Star Tech Journal

Issue: 1998-October - Vol 20 Issue 8

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STAR,-...TECH JOURNAL
OCTOBER
~ ............ ~
1 998
SEGA GAMEWORKS
CAUTIONS AND WARNINGS
CONCERNING THE SAFE HANDLING
OF VIDEO MONITORS
Technical Services
Sega Game Works
Fremont, California
SUBJECT
PRIMARY SIDE AND
When performing such work
as installing and removing the
monitor, insert-
ing and discon-
necting the ex-
ternal connec-
WARNING!
tors to and from
monitor interior
and the monitor, be sure to
disconnect the power connec-
tor (plug) before starting the
work. Proceeding the work
without following this instruc-
tion can cause electric shock
or malfunctioning. Using the
monitor by converting it
without obtaining a prior per-
mission is not allowed. SEGA
shall not be held liable for any
malfunctioning and accident
caused by said conversion.
SECONDARY SIDE
The Monitor's circuit which
is divided into the Primary
Side and Secondary Side, is
electrically isolated. Do not
touch the primary side, or do
not touch the primary side
and the secondary side simul-
taneously. Failing to observe
the instruction can cause elec-
tric shock and this is very dan-
gerous. When making the
monitor adjustments, use
a non-conductive driver
and make adjustment
without touching any part
other than the Adjustment
V.R. and knob. Also, be
sure not to cause a short
circuit to the Primary side
and Secondary side. If
.
.
.
!
®
ANODE CAP
PRIMARY SIDE
ANODE LEAD
prox.29kV
short circuited, it can cause
electric shock or malfunction-
ing, which is very dangerous.
HIGH-TENSION VOLTAGE
Some of the parts inside the
monitor are subject to high-
tension voltage in excess of
20,000 volts and very danger-
ous. Therefore, do not touch
REAR PART
MAIN BD
FOCUS LEAD
DEMAGNETf
COIL
black)
pprox, I0kV
Approx.
SECONDARY SIDE
(Chassis, sheet metal work, CRT, etc.)
~
~ Disconnect or unplug
l0lcV
FBT Approx.
29kV
OCTOBER
1 998
the monitor interior. Should
soldering and paper wastes,
etc., be mixed in the interior,
turn the power off so as not
to cause malfunctioning or
fire hazard.
CONNECTING mE
CRT
PCB
For combining the CRT and
PCB, use the specified part
no. to maintain the status of
adjustments made at the fac-
tory. The anode of the CRT
itself will be accumulatively
charged as time elapses, gen-
erating high-tension voltage
which is very dangerous. The
monitor should be used with
the Chassis, CRT and PCB
assembled. When repair, etc.,
is required at the time of
malfunctioning be sure to
send it in an "as is assembled"
condition. If these are disas-
sembled, what's charged to
said high-tension voltage can
be discharged, causing a haz-
ardous situation. Therefore,
under no circumstances
should it be disassembled.
AND
STAR ..... TECH JOURNAL
damaging the insulated por-
tions so as not to cause an
electric shock and malfunc-
tioning (For the name of
parts, refer to the above fig-
ures).
Caution Cleaning the
CRT Surfaces
When water, and volatile
chemicals such as benzene,
thinner, etc., spill
on the screen sur-
. ~ .
face, it may be
£ l l subject to dam-
CAtrrlON!
age,therefore,do
not use them.
Also, since the surfaces are
susceptible to damage, refrain
from rubbing them with a
hard material or using a
duster.
For the purpose of static pre-
vention, special coating is
applied to the CRT face of
this product. To protect the
coating, pay attention to the
following points. Damaging
the coating film can cause
electric shock to the custom-
ers. For the caution to be
heeded when cleaning, refer
to the Section of Periodic In-
spection Table.
Do not apply or rub with a
hard item ( a rod with pointed
edge, pen, etc.) to or on the
CRT surface.
Avoid applying stickers, seals,
etc. on the CRT face.
Do not remove aluminum
foils from the CRT corners.
Removing the aluminum foils
can cause static prevention
effects to be lowered.
Static prevention coating is
applied to the CRT surfaces.
When cleaning, pay attention
... continued on page 13
STATIC ELECTRICITY
Touching the CRT surface
causes you to slightly feel
electricity. This is because the
CRT surfaces are subject to
static and will not adversely
affect the human body.
INSTALLATION AND REMOVAL
Ensure that the Magnetizer
Coil, FBT (Fly-Back Trans-
former), Anode Lead and
Focus Lead are not posi-
tioned close to the sheet metal
work's edges, etc., and avoid
AJuminum Foil

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