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Troubleshooting 

Symptom 

Possible Solution 

User settings (such as Color, or Mode are 
being reset) 

Check if Power Supply is connected security 
and nothing pulling the wire 

Time and/or date is not kept correctly (i.e. it’s 
really off by hours or days) 

Make sure you are using Power Supply with 
output of 6V or more (up to 24) 

Time/Date lost after power loss or reset 

Replace internal coin battery 

Nothing show on the screen, no signs of life 
even when pressing MENU button 

Try resetting clock by pressing Reset button. 
Unplug Power supply form the clock. Wait 10 
seconds and plug it back in. 
Open maintenance door and see if any wires 
are loose, check that microSD card is fully in. 
(Clock won’t work without microSD or if files 
are missing)  
If you have FTDI adapter/cable see if you can 
get any serial output that will tell you anything 
meaningful (set baud rate to 115200). 
Try uploading latest firmware or sent clock 
back to me for repair/reprogramming. 

 
Remember 99% of issues will result from bad or insecurely plugged power supply. Never use 
clock if power cable is moving around or stretched. Always plug and unplug it in single quick 
motion. Don’t pull on the cable. 
 

Warranty 

I will fix or replace fully assembled Xronos clock in the period of ONE YEAR since date of sale if 
issue is due to the manufacturing defect.  Because this is open source and hackable device, I 
cannot be held responsible if you damage it, so warranty will be voided if you modified the clock.  
Also warranty doesn

’t apply to KIT version of the clock. 

Having said that I’m still willing to offer reasonable help and repair on case by case basis. 
 

Disclaimer 

I will not be held responsible for any issues resulted by Xronos Alarm 

Clock or from it’s usage. 

Use at your own risk.  

Summary of Contents for Alarm Clock V2.1

Page 1: ...art Xronos clock comes with a good quality AC Adapter that will power your clock and won t waste too much of power Firmly plug in power adapter into wall outlet and DC cable into clock s right side As...

Page 2: ...ATOR Looking at the top of the clock you will find 3 very sleek looking arcade buttons From left to right they are MENU SET and INCR or Increment and well that s it What did you expect a QWERTY keyboa...

Page 3: ...hange to selected item And no need to save settings All changes are saved into permanent memory EEPROM either immediately after pressing INCR button or after clock exits from menu Now look at the righ...

Page 4: ...Left side of the clock has removable panel held by 3 screws for easy access to clock interface in case you want to re program update firmware access microSD card that holds all audio...

Page 5: ...g fun schematic of all the menu functions and flows sorry no pie charts Secondary Functions As I mentioned earlier were you paying any attention or just mashing arcade buttons each button has secondar...

Page 6: ...via MENU button Alarm will reset itself after 1 hour has passed or second Alarm kicked off Alarm menu system is slightly different from other menus and requires master s degree in nuclear dentistry to...

Page 7: ...Temperature Offset What is it and why it s needed you might ask Can it reverse effects of the global warming Well you see Xronos Clock components generate some heat Especially LED matrix As efficient...

Page 8: ...held for few seconds starts to reprogram remote More on this later Up Down CH buttons Same function as SET button Left Right VOL buttons Decrement new feature or Increment same as INCR button functio...

Page 9: ...s clock supports remote temperature and humidity data If you want to build your own sensor use Arduino code provided on our website xronosclock com If you are maker possibilities are endless Here are...

Page 10: ...Hours Minutes Day Month Year maximum Year allowed 2040 after which it goes back to 2013 Sys Setup Sets global clock settings Mode Choose 12 hour AM PM or 24 hour clock mode Brightness Select LED disp...

Page 11: ...to display humidity data from optional external sensor This item will not show up if RF sensor is turned off Exit Talk Items Say Time Y N Option to announce Time when TALK button is pressed or held S...

Page 12: ...r not Other than this you might have to occasionally change internal clock battery in case you notice clock loses time if there was power interruption Xronos takes generic CR2032 coin type 3V battery...

Page 13: ...ront of the clock maintenance door is on the left of the clock opposite from speaker side held by 3 small screws as shown on the picture above 3 Gently remove screw that holds door from the back of th...

Page 14: ...r will also allow you access to the FTDI programming interface You will need a 5V USB FTDI adapter board or cable you can get one on Sparkfun or eBay Make sure you unplug external power first FTDI wil...

Page 15: ...re a COM port 4 Take a note of the COM Port number by going Device Manger via Control Panel system or right clicking on Computer icon on your desktop Under Ports you will see USB Serial Port Note it s...

Page 16: ...ain board and put front panel aside If you need to remove LED display simply unscrew 4 screws holding it but remember which was it was oriented Main board and power supply both attached to the back pa...

Page 17: ...tach left maintenance door and secure it with 3 screws 2 x 4 40 from side and one 9 16 4 40 from back Tighten acorn nuts with hand and also tighten 2 half inch 4 40 screws holding speaker panel Do not...

Page 18: ...f you can get any serial output that will tell you anything meaningful set baud rate to 115200 Try uploading latest firmware or sent clock back to me for repair reprogramming Remember 99 of issues wil...

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