3-4
TVN_SN
Instructions for Handling Semi-
conductors
Electrostatic breakdown of the semi-conductors may
occur due to a potential difference caused by
electrostatic charge during unpacking or repair work.
1. Ground for Human Body
Be sure to wear a grounding band (1 M
Ω
) that is
properly grounded to remove any static electricity that
may be charged on the body.
2. Ground for Workbench
Be sure to place a conductive sheet or copper plate
with proper grounding (1 M
Ω
) on the workbench or
other surface, where the semi-conductors are to be
placed. Because the static electricity charge on
clothing will not escape through the body grounding
band, be careful to avoid contacting semi-conductors
with your clothing.
<Incorrect>
CBA
Grounding Band
Conductive Sheet or
Copper Plate
1M
Ω
1M
Ω
<Correct>
CBA
Summary of Contents for LC420SS8
Page 1: ...SERVICE MANUAL 42 COLOR LCD TELEVISION LC420SS8 ...
Page 37: ...8 8 A81H1SCF Function Schematic Diagram ...
Page 38: ...8 9 A81H1SCIR IR Sensor Junction Schematic Diagram ...
Page 42: ...8 13 Digital Main 4 9 Schematic Diagram A81H1SCD4 ...
Page 43: ...8 14 Digital Main 5 9 Schematic Diagram A81H1SCD5 ...