Acer RB23WABAS User Manual

ACER

DBG DPBU IIDBG DPBU II

Service Manual

ACER_LCD_H233H_SM081126V1

Model ID:RB23WABAS

Service

Table of Contents

Important Safety Notice------------------------------------------------------------------------------------- 01

01. Product Specification--------------------------------------------------------------------------------- 02

02. OSD Menu-----------------------------------------------------------------------------------------------08

03. Exploded Diagram

04. Assembly and Disassembly Procedures-----------------------------------------------------------14

Troubleshooting----------------------------------------------------------------------------------------23

05.

06. Firmware Upgrade Procedure------------------------------------------------------------------------35

07. Writing EDID Procedure-------------------------------------------------------------------------------37

08. Block Diagram and schematic----------------------------------------------------------------------- 40

Appendix I : User s Manual

Appendix II User’s QSG

Appendix III :Spare Parts List

Appendix IV: Software Pack

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aware of the necessary safety precautions to be used when serving electronic equipment containing



Safety Notice

Any person attempting to service this chassis must familarize with the chassis and be

high voltage.

26th-Nov.-2008

Product Announcement:

Important Safety Notice

ACER H233H

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This product is certificated to meet RoHS Directive and

Lead-Free produced definition. Using approved critical

components only is recommended when the situation

to replace defective parts. Vender assumes no liability

express or implied, arising out of any unauthorized

modification of design or replacing non-RoHS parts.

Service providers assume all liability.

Qualified Repairability:

Proper service and repair is important to the safe,

reliable operation of all series products. The service

providers recommended by vender should being

aware of notices listed in this service manual in order

to minimize the risk of personal injury when perform

service procedures. Furthermore, the possible existed

improper repairing method may damage equipment or

Using Lead-Free solder to well mounted the parts.!

! The fusion point of Lead-Free solder requested in the

degree of 220 C.°

products. It is recommended that service engineers

should have repairing knowledge, experience, as well

as appropriate product training per new model before

performing the service procedures.

NOTICE:

To avoid electrical shocks, the products should be

connect to an authorized power cord, and turn off the

master power switch each time before removing the

AC power cord.

To prevent the product away from water or exploded

in extremely high humility environment.

To ensure the continued reliability of this product,

use only original manufacturer’s specified parts.

To ensure following safety repairing behavior, put the

replaced part on the components side of PWBA, not

solder side.

To ensure using a proper screwdriver, follow the

torque and force listed in assembly and disassembly

procedures to screw and unscrew screws.

ACER H233H

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1. Product Specification

This model combine with three platform. See below explanation.

1.Scaler IC:RTD2482D used in VGA ,DVI and HDMI port Using simply word to define it(1A1D1H)

2.Scaler IC:RTD24823.used in VGA and HDMI port. Using simply word to define it(1A1D)

Scaler IC:RTD2482RD used in VGA ,DVI and HDMI port .Using simply word to define it.(1A1D1H+OD)

The product specification demonstrate all of the model:

1.1 SCOPE

This document defines the design and performance

requirements for a 23W inch diagonal , flat panel monitor .

The display element shall be a 1920x1080 resolution

TFT-LCD (Thin Film Transistor Liquid Crystal

Display).16.7M color(Hi-FRC) images are displayed on

the panel.Video input signals are analog RGB (0.7Vpp). When the system is powered-on , previously stored screen parameters for a pre-defined mode will be recalled if the operating mode is one of stored in memory( 2213 factory timing mode).This monitor operates normal by non-interlaced mode. DDC (Display Data Channel) function is DDC2Bi compliance. Power saving function complies with the DPMS(Display Power Management Signaling) standard.

1.2 GENERAL REQUIREMENTS

1.2.1Test Condition Brightness level & contrast level max. Full white pattern test mode following spec. Warm up more than 1 hr, ambient light < 10 Lux , Luminance meter CA210 or BM7 or same equipment

1.2.2Test Equipment The reference signal source is a calibrated Chroma 2237 video generator or higher. The use of other signal generators during qualification and production is acceptable provided the product complies with this specification.

1.3 ELECTRICAL This section describes the electrical requirement of the monitor.

The LCD monitor consists of an interface board, a power board and inverter board, a function key board. The interface board will house the flat panel control logic , brightness control logic, audio function control (option), key function control, DDC and DC to DC conversion to supply the appropriate power to the whole board and LCD flat panel , and transmitting LVDS signals into LCD flat panel module to drive the LCD display circuit . The power board will support main power DC5V to interface board, and drive the two CCFLs (Cold Cathode Fluorescent Tube). The interface board provides the power ON / OFF control over the power board. Whole monitor to control the DPMS LED indicator to

function key board.

MONITOR SPECIFICATIONS

ITEM SPEC

Signal Input

(Analog)

Signal Input

(Digital)

Connector

Power Comsumption AC in 100V~240V Active 50W(non-USB)/60W(w/USB), power saving < 2W

Plug and Play VESA DDC2Bi

Power Saving VESA DPMS

InputSignalCounterTolerance

Frequency Analog:

Pixel clock 205MHz (Max)

Video Input Analog 0.7Vp-p

Display Pixels 640 x 480 (VGA) ~ 1920 x 1080

Sync Signal Separate SYNC for TTL (N or P)

Frequency Digital:

Pixel clock 165MHz (Max)

Video Input Analog 0.7Vp-p

Display Pixels 640 x 480 (VGA) ~ 1920 x 1080

AC Input

Input connector D-SUB 15 pin, DVI-D & HDMI

Audio Jack (OPTIONAL)

Front Input ,E-KEY,Auto Adjust ,Menu Adjust(-), A djust(+),Pow erUser’s Control

OSD Contrast, Brightne s s, Po sitio n , Clo c k , Pha se , Analog /D ig ita l,

Factory 13Pre-Defined Timing

User 9

H:31kHz~94kHz

V:50Hz~75Hz

H:31kHz~94kHz

V:50Hz~75Hz

Input Impedance 75Ω

AC100V ~ AC240V 10% 50/60Hz, 3 pin AC power cord

Audio input 3.6Φ

Reset, Color, Languag e se lec t, etc.

≦H 1kHz, ≦V 1Hz

1.3.1 Interface Connectors

1.3.1.1 Power Connector and Cables The AC input shall have an IEC/CEE-22 type male power receptacle for connection to mains power.

The power cord shall be with length of 1.8 0.005 meters.

1.3.1.2 Video Signal Connectors and Cable The signal cable shall be 1.8 0.005 meters long. At the end of the cable shall be a molded-over, shielded, triple row, 15 position, D-subminiature connector. The CPU connection shall have captive screw locks, which will be adequate for hand

tightening. The monitor connection may use small

screws.

1. Product Specification (continued)

ACER H233H

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Connector Pin Description

D-SUB Pin Description

Pin Name De scription

1 Red-V ideo Red video signal input. 2 Green-Video Green video signal input. 3 B lue - V id e o B lu e v id e o s ig n a l inp u t. 4GND Ground 5 DDC-GND DDC ground for the VESA DDC2Bifunction. 6 Red-G N D Analog signal ground for the R ed video. 7 Green-GN D Analog signal ground for the G reen video. 8 B lu e - G N D A n a lo g s ig n a l g r o u n d fo r th e B lu e v id e o .

9 +5 V +5V input from ho st system for the V ES A D DC 2 Bi function. 10 Sync - G N D Signal gro und 11 GN D Ground 12 DDC _SDA SDA signalinputfor the VES A D DCB2i function. 13 H - SY N C Ho rizontal signalinput from the ho st system. 14 V- S Y N C Vertical signal input from the ho st syste m. 15 DDC -SCL SCL signal inputfor the VESA DDC 2Bi function.

1.3.1.3 Audio Jack (option) This jack shall connect the audio input from

host computer.

1.3.2 Video Input Signals

NO. Symbol Item Min Normal Max Unit Remark

1 Fh Scanning Horizontal Frequency 31 94 kHz Minimum Range

2 Fv Scanning Vertical Frequency 50 75 Hz Minimum Range

3 Vih Hi Level Input 2 5 Note 1)

4 Vil Low Level Input 0 0.8 V Note 1)

5 Video RGB Analog Video Level 0.0 0.7 1.0 V 75? to Ground

Note1) Schmitt-Triggers Input , Supported 3.3V device H ( & V) sync output from PC

1.3.2.1 Video Signal Amplitudes

The three video inputs consist of Red , Green , and Blue signals, each with its own coaxial cable terminated at the monitor. These video signals are analog levels, where 0 V corresponds to black , and 700 mV is the maximum signal amplitude for the respective color, when each signal is terminated by a nominal 75.0 ohms .For a given monitor luminance levels are measured using this defined video amplitude driving a monitor meeting the termination requirements . The signal amplitude is not to be readjusted to compensate for variations in termination impendence.

1.3.2.2 Video Signal Termination Impedance This analog video signal termination shall be 75

1% which shall be resistive with a negligible reactive

component.

1.3.2.3 Synchronization ( Sync ) Signals The Horizontal Sync (HS) TTL signal is used to initiate the display of a horizontal line. HS may be either active high or active low, depending upon the timing .The Vertical Sync (VS) TTL signal is used to initiate the display of a new frame .VS may be either active high or active low, depending on the timing .

1.3.2.4 Sync Signal Levels The monitor must accept sync signals from both 3.3 and

5 volt TTL logic families.The inputs shall sense a logic 0

when the input is 0.8 volt or less and shall sense a logic

1 when the input is 2.0 volts or greater. In addition to

these level requirements , there shall also be a minimum of 0.3 volt hysteresis provided for noise immunity (typically by using a Schmitt Trigger input ). That is , the input level at which the monitor actually

detects a logic 0 shall be at least 0.3 volt lower than the level at which it actually detects a logic 1.If the monitor sync processing circuits are designed around the 3.3

volt logic family ,then the sync inputs must be 5 volt tolerant .

1.3.2.5 Sync Signal Loading TTL input loading shall be equivalent to one TTL input load. When logic 0 is asserted by a sync input , the

maximum current source from any single monitor sync input to the driver is 1.6 mA .When logic 1 is asserted , the maximum current source from the driver to any single monitor sync input is 400 uA .

1.3.2.6 Abnormal Signal Immunity The monitor shall not be damaged by improper sync

timing , pulse duration , or absence of sync , or

abnormal input signal amplitude ( video and/ or sync too large or too small) , or any other anomalous behavior of a graphics card video generator when changing modes , or when any combination of input signals is removed or replaced . Additionally , under these conditions , the monitor shall not cause damage to the driving source .

ACER H233H

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1. Product Specification (continued)

1.3.3 User Controls and Indicators

1.3.3.1 Power On / Off Switch The monitor shall have a power control switch visible and accessible on the front of the monitor . The switch shall be marked with icons per IEC 417 , # 5007 and # 5009.The switch shall interrupt the DC supply to the monitor.

1.3.3.2 Power Indicator LED The monitor shall make use of an LED type indicator located on the front of the monitor . The LED color shall indicate the power states as given in Table 1.

1.3.3.3 On-Screen Display The Wistron On Screen Display system shall be used, controlled by a Menu button. If the buttons remain untouched for OSD turn off time while displaying a menu, the firmware shall save the current adjustments and exit. Also, if the video controller changes video mode while the OSD is active, the current settings shall be save immediately, the OSD turn off, and new video mode is displayed.

Key WhenNoOSDdisplay OSDDisplay

Auto

Input Input source select Input source select

ITEM Content

Volume To increase or decrease the sound level

Brightness Adjust backlight luminance of the LCD panel

Contrast Adjust gain of R,G,B signal

Clock Adjust the ratio of dividing frequency of the dot clock

Focus Adjust the phase of the dot clock

H.Position The active screen is horizontally move right and left

V.Position The active screen is vertically move up and down

Color temp Select three kinds of modes(Warm, Cool, User)

OSD Language

OSD Position Adjust the OSD menu position

OSD Timeout The OSD menu show time

Setting The setting of Input Source, Wide Mode, DDC/CI

Information It will show resolution, the frequency of horizontal/vertical synchronizing and S/N

Reset All data copy from shipment factory data

Menu Display

Speaker Volume/Plus

(with Audio)

Speaker Volume/Minus

(with Audio)

Auto Adjust Function Menu exit

Trigger eColor Management Trigger eColor Management

1.USA-select the language among English, French, Italian, Deu tsch, Spanish, ,

, 

2.EMEA-select the language among English, French,Italian, Deutsch, Spanish, Russian,

Dutch, Finnish

1.To select the OSD sub-Menu

2.Enter select

1.Right or Down selection of the OSD menu

2.Increase the value after bar selected

1.Left or up selection of the OSD menu

2. Decrease the value after bar selected

1.3.4 Monitor Modes and Timing Capability

1.3.4.1 Format and Timing The monitor shall synchronize with any vertical frequency from 50 to 75 Hz , and with any horizontal frequency from 31 to 94KHz. If the input frequency is out of the above – specified range, the monitor shall display a warning screen indicating that the input frequency is out of range. Under no circumstances shall any combination of input signals cause any damage to the monitor .

1.3.4.2 Factory Assigned Display Modes There are 13 factory pre-set frequency video modes. These modes have a factory pre-set for all characteristics affecting front-of-screen performance. When the system is powered on, previously stored screen parameters for a pre-defined mode will be recalled if the operating mode is one of those stored in memory. If the operating mode is not one of those stored in memory, the monitor CPU will select the PRESET timing for a mode that is the next lowest in horizontal scanning frequency to the mode being currently used. The screen parameters may be adjusted by the use of the front bezel controls and then may be saved as a user defined mode. The monitor shall include all the preset video timings shown in the following page.( Please see Note. (3) )

1.3.4.3 Mode Recognition Pull-in The monitor shall recognize preset modes within a range of 1KHz whichever is less for horizontal ; and within 1Hz for vertical.

1.3.4.4 User Display Modes In addition to the factory pre-set video modes, provisions shall be made to store up to 9 user modes. If the current mode is a user mode, the monitor shall select its previously stored settings. If the user alters a setting, the new setting will be stored in the same user mode. The user modes are not affected by the pre-set command. If the input signal requires a new user mode, storage of the new format is automatically performed during user adjustment of the display (if required).( Please see Note.(4) )

1. Product Specification (continued)

PRESET PC TIMINGS (ANALOG AND DIGITAL INPUTS)

Resolution

Mode

(active dot)

VGA 640x480@60Hz 800 x 525 31.469 59.941 25.175 4:3

MAC 640x480@66.66Hz 864x525 35 66.66 30.24 4:3

VESA 720x400@70Hz 900x449 31.469 70.087 28.322 1.8

800x600@56Hz 1024 x 625 35.156 56.250 36.000 4:3

SVGA

800x600@60Hz 1056 x 628 37.879 60.317 40.000 4:3

1024x768@60Hz 1344x8 06 48.363 60.004 65.000 4:3

XGA

1024x768@70Hz 1328x8 06 56.476 70.069 75.000 4:3

VESA 1152x864@75Hz 1600x900 67.5 75 108 4:3

SXGA 1280x1024@60Hz 168 8x1066 63.981 60.020 108.000 5:4

WXGA 1280x800@60Hz 1680x831 49. 702 59.810 83.500 16:10

WXGA+ 144 0x900@60Hz 1904x931 55.935 59.887 106.500 16:10

1920x1080@60Hz 2576x1120 67.158 59.963 173.000

1920x1080@60Hz 2200x1125 67.500 60.000 148.500

Resolution

(total dot)

Horizontal

Frequency (KHz)

Vertical

Frequency (Hz)

Nominal Pixel

Clock (MHz)

PRESET VIDEO TIMING(DIGITAL INPUT)

CEA-861 H-Active V-Active I/P H-Total H-Back V-Total V-Back H-Freq. V-Freq. P-Freq.

-c-code Porch Porch (kHz) (Hz) (MHz)

1 640 480 p 800 48 525 33 31.5 60 25.2

2,3 720 480 p 858 60 525 30 31.5 60 27.027

4 1280 720 p 1650 220 750 20 45 60 74.25

5 1920 1080 i 2200 148 1125 15 33.75 60 74.25

16 1920 1080 p 2200 148 1125 36 67.5 60 148.5

Aspect

Ratio

16:9

ACER H233H

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1.3.5.3 Panel Timing and Interface The controller supplied with the monitor shall control all panel timing. This controller shall adequately insulate the monitor from the computer, so that no possible combination of input signals from the computer shall cause damage to the flat panel or any other component of the monitor. The LCD panel interface shall support the TFT standard.

1.3.6 DC - AC Inverter Requirements The DC-AC inverter is on the power board. The frequencies used by the DC-AC inverter used to power the backlight shall be chosen so as to prevent any noticeable effects on the flat panel (such as a rolling effect).

1.3.7 Power Supply Requirements

The AC to DC converter power supply for the monitor shall be an external AC to DC converter ”brick” This brick shall have an IEC receptacle for main power input and a pin - in ---socket for DC power out. The brick shall provide sufficient power for both the monitor and the backlight assembly, and shall meet requirements specified in Table

Analog input (VGA) treats all timings as PC-timings.

1.3.5 Controller Requirements

1.3.5.1 General Requirements The monitor shall include a controller capable of converting the analog RGB signal from a standard 1920x1080 resolution video controller in the CPU to a signal which can be displayed on the panel. The controller will include a PLL,A/D converters, LVDS transmitter and other circuitry necessary to perform its function. The PLL shall be stable enough to ensure that a static image from the CPU is placed in the same physical location on the flat panel in each frame.

1.3.5.2 Video Stretching

The monitor shall contain provisions to “stretch” the video signal, so that an input signal from the computer in any resolution smaller than 1920 x 1080 is automatically expanded to fill the entire screen.

ACER H233H

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1. Product Specification (continued)

1.3.8 Display Communications Channel The monitor assembly shall provide a display communications channel that conforms to VESA DDC2Bi hardware requirements. This configuration shall contain the 128-byte (HDMI 256-byte)EDID file as specified by VESA EDID standard. The monitor should not write to the EDID file for the first two minutes of operation following power-up UNLESS some action taken by the user or the host CPU forces the write (for instance, requesting the serial number via the OSD). Furthermore, it is recommended that CMOS switches be incorporated to isolate the DDC IC from outside connections while the EDID Fault Management is being updated. This is to prevent corruption of the data by attempts to read the data while it is being changed.

1.3.9 Firmware Update Function (same ISP function) The update firmware need through from the D-Sub connector, use DDC I2C bus to do update firmware.

1.4. ELECTRICAL

1.4.1 General Requirements

The panel used as the display device shall be an 1920x1080 resolution 23W, TFT LCD. This panel shall be approved for use in this monitor.

1.4.2. Panel Timings The controller included with the monitor shall translate

all video timings from the CPU that meet the timing requirements listed in Panel specification into timings appropriate for the panel. Under no circumstances may the controller supply the panel with timings that may result in damage . The controller shall insulate the panel from the CPU , so that the panel shall always be driven per it's own specification regardless of the timings being sent from the CPU.

1.4.3.Polarizer Hardness The outer face of the front polarizer panel shall be

covered with a coating witha#3hardness value .

1.4.4.Backlight Requirements

1.4.4.1 General Requirements The backlight assembly shall be designed to

support field replacement at the customer site or authorized service center.The lamps shall have a continuous operating life of at least 50,000 hours at 25 . The operating life is defined as having

℃ ended when the illumination of light has reached 50% of the initial value. The lamps shall extend a sufficient amount from the edge of the light guide that sputtering over the life of the lamps shall not cause degradation of the luminance uniformity (such as non-illuminated bands along the edges of the display).

1.4.4.2 Lamps Startup Time The backlight lamps shall start about 2 sec of the

time the monitor power switch is pressed or the monitor is restarted from a power - down mode . The starting time shall stay about 2 sec. for the minimum expected life of the lamps.

Test conditions are as follows :

Ambient Light ---------------------- < 1.0 lux

Temperature-------------------------- 10 Inactive Time ----------------------- > 24 hours

1.4.5.Defects

1.4.5.1Visual Inspection The LCD panel shall be inspected with all pixels

set to white, black, red , green , and blue. The color variation, brightness variation , and overall appearance must not be perceived as poor quality .Areas and / or parameters considered questionable shall be subjected to detailed measurements .

1.4.5.2 Display Degradation Over the life of the product , variation of the parameters specified in Panel specification shall be maintained within reasonable limits. The panel must not exhibit any significant defects while in operation ( excluding the CCFL operation ).This does not in any way change the warranty given by the panel manufacturer .

1.4.5.3 Light Leakage Except for the active display area , there shall be no light emission visible from any angle from any other part of the display . For this test , the ambient illumination must follow panel's specification.

℃

1. Product Specification (continued)

ACER H233H

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1.4.5.4 Allowable Defects No cosmetic defects are allowed except those specified

below. The conditions of visual inspections are as follows :

For 23 series Viewing distance is to be approximately 35-50cm Ambient illumination is to be 300 to 700 lux. Viewing

angle shall be at 90 degree. Defects not apparent within

one minute shall be ignored.

1.4.5.5 Defect Terminology Table 3 gives the descriptive terms used in classifying

defects.

Spots or lines that appear dark in the display patterns and are

Dark / Spots / Lines

Bright Spots / Lines

Polarizer S cratch

Polarizer D ent

Rubbing Line

Newton R ing The “rainbow” effect caused by no n-uniform cell thickness.

M o ttling

Dim Line

Cross Lines Off

Bright / D ark D ot A sub – pixel (R,G,B dot) stuck off / on (electrical).

usually the result of contamination. D efects do not vary in size or intensity (contrast) w hen contrast voltage is varied. Contrast variation can be achieved through the use of varying gray shade patterns.

Spots or lines that appear light in the display patterns. Defects do not vary in size or intensity (contrast) w hen contrast voltage is varied. C ontrast variation can be achieved through the use of varying gray shade patterns.

W h e n the un it lig hts , lin es app e ar light (w hite ) w ith d isp lay patterns dark and do not vary in size. Physical dam age to the polarizer that does not dam age the glass

W hen the unit lights, spots appear light (white) w ith display patterns dark and do not vary in size. Physical dam age to the polarizer that does not dam age the glass.

Horizontal or diagonal lines that appear gray with the display patterns dark and may have resulted from an “out of control” rubbing process on the polyimide or “waves” on the B EFs or prism sheets.

W hen the unit lights, variation / non – uniform ity (splo tch in es s) app ea rs light (w hite ) w ith the dis pla y and might vary in size.

W h e n the un it lig hts , lin e(s) in the m on ito r (v e rtical) or m ajo r (horizontal) axis appear dim , but not completely on or off.

W hen the unit lights, lines in both the m inor and major axis do not appear.

Average Diameter smaller of

(L+W)/ 2 or L/ 20+2W

Acceptable Number Minimum Separation

< 0.1mm Non countable N / A

0.1mm~0.3mm 10 15mm

0.31 mm ~ 0.5 mm 10 15 mm

0.51 mm ~ 1.25 mm 5 15 mm

1.26 mm ~ 2.5 mm 3 25.4 mm

2.51 mm ~ 3.75 mm 3 25.4 mm

Greater than 3.75 mm NONE Not applicable

Note : Allowable distance between spots of two sizes is the min imum separation

number for the smaller spot. Therefore, if there are two spots, 1.30mm and 0.4mm

in diameter, they must be at l east 15mm ap art.

1.5 Optical Characteristics Depends on the LCD supplier's spec. Details refer to QA Inspection Spec.

1.4.5.6 Smudges, Streaks and Smears When viewing the panel oriented so as to maximize reflected light , there shall be no visible smudging ,

streaking, smearing or other non-uniformity from contaminants ,fingerprints, or defects in any of the visible surfaces. This is independent of whether the unit is operating or off .

1.4.5.7 Other Defects

Undefined defects that are considered to be rejectable

will be reviewed as they become apparent. These panels will be referred to the Corporate / Manufacturer Purchasing Agreement for disposition.

1.4.5.8 LCD Inspection

Put LCD panel on inspection table and illuminate the

panel with a daylight fluorescent lamp located above the panel surface such that the luminance at the LCD panel is between 1000 lux and 1500 lux .Defect limits are given in Table 4 . Table 4

ACER H233H

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2 OSD Menu

2.1 MAIN OSD MENU a. Display OSD menu when user press “MENU” button on

front bezel

b. Layout as following figure 1-1

The description for control function

d. The definition of size and color for main menu

Figure 1-2 color & size definition for function Icons

e Icons instruction

Function

Stat us

Non-Focus

Focus

Focus on

Item-page

Picture OSD Setup Information

2. OSD Manu (continued)

ACER H233H

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f. Item page status

Status Display type

Non-focus

Item focused

Item selected

The description for control function

Key Function description

Power Power off the monitor

<Movingthefocusup

>Movingthefocusdown

Auto Exit the OSD menu

e Trigger the acer eColor Management

Key Function description

Power Power off the monitor

<Movingthefocusup

>Movingthefocusdown

Menu Select function item for adjustment

Auto Exit from the item page to icon place

e Trigger the acer eColor Management

Enter to the item page

1. It has no function at the information page.

c. The definition of color & size for the acer eColor management

OSD

d. Icons introduction

Scenario mode:

Key Function description

Power Power off the monitor

< Decrease the setting value for target item

> Increase the setting value for target item

Menu No function

Auto Exit from item selected status

e Trigger the acer eColor Management

Acer eColor management a. Display acer eColor Management OSD when user press

“e” button on the front bezel or trigger this function in OSD menu/picture page.

b. Layout as following figure 1-8

Mode Contrast (OSD) Brightness (OSD)

User mode (User defined) (User defined)

Text mode 50 (slope 1.0) 44 (61%)

Standard mode 50 (slope 1.0) 77 (85%)

Graphics mode 60 (slope 1.04) 97 (98%)

Movie mode 56 (slope 1.025) 77 (85%)

Note: The contrast/brightness value of modes should be adjusted by requirement. Operation method: Step 1: Press “e” key to initial scenario mode. Step 2: Press “>” or “<” key to select the mode you want (not

cyclic).

Step 3: If user has NO action after Step 2, OSD will disappear

after 10 sec and do “auto scan” (mode keep in original one, no change). If user press “e” key after Step 2, it means user confirm the chosen mode and monitor will do “auto scan” as well.

ACER H233H

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2. OSD Manu (continued)

Volume management OSD a. Display volume management OSD, when user press “<” or “>”

button on front bezel.

b. Layout as following figure 1-10, key operation at items page

(No item selected)

Key Function description

Auto

input

Close volume OSD

< Volume down

>Volumeup

c. The definition of color & size for the volume management

OSD and file

Power turn-off

Stand-by then Input Signal

LED Light Effect in Soft-key Power ON

Normal operation

Normal Operation then remove Signal

Appendix *Multiple language

2. OSD Manu (continued)

ACER H233H

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ACER H233H

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3.1 Packing Exploded Diagram

3. Exploded Diagram

3.2 Product Exploded Diagram

3. Exploded Diagram (continued)

ACER H233H

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ACER H233H

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4.1 Assembly procedures:

Connect the cable between power board(P802)

P308

and interface board (P301) Connect the cable between power board(P003) and interface board(P308) Connect the USB board cable(P301) into interface board(P805) Connect speak cable into interface board(P001) Connect the FFC cable into interface board Connect the power key cable(P601)into interface board(P309)

P309

4. Assembly and Disassembly Procedures

Fix the speaker and speaker cable, The white line

P003

intheleft,theredlineintheright.

Turn the monitor faced down and put it on the

bracket chassis module till both parts firmly

Connect FFC cable to LCD panel. There are

two locks over here when plugging in should be

noticed.

FFC

Use a Phillips-head screwdriver screwed the

No.1~4 screws till that power board and bracket

chassis base firmly attached.(No1~3 screw

size=M3x6; No4 screw size=M4x8;

Torque=9~10KGFxCM).

Use a Phillips-head screwdriver screwed the

No.1~2 screws till that interface board and bracket

chassis base firmly attached.

(No1~2 screw size=M3x6; Torque=9~10KGFxCM).

P301

P001

P805

P802

Plug in parallel direction

Angel < 5 degrees

Take lamp cables out from the holes shown as the

photo.

4. Assembly and Disassembly Procedures (continued)

ACER H233H

Go to cover page

Plug 2 lamp cables to the connectors of inverter

board.

Use a Hex-head screwdriver screwed the DVI and

D-SUB connectors (No.1~4 Hex Nut screws

Size=M3x8;Torque=4~6KGFxCM).

S11

S12

Use a Phillips-head screwdriver screw 3 screws

(No1~2 Screw Size=M3x10;No3 screw size=M3*6

Torque=4~6KGFxCM).

Stick the safety tape

Connect OSD key cable into interface board(P306)

S10

Take out the USB cable to through out the hole.

Use a Phillips-head screwdriver screw 4 screws

(No1~4 Screw Size=M3x6;

Torque=2.5~3KGFxCM).

S13

Use a Phillips-head screwdriver screwed the

No.1~2(No1~2 screw size=M3x6; Torque=9~10

KGFxCM).

Connect the USB cable.

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