Hitachi C43-FL9000 Service Manual page 4

SAFETY PRECAUTIONS
g) X-radiation (TUBE)
X-radiation in this receiver is the picture tube. The tube
utilized for the above mentioned function in this
chassis is specially constructed to limit X-radiation
emissions.
For continued X-radiation protection, the replacement
tube must be the same type as the original. HITACHI
approved type.
When troubleshooting and making test measurements
in a receiver with a problem of excessive high voltage,
avoid being unnecessarily close to the picture tube
and the h igh voltage component.
-The primary source
Fig. 1 X-ray shield plates
Do not operate the chassis longer than is necessary
of
to locate the cause of excessive voltage.
h) X-radiation Shield -This receiver is provided with
X-ray shield plates for protection against X-radiation.
Do not remove X-ray shield plates A, B, C, or D
shown in Fig.1 unnecessarily, when troubleshooting
and/or making test measurements.
To prevent X-radiation, after replacement of picture
tube and lens, confirm these components to be fixed
correctly to bracket and cabinet, and not to be taken
off easily.
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