17″LCD Color Monitor |
AOC WA17W |
Service
Service
Service
Horizontal Frequency
55.5 kHz - 70.6 kHz
TABLE OF CONTENTS
Description |
Page Description |
Page |
Table Of Contents.......……..............................…........1
Revision List.…........................................……......2
Important Safety Notice.…….........................……......3
1.Monitor Specification..............................………........4
2.LCD Monitor Description…………………………….......5
3.Operation Instruction……..………...............……...........6 3.1.General Instructions………..........................…...........6 3.2.Control Button…………….…..............……...............6 3.3.Adjusting the Picture...........................…............7 4.Input/Output Specification............……………............10 4.1.Input Signal Connector............………….................10
4.2.Factory Preset Display Modes.........................11
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4.3.Panel Specification.....……...……………..................12
5.Block Diagram………...................…………................14
5.1.Software Flow Chart……………………................14
5.2.Electrical Block Diagram………………..…............16 |
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6.Schematic…………………...................................…18 |
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6.1.Main Board........................................................ |
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6.2. Power Board....…..….….......................................23 |
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7.PCB Layout..……………….......................................26 |
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7.1.Main Board……..………........................................26 |
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7.2.Power Board………...............................................28 |
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7.3 Key Board…………...…….....................................30 |
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8. Maintainability……………........................................31 |
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8.1.Equipments and Tools Requirement...................... |
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8.2.Trouble Shooting………….....................................32 |
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9.White-Balance Luminance adjustment…….….....38 |
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10.Monitor Exploded View…………………….….........40 |
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11.BOM List….........................................................41 |
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
1
17″LCD Color Monitor |
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AOC WA17W |
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Revision List |
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Revision |
Date |
Revision History |
TPV Model |
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A00 |
Mar.-14-2008 |
First Version Release |
T77HRTNCMWPUDN |
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2
17″LCD Color Monitor |
AOC WA17W |
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.)
3
17″LCD Color Monitor |
AOC WA17W |
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1. Monitor Specifications |
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Items |
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Descriptions |
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Driving system |
TFT Color LCD |
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Type |
HSD170MGW1-B00 |
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LCD Panel |
Size |
43.2cm (17") |
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Pixel pitch |
0.255mm( H )x 0.255mm( V ) |
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Viewable angle |
160˚ (H) 160˚ (V) (TYPE) |
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Response time (type) |
5 ms |
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Video |
R,G,B Analog Interface |
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Digital Interface |
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Connector |
15-pin D-Sub, 24pin DVI |
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Input |
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Analog:0.7Vp-p(standard),75 OHM, Positive |
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Video Signal |
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Digital signal |
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Sync. Type |
H/V TTL |
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H-Frequency |
55.5 kHz - 70.6 kHz |
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V-Frequency |
55 Hz - 75 Hz |
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Power Consumption |
ON Mode |
≤37W |
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OFF Mode |
≤1W |
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Contrast Ratio |
600:1 |
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Dot Clock |
135 MHz |
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White Luminance |
300cd/m2 |
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Max. Resolution |
1440 x 900 (60 Hz) |
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Display Color |
16.2M colors |
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Plug & Play |
VESA DDC2BTM |
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Power Source |
100~240VAC,47~63Hz |
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Weight (monitor only) |
3.1 kg |
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Environmental |
Operating Temp: 5°C to 35°C |
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Storage Temp: -20°C to 60°C |
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Considerations |
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Operating Humidity: 10% to 85% |
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Regulations |
cULus/FCC/CE |
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4
17″LCD Color Monitor |
AOC WA17W |
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.
Monitor Block Diagram
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CCFL Drive. |
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Flat Panel and |
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CCFL backlight |
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RS232 Connector |
Power Board |
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Main Board |
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For white balance |
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(Include: adapter, inverter) |
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adjustment in factory |
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mode |
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Key Board |
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AC-IN |
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Video signal, DDC |
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100V-240V |
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HOST Computer |
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5
17″LCD Color Monitor |
AOC WA17W |
3. Operating Instructions
3.1 General Instructions
Press the power button to turn the monitor on or off. The control buttons 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.
-Connect the video cable from the monitor to the video card.
-Press the power button to turn on the monitor, the power indicator will light up.
3.2Control Buttons
1.Auto Adjust button / Exit
2.ECO mode/-
3.+/ Volume
4.MENU / ENTER
5.Power Button
6.LED
6
17″LCD Color Monitor |
AOC WA17W |
3.3 Adjusting the Picture
OSD Settings
1.Press the MENU-button to activate the OSD window.
2.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.
3.Press < or > to change the settings of the selected function.
4.To exit and save, select the exit function. If you want to adjust any other function, repeat steps 2-3.
OSD functions |
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Main Menu |
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Main Menu Item |
Sub Menu Item |
Sub Menu |
Description |
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Icon |
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Brightness |
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Backlight Adjustment |
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Contrast |
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Contrast from Digital-register. |
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Standard |
Standard Mode |
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Text |
Text Mode |
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Eco |
Internet |
Internet Mode |
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Game |
Game Mode |
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Luminance |
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Movie |
Movie Mode |
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Sports |
Sports Mode |
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Gamma1 |
Adjust to Gamma1 |
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Gamma |
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Gamma2 |
Adjust to Gamma 2 |
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Gamma3 |
Adjust to Gamma 3 |
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DCR |
Off |
Disable dynamic contrast ratio |
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On |
Enable dynamic contrast ratio |
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7
17″LCD Color Monitor |
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AOC WA17W |
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Adjust picture Clock to reduce Vertical-Line |
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Clock |
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noise. |
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Adjust Picture Phase to reduce Horizontal-Line |
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Focus |
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Image Setup |
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noise |
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H.Position |
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Adjust the horizontal position of the picture. |
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V.Position |
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Adjust the vertical position of the picture. |
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Warm |
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Recall Warm Color Temperature from EEPROM. |
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Recall Normal Color Temperature from |
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Normal |
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EEPROM. |
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Cool |
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Recall Cool Color Temperature from EEPROM. |
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sRGB |
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Recall SRGB Color Temperature from EEPROM. |
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Color Temp. |
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User-B |
Blue Gain from Digital-register |
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User-G |
Green Gain Digital-register. |
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User |
User-R |
Red Gain from Digital-register |
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User-Y |
Yellow Gain from Digital-register |
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User-C |
Cyan Gain from Digital-register |
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User-M |
Magenta Gain from Digital-register |
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Full Enhance |
on or off |
Disable or Enable Full Enhance Mode |
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Nature Skin |
on or off |
Disable or Enable Nature Skin Mode |
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Color Boost |
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Green Field |
on or off |
Disable or Enable Green Field Mode |
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Sky-blue |
on or off |
Disable or Enable Sky-blue Mode |
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AutoDetect |
on or off |
Disable or Enable AutoDetect Mode |
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Demo |
on or off |
Disable or Enable Demo |
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Frame Size |
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Adjust Frame Size |
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Brightness |
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Adjust Frame Brightness |
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Contrast |
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Adjust Frame Contrast |
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Picture Boost |
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Hue |
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Adjust Frame Hue |
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Saturation |
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Adjust Frame Saturation |
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Position |
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Adjust Frame Position |
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Bright Frame |
on or off |
Disable or Enable Bright Frame |
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H.Position |
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Adjust the horizontal position of OSD |
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V.Position |
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Adjust the vertical position of OSD |
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OSD Setup |
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Timeout |
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Adjust the OSD Timeout |
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Language |
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Select the OSD language |
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8
17″LCD Color Monitor |
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AOC WA17W |
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Input Select |
Digital |
Select Digital Signal Source as Input |
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Analog |
Select Analog Signal Source as Input |
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Auto Config |
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Auto adjust the picture to default |
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Extra |
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DDC/CI |
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Turn ON/OFF DDC/CI Support |
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Reset |
yes or no |
Reset the menu to default |
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Show the information of the main image and |
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Information |
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sub-image source |
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9
17″LCD Color Monitor |
AOC WA17W |
4. Input/output Specification
4.1 Input Signal Connector
D-SUB connector
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10 |
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11 |
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Pin No. |
Description |
Pin No. |
Description |
1. |
Red |
9. |
+5V |
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Green |
10. |
Detect Cable |
3. |
Blue |
11. |
RXD |
4. |
TXD |
12. |
DDC-Serial Data |
5. |
Ground |
13. |
H-Sync |
6. |
R-Ground |
14. |
V-Sync |
7. |
G-Ground |
15. |
DDC-Serial Clock |
8. |
B-Ground |
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DVI connector
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Pin No. |
Signal Name |
Pin No. |
Signal Name |
Pin No. |
Signal Name |
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1. |
TMDS Data 2- |
9. |
TMDS Data 1- |
17. |
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TMDS Data 0- |
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2. |
TMDS Data 2+ |
10. |
TMDS Data 1+ |
18. |
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TMDS Data 0+ |
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3. |
TMDS Data 2/4 Shield |
11. |
TMDS Data 1/3 Shield |
19. |
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TMDS Data 0/5 Shield |
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4. |
TMDS Data 4- |
12. |
TMDS Data 3- |
20. |
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TMDS Data 5- |
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5. |
TMDS Data 4+ |
13. |
TMDS Data 3+ |
21. |
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TMDS Data 5+ |
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6. |
DDC Clock |
14. |
+5V Power |
22. |
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TMDS Clock Shield |
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7. |
DDC Data |
15. |
Ground(for+5V) |
23. |
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TMDS Clock + |
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8. |
N.C. |
16. |
Hot Plug Detect |
24. |
|
TMDS Clock - |
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10
17″LCD Color Monitor |
|
|
AOC WA17W |
|||
4.2. Factory Preset Display Modes |
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Standard |
|
Resolution |
Horizontal |
Vertical |
|
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Frequency |
Frequency |
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||
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||
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Dos-mode |
|
720 × 400 |
31.47kHz |
70Hz |
|
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|
|
640x480 |
31.469kHz |
59.94 Hz |
|
|
VGA |
|
640x480 |
37.861 kHz |
72.809 Hz |
|
|
|
|
640x480 |
37.5 kHz |
75 Hz |
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|
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|
800x600 |
35.156 kHz |
56.25 Hz |
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SVGA |
|
800x600 |
37.879 kHz |
60.317 Hz |
|
|
|
800x600 |
48.077 kHz |
72.188 Hz |
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|
800x600 |
46.875 kHz |
75 Hz |
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|
|
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1024x768 |
48.363 kHz |
60.004 Hz |
|
|
XGA |
|
1024x768 |
56.476 kHz |
70.069 Hz |
|
|
|
|
1024x768 |
60.023 kHz |
75.029 Hz |
|
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|
|
1152x864 |
67.5 kHz |
75 Hz |
|
|
WXGA |
|
1440x900 |
55.935 kHz |
59.887 Hz |
|
|
|
|
1440x900 |
70.635 kHz |
75 Hz |
|
11
17″LCD Color Monitor |
AOC WA17W |
4.3 Panel Specification
HannStar Display model HSD170MGW1-B00 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, a driving circuit and a back light system. This TFT LCD has a 17.0 inch diagonally measured active display area with XGA resolution (900 vertical by 1440 horizontal pixel array) and can display up to 16.2M (6-bit+FRC) colors.
4.3.1 Features
_ 17.0 WXGA+ for Monitor application _ High Resolution: 1440*900
_ 2-ch LVDS interface system _ LCD Timing Controller
_ Wide Viewing Angle _ RoHS compliance
4.3.2 Display Characteristics
4.3.3 Electrical Characteristics
TFT LCD Module
12
17″LCD Color Monitor |
AOC WA17W |
Backlight Unit
4.3.4 Optical Characteristics
Measuring Condition
_ Measuring surrounding: dark room
_ Lamp current IBL: 7.5±0.1mA, lamp freq. FL=50 KHz, Inverter: TDK TBD315NR-1 _ VDD=5.0V, fV=60Hz
_ Ambient temperature: 25±2oC _ 30min. Warm-up time.
13
17” LCD Color Monitor |
AOC WA17W |
5. Block Diagram
5.1 Software Flow Chat
1
2 |
Y |
3 |
|
|
N |
4 |
|
5 |
N |
|
|
|
Y |
6 |
|
|
7 |
N |
|
8 |
|
|
|
Y |
|
9 |
|
|
1 |
N |
|
11 |
|
|
Y |
|
|
N |
13 |
N |
12 |
|
|
Y |
Y |
|
14 |
15 |
N |
16 |
||
|
Y |
|
|
17 |
|
|
N |
18 |
19 |
Y
14