Lenovo Computer Monitor C72 User Manual

E-1  
FEDERAL COMMUNICATIONS  
COMMISSION(FCC) WARNING  
DOC NOTICE  
This product conforms to Canadian Class B emissions  
regulations.  
Instruction to Users  
Ce produit est conforme aux réglements d’émission  
Canadienne class B.  
This equipment has been tested and found to comply  
with the limits for a Class B digital device, pursuant  
to part 15 of the FCC rules. These limits are designed  
to provide reasonable protection against harmful in-  
terference in a residential installation. This equipment  
generates, uses and can radiate radio frequency energy  
and, if not installed and used in accordance with the  
instructions, may cause harmful interference to radio  
communications. However, there is no guarantee that  
interference will not occur in a particular installation.  
If this equipment does cause harmful interference to  
radio and television reception, which can be  
determined by turning the equipment off and on, the  
user is encouraged to try to correct the interference  
by one or more of the following measures.  
TCO95 NOTICE  
This product is delivered with a shielded cord set. In  
order to comply with TCOs requirements for low  
electromagnetic emission this cord set must be used,  
connected to a grounded outlet. If the cord set is  
replaced by another cord set we can not guarantee that  
the product still complies with TCOs requirements.  
-
-
Reorient or relocate the receiving antenna.  
Increase the separation between the equipment  
and the receiver.  
-
-
Connect the equipment into an outlet on a cir-  
cuit different from that to which the receiver is  
connected.  
Consult the dealer or an experienced radio/ TV  
technician for help.  
This equipment has been certified to comply with the  
limits for a Class B computing device, pursuant to  
part 15 of the FCC rules. Only peripherals (computer  
input / output devices, terminals, printers etc.) certified  
to comply to the Class B limits may be attached to  
this computer. Operation with non-certified  
peripherals is likely to result in interference to radio  
and TV reception.  
Remarks  
To meet FCC requirement, shielded cables are required  
to connect the device to a personal computer or other  
Class B certified device.  
Information to Users  
Any change or modifications expressly approved by  
the party responsible for compliance could void the  
user's authority to operate this equipment.  
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E-3  
INSTALL THE  
MONITOR  
POWER CORD  
Check first to make sure that the power cord you  
use is the correct type required for your area.  
To connect the tilt/swivel base to the monitor, align  
hooks with the sockets on bottom side of the  
monitor, and gently push the base towards the front  
of the monitor.  
This monitor has a universal power supply that  
allows operation in either 100/120V AC or 220/  
240V AC voltage area. No user-adjustment is re-  
quired.  
The 15-pin D-shell signal connector on the signal  
cable will connect easily to the video adapter  
output on your personal computer. Lock both  
screws on the connector to ensure a firm  
connection.  
First connect the power cord into your monitor’s  
power input socket, and then plug the other end  
into a 3-pin AC outlet. The power cord may be  
connected to either a wall socket or the power out-  
put socket on your PC, depending on the type of  
power cord supplied with your monitor.  
Turn the PC power switch ON. Then turn the  
monitor power switch ON, by pressing the switch  
inward. The green power indicator will light up.  
For units to be used at 120V AC:  
Use a UL Listed Cord Set consisting of a min.  
No. 18 AWG, Type SVT or SJT three-conductor  
a maximum of 15 ft. in length and a parallel blade,  
grounding type attachment plug rated 10A, 125V.  
Allow about 30 seconds for the CRT tube to warm  
up. Data will be displayed on the screen.  
If your display fails to function properly, please  
first refer to the section "Troubleshooting" in this  
manual.  
For units to be used at 240V AC (domestic use):  
Use a UL Listed Cord Set consisting of a min. No.  
18 AWG, Type SVT or SJT three-conductor cord  
a maximum of 15 ft. in length and a tandem blade,  
grounding type attachment plug rated 10A, 250V.  
For units to be used at 220/240V AC (outside of  
U.S.):  
Use a Cord Set consisting of a min. No.18 AWG  
cord and grounding type attachment plug rated  
15A, 250V. The cord set should have the appro-  
priate safety approvals for the country in which  
the equipment will be installed and marked HAR.  
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E-4  
USER CONTROLS AND INDICATORS  
a
b
c
1
2
a. Displays menu & exits menu  
b. Scrolls through menu to choose an icon  
for adjustment /  
1. Power LED  
2. Power ON/OFF switch  
Adjusts level of selected icon  
c. Confirms menu selection  
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E-5  
USING THE ON-SCREEN MENU  
1
1) Menu screen-press the  
button to display the menu below and exit menus  
Select mark  
Press the  
button to move the selection  
mark to the desired location.  
Adjustment icons  
2
When the button is pressed.  
1 : CONTRAST : 2  
The selected adjustment screen appears.  
The item presently  
being adjusted is  
shown.  
CONTRAST  
BRIGHTNESS  
V.POSITION  
COLOR  
H.SIZE  
H.POSITION  
TRAPEZOID  
DISP.FREQ.  
V.MOIRE  
V.SIZE  
V.PINCUSHION  
LANGUAGE  
H.MOIRE  
ROTATION  
DEGAUSS  
RECALL  
1 :  
CONTRAST  
: 2  
2) Adjustment screen (example: horizontal position adjustment)  
Name of adjustment screen  
Adjustment icon  
The adjustment level is shown by both a number  
and a bar. It can be varied with the front  
buttons.  
H.POSITION  
50  
/
1
:
:
2
When the  
size adjustment screen appears.  
button is pressed, the horizontal  
2
End Button  
When the  
the adjustment level is stored,  
the adjustment screen is ended  
and the menu screen returns.  
button is pressed,  
1
On the adjustment screen where these two adjustment  
icons appear, it is possible to switch between the two  
screens by pressing the button.  
2
NOTE: The amount of adjustment depends upon how long you depress the adjustment button. You may have to  
tap the button to obtain the desired results.  
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E-6  
VERTICAL SIZE adjustment  
Fills the viewable area vertically.  
INDIVIDUAL  
ADJUSTMENT  
CONTRAST adjustment  
Adjust the screen contrast to match your  
personal perference.  
Press the button to make the image smaller,  
or press the  
button to make it larger. Press  
the 2 key toggles between VERTICAL SIZE  
and VERTICAL POSITION.  
Press the  
press the button to increase it.  
Direct operation: You can access the  
button to decrease contrast and  
VERTICAL POSITION adjustment  
Shifts the image on the screen vertically.  
Press the  
button to move it downward, or  
CONTRAST adjustment  
screen by pressing the or  
before entering the menu  
screen.  
press the button to move it upward.  
Press the key toggles between VERTICAL  
2
SIZE and VERTICAL POSITION  
2
Press the key toggles between CONTRAST  
and BRIGHTNESS.  
VERTICAL PINCUSHION adjustment  
The image can be corrected for barrel  
distortion.  
BRIGHTNESS adjustment  
Adjusts the brightness to get the desired  
background level.  
Press the button or the button to eliminate  
curved vertical lines.  
Press the key toggles between VERTICAL  
2
PINCUSHION and TRAPEZOIDAL  
correction.  
Press the  
button to make the background  
lighter, the button to make it darker.  
2
Press the key toggles between CONTRAST  
and BRIGHTNESS.  
TRAPEZOID adjustment  
The image can be corrected for the trapezoidal  
distortion.  
HORIZONTAL SIZE adjustment  
Fills the viewable area horizontally.  
Press the  
button to narrow the top edge, or  
Press the button to make the image narrower,  
or press the button to make it wider.  
press the button to make the top edge wider.  
2
Press the key toggles between VERTICAL  
Press the  
2
key toggles between  
PINCUSHION and TRAPEZOID correction.  
HORIZONTAL SIZE and HORIZONTAL  
POSITION.  
ROTATION adjustment  
The image can be corrected for tilt picture.  
Press the button to tilt the image to the left,  
HORIZONTAL POSITION adjustment  
Shifts the image on the screen horizontally.  
Press the button to move the screen image to  
the left, or press the button to move it to the  
right.  
or press the  
right.  
button to tilt the image to the  
2
Press the  
key toggles between  
HORIZONTAL SIZE and HORIZONTAL  
POSITION.  
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E-7  
COLOR selection  
MANUAL DEGAUSSING  
After moving the selector to the degauss icon,  
press the button. The degaussing action  
takes place a few seconds later.  
Note: A sharp snap noise may be heard when  
degaussing occurs. This is normal.  
The white in the image can be adjusted.  
1) Use the  
button to select: (1)9300OK,  
2
(2)6550OK or (3)the user’s preferred color.  
2) If the (3):the user’s color is selected, “2”  
appears in the lower right of the On-Screen  
Menu.  
Press the front 2 button to display the USER  
COLOR adjustment screen.  
MEMORY RECALL  
It is possible to restore adjustments to the  
original factory settings. If the monitor is  
operating in a user defined mode, this control  
has no effect.  
USER COLOR  
The white in the video image can be adjusted  
to the user’s preferred color.  
HORIZONTAL MOIRE  
Reduce the dark wavy line Moire pattern on  
the screen.  
1) Use the  
(blue).  
2) Use the  
desired.  
button to select R (red) or B  
button to adjust the color as  
2
Press the  
or  
button to minimize the  
*The GREEN color is fixed and cannot be  
adjusted.  
horizontal moire image on the screen.  
IMPORTANT-Memory recall of the user’s  
color is not possible, so take note of the initial  
setting before adjusting.  
VERTICAL MOIRE  
Reduce the dark wavy line Moire pattern on  
the screen.  
When the monitor is turned OFF, user color  
keeps the last adjustment.  
Press the  
vertical moire image on the screen.  
or  
button to minimize the  
LANGUAGE selection  
The language of the On-Screen Menu can be  
selected among English, French, German,  
Italian and Spanish. Select with the  
buttons.  
DISP. FREQ (Input frequency display)  
This displays the input synchronization signal  
frequency.  
It identifies the horizontal and vertical  
frequency sent to the monitor from the video  
card currently in use.  
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E-8  
TROUBLESHOOTING  
SERVICING  
If your monitor fails to operate functionally, it may  
be possible to correct the problem by making simple  
checks as follows:  
Refer all servicing to qualified service personnel.  
Serious shock hazards exist within the covers  
of this monitor.  
Do not open the covers under any  
circumstances- there are no serviceable parts  
inside.  
Problem  
Check & Adjust  
Monitor power switch,  
Blank screen  
(* note.)  
power cord, signal cable,  
or connector  
PC power switch  
Brightness & contrast  
controls  
SIGNAL CONNECTOR  
INFORMATION  
Display position  
off-center  
Vertical centering &  
horizontal phase controls  
5
1
Display too small  
or too large  
Vertical & horizontal size  
controls  
Display too bright  
or too dim  
Brightness & contrast  
controls  
Refer to the operation instructions for your computer/  
video adapter to ensure that you have the correct signal  
output source for the monitor. Ensure that the switches  
on the video adapter are set correctly for operation  
with this monitor.  
15  
Pin  
Function  
Pin  
Function  
1
Red signal  
9
NC  
If the above steps fail to correct the problem contact  
your dealer for servicing by qualified service  
personnel.  
2
3
4
Green signal 10  
Blue signal 11  
Digital ground  
Ground  
Ground  
*
12  
13  
SDA (DDC1/DDC2B)  
Please remember that the monitor should be returned  
for servicing together with the power cord.  
Horizontal  
Synchronization  
5
6
* Note: You can easily distinguish the problem is on  
the monitor or on the computer by using the  
monitor’s built-in selftest function.  
Vertical synchronization  
& VCLK (DDC1)  
Red return 14  
Green  
15  
With the monitor power ON, disconnect the  
signal cable from monitor. If you see a “NO  
SIGNAL” image on the screen, (shown  
below) the monitor is function properly, and  
the problem is at PC side, or signal cable.  
7
8
SCL (DDC 2B)  
return  
Blue return  
*Note: This pin is used for self test detection; at  
PC side, this pin has to be connected to  
ground.  
NO SIGNAL  
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E-9  
TECHNICAL SPECIFICATIONS  
1 7 " vis ua l d ia go na l  
Vie w a b le s c r e e n s ize  
1 5 . 8 "  
P o we r I n p u t  
S c r e e n S i ze  
Vo l t a g e  
F r e q u e n c y  
1 0 0 t o 2 4 0 V A C  
5 0  
-
6 0 H z  
A nt i- G la r e C o a t ing * *  
C u r r e n t  
R a t i n g  
D o t P i t c h  
0 . 2 7 mm  
2 . 0  
1 2 0  
A
D i s p l a y A r e a  
P o we r  
C o n s u m p t i o n  
2 2 5  
x
3 0 0 ( mm) , t yp ic a l  
W
( M A X . )  
4 1 4 4 2 0  
( H  
x
W )  
D i m e n s i o n  
4 11  
( mm)  
X
X
D i s p l a y C o l o r s  
I nfinit e  
( W  
x
H
x
D )  
M a x .  
R e s o l u t i o n  
1 2 8 0 D o t s  
x
1 0 2 4 L ine s  
We i g h t  
1 6 . 5 k g  
A ll gr a p hic mo d e s w it h  
ho r izo nt a l fr e q ue nc ie s  
b e t w e e n 3 0 K H z t o 6 9  
K H z  
O p e r a t i n g  
T e m p e r a t u r e  
C o m p a t i b i l i t y  
5
0
C
C
t o 3 5  
t o 6 5  
C
S y n c h r o n i za t i o n  
H o r i zo n t a l :  
Ve r t i c a l :  
S t o r a g e  
T e m p e r a t u r e  
3 0 t o 6 9 K H z  
5 5 t o 1 2 0 H z  
C
2 0 % t o 8 0 %  
( no n- c o nd e ns ing)  
B a n d wi d t h  
8 6 M H z  
H u m i d i t y  
A l t i t u d e  
Vid e o R G B A na lo g  
S ync . T T L S e p a r a t e  
I n p u t S i g n a l  
S i g n a l C a b l e  
U p t o 7 0 0 0 ft  
M P R I I  
T C O  
/
M P R 1 9 9 0 :1 0 ,  
T C O O p t io na l  
1 5 - p in D - s ub c o nne c t o r  
* Specifications are subject to change without notice.  
** TCO version has a different surface treatment.  
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E-10  
PRESET MODES  
Resolution  
(H x V)  
H. Freq. V. Freq.  
Resolution  
(H x V)  
H. Freq. V. Freq.  
Mode  
Mode  
(KHz)  
31.4  
31.4  
35.0  
37.8  
37.5  
43.3  
46.8  
(Hz)  
70  
60  
66  
60  
75  
85  
75  
(KHz)  
48.3  
53.6  
56.4  
60.0  
64.3  
68.6  
(Hz)  
1
2
3
4
5
6
7
720 x 400  
640 x 480  
640 x 480  
800 x 600  
640 x 480  
640 x 480  
800 x 600  
8
1024 x 768  
800 x 600  
60  
9
85  
10  
11  
12  
13  
1024 x 768  
1024 x 768  
1280 x 1024  
1024 x 768  
70  
75  
60  
85  
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