Service Aids; Class 1 Laser Product; Information About Lead.free Soldering - Philips CED1700 Service Manual

1-4
SERVICE AIDS
Q9
WARNTNG
All
lcs
and
many
other semi-conductors
are
susceptible to electrostatic discharges
(ESD).
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
via
a
wrist
wrap
with
resistance.
Keep components
and
tools
also at
this
potential.
Safety regulations
require
that the set
be restored to
its
original
condition
and that
parts
which are identical with those
specified,
be used
Safety components
are marked by
the symbol
4,.
SERVICE INSTRUCTION
Safety regulations require that after
a
repair, the set must be returned
in
the following points:
-
Route
the wire trees correctly and
llx them with the
mounted cable clamps.
.
Check the insulation
of the AC Power lead for external
damage.
.
Check the strain
relief of the AC Power cord for proper
lunction.
.
Check the electrical DC resistance between the AC Power
Plug and the secondary side (only for
sets
which have
a
AC
Power isolated power supply):
CLASS
1
LASER PRODUCT
its original condition. Pay in particular attention to
1.
Unplug the AC Power cord and connect
a
wire
between the two pins of the AC Power plug.
2.
Set the AC
Power
switch to the "on" position (keep the
AC Power cord unpluggedl).
3.
Measure the resistance value between the pins
of
the
AC Power plug and the metal shielding of the tuner or
the aerial connection on the set. The reading should be
larger than 4.5 Mohm (For U.S.
it
should
be between
4.2 Mohm and
12 Mohm).
4.
Switch
"off"
the sel, and remove the wire between the
two pins
of
the AC Power plug.
.
Check the cabinet for defects, to avoid touching
of any
inner parts
by the customer.
ESD
)
'1.
INFORMATION ABOUT LEAD.FREE SOLDERING
Philips CE
is
producing lead-free
sets from
1.1.2OO5
onwards.
IDENTIFICATION:
Regardless of special logo
(not
always indicated) one
must
treat all
sets from
FJanT66Slonwards, according next
rules:
.
On our website luww.atvourservice.ce.Philios.com
you find more information
to:
x
BGA-deJsoldering (+ baking instructions)
x
Heating-profiles of
BGAs
and other lCs used in philips-sets
*
Lead free
You will
find
this and
more technical information within the "magazine", chapter "workshop
news,,.
For
additional questions please contact your local repair-helpdesk.