EDjunior Dynamometer User Instructions
19
7 Troubleshooting
Problem
Possible Cause
Solution
EDjr powers on momentarily
and turns off
Low battery
Bad keypad
Replace with high quality alkaline batteries
Have EDjr serviced
EDjr does not power on
Low battery
Bad keypad
Replace with high quality alkaline batteries
Have EDjr serviced
Batteries installed backwards
or no spring contact
Insure that positive terminals of both batteries (nub) face inward –
towards the black cap. Check that spring is attached to the battery
cap.
Software reset
Remove battery cap & reinstall after one minute. Attempt to turn
power on again.
Display contrast too light
Hold the
Arrow
key down while pressing the
F2
key several times to
increase the display contrast. If nothing occurs, release both keys.
Press the power button and try again.
Display is completely dark
Display contrast too dark
Hold the
Arrow
key down while pressing the
F1
key several times to
decrease the display contrast.
