Checkline EDjunior - Manual (Page 13)

13 EDjunior Dynamometer User’s Manual
Troubleshooting
Solution
Replace with high quality alkaline batteries
Replace with high quality alkaline batteries
Insure that positive terminals of both batteries (nub)
face inward – towards the black cap. Check that
spring is attached to the battery cap.
Remove battery cap & reinstall after one minute.
Attempt to turn power on again.
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.
Hold the Right Arrow key down while pressing the
F1 key several times to decrease the display con-
trast.
Problem
EDjr powers on momen-
tarily and turns off
EDjr does not power on
Display is completely
dark
Possible Cause
Low battery
Low battery
Batteries installed back-
wards or no spring contact
Software reset
Display contrast too light
Display contrast too dark