Acer H243H User Manual

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Acer

Acer –LCD-H243H

Service Manual

LCD Monitor Acer H243H

- 0 -

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

Copyright 2006 InnoLux Tech. Corp. Ltd

All Rights Reserved

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 H243H Service Manual

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Acer –LCD-H243H

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:

zThis 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.

zDo 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.

zDo not remove the monitor cabinet. There are high-voltage parts inside that may cause electric shock to human bodies.

zStop using the monitor if the cabinet is damaged. Have it checked by a service technician.

zPut your monitor only in a lean, cool, dry environment. If it gets wet, unplug the power cable immediately and consult your closed dealer.

zAlways 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.

zDo 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

zWhen replacing parts or circuit boards, clamp the lead wires around terminals before soldering.

zKeep wires away from high voltage, high temperature components and sharp edges.

zKeep wires in their original position so as to reduce interference.

zAdjustment of this product please refers to the user’ manual.

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01 Product Specification

1. General:

H243H is designed with LVDS interface and VGA/DVI-D/HDMI input, 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 into1920x1080full screen display. 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.)

(1)

DCR

: 40000:1 (Max)

 

Response time (Tr+Tf)

: 5ms (TYP. ON/OFF)

(2)

 

2ms (Gray to Gray)

 

Viewing angle

: 170° (H)/ 160°(V), (TYP.)

(3)

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

Note (1)(2)(3): This item spec depend on the LCD panel.

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)

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

2.1.1

Operating:

 

Temperature range

: 0°C to 50°C

Relative humidity

: 5% to 90%

2.1.2

Storage note 1:

 

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Temperature range

: -20°C to 60°C

Humidity range

: 5% to 90%

2.1.3Altitude note 2

Operating

10000 ft (Ta=50, t=24h)

Storage

30000 ft (Ta=30, t=24h )

Note 1: Temperature and relative humidity range must be in the area shown as the following figure due to panel limited

Note 2: Altitude spec must not over panel spec.

2.2

Safety, EMC, Ergonomics and Compatibility Requirements

 

 

 

 

 

 

 

Safety & EMC

MET, CB, Bauart, CCC, FCC, CE, VCCI-B

 

 

 

 

 

 

 

 

Ergonomics

MPRII ISO13406-2

 

 

 

 

 

 

 

 

Compatibility

Windows 95/98/Me/2000, Windows XP, Window Vista

 

 

 

 

 

 

 

 

Power Management

Energy Star

 

 

 

 

 

 

2.3

Electrostatic Discharge Requirements

 

The subject unit must withstand ±8KV for contact discharge and ±15KV for air discharge of Electrostatic Discharge

 

and meet the standard of IEC61000-4-2(EN55024). (without discharge on VGA/DVI pin)

2.4

Reliability

 

 

The MTBF of this product shall be greater than 25,000 hours excluding the LCD panel. The LCD panel life which is defined as the time period for the maximum luminance to reduce to 50% of the initial value is 40,000 hours minimum at the condition of displaying an all WHITE field at mid Brightness and Contrast settings.

3. Electrical and Optical Characteristics and Performance

3.1 Main Power Supply

3.1.1AC Input Voltage Range

It is a universal type and the input voltage range is from 100 ~ 240Vrms

3.1.2 AC Input Current

1.5A (max) at 100VAC input

0.8A (max) at 240VAC input

AC Frequency Range

The frequency range is from 50Hz to 60Hz

Inrush Current

a.40A max at cold-start, 25°C, DC output full-loading and 100Vac input

b.60A max at cold-start, 25°C, DC output full-loading and 240Vac input

Regulator Efficiency

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≥75%

(DC output full loading and nominal AC input voltage range)

Ripple and Noise

Total composite ripple and noise less than 800mV for +25V output, and less than 150mV for +5V output, and 50mV for +3.3V output tested by DC loading side parallel with a 47uF/EC and 0.1uF/Ceramic. Capacitors and measured band-width with DC-20MHz

DC Output Voltage and Current

3.1 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

Set brightness control and also contrast control at maximum, to measure the screen center, the light output shall BL ≥ 240 cd/m2 (as panel spec).

3.2 White balance

The test standard conditions refer to Sec 3.1.( Brightness and contrast are under default value )

Mode

 

Chromaticity Coordinate

 

 

x

 

y

 

 

 

 

 

Cool

9300K

 

0.283 ± 0.030

 

0.297 ± 0.030

Warm

6500K

 

0.313 ± 0.030

 

0.329 ± 0.030

User

 

 

Panel While x

 

Panel While y

3.3Brightness uniformity

The test standard conditions refer to Sec 3.1.

Min. luminance of nine points (backlight)

≥75%

 

Max.luminance of nine points (backlight)

 

 

L/2

 

L/10

 

 

 

4

5

6

W/10

 

1

2

3

 

7

8

9

 

 

 

 

W/2

 

 

 

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4.Input / Output Signal Specifications

4.1Video signals

Analog RGB signal:

0.7Vp-p

(Input impedance = 75 Ohm)

Sync:

TTL level

(Input impedance

1k Ohm)

Positive and negative sync of Separate Horizontal/Vertical Sync

Digital :

TMDS Signal:

(min)

±200mVpp@24Bit

4.2 Signal Timing

Through D-SUB/DVI connectors, this unit can support FH= 31~80 KHz, Fv=55~76Hz, with maximum pixel clock 165MHz input signal and WSXGA+ output. Modes details as below:

VESA MODES

 

Mode

Resolution

Total

H Frequency

V Frequency

Pixel Clock

 

 

(MHz)

 

 

 

 

 

 

 

 

 

VGA

640x480

800 x 525

31.469

59.941

25.175

 

 

640x480

832 x 520

37.861

72.809

31.500

 

 

 

640x480

840 x 500

37.500

75.000

31.500

 

 

 

800x600

1024 x 625

35.156

56.250

36.000

 

 

SVGA

800x600

1056 x 628

37.879

60.317

40.000

 

 

800x600

1040 x 666

48.077

72.188

50.000

 

 

 

 

 

 

800x600

1056x625

46.875

75.000

49.500

 

 

XGA

1024x768

1344x806

48.363

60.004

65.000

 

 

1024x768

1328x806

56.476

70.069

75.000

 

 

 

1024x768

1312x800

60.023

75.029

78.750

 

 

VESA

1152x864

1600x900

67.5

75

108

 

 

1280x960

1800x1000

60

60

108

 

 

 

 

 

SXGA

1280x1024

1688x1066

63.981

60.020

108.000

 

 

1280x1024

1688x1066

79.976

75.025

135.000

 

 

 

 

 

VESA

1280x720

1650x750

44.955

59.940

74.176

 

 

WXGA

1280x800

1680x831

49.702

59.810

83.500

 

 

1360x768

1792x795

47.712

60.015

85.500

 

 

 

 

 

WXGA+

1440x900

1904x931

55.935

59.887

106.500

 

 

1440x900

1936x942

70.635

75.000

136.750

 

 

 

 

 

SXGA+

1400x1050

1864x1089

65.317

59.978

121.75

 

 

WSXGA+

1680x1050

2240*1089

65.290

59.954

146.250

 

 

UXGA

1600x1200

2160x1250

75.000

60.000

162.000

 

 

1920x1080-R

2080x1111

66.587

59.934

138.50

 

 

 

 

IBM MODES

 

EGA

720x400

900x449

31.469

70.087

28.322

 

 

 

 

MAC MODES

 

 

 

 

VGA

640x480

864x525

35

66.66

30.24

 

 

SVGA

832x624

1152x667

49.722

74.55

57.28

 

 

SXGA

1152x870

1568x909

68.700

75.000

84.520

 

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

4.3Timing requirements

The LCD monitor must be capable of displaying standard resolutions within the vertical frequency range of 55 ~ 76 Hz and the horizontal scan range of 31 ~ 80 KHz with maximum pixel clock of 190MHz.

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Vertical / Horizontal Sync polarity: positive or negative.

If input signal is out of range of horizontal 31~80 KHz or vertical 55-76Hz, or pixel clock large than 165MHz, message “Input Not Supported” is shown on screen.

4.1DDC data

H243H Analog

 

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

01

01

01

01

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

00

00

01

03

68

35

1D

78

EA

60

85

A6

56

4A

9C

25

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

12

50

54

AF

CF

00

81

80

71

4F

95

00

95

0F

A9

40

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

B3

00

01

01

01

01

1A

36

80

A0

70

38

1F

40

30

20

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

35

00

13

2A

21

00

00

1A

00

00

00

FC

00

48

32

34

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

33

48

0A

20

20

20

20

20

20

20

00

00

00

FD

00

38

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

4C

1F

53

12

00

0A

20

20

20

20

20

20

00

00

00

FF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

00

30

30

30

30

30

30

30

30

30

30

30

30

30

00

CS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

H243H DVI

 

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

01

01

01

01

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

00

00

01

03

80

35

1D

78

EA

60

85

A6

56

4A

9C

25

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

12

50

54

AF

CF

00

81

80

71

4F

95

00

95

0F

A9

40

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

B3

00

01

01

01

01

1A

36

80

A0

70

38

1F

40

30

20

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

35

00

13

2A

21

00

00

1A

00

00

00

FC

00

48

32

34

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

33

48

0A

20

20

20

20

20

20

20

00

00

00

FD

00

38

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

4C

1F

53

12

00

0A

20

20

20

20

20

20

00

00

00

FF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

00

30

30

30

30

30

30

30

30

30

30

30

30

30

00

CS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

5.1Panel general specifications

A General specifications

Supplier

AUO

 

M240HW01-V0

Model name

 

531.36 × 298.89

Display Area

 

276.75(Per one triad) × 276.75

Pixel Pitch

 

 

Display Colors:

16.7M colors (RGB 6-bit + Hi_FRC)

 

 

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1920 × 1080

 

 

 

Number of Pixel

 

 

 

R.G.B. Vertical Stripe

 

 

 

Pixel Arrangement

 

 

 

 

300 cd/m2 (TYP.)

 

 

 

Brightness

 

 

 

 

1000 (TYP.)

 

 

 

Contrast Ratio

 

 

 

 

170(Horizontal) / 160(Vertical)

 

 

 

Viewing Angle

 

 

 

 

Normally White

 

 

 

Display Mode

 

 

 

 

75

 

 

 

Frame rate

 

 

 

 

5ms (TYP. ON/OFF) / 2ms (Gray to Gray)

 

 

 

Response Time

 

 

 

 

Anti-Glare, 3H

 

 

 

Surface Treatment

 

 

 

 

4

 

 

 

Lamp

 

 

 

 

556.0(W) ×323.2(H) ×16.65(D) (TYP.)

 

 

 

Outline Dimension

 

 

 

 

 

 

 

5.2Keypad Function

5.2.1Control buttons on the front bezel

 

CONTROL KEY

 

KEYS FUNCTION

 

 

 

 

 

[POWER]

Power on or power off the monitor

 

 

 

 

 

A. When “Main OSD” displays, press these keys to change the contents of an adjustment

 

[►], [◄]

 

item, or change an adjustment value

 

B. When “Main OSD” un-displays, press [►] to show “Audio” OSD and increase the

 

 

 

 

 

volume, press [◄] to show “Audio” OSD and decrease the volume .

 

 

 

 

 

 

 

A. When “Main OSD” un-displays, press [MENU] to enter OSD interface.

 

[MENU]

 

B. When “Main OSD” displays, press [MENU] to perform function of menu icon that is

 

 

 

highlight or enter next level menu.

 

 

 

 

 

 

 

A. When “Main OSD” un-displays, press [AUTO] to perform auto-adjustment

 

[AUTO]

 

B. When “Main OSD” displays, press [AUTO] to return to previous level menu

 

 

 

C. When “Empowering Technology OSD” displays, press [AUTO] to exit the OSD

 

 

 

 

 

 

 

A. When “Main OSD” un-displays, press [e Color] to show “Empowering Technology

 

[e Color ]

 

OSD”.

 

 

B. When “Main OSD” displays, press [e Color] to exit the OSD, and to show “Empowering

 

 

 

 

 

 

Technology OSD”

 

 

 

 

 

 

 

A. Press ”input key” one time to search (a port with signal in order)

 

[Input select]

 

B. Show “source icon” at the same time, as searching that port

 

 

C. Go into next port automatically, if search the port without signal

 

 

 

 

 

 

D. Display it, if search the port with signal

 

 

 

 

5.3Hot Key Operation

HOT KEY OPERATION

FUNCTION

e Color AUTO MENU

POWER

DESCRIPTION

 

 

 

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Press [e], and then press

 

 

FACTORY

 

 

 

 

 

 

[POWER] for DC power on.

 

 

 

 

 

 

ON

OSD menu will be shown with

 

 

MODE

 

 

 

 

 

 

“F” on the left top. Select “F” for

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

entering factory mode.

 

 

 

 

 

 

 

 

 

 

 

5.4OSD Structure

The On-Screen Display (OSD) shall be an easy to use icon based menu through keypad OSD buttons or remote control unit. The unit shall leave the factory with all OSD controls set to their default values.

First

Second

Third

Fourth

Control

Default Value

Range

 

 

 

 

 

 

 

 

 

User

 

 

 

 

 

 

 

 

 

 

 

Acer e color

empowering Technology

Text

 

 

 

 

 

---

Standard

 

 

Standard

 

 

Management

 

 

 

 

Graphics

 

 

 

 

 

 

 

 

 

 

 

 

 

Movie

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

User mode

77

 

 

 

 

 

 

 

 

 

 

 

 

Text mode

44

 

Brightness

---

---

0 100

 

 

 

Standard mode

77

 

 

 

 

 

 

 

 

 

 

 

 

Graphics mode

97

 

 

 

 

 

 

 

 

 

 

 

 

Movie mode

77

 

 

 

 

 

 

 

 

 

 

 

 

User mode

50

 

 

 

 

 

 

 

 

 

 

 

 

Text mode

50

Picture

Contrast

---

---

0 100

 

 

Standard mode

50

 

 

 

 

 

 

 

 

 

 

 

 

Graphics mode

60

 

 

 

 

 

 

 

 

 

 

 

 

Movie mode

56

 

 

 

 

 

 

 

 

H. Position

 

 

0 100

50

 

 

 

 

 

 

 

 

 

V. Position

---

---

0 100

50

 

 

 

 

 

 

 

Focus

0 100

---

 

 

 

 

 

 

 

 

 

 

 

 

 

Clock

 

 

0 100

50 (1)

 

 

 

 

 

 

 

 

 

 

Warm

---

---

---

 

 

 

 

 

 

 

 

 

 

Cool

---

---

---

 

 

 

 

 

 

 

 

 

Color Temp

 

Red

0 100

80

 

 

 

 

 

 

 

 

 

 

User

Green

0 100

80

 

 

 

 

 

 

 

 

 

 

 

Blue

0 100

80

 

 

 

 

 

 

 

 

 

Auto Configure

---

---

---

---

 

 

 

 

 

 

 

 

 

H. Position

---

---

0 100

Depending on the

keypad

 

position

 

 

 

 

 

 

 

OSD

V. Position

---

---

0 100

3

 

 

 

 

 

 

 

 

 

OSD Timeout

---

---

10 120

10

 

 

 

 

 

 

 

 

 

Wide Mode

Full

---

---

Full

 

Setting

Aspect

---

---

 

 

DDC/CI

ON

---

---

ON

 

 

 

 

 

 

 

 

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OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ACM

ON

 

---

---

OFF

 

 

 

 

 

 

 

 

OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VGA

 

---

---

 

 

 

 

Input

 

 

 

 

 

---

 

 

 

DVI

 

---

---

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HDMI

 

---

---

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EMEA

NO-EMEA

---

---

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

English

English

---

---

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Russian

 

---

---

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Deutsch

Deutsch

---

---

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Language

Français

Français

---

---

English

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Español

Español

---

---

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Italiano

Italiano

---

---

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Dutch

 

---

---

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Finnish

 

---

---

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reset

---

 

---

---

---

 

 

 

 

 

 

 

 

 

 

 

 

 

Resolution

---

 

---

---

 

 

 

 

 

 

 

 

 

 

 

 

 

 

H. Freq

---

 

---

---

 

 

 

Info

 

 

 

 

 

 

(2)

 

 

V. Freq

---

 

---

---

 

 

 

 

 

 

 

 

 

 

 

 

 

Input Type

---

 

---

---

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S/N

---

 

---

---

 

 

 

 

 

 

 

 

 

 

 

 

Notes: (1) Clock default 50 is for Visa timing. Others depend on timing.

(2) Depend on timing & S/N

6. SOP of firmware upgrade (Manufacturer of Scaler is Mstar)

6.1 Operational condition:

Equipment: PC, ISP card, signal cable and power cable.

ESD requirements: antistatic wrists, antistatic gloves (fingers), and connecting cable

Name of ISP program: ISP_Tool_v3.7.5.exe

Manufacture of FW IC PMC/SST/MX

6.2Operational steps:

1.Connection: connect PC to PCBA with signal cable, and then keep AC and DC in open state.

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One port of ISP program card is connected to PC print port.

2. Adjust ISP programming

Firstly, double click ISP_Tool_v3.7.5EXEI and open ISP program, then select “Device”, next select manufacturer model of FW IC, which should be correspondent with that of PCBA FW IC. Double click Figure One.

FW IC

Model

Secondly download FW software: first select “READ”, and then load FW software in Rooter (Fig.2).

FW software rooter

Software

Checksum

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Thirdly, select “Connect” and enter ISP MODE as in the following Figure 3.

Fourthly, select “AUTO”, and keep its default value. Click “RUN” for beginning programming. There will be prompting if programming is OK.

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Note: if programming fails or success rate is not high, click “Config” and adjust its speed in “E2PROM DEVICE SETTING”

After connecting, AC ON,

DC ON

OK

Open ISP program

OK

Choose manufacturer and model of FW IC

OK

LOAD FW software

OK

Click Connect and enter

ISP MODE

OK

Click AUTO and RUN for beginning programming

OK

NG

Turn off power if programming is OK

Flowing chart

Choose Config and adjust programming

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2. Flat Panel Specification

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03 Exploded Diagram

3.1 H243H_SCREW_LIST

 

 

 

Q'T

Fixed

 

ITEM

PN

Description

Y(P

Remark

T(kg*cm)

 

 

 

CS)

 

1

509146306

SCREW,P,CROSS,W/WAS

7

6.5±0.5

For

 

200R

,M3*6,Zn-Cc

 

 

NVBD/PWRBD/HDMI

 

509216608

SCREW,F,CROSS,M4*8,B

 

12±1

 

2

LACK,NL,ROHS(NYLOK

4

For Hingle toBack cover

 

110R

)

 

 

 

 

 

 

 

 

3

509412610

SCREW B CROSS T

3

8.5±0.5

For Hingle to Stand Front

500R

T-4*10 BLK ROHS

 

 

 

 

4

509000000

BOLT,#4-40x11.8,Ni

4

4.0±0.25

For D-SUB CON&DVI

700R

 

 

 

 

 

3.2. LCD Exploded drawing (All)

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Unstable power

Check sampling

Circuit

Check the R pin voltage of IC803 about 2.5V

yes

Check pin6 of IC802 voltage is 14V

yes

Check pin2 of IC802 voltage above 0.85V

yes

04Troubleshooting

4.1No Power & LED Off

NG

NG

Check F801,

R808,R806

Check the C pin voltage of

IC803 if 3V

NG

Check R832,IC801

NG

Change F801,

R808,R806

Change

IC803

NG

Check

FB801,D803,C8 07,C810 if short

yes

Change

FB801,D803,C807,

C810

NG

Change R815, R 809, R848,

 

R 849, R850,R851,C809,

 

 

END

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4.2No raster

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4.2Black screen

Black Screen

Check power supply:

 

 

NG

 

 

Pin 1, 2 of CN104

 

 

 

 

 

 

 

 

 

 

 

OK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Check power supply:

 

 

NG

 

 

For U104

 

 

 

 

 

 

 

 

 

 

 

OK

 

 

 

 

 

 

 

 

 

 

 

 

 

Check reset:

 

 

NG

 

 

pin 8 of U104

 

 

 

 

 

 

 

 

 

 

 

OK

 

 

 

 

 

 

 

 

 

 

 

 

 

Check Crystal

 

 

NG

 

 

waveform

 

 

 

 

 

 

 

 

 

Pin 25,26 of U104

 

 

 

 

 

 

 

 

 

 

 

OK

 

 

 

 

 

 

 

 

 

 

 

 

 

Check CCFL_Enable

OK

Check Pin 7 of CN104

NG

 

Pin 101 of U104

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NG

 

 

 

 

 

 

U104 fail

 

 

 

OK

 

 

 

 

 

 

POWER Fail

Check U101,

U102

Check C161,

R183

Check X101, C156,

C157,R191

Inverter Fail

Check Q102,

R101, R102

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Bad Screen

Check LVDS

cable

NG

Change LVDS

cable

NG

Check Crystal:

Pin 25,26 of U104

NG

Change X101, C156,

C157

4.4Bad Screen

OK

Workmanship

 

OK

 

LVDS cable NG

 

 

 

 

OK

 

Check the pins

 

of U104

 

 

 

 

 

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4.5 White screen

White Screen

Check LVDS

 

OK

 

 

Workmanship

 

Cable Insert OK?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NG

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OK

 

 

 

 

 

Change LVDS

 

 

 

 

 

 

 

 

 

 

 

LVDS cable NG

 

 

 

 

 

 

 

 

 

 

Cable

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NG

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OK

 

 

 

 

 

Check VLCD is

 

 

 

 

 

 

 

 

 

 

 

 

Check LVDS cable

OK

 

Panel NG

 

+5V?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NG

 

 

 

 

NG

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Check Panel

NG

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

U104 Fail

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Enable of U104

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OK

Check Q101,

Q104, Q105, R105,

R108

NG

Q101, Q104, Q105,

R105, R108 fail

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05 Spare parts List

 

 

 

82424171A120R

 

 

 

 

OEM PART NO

DESCRIPTION

MOQ

N/A

792381300701R

PCBA,I/F BOARD(EMEA,W/SPK),LP2441-717 RO

50

1

792381400700R

PCBA,P/I BOARD,W/SPK,LP2441-717 ROHS

50

1

792381500000R

PCBA,POWER KYEPAD/B,LP2441 ROHS

50

1

792381500010R

PCBA,TOUCHPAD BOARD,LP2441 ROHS

50

1

453070801190R

PWRCORD 16A/250V BLK 6FT VDE/KTL H05VV-F

50

1

453030300370R

CABLE,DVI-D 18+1P MALE 6FT BLACK , ROHS

50

1

453030300371R

CABLE,DVI-D 18+1P MALE 6FT BLACK

50

1

453010100380R

CABLE,D-SUB 15P MALE 6FT BLACK/BLUE, ROH

50

1

453030300120R

CABLE AUDIO 1P 6FT BLACK/GREEN

50

1

CP03B06P0

430303002230R

HRN LVDS FFC 30P 166.5mm W/TASTE

50

1

430300400390R

HRN ASS'Y 4P 27MM UL1571#28

50

1

430300802060R

HRN ASSY, 2X4P TO 1X8P ,220mm,UL1571#28

50

1

714050021200R

ASSY BACK COVER,LP2441

50

1

714030022100R

ASSY BEZEL ,LP2441

50

1

714011206200R

ASSY STAND ,LP2441

50

1

714020018200R

ASSY BASE,LP2441

50

1

501020228602R

COVER,BACK,LP2441

50

1

502060201100R

HINGE,LP2441

50

1

501260210800R

STAND, LP2441

50

1

502090103100R

CHASSIS,W /HDMI, W/DVI,LP2441

50

1

631102240130R

LCP 24" M240HW01-V0-00(A)(AUO)ROHS

50

1

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06 Schematics and Layouts

6.1 PI BD Layout

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6.2 Switching Mode Power Supply circuit

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7.0 Assembly and Disassembly

The tool of Assembly and disassembly : 1) Electrostatic gloves 2) Electric screwdriver: the lengthe of screwdriver top is 6±0.5cm and 15±0.5cm ; the diameter of screwdriver top is Φ5*H5mm

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Assembly and Disassembly (continue)

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Assembly and Disassembly (continue)

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Assembly and Disassembly (continue)

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Assembly and Disassembly (continue)

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Assembly and Disassembly (continue)

53