Question about GPX D516 Clock Radio

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Mains frequency is lower

I brought the clock into India and used a voltage converter. However, the mains frequency is 50 Hz and the clock runs slow. What can I do? Is it possible to change the clock locally without touching the IC?

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  • rvijay Oct 23, 2007

    Great help. fred.



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Open the case and look at the clock ic.  find the datasheet on the internet. this usually involves placing a jumper to ground for 50Hz operation and opening a jumper for 60 Hz operation. 

Posted on Oct 23, 2007


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Read the fine print on the power supply (the part that plugs into the wall). You may find 120-240 V or VAC, meaning that you don't need any converter - just a plug adapter. You'll probably also find 50-60 hz as the frequency range, meaning that you're good to go with just a plug adapter.

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no need to worry about frequency it will take care by voltage converter. you just need a good quality converter. and no need to buy 3 converters for 3 handsets. just buy one converter and one Multiplug or extension cable and connect it to converter's output socket and put your base power supply and other handset's chargers in and you are good to go.

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Need to transform 120v power to 240v

Bad news:

UK has 50 Hz electricity, and appliances are rated for local power..
Any appliance made for US market is rated 60 Hz.
50 Hz and 60 Hz electricity are different.

Look at label on your mixer, and then look at labels on local appliances. You will see 50 cycles or 60 cycles. Rarely appliances are labeled 50-60 cycles.

Hz Hertz or cycles or frequency is number of rotations the electric generator turns per second.

Some appliances are rated 50-60 cycles and will work worldwide.
However most appliances are rated 50 or rated 60 but not both.
60 cycle motor will not perform as expected when connected to 50 cycles. And might overheat.
Generally, most motors can be converted to different voltages by taking motor to motor shop (if you can find one these day)
However electronic controls cannot be converted between 120V and 230V, nor will 50 Hz electronics work with 60 Hz power

Sorry Sue.
Buy another mixer.
Business will benefit from surge of consumer buying.

Mar 28, 2013 | Hardware & Accessories

1 Answer

I recently purchased an Audiovox Clock Radio CR20 from the USA on a visit to that country. I am back in my home country India and started using the clock radio. I find that the clock is not keeping correct...

The reason of your problem is that your local mains frequency is 50 Hz and when you use 230V to 120V converter, this simple device can not convert frequency only the voltage. Your clock is synchronized to the mains frequency which is 50 Hz instead of 60 Hz and the clock goes slowly. It is late (60-50)/60 ---> 10 minutes in every hour.
I am sorry but I think your problem can not be fixed. ( It would be possible to convert the frequency but the cost of this kind of device would be higher than the value of this Audiovox)


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Bought oven in hongkong now in Philippines, how to

Ok, you cannot do that The "Frequency" of the mains cannot be changed. However IF the Voltages are the same the differing Frequencies will NOT stop it from heating etc. .BUT unfortunately it WILL matter to the electronics in it. The clock wouldn't run etc. So I think you maybe stumped? You could safely try it though? See if it works?

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1 Answer

Uae customer

even if there is power difference, all you have to do is buy a transformer that would convert 110 volts to 220 volts or vice versa. another issue that to be consider is frequency.

if the unit is designed to run at 60 Hz, then it would be slower when plugged to a 50 Hz supply. and the reverse, it would be faster if it is designed to 50 Hz and plugged to a 60 Hz supply.

tnx 4 using fixya,


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The clock works off the frequency (hertz). In US the electrical wave frequency is 60HZ/sec and in India and many other countries 50HZ/sec. Hence, the clock slows down about 6 seconds or so every minute.

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