Sharp mz-1d04 Service Manual page 2

Z-1004
FOR SAFER SERVICING AND SAFETY CHECK-OUT
Please pay special attention to the following conditions during servicing and check-out.
1. Observe cautions
Where special attention is required on such as cabinet,
chassis, and component parts is noted with caution using
label or stamp.
You have to observe there cautions as well as those in
Instruction Manual.
2. Use parts of rated performance
Since parts component used in the unit
has
specific rating
for safety performance such as non-inflamability, voltage
withstanding, etc., use the item of identical characteristics.
Among all, parts components indicated with the "
&. "
mark
in the circuit diagram and parts list must be equal in its
property as it is critical to the performance of the unit.
3. Replace the parts and wiring on their original locations
For safety's sake, some of items are protected with in-
sulating materials such as tube and tape, or the printed
board is isolated from other components. Also, internal
wirings are installed and held by such as clamp to keep
them away from heat generating component and high
tension parts. Whereas, these wirings have to be installed
back to their original locations.
2
4. Handle the CRT with care
The explosion-proof cathod ray tube is guaranteed of its
safety against explosion as long as it is installed in the
unit. However, pay special attention when it was removed
from the unit or when servicing it from the back of the
unit.
Never give impact of the cone section.
5. X-ray
The CRT and high tension circuits have safety measures
against X-ray. Therefore, use the specified parts to trouble-
shoot the CRT and high tension circuit, and, never try to
modify the circuit under any circumstance. Use of the parts
other than specified may cause to rise the high voltage
which generates X-ray from the CRT.
6. Perform check-out after servicing
After servicing, be sure to confirm safety by checking
that all removed screws, component parts, and wirings
were replaced as before and see that no damage has been
done to the serviced area. Besides, ensure insulation of the
input signal terminal against metal portion and plug edges.