequencies (also known as a "band") and stop on any station that it finds. The radio will then display the frequency or channel of the station and allow you to listen to the broadcast. The process of auto scanning can vary depending on the specific model of radio tuner that you are using, but in general it is a quick and easy way to find all of the available stations in a particular band. Some radio tuners may also allow you to save the stations that you find during the auto scan process, so that you can easily access them in the future without having to rescan.

You need to have the fan in the check,possibly its not working anylonger

Hey so one of my outputs in my sony mhc-ec55 has stopped working recentley so i can only use one speaker at a time,does anyone here possibly know the cause and a way i can fix this myself,i dont have alot of electircal or audio knowledge but if you could give me the steps to a solution it would be much appreciated because i dont have money to bring it to a shop

If the rest of the set works fine then it is possible that the front end of the tuner is faulty. can be failure of the RF section , a possible failure of voltage to the TUNER/RADIO section . Check also if the logic switch is workingg to switch the TUNER and also if the processor is working to TUNE.

If you've already tried to clean the lens then with no improvement then its down to the laser having failed.

In some cases these are availble as a replacement part but aren't normally cost effective.

This usually means an overload. On my daughter's system it was because she had extended the speaker wire and where she has spliced the wires the two sides were touching. Try un-hooking your speakers and turn on the system. If it works without shutting off then you can reconnect the wires one speaker at a time. Maybe you have a short in the wire or speakers.

Ok to set Manually Turn on radio Select Tuner select band. Press tuning mode button. The window should switch from preset to manual then tune up or down using the tuning preset time buttons left side/ top / Next to volume knob

check to maks sure you have an fm antenna connected

Hi,
I don't think you can do that if your system was not designed for the additional speakers and a subwoofer. Your system is not a Home Theater surround sound system.
You could add the additional speakers by splicing the speaker wires but I wouldn't recommend it and it would not work like a true surround sound system.

Unit probably has bad drive motor