Philips FTV1.9EE, Service Manual

Page: 4 / 87

Safety instructions, warnings and notes GB 4 FTV1.9EE 2.
2. Safety instructions, warnings and notes
2.1 Safety instructions
h h h h
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
≥
800 VA);
– safety components, indicated by the symbol
h
, 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 a 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
Ω
and 12 M
Ω;
• 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
w w w w
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. ESD
All ICs and many other semiconductors are susceptible to
electrostatic discharges (ESD
w
). Careless handling 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.
1.
Available ESD protection equipment:
–
complete kit ESD3 (combining all 6 prior products -
small table mat) 4822 310 10671
– wristband tester 4822 344 13999
2. Never replace modules or other components while the unit
is switched on.
3. 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 Notes
1. With DST no failures (error-codes) can be read, when the
set is in Service-mode.
2. If DST reacts with 'error 2', there is no communication
between set and DST. Note that IR-transmitter LED is
positioned at right side of IR-receiver eye of the E-box.
Take into account that receiver-LED on DST is positioned
not in the middle but at the left side. Point corresponding
LED's to each other. In case the amount of Infrared
produced by the screen pollutes the communication, the
set can be set in Standby-mode. Then still the error-
messages can be retrieved.