Samsung VXK-306 - Electrostatically Sensitive (ES) Devices; General Information

4. Observe original lead dress. Take extra care to assure
correct lead dress in the following areas: a) near sharp
edges, b) near thermally hot parts-be sure that leads and
components do not touch thermally hot parts, c) the AC
supply, and d) antenna wiring. Always inspect in all areas
for pinched, out-of-place, or frayed wiring between
components and the printed circuit board.
Check AC power cord for damage.
5. Components, parts and/or wiring that appear to have
overheated or are otherwise damaged should be replaced
with components, parts, or wiring that meet original
specifications, Additionally, determine the cause of
overheaing and/or damage and, if necessary, take
corrective action to remove any potential safety hazard.
6. Product Safety Notice
Some electrical and mechanical parts have special safety
related characteristics which are often not evident from
visual inspection, nor can the protection they give
necessarily be obtained by replacing them with components
rated for higher voltage,wattage etc. Parts that have special
safety characteristics are identified by a( * ) or ( A\) on
schematics and parts list. Use of a substitute replacement
that does not have the same safety characteristics as the
recommended replacement part might create shock, fire,
and/or other hazards.
Products safety is under review continuously and new
instructions are issued whenever appropriate.
1-2, 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 transisters and semiconductor "chip" components.
The following techniques should be used to help reduce the
incidence of component damage caused by static electricity.
1. Immediately before handling any semiconductor
component or semiconductor-equipped assembly, drain off
any electrostatic charge on your body by touching a known
earth ground. Altematively, obtain and wear a
commercially available discharging wrist strap device,
which should be removed for potential shock reasons prior
to appling 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.
1-2
4. Use only an anti-static type solder removal device.
Some solder removal devices not classified as “anti-static”
can generate electrical charges 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 foam, aluminum
foil or comparable conductive material)
7. Immediately before removing the protective material
from the leads of a replacement ES device, touch the
protective material to the chassis or circuit assembly into
which the device will be installed.
CAUTION : Be sure no power is applied to the chassis or
circuit, and observe all other safety precautions.
8. Minimize bodily motions when handling unpackaged
replacement ES devices. (Otherwise harmless motion such
as the brushing together of your clothes fabric or the lifting
of your foot from a carpeted floor can generate static
electricity sufficient to damage an ES device).
SPECIALNOTE. ... .
handling
“alectrostatically sensitive (ES) devices” section of this sarvice manual.
Do not use the part munber shown on this drawing for ordering. Tha correct part
rueuber is shown in the parts list. And may be slightly Gfferent or amended since
1-3. GENERAL INFORMATION
e VISS (VHS Index Search System)
VISS is the function of searching swiftly to previously
designated points of interest on the tape using the index
signal.
- Index Search
This function fast forward or rewinds the tape to the point
with the specified index signal, and starts playback from
there automatically.
- Index Scan
This function fast forwards or rewinds the tape to the point
with the first adjacent index signal, and starts playback 5
seconds before searching for the next index signal. This
operating continues until all index signals have been found
in the selected direction.
e SHUTTLE
During playback, each time press the SHUTTLE button,
the picture speed will be changed as follows. Slow motion -
Still -1 to -11 times speed. During playback, each time
press the SHUTTLE button, the picture speed will be
changed -11 times speed picture.
e MULTI ON-SCREEN DISPLAY
On-screen display system for timer programming and mode
display. It is possible to select one among 4 languages ;
German, Spanish, English, Italian.
e HYPER BAND TUNING
It is possible to tune the Hyper band channels.
e@ AUTOMATIC DIGITAL TRACKING
Adjusts the tracking automatically to obtain the best
tracking position. When a cassette is inserted, the DIGITAL
TRACKING will function until the tracking is set.
e Unattended (Timer) Recording
The programmable timer can be preselected up to one
month in advance to record up to 4 preselected programs.
(Normal program, daily program or weekly program)
The timer turns VCR on and off, and changes channels
automatically.
Feature by model
Model Head
————+—
VXK-306 2H'd
Tape Speed HYPER Band Tuning
e OTR (ONE TOUCH RECORDING)
It is possible to record up to 9 hours without programming
the timer. It is also possible to start (continue) recording
immediately.
e LTC (Linear TIME Counter)
This function resets the counter when front loading starts
after inserting a tape. Linear time counter indicates the
elapsed time of the tape running as second.
e Double Speed Playback
Pushing PLAY button again in the playback mode, picture
search is performed 2 times as fast as normal playback.
e Frame Advance
This function can be advanced one by one frame by
pushing P/S button.
e SLOW (Various Slow Motion Playback)
This is for adjustment of the slow speed operation in
playback.
e Warp Search
It is possible to search the picture during rewinding or fast
forward the tape.
e Q. PRO (Quick-Program)
The Quick- Program is a faster method of programming
the recorder for timer recording.
VXK-307 2H'd
VXK-336 SP/LP
VXK-337 4 =m d SP/LP
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