ViewSonic VS11201, Q9b-2 Service Manual

ViewSonic Q9b-2

Model No. VS11201

19” Color TFT LCD Display

(Q9b-2_SM Rev. 1b Aug. 2006)

ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA – [phone]

Service Manual

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Copyright

Copyright © 2006 by ViewSonic Corporation. All rights reserved. No part of this publication
may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any
language or computer language, in any form or by any means, electronic, mechanical, magnetic,
optical, chemical, manual or otherwise, without the prior written permission of ViewSonic
Corporation.

Disclaimer

ViewSonic makes no representations or warranties, either expressed or implied, with respect to
the contents hereof and specifically disclaims any warranty of merchantability or fitness for any
particular purpose. Further, ViewSonic reserves the right to revise this publication and to make
changes from time to time in the contents hereof without obligation of ViewSonic to notify any
person of such revision or changes.

Trademarks

Optiquest is a registered trademark of ViewSonic Corporation.
ViewSonic is a registered trademark of ViewSonic Corporation.
All other trademarks used within this document are the property of their respective owners.

Revision History

Revision SM Editing Date ECR Number Description of Changes Editor

1a 05/02/2006 Initial Release Jamie Chang

(updated RSPL, BOM, Spec.)

1b 08/22/2006

VS-E060267 Add 2nd panel source(HSD190ME-A10/A16)

Jamie Chang

VS-E060268

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TABLE OF CONTENTS

1. Precautions and Safety Notices 1

2. Specification 5

3. Front Panel Function Control Description 14

4. Circuit Description 20

5. Adjustment Procedure 25

6. Troubleshooting Flow Chart 45

7. Recommended Spare Parts List 53

8. Exploded Diagram and Exploded Parts List 58

9. Block Diagram 61

10. Schematic Diagrams 62

11. PCB Layout Diagrams 69

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1. Precautions and Safety Notices

1. Appropriate Operation

(1) Turn off the product before cleaning.
(2) Use only a dry soft cloth when cleaning the LCD panel surface.
(3) Use a soft cloth soaked with mild detergent to clean the display housing.
(4) Use only a high quality, safety approved AC/DC power cord.
(5) Disconnect the power plug from the AC outlet if the product will not be used for a long period of time.
(6) If smoke, abnormal noise, or strange odor is present, immediately switch the LCD display off.
(7) Do not touch the LCD panel surface with sharp or hard objects.
(8) Do not place heavy objects on the LCD display, video cable, or power cord.
(9) Do not use abrasive cleaners, waxes or solvents for your cleaning.
(10) Do not operate the product under the following conditions:

- Extremely hot, cold or humid environment.

- Areas containing excessive dust and dirt.

- Near any appliance generating a strong magnetic field.

- In direct sunlight.

2. Caution

No modification of any circuit should be attempted. Service work should only be performed after you are thoroughly familiar

with all of the following safety checks and servicing guidelines.

3. Safety Check

Care should be taken while servicing this LCD display. Because of the high voltage used in the inverter circuit, the voltage is

exposed in such areas as the associated transformer circuits.

4. LCD Module Handling Precautions

4.1 Handling Precautions

(1) Since front polarizer is easily damaged, pay attention not to scratch it.
(2) Be sure to turn off power supply when connecting or disconnecting input connector.
(3) Wipe off water drops immediately. Long contact with water may cause discoloration or spots.
(4) When the panel surface is soiled, wipe it with absorbent cotton or other soft cloth.
(5) Since the panel is made of glass, it may break or crack if dropped or bumped on hard surface.
(6) Since CMOS LSI is used in this module, take care of static electricity and ensure human earth when handling.
(7) Do not open or modify the Module Assembly.
(8) Do not press the reflector sheet at the back of the module in any direction.
(9) In the event that a Module must be put back into the packing container slot after it was taken out of the

container, do not press the center of the CCFL Reflector edge. Instead, press at the far ends of the
CFL Reflector edge softly. Otherwise the TFT Module may be damaged.

(10) At the insertion or removal of the Signal Interface Connector, be sure not to rotate or tilt the Interface

Connector of the TFT Module.

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(11) After installation of the TFT Module into an enclosure (LCD monitor housing, for example), do not twist or

bend the TFT Module even momentarily. When designing the enclosure, it should be taken into consideration
that no bending/twisting forces may be applied to the TFT Module from outside. Otherwise the TFT Module
may be damaged.

(12) The cold cathode fluorescent lamp in the LCD contains a small amount of mercury. Please follow local

ordinances or regulations for disposal.

(13) The LCD module contains a small amount of materials having no flammability grade. The LCD module

should be supplied with power that complies with the requirements of Limited Power Source
(IEC60950 or UL1950), or an exemption should be applied for.

(14) The LCD module is designed so that the CCFL in it is supplied by a Limited Current Circuit (IEC60950

or UL1950). Do not connect the CCFL to a Hazardous Voltage Circuit.

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Handing and Placing methods

Correct methods Incorrect methods

Only touch the metal frame of the LCD panel or the
front cover of the monitor, DO not touch the surfaceof
the POL

Surface of the LCD panel is pressed by fingers and that
may cause”mura”

Take out the monitor with cushions Taking out the monitor by grasping the LCD panel, that

May cause”mura”

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Correct methods Incorrect methods

Place the monitor on a clean and soft foam pad Placing the monitor on a foreign objects, that could

scratch The surface of the "Panel" or cause "mura"

The panel is placed facedown the lap,that may cause
"mura"

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2. Specification

2-1 GENERAL specification

Test Resolution & Frequency 1280x1024 @ 75Hz
Test Image Size Full Size

Contrast and Brightness Controls

Factory Default:
Contrast = 90%, Brightness = 100%

2-2 VIDEO INTERFACE

Input Connector (refer the appendix A) DB-15 (Analog)
Default Input Connector Defaults to the first detected input

Video Cable Strain Relief

Equal to twice the weight of the monitor for five
minutes

Video Cable Connector DB-15 Pin out Compliant 2B

Video RGB (Analog)
Separate Sync

Video Signals

TMDS (Digital)
Video Impedance 75 Ohms (Analog), 100 Ohms (Digital)
Maximum PC Video Signal 950 mV with no damage to monitor
Maximum Mac Video Signal 1250 mV with no damage to monitor
Sync Signals TTL
DDC2B Compliant with Revision 1.0
Sync Compatibility Separate Sync

Video Compatibility

Shall be compatible with all PC type computers,

Macintosh computers, and after market video

cards

Resolution Compatibility

640x350, 720x400, 640x480, 800x600, 832x624,

1024x768, 1152x864,

1152x870, 1280x960, 1280x1024
Exclusions Not compatible with interlaced video

2-3 USB INTERFACE

N/A

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2-4 POWER SUPPLY

Internal Power Supply FSP FSP035-1PI01ZT
Input Voltage Range 90 to 264 VAC
Input Frequency Range 47.5 to 63 Hertz
Short Circuit Protection Output can be shorted without damage
Over Current Protection 5.0 A typical at 12.0 VDC
Leakage Current 3.5mA (Max) at 254VAC / 60Hz
Efficiency 80 % typical at 115VAC Full Load
Fuse Internal and not user replaceable
Power Dissipation 36W(typ) 40W(max)
Max Input AC Current 1.5 Arms @ 90VAC, 0.75 Arms @180VAC

Inrush Current (Cold Start)

50 A (max) @ 115VAC

90 A (max) @ 230VAC

Power Supply Cold Start

Shall start and function properly when under full

load, with all combinations of input voltage, input

frequency, and operating temperature.

Power Supply Transient Immunity

Shall be able to withstand an ANSI/IEEE

C62.41-1980 6000V 200 ampere ring wave

transient test with no damage.
Power Supply Line Surge Immunity

Shall be able to withstand 1.5 times nominal line

voltage for one cycle with no damage.

Power Supply Missing Cycle Immunity

Shall be able to function properly, without reset or

visible screen artifacts, when ½ cycle of AC power

is randomly missing at nominal input.

Power Supply Acoustics

The power supply shall not produce audible noise

that would be detectable by the user. Audible

shall defined to be in compliance with ISO 7779

(DIN EN27779:1991) Noise measurements of

machines acoustics. Power Switch noise shall not

be considered.
Power Saving Operation(Method) VESA DPMS Signaling

On Mode < 36W(Typ) / 40W (max)
Power Consumption

Active Off < 1 W @ 120 Vac /

< 1.5W @ 220Vac
Recovery Time On Mode = N/A, Active Off < 3 sec

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2-5 ELECTRICAL REQUIREMENT
Horizontal / Vertical Frequency

Horizontal Frequency 30 – 80 kHz
Vertical Refresh Rate 55 – 75 Hz.
Maximum Pixel Clock 135 MHz
Sync Polarity Independent of sync polarity.

Timing Table

Analog

Item

Timing

Separated

Composite

SOG

Digital - TMDS

Remark

1 640 x 350 @ 70 Hz, 31.5 KHz 

The vertical image size might not full

screen

(Vertical position = center).
2 640 x 480 @ 60 Hz, 31.5 KHz 
3 640 x 480 @ 67 Hz, 35 KHz 
4 640 x 480 @ 72 Hz, 37.9 KHz 
5 640 x 480 @ 75 Hz, 37.5 KHz 
6 720 x 400 @ 70 Hz, 31.5 KHz 
7 800 x 600 @ 56 Hz, 35.1 KHz 
8 800 x 600 @ 60 Hz, 37.9 KHz 
9 800 x 600 @ 72 Hz, 48.1 KHz 

10

800 x 600 @ 75 Hz, 46.9 KHz 
11 832 x 624 @ 75 Hz, 49.7 KHz 
12

1024 x 768 @ 60 Hz, 48.4 KHz 

13

1024 x 768 @ 70 Hz, 56.5 KHz 

14

1024 x 768 @ 75 Hz, 60.2 KHz 

15

1152 x 864 @ 75 Hz, 67.5 KHz 

16

1152 x 870 @ 75 Hz, 68.7 KHz 

17

1280 x 960 @ 60 Hz, 59.7 KHz 
18 1280 x 1024 @ 60 Hz, 64 KHz 
19 1280 x 1024 @ 75 Hz, 80 KHz 

Primary Presets

1280x1024 @ 75Hz

User Presets

Number of User Presets (recognized timings) Available: 10 presets total in FIFO configuration

Changing Modes

● Maximum Mode Change Blank Time for image stability : 3 seconds (Max), excluding “Auto Adjust” time

● The monitor needs to do “Auto Adjust” the first time a new mode is detected

(see section “0-Touch™ Function Actions”)

● While running Change Mode, Auto Adjust or Memory Recall, the image shall blank

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2-6 FRONT PANEL CONTROLS AND INDICATORS
Front Panel Hardware Controls

Power Switch (Front Head) Power Control, soft Power Switch.
Power LED (Front Head) Green – ON

Orange – Active Off

Dark = Soft Power Switch OFF
Front Panel Controls
(Head; From left to right)

Button Icon Function
Button1

Select(backward)

Button2

Select(forward)

Button3

Power

Button4

-

Adjust Down

Button5

+

Adjust Up

Reaction Time OSD must fully appear within 0.5s after pushing Button 1

Short Cuts Function from the button(s)

Button 1 Auto Image Adjust.
Button 2 Main Menu
Button 4 Mute on/off
Button 5 Volume OSD
Button 4 + Button 5
+ Button 3

Factory Mode
(The Burning mode is build in Factory mode)

Remark : All the short cuts function are only available while OSD off

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Function descriptions

Main Menu Controls

The Main Menu OSD include most of control functions.
Please refer to APPENDIX B (Main Menu OSD Table) for the detail.

Factory Default OSD Actions

Memory Recall action on the analog and digital mode as below

1. Set the factory defaults as shown in Section 2-8

2. Clean all the mode setting buffer

3. Execute Auto Image Adjust

0-Touch™ Function Actions

1. Execute Auto Image Adjust when new mode detected, and save the settings to buffer for
further use

2. It should be reset by Memory Recall function
(Should not reset by power off, power unplug and others)
OSD Auto Save
The OSD shall save new settings when it is turned off by the user or when it times out.
There shall not be a separate save

Factory Defaults

Item Defaults
Contrast 90
Brightness 100
Color Setting NATIVE

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2-7 AUDIO INTERFACE (SPEAKER SPECIFICATION)

Speaker specification

Line input connection 3.5 mm stereo jack
Line input signal 0.7 Vrms
Line input impedance 18 kOhm
Maximum power output (Electric) 1 W@ < 15 % distortion
Signal to Noise Ratio 50 dB
Frequency response 200 Hz – 10 Khz
Distortion < 5 % THD (@1kHz)

Vibration

There should be no audible vibration with
volume at 100% and treble / bass at
default.

Screen image

There should be no affect on the screen

image stability under any conditions.
Connector PC99 requirement Audio in Lime Green pantone # 577C
Cable type / length 3.5mm stereo cable / 1.8m length

Audio DPMS

Speakers should be off when the rest of

the monitor is in power saving.

Sympathetic

Under following conditions, there should

be no sympathetic heard

1. input <=0.7Vrms

2. Volume OSD <=80

Distance =30cm ±5cm

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2-8 Panel Characteristics :

1

st

and 2nd Source Panel

Model number 1

st

Source Panel: Hannstar HSD190ME13-A16

2

nd

Source Panel: Hannstar HSD190ME13 -A10

Type Active Matrix TFT, TN technology
Active Size 19”
Pixel Arrangement RGB Vertical Stripe
Pixel Pitch 0.294 mm
Glass Treatment Anti-Glare
# of Backlights 4 CCFL
Backlight Life 40000 Hrs (Min)

50000 Hrs (Typ)
300 cd/m2 (Typ after 30 minute warm up) Luminance (Center) –

CCT = User Color (R/G/B=100%),
Contrast/ Brightness = Max

240 cd/m2 (Min after 30 minute warm up)

Brightness Uniformity 75 % (Typ) / 70 % (Min)
Contrast Ratio 700 :1 (Typ)
450 : 1 (Min)
Color Depth 16.2 million colors (6+2 bit panel)

Viewing Angle H, V, D (CR >10)

Typical:

H = 150 degrees
V = 135 degrees

Minimum:

H = 130 degrees
V = 115 degrees

Viewing Angle H, V, D (CR >5)

Typical:

H = 160 degrees
V = 155 degrees

Response Time
10%-90% @ Ta=25°C

On/Off

Typical = 8 ms

Maximun = 12 ms

Mercury

3.0 mg per lamp

Panel Defects Please see Panel Quality Specificat ions.

*Over 50% units per shipment shall meet the Typical value above.

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2-9 IMAGE PERFORMANCE
Display Size

Horizontal Display Size, Primary Preset Full Screen
Vertical Display Size, Primary Preset Full Screen

Luminance

Lv (Max) –Condition:
Brightness / Contrast = 100%
Color Temperature = User (R/G/B=100)

Lv (Max) = The Luminance requirement of
section 2-6 “TFT LCD PANEL”

Lv (NATIVE) –Condition:
Brightness = Default / Contrast = Default
Color Temperature = NATIVE

Lv (NATIVE) / Lv (Max) x 100% > 85%

Lv (COOL) –Condition:
Brightness = Default / Contrast = Default
Color Temperature = COOL

Lv (COOL) / Lv (Max) x 100% > 70%

Lv (WARM) –Condition:
Brightness = Default / Contrast = Default
Color Temperature = WARM

Lv (WARM) / Lv (Max) x 100% > 70%

Contrast Ratio

CR(Max) –Condition:
Contrast / Brightness = 100%
Color Temperature = User (R/G/B=100)

Same as the Contrast Ratio in section 2-6
“TFT LCD PANEL”

Saturation

Contrast = Default
Brightness = Default
Test pattern = 128-gray

No visible saturation

Preset Color Temperatures

Color Temperature = WARM
(CCT around 5500K)

x = 0.332 ± 0.03

y = 0.348 ± 0.03
Color Temperature = NATIVE
(CCT around 6500K)

x = 0.313 ± 0.03

y = 0.329 ± 0.03
Color Temperature = COOL
(CCT around 9300K)

x = 0.283 ± 0.03

y = 0.298 ± 0.03

Video Cards Compatibility

Peaking Performance : Peaking is not adjustable

Raster Artifacts

● Video Artifacts : No visible streaking, sag, or smearing artifacts when driven by the
specified video cards in the primary mode and after user adjustment to best condition

● Power Supply, and Grounding Artifacts : No visible artifacts in any specified video mode
within the horizontal or vertical frequency range of the monitor

● Temperature Drift : Image shall not drift or lose fine-tune adjustment

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2-10 MECHANICAL

Desktop

Dimension 418 mm (W) x 408 mm (H) x 184 mm (D)

16.5" (W) x 16.1" (H) x 7.2" (D)

Monitor Weight 4.9 Kg (10.8 lbs)

Head Only / Wall Mount

Dimension 418 mm (W) x 363 mm (H) x 57 mm (D)

16.5" (W) x 14.3" (H) x 2.2" (D)

Monitor Weight 4.6 Kg (10.1 lbs)

Ergonomics

Tilt Up

+15º ±2 º

Tilt Down

-5 º ±2 º

Cabinet Material

Display Head Plastic Material ABS-94HB
Neck/Base Plastic Material ABS-94HB

Internal Plastic Cabinet Components

All internal plastic cabinet components shall be
in compliance with the requirements of MPR II
The reference for the Front Bezel is the Black
color chip provided by ViewSonic
The color difference between any two cabinet
components shall be less than 0.80 “Delta E”,

Front Bezel Color

in the 1976 CIE L*a*b Colorspace.
Neck, Base, Speaker Cover, Rear Cover
and Rear Logo Color

The reference for the Neck, Base, Speaker

Cover, Rear Cover and Rear Logo is the Black

color chip provided by ViewSonic

The color difference between any two cabinet

components shall be less than 0.80 “Delta E”,

in the 1976 CIE L*a*b Colorspace.

Cabinet Color Drift Due To UV-Light

The color drift due to UV-Light shall be less than

3.0

“Delta E” in the 1976 CIE L*a*b colorspace.

Testing shall be performed according to the

requirements of ASTM Test Method D4459-93.
Cabinet Texture

Mold-Tech # 11010 used on all external textured

surfaces.

Samples

The supplier shall submit textured color chips,

plastic material specifications, and Material

Safety Data Sheets for approval.

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3. Front Panel Function Control Description

3.1 Functional Description of Controls

a. User Control Panel

b. Description of Key Functions

. Symbol

Function

•

1. Auto-adjust

2. Select the next OSD icon up

‚

1. Show the main OSD menu

2. Select the next OSD icon down

ƒ

Power indicator

„

Turn the power on or off

…

1. Show the mute OSD.

2. Decrease a function’s (
)

value.

3. Move to the next function (

) left

†

1. Show the volume OSD menu

2. Increase a function’s (
)

value.

3. Move to the next function (

) right

3.2 LED Indicator

The Model has one power LED which has two colors, Green and Amber.
LED should have enough luminance for clear viewable.
Some monitor status area indicated by using this LED, as follows:

Power LED

Normal On Green
Suspend Amber
Active Off Off
Out of Range Amber
No Input Signal Amber (OSD ON)

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3.3 User Adjustment (At Analog Signal input)

3.4 Specification (at all Present Timing)

a. BRT / CONT:

Picture background shall become brighter with BRIGHTNESS at its MAX position, and shall become

darker at its MIN position.

Contrast of picture shall be changed by adjusting contrast value.

b. Adjusted Range for H/V Center : ±10mm or more / ±5mm or more

c. Adjusted Range for H Phase / Pitch : ＞60 steps / ±50 dots

d. Color : Standard Shipping Condition－ Native

Preset Color Mode － Cool, Native, Warm.
User Adjustment Mode － Users can adjust each R or G or B color individually.

Native: x=0.313±0.015;y=0.329±0.015
Cool :x=0.283±0.015;y=0.297±0.015
Warm : x=0.346±0.015;y=0.359±0.015

Hot Key

Brightness Up

Brightness Down

User
Native
Cool

RGB Mode

Auto Adjuster

Brightness

Contrast

H position

V position

Phase

Clock

Color

Language

OSD

Slider Bar

Color Red
Color Green
Color Blue

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e. Recall : Recall include Brightness, Contrast, Volume, OSD Position, OSD Time, and execute

Auto Adjust.

f. Language: Users can choose one of the eight languages：English, French, German, Spanish and

Italian, Russian, Tradition Chinese, Simplify Chinese.

g. Power: Pushing Power button shall cause the monitor to be turned ON and LED to be

illuminated.

Pushing Power button again shall cause the monitor to be turned OFF and LED to be OFF.

3.5 Other User/Service Information

a. SIGNAL OVER RANGE:

If the horizontal or vertical or both input signal frequency exceed the acceptable input frequency
range, the monitor keeps indicating the “SIGNAL OVER RANGE” as the OSD information after
2 seconds. If both input signal frequencies are in the acceptable frequency range, the monitor
puts out the OSD indication and goes back to normal state.

b. RGB NO INPUTSIGNAL:

In case of the pin 14 is +5V, the monitor recognizes PC is connected. Otherwise, the pin 14 is
low (approx. 0V), horizontal or vertical input signals are not exist, the monitor displays OSD
information〝RGB NO INPUTSIGNAL〞5 seconds, then goes to power save.

3.6 Picture Size & Tilt (Primary mode only; to be checked in shipping condition.)

a. Picture Size: ＜All Models＞ Follow Panel Spec.

b. Tilt:

| AB- CD| = Tilt on top ≦ 1mm
| EF - GH| = Tilt on bottom ≦ 1mm
| BB’-EE’| ≦ 1mm (at left side)
| DD’-GG’| ≦ 1mm (at right side)

B’

E’

E

B

D G

D’

G’

F H

A C

bezel
video

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3.7 Brightness Uniformity and Contrast Ratio

a. Brightness Uniformity:
128 640 1152

Bmax = MAX (BA, BB, BC, BD, BE)
Bmax - Bmin Bmin = MIN (BA, BB, BC, BD, BE)

Bmax Bave = AVE (BA, BB, BC, BD, BE)

b. Contrast Ratio:

The contrast ratio is measured at point A and calculated by using the following formula
Luminance with all pixels in white

Contrast ratio (CR) ＝ ≧ 200 （According to HANNSTAR

Luminance with all pixels in black HSD190ME13-A02)

3.8 Shipping Luminance
a. Condition Input signal : Full white pattern
Controls : Color temperature of Office

Cont./Brt. : Default value

Measurement point : One point at the center of the picture.

Warm-up time : 30 minutes.
Color analyzer : CA-210

c. Shipping luminance (center)

Shipping Luminance

Color Temperature

19”

Native

≧ 200 cd / ㎡

3.9 Maximum / Minimum Luminance

a. Condition Input signal : Full white pattern (Primary mode)
Measurement point : Center of LCD screen
Color Analyzer : CA-210
Maximum : BRT→Max.
CONT→Max.

≦ 20%

B

E

A

C D

102
512
922

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b. Specification: Native only

(1) ≧200 cd/㎡

3.10 Black Level

a. Gray Scale Condition Input signal: 32 Gray scale (Primary mode)
Controls : CONT./BRT. primary setting, other shipping setting

condition.

b. Specification：Native (1) The first bar from black of gray scale pattern shall be cut off.

(2) The last bar from the bright of gray scale pattern shall be
discrimination.

3.11 Picture Quality

a. Condition BRT : MIN. ~ MAX.

CONT : MIN. ~ MAX.

*Inspection of picture quality shall be made at the distance of 50 cm in front of LCD surface.

b. Full White Signal

Condition : Input signal – Full white signal

Specification: The following electrical defects shall not be so conspicuous.
(ITU-R 4.5 or better in primary mode, and ITU-R 4.0 or better in other modes)

(2) ringing, seam, etc.
(3) flicker, noise, beat, etc.
(4) shading, etc.
(5) saturation of video power supply, etc.

c. Inverted Crosshatch Signal

Condition : Input signal – Inverted crosshatch signal

Specification: Following electrical defects shall not be so conspicuous.
(ITU-R 4.5 or better in primary mode, and ITU-R 4.0 or better in other modes)

(1) video ringing, over shoot, smear, etc.
(2) vertical jitter, horizontal jitter, picture vibration, etc.

d. Gray Scale Signal

Condition : Input signal – Gray scale signal

Specification: Following electrical defects shall not be so conspicuous.
(ITU-R 4.5 or better in primary mode, and ITU-R 4.0 or better in other modes)

(1) Oscillation, noise, beat, shading, etc.

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3.12 EDID DATA

a. Condition : Maintain Mode
b. Specification : FOR RGB

DDC EDID 128 BYTES DATA STRUCTURE

No. Item EDID Data or Definiti on
00 Header 00 FF FF FF FF FF FF 00
08 ID Manufacturer Name 10 8C (DDL)
0A ID Product Code 00 00 (0)
0C ID Serial Number 00 00 00 00 (0)
10 Week Of Manufacture Week of manufacture
11 Year Of Manufacture Year of manufacture
12 EDID Version,Revision 01 03
14 Video Input Definition 7E(Analog signal,0.700,0.000(0.7

Vp-p),Black-to-Black, ,Separate Syncs, Composite Syncs, Sync

on Screen )
15 Max. H. Image Size 25 (37cm)
16 Max. V. Image Size 1E(30cm)
17 Display Transfe

Charac.(gamma)

78(2.20)
18 Feature Support(DPMS) EB(Stand-by,Suspend,Active Off supported,R/G/B color display)

19 Color Characteristics Per TFT measurement(See NOTE1)

23

Established Timings AF--(720*480@70Hz) ,(640*480@60Hz),(640*480@72Hz),

(640*480@75Hz),(800*600@56Hz),(800*600@60Hz)
EF--(800*600@72Hz),(800*600@75Hz),(832*624@75Hz)
(1024*768@60Hz),(1024*768@70Hz),(1024*768@75Hz)
(1280*1024@75Hz)
00—

26 Standard Timing Identification 81 80— 1280*1024@60Hz; 71 4F— 1152*864@75Hz z;

81 40--1280*960@75Hz; 31 46— 640x480 @66Hz
01 01-- 01 01-­01 01-- 01 01--

36 Detailed Timing 1 Description BC 34 00 98 51 00 2A 40 10 90 13 00 78 2D 11 00 00 1E

(1280*1024@75Hz,Video Size:376mm*301mm,No Stereo)

48 Detailed Timing 2 Description 00 00 00 FF 00 20 44 44 4C 30 30 30 30 30 20 20 20 20

Monitor S/N: DDL00000

5A Detailed Timing 3 Description 00 00 00 FD 00 37 4B 1E 50 0E 00 0A 20 20 20 20 20 20

(Vf:55~75Hz,Hf:30~80KHz,Pixel Clock:140MHz)

6C Detailed Timing 4 Description 00 00 00 FC 00 4C 4D 31 39 30 34 0A 20 20 20 20 20 20

(LM1904)

7E Extension Flag 00
7F Checksum Per DDC Specification

NOTE 1 Panel Specification (HSD190ME13)

Color characteristics R: x=0.6475 y=0.3271

G: x=0.2920 y=0.6143
B: x=0.1416 y=0.0791
W: x=0.3096 y=0.3301

Store in EDID data=

FD 56 A5 53 4A 9D 24 14 4F 54

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4. Circuit Description

A. A/D converters

The ADC is a 7-bit 4-channel analog-to digital converter ,the structure of these ADCS is 7-bit
successive approximation ,analog voltage is supplied from external sources to the A/D input pins and
the result of the conversion is stored In the 7-bit data latch registers(ADC0_REG~ADC3_REG).The
A/D cannels are activated by cleaning the correspondent control bits in the ADC_CON control register,
when users write”1” into one of the enable control bits(EN_ADC0~EN-ADC3),its correspondent I/O pin
will be switched to the A/D Converter input pin

The conversion will be started by setting STRT_ADC Bit, user can monitor this bit to get the valid A/D
channel, its latched data is meaningful, the analog voltage to be measured should be stable during the
conversion operation and the variation will not exceed 1 LSB for the best accuracy in measurement

B.Scalling controller

1. VGA front end

l Built-in triple high speed ADC,PLL for analog RGB input
l Supports both non-interlaced and interlaced RGB graphic input signals
l Input signal ranges from 0.55-0.9v
l Provides RGB analog gain and offset control
l Support 64 steps (one cycle of pixel)of phase adjust
l ADC sampling rates are up to 110MHZ for x type, 160MHZ for E type Supports analog SOG

input

2. YUV Front End

l Support ITU-R BT.656 8-bit input
l Built-in YUV to RGB color space converter

3. Display

l Supports data swap to fit any panel data alignment for PCB Layout
l Built in LVDS transmitter
l Supports spectrum of output clock

4. Hot interface

l Support serial 2-wire IIC bus
l Provides 2 channel PMW

5. Power

l Power supply
l Less than 1.3W

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21

6. Video processor

l Flexible de-interlacing unit for VGA and digital YUV video input data
l Auto-calibration function for quick vide cantering, clock adjust and phase adjust
l Independent horizontal and vertical zoom in/out algorithm
l Enhanced interpolation algorithm for optimal image quality
l Provides RGB digital gain and offset control
l Dithering function supports 24-bits quality for 18-bit panel
l SRGB matrix mapping support
l 10-bit programmable gamma table for panel compensation
l Supports Hue and saturation adjustment
l Built-in POST pattern

Timing controller

l Support RSDS output
l Provides 4 differential data pairs to support 6 or 8-bit RGB data bus
l 10 General Purpose output allow suitability to different production environments
l Provide single pixel (18-24-bit) or dual pixel (36-48-bit)
l Programmable RSDS swing level
l Supports line offset function for two bank system panel
l 12 GPO internal controls 10 GPO external pin outputs
l Supports data swap to fit any panel data alignment for PCD layout

Sync Processor

l Supports separate, composite and TTL-level sync-on-Green (SOG) sync input
l Polarity detection for HSYNCI and VSYNCI
l Fast mode change detection function