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19" LCD Color Monitor AOC 919Swa
Service
Service
Service
Horizontal Frequency
30-80 kHz
TABLE OF CONTENTS
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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
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19" LCD Color Monitor AOC 919Swa 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) LCD Panel 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 Opt
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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. Monitor Block Diagram Flat Panel and CCFL Drive. CCFL backlight PWPC board
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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.
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19" LCD Color Monitor AOC 919Swa Text Internet Mode Internet Game Mode Game Movie Mode Movie Sports Mode Sports Gamma1 Adjust to Gamma1 Gamma Gamma2 Adjust to Gamma 2 Gamma3 Adjust to Gamma 3 Off Disable dynamic contrast ratio DCR On Enable dynamic contrast ratio Image Setup Adjust picture Clock to reduce Clock 0-100 Vertical-Line noise. Adjust Picture Phase to reduce Phase 0-100 Hori
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19" LCD Color Monitor AOC 919Swa 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
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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 VERTICAL STAND RESOLUTION FREQUENCY(kHZ)
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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 displ
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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
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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
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19" LCD Color Monitor AOC 919Swa TPM190A1 12
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19" LCD Color Monitor AOC 919Swa 6. Block Diagram 6.1 Software Flow Chat 1 Y 2 3 N 4 N 5 Y 6 N 7 8 Y 9 N 10 11 Y N N 12 13 Y Y N 14 15 16 Y 17 N 19 18 Y 13
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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 lig
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19" LCD Color Monitor AOC 919Swa 6.2 Electric Block Diagram 6.2.1 Main Board Crystal 24.576MHz Panel Interface (X401) (CN405) Key Control Scalar HX6803-A000LAG FLASH MEMORY Interface (Include :MCU,ADC,OSD etc) SST25LF020A-33-4C-SAE (CN408) (U401) (U402) D-Sub EEPROM Connector M24C04-WMN6TP (CN101) (U406) DDC1_SDA DDC1_SCL EEPROM M24C02-WMN6TP (U101) 15
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19" LCD Color Monitor AOC 919Swa 6.2.2 Inverter / Power Board Transformer AC input 16V Bridge EMI filter (T901) Rectifier diodes Rectifier,Filter 5V Start Circuit (R904,R905， R906) Power Switch PWM Control IC (Q901) LD7576 (IC901) Photocoupler Regulator (IC903) (IC904) MOSFET (Q805,Q806) Output Transformer 16V Circuit (PT801) Lamp PWM Control IC ON/OFF OZ9938GN DIM Feedba
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19" LCD Color Monitor AOC 919Swa 7. Schematic 7.1 Main Board H_Sync R101 80 OHM R102 1K 1/16W 5% DSUB_H 3 V_Sy nc R103 1K 1/16W 5% DSUB_V 3 R122 R104 C101 VGA_B+ DSUB_B+ 3 R105 R106 C102 C103 2K2 1/16W 5% 2K2 1/16W 5% CHIP BEAD 390R 1/16W 5% 0.047uF 22pF 22pF R107 C120 10pF 75R 1/16W 5% B_GND CN101 R110 DSUB_5V 100R 1/16W 5% 10 DDC1_SCL DSUB_SCL 15 5 VGA_PLUG 3 DDC1_SCL 9 DSUB_5V R109 C106 DSUB_5V 5 14 4
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VREF 19" LCD Color Monitor AOC 919Swa FB405 VDDA_AD 1 2 2,5 VCC3.3 BEAD C404 VDDDP_AD CMVCC 0.1uF/16V VSSA_AD VCCLVP VCC3IO 5 CMVCC VCCK VDDA_AD VCCP VDDP_AD R465 VDDP_AD FB406 6K8 1/16W 5% 1 2 BEAD C433 AC_DET R467 10K 1/16W 5% VSSP_AD C442 0.1uF/16V R466 C450 10uF/10V POWER_KEY# PA0 33 LVA3P VDDDP_AD 34 PA1 0R05 1/16W 0.1uF/16V LVA3N PA[0..1] PA[0..1] 4 C403 35 PA4 LVA2P 36 PA5 LVA2N VSSP_AD PA6 0.1uF/16V 6 37 2
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NC/65G0402104 15 19" LCD Color Monitor AOC 919Swa PANEL_VCC 3 D CN403 1 2 VCC3.3D 5 G S 1 2 3 4 AO3401L 5 6 PA1 7 8 PA0 PB3 PB2 9 10 CMVCCD 5 PA5 PA4 11 12 PA7 13 14 PA6 R433 C419 PA9 15 16 PA8 PB1 PB0 R481 17 18 PB3 PB2 R435 10K 1/16W 5% 0.1uF/16V 47K 1/16W 5% 19 20 PB5 21 22 PB4 PANEL_VCC 4K7 1/16W 5% R436 Q405 PB7 23 24 PB6 PB9 PB8 51K OHM 1/16W AO3401 25 26 FB402 27 28 29 30 on_Panel Q404 3 on_Panel PMBS3906 C4
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19" LCD Color Monitor AOC 919Swa ESD_5V ESD_5V 2 VCC3.3 VCC3.3 DSUB_5V CMVCCD 4 FB407 300 OHM D403 BAT54C R437 R439 2 DSUB_5V CMVCC 10K 1/16W 5% 10K 1/16W 5% CN404 BKLT_EN CMVCC1 R478 NC CMVCC 3 CMVCC1 9 D402 Q406 8 D401 CMVCC VCC1.8 7 C425 2N3904S-RTK/PS NC/BAV70//93G 64 42 P CMVCC1 2 CMVCC 6 R438 U405 on_BACKLIGHT 3 BKLT_VBRI 5 R449 NC 3.3 OHM 2W BKLT_EN 4 SR24 R440 3 2 VCC1.8 3 VI VO 3 R491 NC NC 4K7 1/16W 5%
