Sanyo PDP-63XR7HB Service Manual

Contents

2against static electricity. During maintenance operation be sure to cover yourself with anti-staticbag 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 takecare not to touch or scuff them during maintenance or removing the screen, because once theyare 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 todisengage when service, please soak the thermotropic glue into the alcohol and then pull themout in case of damage.1.12 Connector for the circuit board of the screen part is relatively fine and delicate. Pleasetake care in the replacement operation lest it should get damaged.1.13 Special care must be taken during transportation and handling because strenuousvibration could lead to screen glass breakage or damage on the driving circuitry. Be sure to usea 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 asto prevent the temperature and humidity from exceeding the scope stipulated in thespecification. For prolonged storage please cover it with anti-moisture bag and have them piledand stored in one place. The environmental conditions are tabulated as below:Temperature Scope for operation 0~50centigradeScope for storage -15~60centigradeHumidity Scope for operation 20%~80%Scope for storage 20%~80%1.15 If a fixed picture is displayed for a long time, difference in its brightness and color mayoccur compared with movable pictures. But it doesn’t show any problem and the reason is thatthere is reduced density of fluorescent powder in the former. On the other hand, even ifchanges take place in the picture, it can keep its brightness for a period of time (severalminutes). It’s a feature inherent with plasma and it’s not abnormal. However please try as muchas 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 andthe gray scale and false enhancement of contour can be displayed by reusing of sub-field. Ascompared with cathode ray tube, it can be found in the moving picture that at the brim of theface of a person there are some wrong colors.1.17 During the display of graph (indicating the gradual change in brightness horizontally orvertically) resulting from gray scale test it can be found that the brightness for the two adjacentlevels is uneven. This is caused by the reuse of sub-field, the display of load rectification andthe electrolysis.1.18 The screen front plate is of glass. Please make sure that the screen has been put in placeduring erection. If it is not in place before the erection begins it may lead to screen crack orbreakage.1.19 Make sure the screw used in the mounting of the screen is of the original specs lest itshould cause damage to the screen due to mismatch. Special care should be taken not to usetoo long or too big screw.1.20 Care must be taken to guard against dust during assembling or dismantling, especially toavoid dirt from falling in between the screen and the glass lest it should harm the receiving and