Envision EN9110 Manuel utilisateur

SERVICE MANUAL

THESE DOCUMENTS ARE FOR REPAIR SERVICE INFORMATION ONLY. EVERY REASONABLE

EFFORT HAS BEEN MADE TO ENSURE THE ACCURACY OF THIS MANUAL; WE CANNOT

GUARANTEE THE ACCURACY OF THIS INFORMATION AFTER THE DATE OF PUBLICATION AND

DISCLAIMS RE LIABILITY FOR CHANGES, ERRORS OR OMISSIONS.

MANUFACTURE DATA: Jul-29-04

TABLE OF CONTENTS PAGE

1. SPECIFICATIONS FOR LCD MONITOR 3

1-1 GENERAL PECIFICATIONS 3

1-2 LCD MONITOR DESCRIPTION 4

1-3 PANEL SPECIFICATION (AU EN02)

1-3-1PANELFEATURE

1-3-2 DISPLAY CHARACTERISTICS

1-3-3 OPTICAL CHARACTERISTICS

1-3-4 PARAMETER GUIDE LINE FOR CCFL INVERTER

1-4 FACTORY PRESET TIMING LIST

1-5 INTERFACE CONNECTOR

2. PRECAUTION AND NOTICES 9

2-1 ASSEMBLY PRECAUTION 9

2-2 OPERATIONG PRECAUTION 9

2-3 STORAGE PRECAUTION 9

2-4 HIGH VOLTAGE WARNING 9

3. OPERATING INSTRUCTIONS 10

4. ADJUSTMENT 12

4-1 ADJUSTMENT CONDITIONS AND PRECAUTIONS 12

4-2 ADJUSTMENTS METHOD. & DESCRIPTION

4-2-1 WHITE BALANCE, LUMINANCE ADJUSTMENT

4-2-2 OSD ADJUSTMENT

5. BLOCK DIAGRAM 15

5-1 SPECIAL FUNCTION WITH PRESS KEY 15

5-2 CIRCUIT FUNCTION DESCRIPTION 15

5-2-1 MAIN BOARD

5-2-2 INVERTER/POWER BOARD

5-3 SOFTWARE FLOW CHART

6. MAINTAINABILITY

6-1EQUITMENT AND TOOLS REQUIRED

6-2TROUBLE SHOOTING

6-2-1 INTERFACE-BOARD TROUBLE-SHOOTING CHART

6-2-2 INVERTER –MODULE TROUBLE SHOOTING CHART 23

6-2-3 KEYBOARD-MODULE TUOUBLE SHOOTING CHART 25

7. MECHANICAL OF CABINET FRONT DIS-ASSEMBLY 27

8. POWER SYSTEM AND CONSUMPTION CURRENT 28

9. SCHEMATICS 29

9-1 MAINBOARD SCHEMATIC DIAGRAM 29

9-2 Adapter Board SCHEMATICS 37

9-3 Inverter Board SCHEMATICS 38

10. PCB LAYOUT 39

11. EDID CONTENT 40

12.BOM LIST 41

1. SPECIFICATIONS FOR LCD MONITOR

1-1 GENARAL SPECIFICATION

1. LCD-Panel:

Active display area 19 inch diagonal

Pixel pitch 0.294 mm x 0.294 mm

Pixel format 1280 x 1024 RGB vertical stripe arrangement

2. Display Color:

8-bit, 16.7 million colors

3. External Controls:

Auto Config/Exit, Brightness (up key), contrast (down key), Menu/Enter, Power

indicator, Power button

4. Input Video Signal:

Analog-signal 0.7Vpp

Video signal termination impedance 75 OHM

Digital-input TMDS

5. Scanning Frequencies:

Horizontal: 30 KHz - 92 KHz

Vertical: 55 Hz – 85 Hz

Pixel clock: 158 MHz

6. Factory Preset Timing: 26

Input signal tolerance: H tolerance ± 1 KHz, V tolerance ±3lines from center

frequency

7. Input Power Source:

Switching Mode Power Supply

AC 100 – 240 V, 50/60 Hz Universal Type

8. Operating Temperature: 0°C - 40°C Ambient

Non-operating Temperature: -20°C - 60°C

9. Humidity:

Operating: 15% to 90% RH

Non Operating: 15% to 90%RH

10. Weight: 5.9 kg for monitor only, 8,7kg with packing.

11. External Connection: 15Pin D-type Connector &24 pin DVI-D, AC power-

Cord

12. View Angle: Min.70 H and V

13. Outside dimension: Width x Height x Thickness = 432x 440 x 198 mm

14. Plug and Play: VESA DDC1/DDC2B

15. Power saving: Compatible VESA DPMS

16. Audio performance (optional): Each speaker shall accept up to 3.0 watt of audio

power without damage or exceeding the frequency response and total harmonic

distortion specification and audio amplifier shall provide two channels of audio up to

2.0 watts per channel from 100Hz to 20kHz.

17. USB hub (optional): 1 up-stream and 4 down-streams

1-2 LCD MONITOR DESCRIPTION

The LCD monitor contains main-board, Inverter module, keyboard, audio module,

USB-hub module and External Adapter.

The main-board controls all logic signals such as panel control logic, backlight

control logic, …etc.

The Inverter module will drive the backlight of panel.

The Adapter supplies power to the LCD monitor.

DVI input

Gm5020 (U600)

LVDS chip

Panel-Power Control

(U203)

MCU (U502)

Data Digital RGB

Panel Control Signal:

Phs, Pvs, PclkA/B,

Pdis

Panel Power 5V

Communication signal:

Hclk, Hfs, Hdata0

Analog RGB

Osc

illat

r 24

stal 24 MHz

DDC-chi

PANEL

Main-board Block diagram

INVERTER

module

Keyboard module

EXTERNAL

ADAPTER

DC 12V 5Amp

DDC

chip

Frame store

Audio module

(optional) USB hub module

(optional)

1-3 PANEL SPECIFICATION (AU EN02)

1-3-1 Panel Feature

－19 inch Color TFT-LCD

－ALL input signals are 2 Channel LVDS interface compatible

－Supported the SXGA(H1280Pixel ×V1024Lines) resolution

－By applying 16.7M colors (RGB 8 bit data)

1-3-2 Display Characteristics

ITEM UNIT SPECIFICATIONS

Screen Diagonal [mm] 480(19”)

Active Area [mm] 376.32(H) x 301.056(V)

Pixel Pitch 1280(x3) x 1024

Pixel Arrangement [mm] 0.294(per one triad) x 0.294

Display Mode R.G.B Vertical Stripe

White Luminance (Center) [cd/m²] 250 cd/m²@7mA (Typ)

Contrast Ratio 600:1(Typ)

Optical Response Time [msec] 25(Typ)

Nominal input Voltage VDD [Volt] +5.0V

Power consumption

(VDD line + CCFL line) [Watt] 28W (Typ.) (w/o Inverter, All white pattern)

Weight [Grams] 2700(Typ)

Physical Size [mm] 404.2(W) x330 (H) x20 (D)(Typ)

Electrical Interface Even/Odd R/G/B data, 3 sync signal Clock

Support Color 16.7M colors (RGB 8-bit data)

Temperature Range

Operating

Storage (Shopping)

[℃]

0 to +50

-20 to +60

1-3-3 Optical Characteristics

The optical characteristics are measured under stable conditions at 25℃(Room

Temperature):

ITEM UNIT CONDITIONS MIN TYP. MAX.

[degree]

Horizontal (Right)

CR=10(Left) 75 85

–

[degree]

Viewing Angle

[degree]

Vertical (Up)

CR=10(Down) 75 85

–

Contrast ratio Normal Direction 400 600

[m sec] Raising Time – 15 25

[m sec] Falling Time – 10 15

Response Time (Note 1)

[m sec] Raising +Falling – 25 40

Red x 0.604 0.634 0.664

Red y 0.324 0.354 0.384

Green x 0.278 0.308 0.338

Green y 0.576 0.606 0.636

Blue x 0.108 0.138 0.168

Blue y 0.057 0.087 0.117

White x 0.28 0.31 0.34

White y 0.3 0.33 0.36

Color Coordinates (CIE) White

White Luminance at CCFL

7.0mA

(central point)

[cd/㎡] 200 250 –

Luminance Uniformity (Note 2) [%] 75 80 –

Crosstalk (in 75Hz)(Note 3) [%] 1.5

1-3-4 Parameter guide line for CCFL Inverter

INVERTER MAX BRINGTHNESS (Vadj: 3.0v), LOAD=100KΩX4(ROOM

TEMPERATURE 25℃±4℃)

ITEM SYMBOL MIN. TYP. MAX. UNIT REMARK

Input voltage Vin 10.8 12 13.2 V

Input current Iin --- 1950 2200 mA FOR 4 LOAD

Output Current Iout 6.0 7.0 8.0 mA FOR 1 LOAD

Frequency F 45.0 50.0 55.0 KHZ

FOR 1 LOAD

H.V open Vopen 1550 1700 1850 Vrms NO LOAD

H.V Load Vload 620 670 720 Vrms RL=100KΩ

Start voltage Vst 1870 1970 2070 Vrms RL=CCFL

Protect delay time PDT 1 1.5 3 Sec

INVERTER MIN BRINGTHNESS (Vadj:0.0v), LOAD=100KΩX4(ROOM

TEMPERATURE 25℃±4℃)

ITEM SYMBOL MIN. TYP. MAX. UNIT REMARK

input voltage Vin 10.8 12 13.2 V

input current Iin 470 520 mA FOR 4 LOAD

Output Current Iout 2.5 3.0 3.5 mA FOR 1 LOAD

Frequency F 45.0 50.0 55.0 KHZ

FOR 1 LOAD

H.V open Vopen 1550 1700 1850 Vrms NO LOAD

Start voltage Vst 1650 1970 2050 Vrms RL=CCFL

H.V Load Vload 270 320 370 Vrms RL=100KΩ

1-4 FACTORY PRESET TIMING LIST

VESA MODES

Horizontal Vertical

Mode Resolution Total

Nominal

Frequenc

+/-

0.5kHz

Sync

Polarit

Nomina

Freq.

+/- 1 Hz

Sync

Polarity

Nominal

Pixel

Clock

(MHz)

640x480@60Hz 800 x 525 31.469 N/P 59.940 N/P 25.175

640x480@72Hz 832 x 520 37.861 N/P 72.809 N/P 31.500

640x480@75Hz 840 x 500 37.500 N/P 75.00 N/P 31.500

VGA

640x480@85Hz 832 x 509 43.269 N/P 85.008 N/P 36.000

800x600@56Hz 1024 x 625 35.156 N/P 56.250 N/P 36.000

800x600@60Hz 1056 x 628 37.879 N/P 60.317 N/P 40.000

800x600@72Hz 1040 x 666 48.077 N/P 72.188 N/P 50.000

800x600@75Hz 1056x 625 46.875 N/P 75.000 N/P 49.500

SVGA

800x600@85Hz 1048x631 53.674 N/P 85.061 N/P 56.250

1024x768@60Hz 1344x806 48.363 N/P 60.004 N/P 65.000

1024x768@70Hz 1328x806 56.476 N/P 70.069 N/P 75.000

1024x768@75Hz 1312x800 60.023 N/P 75.029 N/P 78.750

XGA

1024x768@85Hz 1376x808 68.677 N/P 84.997 N/P 94.500

1280x1024@60Hz 1688x1066 63.981 N/P 60.020 N/P 108.000

1280x1024@75Hz 1688x1066 79.976 N/P 75.025 N/P 135.000

SXGA

1280x1024@85Hz 1728x1072 91.146 N/P 85.024 N/P 157.500

1152x 864@75Hz 1600x900 67.500 N/P 75.000 N/P 108.000

1280x960@60Hz 1800x1000 60.000 N/P 60.000 N/P 108.000

1280x960@85Hz 1728x1011 85.938 N/P 85.002 N/P 148.500

Notice: For digital input, the resolution 1280x1024@ 85hz, 1280x960@ 85Hz are not

supported.

IBM MODES

Horizontal Vertical

Mode Resolution Total

Nominal

Frequency

+/- 0.5kHz

Sync

Polari

Nominal

Freq.

+/- 1 Hz

Sync

Polarit

Nominal

Pixel

Clock

(MHz)

DOS 720x400@70Hz 900 x 449 31.469 N 70.087 P 28.322

720x400@85Hz 936 x 446 37.927 N 85.039 P 35.550

DOS 640x400@70Hz 800 x 449 31.469 N 70.087 P 25.175

DOS 640x350@70Hz 800 x 449 31.469 P 70.087 N 25.175

MAC MODES

VGA

640x480@67Hz 864x525 35.000 N/P 66.667 N/P 30.240

SVGA

832x624@75Hz 1152x667 49.725 N/P 74.551 N/P 57.283

All modes will automatically optimize the screen size with “ AUTO-config “ function, except

3 dos- modes: 640x480@60hz, 720 x400@70hz, 640x350@70hz.

1-5INTERFACE CONNECTION

(A) AC-Power Cable

(B) Video Signal Connectors and Cable

(C)DVI-D and DVI cable

(D)Audio cable (optional)

(E) USB cable (optional)

(F)External Adapter

2. PRECAUTIONS AND NOTICES

2-1 ASSEMBLY PRECAUTION

(1) Please do not press or scratch LCD panel surface with anything hard. And do not

soil LCD panel surface by touching with bare hands (Polarizer film, surface of

LCD panel is easy to be flawed)

In the LCD panel, the gap between two glass plates is kept perfectly even to

maintain display characteristic and reliability. If this panel is subject to hard

pressing, the following occurs:

(a) Uniform color

(b) Orientation of liquid crystal becomes disorder

(2) Please wipe out LCD panel surface with absorbent cotton or soft cloth in case of

it being soiled.

(3) Please wipe out drops of adhesive like saliva and water in LCD panel surface

immediately.

They might damage to cause panel surface variation and color change.

(4) Do not apply any strong mechanical shock to the LCD panel.

2-2 OPERATING PRECAUTIONS

(1) Please be sure to unplug the power cord before remove the back-cover. (Be sure

the power is turn-off)

(2) Please consider that LCD backlight takes longer time to become stable of

radiation characteristic in low temperature than in room temperature.

(3) Please pay attention not to displaying the same pattern for very long-time. For

image might stick on LCD.

2-3 STORAGE PRECAUTIONS

(1) When you store LCD for a long time, it is recommended to keep the temperature

between 5℃-40℃without the exposure of sunlight and to keep the humidity less

than 85% RH.

(2) Please do not leave the LCD in the environment of high humidity and high

temperature such as 60℃90%RH.

(3) Please do not leave the LCD in the environment of low temperature; below -15℃.

2-4 HIGH VOLTAGE WARNING

The high voltage is only generated by INVERTER module; carelessly contacting the

transformer on this module can cause a serious shock. (The lamp voltage after

stable around 600V, with lamp current around 6.5mA, and the lamp starting voltage

was around 1650V, at Ta=25℃)

3. OPERATING INSTRUCTIONS

This procedure gives you instructions for installing and using the LCD monitor

display.

1. Position the display on the desired operation and plug–in the power cord into

External Adapter AC outlet. Three-wire power cord must be shielded and is

provided as a safety precaution as it connects the chassis and cabinet to the

electrical conduct ground. If the AC outlet in your location does not have

provisions for the grounded type plug, the installer should attach the proper

adapter to ensure a safe ground potential.

2. Connect the 15-pin color display shielded signal cable to your signal system

device and lock both screws on the connector to ensure firm grounding. The

connector information is as follow:

15 - Pin Color Display Signal Cable

PIN NO.

DESCRIPTION

PIN NO.

DESCRIPTION

1. RED 9. 5V power from VGA-card

2. GREEN 10. Detect Cable

3. BLUE 11. SYNC. GND

4. GND 12. DDC-Serial Data

5. GND 13. HORIZ. SYNC

6. GND-R 14. VERT. SYNC

7. GND-G 15. DDC Serial Data

8. GND-B

11 15

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