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17" LCD Color Monitor AOC 719Pa

Service
Service
Service




Horizontal Frequency
31-80 KHz
TABLE OF CONTENTS
Description Page Description Page
Table Of Contents......................................................1 5.2. Electrical Block Diagram.............................18
Revision List........................................................2 6. Schematic.....................................................20
Important Safety Notice.....................................3 6.1. Main Board...................................................20
1.Monitor Specification...............................................4 6.2. Power Board.............................................25
2.LCD Monitor Description........................................6 6.3. Key Board...............................................28
3.Operation Instruction............................................7 7. PCB Layout....................................................29
3.1.General Instructions.........................................7 7.1. Main Board.................................................29
3.2.Control Button......................................................7 7.2. Power Board..........................................31
3.3.OSD Menu.............................................................8 7.3. Key Board...................................................34
4. Input/Output Specification.......................................11 8. Maintainability................................................35
4.1. Input Signal Connector.........................................11 8.1. Equipments and Tools Requirement..............35
4.2. Power Supply Requirements...............................12 8.2. Trouble Shooting.......................................36
4.3. Factory Preset Display Modes...............................12 9. White-Balance, Luminance adjustment............42
4.4. Panel Specification............................................13 10. Monitor Exploded View..............................44
5. Block Diagram........................................................16 11. BOM List................................................45
5.1. Software Flow Chart.........................................16

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




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17" LCD Color Monitor AOC 719Pa
Revision List

Version Release Date Revision History TPV Model Name

A00 July.07.2008 Initial release T78SRHDBK1A1DN




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17" LCD Color Monitor AOC 719Pa
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.)




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17" LCD Color Monitor AOC 719Pa
1. Monitor Specifications

Model number 719Pa

Driving system TFT Color LCD

Viewable Image Size 432mm diagoanl

Pixel pitch 0.264mm(H) x 0.264mm(V)
LCD Panel
Video R, G, B Analog lnterface & Digital Interface

Separate Sync. H/V TTL

Display Color 16.7M Colors

Dot Clock 54 MHz

Horizontal scan range 31 kHz - 80 kHz

Horizontal scan Size(Maximum) 337.920mm

Vertical scan range 56 Hz - 75 Hz

Vertical scan Size(Maximum) 270.336mm

Optimal preset resolution 1280 x 1024 (60 Hz)

Highest preset resolution 1280 x 1024 (75 Hz)

Plug & Play VESA DDC2B/CI
Resolution
Input Connector D-Sub 15pin & DVI-D

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

Power Source 100~240VAC, 50/60Hz
Active < 37 W
Power Consumption
Standby < 2 W
Speakers 1.5 W x 2
Connector Type 15-pin Mini D-Sub & 24 pin DVI-D

Signal Cable Type Detachable

Dimensions & Weight

Physical Height (with base) 392.5mm/ 498mm
Characteristics Width 371.5 mm

Depth 250 mm

Weight (monitor only) 5.65kg

Weight (with packaging) 7.1 kg

Environmental Temperature

Operating 0