Question about RCA RP5430 Clock Radio

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RCA RP5435B SN.1A006J255A0594-Clock running slow

Purchased at Rhode Island USA, now being used at INDIA.
From day i, (from starting itself ) clock is running slow by 5-7 minutes per hour.
Even after resetting the clock to current time, clock is runnning slow and the problem is continuing to exist.
Please support me to solve the problem

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  • rgmurthi Sep 20, 2008

    We purchased this RCA 5435B S.No.1A006J255A059,at RI.,USA,on 19th August,2008.

    I am surprised that this new clock is running slow by 5-7 mts per hour progressively,right from Day 1.

    Please advise me ,as to how I can solve this problem.As this is brand new and under warranty,please dont askme for payment for this.

    I will appreciate a quick response from a reputed manufacturer like RCA Products.


  • Anonymous Oct 17, 2008

    Bought my RCA radio at Target in Texas and I have the same problem... only it's only 3-4 minutes slow!



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Most of the Radio clocks by RCA are meant to be used with 60Hz AC line. This problem will not go away unles you can get a custom built 60 Hz AC power supply, may prove to be too expensive for the clock.

Posted on Sep 30, 2008



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This problem is cause by the difference in the power delivery system in the USA(60HZ) and India (50HZ). The timing function for these type of Clock/Radios depends on the power delivery system. It works like a second hand in a clock or watch. With the (60HZ) you get the perfect match with the 60 seconds to a minute time intervals. In India this timing sequence is thrown off due to the power being only (50HZ). I will give you the information to contact the Emerson customer support web page and the customer support telephone number. They may have a way to make adjustment internally to compensate for the differences. The web page for customer support is[] The telephone number is 1-800-909-1240. You can call them between the hours of 8am and 4:30 pm Central Time USA. Go to the web site or Give them a call they might be able to help you. I hope this information helps you understand the problem you are having with the power differences and the timing of the Clock/Radio. Thank you for using Fix Ya and have a nice day!

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The problem is most likely the frequency of the A/C power there. In the US our power runs at 60 cycles p/second and the alarm clock uses this to set the time. Sounds like India is running 50 cycles like Europe does. Most likely there is a jumper in the clock because the Ckt board on mine shows a 50/60 hertz setting but with out the board schematics I wouldn't have a clue how to fix it. Sorry not to help more...

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