Mitsubishi Electric ED-310BE-OL4 Service Manual page 7

3. SCREEN CHECK MODE
When SCREEN is selected in the service menu, the display check is carried out.
In the display check, OSD displays the test patterns.
By pushing the DISP button, the picture quality adjustment screen is displayed.
Table 3-1 Product operation in the screen check
Button
DVD mechanism
Infrared audio output
Video/audio output
POWER indicator
DISC indicator
Others
Table 3-2 Operation control in the screen check (regular mode)
Button
Joystick
[RTN]
[DISP]
Others
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Figure 3-1 Color bar pattern
Figure 3-3 Flicker pattern
(having black and white lines alternately)
Operation
OFF
Mute
Mute
Lit
Same as in the regular operation.
Detection of error such as voltage error and temperature error is prohibited.
Operation
Switches the screen.
[ ] / [ ]
(color bar < - > white < - > black < - > flicker < - > red < - > green < - > blue)
Returns to the service menu.
Switches the brightness. (default - > Max - > Min...)
Disabled.
search engine
Figure 3-2 Single color pattern
(white, black, red, green, blue)
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Remarks
Remarks