AOC 919swa Service Manual
Have a look at the manual AOC 919swa Service Manual online for free. It’s possible to download the document as PDF or print. UserManuals.tech offer 65 AOC manuals and user’s guides for free. Share the user manual or guide on Facebook, Twitter or Google+.
19 LCD Color Monitor AOC 919Swa
1
Service
Service
Service
Horizontal Frequency
30-80 kHz
TABLE OF CONTENTS
Description Page Description Page
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.
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
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
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING
19 LCD Color Monitor AOC 919Swa
2
Revision List
Revision Date Revision History Remark
T99LHDDBWKA1ANE
Initial release
T992HDDBWKA2ANE
IVO M190MWW3
A00 Dec.-25-2009
Panel list
TPV TPM190A1
19 LCD Color Monitor AOC 919Swa 3 1. Monitor Specifications Model name 919Swa 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 LCD Panel 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 Active < 37 W Power Consumption Standby < 2 W Resolution 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 Physical Characteristics 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 ) Environmental Non-Operating 0~ 5000m (0~ 15000 ft )
19 LCD Color Monitor AOC 919Swa 4 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. HOST Computer AC-IN 100V-240V PWPC board (Include: adapter, inverter) Flat Panel and CCFL backlight Main Board RS232 Connector For white balance adjustment in factory mode CCFL Drive. Video signal DDC Monitor Block Diagram Keyboard
19 LCD Color Monitor AOC 919Swa 5 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. Standard Standard Mode Eco mode Text Mode
19 LCD Color Monitor AOC 919Swa 6 Text Internet Internet Mode Game Game Mode Movie Movie Mode Sports Sports Mode Gamma1 Adjust to Gamma1 Gamma2 Adjust to Gamma 2 Gamma Gamma3 Adjust to Gamma 3 Off Disable dynamic contrast ratio DCR On Enable dynamic contrast ratio Image Setup Clock 0-100 Adjust picture Clock to reduce Vertical-Line noise. Phase 0-100 Adjust Picture Phase to reduce Horizontal-Line noise H.Position 0-100 Adjust the verticalposition of the picture. V.Position 0-100 Adjust the horizontal position of the picture. Color Temp. Warm 6500K Recall Warm Color Temperature from EEPROM. Normal 7300K Recall Normal Color Temperature from EEPROM. Cool 9300K Recall Cool Color Temperature from EEPROM. sRGB Recall SRGB Color Temperature from EEPROM. Red Red Gain from Digital-register Green Green Gain Digital-register. User Blue Blue Gain from Digital-register Color Boost Full Enhance on or off Disable or Enable Full Enhance Mode Nature Skin on or off Disable or Enable Nature Skin Mode Green Field on or off Disable or Enable Green Field Mode Sky-blue on or off Disable or Enable Sky-blue Mode
19 LCD Color Monitor AOC 919Swa 7 AutoDetect on or off Disable or Enable AutoDetect 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 H.Position 0-100 Adjust the verticalposition of 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 Off Timer Select the OSD language Language 0~24hours Select timing to turn off the monitor. Extra Input Select Analog Select Analog Sigal Source as Input Auto Config yes or no Auto adjust the picture to default Image Ratio wide or 4:3 Select wide or 4:3 format for display DDC-CI yes or no Turn ON/OFF DDC-CI Support Information 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 LED Indicator Status LED Color Full Power Mode Green or Blue Active-off Mode Orange or red
19 LCD Color Monitor AOC 919Swa 8 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 STAND RESOLUTION HORIZONTAL FREQUENCY(kHZ) VERTICAL FREQUENCY(Hz) 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
19 LCD Color Monitor AOC 919Swa 9 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.
19 LCD Color Monitor AOC 919Swa 10 Note (1) Please refer to the attached drawings for more information of front and back outline dimensions. 5.2 Optical Characteristics M190MWW3 TPM190A1