32PD3000 / 42PD3000
Safety
CE MARK
1. HITACHI products may contain the CE mark on
the rating plate indicating that the product contains
ENGLISH parts that have been specifically approved to
SAFETY PRECAUTIONS
WARNING: The following precautions must be provide electromagnetic compatibility to designated
levels.
observed. 2. When replacing any part in this product, please
ALL PRODUCTS use only the correct part itemised in the parts list to
Before any service is performed on the chassis an ensure this standard is maintained, and take care
isolation transformer should be inserted between
the power line and the product. to replace lead dressing to its original state, as this
can have a bearing on the electromagnetic
1. When replacing the chassis in the cabinet, radiation/immunity.
ensure all the protective devices are put back in PICTURE TUBE
place.
2. When service is required, observe the original 1. The line output stage can develop voltages in
excess of 25kV; if the E.H.T. cap is required to be
lead dressing. Extra precaution should be taken to removed, discharge the anode to chassis via a high
ensure correct lead dressing in any high voltage value resistor, prior to its removal from the picture
circuitry area.
3. Many electrical and mechanical parts in tube.
HITACHI products have special safety related 2. High voltage should always be kept at the rated
value of the chassis and no higher. Operating at
characteristics. These characteristics are often not higher voltages may cause a failure of the picture
evident from visual inspection, nor can the tube or high voltage supply, and also, under certain
protection afforded by them necessarily be
obtained by using replacement components rated circumstances could produce X-radiation levels
moderately in excess of design levels. The high
for higher voltage, wattage, etc. Replacement parts voltage must not, under any circumstances, exceed
which have these special safety characteristics are 29kV on the chassis (except for projection
identified by marking with a ! on the schematics
and the replacement parts list. The use of a Televisions).
3. The primary source of X-radiation in the product
substitute replacement component that does not is the picture tube. The picture tube utilised for the
have the same safety characteristics as the above mentioned function in this chassis is
HITACHI recommended replacement one, shown specially constructed to limit X-radiation. For
in the parts list, may create electrical shock, fire, X-
radiation, or other hazards. continued X-radiation protection, replace tube with
the same type as the original HITACHI approved
4. Always replace original spacers and maintain type
lead lengths. Furthermore, where a short circuit has 4. Keep the picture tube away from the body while
occurred, replace those components that indicate
evidence of overheating. handling. Do not install, remove, or handle the
picture tube in any manner unless shatterproof
5. Insulation resistance should not be less than 2M goggles are worn. People not so equipped should
ohms at 500V DC between the main poles and any be kept away while picture tubes are handled
accessible metal parts.
6. No flashover or breakdown should occur during LASERS
If the product contains a laser avoid direct
the dielectric strength test, applying 3kV AC or exposure to the beam when the cover is open or
4.25kV DC for two seconds between the main when interlocks are defeated or have failed.
poles and accessible metal parts.
7. Before returning a serviced product to the
customer, the service technician must thoroughly
test the unit to be certain that it is completely safe
to operate without danger of electrical shock. The
service technician must make sure that no
protective device built into the instrument by the
manufacturer has become defective, or
inadvertently damaged during servicing.
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ACEC
