The following items should be checked for continued protection of the customer and the service
technician.
CAUTION Please heed the following cautions and instructions during
servicing and inspection.
◎ Heed the cautions!
Cautions which are delicate in particular for servicing are labeled on the cabinets, the parts and the
chassis, etc. Be sure to heed these cautions and the cautions described in the handling instructions.
◎ Caution concerning disassembly and assembly!
Through great care is taken when parts were manufactured from sheet metal, there may be burrs on the
edges of parts. The burrs could cause injury if fingers are moved across them in some rare cases. Wear
gloves to protect your hands.
◎ Use only designated parts!
The set's parts have specific safety properties (fire resistance, voltage resistance, etc.). Be sure to use
parts which have the same properties for replacement. The burrs have the same properties. In particular,
for the important safety parts that are indicated by the
z
mark on schematic diagrams and parts lists,
be sure to use the designated parts.
◎ Be sure to mount parts and arrange the wires as they were originally placed!
For safety seasons, some parts use tapes, tubes or other insulating materials, and some parts are
mounted away from the surface of printed circuit boards. Care should also be taken with the positions
of the wires by arranging them and using clamps to keep them away from heating and high voltage
parts, so be sure to set everything back as it was originally placed.
◎ Make a safety check after servicing!
Check that all screws, parts and wires removed or disconnected when servicing have been put back in
their original positions, check that no serviced parts have deteriorated the area around. And otherwise
check that safety is ensured.
Many of the electric and the structural parts used in the set have special safety properties. In most
cases these properties are difficult to distinguish by sight, and the use of replacement parts with higher
ratings (rated power and withstand voltage) does not necessarily guarantee that safety performance
will be preserved. Parts with safety properties are indicated as shown below on the wiring diagrams and
the parts list in this service manual. Be sure to replace them with the parts which have the designated
part number.
Parts lists Indicated by the
z
mark.
The use of parts other than the designated parts could cause electric shocks, fires or other dangerous
situations.
WARNING:
DO NOT return the set to the customer unless the problem is identified and remedied.
CAUTION Concerning important safety parts
SAFETY PRECAUTIONS
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