Panasonic PT-53WX54J Service Manual page 10

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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