User manual
ARK 3389 User Manual vi
b. Liquid has penetrated the equipment.
c. The equipment has been exposed to moisture.
d. The equipment has not worked well or you can not get it work 
according to user‘s manual.
e. The equipment has been dropped and damaged.
f. The equipment has obvious signs of breakage
 CAUTION!
THIS COMPUTER IS PROVIDED WITH A BATTERY-POWERED 
REAL-TIME CLOCK CIRCUIT. THERE IS A DANGER OF EXPLO-
SION IF BATTERY IS INCORRECTLY REPLACED. REPLACE 
ONLY WITH SAME OR EQUIVLENT TYPE RECOMMENDED BY 
THE MANUFACTURE. DISCARD USED BATTERIES ACCORDING 
TO THE MANUFACTURER’S INSTRUCTIONS.










