Haier TV-8888-42 Service Manual page 8

Explanation on the display tube
Generally, it is not required to clean the tube surface. However, if necessary, its
surface can be cleaned with a dry cotton cloth after putting off the power. Don't use
any cleanser. Avoid using a hard cloth; the tube surface will be damaged.
CAUTION: Before servicing receivers covered by this service manual and its
supplements and addenda, read and follow the SAFETY PRECAUTIONS.
NOTE: If unforeseen circumstances create conflict between the following servicing
precautions and any of the safety precautions, always follow the safety precautions.
NB: Remember; Safety First.
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