5. If the optical pickup is replaced, use the manufactures specified
replacement pickup only.
6. Use of control or adjustment or performance of procedures other
than those specified herein may result in hazardous radiation
exposure.
3. PREVENTION OF ELECTROSTATIC 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 transistorsare 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 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 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
8
Summary of Contents for PVDF204 - DVD/VCR/TV COM
Page 11: ...Fig 1 5 11 ...
Page 12: ...Fig 1 6 12 ...
Page 25: ...Fig D2 25 ...
Page 26: ...Fig D3 26 ...
Page 27: ...Fig D4 27 ...
Page 28: ...6 1 1 1 Notes in chart 1 Removal of VCR DVD Ass y Fig D5 28 ...
Page 48: ...7 4 TEST POINTS AND CONTROL LOCATION 48 ...
Page 51: ...11 2 DVD SECTION 51 ...
Page 52: ...11 3 CHASSIS FRAME SECTION 1 Model A B C D E F 52 ...
Page 53: ...11 4 CHASSIS FRAME SECTION 2 53 ...
Page 54: ...11 5 CHASSIS FRAME SECTION 3 54 ...
Page 55: ...11 6 PACKING PARTS AND ACCESORIES SECTION 55 ...