DOWNLOAD Sharp LL-T1820 (serv.man11) Service Manual ↓ Size: 1.13 MB | Pages: 33 in PDF or view online for FREE

Model
LL-T1820 (serv.man11)
Pages
33
Size
1.13 MB
Type
PDF
Document
User Manual / Operation Manual
Brand
Device
Monitor
File
ll-t1820-sm11.pdf
Date

Sharp LL-T1820 (serv.man11) User Manual / Operation Manual ▷ View online

17
English
Adjusting the screen display
For analog signal
1. First perform an automatic adjustment. (p.
 
18)
2. Perform manual adjustment where necessary.
(p.
 
19)
For digital signal
The monitor can generally be used without
adjustment. If necessary perform manual adjust-
ment. (p.
 
22)
Note:
-
All adjustments will be saved even after turning
the power off.
Adjustment value reset
Resetting all adjustment values
All adjustment values can be returned to their origi-
nal ex-factory values in one command.
1. Turn off the monitor power.
2. Press the MENU button and the SELECT button
simultaneously, and while doing this press the
power button (i.e. turn the power on). When [ALL
RESET] appears on the screen, the reset is
complete.
Note:
-
While ALL RESET is displayed, the control
buttons are disabled.
-
It is not possible to reset values when the
adjustment lock is in place. Remove the
adjustment lock before attempting to operate
control buttons.
ADJUSTMENT menu reset
The adjustment values of the analogue signal time’s
ADJUSTMENT menu can be returned to their original
ex-factory values.
1. Turn on the monitor power.
2. Press the MENU button and the   button
simultaneously. When [RESET] appears on the
screen, the reset is complete.
Adjustment lock function
By disabling the control buttons (i.e. setting the lock)
any attempted changes to adjusted values will be
voided.
1. Turn off the monitor power.
2. While pressing the MENU button, press the
power button (i.e. turn the power on).
Continue to press the button until the message
appears on the screen.
When the menu is unlocked:
     [ADJUSTMENT LOCKED] will appear on
     the screen, and the lock will be set.
When the menu is locked:
     [ADJUSTMENT UNLOCKED] will appear
     on the screen, and the lock will be
     removed.
Note:
-
When the lock is in place, all buttons other than
the power button are disabled.
Adjusting the backlight
The backlight brightness can be adjusted.
Carry out the commands without the On Screen
Display (OSD) Menu displayed. If the OSD Menu is
displayed, press the MENU button (several times
may be required) and begin when the OSD Menu has
disappeared.
1. Without the OSD Menu being displayed, push the
 or the   button. At the bottom of the screen
the BRIGHT bar will appear.
2. Adjust by pressing the   button (darker) or 
button (lighter).
The BRIGHT bar automatically disappears approxi-
mately 5 seconds after the last command.
18
Adjusting the screen display 
(With analog connection)
Automatic screen adjustment
Options in the ADJUSTMENT Menu can be adjusted
automatically (CLOCK, PHASE, H-POS V-POS).
Note:
-
When setting up this monitor for the first time or
after having changed an aspect of the current
system, perform an automatic screen adjustment
before use.
On Screen Display for the automatic
adjustment
First display an image that makes the entire screen
light.
If you are using Windows, you can use the
Adjustment Pattern on the accompanying CD-ROM.
Opening the Adjustment Pattern (for Windows)
This explanation is for Windows 95/98/2000/Me/XP,
and assumes that the CD-ROM drive is "D drive".
1. Load the accessory CD-ROM into the CD-ROM
drive of the computer.
2. Open [My Computer] and select CD-ROM. If
using Windows 3.1, open [File Manager] and
choose "D drive".
3. Double click on [Adj_uty.exe] to run the
Adjustment Program. The Adjustment Pattern will
appear.
Adjustment pattern
Notes:
-
After completing the adjustments, press the
computer’s [Esc] key to exit the Adjustment
Program.
-
If your computer’s display mode is set to 65K
colors, you may see the different color levels in
each color pattern or the gray scale may look
colored. (This is due to the specification of the
input signal and is not a malfunction.)
How to Adjust
1. Press the MENU button.
The ADJUSTMENT Menu will be displayed.
2. Press the   button.
The screen will become dark and [ADJUSTING]
will be displayed. After a few seconds the
ADJUSTMENT Menu will return. (The automatic
adjustment is now complete.)
3. Press the MENU button 4 times to make the
OSD Menu disappear.
Notes:
-
In most cases automatic adjustment is sufficient.
-
If necessary due to any of the following, manual
adjustments (p. 19) can be performed after the
automatic adjustment.
-
When further fine adjustment is needed.
-
When the computer’s video input signals are
Composite Sync or Sync On Green.
(Automatic adjustments may not be possible.)
-
When [OUT OF ADJUST] is displayed.
(When the screen displays an entirely dark
image, the automatic screen adjustment may
be disabled. When making an automatic
adjustment, be sure to either use the
Adjustment Pattern or try displaying an image
that makes the entire screen very bright.)
19
English
Manual screen adjustment
Adjustments can be made using On Screen Display
(OSD) Menu provided.
On Screen Display for adjustment
If you are using Windows, open the Adjustment
Pattern on the accompanying CD-ROM. (p. 18)
If your system is not Windows, you can not use the
Adjustment Pattern. Therefore display an image that
makes the entire screen light and adjust it through
checking visually its actual tone.
This chapter provides the procedure how to adjust
the screen by using Adjustment Pattern (for Win-
dows)
How to adjust
1. Press the MENU button.
The ADJUSTMENT Menu will be displayed.
At this point relevant menu options can be
adjusted.
Each time the MENU button is pressed the next
menu is selected. (ADJUSTMENT 
→ GAIN
CONTROL 
→ COLOR CONTROL → MODE
SELECT 
→ OSD Menu disappears)
Notes:
-
The OSD Menu automatically disappears
approximately 30 seconds after the last
command.
ADJUSTMENT Menu
MANUAL: Individual menu options are manually
adjusted.
AUTO:
Every menu option is automatically
adjusted.
Notes:
-
Press the   button to select [AUTO].
-
To choose a menu option:SELECT button
-
To go to the next menu:
MENU button
CLOCK
The figure below demonstrates how to adjust so that
vertical flicker noise is not emitted. (    buttons)
PHASE
The figure below demonstrates how to adjust so that
horizontal flicker noise is not emitted. (    buttons)
Note:
-
Adjustments to PHASE should be made only
after CLOCK has been correctly set.
H-POS (horizontal positioning) and V-POS
(vertical positioning)
To center the screen image within the boundaries of
the screen, adjust the left-right (H-POS) values and
the up-down (V-POS) values. (    buttons)
Adjusting the screen display (With analog connection)
Vertical flicker noise
Horizontal flicker noise
Screen frame
20
COLOR CONTROL Menu
Notes:
-
To choose a menu option:SELECT button
-
To go to the next menu:
MENU button
COLOR MODE
Color tone can be set as below.
STD ..... Displays image with the color tone
results from original scheme of liquid
crystal panel.
sRGB ... sRGB is international standard of color
representation specified by IEC
(International Electrotechnical
Commission). Color conversion is made
in taking account of liquid crystal’s
characteristics and represents color tone
close to it original image.
VIVID ... Displays an image with dynamic and
VIVID primary colors.
-
If [sRGB] or [VIVID] has been selected, items
subsequent to [WHITE BALANCE] cannot be set.
Subsequent items can be set when the [COLOR MODE]
is [STD].
WHITE BALANCE
After selecting [WHITE BALANCE], press the   but-
ton and display the adjustment menu.
Notes:
-
On settings other than [STD] not all graduations
can be displayed. To display all graduations, set
to [STD].
-
Use the     buttons to select [COOL], [·], [STD],
[·], [WARM] or [USER].
-
Selecting USER will display the setting values for
[R-CONTRAST], [G-CONTRAST] and [B-
CONTRAST], in order to make fine adjustments.
-
Use the SELECT button to select
[R-CONTRAST], [G-CONTRAST] and
[B-CONTRAST].
-
When adjustment complete: MENU button
GAIN CONTROL Menu
MANUAL: Individual menu options are manually
adjusted.
AUTO:
Every menu option is automatically
adjusted using the Auto Gain Control*
function.
Notes:
-
Press the   button to select [AUTO].
-
To choose a menu option: SELECT button
-
To go to the next menu:
MENU button
* Auto Gain Control function
-
The Auto Gain Control adjusts contrast and black
level based on the brightest color of the image
displayed. If you are not using the Adjustment
Pattern it is necessary to have an area of 5 mm x
5 mm of white displayed, and if not adjustments
may not be possible. (In such case, [OUT OF
ADJUST] will appear and setting values remain
unchanged.)
-
If the signal coming from the computer is
composite sync or sync on green, automatic
adjustment cannot be performed. Please perform
manual adjustment instead.
BLACK LEVEL
Total screen brightness can be adjusted while
watching the color pattern. (    buttons)
CONTRAST
While watching the color pattern, adjustments can be
made so that all graduations appear. (    buttons)
Adjusting the screen display (With analog connection)
Color pattern
Page of 33
Display

Click on the first or last page to see other LL-T1820 (serv.man11) service manuals if exist.