Anritsu MT9812B, Руководство по эксплуатации, Страница: 50 / 144

Section 3 Before Use
3-12
3.9 Replacement of Fuse
When the fuse has blown, eliminate the cause and replace the fuse by following
the procedure set out below.
WARNING
To replace the fuse, first turn the power source OFF and
pull the power source cord out from the power recep-
tacle, and then, replace the fuse. Attempting to replace
the fuse without pulling the power source cord out from
the power receptacle may cause electric shock.
Moreover, check whether the fuse to replace is the same
as that prescribed in the manual, or use a fuse of the
same rating or the same properties of the fuse indicated
on the back of the MT9812B frame. Using a wrong fuse
may cause frequent fusing, burnout or fires.
A fuse indication of TxxxA signifies fuses of time lag
type. The MT9812B uses time lag type fuses of 5.0 A.
Procedure for fuse replacement
(1) The lower part of the AC inlet in the back of the MT9812B incorporates a
fuse holder. Apply the tip of a minus driver or similar objects to the upper
edge of the fuse holder.
(2) The fuse holder has two fuses mounted. Remove the fuses from the fuse
holder and mount new fuses. In this case, replacing the blown fuse only
normally presents no problems. However, the other fuse may retain certain
stress and therefore is more likely to blow. Therefore, replacing two fuses at
the same time is recommended.