Panasonic ShowStopper PV-SS2710, Руководство по обслуживанию

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1. SAFETY PRECAUTIONS
1.1. GENERAL GUIDELINES
1. IMPORTANT SAFETY NOTICE
There are special components used in this equipment which are
important for safety. These parts are marked by in the Schematic
Diagrams, Circuit Board Layout, Exploded Views and Replacement
Parts List. It is essential that these critical parts should be replaced
with manufacturer’’s specified parts to prevent X-RADIATION, shock,
fire, or other hazards. Do not modify the original design without
permission of manufacturer.
2. An Isolation Transformer should always be used during the servicing
of HDR Combination whose chassis is not isolated from the AC power
line. Use a transformer of adequate power rating as this protects the
technician from accidents resulting in personal injury from electrical
shocks. It will also protect HDR Combination from being damaged by
accidental shorting that may occur during servicing.
3. When servicing, observe the original lead dress, especially the lead
dress in the high voltage circuits. If a short circuit is found, replace all
parts which have been overheated or damaged by the short circuit.
4. After servicing, see to it that all the protective devices such as
insulation barriers, insulation papers, shield, and isolation R-C
combinations are properly installed.
5. Before turning the receiver on, measure the resistance between B+
line and chassis ground. Connect (-) side of an ohmmeter to the B+
lines, and (+) side to chassis ground. Each line should have more
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