20 Most Recent La Crosse Technology WT-2171-UCS Digital Atomic Travel Clock (WT2171UCS, WT 2171 UCS, 757456995274) Questions & Answers

if it is wireless then check the sender unit
check the battery

severe cold weather can be hard on batteries

No, this model does not have a light or backlight. Feel free to peruse the manual information at your convenience though, and I do hope I've helped!

WT 2171U manual

http://www.lacrossetechnology.com/2171/manual.pdf

Simple to fix

Your clock may need to receive a signal indicating the time change. You can try moving it to another room, or outside to see if it reads the signal. Mine didn't, so I removed the battery and reset the clock. It wasn't obvious how to do that and I didn't save the owner's manual but upon close inspection there was a tiny black button (that looks like where you would lift a cover for a battery) and pressing it allowed me to adjust to the correct time. It is a "Sharp" bought at Target a couple of years ago.

Did you try adjusting the time manually? Did you adjust the time zone/ city setting on them as well? If you need further assistance give me the exact model and i can assist you further.
Thank you,
Lee

If the display is working, you have audio. Check your amplifier. 1300Watt adaptor ... This unit draws a very low power and that is not needed.

1. Power Off: Turn off the device.
2. Jumper Configuration: Locate the jumper labeled "S16" on the device. Initially, it should be connected to pins 2 and 3.
3. Power On (Alarm+All LEDs Flashing): Turn the device back on. You'll see the alarm LED and all other LEDs flashing.
4. Power Off Again: Turn off the device once more.
5. Jumper Adjustment: Change the jumper configuration from pins 2 and 3 to pins 1 and 2.
6. Finished: Your Porpo YH-2000 is now set to the desired angular unit mode.

If you encounter any issues, you can press the reset switch on the back of the device to reinitialize it.

this model SA rather than SC seems to be a Middle East model. The SC version doesn't have DAB. https://www.google.com/search?q=panasonic+sa-pm250+instruction+manual ..

All questions need clear 'make model (what it is)' first 3 words. https://www.google.com/search?q=fmdott085+V398 ..

Question edited for clarity, typo and CAPS. Question moved from Cars and Trucks category. Claim on the warranty irrespective of how long you have had them. They charge $180 but they cost them $20 to buy from China. Package them up and send them tracked and ask them to replace the batteries. How long is the warranty on AfterShokz? While we hope you never need it, all new Shokz purchased from authorized retailers come with a two-year warranty that begins on your date of purchase. Jan 11, 2019

How To File A Warranty Claim For Your SHOKZ Headphones

https://www.google.com/search?q=Openfit+Shokz+battery+replacement ..