Safety
The voltages produced in the High Voltage circuit can reach peaks of 400V! Take precautions
not to electrocute yourself! If you are not sure what this means, please do not use this clock
and return it for a full refund.
A shock from the clock high voltage circuit is at least a nasty bite. At worst it can kill you.
We decline any responsibility in the case of injury or death. You must be qualified to use this
clock, it is not intended for anyone unqualified.
REPEAT: If you are not sure what this means, do not use the clock!
General
The clock has different modes of operation, which you select using the push button.
First Start
When you start the clock up th very first time, it will start in “First Start Mode”. This mode is
intended to simplify the set up of the hardware. It cycles through the digits
00:00:00
-
99:99:99
and drives the High Voltage Generator with a basic setting which does no dimming. This allows
you to check that all digits on all tubes are working correctly.
Exit First Start mode
Once you have mounted the tubes and are happy that they are working well, you can exit “First
Start Mode”.
To
EXIT First Start Mode, press the push button when the display shows “88:88:88”,
and the clock will go to normal time keeping mode!
Time Keeping (“Clock”) Mode
After the first start, each time you start up the unit, the clock will go into normal clock mode
and will display the time. In normal clock mode, the time will be displayed.
Factory Reset
If you want to go back to first start or calibration mode, you can perform a factory reset on the
clock. To do this, hold down the button as soon as you see the first yellow back light LED while
you power on. This will reset all settings and start up the clock in First Start Mode again.
Power on diagnostics
Every time you power the clock up, it will go through a self check routine to check the most
important parts of the circuitry. Behind each digit there is a LED, which tells you the status on
start up. Each of the LEDs can have one of three colours, in general “Yellow” means
“Checking”, “Green” means 2
The meanings of the different LEDs and colours are:
