Haier HS-2190, Service Manual

Page: 27 / 61

B.Service mode and adjusting items and datas
1. Adjustment
(1) Enter the D-MODE maintenance state with special remote controller
Press the D-MODE ON/OFF button on the factory remote controller 1 to enter the
maintenance state. Character D will appear on the top right corner of the screen and the
following items and data to be adjusted on the top left part:
RCUT 20 D
After entering the adjustment state, press button
↑
or
↓
to select the item and button
→
or
←
to adjust the data of that item.
Example:
a. Adjustment of horizontal center, frame center and frame size.
Receive standard test card signal and adjust the brightness, contrast and chrominance to the
middle position. Press button D-MODE ON/OFF to enter the maintenance adjustment state.
Press button
↓
to select the horizontal center (HPOS) to be adjusted. Press button
→
or
←
until the horizontal center of the picture is in the center of the screen. The horizontal center is
properly adjusted.
Next, adjust the frame center of the picture. Press button
↓
to select the frame center (VP50)
to be adjusted. Press button
→
or
←
until the frame center of the picture is in the center of the
screen. The frame center is properly adjusted.
Finally, adjust the frame size of the picture. Press button
↓
to select the frame size to be
adjusted (HIT). Press button
→
or
←
until the frame size is full on the screen.
When the adjustment completes, press button D-MODE ON/OFF to quit the D-MODE
maintenance adjustment state. The D on the top right corner of the screen disappears. You can
also quit the D-MODE maintenance state with remote control.
b. dark balance adjustment
First, enter D-MODE to check if the preset data of red, green and blue guns are correct. The
RCUT item appears first. Adjust button
→
or
←
until the data of RCUT is 20. Press button
↓
to select the GCUT item and make the data of GCUT 20. Press button
↓
to select the GCUT
item and make the data of BCUT 20. All the preset data of the dark/bright balance of each
gun are adjusted in this way as shown in the following table
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