kkdeep 6 Report post Posted July 25, 2011 I have a LED clock that i bought from USA. it works on 110V AC. It keeps time even when the power goes off. Unfortunately the person who brought it plugged it into India power supply without a step down transformer and something went wrong. Now the clock works but as soon the power goes off the time is reset. My apartment complex has a power backup but the backup needs couple of minutes to kick in. I can buy a UPS and run the clock from it but it will a overkill for a clock. I just need something which can give backup to this clock. Any ideas would be appreciated. -TIA Kuldeep Share this post Link to post Share on other sites
Genius 817 Report post Posted July 25, 2011 (edited) ^^ A UPS or an new clock may be u can use a delhi made DC to AC converter - its cheaper few 100 than inverter Edited July 25, 2011 by Genius Share this post Link to post Share on other sites
sgiitk 32 Report post Posted July 25, 2011 Clock being reset shown a malfunction in the battery backup cricuit. This should not be too difficult to diagnose and fix. Share this post Link to post Share on other sites
sougatadc 358 Report post Posted July 25, 2011 Generally plugging a US device into Asian voltage (without step-down transformer) damages the device itself. You are lucky, your clock is still working. The clock must be having a backup battery inside which keeps it ticking inside when display power is off. That backup battery at least have been damaged, if not some more power-section parts have been damaged. Get the backup battery replaced, I think that will solve your issue. Share this post Link to post Share on other sites
kkdeep 6 Report post Posted July 25, 2011 (edited) Thanks everybody for replies. That backup battery at least have been damaged, if not some more power-section parts have been damaged. Get the backup battery replaced, I think that will solve your issue. The clock needs a 9V external backup battery and i tried using a new one and it does not work. So as you rightly said some power circuit is damaged. I need to find somebody who can repair it. >>Clock being reset shown a malfunction in the battery backup cricuit. This should not be too difficult to diagnose and fix I have no idea who can do it >> may be u can use a delhi made DC to AC converter - its cheaper few 100 than inverter Please give me a bit more details on this, From where Can i buy this and all. BTW following is the clock-radio i am talking about. Homedics Soundspa Edited July 25, 2011 by kkdeep Share this post Link to post Share on other sites
Genius 817 Report post Posted July 25, 2011 ^^ if thats the clock radio go for new one as every thing else is expensive and time taking.. Share this post Link to post Share on other sites
