Read Sony KDL-60W840B / KDL-60W850B / KDL-60W855B / KDL-60W857B / KDL-60W858B / KDL-70W830B / KDL-70W840B / KDL-70W850B / KDL-70W855B / KDL-70W856B / KDL-70W857B Service Manual online
RB2G
CHASSIS
W830B/ W840B/ W850B/ W855B
W856B/ W857B
Safety Notes
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.
Free Solder. The boards are identified by the LF logo located close to the
board designation.
Main Board
Main Board
Please hold reinforcement board and
plunge it to depths.
plunge it to depths.
Please pull out FFC while pushing the
button of both ends at the same time.
button of both ends at the same time.
Figure 4: LF Logo
Figure 5: LF logo on circuit board
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.
recommended to use Lead Free Solder material in order to guarantee optimal
quality of new solder joints.
< Insertion>
<Pull out>
1-8. Handling the FLEXIBLE FLAT CABLE (FFC)
When you insert / pull out FFC, please grasp a reinforcement board and main
body of FFC.
Release Button
of Connector
FFC connector broken if pull out FFC
without press and hold both Release
Button of Connector. Symptom 5X blinking
will be appear due to improperly seated.
without press and hold both Release
Button of Connector. Symptom 5X blinking
will be appear due to improperly seated.
7
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