Read Panasonic TH-47LF6W / TH-47LF60W Service Manual online
17
TH-47LF6W_TH-47LF60W
6.1.3.
LCD Panel test mode
White
Magenta
Yellow
Cyan
Black
[How to display the test pattern]
[Display pattern]
The failure-diagnosis by LCD Panel test mode
To find the possible failure point where in LCD Panel or Printed Circuit Board when the
abnormal picture is displayed.
abnormal picture is displayed.
1. While pressing [VOLUME ( - )] button of the main unit, press [R] button of the
remote control three times within 2 seconds.
2. Test pattern is displayed and Power LED lights red and orange alternately.
remote control three times within 2 seconds.
2. Test pattern is displayed and Power LED lights red and orange alternately.
How to Exit: Turn off the unit.
How to Exit: The unit automatically turns off after around 10 seconds.
1. Press [Recall] button of the remote control.
2. Press [R] button of the remote control.
3. Press [N] button of the remote control for over 3 seconds.
4. Test pattern is displayed and Power LED lights red and orange alternately.
2. Press [R] button of the remote control.
3. Press [N] button of the remote control for over 3 seconds.
4. Test pattern is displayed and Power LED lights red and orange alternately.
It is unfixed from which color it starts.
(1) Main unit + remote control operation
(2) Remote control operation only
[Test pattern output image]
LCD Panel
A-Board
A-Board
LCD
IC
T-CON
Test pattern
Output test pattern from
A-Board
FR-Board
IC
Double-
speed
processing
speed
processing
Video signal processing
IP conversion
OSD synthesis
IP conversion
OSD synthesis
Test pattern
Input
switching
switching
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