2. Warning
2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatic
Sensitive (ES) Devices
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such
components commonly are called Electrostatic Sensitive (ES) Devices. Examples of typical ES
devices are integrated circuits and some field-effect transistor-sand semiconductor "chip"
components. The following techniques should be used to help reduce the incidence of
component damage caused by electrostatic 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, which
should 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 aluminum
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 generate electrical charge sufficient to damage ES devices.
5. Do not use freon-propelled chemicals. These can generate
electrical charges sufficient to damage ES devices.
6. Do not remove a replacement ES device from its protective
package until immediately before you are ready to install it. (Most
replacement ES devices are packaged with leads electrically
shorted together by conductive foam, aluminum foil or
comparable conductive material).
7. Immediately before removing the protective material from the
4
Summary of Contents for DMR-ES45VP
Page 7: ...3 Service Navigation 3 1 Service Information 4 Specifications 7 ...
Page 68: ...10 13 Main P C B 1 Disconnect 5 Connectors 2 Remove 2 Screws A and remove Main P C B 52 ...
Page 70: ...11 1 2 Checking and Repairing of Main P C B 54 ...
Page 71: ...11 1 3 Checking and Repairing of RAM Digital P C B Module 55 ...
Page 73: ...11 2 3 Items that should be done after replacing parts 57 ...
Page 74: ...58 ...
Page 75: ......
Page 87: ...17 1 2 Casing Parts Mechanism Section 2 70 ...
Page 88: ...17 1 3 VHS Mechanism Section 71 ...
Page 89: ...17 1 4 Packing Accessories Section 72 ...
Page 111: ...C11701 F2A1A2220055 10V 2200U 1 94 ...
Page 123: ......
Page 124: ......
Page 132: ...1 4 2 4 3 4 4 4 DMR ES45VP ES46VP Main P C B VEPV0054BT 4 4 Section Location Map REAR FRONT ...