Precautions For Safety - Hitachi DV-P250U Manual De Servicio

PRECAUTIONS FOR SAFETY

Before undertaking repair work, please read through this [Precautions for safety].
The following points should be observed in order to prevent accidents from happening and to ensure the
safety of the device.


Degrees of danger or damage that can be caused by faulty operation are indicated by the following marks:
WARNING
CAUTION


The following marks identify actions to be taken:
This mark indicates items to which 'You
should pay attention'.
This mark indicates: 'You should be cau-
tious of electric shock'.


You should pay attention.
Where a special attention is required, it is
indicated by a label or stamp. For example, on
the cabinet, chassis, or parts.
Please respect the indicated items and the
'Precautions for use' of the manual.


You should be cautious against electric shock.
Please be careful during operations because
there are high voltage and recharging parts
inside. An electric shock or death may happen
by touching them.
When disassembling, assembling, or replacing
a part, the power plug has to be pulled off.
Touching by error a powered part may cause
an electric shock, death, or injury.


Please use designated parts.
Parts are characterized by uninflammability
and voltage resistance. Therefore, parts
having these same characteristics must be
used in replacement.
Especially for parts important in insuring
safety, identified by
parts list, a part with the identical part number
shall be used.
If a part with a different part number is used,
an electric shock or a fire may occur.
All manuals and user guides at all-guides.com
Under this mark, there is "Possible death or serious injury".
Under this mark, there is "Possible injury or material damage".
WARNING




in the schematic or
(Please follow.)
This mark indicates items 'You have to
accomplish'.
This mark indicates 'Forbidden items'.
The original part installation and wiring route
shall be restored.
For safety, some parts are insulated by a tube
or a tape, or installed without contact with
substrate. The internal wiring is kept a
distance from hot or high voltage parts by
clamps or routing. Please restore them as
initially done to prevent electric shock or fire
from happening.
Please check safety after servicing.
Please check if dismounted screws, parts, and
wires are reinstalled as before and if the area
surrounding the repair is damaged.
Please also measure insulation resistance with
a ohmmeter and to confirm that it is more than
20MΩ.
There is risk of electric shock or fire if the
insulation resistance is less than 20MΩ.
II