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JVC GM-V42PCE Service Manual page 6

Jvc plasma display monitor service manual
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1.2.2 PRECAUTION DURING NOTES FOR TRANSPORTATION
When transporting the display unit, pressure exerted on the
internal PDP (Plasma Display Panel) due to improper handing
(such as tossing and dropping) may cause damages even when
the unit is carefully packed. To prevent accidents from occurring
during transportation, pay careful attention prior to delivery such
as through exchanging the handing instructions to transporters.
Ensure that the following requirements are met during
transportation, as the PDP of this unit is made of glass and
therefore fragile.
(1) Avoid vibrations and impacts
The unit may be broken if it is toppled sideways even when
properly packed. Ensure that the unit is carried by at least
2 persons and pay careful attention not to exert any
vibration or impact on it.
(2) Do not place equipment lay a PDP on its side.
A PDP should always be placed upright during both
transportation and safekeeping. Don't lay it on its side. The
panel of a PDP is very fragile to the impact in the horizontal
direction.
When a car carries a PDP, load it on board the car in
parallel with the moving direction of the car. Don't lay
several PDPs one on top another.
During safekeeping, don't lay more than two PDPs one on
top another even if they are kept upright.
1.2.3 PRECAUTIONS ON INSTALLATION
To get good heat dissipation from the rear.
This Monitor is not equipped with cooling fans because it is
designed to operate quietly.
If you install the Monitor in such a way as not instructed,
additional methods are required to cool down the Monitor.
A : Horizontal Installation (Normal)
B : Vertical Installation
It is required to attach the Cooling Fan Unit (TS-C01FANG : option).
* Refer to the following figure for how to attach the cooling fan unit.
Cooling Fan Unit
(Option)
1-6 (No.52149)
In the case, the slots and openings in
the cabinet protect the Monitor from
overheating.
* See also "Requirements forsetting"
on page 6 in the instruction.
An option terminal is exclusively
for a cooling fan. Please do not
use it for connection with other
apparatus.
1.2.4 RETAINED-IMAGE / BURN-IN ON SCREEN
Like CRTs, "burn-ins" may occur when a same image is
continuously displayed over an extended period of time.
As this may also shorten the life span of the PDP. Therefore, turn
off the display when not in use, scroll the screen, make use of
screen-savers, or allow even distribution on the display by
inverting the brightness, switching to complementary colors or
inverting animated images at periodic intervals.
As burn-in is more likely to occur with high brightness and
contrast settings, try to use neutral gradations or medium tone
colors.
Burn-in dose not occur in the case of animated images.
When switching to another image after continuous display of the
previous image, residual images may become prominent, as
luminance in a part of the display is higher then the other parts.
This is not a defect but is because due to the discharge surface
of the lighted portion has become being relatively activated and
its luminance higher than the unlighted parts.
1.2.5 BRIGHTNESS CHANGE IN THE SCREEN
In order to save the power consumption, the power is controlled
(with APS function) depending on the brightness of the screen.
For this, the brightness may change after a short time when the
picture of the screen is changed. However, this phenomenon is
not a trouble.
1.2.6 INFRARED RAYS
Because the near infrared rays (800nm~1000nm) radiate from
the panel face, the neighboring infrared ray remote controllers,
infrared communication systems, etc. may malfunction. In these
cases, take a measure to prevent the trouble to be caused by
direct rays (or reflected rays) from the screen by changing the
direction of the screen face or keeping a safe distance between
a PDP and other devices.
1.2.7 OPTICAL FILTER (FRONT FILTER)
Avoid placing the unit under direct sunlight over a prolonged
period of time. This may cause the optical filter to deteriorate in
quality and color.
Clean the filter surface by wiping it softly lightly with outing
flannels a soft and lightly fuzz cloth (such a flannel).
Do not use solvents such as benzene or thinner to wipe the filter
surface. This may cause the filter to deteriorate in quality or the
coating on the surface to come off.
As the filter surface is fragile. Do not scratch or hit it with hard
materials.
1.2.8 NOTES PRECAUTIONS FOR REPLACEMENT OF
EXTERIOR PARTS
Take note of the following when replacing exterior parts (back
REAR COVER, FRONT PANEL, OPTICAL FILTER):
Do not exert pressure on the front of the PDP(glass surface).
Pay careful attention not to scratch or stain the front of the PDP
(surface) with hands.
When replacing exterior parts, the front of the PDP should be
placed facing downward. Place a met, etc. underneath to avoid
causing scratched to the front surface.
However, never use materials that are too soft (such as blanket
cloth). If replacement is made with the PDP surface facing
downward and in contact with the blanket, pressure may be
exerted on the PDP, thus causing damages to it.

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