JADEVER SCALE CO., LTD
LCD backlight no LCD backlight defective Replacement is required
function
Component defective Please check/ replace Q9,CPU,P71,
R72,R73,R74,R75,R76
Battery symbol Insufficient cell voltage Please recharge the battery
Rechargeable failure If the voltage of the battery is lower than 5.7V
and the battery indication lamp is still in
green color, please immediately replace the
rechargeable battery.
Component defective Please check/replace R34,R35,R36,Q10
Bad connection Please repair the wire connection between
between R34 and the two components.
LM2930
5-3 Error Message
Error message Problems
Initial zero point exceeds ＋
/-30% (take 30% as reference
basis)
Higher or lower than A/D
resolution range.
Solutions
1. To check whether there are other alien
articles on the scale pan, remove those
articles.
2. LOAD CELL failure, which requires to be
changed or to contact our Service.
1. Check whether it is A/D failure, if yes, please
replace AD.
2. LOAD CELL failure, replacement is required
or contacts our Service.
19 JCL Service Manual
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