Hitachi CPX2102MS Service Manual page 4

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5. With the unit completely reassembled, plug the AC line cord directly to the power outlet.
With the unit s AC switch first in the ON position and then OFF, measure the current
between a known earth ground (metal water pipe, conduit, etc.) and all exposed metal
parts, including handle brackets, metal cabinets, screwheads and control shafts.
The current measured should not exceed < 0.7 mA peak AC < 2mA DC.
Reverse the power-plug in the AC outlet and repeat the test.
6. X-ray Limits
The picture tube is especially designed to prohibit X-ray emissions.
To ensure continued X-ray protection, replace the picture tube only with one that is the
same type as the original. Carefully reinstall the picture tube shields and mounting
hardware these also provide X-ray protection.
7. High Voltage Limits
High voltage must be measured each time servicing is done on the + B, horizontal
deflection or high voltage circuits.
8. High voltage is maintained within specified limits by close-tolerance, safety-related
components and adjustments. If the high voltage exceeds the specified limits, check
each of the special components.
9. Design Alteration Warning
Never alter or add to the mechanical or electrical design of this unit.
Example Do not add auxiliary audio or video connectors. Such alterations might
create a safety hazard. Also, any design changes or additions will void the
manufacturer s warranty.
10. 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.
11. 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 leads and components do not touch
thermally hot parts.
12. Picture Tube Implosion Warning
The picture tube in this receiver employs "integral implosion" protection.
To ensure continued implosion protection, make sure that the replacement picture tube
is the same as the original.
13. Do not remove, install or handle the picture tube without first putting on shatterproof
goggles equipped with side shields.
Never handle the picture tube by its neck. Some "in-line" picture tubes are equipped
with permanetly attached diflection yoke do not try to remove such "permanently
attached" yokes from the picture tube.
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