Hi!
I have a walkman and i have managed to repair it somehow but there is a problem with it in the AM and FM band.In the AM band there is so much noise that it is difficult to listen any recption while tuning it but when a station is tuned properly the reception is clear when it is connected to my AC Adaptor this problem persists but it works properly when operated by two AA size cell,i am unable to remove the HUM of the AC Adaptor.I have replaced the filter capacitor with higher value(upto 1000uf/16V & 1000uf/50V) and used an inductor indeed but nothing works and the problem with the FM band is that it is picking up so many new stations(like CHINA RADIO INTERNATIONAL,CHANNELS OF ARABIC LANGUAGE i guess probably from pakistan or Afganistan but i am not sure about that etc.) which i never heard before while using it before i repaird it,sometimes these channels are also heard on the AM band and
sometimes don't.Well it is also picking up some cable channels like STAR MOVIES as there is a cable amplifier installed about 30-40 meter away from my room.The make of the walkman is CASIO.please help me why this is happenning and how i can rectify these problems?
I have a walkman and i have managed to repair it somehow but there is a problem with it in the AM and FM band.In the AM band there is so much noise that it is difficult to listen any recption while tuning it but when a station is tuned properly the reception is clear when it is connected to my AC Adaptor this problem persists but it works properly when operated by two AA size cell,i am unable to remove the HUM of the AC Adaptor.I have replaced the filter capacitor with higher value(upto 1000uf/16V & 1000uf/50V) and used an inductor indeed but nothing works and the problem with the FM band is that it is picking up so many new stations(like CHINA RADIO INTERNATIONAL,CHANNELS OF ARABIC LANGUAGE i guess probably from pakistan or Afganistan but i am not sure about that etc.) which i never heard before while using it before i repaird it,sometimes these channels are also heard on the AM band and
sometimes don't.Well it is also picking up some cable channels like STAR MOVIES as there is a cable amplifier installed about 30-40 meter away from my room.The make of the walkman is CASIO.please help me why this is happenning and how i can rectify these problems?