1-2
Samsung Electronics
Precautions
1-2 ESD Precautions
Certain semiconductor devices can be easily
damaged by static electricity. Such components are
commonly called “Electrostatically Sensitive (ES)
Devices”, or ESDs. Examples of typical ESDs are
:
integrated circuits, some field effect transistors, and
semiconductor “chip” components.
The techniques outlined below should be followed
to help reduce the incidence of component damage
caused by static electricity.
CAUTION: Be sure no power is applied to the
chassis or circuit, and observe all other safety
precautions.
1. Immediately before handling a semiconductor
component or semiconductor-equipped assembly,
drain off any electrostatic charge on your body
by touching a known earth ground. Alternatively,
employ a commercially available wrist strap
device,
which should be removed for your personal
safety reasons prior to applying power to the unit
under test.
2. After removing an electrical assembly equipped
with ESDs, place the assembly on a conductive
surface, such as aluminum or copper foil, or
conductive foam, to prevent electrostatic charge
buildup in the vicinity of the assembly.
3. Use only a grounded tip soldering iron to solder
or desolder ESDs.
4. Use only an “anti-static” solder removal device.
Some solder removal devices not classified as
“anti-static” can generate electrical charges
sufficient to damage ESDs.
5. Do not use Freon-propelled chemicals. When
sprayed, these can generate electrical charges
sufficient to damage ESDs.
6. Do not remove a replacement ESD from its
protective packaging until immediately before
installing it. Most replacement ESDs are
packaged with all leads shorted together by
conductive foam, aluminum foil, or a comparable
conductive material.
7. Immediately before removing the protective
shorting material from the leads of a replacement
ESD, touch the protective material to the chassis
or circuit assembly into which the device will be
installed.
8. Maintain continuous electrical contact between
the ESD and the assembly into which it will be
installed, until completely plugged or soldered
into the circuit.
9. Minimize bodily motions when handling
unpackaged replacement ESDs. Normal motions,
such as the brushing together of clothing fabric
and lifting one’s foot from a carpeted floor, can
generate static electricity sufficient to damage an
ESD.
1-3 Lithium Battery Precautions
1. Exercise caution when replacing a Lithium
battery. There could be a danger of explosion and
subsequent operator injury and/or equipment
damage if incorrectly installed.
2. Be sure to replace the battery with the same or
equivalent type recommended by the
manufacturer.
3. Lithium batteries contain toxic substances and
should not be opened, crushed, or burned for
disposal.
Summary of Contents for MSYS 5150
Page 9: ...2 6 Samsung Electronics Specification Memo ...
Page 16: ...3 26 Samsung Electronics Setup and Installing Memo ...
Page 37: ...4 2 Samsung Electronics Theory of Operation ...
Page 41: ...4 6 Samsung Electronics Memo Theory of Operation ...
Page 116: ...Samsung Electronics 7 9 Maintenance Troubleshooting No Image ...
Page 117: ...Samsung Electronics Maintenance Troubleshooting 7 10 ...
Page 118: ...Samsung Electronics 7 11 Maintenance Troubleshooting All Black ...
Page 119: ...7 12 Samsung Electronics Maintenance Troubleshooting Vertical White Line Band ...
Page 120: ...Samsung Electronics 7 13 Maintenance Troubleshooting Dark Image ...
Page 121: ...7 14 Samsung Electronics Maintenance Troubleshooting Background ...
Page 122: ...Samsung Electronics 7 15 Maintenance Troubleshooting Ghost ...
Page 123: ...7 16 Samsung Electronics Maintenance Troubleshooting Black Dot ...
Page 124: ...Samsung Electronics 7 17 Maintenance Troubleshooting Horizontal Band ...
Page 125: ...7 18 Samsung Electronics Maintenance Troubleshooting Irregular Density ...
Page 126: ...Samsung Electronics 7 19 Maintenance Troubleshooting White Spot ...
Page 127: ...7 20 Samsung Electronics Maintenance Troubleshooting Trembling at the End When OHP Printing ...
Page 128: ...Samsung Electronics 7 21 Maintenance Troubleshooting Poor Fusing Grade ...
Page 132: ...Samsung Electronics 7 25 Maintenance Troubleshooting No Power LCD NO display LED Off ...
Page 133: ...Fuser Error 7 26 Samsung Electronics Maintenance Troubleshooting ...
Page 134: ...Samsung Electronics 7 27 Maintenance Troubleshooting Paper Jam Mis feeding ...
Page 135: ...7 28 Samsung Electronics Maintenance Troubleshooting Paper Jam Jam1 ...
Page 136: ...Samsung Electronics Maintenance Troubleshooting 7 29 Engine Error ...
Page 137: ...7 30 Samsung Electronics Maintenance Troubleshooting Memo ...
Page 187: ...9 28 Samsung Electronics Electrical Parts List ...
Page 189: ...11 Connection Diagram Samsung Electronics 11 1 ...
Page 190: ...12 1 Main Circuit Diagram Samsung Electronics 12 1 12 Schematic Diagrams ...
Page 191: ...Schematic Diagrams 12 2 Samsung Electronics Main Circuit Diagram ...
Page 192: ...Main Circuit Diagram Samsung Electronics 12 3 Schematic Diagrams ...
Page 193: ...Schematic Diagrams 12 4 Samsung Electronics Main Circuit Diagram ...
Page 194: ...Main Circuit Diagram Samsung Electronics 12 5 Schematic Diagrams ...
Page 195: ...Schematic Diagrams 12 6 Samsung Electronics Main Circuit Diagram ...
Page 196: ...Main Circuit Diagram Samsung Electronics 12 7 Schematic Diagrams ...
Page 200: ...12 3 Sensors Circuit Diagram Samsung Electronics 12 11 Schematic Diagrams ...
Page 201: ...Schematic Diagrams 12 12 Samsung Electronics 12 4 Switch Circuit Diagram ...
Page 202: ...Samsung Electronics 12 13 Schematic Diagrams 12 5 Joint Circuit Diagram ...
Page 204: ...Samsung Electronics 12 15 Schematic Diagrams 12 7 PTL Circuit Diagram ...
Page 205: ...Schematic Diagrams 12 16 Samsung Electronics 12 8 SCAN Circuit Diagram ...
Page 206: ...Samsung Electronics 12 17 Schematic Diagrams 12 9 Engin Circuit Diagram ...
Page 207: ...Schematic Diagrams 12 18 Samsung Electronics Engin Circuit Diagram ...
Page 208: ...Samsung Electronics 12 19 Schematic Diagrams 12 10 LIU Circuit Diagram ...
Page 210: ... Samsung Electronics Co Ltd Mar 1999 Printed in Korea P N JC68 00097A Rev 1 00 ELECTRONICS ...