repaired and rechecked before it is returned to the customer.
Figure 1
2. Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such
components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical
ES devices are integrated circuits and some field-effect transistorsand semiconductor "chip"
components. The following techniques should be used to help reduce the incidence of
component damage caused by electro static discharge (ESD).
1. Immediately before handling any semiconductor component or
semiconductor-equipped assembly, drain off any ESD on your
body by touching a known earth ground. Alternatively, obtain and
wear a commercially available discharging ESD wrist strap,
whichshould be removed for potential shock reasons prior to
applying power to the unit under test.
2. After removing an electrical assembly equipped with ES devices,
place the assembly on a conductive surface such as alminum foil,
to prevent electrostatic charge buildup or exposure of the
assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ES
devices.
4. Use only an anti-static solder removal device. Some solder
removal devices not classified as "anti-static (ESD protected)" can
4
Summary of Contents for ITD0110014C2
Page 7: ...5 Servicing method 5 1 Removing tilt base 7 ...
Page 8: ...5 2 Removing rear panel 5 3 Removing speaker unit 8 ...
Page 9: ...5 4 Removing chassis 9 ...
Page 10: ...5 5 Removing A Board 10 ...
Page 11: ...11 ...
Page 12: ...5 6 Removing B Board with tuner assembly 5 7 Removing DG Board 12 ...
Page 13: ...5 8 Removing H1 Board and H2 Board 5 9 Removing P1 Board 5 10 Removing P2 Board 13 ...
Page 14: ...5 11 Removing K Board 5 12 Removing V Board 5 13 A Board servicing 14 ...
Page 16: ...6 3 Option Description 16 ...
Page 17: ...17 ...
Page 32: ...32 ...
Page 46: ...8 Block and Schematic Diagrams 8 1 Schematic Diagram Notes 27 ...
Page 47: ...8 Block and Schematic Diagrams 8 1 Schematic Diagram Notes 27 ...
Page 48: ...8 2 Power Block Diagram 28 ...
Page 49: ...8 2 Power Block Diagram 28 ...
Page 50: ...29 ...
Page 51: ...29 ...
Page 52: ...8 3 Signal Block Diagram 30 ...
Page 53: ...8 3 Signal Block Diagram 30 ...
Page 54: ...31 ...
Page 55: ...31 ...
Page 56: ...8 4 Interconnection Schematic Diagram 32 ...
Page 57: ...8 4 Interconnection Schematic Diagram 32 ...
Page 58: ...8 5 A Board 1 of 5 Schematic Diagram 33 ...
Page 59: ...8 5 A Board 1 of 5 Schematic Diagram 33 ...
Page 60: ...8 6 A Board 2 of 5 Schematic Diagram 34 ...
Page 61: ...8 6 A Board 2 of 5 Schematic Diagram 34 ...
Page 62: ...8 7 A Board 3 of 5 Schematic Diagram 35 ...
Page 63: ...8 7 A Board 3 of 5 Schematic Diagram 35 ...
Page 64: ...8 8 A Board 4 of 5 Schematic Diagram 36 ...
Page 65: ...8 8 A Board 4 of 5 Schematic Diagram 36 ...
Page 66: ...8 9 A Board 5 of 5 Schematic Diagram 37 ...
Page 67: ...8 9 A Board 5 of 5 Schematic Diagram 37 ...
Page 68: ...8 10 DG Board 1 of 5 Schematic Diagram 38 ...
Page 69: ...8 10 DG Board 1 of 5 Schematic Diagram 38 ...
Page 70: ...8 11 DG Board 2 of 5 Schematic Diagram 39 ...
Page 71: ...8 11 DG Board 2 of 5 Schematic Diagram 39 ...
Page 72: ...8 12 DG Board 3 of 5 Schematic Diagram 40 ...
Page 73: ...8 12 DG Board 3 of 5 Schematic Diagram 40 ...
Page 74: ...8 13 DG Board 4 of 5 Schematic Diagram 41 ...
Page 75: ...8 13 DG Board 4 of 5 Schematic Diagram 41 ...
Page 76: ...8 14 DG Board 5 of 5 Schematic Diagram 42 ...
Page 77: ...8 14 DG Board 5 of 5 Schematic Diagram 42 ...
Page 78: ...8 15 P1 Board Schematic Diagram 43 ...
Page 79: ...8 15 P1 Board Schematic Diagram 43 ...
Page 80: ...8 16 B K V and P2 Board Schematic Diagram 44 ...
Page 81: ...8 16 B K V and P2 Board Schematic Diagram 44 ...
Page 82: ...8 17 H1 and H2 Board Schematic Diagram 45 ...
Page 83: ...8 17 H1 and H2 Board Schematic Diagram 45 ...
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