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EN 6
2.
S/SD/HD 3.1 PDP
2. Safety Instructions, Warnings and Notes
** To prevent the risks of unit damage, electrical shock and radiation, take the following safety, service, and ESD precautions.
Safety instructions
2.1
It is not allowed to operate the FTV-set without glass plate. One
function of this glass plate is to absorb Infrared Radiation.
Without this glass plate the level of Infrared Radiation produced
by the plasma display could damage your eyes.
1. Safety regulations require that during a repair:
–
the set should be connected to the mains via an
isolating transformer ( in this particular case a
transformer of
safety components, indicated by the symbol
–
should be replaced by components identical to the
original ones;
2. Safety regulations require that after a repair the set must
be returned in its original condition. In particular attention
should be paid to the following points.
–
Note: The wire trees should be routed correctly and
fixed with the mounted cable clamps.
–
The insulation of the mains lead should be checked for
external damage.
–
The electrical DC resistance between the mains plug
and the secondary side should be checked (only for
sets that have mains isolated power supply). This
check can be done as follows:
–
unplug the mains cord and connect a wire between the
two pins of the mains plug;
–
set the mains switch to the on position (keep the mains
cord unplugged!);
–
measure the resistance value between the pins of the
mains plug and the metal shielding of the tuner or the
aerial connection on the set. The reading should be
between 4.5 M
–
switch off the TV and remove the wire between the two
pins of the mains plug.
–
The cabinet should be checked for defects to avoid
touching of any inner parts by the customer.
2.2
Warnings
1. ESD
All ICs and many other semiconductors are susceptible to
electrostatic discharges (ESD
during repair can reduce life drastically. When repairing,
make sure that you are connected with the same potential
as the mass of the set by a wristband with resistance.
Keep components and tools also at this same potential.
2. Available ESD protection equipment:
–
complete kit ESD3 (combining all 6 prior products -
small table mat) 4822 310 10671
–
wristband tester 4822 344 13999
3. Never replace modules or other components while the unit
is switched on.
4. When making settings, use plastic rather than metal tools.
This will prevent any short circuits and the danger of a
circuit becoming unstable.
2.3
Handling Precautions for Plasma Display
•
PDP module use high voltage that is dangerous to human.
Before operating PDP, always check the dust to prevent
short circuit. Be careful touching the circuit device when
power is on.
•
PDP module is sensitive to dust and humidity. Therefore,
assembling and disassembling must be done in no dust
place.
Safety Instructions, Warnings and Notes
≥
800 VA);
Ω
Ω
and 12 M
;
). Careless handling
•
PDP module has a lot of electric devices. Service engineer
must wear equipment(for example, earth ring) to prevent
electric shock and working clothes to prevent electrostatic.
•
PDP module use a fine pitch connector which is only
working by exactly connecting with flat cable. Operator
must pay attention to a complete connection when
connector is reconnected after repairing.
•
The capacitor's remaining voltage in the PDP module's
circuit board temporarily remains after power is off.
Operator must wait for discharging of remaining voltage
during at least 1 minute.
2.4
Safety Precautions for Service (Handling,
prevention of a electrical shock)
2.4.1
(Safety Precautions)
•
Before replacing a board, discharge forcibly
•
The remaining electricity from board.
•
When connecting FFC and TCPs to the module, recheck
that they are perfectly connected.
•
To prevent electrical shock, be careful not to touch leads
during circuit operations.
•
To prevent the Logic circuit from being damaged due to
wrong working, do not connect/disconnect signal cables
during circuit operations.
•
Do thoroughly adjustment of a voltage label and voltage-
insulation.
•
Before reinstalling the chassis and the chassis assembly,
be sure to use all protective stuffs including a nonmetal
controlling handle and the covering of partitioning type.
•
Caution for design change : Do not install any additional
devices to the module, and do not change the electrical
circuit design.
•
For example: Do not insert a subsidiary audio or video
connector. If you insert It, It cause danger on safety. And,
If you change the design or insert, Manufactor guarantee
will be not effect. .
•
If any parts of wire is overheats of damaged, replace it with
a new specified one immediately, and identify the cause of
the problem and remove the possible dangerous factors.
•
Examine carefully the cable status if it is twisted or
damaged or displaced. Do not change the space between
parts and circuit board. Check the cord of AC power
preparing damage.
•
Product Safety Mark: Some of electric or implement
material have special characteristics invisible that was
related on safety. In case of the parts are changed with new
one, even though the Voltage and Watt is higher than
before, the Safety and Protection function will be lost.
•
The AC power always should be turned off, before next
repair..
•
Check assembly condition of screw, parts and wire
arrangement after repairing. Check whether the material
around the parts get damaged.
2.4.2
(Precaution when repairing ESD)
•
There is ESD which is easily damaged by
electrostatics.(for example Integrated circuit, FET)
Electrostatic damage rate of product will be reduced by the
following technics
•
Before handling semiconductor parts/assembly, must
remove positive electric by ground connection, or must
wear the antistatic wrist-belt and ring. (It must be operated
after removing dust on it - It comes under precaution of
electric shock.)
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