Acer D240H User Manual

Acer Acer –LCD-D240H

Service Manual

LCD Monitor Acer D240H

1

Table of Contents

Important Safety Notice .........................................................................................02

01 Product Specification ..........................................................................................03

02 Flat Panel Specification .......................................................................................15

03 Exploded Diagram ..............................................................................................36

04 Troubleshooting....................................................................................................37

05 Spare Parts List ...................................................................................................42

06 Schematics and Layouts.......................................................................................43

07 Assembly and Disassembly ................................................................................46

Appendix : User’s manual

Copyright

This manual may not, in whole or in part, be copied, Photocopied, reproduced, translated, or converted to any electronic or machine readable form without prior written permission of InnoLux Tech. Corp. Ltd.

Acer D240H Service Manual

1

Acer Acer –LCD-D240H

Important Safety Notice

1. Safety precautions

This monitor is manufactured and tested on a ground principle that a user’s safety comes first. However, improper used or installation may cause damage to the monitor as well as to the user.

Warning:

z This monitor should be operated only at the correct power sources indicated on the label on the

rear of the monitor. If you’re unsure of the power supply in you residence, consult your local dealer or Power Company.

z Do not try to repair the monitor by yourself, as it contains no user-serviceable parts. This monitor

should only be repaired by a qualified technician.

z Do not remove the monitor cabinet. There are high-voltage parts inside that may cause electric

shock to human bodies.

z Stop using the monitor if the cabinet is damaged. Have it checked by a service technician. z Put your monitor only in a lean, cool, dry environment. If it gets wet, unplug the power cable

immediately and consult your closed dealer.

z Always unplug the monitor before cleaning it. Clean the cabinet with a clean, dry cloth. Apply

non-ammonia based cleaner onto the cloth, not directly onto the class screen.

z Do not place heavy objects on the monitor or power cord.

2. Product safety notice

Many electrical and mechanical parts in this chassis have special safety visual inspections and the protection afforded by them cannot necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Before replacing any of these components read the parts list in this manual carefully. The use of substitute replacement parts, which do not have the same safety characteristics as specified in the parts list, may create shock, fire, or other hazards.

3. Service notes

z When replacing parts or circuit boards, clamp the lead wires around terminals before soldering. z Keep wires away from high voltage, high temperature components and sharp edges. z Keep wires in their original position so as to reduce interference. z Adjustment of this product please refers to the user’ manual.

Acer Acer –LCD-D240H

01 Product Specification

1.

General:

Acer D240H is designed with LVDS interface and VGA/DVI-D/HDMI input, and

Embedded DPF Function ,it featured with embedded universal AC power supplies and audio input. It’s

a green product and meets all ROHS standard. The power button and display control buttons are on

the front of the monitor. The monitors shall automatically to display lower resolution video modes into 1920x1080 full screen display. It can support 720P when DPF Mode,The image can be adjusted

through OSD control. It support HDCP and color management function.

1.1 Main Features

Maximum resolution : 1920(x3) x 1080 @ 60Hz

Back light system : 4 CCFL (top & bottom edge side)

Pixel pitch : 276.75 um (H) x 276.75 um (V)

Display area : 531.36mm (H) x 298.89mm (V)

Brightness : 300cd/m² (TYP.)

Contrast ratio : 1000׃1 (TYP.) DCR :80000:1 (Max)

Response time (Tr+Tf) : 5ms (TYP. ON/OFF)

2ms (Gray to Gray)

Viewing angle : 170° (H)/ 160°(V), (TYP.)

Input interface : Analog (D-sub 15 pin)

Digital Option (DVI-D 24 pin & HDMI 19Pin)

Power management : Compatible with VESA DPMS

Plug & Play : VESA DDCCI

OSD language : English, French, Spanish, Italian, Deutsch,

Simplified Chinese, Traditional Chinese, Japanese

(Dutch, Finnish, Russian depend on sale region)

Universal AC power supply

1.2 Accessories

AC Power Cord : 1.8 m. (Black. Cord type depend on sale region)

VGA cable : 1.8 m. (15 pin D-SUB, black cable with blue male connector)

User manual : English (640Mb CD)

Warranty card :

DVI cable (option) : 1.8 m. (18+1 pin, black cable with white connector)

HDMI cable (option) : 1.8 m. (19 pin, black cable with white connector)

Acer Acer –LCD-D240H

USB: USB2.0 (optional function) Webcam: 1.0M resolution(1280 x 800), standard USB2.0 interface, array microphone

(optional function)

2.

Operation Specifications

The unit should suffer no visible cosmetic damage and should operate with no degradation in display quality

during exposure to the operating conditions and after exposure to the non-operating conditions, in any

sequence.

2.1 Environmental conditions

Operating Specification

Temperature range Relative humidity 5% to 90% Altitude 0 to 3048M (10000 ft)

Storage

Temperature range Relative humidity 5% to 90% (not condense) Altitude 0 to 9144M (30000 ft)

0°C to 50°C

-20°C to 60°C

2.2 Safety, EMC, Ergonomics and Compatibility Requirements

Items Description

Safety

EMC

Ergonomics

Compatibility

Management

2.3 Electrostatic Discharge Requirements

UL/c CB TUV/G CCC Other

● ● ● ●

FCC CE CCC VCCI-B

● ● ● ●

TCO TCO03

● ● Windows Windows 2000 Windows Windows

● ● ● ●

Energy Star Power

●

Acer Acer –LCD-D240H

Item Condition Spec

Contact discharge: 4KV

Electrostatic

IEC61000-4-2(EN55024)

Discharge

Contact discharge: 8KV ● Air discharge : 8KV Air discharge : 15KV ●

Reliability

Items Condition Spec Note

MTBF

T=25℃

>50,000 Hours，

Luminance

CCFL Life time

50,000 Hours(Typ)

Note1

becomes 50%

Note1. Display an all WHITE field at mid Brightness and Contrast settings.

3.

Electrical and Optical Characteristics and Performance

3.1 Main Power Supply

3.1.1 Input characteristics

Items Condition Spec Note

AC Input Voltage range Universal input full range 90~264Vac AC Input Voltage rating Universal input full range 100~240Vac AC input frequency range 90~264Vac 47~63Hz AC input frequency rating 100~240Vac 50~60Hz

100Vac 2.0A(max) AC Input Current 240Vac 0.8A(max)

Inrush Current

115Vac,cold star,25°C 35A (max)

See Note2

230Vac,cold star,25°C 70A(max)

AC-DC power Efficiency

DC output full loading ≥79%

Note2. Before each test, the buck capacitor need to be discharged. Before each test, it must be 10 minutes at least after the latest test. Hot star not component be damaged.

3.1.2 Output characteristics

Items Condition Spec Note

Ripple and Noise

DC Output Voltage

+25V output <800mv +5V output USB +5V output: Audio +5V output: +25V output <480mv

+5V output USB +5V output: Audio +5V output:

25V loading:0.3A~1.4A 5V loading:0.75A~1.5A Audio 5V: 0A~1.2A USB 5V: 0A~1.5A

25v loading:0.1A~1.5A 5V loading: 0A

<500mv <150mv <500mv

<100mv <100mv <100mv

Vcc25V:23.2V~28V Vcc5V: 4.75V~5.25V Audio 5V: 4.95V~5.45V

USB 5V: 4.75V~5.25V

Vcc25V: 23.2V~30V Vcc5V: 4.75V~5.25V

With system See note 3

With dummy Load

For system active

For power saving or DC off

Acer Acer –LCD-D240H

DC output loading capability

Rise Time

Dynamic load change

Hold-up time

Overshoot

Turn on delay time

Power management See Table-1

Note3: Paralleled a 0.1uF ceramic Cap. And 47uF aluminum Cap. Between the end of DC loading side, Measured band-width=20MHz. Ripple voltage of +25V is less than 1500mv when enter into burst mode.

3.1.3 Protection characteristics Protection Condition Spec

OPP(Over current protection) nominal AC input SCP(short circuit protection) with auto-recovery function OVP(Over voltage protection) Auto recovery <output capacitor voltage

Vcc5V/1.8A,

Vcc25V/1.4A Audio 5V: 1.5A USB 5V: 1.5A

<50mS

AC input: 100V~240V >10mS

<10%

2S

90W ( min )

OTP(Over temperature protection) NA Fuse protection NA

Table-1

Status H-sync V-sync Video Power LED

Power On on on active ≤ 70W White

off on blanked < 2W Amber

Power Saving

Power Off -- -- -- < 1W Off

on off blanked < 2W Amber off off blanked < 2W Amber

3.2 Backlight Power Supply

Panel: AUO-M240HW01-V2

Items Specification

Lamp 4 CCFL Input Voltage 23.2---28V Input current

1.2A (Typ.), 1.4A (Max.)

On/Off switch level

Brightness PWM Duty (ACM Off) Brightness PWM Duty (ACM On) CCFL operating Voltage 900Vrms (Typ.),

CCFL Current

3.6V≧V on≧ 2.0 V (on)

-0.3v ≤ V off ≤ 0.8 V (off)

3.6V≧V on≧ 2.0 V (on)

-0.3v ≤ V off ≤ 0.8 V (off)

35%~100% 3%~100%

7.5mA (Typ.)

8.0mA (Max.)

Acer Acer –LCD-D240H

CCFL startup voltage CCFL startup voltage Operating frequency 40~60 KHz Protect delay time

Efficiency ≥75%

Note: Other panels please refer to the reference panel specs.

Brightness output

The test to verify specifications in this section shall be performed under the following standard conditions

unless otherwise noted.

Temperature : 25 ± 5°C

Test pattern : white

Video Resolution : 1920 x 1080

Video input level : 700 mV ± 2%

Warm-up time : 30 minutes

≧2000 Vrms (0˚C) ≧1850 Vrms (25˚C)

> 1 second

Set brightness control and also contrast control at maximum, to measure the screen center, the light

output shall BL ≥ 240 cd/m2 .

3.3 White balance

The test standard conditions refer to Sec 3.3. (Brightness and contrast are under default value)

Mode

Chromaticity Coordinate

x y

Cool

Warm

User

9300K 0.283 ± 0.030 0.297 ± 0.030 6500K 0.313 ± 0.030 0.329 ± 0.030

Panel While x Panel While y

3.4 Brightness uniformity

The test standard conditions refer to Sec 3.3.

Acer Acer –LCD-D240H

)(backlight points nine of luminance Min.

%≥75

4.

Input / Output Signal Specifications

4.1 AC in

4.1.1 AC Input Voltage: 100~240VAC

)(backlight points nine of luminance Max.

4.1.2 AC Input Current: 1.2A @100Vac, 0.6A @240Vac

4.1.3 AC Frequency Range: 50~60Hz

4.2 Audio in

4.2.1 Input impedance ﹕ ≧ 10K ohm

4.2.2 Frequency response range ﹕200Hz ~ 10kHz

4.3 USB in (Option)

The USB 2.0 includes 4 pins;

pin1:VBUS; pin2:DM; pin3:DP; pin4:GND

4.4 HDMI in

HDMI type A Connector Pin assignment:

19 18 17 16

15 14

13 12

11

10 9 8 7 6 5 4 3 2 1

Pin Symbol Pin Symbol 1 TMDS Data2+ 11 TMDS Clock shield 2 TMDS Data2 shield 12 TMDS Clock-

3 TMDS Data2- 13 CEC 4 TMDS Data1+ 14 No connect 5 TMDS Data1 shield 15 SCL 6 TMDS Data1- 16 SDA 7 TMDS Data0+ 17 DDC/CEC Ground 8 TMDS Data0 shield 18 +5V Power 9 TMDS Data0- 19 Hot Plug Detect 10 TMDS Clock+

Acer Acer –LCD-D240H

4.5 DVI-D in

DVI-D Connector Pin assignment:

Pin Symbol Pin Symbol

1 TMDS Data 2- 16 Hot Plug Detect 2 TMDS Data 2+ 17 TMDS Data 03 TMDS Data 2/4 shield 18 TMDS Data 0+ 4 5 6 DDC Clock 21 7 DDC Data 22 Clock shield 8 Analog Vertical Sync 23 Clock +

9 TMDS Data 1- 24 Clock 10 TMDS Data 1+ 11 TMDS Data 1/3 shield 12 13 14 +5V Power 15 GND

19 TMDS Data 0/5 shield 20

4.6 VGA in

4.6.1 D-sub Connector Pin assignment:

Pin Symbol

1 Red Video 2 Green Video 3 Blue Video 4 N/C 5 Ground 6 Red Ground 7 Green Ground 8 Blue Ground

9 PC +3.3/+5V 10 Sync. Ground 11 N/C 12 DDC SDA 13 H sync 14 V sync

Acer Acer –LCD-D240H

15 DDC SCL

4.6.2 Signal SPEC:

Items Condition Specification

Analog RGB signal Input impedance =75 Ohm 0.7Vp-p Sync

Input impedance ≧1k Ohm

H-Sync Frequency V-Sync Frequency 49~76Hz

4.7 Timing table

VESA MODES

Horizontal Vertical

Mode

VGA

Resolution

640*480@60Hz 31.469 N 59.941 N 25.175

640*480@72Hz 37.861 N 72.809 N 31.5

Nominal

Frequency

+/-0.5KHz Sync Polarity

TTL level, Separate H/V-sync(+/-)

31K~83KHz

Nominal

Frequency

+/-1Hz

Sync

Polarity

Nominal Pixel

Clock (MHz)

SVGA

XGA

SXGA

WXGA

WXGA+

640*480@75Hz 37.5 N 75 N 31.5

800*600@56Hz 35.156 P 56.25 P 36

800*600@60Hz 37.879 P 60.317 P 40

800*600@72Hz 48.077 P 72.188 P 50

800*600@75Hz 46.875 P 75 P 49.5

1024*768@60Hz 48.363 N 60.004 N 65

1024*768@70Hz 56.476 N 70.069 N 75

1024*768@75Hz 60.023 P 75.029 P 78.75

1152*864@75Hz 67.5 P 75 P 108

1280*960@60Hz 60 P 60 P 108

1280*720@60Hz 44.955 P 59.94 P 74.176

1280*1024@60Hz 63.981 P 60.02 P 108

1280*1024@75Hz 79.976 P 75.025 P 135

1360*768@60Hz 47.712 P 60.015 P 85.5

1440*900@60Hz 55.935 N 59.89 P 106.5

1440*900@75Hz 70.635 N 74.984 P 136.75

WSXGA+

UXGA

1680*1050@60Hz 65.29 N 59.954 P 146.25

1680*1050@75Hz (VGA Only) 82.306 N 74.89 P 187.00

1600*1200@60Hz 75 P 60 P 162

1920*1080(Red)@60Hz 66.587 P 59.93 N 138.5

1920*1080@60Hz (VGA Only) 67.158 N 59.96 P 173

IBM MODES

720x400@70Hz 31.469 N 70.087 P 28.322

MAC MODES

VGA

640*480@66.7Hz 35 P

66.667 N 30.24

Acer Acer –LCD-D240H

SVGA

XGA

WXGA

832*624@75Hz 49.725 N 74.55 N 57.283

1152*870@75Hz 68.681 N 75.062 N 100

Other MODES

1280*800@60Hz

49.702 N 59.81 P 83.5

Note: 1. Non-interlace signals only (An interlace signal cannot be display)

2. Please refer to F/W specification for more detail

3. Each frequency of Power Macintosh and Sun Ultra is a reference value

Acer Acer –LCD-D240H

4.8 HDMI timing table

For DVD Player Input, Attached timing is supported :

Mode Resolution Pixel Clock MHz H sync KHz V sync Hz

VGA 640 x 480p 25.2 31.5 60 4:3

NTSC (480i) 720 x 480 13.50 15.73 60 4:3

NTSC (480p) 720 x 480 27.00 31.47 60 4:3

PAL (576i) 720 x 576 13.50 15.63 50 4:3

PAL (576p) 720 x 576 27.00 31.27 50 16:9/4:3

720p 1280 x 720 74.25 37.5 50 16:9 720p 1280 x 720

1080i 1920 x 1080 74.25 28.125 50 16:9

1080i 1920 x 1080 74.25 33.72 60 16:9 1080P 1920 x 1080 148.50 56.250 50 16:9 1080P 1920 x 1080 148.50 67.50 60 16:9

74.25 45 60 16:9

Ratio

4.9 Audio output SPEC

Items

Min TYP MAX

Output power (W) 1.6 2.0 2.4 THD+N = 10%( AT 1KHz 1Vrms)

Output impedance (Ω) 3.4 4 4.6 AT 1KHz 1Vrms

Specification

TEST CONDITIONS

Total harmonic distortion plus noise --- --- 10%

Signal to noise ratio (dB) 40 --- ---

PWM frequency (KHz)

200 250 300

Po≦ 2.0W(at 1KHz 1Vrms,

200HZ <f<10KHZ)

THD+N≦ 5%

Note: The low pass RC Filter (R=100Ω / C=0.047uF) for Class-D Output Power and THD+N Measurement

4.10 DDC data

EDID File Format : VESA’s EDID Standard Version #3, Revision #0,

EDID Structure : Version #1, Revision #3.

EDID Data Table : See the attached table (for example)

.10.1 VGA EDID table

4

0 1 2 3 4 5 6 7 8 9 A B C D E F

0

00 FF FF FF FF FF FF 00 04 72 74 00 00 00 00

1

00 00 01 03 68 35 1D 78 EA 60 85 A6 56 4A 9C

2

12 50 54 AF CF 00 81 80 71 4F 95 00 95 0F A9

3

B3 00 01 01 01 01 1A 36 80 A0 70 38 1F 40 30

4

35 00 13 2A 21 00 00 1A 00 00 00 FC 00 44 32

5

30 48 0A 20 20 20 20 20 20 20 00 00 00 FD 00

6

4C 1F 53 12 00 0A 20 20 20 20 20 20 00 00 00

00

25

40

20

34

38

FF

7

00 30 30 30 30 30 30 30 30 30 30 30 30 0A 00

CS

Acer Acer –LCD-D240H

.10.2 DVI EDID table

4

0 1 2 3 4 5 6 7 8 9 A B C D E F

0

00 FF FF FF FF FF FF 00 04 72 74 00 00 00 00

1

00 00 01 03 80 35 1D 78 EA 60 85 A6 56 4A 9C

2

12 50 54 AF CF 00 81 80 71 4F 95 00 95 0F A9

3

B3 00 01 01 01 01 1A 36 80 A0 70 38 1F 40 30

4

35 00 13 2A 21 00 00 1A 00 00 00 FC 00 44 32

5

30 48 0A 20 20 20 20 20 20 20 00 00 00 FD 00

6

4C 1F 53 12 00 0A 20 20 20 20 20 20 00 00 00

7

00 30 30 30 30 30 30 30 30 30 30 30 30 0A 00

4.10.3HDMI EDID table

0 1 2 3 4 5 6 7 8 9 A B C D E F

00 FF FF FF FF FF FF 00 04 72 74 00 00 00 00 00

0

00 00 01 03 80 35 1D 78 EA 60 85 A6 56 4A 9C 25

1

12 50 54 AF CF 00 81 80 71 4F 95 00 95 0F A9 40

2

B3 00 01 01 01 01 1A 36 80 A0 70 38 1F 40 30 20

3

35 00 13 2A 21 00 00 1A 00 00 00 FC 00 44 32 34

4

00

25

40

20

34

38

FF CS

30 48 0A 20 20 20 20 20 20 20 00 00 00 FD 00 38

5

4C 1F 53 12 00 0A 20 20 20 20 20 20 00 00 00 FF

6

00 30 30 30 30 30 30 30 30 30 30 30 30 0A 01 95

7

02 03 22 F2 23 09 7F 07 4E 01 02 03 84 05 06 07

0

10 11 12 15 93 1F 14 83 01 00 00 66 03 0C 00 10

1

00 10 8C 0A D0 8A 20 E0 2D 10 10 3E 96 00 06 23

2

21 00 00 18 01 1D 00 72 51 D0 1E 20 6E 28 55 00

3

06 23 21 00 00 1E 01 1D 80 18 71 1C 16 20 58 2C

4

25 00 06 23 21 00 00 9E 01 1D 00 BC 52 D0 1E 20

5

B8 28 55 40 06 23 21 00 00 1E 01 1D 80 D0 72 1C

6

16 20 10 2C 25 80 06 23 21 00 00 9E 00 00 00

7

4.11 DPF function

D240H supports DPF Function, which Embeded 2G Nandflash stroage ,it can also

CS

communication with PC by connecting USB cable,and supports 4 IN 1 memory card which includes SD, XD, MS, and MMC, besides the 4 kind’s memory card,it also supports the adaptor card: Mini SD, MicroSD, MS Pro,MS,Duo, MS Pro Duo, RS MMC, MMC Plus, RS MMC,and supports CF card slot include CFI, CF II,MD memory card.User can easily switch to different functions though OSD Menue.

4.11.1.DPF function introduce

Acer Acer –LCD-D240H

1) Nand play photo function:

1. without any memory card, the screen will display slideshow photo from Nand storage,

2. If no photo files in Nand storage,the screen will display browser mode.

2) card reader function

Connect the USB upstream and the card read function will be started when D240H on Monitor mode..PC will find

the two USB devices are CF card and SD/MS/XD/MMC card, the two devices that in the DPF all can be operation by PC

4.11.2. Memory card test

1, Insert SD/MS/XD/MMC card, Select the memory on input source menu

2, Play photo ,the performance should be no color shift, the other function such as

Rotate,effect ,slideshow, next, forward, pause also should be passed.

Notes:

1. SD card family include mini SD, mobile SD,MMC memory card include RS MMC, RS MMC Plus, RS

MMC mobile.

2. MS card slot also support MS Pro, MS Duo, MS Pro Duo,

3. CF card slot support CFI,CF II and MD(Micro Drive) card.

4.11.3. Support format test The D240H only support photo format as below. please check and confirm.

Acer Acer –LCD-D240H

4.11.4. DPF function test

4.11.4.1. DPF Monitor

keypad control flow

1. Switch to DPF

keypad flow

Category ext Yes/ No

Photo

.jpg .bmp

2. DPF play photo mode keypad flow

Acer Acer –LCD-D240H

3. DPF select photo mode flow

4. DPF setting menu flow

Acer Acer –LCD-D240H

Setting menu layer-1

Acer Acer –LCD-D240H

Setting menu layer-2

Setting menu layer-3

Acer Acer –LCD-D240H

4.11.4.2. DPF photo function test

1.Test the picture as below items:

1).Photo performance

2). Next picture

3). Forward picture

4). Pause

5). Play

6), slide show.

7). Rotate.

8). Browser small and big photo

Check and confirm the function is OK!

2.Test the setting menu as below items:

1),Slideshow time

2). Slideshow effect

3). Auto sleep time

4). Reset

5). Random paly

6), Auto copy

7). Delete all

8). Background color

9). Language

Check and confirm the function is OK!

3.Special define for DPF

1). Monitor Switch to DPF mode

2). Monitor language must sync with DPF language

3). If Auto sleep timer progress finished,DPF mode will switch monitor mode

Acer Acer –LCD-D240H

4). If first Monitor mode switch to DPF when AC on and DC on and form power saving ,the screen will display DPF Acer logo

5). If hot_plug any card on DPF mode,the display screen will change to input source select mode .

6). If always press rotate key on play/back mode,the photo will rotate one time.

7). If always press left or right key on browser mode ,if photo less memory range will show the photo else show the last photo

3.Warning message

Acer Acer –LCD-D240H

4.11.5. DPF System Profile

1.DPF-functions overview

2.DPF-Input support& image support

Acer Acer –LCD-D240H

5.

Function Specifications

All the tests to verify specifications in this section shall be performed under the following standard

conditions unless otherwise noted. The standard conditions are:

Temperature : 25 ± 5°C

Warm-up time : 30 minutes minimum

Checking display modes : All the specified modes

5.1 Panel general specifications

5.1.1

Item Describe

Supplier AUO

Model name M240HW01-V0

Display Area 531.36 × 298.89

Pixel Pitch 276.75(Per one triad) × 276.75

Display Colors: 16.7M colors (RGB 6-bit + Hi_FRC)

General specifications

Acer D240H User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual