Sony KD-75X7800F Service Manual page 9

1-7. Lead Free Information
The circuit boards used in these models have been processed using
Lead Free Solder. The boards are identified by the LF logo located
close to the board designation.
Figure 4: LF Logo
The servicing of these boards requires special precautions. It is
strongly recommended to use Lead Free Solder material in order to
guarantee optimal quality of new solder joints.
Figure 5: LF logo on circuit board
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