Panasonic PT-47WX33G, Service Manual

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6. Check with a magnifier for solder bridge between the pins or for dry
joint between pins and soldering pads. To remove a solder bridge, use
a de solder braid as shown in the figure below
IMPORTANT
To protect against possible damage to the solid state devices due to
arcing or static discharge, make certain that all ground wires are
securely connected
CAUTION
The power supply circuit is above earth ground and the chassis cannot
be polarized. Use an isolation transformer when servicing the receiver
to avoid damage to the test equipment or to the chassis. Connect the
test equipment to the proper ground(HOT or COLD) when servicing, or
incorrect voltages will be measured.
WARNING
This receiver has been designed to meet or exceed applicable safety
and x ray radiation protection as specified by government agencies and
independent testing laboratories.
To maintain original product safety design standards relative to x ray
radiation and shock and fire hazard, parts indicated with the symbol
on the schematic must be replaced with identical parts. Order parts
from the manufacturer’sparts center using the parts numbers shown in
this service manual, or provide the chassis number and the part
reference number.
For optimum performance and reliability, all other parts should be
replaced with components of identical specification.
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