Lenovo Computer Monitor L152 User Manual

Note: specifications are subject to change without notice or obligation.  
CONTENT  
F.C.C. statement  
Important safeguards  
Chapter 1 Introduction  
1.1 General Information..................................................................  
1.2 Features.....................................................................................  
1.3 Checking List.............................................................................  
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1
1
Chapter 2 Installation  
2.1 Install and uninstall the pedestal ..............................................  
2.2 Connect your monitor to a computer.........................................  
2
2
Chapter 3 Overview of your monitor  
3.1 Control........................................................................................  
3
Chapter 4 Operation Direct-Access Features  
4.1 Switch the power ON/OFF ..............................................................  
4
4.2 Power indicator..........................................................................  
4
4.3 Volume (only for monitor with speaker function).....................  
4
4.4 Menu features............................................................................  
4
4.5 OSD menu.................................................................................  
5
4.6 Preset modes timing chart.........................................................  
7
4.7 Plug and play..............................................................................  
7
Chapter 5 Technical information  
5.1 Signal Connector Pin Assignment.............................................  
5.2 Visual Inspection. .....................................................................  
5.3 Troubleshooting.........................................................................  
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IMPORTANT SAFEGUARDS  
Warnings:  
1. Read all of these instructions Save these instructions for later use, Please.  
2. Unplug this monitor from the wall outlet before cleaning. Do not use liquid cleaners or aerosol cleaners. Use a damp cloth for  
cleaning.  
3. Do not use attachments not recommended by the monitor manufacturer as they may cause hazards.  
4. Do not use this monitor near water. For example near a bathtub, washbowl, kitchen sink, or laundry tub, in a wet basement, or  
near a swimming pool, etc...  
5. Do not place this monitor on an unstable cart, stand, or table. The monitor may fall, causing serious injury to a child or adult, and  
serious damage to the appliance. Use only with a cart or stand recommended by the manufacturer or sold with monitor. Wall or  
shelf mounting should follow the manufacturer's instructions, and should use a mounting kit approved by the manufacturer.  
6. Slots and openings in the cabinet and the back or bottom are provided for ventilation, and to insure reliable operation of the  
television receiver and to protect it from overheating, these openings must not be blocked or covered. The openings should  
never be blocked by placing the monitor on a bed, sofa, rug, or other similar surface. This monitor should never be placed near  
or over a radiator or heat register. This monitor should not be placed in built-in installation such as a bookcase unless proper  
ventilation is provided.  
7. This monitor should be operated only from the type of power source indicated on the marking label. If you are not sure of the  
type of power supplied in your home, consult your monitor dealer or local power company.  
8. This monitor is equipped with a three-wire grounding type plug, a plug having a third (grounding) pin. This plug will only fit into  
grounding-type power outlet. This is a safety feature. If you are unable to insert the plug into the outlet. contact your electrician  
to replace your obsolete outlet. Do not defeat the safety purpose of the grounding-type plug.  
9. Do not allow anything to rest on the power cord. Do not locate this monitor where the cord will be abused by persons working  
on it.  
10.Follow all warnings and instructions marked on the monitor.  
11.For added protection for this monitor, when it is left unattended and unused for long periods of time, unplug it from the wall  
outlet. This will prevent damage to the monitor due to power-line surges.  
12.Do not overload wall outlets and extension cords as this can result into fire or electric shock.  
13.Never push objects of any kind into this monitor through cabinet slots as they may touch dangerous voltage points or short out  
parts that could result in a fire or electric shock. Never spill liquid of any kind on the monitor.  
14.Do not attempt to service this monitor yourself since opening or removing covers may expose you to dangerous voltage or  
other hazards. Refer all servicing to qualified service personnel.  
15.Unplug this monitor from the wall outlet and refer servicing to qualified service personnel under the following conditions:  
a. When the power cord or plug is damaged or frayed.  
b. If liquid has been spilled into the monitor.  
c. If the monitor has been exposed to rain or water.  
d. If the monitor does not operate normally by following the operating instructions. Adjust only those controls that are covered  
by the operating instructions as improper adjustment of other controls, may result in damage and will often require extensive  
work by a qualified technician to restore the monitor to normal operation.  
e. If the monitor has been dropped or the cabinet has been damaged.  
f. When the monitor exhibits a distinct change in performance this indicated a need for service.  
16. When replacement parts are required, be sure the service technician has used replacement parts specified by the manufacturer  
that have the same characteristics as the original parts. Unauthorized substitutions may result in fire, electric shock, or other  
hazards.  
17.Upon completion of any service or repairs to this monitor, ask the service technician to perform routine safety checks to  
determine that the monitor is in safe operating condition.  
18.The socket outlet shall be near the equipment and shall be easily accessible.  
19.The power supply cord is used as the main disconnect device.  
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Chapter 1  
Introduction  
1.1 General Information  
This monitor is a high-performance intelligent multi-scan TFT LCD color  
monitor.  
User friendly interface --- the easy and precise OSD control of multi- key button.  
Brief appearance --- elegant and compact housing.  
Footprint of all round tilting range --- employing sectional positioning ,well  
Balanced in adjustment.  
Analog input, plug and play facilities --- to accept RGB signal, with modulated  
Frame rate control allowing over 20 different input formats.  
1.2 Features  
1. Microprocessor based with OSD (On Screen Display) control.  
2. Compatible with standard VGA ,extended VGA,superVGA, XGA  
modes, as well as VESA resolution standards.  
3. Universal power supply. (100-240 Vac, 50/60Hz )  
4. Microsoft windows 95/98/2000/ME/XP compatible & VESA Display Data  
channel (DDC)1/2B compatible.  
1.3 Checking List  
Please make sure the following items are included with your LCD monitor:  
Your monitor  
User Guide  
CD  
AC power cord  
Signal cable  
If any of these items are missing, please contact with your dealer for  
Technical support and customer service.  
Note:  
Be sure to save original box and all packing material for transport in future if the  
Monitor need .  
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Chapter 2  
Installation  
2.1 Install and uninstall the pedestal  
To attach the base to your monitor, please following the steps for installation of the  
pedestal as below:  
step 1  
step 2  
step 3  
2.2 Connect your monitor to computer  
2.2.1 Turn off your computer and unplug its power cable.  
2.2.2 Connect the signal cable to the video port on the back of your computer.  
2.2.3 Connect the power cable for your monitor. ( to AC power jack)  
2.2.4 Connect one end of the audio cable on the back of the connector to the sound  
card of the computer output, (Only for monitor with speaker function)  
2.2.5 Plug the computer and monitor power cables into a nearby outlet.  
2.2.6 Turn your computer and monitor on, if your monitor display an image, you  
have successfully installed the monitor. If the monitor does not display an  
Image, check all the connections.  
AC Power cable  
(2)  
(1) VGA Signal Cable  
(3) Audio in  
Note: (3) only for monitor with speaker function  
Connecting the monitor to the computer and the power supply  
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Chapter 3  
Overview of your monitor  
3.1 CONTROL  
1.Select Button  
For VGA mode  
(1) To choose which function you need. Youmay choose  
counterclockwise or  
"
"
"
"
Clockwise.  
(2) Executing it directly lowers or raises the volume.  
2. MENU Button  
(1) Press it to enter into MENU status.  
(2) Under OSD mode, press it to enter.  
3.Power indicator  
Indicates the operating state.  
(
)
4.Power Button  
Use this button to turn the monitor on and off.  
5.AUTO Button  
Press it to perform the auto-adjustment of the screen.  
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Chapter 4  
OPERATION Direct - Access Features  
4.1 SWITCHING THE MONITOR ON/OFF  
This ON/OFF button is used for switching the monitor on and off.  
Note: The ON/OFF switch does not disconnect the device from the  
mains voltage. To completely disconnect the mains voltage.  
Please remove the power plug from the socket.  
4.2 POWER INDICATOR  
This indicator lights up green or blue when the monitor operates normally.  
If the monitor is in power saving mode, this indicator change to orange.  
when monitor is turn off, this indicator change the color to dark.  
4.3 VOLUME (only for monitor with speaker function)  
This feature adjust the DOWN button to decrease the volume and  
UP button to increase the volume.  
Important information on audio playback  
To achieve optimum sound quality from the monitor speakers,  
the audio cable should be connected to the Line-Out socket  
(headphone socket) of the computer. If you connect the audio cable  
to the Speaker-Out socket (soundcard) of the computer, Please set  
the volume under Windows to range between 20% - 40% of the  
maximum value to achieve optimum sound quality.  
4.4 MENU FEATURES  
The following features can all be accessed by using your monitor's on  
screen menu system. Once are finished. Making adjustments to a feature,  
selecting the exit icon to turn off the menu.  
Please follow the procedure of selection and adjust an item using the OSD  
system as below steps for main functions adjustment.  
Step 1: Press the MENU button to activate the OSD menu.  
The main menu appears on the screen with icons for the  
setting functions.  
"
"
Step 2: If necessary, use the "  
other icon.  
" or  
button to mark an  
Step 3: Press the MENU button to activate the highlighted icon.  
"
"
"
"
Step 4: Use the  
Step 5: Select the EXIT symbol to exit the OSD menu.  
or  
button to make the desired setting.  
Step 6: Repeat step 2 through 5 to make further adjustments.  
All changes are stored immediately  
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Chapter 4  
OPERATION Direct - Access Features  
4.5 OSD MENU  
1. Main menu  
OSD main menu of controls gives you an overview of the selection of controls  
available. When you want to make adjustment of the screen image, press and  
release button Menu  
2. OSD Adjustment  
You can choose where you would like OSD image to appear on your screen.  
H-Position :  
To move the OSD image horizontally left or right.  
V-Position :  
To move the OSD image vertically up or down.  
Exit :  
To exit the sub menu  
or  
3. Language  
You can choose one of the muti- languages you need.  
4. Reset  
Reset the currently highlighted control to the factory setting. User must be using  
factory preset video mode to use this function.  
5. Auto  
Auto adjust display mode to its utmost performance according to VGA setting.  
In the event of the display image needs further adjustment .  
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Chapter 4  
OPERATION Direct - Access Features  
or  
6. Color Select  
Color Select Menu  
COOL  
WARM  
Select user mode  
or  
User color you can adjust to individual color gum intensity by yourself. Increase or  
decrease red. green or blue depending upon which color is selected .  
Cool  
This control adjusts the color temperature of the screen image. This item are preset  
by factory , you can not adjust these setting. The performance is bluer and brighter.  
Warm  
The performance is redder and closer to paper white.  
Native (Optional):  
To give the white color a natural tint.  
7. Phase  
or  
To improve focus clarity an image stability.  
8. H. Size  
To increase or decrease the horizontal size of image.  
9. V. Position  
To move the picture image vertically up or down.  
10. H. Position  
To move the picture image horizontally left or right.  
11. Contrast  
Adjust the image brightness in relation to the background.  
12. Brightness  
Adjust the overall image and background screen brightness.  
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Chapter 4  
OPERATION Direct - Access Features  
4.6 Preset Modes Timing Chart  
Vertical  
Freq.(Hz)  
Item  
Addressability  
1
2
3
4
5
6
x
640 480  
x
640 480  
60  
66  
72  
75  
70  
70  
60  
72  
x
640 480  
x
640 480  
x
640 350  
x
720 400  
x
800 600  
7
x
800 600  
8
x
9
800 600  
75  
60  
x
1024 768  
10  
11  
12  
x
1024 768  
70  
75  
x
1024 768  
15": 1-12  
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Chapter 5  
Technical Information  
5.1 Signal connector pin assignment  
PIN Signal (D-sub) PIN Signal (D-sub)  
+5V Input  
No onncin  
1
2
3
4
5
6
7
8
Red  
Green  
Blue  
Ground  
Self Tes t  
Red Ground  
Green Ground  
Blue Ground  
9
10 Ground  
11 Ground  
12 SDA (FOR DDC)  
13 H. Sync  
14 V. Sync  
15 SCL (FOR DDC)  
5
1
6
10  
15  
11  
15-Pin mini D-Type male connector  
5.2 Visual Inspection  
Permanently unlit or lit pixels  
The standard of production techniques today cannot guarantee an absolutely fault-  
free screen display.A few isolated constant lit or unlit pixels may be present. The  
maximum permitted number of pixels faults is stipulated in the stringent  
international standard ISO 13406-2 (Class II).  
Example: a 17" flat-screen monitor with a resolution of 1280 x 1024 has 1280 x 1024  
= 1310720 pixels. Each pixel consists of three subpixels (red, green and blue),  
so there are about 4 million dots in total.  
According to ISO 13406-2 (Class II), a maximum of 6 pixels and 7 subpixels may  
be defective, i. e. a total of 25 faulted dots. This corresponds to approx. 0.002 % of  
the entire screen surface.  
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Chapter 5  
Technical Information  
5.3 Trouble shooting  
Before calling for service , check the information in this section to see if you  
can remedy any problems by yourself. If you need assistance, please call the  
dealer where you purchased the LCD monitor.  
There is no SCREEN image  
Please check these items:  
The power cord is securely connected the monitor, the adaptor, and  
the wall outlet.  
Check the signal cable connection between the monitor and the  
computer.  
Adjust the brightness and contrast controls.  
Monitor in power saving mode.  
Display image is too large or small  
Use the OSD controls to adjust Auto Setup.  
The colors are discord  
Signal cable properly connected?  
Use OSD controls to adjust the color control setting.  
The image is too light or too dark  
Use OSD controls to adjust the brightness and contrast.  
(only for monitor with speaker function)  
There is no sound or sound is low  
Check the audio cable connector.  
Make sure the computer sound program is working.  
Change the volume on sound setting. Adjust your sound card or computer  
volume setting.  
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