Question about Timex (T439S) Clock Radio

5 Answers

Change color i bought this clock open box but i dont know how to change the color on the screen so the time is really light and i cant see it and also i want to make it beep when the alarm goes off but it only does radio help please is there a site i can go to that will have the directions on how to set this thing please. thank you jenn

Posted by on

5 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer
Re: change color

To change the color there is a small silver button on the top left. Press it once to rotate the colors press it a second time to lock in the color you like. The large button in the middle (Snooze/Dimmer) with also make changes to the color. Looking at the face of the clock on the top left (radio) and top right (buzzer) are the alarm buttons. Touch once to turn on and once to turn off. Hope this helps. if you need more help.

Posted on Sep 10, 2012

Re: change color

I had the same problem of the steady red color, but i unplugged the clock, and also took the batteries out and it reset itself.

Posted on Sep 23, 2008

Re: change color

You can download a 10-page Adobe PDF manual for the Timex T439S Clock Radio here: Just choose the T439 model from the drop-down box and the manual will be available.

Posted on Sep 07, 2007

Re: change color

Check timex usa's web site-- I was able to download instruction manual for my timex clock radio--

Posted on Apr 30, 2007

Re: change color

There should be a button on the top of the radio. If it's a steady red, then you've got the same problem I have.

Posted on Apr 29, 2007

Add Your Answer

0 characters

Uploading: 0%


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


3 Points

Related Questions:

1 Answer

Need instructions for springfield color-changing desktop digital clock

Press the M button (mode) until you get to the time. Then hold the S button (set) for about 3 seconds or until it starts blinking. Then you can use the up and down arrows to change the time. Once you are finished you can press S.

Jan 05, 2013 | Bon-Ton Springfield Color-Changing Desktop...

1 Answer

Hi !!! my name is carlos and just i bought a rca clock radio rp5420 and i dont know how setup the clock if you know how can i do that tell me how please apreciate your help thanks!! sorry for my bad...

You do not have to set the clock time as a built-in automatic time set system is equipped in this clock powered by 3V (2X AA batteries). All you have to do is to plug this clock for power and current time will be shown automatically. However, the batteries can also be exhausted and it is recommended to replace the batteries every 2-3 years.

But if you want Setting the Clock:
1. Slide the switch /WAKE1/WAKE2/ on the top of the unit to clock position.
2. Press REV or FWD to set the clock time. The time decrements or increments will follow by a faster rate when you press and hold the buttons. The ":" between hour and minute time flashes when you are setting the time. AM or PM icon will also beside the time.
3. Slide the switch /WAKE1/WAKE2/on the top of the unit to original position when finished.


Aug 29, 2011 | RCA RP5420 Clock Radio

9 Answers

Alarm clock came with chinese instructions manual,I need English

1.slide "return to time"to off, slide "backlight" to on
2.each press of the mode button goes through "time, temperature, year, month(M looks like an H) and day(D), alarm1, "2, "3, , Birthday Celebration, countdown/stopwatch"
3. when on the category u want to change, press and hold set button for 3 secs, adjust with up and down and the hit set when done with each adjustment

Buttons on the bottom in order from left to right are(buttons on the top part of the clock bottom when turned on its side) mode, set, up, down

Jan 09, 2009 | Emerson Smartset Clock Radio

1 Answer

Day light Savings time problem

Hi ... I have the same problem ... I found this link but I haven't tried it out yet ...

Oct 27, 2008 | Emerson Smartset Clock Radio

1 Answer

Timex clock radio T245S

Try this

Also if the screen is flashing "OFF" toggle the tab on the left

Oct 05, 2008 | Timex Nature Sounds LED Clock Radio

1 Answer

Westclox Travel Alarm

After selecting either TIME, DATE, or ALARM at the top of the screen, use the stylus to touch and hold the large time display. Hold it there for about 5 seconds and the clock will beep and the time display will start flashing. Then you can touch either the hours or minutes and it will increase by either 1 hour or 1 minute accordingly. When the DATE is selected, it shows the year in the large display. Again, holding the stylus on the year diaply for about 5 seconds will enter into the chqange mode. IN all cases, to exit the change mode simply select one of the other selections across the top: TIME, DATE, ALARM.

Jun 30, 2008 | Clock Radios

5 Answers

Cant set time

Solution #1 posted on Apr 03, 2008 0%20stars.png
Rank:nonexpert_s.gif Apprentice
Rating: 0%, 0 votes
On the back of the clock - left hand side if you've laid it down on it's face - is a row of switches. You need to start the time set-up with the clock having been unplugged so there's no time set in the memory5.gif.
Now, to those switches: The first (from the left) is DST = Daylight Savings Time - right now you'de set this to "ON."
The second switch is Time Zone: PST, MST, CST, EST (Pacific, Mountain, Central, Eastern). Set the switch to the time zone you are in.
The third is just the brightness.

Now, to set the time itself:
1 - Turn the clock face back up to where you can see it.
2 - LOOK AT THE CLOCK - LOL! This is an atomically set clock - you shouldn't need to set the time. The atomic clock bounces off of satellites all around the world. There is literally little to no "dead zones" for the clock, so you should never have to set your clock - just set it up like I state at the beginning.

Good Luck!

Mar 10, 2008 | RCA RP5420 Clock Radio

3 Answers

Emerson Research SmartSet Clock Radio

There was a sheet of paper that came with my clock explaining how to adjust the daylight savings time settings, but I lost it.  Anyone have theirs?  All i know is it requires that you press an awkward combination of buttons simultaneously, but that's it.

Nov 06, 2007 | Zenith Z230S Clock Radio

4 Answers

Random flashing color and time

Did you every get a solution. My clock is having the same problem?


Aug 06, 2007 | RCA RP-3765 Clock Radio

Not finding what you are looking for?
Timex (T439S) Clock Radio Logo

828 people viewed this question

Ask a Question

Usually answered in minutes!

Top Timex Clock Radios Experts

The Knight
The Knight

Level 3 Expert

66413 Answers

Gyula Lacz

Level 3 Expert

482 Answers


Level 3 Expert

3018 Answers

Are you a Timex Clock Radio Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides