Magnavox 19ME601B Service Manual download pdf (Page 27)

5-2 LC9EA

1. Purity Check Mode

This mode cycles through full-screen displays of red,

green, blue, and white to check for non-active pixels.

1. Enter the Service mode.

2. Each time the [7] button on the remote control unit

is pressed, the display changes as follows.

3. To cancel or to exit from the Purity Check Mode,

press [CH RETURN] or [PREV CH] button.

2. VCOM Adjustment

1. Operate the unit for more than 60 minutes.

2. Set the color analyzer at the zero point calibration

and bring the optical receptor pointing at the

center of the LCD-Panel.

Note: The optical receptor must be set

perpendicularly to the LCD Panel surface.

3. Enter the Service mode.

4. Press [3] button on the remote control unit.

5. Press [CHANNEL UP/DOWN] buttons on the

remote control unit so that the color analyzer value

becomes minimum.

6. To cancel or to exit from the VCOM Adjustment,

press [CH RETURN] or [PREV CH] button.

[7] button

Note:

When entering this mode, the default setting is White mode.

Purity Check Mode

[7] button

Red mode

Green mode

Blue mode

Black mode

[7] button

White mode

[7] button

White 20% mode

[7] button

Test Point Adj. Point

Screen

[CHANNEL UP/DOWN]

buttons

M. EQ. Spec.

Color analyzer See below

Figure

Color Analyzer

To avoid interference from ambient

light, this adjustment should be

performed in a dark room.

Perpendicularity

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Magnavox 19ME601B Service Manual Page 27

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