Service Manual
12. Use only a grounded-tip soldering iron to solder or unsolder ES devices.
13. Use only an anti-static type solder removal device. Some solder removal devices not
classied as "anti-static" can generate electrical charges sufcient to damage ES devices.
14. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to
damage ES devices.
15. Do not remove a replacement ES device from its protective package until immediately
before you are ready to install it.
(Most replacement ES devices are packaged with leads electrically shorted together by
conductive foam, aluminum foil or comparable conductive material).
16. Immediately before removing the protective material from the leads of a replacement ES
device, touch the protective material to the chassis or circuit assembly into which the device will
be installed.
CAUTION:
Be sure no power is applied to the chassis or circuit, and observe all other safety
precautions.
17. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise
harmless motion such as the brushing together of your clothes fabric or the lifting of your foot
from a carpeted oor can generate static electricity sufcient to damage an ES device.)
1-3-7. Ordering Spare Parts
Please include the following informations when you order parts. (Particularly the Version letter)
1. Model number, serial number and software version
The model number and serial number can be found on the back cover of each product. Software
version can be found in the Spare Parts List.
2. Spare part No. and description
Spare part No. and description can be found in the Spare Parts List.
1-3-8. Photo used in this manual
The illustration and photos used in this Service Manual may not base on the final design of
products, which may differ from your products in some way.
1-4. How to Read this Service Manual
Using icons
Icons are used to attract the attention of the reader to specic information. The meaning of each
icon is described in the table below:
Note:
A “note” provides information that is not indispensable, but may nevertheless be
valuable to the reader, such as tips and tricks.
6
Model No.: 55DA5550
Summary of Contents for 55DA5550
Page 10: ...Service Manual 2 2 External pictures four faces Front Side Up Side 9 Model No 55DA5550...
Page 11: ...Service Manual Right Side Back Side 10 Model No 55DA5550...
Page 16: ...Service Manual 15 Model No 55DA5550...
Page 17: ...Service Manual 4 3 LCD Panel Backlight Unit LVDS CONNECTOR 16 Model No 55DA5550...
Page 18: ...Service Manual 17 Model No 55DA5550...
Page 24: ...Service Manual Chapter 7 Electrical Parts 7 1 Circuit Diagram Model No 55DA5550...
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Page 32: ...Service Manual 7 2 Wiring Connection Diagram 30 Model No 55DA5550...
Page 38: ...Service Manual 9 2 Mainboard IC Introduction Top view 36 2 1 3 4 5 6 7 8 9 Model No 55DA5550...
Page 39: ...Service Manual Bottom view 37 Model No 55DA5550...