Lenovo L2060WA User Manual

20.0” LCD Color Monitor Lenovo L2060wA

Service

Table Of Contents

Description

Table Of Contents.......……..............................…........1

Revision List.…...................................................……......2

Important Safety Notice.…….........................……......3

1.Monitor Specification..............................………........4

2.LCD Monitor Description…………………………….......5

3.Operation Instruction……………...............……...........6

3.1.General Instructions………..........................…...........6

3.2.Control Button…………….…..............……...............6

3.3.Adjusting the Picture...........................…............7

4.Input/Output Specification............……………............10

4.1.Input Signal Connector............………….................10

4.2.Factory Preset Display Modes.........................11

4.3.Panel Specification.....……...……………..................12

N

5.Block Diagram………...................…………................17

5.1.Software Flow Chart…………………………...........17

Page Description Page

5.2.Electrical Block Diagram……..……………..….......19

6.Schematic…………………...................................…21

6.1.Main Board.................................................21

6.2.Power Board....……….…....................................26

6.3.Key Board....……….…......................................28

7.PCB Layout..……………….......................................29

7.1.Main Board……………..........................................29

7.2.Power Board…......................................................32

7.3.Key Board…………...…….....................................35

8.Maintainability…………….........................................36

8.1.Equipments and Tools Requirement......................36

8.2.Trouble Shooting…………................................37

9.White-Balance Luminance Adjustment….……….....43

10.Monitor Exploded View…………...…………...........45

11.BOM List….............................................................46

SAFETY NOTICE

ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE

CHASSIS AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING

ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.

CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING

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20.0” LCD Color Monitor Lenovo L2060wA

Revision List

Version Release Date Revision History TPV Model Name

TARSRJNY3WG1HNJ

A00 Aug.15.2009 Initial release

A01 Sep.03.2009 Add new model

A02 Sep.11.2009 Add new model

TARGRJNY3WG1HNJ

TARMRJNY3WG1HNJ

TARSRJNY3WG2HNJ

TARGRJNY3WG2HNJ

TARSRJNM3WG2HNJ

TARGRJNK3WG2HNJ

TARMRJNM3WG2HNJ

TARSRJNY3WG2DNJ

TARSRJNC3WG2DNJ

TARGRJNM3WG2HNJ

TARSRJNC3WG2DNJ

TARGRJNM3WG2HNJ

TARMRJNC3WG2DNJ

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20.0” LCD Color Monitor Lenovo L2060wA

Important Safety Notice

Proper service and repair is important to the safe, reliable operation of all AOC Company Equipment. The service

procedures recommended by AOC and described in this service manual are effective methods of performing service

operations. Some of these service operations require the use of tools specially designed for the purpose. The

special tools should be used when and as recommended.

It is important to note that this manual contains various CAUTIONS and NOTICES which should be carefully read in

order to minimize the risk of personal injury to service personnel. The possibility exists that improper service

methods may damage the equipment. It is also important to understand that these CAUTIONS and NOTICES ARE

NOT EXHAUSTIVE. AOC could not possibly know, evaluate and advise the service trade of all conceivable ways in

which service might be done or of the possible hazardous consequences of each way. Consequently, AOC has not

undertaken any such broad evaluation. Accordingly, a servicer who uses a service procedure or tool which is not

recommended by AOC must first satisfy himself thoroughly that neither his safety nor the safe operation of the

equipment will be jeopardized by the service method selected.

Hereafter throughout this manual, AOC Company will be referred to as AOC.

WARNING

Use of substitute replacement parts, which do not have the same, specified safety characteristics may create shock,

fire, or other hazards.

Under no circumstances should the original design be modified or altered without written permission from AOC.

AOC assumes no liability, express or implied, arising out of any unauthorized modification of design.

Servicer assumes all liability.

FOR PRODUCTS CONTAINING LASER:

DANGER-Invisible laser radiation when open AVOID DIRECT EXPOSURE TO BEAM.

CAUTION-Use of controls or adjustments or performance of procedures other than those specified herein may

result in hazardous radiation exposure.

CAUTION -The use of optical instruments with this product will increase eye hazard.

TO ENSURE THE CONTINUED RELIABILITY OF THIS PRODUCT, USE ONLY ORIGINAL MANUFACTURER'S

REPLACEMENT PARTS, WHICH ARE LISTED WITH THEIR PART NUMBERS IN THE PARTS LIST SECTION OF

THIS SERVICE MANUAL.

Take care during handling the LCD module with backlight unit

-Must mount the module using mounting holes arranged in four corners.

-Do not press on the panel, edge of the frame strongly or electric shock as this will result in damage to the screen.

-Do not scratch or press on the panel with any sharp objects, such as pencil or pen as this may result in damage to

the panel.

-Protect the module from the ESD as it may damage the electronic circuit (C-MOS).

-Make certain that treatment person’s body is grounded through wristband.

-Do not leave the module in high temperature and in areas of high humidity for a long time.

-Avoid contact with water as it may a short circuit within the module.

-If the surface of panel becomes dirty, please wipe it off with a soft material. (Cleaning with a dirty or rough cloth may

damage the panel.)

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20.0” LCD Color Monitor Lenovo L2060wA

1. Monitor Specifications

Driving system TFT Color LCD

LCD Panel

Input

Display Colors 16.7M Colors

Dot Clock 165MHz

Max. Resolution 1600 x 900@60Hz

Plug & Play VESA DDC2B DDC/CI

Power Consumption

Active Display Area 442.8 (W)×249.075(H)mm

Pixel Pitch 0.2768 mm×0.2768mm

R,G,B Analog Interface，75ohm,0.7V

Video

DVI Digital Interface

Separate Sync. H/V TTL

H-Frequency 46kHz –70kHz

V-Frequency 50Hz-76Hz

ON Mode <37W(with soundbar), <25W(without soundbar)

Power Saving Mode <1W

Switch OFF

<0.5W

D-Sub 15pin

Input Connector

DVI 24pin

Analog:0.7Vp-p(standard), 75 OHM, Positive

Input Video Signal

Digital signal

Maximum Screen Size

Power Source 90~264VAC,47~63Hz, 1.5A Max supply current

Environmental Considerations

Dimensions(including stand) 476.0(W)x370.6(H)x170.2 (D)mm

Weight (N. W.): 4.76kg(10.48 lb)

Safety

Horizontal : 442.8mm Vertical : 249.1mm

Operating Temp: 0° to 40°C Storage Temp.: -20° to 60°C Operating Humidity : 8% to 80%

UL+CSA/cUL FCC B CE mark CCC IEC950CB etc.

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20.0” LCD Color Monitor Lenovo L2060wA

2. LCD Monitor Description

The LCD MONITOR will contain a main board, a power board and a key board which house the flat panel control

logic, brightness control logic and DDC.

The power board will provide AC to DC/DC to AC Inverter voltage to drive the backlight of panel and the main board

chips each DC voltage.

Monitor Block Diagram

2-CCFL Backlight

Panel LVDS

DC-AC inverter

AC-DC

(5V/12V)

Power Board

AC supply 90V-264V

Key board

Main Board

Computer VGA

RS232 Connector For white balance adjustment in factory mode

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20.0” LCD Color Monitor Lenovo L2060wA

3. Operating Instructions

3.1 General Instructions

Press the power button to turn the monitor on or off. The control buttons are located on the right side of the

monitor.

By changing these settings, the picture can be adjusted to your personal preferences.

The power cord should be connected.

-

Connect the video cable from the monitor to the video card.

-

Press the power button to turn on the monitor, the power indicator will light up.

-

3.2 Control Buttons

Icon Control Description

1

Power Key Power ON/OFF,and power indicator(Blue and Orange).

2

3

Input change Switches the video input source.DVI/D-SUB

DDC-CI Pressed till 10 seconds, will enable/disable the DDC/CI.

Exit Exit current OSD return to last level.

Auto Adjustment If there is no any OSD, it is auto configuration.

Decrease OSD, it will decrease current value of bar, or move to last item of menu.

4

NovoVision If there is no any OSD,Direct access to NovoVision.

Increase OSD, it will increase current value of bar, or move to next item of menu.

5

Menu

/Enter/OK key

Active main menu while no OSD display,enter next level on main menu or

sub menu status, or enter last level on adjustment bar.Continued pressing

10 seconds will lock menu or un-lock menu.

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20.0” LCD Color Monitor Lenovo L2060wA

3.3 Adjusting the Picture

To use the controls:

1. Press in the bottom right of monitor to power on,and then the blue indicator become bright.

Press

2.

3.

Use

sub-menu,you can move between options using or ,then press to select that function.Use or

to make adjustments.Press

Press

4.

5. Press and hold for 10 seconds to lock the OSD.This will prevent accidental adjustments to the

OSD.Press and hold for 10 seconds to unlock the OSD and allow adjustments to OSD.

6. Enables DDC/CI by default.Use OSD Exit Key,Press and hold the

disable/enable DDC/CI function.The words “DDC/CI disable” shows on the screen.

OSD functions

OSD Icon on Main

Menu

Brightness/Contrast

Image Position

Image Setup

to open the main OSD menu.

or to move among the icons.Select an icon and press to access that function. If there is a

to save.

to move backwards through the sub-menus and exit from the OSD.

buttons for 10 seconds to

Controls and

Submenu Description

Brightness

Contrast

Horizontal Position

Vertical Position

Automatic

Adjusts overall brightness.

Adjusts difference between light and dark areas.

Moves image left or right.

Moves image up or down.

Automatically optimizes image (size,position,phase,and clock).

Manually optimizes the image.

adjustments

(Analog)

Same as analog

Controls

locked-not

required for

digital input

z Clock

Manual

z z

Phase Save

Controls and

adjustments

(Digital)

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20.0” LCD Color Monitor Lenovo L2060wA

Image Properties

Color

Scaling

Input video signal

Adjusts intensity of red, green and blue. Preset mode

Default

z z

Reddish

z

Bluish

Custom

Red: Increases or decreases the

z

saturation of ‘red’ in the image. Green: Increases or decreases the

z

saturation of ‘green’ in the image.

z

Blue: Increases or decreases the saturation of ‘blue’ in the image.

z

Save: Saves the custom color choices.

Off native(1:1)

z

On expand the image to full screen

z

This monitor can accept video signals through two different connectors.Most desktop computers use a D-SUB connector.Select digital among OSD Controls when you use DVI connector.

z

Selects D-SUB (Analog)

z

Selects DVI-Digital

Same as analog

Options

Default

Custom

Novo vision

Information

Language

Menu Position

Factory Reset

For special task to optimize display

Shows resolution, refresh rate, and product details.

This section lists the languages supported by your monitor.

Menu position adjusts menu location on the screen.

Default returns the menu position to the default settings.

z

Horizontal: Changes the horizontal position of the OSD.

Vertical: Changes the vertical position of

z

the OSD.

z

Save

z

Cancel

z

Resets

Resets monitor to original factory settings.

Same as analog

Accessibility

Controls button and menu settings for accessibility preferences.

Button repeat rate: Select or

to Change. Off

z z

8

Default

z Slow

20.0” LCD Color Monitor Lenovo L2060wA

the OSD will remain active after the last time a button is pressed.

Save user adjustment and OSD disappear.

Exit

OSD Value on Factory Mode

Brightness Contrast ratio color temperature

Text mode 80 50 7200k

Internet mode 90 50 6500k

Video mode 100 50 9300k

Split Demo 100 50 Left NOVO vision disable/right

7200k

Text mode is factory mode.

Mode value

Colour Temperature

Horizontal Position of Screen 50

Vertical Position of Screen 50

Phase no definition temp

7200K（Default）

Clock no definition temp.

DCR off

OSD Position

OSD Time 10 seconds

OSD Language Chinese(China Sim) /English(out of China)

Hor：50，Ver：50

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20.0” LCD Color Monitor Lenovo L2060wA

4. Input/Output Specification

4.1 Input Signal Connector

15

6

11 15

Pin No. Description Pin No. Description

10

1. Red Input 9.

2. Green Input 10.

3. Blue Input 11.

4. GND 12.

5. Connection detect 13.

6. Red GND 14.

7. Green GND 15.

8. Blue GND

+5VDC

GND

SDA

H Sync

V Sync

SCL

Pin No. Description Pin No. Description

1 TMDS data2- 13 TMDS data3+

2 TMDS data2+ 14 +5V

3 TMDS data2/4 shield 15 To check signal cable connected or not.

4 TMDS data4- 16 Hot Plug Detect

5 TMDS data4+ 17 TMDS data0-

6 DDC Clock 18 TMDS data0+

7 DDC data 19 TMDS data0/5 shield

8 Analog Vertical Sync 20 TMDS data5-

9 TMDS data1- 21 TMDS data5+

10 TMDS data1+ 22 TMDS clock shield

11 TMDS data1/3 shield 23 TMDS clock+

12 TMDS data3- 24 TMDS clock-

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20.0” LCD Color Monitor Lenovo L2060wA

4.2. Factory Preset Display Modes

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20.0” LCD Color Monitor Lenovo L2060wA

4.3 Panel Specification

L2060wA had adopted in priority LTM200K by Samsung Electronics and LG display. This model is composed of a

TFT LCD panel,a drivr circuit and a back light unit.The resolution of a 20.0” is 1600×900 and this model can display

up 16.7millions colors.

4.3.1 Features

- High contrast ratio,high aperture structure.

-TN(Twisted Nematic) mode.

- Wide viewing angle.

- High speed response time

- HD+ (1600 x 900 pixels) resolution

- 2 CCFLs

- LVDS (Low Voltage Differential Signaling) interface

- RoHS Compliance

- TCO’03 compliance

4.3.2 Display Characteristics

4.3.3 Absolute Maximum Ratings

If the condition exceeds maximum ratings,it cause malfunction or unrecoverable damage to the device.

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20.0” LCD Color Monitor Lenovo L2060wA

4.3.4 Optical Characteristics

(Conditions: Ta= 25°C,Vlcd=5.0V,fv=60Hz,Dclk=69.25MHz, IBL=7.5mA):

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20.0” LCD Color Monitor Lenovo L2060wA

4.3.5 Electrical Characteristics

a ) TFT LCD Module

b)The back light unit is an edge-lighting type with 2 CCFTs (Cold Cathode Fluorscent Tube).The

characteristics of two lamps are shown in the following tables

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20.0” LCD Color Monitor Lenovo L2060wA

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20.0” LCD Color Monitor Lenovo L2060wA

4.3.6 Interface Connections

-LCD Connector(CN1). :FI-XB30SL-HF11(JAE), MDF76LBRW-30S-1H (Hirose) or Equivalent

- Mating Connector : FI-XC30C2L (Manufactured by JAE) or Equivalent

MODULE CONNECTOR(CN1)PIN CONFIGURATION

Note: 1. All GND(ground) pins should be connected together and to Vss which should also be connected to

the LCD’s metal frame.

2. All V

3. Input Level of LVDS signal is based on the IEA 664 Standard.

(power input) pins should be connected together.

LCD

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20.0” LCD Color Monitor Lenovo L2060wA

5. Block Diagram

5.1 Software Flow Chat

1

2

N

4

5

Y

6

7

Y

N

3

8

18

9

10

Y

N

12

Y

14

19

N

13

15

11

17

N

Y

N

Y

16

Y

17