Download Print this page

Sanyo PDP-63XR7HB Service Manual page 4

Advertisement

against static electricity. During maintenance operation be sure to cover yourself with anti-static
bag and before operation make sure to have it sufficiently grounded.
1.11 There are a big number of connection wires distributed around the screen. Please take
care not to touch or scuff them during maintenance or removing the screen, because once they
are damaged the screen will fail to work and it's not possible to repair it.
If the connection wires, connectors or components fixed by the thermotropic glue need to
disengage when service, please soak the thermotropic glue into the alcohol and then pull them
out in case of damage.
1.12 Connector for the circuit board of the screen part is relatively fine and delicate. Please
take care in the replacement operation lest it should get damaged.
1.13 Special care must be taken during transportation and handling because strenuous
vibration could lead to screen glass breakage or damage on the driving circuitry. Be sure to use
a strong outer case to pack it up before transportation or handling.
1.14 Please put it for storage in an environment in which the conditions are under control so as
to prevent the temperature and humidity from exceeding the scope stipulated in the
specification. For prolonged storage please cover it with anti-moisture bag and have them piled
and stored in one place. The environmental conditions are tabulated as below:
Temperature
Humidity
1.15 If a fixed picture is displayed for a long time, difference in its brightness and color may
occur compared with movable pictures. But it doesn't show any problem and the reason is that
there is reduced density of fluorescent powder in the former. On the other hand, even if
changes take place in the picture, it can keep its brightness for a period of time (several
minutes). It's a feature inherent with plasma and it's not abnormal. However please try as much
as possible to avoid showing a still picture of high brightness for a long time during operation.
1.16 As a digitalized display devise, this module is provided with error diffusion technology and
the gray scale and false enhancement of contour can be displayed by reusing of sub-field. As
compared with cathode ray tube, it can be found in the moving picture that at the brim of the
face of a person there are some wrong colors.
1.17 During the display of graph (indicating the gradual change in brightness horizontally or
vertically) resulting from gray scale test it can be found that the brightness for the two adjacent
levels is uneven. This is caused by the reuse of sub-field, the display of load rectification and
the electrolysis.
1.18 The screen front plate is of glass. Please make sure that the screen has been put in place
during erection. If it is not in place before the erection begins it may lead to screen crack or
breakage.
1.19 Make sure the screw used in the mounting of the screen is of the original specs lest it
should cause damage to the screen due to mismatch. Special care should be taken not to use
too long or too big screw.
1.20 Care must be taken to guard against dust during assembling or dismantling, especially to
avoid dirt from falling in between the screen and the glass lest it should harm the receiving and
Scope for operation
Scope for storage
Scope for operation
Scope for storage
2
0~50centigrade
-15~60centigrade
20%~80%
20%~80%

Advertisement

loading