Question about Jensen JCR-425 Clock Radio

2 Answers

JCR-160 clock radio Clock running slow

Jensen JCR160 digital clock running slow Tried JCR160 with 120v to 220v convertor in India found the clock looses 5 secs for every min. Tried replacing 110volt input transformer with different 230v input transformer found no change. Tried rewinding the primary side of the original transformer without disturbing the secondary winding & the voltage output still no change. Any solution available ?....

Posted by on

  • 2 more comments 
  • maran Mara Nov 29, 2007

    Thanks, but do we have any fix for this?- Regards

  • deydat Jan 12, 2008

    I am also facing same problem due to mains 50/60 HZ being used for clock in put frequency.
    Sonashi make digital clock radio does not show proper time. Tried using MM5369 ic with 3.579 mhz crystal but display flickers.

  • tngokul Jun 13, 2008

    I also face the same problem
    I use MAGNOVOX MCR140/17 clock radio. The product is excellent but the clock runs slow when used in India as the electrical frequency is 50 Hz compared to 60 Hz so I dont know what to do now.

  • Anonymous Mar 19, 2014

    The clock runs but it in running too slow



2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

There is an option to choose 50 Hz or 60 Hz in main IC. Open the radio clock and see the number of IC. Download datashee of that IC and see for selection of 50/60 Hz. You have to just short the desired pin.
Pl. feel free on any query at

Posted on Mar 08, 2009


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.

Posted on Nov 28, 2007


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

I have a frigidaire electric stove,model # 316433603 there is power to the stove the only working is the clock

General answer for all electric stoves: Electric stoves are usually 220V in the USA. The clock is 120V. My first "guess" is that you have 120v to your clock and maybe light if the stove has one. You should have a separate 220v power cable ( see photo attached) that will power the range itself. The cord may be missing ( simple to unbolt), the cord my be unplugged, or the 220 circuit may be turned off at the fuse box or circuit breaker.


Mar 02, 2015 | Stoves Ovens

1 Answer

Need a power transformer from 220input to 120output

What you need is simply a power converter device that knocks the power down for your device. Look for a UK (European) to USA power convertor on somewhere like Amazon.

May 04, 2013 | Bose Lifestyle SA-3 2-Channel Amplifier

1 Answer

Hi, i have a dream machine sony ICF-c218 by mistak connected to 220v the original transformer is 120V & i also would like know the output voltage of this transformer so that i can change it 220V p

My self sushil from india pl.find the details
yellow-blue is 3.2 VAC
red-white is 4.2 VAC.
Clock is well functioning without frequencies difference error. I think the clock is using crystal for pulses generator instead of AC power supply frequency.

May 22, 2012 | Sony Audio Players & Recorders

1 Answer

RCA RP5435B SN.1A006J255A0594-Clock running slow

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.

Sep 20, 2008 | RCA RP5430 Clock Radio

1 Answer

Ac adapter

Hi I am an Indian too !

Of course you can use the 220v AC adapter, it will not harm your massager but may only underperform [slow speed, slow vibrations etc]

And be aware that the foreign products you receive, and have adapters rated at 120v are bound to get busted if you use them here in India, don't use them at first place.
Rather, buy an adapter rated for 220-240v for the same output voltage as that of 120v

Jul 12, 2008 | Televison & Video

1 Answer

Slow clock

Is there a separate battery for the clock memory? If so I would try changing that. Otherwise the clock is probably busted. Digital clocks would not normally loose more than a few seconds a year. If the clocks crystal oscillator broke it may cause this. That could happen if the crystal was not glued down or came loose.

Jun 26, 2007 | GE 29439GE2 Corded Phone

Not finding what you are looking for?
Jensen JCR-425 Clock Radio Logo

Related Topics:

813 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jensen Audio Players & Recorders Experts


Level 3 Expert

5318 Answers

Don Hart

Level 2 Expert

108 Answers

The Knight
The Knight

Level 3 Expert

75025 Answers

Are you a Jensen Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides