manoj.patil.1974
New Member
Hi, My brother gifted me a Duraband CR-502 AM/FM clock radio. Its a low cost item,but its precious for me as its a gift by my brother. This was brought in the USA so obviously it would not work in India as we have 230V, 50Hz. I opened the box, replaced the 110V transformer with a 230v/12V step down transformer. Incidently this item uses a SC8560 digital clock IC which supports both 50Hz/60Hz selected. I have made the jumper settings to select 50Hz. I was so happy that i could make this work.... but i am facing a new problem. The instrument runs perfectly fine now, but it slows down by 4 minutes for every 8 hrs. This means that the line frequency here is NOT accurately 50Hz and I guess it must a bit low (may be 49Hz).
What can be a smart solution ?? Are there so low cost crystal controlled IC's available ? can some suggest me an IC that would just be suitable for this purpose. request you to kindly copy the reply at manoj.patil.1974@gmail.com too.. regards
What can be a smart solution ?? Are there so low cost crystal controlled IC's available ? can some suggest me an IC that would just be suitable for this purpose. request you to kindly copy the reply at manoj.patil.1974@gmail.com too.. regards