AOC 919SWA User Manual
19" LCD Color Monitor AOC 919Swa
Service
Service
Service
Horizontal Frequency
30-80 kHz
TABLE OF CONTENTS
Description Page Description Page
Table Of Contents.......…….................……...........…........1
Revision List.…........................………................……......2
1. Monitor Specification.................................………........3
2. LCD Monitor Description…………………………….......4
3. Operation Instruction…………...................…...........5
3.1 General Instructions.....................................…...........5
3.2 Control Button……………………………..……...........5
3.3 Adjusting the Picture...........................…............5
4. Input/Output Specification............……………............8
4.1 Input Signal Connector............…..……................8
4.2 Factory Preset Display Modes.........................8
5 Panel Specification.....…………………........................9
5.1 Display Characteristics………………………………9
5.2 Optical Characteristics………………………………..10
5.3 Electrical Characteristics……………….……………..11
6.Block Diagram…….…................………….........13
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
6.1 Software Flow Chat…….…..........………….........13
6.2 Electrical Block Diagram………...………...…......15
7. Schematic……………………………………………. 17
7.1 Main Board…………..............................................17
7.2 Power Board....……………....................................21
8. PCB Layout..………….......................................24
8.1 Main Board……………......................................24
8.2 Power Board…......................................................26
8.3 Key Board……………….....................................28
9. Maintainability……….......................................28
9.1. Equipments and Tools Requirement.....................29
9.2. Trouble Shooting…………....................................30
10. White-Balance, Luminance adjustment.................36
11.Monitor Exploded View……..……………............38
12. BOM List....……........................................... .........40
1
19" LCD Color Monitor AOC 919Swa
Revision List
Revision Date Revision History Remark
T99LHDDBWKA1ANE
Initial release
T992HDDBWKA2ANE
A00 Dec.-25-2009
IVO M190MWW3
Panel list
TPV TPM190A1
2
19" LCD Color Monitor AOC 919Swa
1. Monitor Specifications
919Swa
Active < 37 W
Standby < 2 W
LCD Panel
Resolution
Physical Characteristics
Environmental
Model name
Driving system TFT Color LCD
Viewable Image Size 48.1cm diagoanl
Pixel pitch 0.2835mm(H) x 0.2835mm(V)
Video R, G, B Analog lnterface
Separate Sync. H/V TTL
Display Color 16.7M Colors
Dot Clock 135 MHz
Horizontal scan range 30 kHz - 83 kHz
Horizontal scan Size(Maximum) 408.24mm
Vertical scan range 55 Hz - 75 Hz
Vertical scan Size(Maximum) 255.15mm
Optimal preset resolution 1440 x 900 (60 Hz)
Plug & Play VESA DDC2B/CI
Input Connector D-Sub 15pin
Input Video Signal Analog: 0.7Vp-p(standard), 75 OHM
Power Source 100-240V~, 50/60Hz
Power Consumption
Speakers 2 x 1W
Connector Type 15-pin Mini D-Sub
Signal Cable Type Detachable
Dimensions & Weight:
Height (with base) 365 mm
Width 439mm
Depth 190 mm
Weight (monitor only) 3.7 kg
Weight (with packaging) 5.2kg
Temperature:
Operating 0° to 40°
Non-Operating -20°to 60°
Humidity:
Operating 10% to 85% (non-condensing)
Non-Operating 5% to 80% (non-condensing)
Altitude:
Operating 0~ 3000m (0~ 10000 ft )
Non-Operating 0~ 5000m (0~ 15000 ft )
3
19" LCD Color Monitor AOC 919Swa
2. LCD Monitor Description
The LCD MONITOR will contain a main board, a power board, an audio 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.
PWPC board
(Include: adapter, inverter)
AC-IN
100V-240V
Monitor Block Diagram
CCFL Drive.
Main Board
Keyboard
Flat Panel and
CCFL backlight
HOST Computer
RS232 Connector
For white balance
adjustment in factory
mode
Video signal DDC
4
19" LCD Color Monitor AOC 919Swa
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
(See Figure ). 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
1. Auto / Exit
2. Eco mode / -
3. Volume / +
4. Menu / Enter
5. Power Button & Indicator
3.3 Adjusting the Picture
• 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-buttonto 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).
• Auto configure hot key: When the OSD is closed, press Auto/Source button continuously about 2 second to
do auto configure.
Luminance Adjust Range Description
Brightness 0-100 Backlight Adjustment
Contrast 0-100 Contrast from Digital-register.
Eco mode
Standard
Text Mode
5
Standard Mode
19" LCD Color Monitor AOC 919Swa
Text
Internet
Game
Movie
Sports
Gamma
DCR
Image Setup
Clock 0-100
Phase 0-100
H.Position 0-100
V.Position 0-100
Color Temp.
Warm
Normal
Cool
sRGB
User
Color Boost
Full Enhance on or off
Nature Skin on or off
Green Field on or off
Sky-blue on or off
Gamma1 Adjust to Gamma1
Gamma2 Adjust to Gamma 2
Gamma3 Adjust to Gamma 3
Off
On
6500K
7300K
9300K
Red Red Gain from Digital-register
Green Green Gain Digital-register.
Blue Blue Gain from Digital-register
Internet Mode
Game Mode
Movie Mode
Sports Mode
Disable dynamic contrast ratio
Enable dynamic contrast ratio
Adjust picture Clock to reduce
Vertical-Line noise.
Adjust Picture Phase to reduce
Horizontal-Line noise
Adjust the verticalposition of the
picture.
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.
Disable or Enable Full Enhance
Mode
Disable or Enable Nature Skin
Mode
Disable or Enable Green Field
Mode
Disable or Enable Sky-blue
Mode
6
19" LCD Color Monitor AOC 919Swa
A
AutoDetect on or off
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
V.position
Bright Frame on or off Disable or Enable Bright Frame
OSD Setup
H.Position 0-100
V.Position 0-100
Timeout 5-120 Adjust the OSD Timeout
Transparence 0-100 Adjust the transparence of OSD
Off Timer Select the OSD language
Language 0~24hours
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
Information
Reset
0-100 Adjust Frame horizontal Position
0-100 Adjust Frame vertical Position
Analog
Disable or Enable AutoDetect
Mode
Adjust the verticalposition of
OSD
Adjust the horizontal position of
OSD
Select timing to turn off the
monitor.
Select Analog Sigal Source as
Input
uto adjust the picture to default
Select wide or 4:3 format for
display
Show the information of the
main image and sub-image
source
Reset yes or no Reset the menu to default
Exit
Exit Exit the main OSD
LED Indicator
Status LED Color
Full Power Mode Green or Blue
Active-off Mode Orange or red
7
19" LCD Color Monitor AOC 919Swa
4. Input/Output Specification
4.1 Input Signal Connector
Pin Number 15-Pin Side of the Signal Cable Pin Number 15-Pin Side of the Signal Cable
1 Video-Red 9 +5V
2 Video-Green 10 Ground
3 Video-Blue 11 N.C.
4 N.C. 12 DDC-Serial data
5 Detect Cable 13 H-sync
6 GND-R 14 V-sync
7 GND-G 15 DDC-Serial clock
8 GND-B
4.2 Factory Preset Display Modes
HORIZONTAL
STAND RESOLUTION
Dos-mode 720 x 400 31.47 70
VGA 640 x 480 31.47 60
VGA 640 x 480 37.5 75
SVGA 800 x 600 37.879 60
SVGA 800 x 600 46.875 75
XGA 1024 x 768 48.363 60
XGA 1024 x 768 56.476 70
XGA 1024 x 768 60.02 75
XGA 1024 x 768 48.78 60
XGA 1024 x 768 60.241 75
SXGA 1280 x 1024 64 60
SXGA 1280 x 1024 80 75
WXGA 1440×900 55.93 60
FREQUENCY(kHZ)
VERTICAL
FREQUENCY(Hz)
8
19" LCD Color Monitor AOC 919Swa
5 Panel Specification
5.1 Display Characteristics
M190MWW3
The M190MWW3 is a color active matrix thin film transistor (TFT) liquid crystal display (LCD) that uses amorphous
silicon TFT as a switching device. It is composed of a TFT LCD panel, a timing controller, voltage reference,
common voltage, driver DC-DC converter, column driver, and row driver circuit. This TFT LCD has a 19-inch
diagonally measured active display area with WXGA+ resolution (1440 vertical by 900 horizontal pixel array).
TPM190A1
TPM190A1(M190A1-P0A) is a 19” wide TFT Liquid Crystal Display module with 4 CCFL Backlight unit and 30 pins
2ch-LVDS interface. This module supports 1440 x 900 WXGA+ mode and can display 16.7M colors. The front metal
frame for backlight is not built in, and need monitor front plastic bezel instead.
9
19" LCD Color Monitor AOC 919Swa
Note (1) Please refer to the attached drawings for more information of front and back outline dimensions.
5.2 Optical Characteristics
M190MWW3
TPM190A1
10
19" LCD Color Monitor AOC 919Swa
5.3 Electrical Characteristics
1.TFT LCD Module:
M190MWW3
Note:
A. If it exceeds MIN/MAX values, then "CCFL Life", "ON/OFF Cycle", and "SAFETY" will not be guaranteed.
B. CCFL Frequency should be carefully determined to avoid interference between inverter and TFT LCD.
C. The voltage over specified value (VCCFLi) should be applied to the lamp more than 1 second after startup.
Otherwise, the lamp may not be turned on. The used lamp current is the lamp typical current. The inverter should be
able to give out a power that has a generating capacity of over 1560 voltage. Lamp units need to over 1560 voltage
for ignition.
TPM190A1
2.Back Light Unit:
M190MWW3
11
19" LCD Color Monitor AOC 919Swa
TPM190A1
12
19" LCD Color Monitor AOC 919Swa
6. Block Diagram
6.1 Software Flow Chat
1
2
N
4
5
Y
6
7
Y
N
N
3
18
9
10
Y
N
N
12
Y
14
19
N
11
13
15
17
N
Y
N
Y
16
Y
13
19" LCD Color Monitor AOC 919Swa
REMARK:
1) MCU initialize.
2) Is the EPROM blank?
3) Program the EPROM by default values.
4) Get the PWM value of brightness from EPROM.
5) Is the power key pressed?
6) Clear all global flags.
7) Are the AUTO and SELECT keys pressed?
8) Enter factory mode.
9) Save the power key status into EPROM.Turn on the LED and set it to green color.Scalar initializes.
10) In standby mode?
11) Update the lifetime of back light.
12) Check the analog port, are there any signals coming?
13) Does the scalar send out an interrupt request?
14) Wake up the scalar.
15) Are there any signals coming from analog port?
16) Display "No connection Check Signal Cable" message. And go into standby mode after the message
disappear.
17) Program the scalar to be able to show the coming mode.
18) Process the OSD display.
19) Read the keyboard. Is the power key pressed?
14
19" LCD Color Monitor AOC 919Swa
(
(
)
6.2 Electric Block Diagram
6.2.1 Main Board
FLASH MEMORY
SST25LF020A-33-4C-SAE
U402)
Crystal 24.576MHz
(X401)
Connector
Scalar HX6803-A000LAG
(Include :MCU,ADC,OSD etc)
D-Sub
(U401)
Panel Interface
(CN405)
Key Control
Interface
CN408
EEPROM
M24C04-WMN6TP
DDC1_SDA
DDC1_SCL
M24C02-WMN6TP
(CN101)
EEPROM
(U101)
(U406)
15
Loading...