Read Panasonic TH-50BF1U / TH-50BF1W / TH-50BF1E Service Manual online
INF-5
SECTION 1 SERVICE INFORMATION
<50BF1>
2. Notes on Service
2.1. Before service operation
2.1.1. LCD panel module
1. Although an LCD panel module is a product of high-precision technology, some of the pixels on the image may be missing
or constantly lit. Please note that this is not a failure.
2. Displaying a still image for a longer time may result in an after-image on the LCD panels. If this happens, display the all
white screen in the test pattern for an hour or more.
2.2. Service
2.2.1. Supporting Methods
The basic service policy is shown below.
Repair contents
Applied parts
Block replacement
Module replacement
- LCD panel module
- PCB module
Replaced by discrete components
Other electrical parts and mechanism parts
2.2.2. Repair
1. Before repairing, make sure to turn off the main power and disconnect the power plug from the power outlet.
* When replacing the PCB module, the internal electrical parts can be broken by the static electricity of clothes or human
body. Please take care in static electricity, use an antistatic wrist strap or wear the anti-static electricity gloves.
2. After repairing, please check the gradation (10 step or the gray scale) test pattern or moving image.
Also, please check that it is normal on a self check screen.
2.2.3. Replacement of A-Module
1. When replacing A-module due to the defective, adjustment data copy to new A-module is available. Please refer to the
"USB Cloning (Adj.8-9) " in the SECTION3.
2. When A-module is replaced, the MAC address of LAN will be changed. Explain it to the customers in advance.
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