Схема домашнего кинотеатра Other SANSUNG MAX-870/880/878/888

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Samsung Electronics
1-1 Safety Precautions (Continued)
7. Components, parts and wiring that appear
to have overheated or that are otherwise
damaged should be replaced with parts that meet the original specifications.
Always determine the cause of damage or
overheating, and correct any potential hazards
8. Observe the original lead dress, especially
near the following areas: Antenna wiring, sharp edges, and especially the
AC and high voltage power supplies. Always inspect for pinched, out-of-place,
or frayed wiring. Do not change the spacing between components and the printed circuit board. Check the AC power cord for damage. Make sure that no wires or components touch thermally hot parts.
9. Product Safety Notice:
Some electrical and mechanical parts
have special safety-related characteristics
which might not be obvious from visual inspection. These safety features and the protection they give might be lost if the replacement component differs from the original--even if the replacement is rated for higher voltage, wattage, etc.
10 Components that are critical for safety are
indicated in the circuit diagram by
shading, or . Use replacement components that have the same ratings, especially for flame resistance and dielectric strength specifications. Areplacement part that does not have the same safety characteristics as the original might create shock, fire or other hazards.
1-2 Servicing Precautions
1. Servicing precautions are printed on the
cabinet. Follow them.
2. Always unplug the unit's AC power cord
from the AC power source before attempting to: (a) Remove or reinstall anycomponent or assembly, (b) Disconnect anelectrical plug or connector, (c) Connect atest component in parallel with an electrolytic capacitor.
3. Some components are raised above the
printed circuit board for safety. An insulation tube or tape is sometimes used.The internal wiring may be clamped to prevent contact with thermally hot components. Reinstall all such elements totheir original position.
4. After servicing, always check that the
screws, components and wiring have beencorrectly reinstalled. Make sure that the portion around the serviced part has notbeen damaged.
5. Check the insulation between the blades of
the AC plug and accessible conductive parts(examples: metal panels, input terminalsand earphone jacks).
6. Insulation Checking Procedure: Disconnect
the power cord from the AC source and turn the power switch ON. Connect an insulation resistance meter (500V) to theblades of the AC plug.
The insulation resistance between each blade of the AC plug and accessible conductive parts (see above) should begreater than 1 megohm.
7. Never defeat any of the B+ voltage
interlocks. Do not apply AC power to theunit (or any of its assemblies) unless allsolid-state heat sinks are correctly installed.
8. Always connect a test instrument's ground
lead to the instrument chassis ground before connecting the positive lead; alwaysremove the instrument's ground lead last.
Precautions
First read the "Safety Precautions" section of this manual. If some unforeseen circumstance creates a conflict between the servicing and safety precautions, always follow the safety precautions.