2
CAUTION FOR SAFETY
Please read this page before repair the monitor.
The following safety precautions are designed to help you stay safe and prevent accidents during the repair
work.
z
Please take note of these cautionary flags.
Warning
This means
"Potential to sustain injury or even death."
Caution
This means
"Potential to sustain breakage or irreparable damage."
z
Also note these cautionary icons
This means
"CAUTION"
This means
"MUST"
This means
"POTENTIAL ELECTRIC
SHOCK"
This means
"DO NOT"
WARNING
Follow instructions.
Must use same types of wires and components.
The cabinet, chassis, and labels are parts
that require attention. You must follow the
caution notes and safety instructions
presented throughout this User Manual to
prevent damage to them or injury to
yourself.
Prevent electric shock.
The Monitor uses special tubes and tapes
made from insulated materials. Moreover,
some materials are kept from making
contact with the PWB for the sake of
safety.Internal leads are kept from hot
parts or high voltage parts by means of
clamps or other measures. As such, you
must restored these parts to their original
conditions in order to prevent electric
shock or fire.
Perform safety check when done.
Exercise caution while working on the
device as the Monitor contains high
voltage parts and power supply.It is
possible to sustain severe injury or death
if you accidentally touch the wrong
parts.You must disconnect the power
supply while servicing, reassembling, or
change parts. If you touch a live
connection it is possible to sustain severe
injury or death.
Use recommended components.
Every part (such as removed screws,
components, and wiring) must be
restored to their prior conditions after
servicing.Be sure to check everything
that was repaired for damage or
mistakes. Also measure the insulated
impedance with a meg-ohm meter to
confirm that the impedance value is more
than 4M ohm.If the impedance value is
less than 4M ohm, then electric shock or
fire may result.
Do not try to check the HDCP code and
combination circuit.
Use only the recommended components
or componentst that structurally identical
to the originals. This is to ensure safety
and reliability. Pay special attention to
parts in the parts list and circuit diagrams
marked with
. If you use
non-recommended components, then
electric shock or fire may result.
Never remove the shield case protecting
the HDCP code and combination circuit.
Summary of Contents for 42HDF52A
Page 9: ......
Page 10: ......
Page 11: ......
Page 12: ......
Page 26: ...26 7 Block Diagram z Plasma Television ...
Page 27: ...27 z ATSC Module ...
Page 28: ...28 z Power Module ...
Page 29: ...29 8 Connection Diagram ...
Page 31: ...31 10 Basic Block Diagram ...
Page 32: ...32 11 Printed Wiring Board Diagram z Main Board Top Side ...
Page 33: ...33 z Main Board Bottom Side ...
Page 34: ...34 z I O Board Top Side z RS 232 Board Top Side Audio Board Top Side ...
Page 35: ...35 z Audio Transfer Board Top Side L Bottom Side R ...
Page 36: ...36 z Power EMI Board Top Side L Bottom Side R z ATSC Connector Board Top Side L Bottom Side R ...
Page 38: ...38 z Power Board ...
Page 39: ...39 12 Disassembly Diagram z Mechanical ...
Page 40: ...40 z Packing ...
