CPD-G400 - Sony Monitor Service Manual (repair manual). Page 11

1-6

 

14

 

m

 

M

 

,

 

Only the 

 

1

 

 (power) switch, EXIT, and 

 (CONTROL LOCK) 

of the OPTION menu will operate. If any other items are selected, 
the 

 mark appears on the screen.

 

Repeat the procedure above and set 

 (CONTROL LOCK) to OFF.

 

The colors of most display monitors tend to gradually lose brilliance 
over several years of service. The IMAGE RESTORATION feature 
allows you to restore the color to the original factory quality levels. 
The explanation below explains how to restore the monitor’s color.

 

m

 

M

 

,

 

The picture disappears while the color is being restored (about 2 
seconds). After the color is restored, the picture reappears on the 
screen again.

 

• Before using this feature, the monitor must be in normal operation 

mode (green power indicator on) for at least 30 minutes. If the monitor 
goes into power saving mode, you must return the monitor to normal 
operation mode and wait for 30 minutes for the monitor to be ready. 
You may need to adjust your computer’s power saving settings to keep 
the monitor in normal operation mode for the full 30 minutes. If the 
monitor is not ready, the following message will appear.

• The monitor may gradually lose its ability to perform this function due 

to the natural aging of the picture tube.

 

The HELP menu contains helpful hints and information about this 
monitor.  If your monitor is displaying symptoms that match those 
listed in the HELP menu, follow the on-screen instructions to 
resolve the problem. If the symptoms do not match those listed in 
the HELP menu or if the problem persists, see “Trouble 
symptoms and remedies” on page 17.

 

The main MENU appears on the screen.

 

The following HELP menu appears on the screen.

 

m

 

M

 

Instructions or information to resolve the problem appears on 
the screen.  An explanation of each menu item is given below.

 

If the picture does not fill the screen to the edges or if the picture 
appears too large for the screen, adjust the resolution to the figures 
shown in the menu using your computer. If the input signal 
matches one of this monitor’s factory preset modes, the resolution 
and refresh rate of the current input signal are displayed.

 

If the picture is flickering, adjust the refresh rate to figures shown 
in the menu. If the input signal matches one of this monitor’s 
factory preset modes, the refresh rate of the current input signal is 
displayed.

AVA I L AB L E
A F T ER

WARM– UP

RES TORA T I ON

I MAGE

OPT I ON

RE TURN TO MA I N MENU
RECOMMENDED RESO L U T I ON
F L I CKER
TH I N HOR I ZONT A L

L I NE

D I S TORT ED SHAPE
OUT OF FOCUS
D I SCOLORA T I ON

HE L P

SE T RESOL UT I ON TO
1 2 8 0 X 1 0 2 4 A T

8 5 H z US I NG PC .

CURRENT SE T T I NG

I S

1 2 8 0 X 1 0 2 4 A T

7 5 H z .

RECOMMENDED RESOL UT I ON

SE T RE FRESH RA T E TO
7 5 H z OR 8 5 H z US I NG PC .
CURRENT SE T T I NG

I S 6 0 H z .

F L I CKER

 

15

 

The lines that appear on your screen are damper wires.  See 
page 16 for more information about the damper wires.

 

If the shape of the picture on the screen seems distorted, try 
adjusting the picture’s geometry.  Move the control button 

 

,

 

 to 

jump directly to the GEOMETRY menu.

 

The picture may seem to be out of focus when the red and blue 
color signals are not aligned properly, causing red or blue 
shadows to appear around letters and lines. Try adjusting the 
picture’s convergence to make the shadows disappear. Move the 
control button 

 

,

 

 to jump directly to the CONVERGENCE 

menu. When the CONVERGNECE menu is displayed, the 
contrast, brightness and moire adjustment settings are 
automatically reset for all input signals.

 

If the picture’s color appears abnormal in certain areas of the 
screen, first check for any loose signal cables.  After you have 
checked the cables, try degaussing (demagnetizing) the screen 
manually. Move the control button 

 

,

 

 to jump directly to the 

OPTION menu, then select 

 (DEGAUSS).

 

This monitor has the following three reset methods. Use the 
RESET button to reset the adjustments.

 

Use the control button to select the adjustment item you want to 
reset, and press the RESET button.

 

Press the RESET button when no menu is displayed on the screen. 
Note that the following items are not reset by this method:
• on-screen menu language (page 8)
• on-screen menu position (page 13)
• control lock (page 14)

 

Press and hold the RESET button for more than two seconds.

 

The RESET button does not function when 

 (CONTROL LOCK)  is 

set to ON.