Precautions
1-2
Samsung Electronics
11. High voltage is maintained within specified limits
by close-tolerance, safety-related components and
adjustments. If the high voltage exceeds the
specified limits, check each of the special
components.
12. Design Alteration Warning :
Never alter or add to the mechanical or electrical
design of this unit. Example : Do not add
auxiliary audio or video connectors. Such
alterations might create a safety hazard. Also, any
design changes or additions will void the
manufacturerÕs warranty.
13. Hot Chassis Warning :
Some TV receiver chassis are electrically
connected directly to one conductor of the AC
power cord. If an isolation transformer is not
used, these units may be safely serviced only if
the AC power plug is inserted so that the chassis
is connected to the ground side of the AC source.
To confirm that the AC power plug is inserted
correctly, do the following : Using an AC
voltmeter, measure the voltage between the
chassis and a known earth ground. If the reading
is greater than 1.0V, remove the AC power plug,
reverse its polarity and reinsert. Re-measure the
voltage between the chassis and ground.
14. Some TV chassis are designed to operate with 85
volts AC between chassis and ground,
regardless
of the AC plug polarity
. These units can be safely
serviced
only
if an isolation transformer inserted
between the receiver and the power source.
15. Never defeat any of the B+ voltage interlocks.
Do not apply AC power to the unit (or any of its
assemblies) unless all solid-state heat sinks are
correctly installed.
16. Always connect a test instrumentÕs ground lead to
the instrument chassis ground
before
connecting
the positive lead; always remove the instrumentÕs
ground lead last.
17. Observe the original lead dress, especially near
the following areas : Antenna wiring, sharp
edges, and especially the AC and high voltage
power supplies. Always inspect for pinched, out-
of-place, or frayed wiring. Do not change the
spacing between components and the printed
circuit board. Check the AC power cord for
damage. Make sure that leads and components
do not touch thermally hot parts.
18. Picture Tube Implosion Warning :
The picture tube in this receiver employs
Òintegral implosionÓ protection. To ensure
continued implosion protection, make sure that
the replacement picture tube is the same as the
original.
19. Do not remove, install or handle the picture tube
without first putting on shatterproof goggles
equipped with side shields. Never handle the
picture tube by its neck. Some Òin-lineÓ picture
tubes are equipped with a permanently attached
deflection yoke; do not try to remove such
Òpermanently attachedÓ yokes from the picture
tube.
20. Product Safety Notice :
Some electrical and mechanical parts have special
safety-related characteristics which might not be
obvious from visual inspection. These safety
features and the protection they give might be
lost if the replacement component differs from the
original--even if the replacement is rated for
higher voltage, wattage, etc.
Components that are critical for safety are
indicated in the circuit diagram by shading,
( or ).
Use replacement components that have the same
ratings, especially for flame resistance and
dielectric strength specifications. A replacement
part that does not have the same safety
characteristics as the original might create shock,
fire or other hazards.
Summary of Contents for SCA20
Page 5: ...Reference Information 2 2 Samsung Electronics 2 1 2 IC601 CXP87240A ...
Page 6: ...Reference Information Samsung Electronics 2 3 2 1 3 IC201 CXA1700R ...
Page 7: ...Reference Information 2 4 Samsung Electronics 2 1 4 IC501 KA8322 ...
Page 8: ...Reference Information Samsung Electronics 2 5 2 1 5 ICP01 KS7213 ...
Page 9: ...Reference Information 2 6 Samsung Electronics 2 1 6 ICP03 TDA8786A AD CONVERTER ...
Page 10: ...Reference Information Samsung Electronics 2 7 2 1 7 ICP04 KS7306 DSP ...
Page 11: ...Reference Information 2 8 Samsung Electronics 2 1 8 ICP05 UPD784035 AF MICOM ...
Page 12: ...Reference Information Samsung Electronics 2 9 2 1 9 ICZ01 KS7314 D ZOOM ...
Page 80: ...Exploded View and Parts List 6 18 Samsung Electronics MEMO ...
Page 92: ...Block Diagrams 8 2 Samsung Electronics 8 1 Overall Block Diagram Camera ...
Page 93: ...Block Diagrams Samsung Electronics 8 3 8 2 Overall Block Diagram VCR ...
Page 94: ...Block Diagrams 8 4 Samsung Electronics 8 3 DC DC Converter ...
Page 95: ...Block Diagrams Samsung Electronics 8 5 8 4 Drum Servo ...
Page 96: ...Block Diagrams 8 6 Samsung Electronics 8 5 Capstan Servo ...
Page 97: ...Block Diagrams Samsung Electronics 8 7 8 6 Video Playback ...
Page 98: ...Block Diagrams 8 8 Samsung Electronics 8 7 Video Record ...
Page 99: ...Block Diagrams Samsung Electronics 8 9 8 8 Audio ...
Page 100: ...Block Diagrams 8 10 Samsung Electronics 8 9 Camera Main CCD ...
Page 102: ...PCB Diagrams 9 2 Samsung Electronics 9 1 Main Component Side ...
Page 103: ...PCB Diagrams Samsung Electronics 9 3 Conductor Side ...
Page 104: ...PCB Diagrams 9 4 Samsung Electronics 9 2 Rear Component Side Conductor Side ...
Page 105: ...PCB Diagrams Samsung Electronics 9 5 9 4 Terminal 9 3 Front ...
Page 107: ...PCB Diagrams Samsung Electronics 9 7 Component Side Conductor Side 9 7 CCD ...
Page 108: ...PCB Diagrams 9 8 Samsung Electronics MEMO ...
Page 109: ...PCB Diagrams Samsung Electronics 9 9 9 1 MAIN 2 COMPONENT PATTERN ...
Page 110: ...PCB Diagrams 9 10 Samsung Electronics 9 1 MAIN 2 CONDUCTOR PATTERN ...
Page 111: ...PCB Diagrams Samsung Electronics 9 11 Component Side Conductor Side 9 7 CCD pattern ...
Page 112: ...Samsung Electronics 10 1 10 Wiring Diagram ...
Page 113: ...Wiring Diagram 10 2 Samsung Electronics MEMO ...
Page 116: ...Schematic Diagrams Samsung Electronics 11 3 11 1 DC DC Converter ...
Page 117: ...Schematic Diagrams 11 4 Samsung Electronics T T T T T T 1 2 3 4 5 6 11 2 System Control Servo ...
Page 118: ...1 2 3 4 5 6 7 8 11 3 Video Schematic Diagrams Samsung Electronics 11 5 ...
Page 119: ...Schematic Diagrams 11 6 Samsung Electronics 11 4 Audio Mono ...
Page 120: ...Schematic Diagrams Samsung Electronics 11 7 11 5 Rear ...
Page 121: ...Schematic Diagrams 11 8 Samsung Electronics 11 6 Terminal ...
Page 122: ...Schematic Diagrams Samsung Electronics 11 9 11 7 Camera Main 3 2 1 6 7 4 5 ...
Page 123: ...Schematic Diagrams 11 10 Samsung Electronics 11 8 CCD 1 2 3 4 5 6 7 8 ...
Page 124: ...Schematic Diagrams Samsung Electronics 11 11 11 9 EVF SC A20 ...
Page 125: ...Schematic Diagrams 11 12 Samsung Electronics 11 10 CVF SC A23 A25 ...
Page 126: ...Schematic Diagrams Samsung Electronics 11 13 11 11 Adaptor ...
Page 127: ...Schematic Diagrams 11 14 Samsung Electronics 11 12 Front ...
Page 132: ...Schematic Diagrams Samsung Electronics 11 19 11 7 Camera Main 11 9 Page BLUE ...
Page 133: ...Schematic Diagrams 11 20 Samsung Electronics 11 9 CCD 11 12 Page RED CCD OUT ...
Page 134: ...Schematic Diagrams Samsung Electronics 11 21 11 9 CCD 11 12 Page BLUE ...