AOC E2260PWHU User manual

21.5" LCD Color Monitor AOC E2260PWHU/E2260SWHU
Service
Service
Service
Horizontal Frequency
30-83 KHz
Table of Contents
Description Page Description Page
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.
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.Hot Keys…………….…..............……...............6
3.3.OSD Setting…………….…...........................…......7
4.Input/Output Specification............……………............23
4.1.Input Signal Connector............………….................23
4.2.Factory Preset Display Modes…….........................25
4.3.Panel Specification.....………...…………................26
5.Block Diagram…….........………….................29
6.Schematic……………........................................30
6.1.Main Board………...........................................30
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING
6.2.Key Board...…….............................................37
6.3.USB Board...……............................................38
6.4.Power Board...……........................................39
7.PCB Layout..………….......................................41
7.1.Main Board………...........................................41
7.2.Key Board…………….....................................42
7.3.USB Board……………....................................42
7.4.Power Board...…….........................................42
7.5. Power Board...……........................................43
7.6. USB Board...……........................................44
8.Maintainability……….........................................45
8.1.Equipments and Tools Requirement...............45
8.2.Trouble Shooting………….............................46
9.White-Balance, Luminance Adjustment.............50
10.Monitor Exploded View………..…….…............52
11.BOM List…………………………………...........56

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Revision List
Version Release Date Revision History L&T Model Name
A00 May-24-2012 Initial Release
HICJT76MBV5ADNF.LF
HICJT76MBVVEDNF.LF
HICJT76BBVK2DNF.LF
A01 JAN-15-2013 Add new model HICJT76JBV4ADNF.LF

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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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1. Monitor Specifications
Panel
Model number E2260PwHU/E2260SwHU
Driving system TFT Color LCD
Viewable Image Size 54.7 cm diagonal
Pixel pitch 0.0827*RGB (H) mm x 0.248 (V) mm
Video R, G, B Analog lnterface & Digital Interface& HDMI
lnterface
Separate Sync. H/V TTL
Display Color 16.7M Colors
Dot Clock 144 MHz
Resolution
Horizontal scan range 30 kHz - 83 kHz
Horizontal scan Size(Maximum) 476.64mm
Vertical scan range 50 Hz - 76 Hz
Vertical scan Size(Maximum) 268.11mm
Optimal preset resolution 1920×1080@60Hz
Plug & Play VESA DDC2B/CI
Input Connector D-Sub 15pin、DVI、HDMI、USB
Input Video Signal Analog: 0.7Vp-p(standard), 75 OHM, TMDS
Power Source 100~240VAC, 50/60Hz
Power Consumption Active < 30W(typical)
Standby < 0.5 W
Off timer 0-24 hrs
Speakers 2W x 2
Physical
Characteristics
Connector Type 15-pin Mini D-Sub 、DVI、HDMI、USB
Signal Cable Type Detachable
Environmental
Temperature:
Operating 0°Cto 40° C
Non-Operating -25°Cto 55°C
Humidity:
Operating 10% to 85% (non-condensing)
Non-Operating 5% to 93% (non-condensing)
Altitude:
Operating 0~ 3,658m (0~ 12,000 ft )
Non-Operating 0~ 12,192m (0~ 40,000 ft )

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2. LCD Monitor Description
The LCD MONITOR will contain a main board and a key board which house the flat panel control logic, brightness
control logic and DDC.
Monitor Block Diagram
Power Board
LED Drive. Flat Panel and
LED backlight
Scaler Board
Key Board
D-SUB
Signal
AC-IN
100V~240V
DVI
Signal
USB Board
USB connector
Audio
Signal
HDMI
Signal

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3. Operating Instructions
3.1 General Instructions
Press the power button to turn the monitor on or off. The other control knobs are located at front panel of the monitor.
By changing these settings, the picture can be adjusted to your personal preferences.
3.2 Hotkeys

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3.3 OSD Setting
1) Press the MENU-button to activate the OSD window.
2) Press<or > to navigate through the functions. Once the desired function is highlighted, press the MENU-button
to activate it . press<or > to navigate through the sub-menu functions. Once the desired function is highlighted,
press MENU-button to activate it.
3) Press <or >to change the settings of the selected function. Press AUTO to exit. If you want to adjust any other
function, repeat steps 2-3.
4) OSD Lock Function: To lock the OSD, press and hold the MENU button while the monitor is off and then press
power button to turn the monitor on. To un-lock the OSD - press and hold the MENU button while the monitor is
off and then press power button to turn the monitor on.
Notes:
1) If the product has only one signal input, the item of "Input Select" is disable to adjust.
2) If the product screen size is 4:3 or input signal resolution is wide format, the item of "Image Ratio" is disable to
adjust.
3) One of DCR, Color Boost, and Picture Boost functions is active, the other two function is turned off accordingly.

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Luminance
1
Press (Menu) to display menu
2
Press or to select (Luminance), and press to enter
3

9
4
5
Press to exit.

10

11

12
4
Press to exit.

13
Color Setup

14

15
Picture Boost

16

17
OSD Setup

18

19
Extra

20
Press to exit.