Sharp LL-T181A (serv.man3) Service Manual ▷ View online
3. In the case of connecting to Power Macintosh.
When you are going to the monitor to a Power Macintosh, use the
adapter for Macintosh which is supplied with this monitor. Secure the
signal cable and adapter with the screws.
adapter for Macintosh which is supplied with this monitor. Secure the
signal cable and adapter with the screws.
There is no need to use the adapter for Macintosh if the computer
you use is a Power Macintosh G3 model (Blue & White) machine.
Regarding the display mode settings, make sure to select the reso-
lution and frequency (refer to the signal timing list) compatible with
this monitor from the control panel.
you use is a Power Macintosh G3 model (Blue & White) machine.
Regarding the display mode settings, make sure to select the reso-
lution and frequency (refer to the signal timing list) compatible with
this monitor from the control panel.
4. In the case of using the analog RGB terminal 2
Slide the stand rear cover at the back of the monitor downward to
remove it from the monitor. Connect the signal cable to the analog
RGB input terminal 2 inside the cover. Secure the signal cable
with the screws. The signal cable should be purchased separately.
(Sharp QCNW-0044FTZZ is recommended.)
remove it from the monitor. Connect the signal cable to the analog
RGB input terminal 2 inside the cover. Secure the signal cable
with the screws. The signal cable should be purchased separately.
(Sharp QCNW-0044FTZZ is recommended.)
Reinstall the stand rear cover.
Switch over the input signals using the INPUT button on the front
side.
side.
Automatic screen adjustment
When the monitor is set up for the first time or when any setting of the
system has been changed, perform the automatic screen adjustment;
the settings of [CLOCK], [PHASE], [H-POS], and [V-POS] are auto-
matically optimized.
system has been changed, perform the automatic screen adjustment;
the settings of [CLOCK], [PHASE], [H-POS], and [V-POS] are auto-
matically optimized.
When the automatic screen adjustment is performed, the entire
screen needs to display a bright image.
screen needs to display a bright image.
Perform the automatic screen adjustment in the following manner:
Press the MENU button once.
[Menu 1] appears on the screen.
Make sure that MANUAL has been selected from the ADJUST-
MENT menu options.
MENT menu options.
Press the button to select AUTO.
The screen becomes darker and [ADJUSTING] appears on the
screen.
In a few seconds, the screen returns to normal and the menu
appears.
screen.
In a few seconds, the screen returns to normal and the menu
appears.
The setup is over by finishing the automatic screen adjustment, Usu-
ally the monitor is properly adjusted by performing the automatic
screen adjustment. However, if you need a fine adjustment, adjust the
screen manually, using the adjustment disk supplied with the monitor.
ally the monitor is properly adjusted by performing the automatic
screen adjustment. However, if you need a fine adjustment, adjust the
screen manually, using the adjustment disk supplied with the monitor.
For the procedure for carrying out a fine adjustment, refer to the
paragraph "Manual screen adjustment.
paragraph "Manual screen adjustment.
Note:
·
You cannot make the automatic screen adjustment in some
cases, for instance, when the entire screen looks extremely
dark. When the automatic screen adjustment does not function
properly, the message [OUT OF ADJUST] appears on the
screen, and the settings of the screen remain unchanged. In
such a case, get the screen to have a bright image on its entire
surface and try to carry out the automatic screen adjustment
again, or adjust manually.
cases, for instance, when the entire screen looks extremely
dark. When the automatic screen adjustment does not function
properly, the message [OUT OF ADJUST] appears on the
screen, and the settings of the screen remain unchanged. In
such a case, get the screen to have a bright image on its entire
surface and try to carry out the automatic screen adjustment
again, or adjust manually.
·
If the video signal from the computer is a composite sync. or
sync.-on-green, the automatic adjustment might function
properly. If this is the case, carry out a fine adjustment
manually.
sync.-on-green, the automatic adjustment might function
properly. If this is the case, carry out a fine adjustment
manually.
·
In the case where the display mode is a resolution lower than
1280 x 1024 dots, dark areas might remain around the image
on the screen, but this is not a failure.
1280 x 1024 dots, dark areas might remain around the image
on the screen, but this is not a failure.
Signal Cable
Power Macintosh
Adapter for
Macintosh
Computers
Macintosh
Computers
Analog Output
Terminal
Terminal
Monitor
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MENU 1
MENU 1
Monitor Returns to MENU 1
MENU
Monitor Indicates
ADJUSTING
Manual screen adjustment
When the screen needs to be finely adjusted, adjust manually using
the adjustment disk (for Windows) supplied with the monitor.
the adjustment disk (for Windows) supplied with the monitor.
When your computer’s OS is not Windows, make a fine adjustment
observing the screen.
observing the screen.
1. Outline of adjustment
Every time the MENU button is pressed once, the screen is
switched over as follows:
switched over as follows:
Each of the menus on screen shows approximate values of the
input signal resolution, vertical frequency (V:), and horizontal fre-
quency (H:) at the bottom of the menu.
input signal resolution, vertical frequency (V:), and horizontal fre-
quency (H:) at the bottom of the menu.
The factory setting values of [H-POS] and [V-POS] in Menu 1
varies with the resolution.
varies with the resolution.
The settings of [R-CONT], [G-CONT], and [B-CONT] are not
shown unless the [COLOR MODE] is in [USER].
shown unless the [COLOR MODE] is in [USER].
With Menu 4 on screen, the screen condition may not change even
if you can select menu options in some of the input signal resolu-
tions.
if you can select menu options in some of the input signal resolu-
tions.
With one of the Menus onscreen, select the option you want to
adjust using the SELECT button. Every time the button is pressed,
the highlighted item moves down.
adjust using the SELECT button. Every time the button is pressed,
the highlighted item moves down.
Use the or button to adjust or switch over.
The setting thus adjusted is automatically saved in memory and
remains as it is after the power is turned off.
remains as it is after the power is turned off.
If any key operation does not occur for more than 20 seconds during
the adjustment procedure, the menu disappears.
the adjustment procedure, the menu disappears.
2. How to use the adjustment program
In this manual, the descriptions are written on the assumption that
you use Windows 95/98.
In addition, it is assumed that the floppy disk drive is drive A.
you use Windows 95/98.
In addition, it is assumed that the floppy disk drive is drive A.
[Start]
Insert the attached "Adjustment disk" into drive A.
Open "3.5 inch FD (A):" in "My computer".
(In the case of Windows 3.1, open "File manager" and select
drive A.)
(In the case of Windows 3.1, open "File manager" and select
drive A.)
Double click "Adj_uty.exe" to start the adjustment program.
[Adjustment]
When the adjustment program starts up, the adjustment pat-
tern shown on the right appears on the screen. Make an ad-
justment according to the instructions on the screen.
tern shown on the right appears on the screen. Make an ad-
justment according to the instructions on the screen.
[End]
You can exit the adjustment program by pressing the [Esc] key
on the keyboard of the computer.
on the keyboard of the computer.
Note:
When the display mode of the computer used is in the 65,000-
color mode, you might see different tones of each color of the
color pattern or a colored gray scale. This is a specification of the
input signal, not a trouble.
color mode, you might see different tones of each color of the
color pattern or a colored gray scale. This is a specification of the
input signal, not a trouble.
Menu 1 (ADJUSTMENT)
Menu 2 (GAIN CONTROL)
Menu 3 (WHITE BALANCE)
Menu 4 (MODE SELECT)
Menu is deleted.
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Closing MENU
MENU 1
MENU 2
MENU 3
MENU 4
MENU
MENU
MENU
MENU
MENU
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Resolution
Vertical
Frequency
Frequency
Horizontal
Frequency
Frequency
CLOCK 144
PHASE 10
SELECT
Display Frame
Black/White Alternate
Vertical Stripes
Color Pattern
Adjustment Pattern
3. Adjustment items
3-1. [Menu 1] ADJUSTMENT
Adjust the position and size of the screen according to the video
signal from the computer.
signal from the computer.
MANUAL: Select this option when you want to adjust manually.
AUTO:
[CLOCK], [PHASE], [H-POS], and [V-POS] are auto-
matically adjusted.
matically adjusted.
CLOCK
Use the or button to adjust the CLOCK so that you cannot see
vertical stripes-like noses in the pattern where white and black lines
alternate.
vertical stripes-like noses in the pattern where white and black lines
alternate.
PHASE
Use the or button to adjust the PHASE so that you can see a
clear white and black pattern on the screen with the horizontal stripes-
like noises minimized.
clear white and black pattern on the screen with the horizontal stripes-
like noises minimized.
H-POSITION
The screen moves to the right by pressing the button and to the left
by pressing the button. Adjust the H-POSITION so that you can see
both the frame lines at the right and left edges of the adjustment
pattern.
by pressing the button. Adjust the H-POSITION so that you can see
both the frame lines at the right and left edges of the adjustment
pattern.
V-POSITION
The screen moves upward by pressing the button and downward by
pressing the button. Adjust the V-POSITION so that you can see
both the frame lines at the top and bottom edges of the adjustment
pattern.
pressing the button. Adjust the V-POSITION so that you can see
both the frame lines at the top and bottom edges of the adjustment
pattern.
3-2. [Menu 2] GAIN CONTROL
Select this option to adjust the brightness and contrast of the screen.
The brightness and contrast of the screen are factory set for optimal
conditions.
However, the adjustment of brightness and contrast may be required
depending on the type of the computer connected. If such adjust-
ments are required, use the color pattern in the adjustment program.
conditions.
However, the adjustment of brightness and contrast may be required
depending on the type of the computer connected. If such adjust-
ments are required, use the color pattern in the adjustment program.
MANUAL: Select this option when you want to adjust manually.
AUTO:
When AUTO is selected by using the button, the
auto gain control function works to adjust the bright-
ness and contrast of the screen to the optimal condi-
tions. During the progress of the adjustment, the
screen looks dark, showing [ADJUSTING] onscreen.
auto gain control function works to adjust the bright-
ness and contrast of the screen to the optimal condi-
tions. During the progress of the adjustment, the
screen looks dark, showing [ADJUSTING] onscreen.
The auto gain control function adjusts the brightness and contrast
of the screen, using the brightest color of the image onscreen as a
reference. If you use this function without displaying the adjust-
ment pattern, a white color area of at least 5 mm x 5 mm is
required onscreen; otherwise, this function may not work. In such a
case, [OUT OF ADJUST] appears on the screen and the settings
remain unchanged.
of the screen, using the brightest color of the image onscreen as a
reference. If you use this function without displaying the adjust-
ment pattern, a white color area of at least 5 mm x 5 mm is
required onscreen; otherwise, this function may not work. In such a
case, [OUT OF ADJUST] appears on the screen and the settings
remain unchanged.
BRIGHT
Adjust the brightness of the entire screen using this option.
Press the button to brighten and the button to darken.
You can also adjust the brightness of the backlight, the light source
of the LCD. Refer to the paragraph of the backlight adjustment.
of the LCD. Refer to the paragraph of the backlight adjustment.
CONTRAST
Use the color pattern of the adjustment program so that all tones can
be displayed onscreen. Press button to make it stronger and the
button to make weaker.
be displayed onscreen. Press button to make it stronger and the
button to make weaker.
3-3. [Menu 3] WHITE BALANCE
Select this option to adjust the color tone of the screen.
The color tone is factory adjusted for the optimal condition and thus
there is no need to make this adjustment. However, you can adjust it
according to your preference.
there is no need to make this adjustment. However, you can adjust it
according to your preference.
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Vertical Flicker
Horizontal Flicker
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COOL
n
STD
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WARM
You can select the color tone of your preference from the five preset
modes.
modes.
COOL : Select this option to make the color tone more bluish than
the standard setting.
: The color tone becomes a little bluish than the standard
setting.
STD
: Standard setting
: The tone becomes a little reddish than the standard setting.
WARM : The color tone becomes more reddish than the standard
setting.
USER
R-CONTG, G-CONT, and B-CONT settings appears on the screen.
You can adjust the color tone more finely, using these options.
You can adjust the color tone more finely, using these options.
R-CONT: The button makes the screen reddish and the button
produces a blue-greenish screen.
G-CONT: The button makes the screen greenish and the button
makes it purplish.
B-CONT: The button make the screen bluish and the button
makes it yellowish.
If the screen is set for COLOR or WARM, you cannot display all
tones. If you want to display all the tones, set for STD.
tones. If you want to display all the tones, set for STD.
3-4. [Menu 4] MODE SELECT
This option is used to switch over the resolution modes in which the
monitor displays.
monitor displays.
INPUT (input mode):
Pressing the button switches the mode to [MAC] and pressing the
button switches to [VESA].
button switches to [VESA].
[VESA]
: VESA mode
[MAC]
: Power Macintosh mode
400 LINE (resolution):
Select this option to set the horizontal resolution of the 400-line
screen of the 9800 series and US TEXT machines.
screen of the 9800 series and US TEXT machines.
[640] : 640 x 400 mode (for 9800 series and others)
[720] : 720 x 400 mode (for US TEXT and others)
EXPAND (Enlarged screen)
With the display mode being lower than 1024 x 768, the display size
can be switched over using the and buttons.
can be switched over using the and buttons.
[OFF] :
The screen appears at the center of the display without
enlargement at the resolution of the display signal.
enlargement at the resolution of the display signal.
[ON] :
The display signal is expanded.
When the display mode is 1280 x 1024 and when the resolution
does supports the expanded display function (refer to the "Expan-
sion" in the Signal timing list.), the screen size remains unchanged
regardless of whether EXPAND is set for ON or OFF.
does supports the expanded display function (refer to the "Expan-
sion" in the Signal timing list.), the screen size remains unchanged
regardless of whether EXPAND is set for ON or OFF.
When EXPAND is set for ON, the screen is expanded according to
the resolution at the magnification of the number in the Signal
timing list. The screen may not be expanded to 1280 x 1024 in
some resolutions, with the areas around the screen showing black.
However, this is not a trouble.
the resolution at the magnification of the number in the Signal
timing list. The screen may not be expanded to 1280 x 1024 in
some resolutions, with the areas around the screen showing black.
However, this is not a trouble.
LEVEL (Expansion compensation level)
With EXPAND in ON, you can adjust the sharpness of an expanded
image by using the and buttons.
image by using the and buttons.
4. Adjusting the brightness of backlight
When the or button is pressed with no adjustment onscreen, the
BRIGHT menu appears on the screen, making it possible to adjust
the brightness of the backlight.
BRIGHT menu appears on the screen, making it possible to adjust
the brightness of the backlight.
Pressing the button for brightening and the button for darkening.
5. RESET
When both the MENU button and button are pressed simultane-
ously, the message [RESET] appears on the screen and the settings
in MENU 1 (CLOCK, PHASE, H-POS, V-POS) are returned to the
default values.
ously, the message [RESET] appears on the screen and the settings
in MENU 1 (CLOCK, PHASE, H-POS, V-POS) are returned to the
default values.
6. ALL RESET
When you want to return all the settings to default values, proceed as
follows:
follows:
Turn the monitor OFF.
Holding both the MENU button and the SELECT button down,
press the power supply button to turn the monitor ON.
press the power supply button to turn the monitor ON.
If the message [ALL RESET] appears on the screen, the reset is
over.
over.
While [ALL REST] is onscreen, any key won’t function.
7. 7 languages are available.
Select the language you want to use, from the adjustment menu.
Holding the and buttons down, turn the monitor ON to display the
7-language (German, English, Spanish, French, Italian, Dutch, Swed-
ish) selection menu.
7-language (German, English, Spanish, French, Italian, Dutch, Swed-
ish) selection menu.
8. Adjustment lock function
To protect the settings and adjusted values, set for adjust lock. When
the adjustment lock is used, no menu appears on the screen, thus
making it impossible to change the settings.
the adjustment lock is used, no menu appears on the screen, thus
making it impossible to change the settings.
Adjustment lock ON :
Holding the MENU button down, turn the
monitor ON. The screen appears, the ad-
justment lock is valid.
monitor ON. The screen appears, the ad-
justment lock is valid.
Adjustment lock OFF : Once turn the monitor OFF and then hold-
ing the MENU button down, turn the moni-
tor ON.
tor ON.
If the adjustment lock is ON, any button operation is inoperative
other than the power-on switch.
other than the power-on switch.
H
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