AOC 919SZ, 919PZ, 919VZ, 919S User Manual

19" LCD Color Monitor AOC 919Pz&919Sz&919Vz

Service

919Pz 919Sz&919Vz

Horizontal Frequency

30-80 KHz

Table of Contents

Description

Table of Contents.......……..............................……........1

Revision List.…........................................…………........2

Important Safety Notice.……............................……......3

1.Monitor Specification..............................………..........4

2.LCD Monitor Description……………………………......6

3.Operation Instruction…………...............……..............7

3.1.General Instructions...........................…...................7

3.2.Control Button…………….…..............……...............7

3.3.OSD Menu…………….…...........................…...........9

4.Input/Output Specification............……………............13

4.1.Input Signal Connector............………….................13

4.2.Factory Preset Display Modes…….........................14

4.3.Panel Specification.....………...…………................15

5.Block Diagram…….....................………….................17

5.1.Main Board…….…………...………………....….......17

Page Description Page

5.2.Power Board……………..……………...….......18

6.Schematic……………........................................19

6.1.Main Board………...........................................19

6.2.Power Board...…….........................................23

6.3.Key Board...…….............................................26

7.PCB Layout..………….......................................27

7.1.Main Board………...........................................27

7.2.Power Board…...............................................30

7.3.Key Board…………….....................................32

8.Maintainability……….........................................33

8.1.Equipments and Tools Requirement...............33

8.2.Trouble Shooting…………..............................34

9.White-Balance, Luminance Adjustment.............38

10.Monitor Exploded View………..…….…............40

11.BOM List…………………………………............44

SAFETY NOTICE

ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSIS

AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING

ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.

CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING

Revision List

Version Release Date Revision History Customer Model TPV Model Name

T9AHMJDBK1K3DN

919Pz

T9AHMJDMKASDDN

T9AHMJDBK1KPAN

A00 Sep.16.2010 Initial release

A01 Nov.08.2010 Add new model 919Vz T9AHMJDTKA1RDN

A02 Dec.02.2010 Add new model 919Vz T9AHMJDLK13ADN

919Sz

T9AHMJDMK1SDAN

T9AHMJDBK1K2DN

919Vz

T9AHMJDLK13ADN

919Pz T9AGMJDBKNK3DN

A03 Dec.14.2010 Add new models

A04 Jan.18.2011 Add new model

A05 Jan.27.2011 Add new model

A06 Mar.29.2011 Add new model 919Vz T9AGSODLKM3ADN

A07 Jul.20, 2011

A08 Sep.15.2011 Add new model 919SZ T9BMSODBKMKPAN

A09 Nov.18,2011 Add new models

Add new models

919Sz T9AGMJDBKMKPAN

919Vz T9AGMJDBKMK2DN

919Vz T9AGMJDEKM6ADN

919Vz T9AHMJDEK16ADN

919PZ

919Vz

919VZ T9BMSODTKM1RDN

919VZ T9AGMJDBKMK2D6

T9BMSODBKNK3DN

T9AGSODEKMACDN

T9BMSODBKAK2DN

T9BMSODEKM6ADN

T9BMSODLKM3ADN

Important Safety Notice

Proper service and repair is important to the safe, reliable operation of all AOC Company Equipment. The service

procedures recommended by AOC and described in this service manual are effective methods of performing service

operations. Some of these service operations require the use of tools specially designed for the purpose. The

special tools should be used when and as recommended.

It is important to note that this manual contains various CAUTIONS and NOTICES which should be carefully read in

order to minimize the risk of personal injury to service personnel. The possibility exists that improper service

methods may damage the equipment. It is also important to understand that these CAUTIONS and NOTICES ARE

NOT EXHAUSTIVE. AOC could not possibly know, evaluate and advise the service trade of all conceivable ways in

which service might be done or of the possible hazardous consequences of each way. Consequently, AOC has not

undertaken any such broad evaluation. Accordingly, a servicer who uses a service procedure or tool which is not

recommended by AOC must first satisfy himself thoroughly that neither his safety nor the safe operation of the

equipment will be jeopardized by the service method selected.

Hereafter throughout this manual, AOC Company will be referred to as AOC.

WARNING

Use of substitute replacement parts, which do not have the same, specified safety characteristics may create shock,

fire, or other hazards.

Under no circumstances should the original design be modified or altered without written permission from AOC.

AOC assumes no liability, express or implied, arising out of any unauthorized modification of design.

Servicer assumes all liability.

FOR PRODUCTS CONTAINING LASER:

DANGER-Invisible laser radiation when open AVOID DIRECT EXPOSURE TO BEAM.

CAUTION-Use of controls or adjustments or performance of procedures other than those specified herein may

result in hazardous radiation exposure.

CAUTION -The use of optical instruments with this product will increase eye hazard.

TO ENSURE THE CONTINUED RELIABILITY OF THIS PRODUCT, USE ONLY ORIGINAL MANUFACTURER'S

REPLACEMENT PARTS, WHICH ARE LISTED WITH THEIR PART NUMBERS IN THE PARTS LIST SECTION OF

THIS SERVICE MANUAL.

Take care during handling the LCD module with backlight unit

-Must mount the module using mounting holes arranged in four corners.

-Do not press on the panel, edge of the frame strongly or electric shock as this will result in damage to the screen.

-Do not scratch or press on the panel with any sharp objects, such as pencil or pen as this may result in damage to

the panel.

-Protect the module from the ESD as it may damage the electronic circuit (C-MOS).

-Make certain that treatment person’s body is grounded through wristband.

-Do not leave the module in high temperature and in areas of high humidity for a long time.

-Avoid contact with water as it may a short circuit within the module.

-If the surface of panel becomes dirty, please wipe it off with a soft material. (Cleaning with a dirty or rough cloth may

damage the panel.)

1. Monitor Specifications

Model number 919Pz

Driving system TFT Color LCD

Viewable Image Size 48.3cm diagoanl

LCD Panel

Resolution

Pixel pitch 0.294mm(H) x 0.294mm(V)

Video R, G, B Analog lnterface & Digital Interface

Separate Sync. H/V TTL

Display Color 16.7M Colors

Dot Clock 135 MHz

Horizontal scan range 30 kHz - 80 kHz

Horizontal scan Size(Maximum) 376.32mm

Vertical scan range 55 Hz - 75 Hz

Vertical scan Size(Maximum) 301.056mm

Optimal preset resolution 1280 x 1024 (60 Hz)

Highest preset resolution 1280 x 1024 (75 Hz)

Plug & Play VESA DDC2B/CI

Input Connector D-Sub 15pin & DVI-D

Input Video Signal

Power Source 100~240VAC, 50/60Hz

Power Consumption

Analog: 0.7Vp-p(standard), 75 OHM, Positive & DVI-D

Digital Interface (TMDS)

Active < 37 W

Standby <1 W

Physical

Characteristics

Environmental

Speakers 2 x 1W

Connector Type 15-pin Mini D-Sub & DVI-D

Signal Cable Type Detachable

Dimensions & Weight:

Height (with base)

Width

Depth

Weight (monitor only)

Weight (with packaging)

Temperature:

Operating 0° to 40°

Non-Operating -25° to 55°

Humidity:

Operating 10% to 85% (non-condensing)

Non-Operating 5% to 93% (non-condensing)

Altitude:

Operating 0~ 3658m (0~ 12000 ft )

415 mm

409 mm

250 mm

5.72 kg

7.37 kg

Non-Operating 0~ 12192m (0~ 40000 ft )

LCD Panel

Model number 919Sz&919Vz

Driving system TFT Color LCD

Viewable Image Size 48.3cm diagoanl

Pixel pitch 0.294mm(H) x 0.294mm(V)

Video

R, G, B Analog lnterface (for 919Sz)

R, G, B Analog lnterface & Digital Interface(for 919Vz)

Separate Sync. H/V TTL

Display Color 16.7M Colors

Dot Clock 135 MHz

Horizontal scan range 30 kHz - 80 kHz

Horizontal scan Size(Maximum) 376.32mm

Vertical scan range 55 Hz - 75 Hz

Vertical scan Size(Maximum) 301.056mm

Optimal preset resolution 1280 x 1024 (60 Hz)

Highest preset resolution 1280 x 1024 (75 Hz)

Plug & Play VESA DDC2B/CI

Resolution

Physical

Characteristics

Input Connector

D-Sub 15pin (for 919Sz)

D-Sub 15pin & DVI-D (for 919Vz)

Analog: 0.7Vp-p(standard), 75 OHM (for 919Sz)

Input Video Signal

Analog: 0.7Vp-p(standard), 75 OHM, Positive & DVI-D

Digital Interface (TMDS) (for 919Vz)

Power Source 100~240VAC, 50/60Hz

Power Consumption

Active < 37 W

Standby < 1 W

Speakers 2 x 1W

Connector Type 15-pin Mini D-Sub & DVI-D (DVI-D for 919Vz)

Signal Cable Type Detachable

Dimensions & Weight:

Height (with base)

Width

Depth

Weight (monitor only)

Weight (with packaging)

409.5 mm

409 mm

210 mm

3.78 kg

5.32 kg

Environmental

Temperature:

Operating 0° to 40°

Non-Operating -25°to 55°

Humidity:

Operating 10% to 85% (non-condensing)

Non-Operating 5% to 93% (non-condensing)

Altitude:

Operating 0~ 3658m (0~ 12000 ft )

Non-Operating 0~ 12192m (0~ 40000 ft )

2. LCD Monitor Description

The LCD monitor will contain a main board, a power board and a key board which house the flat panel control logic,

brightness control logic and DDC.

The power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips

each voltage.

(Include: adapter, inverter, audio)

Power Board

AC-IN

100V-240V

Monitor Block Diagram

CCFL Drive.

Flat Panel and

CCFL backlight

Main Board

Key Board

HOST Computer

RS232 Connector

For white balance

adjustment in factory

mode

Video signal, DDC

3. Operating Instructions

3.1 General Instructions

Press the power button to turn the monitor on or off. The other control knobs are located at front panel of the monitor.

By changing these settings, the picture can be adjusted to your personal preferences.

* The power cord should be connected.

* Press the power button to turn on the monitor. The power indicator will light up.

3.2 Control Buttons

For 919Pz

1 Source(Auto) / Exit

2 Eco mode / -

3. Volume / +

4. Menu / Enter

5. Power Button & Indicator

For 919Sz&919Vz

1 Source(Auto) / Exit

2 Eco mode / -

3. Volume / +

4. Menu / Enter

5. Power Button & Indicator

3.3 OSD Menu

• Press the MENU-button to activate the OSD window.

• Press+ or - to navigate through the functions. Once the desired function is highlighted, press the

MENU-button to activate it.If the function selected has a sub-menu, press + or - again to navigate through

the sub-menu functions.Once the desired function is highlighted, press MENU-button to activate it.

• Press+ or - to change the settings of the selected function. To exit and save, select the exit function. If you

want to adjust any other function, repeat steps 2-3.

• OSD Lock Function: To lock the OSD, press and hold the Menu button while the monitor is off and then

press power button to turn the monitor on. To un-lock the OSD - press and hold the Menu button while the

monitor is off and then press power button to turn the monitor on.

• Eco Mode hot key: Press the Eco key continuously to select the Eco mode of brightness when there is no

OSD (Eco mode hot key may not be available in all models).

• Volume adjustment hot key: When there is no OSD, press Volume (+) to active volume adjustment bar,

press - or + to adjust volume (Only for the models with speakers).

• Source hot key : When the OSD is closed, press Auto/Source button will be Source hot key function (Only

for the models with dual or more inputs) .Press Source button continuously to select the input source

showed in the message bar , press Menu/Enter button to change to the source selected.

• Auto configure hot key: When the OSD is closed, press Auto/Source button continuously about 2 second to

do auto configure.

Function Control Illustration

Luminance Adjust Range Description

Brightness 0-100 Backlight Adjustment

Contrast 0-100 Contrast from Digital-register.

Standard

Text

Standard Mode

Text Mode

Eco mode

Gamma

Internet Mode

Internet

Game Mode

Game

Movie Mode

Movie

Sports Mode

Sports

Gamma1 Adjust to Gamma1

Gamma2 Adjust to Gamma 2

Gamma3 Adjust to Gamma 3

Disable dynamic contrast ratio

Enable dynamic contrast ratio

DCR

Image Setup

Off

Adjust picture Clock to reduce

Clock 0-100

Vertical-Line noise.

Adjust Picture Phase to reduce

Phase 0-100

Horizontal-Line noise

Adjust the vertical position of the

H.Position 0-100

picture.

V.Position 0-100

Color Temp.

Warm

6500K

Normal

7300K

Cool

9300K

sRGB

Red Red Gain from Digital-register

User

Green Green Gain Digital-register.

Blue Blue Gain from Digital-register

Color Boost

Adjust the horizontal position of

the picture.

Recall Warm Color Temperature

from EEPROM.

Recall Normal Color

Temperature from EEPROM.

Recall Cool Color Temperature

from EEPROM.

Recall SRGB Color Temperature

from EEPROM.

Full Enhance on or off

Disable or Enable Full Enhance

Mode

Disable or Enable Nature Skin

Nature Skin on or off

Mode

Disable or Enable Green Field

Green Field on or off

Mode

Sky-blue on or off Disable or Enable Sky-blue Mode

Disable or Enable AutoDetect

AutoDetect on or off

Mode

Demo on or off Disable or Enable Demo

Picture Boost

Frame Size 14-100 Adjust Frame Size

Brightness 0-100 Adjust Frame Brightness

Contrast 0-100 Adjust Frame Contrast

H. position 0-100 Adjust Frame horizontal Position

V.position 0-100 Adjust Frame vertical Position

Bright Frame on or off Disable or Enable Bright Frame

OSD Setup

Adjust the vertical position of

H.Position 0-100

OSD

V.Position 0-100

Adjust the horizontal position of

OSD

Timeout 5-120 Adjust the OSD Timeout

Transparence 0-100 Adjust the transparence of OSD

Language

Extra

Input Select

Auto Config yes or no

Image Ratio wide or 4:3

DDC-CI yes or no Turn ON/OFF DDC-CI Support

Off Timer 0~24hours

Information

Auto Select to Auto Detect input signal

Analog

Digital

Select the OSD language

Select Analog Sigal Source as

Input

Select Digital Sigal Source as

Input

uto adjust the picture to default

Select wide or 4:3 format for

display

Select timing to turn off the

monitor.

Show the information of the main

image and sub-image source

Reset

Reset yes or no Reset the menu to default

Exit

Exit Exit the main OSD

Notes:

1) If the product has only one signal input, the item of "Input Select" is disable to adjust.

2) If the product screen size is 4:3 or input signal resolution is wide format, the item of "Image Ratio" is disalbe to

adjust.

3) One of DCR, Color Boost, and Picture Boost functions is active, the other two functions is turned off accordingly.

4. Input/Output Specification

4.1 Input Signal Connector

Analog connector

Pin Number 15-Pin Side of the Signal Cable

1 Video-Red

2 Video-Green

3 Video-Blue

4 N.C.

5 Detect Cable

6 GND-R

7 GND-G

8 GND-B

9 +5V

10 Ground

11 N.C.

12 DDC-Serial data

13 H-sync

14 V-sync

15 DDC-Serial clock

DVI connector (FOR 919Pz&919Vz)

Pin No. Signal Name Pin No. Signal Name Pin No. Signal Name

1 TMDS Data 2- 9 TMDS Data 1- 17 TMDS Data 0-

2 TMDS Data 2+ 10 TMDS Data 1+ 18 TMDS Data 0+

3 TMDS Data 2/4 Shield 11 TMDS Data 1/3 Shield 19 TMDS Data 0/5 Shield

4 TMDS Data 4- 12 TMDS Data 3- 20 TMDS Data 5-

5 TMDS Data 4+ 13 TMDS Data 3+ 21 TMDS Data 5+

6 DDC Clock 14 +5V Power 22 TMDS Clock Shield

7 DDC Data 15 Ground(for+5V) 23 TMDS Clock +

8 N.C. 16 Hot Plug Detect 24 TMDS Clock -

4.2 Factory Preset Display Modes

Stand Resolution Horizontal Frequency(kHz) Vertical Frequency(Hz)

VGA 640×480@60Hz DMT 31.469 59.940

Mac-mode 640×480@67Hz MAC 35.000 66.667

VGA 640×480@72Hz DMT 37.861 72.809

VGA 640×480@75Hz DMT 37.500 75.000

Dos-mode 720×400@70Hz DOS 31.469 70.087

SVGA 800×600@56Hz DMT 35.156 56.250

SVGA 800×600@60Hz DMT 37.879 60.317

SVGA 800×600@72Hz DMT 48.077 72.188

SVGA 800×600@75Hz DMT 46.875 75.000

Mac-mode 832×624@75Hz MAC 49.725 74.500

XGA 1024×768@60Hz DMT 48.363 60.004

XGA 1024×768@70Hz DMT 56.476 70.069

IBM-mode 1024×768@72Hz 57.500 72.074

XGA 1024×768@75Hz DMT 60.023 75.029

Mac-mode 1024×768@75Hz MAC 60.241 74.927

SXGA 1280×1024@60Hz DMT 63.981 60.020

SXGA 1280×1024@75Hz DMT 79.976 75.025

4.3 Panel Specification

4.3.1 General Features

HannStar Display model HSD190MEN4-A* is a color active matrix thin film transistor (TFT) liquid crystal display

(LCD) that uses amorphous silicon TFT as a switching device. This model is composed of a TFT LCD panel, the

voltage reference, common voltage, DC-DC converter, column, and row driver circuit. This TFT LCD has a 19-inch

diagonally measured active display area with SXGA resolution (1024 vertical by 1280 horizontal pixel array).

4.3.2 Display Characteristics

4.3.3 Electrical Characteristics

TFT LCD Module:

Back-Light Unit

4.3.4 Optical Characteristics

(

5. Block Diagram

5.1 Main Board

DVI for 919Pz&919Vz

FLASH ROM

MX25L2026MI

U402)

14.31818MHZ

(X401)

Scalar IC TSUMO58QWHL-LF

(Include ADC, OSD, MCU)

D-Sub Connector

(CN101)

(U401)

Panel Interface

(CN301)

DVI Connector

(CN102)

Key Control Interface

(CN401)

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