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ViewSonic Corporation

Confidential - Do Not Copy

VA1930wm-1

Blue (+ / -)

Information

H Position (+ / -)

H/V Position

V Position (+ / -)

H Size

+ / -

Fine Tune

+ / -

Manual Image Adjust

Sharpness

+ / -

English

French

German

Italian

Spanish

Finnish

Japanese

Simplified Chinese

Language Select

Traditional Chinese

Resolution Notice

On/Off

H Position (+ / -) *3

OSD Position

V Position (+ / -) *3

OSD Time Out

Setup Menu

OSD Background

On/Off

Memory Recall

3.2 OSD lock Menu function

OSD Lock Menu Function Check

Item

Method

Phenomenon

Activate OSD lock

[1] + [

▲

] 10S

Press any of buttons"1", "

▼

▲

", "2" will appear "OSD Locked" 3s

Deactivate OSD lock:

[1] + [

▲

] 10S(again)

NOTICE:

When the OSD is locked will lock all functions.

Status bar indicating OSD Lock or Unlock is in progress and when complete it will indicate “OSD Locked”

OSD Lock should not lock Power Button and Power Lock function

3.3 Power lock Menu function

Power Lock Menu Function Check

Item

Method

Phenomenon

Содержание VA1930wm-1

Страница 1: ...ViewSonic VA1930wm 1 Model No VS11354 19 Color TFT LCD Display VA1930wm 1_SM Rev 1a Nov 2006 ViewSonic 381 Brea Canyon Road Walnut California 91789 USA 800 888 8583 Service Manual...

Страница 2: ...xpressed or implied with respect to the contents hereof and specifically disclaims any warranty of merchantability or fitness for any particular purpose Further ViewSonic reserves the right to revise...

Страница 3: ...otices 1 2 Specification 4 3 Front Panel Function Control Description 11 4 Circuit Description 17 5 Adjustment Procedure 28 6 Troubleshooting Flow Chart 39 7 Recommended Spare Parts List 47 8 Exploded...

Страница 4: ...only in a lean cool dry environment If it gets wet unplug the power cable immediately and consult your closed dealer z Always unplug the monitor before cleaning it Clean the cabinet with a clean dry...

Страница 5: ...ViewSonic Corporation Confidential Do Not Copy VA1930wm 1 2 4 Handling and Placing Methods...

Страница 6: ...ViewSonic Corporation Confidential Do Not Copy VA1930wm 1 3...

Страница 7: ...xtVision 6 Yes Power Voltage AC 100 240V 50 60Hz Yes On Mode Max Typ 43 W 38W Power Consumption Off Mode Max 1 W Audio Yes Tilt 20 5 Yes Swivel Yes Pivot No Ergonomics Height Adjust Yes OSD Control 1...

Страница 8: ...sh computers and after market video cards Resolution Compatibility 640 x 350 640 x 480 720 x 400 640 x 400 800 x 600 832 x 624 1024 x 768 1152 x 864 1280 x 960 1280 x 1024 1440x900 Exclusions Not comp...

Страница 9: ...e measurements of machines acoustics Power Switch noise shall not be considered US Type Power Cable Separate 3 prong NEMA 5 15P type plug Length 1 8m Connects to display Color Black European Type Powe...

Страница 10: ...68 75 Hz 60 2 KHz For MAC 23 1152 x 864 75 Hz 67 5 KHz DMT 24 1152 x 870 75 Hz 68 7 KHz For MAC 25 1152 x 900 67 Hz 62 5 KHz For SUN 26 1280 x 720 50 Hz 37 5 KHz DTV 27 1280 x 720 60 Hz 45 KHz DTV 28...

Страница 11: ...n i e there should be no cycling Reaction Time OSD must fully appear within 0 5s after pushing Button 1 Short Cuts Function from the button s 1 Main Menu 2 Input toggle Analog or Digital refer to Appe...

Страница 12: ...ile it is locked a message will appear on the screen for 3 seconds showing Power Button Locked It also means that with the power button locked the LCD would automatically turn back On when power is re...

Страница 13: ...st when new mode detected and save the settings to buffer for further use 2 It should be reset by Memory Recall function Should not reset by power off power unplug and others OSD Auto Save The OSD sha...

Страница 14: ...menu options and adjusts the displayed control Also a shortcut to display the Contrast adjustment control screen Power light Blue ON Orange Power Saving Standby Power On Off Displays the Main Menu or...

Страница 15: ...or down T buttons 5 To save the adjustments and exit the menu press button 1 twice The following tips may help you optimize your display Adjust the computer s graphics card so that it outputs a 1440 x...

Страница 16: ...modes including preset color temperatures and a User Color mode which allows independent adjustment of red R green G and blue B The factory setting for this product is 6500K 6500 Kelvin sRGB This is q...

Страница 17: ...rmation displays the timing mode video signal input coming from the graphics card in the computer the LCD model number the serial number and the ViewSonic website URL See your graphics card s user gui...

Страница 18: ...he user to choose the language used in the menus and control screens Resolution Notice allows the user to enable or disable this notice If you enable the Resolution Notice shown above and your compute...

Страница 19: ...16 Control Explanation OSD Background allows the user to turn the OSD background On or Off Memory Recall returns the adjustments back to factory settings if the display is operating in a factory Prese...

Страница 20: ...FAULT flag is raised if the FAULT duration exceeds 80ms the output controller disable Resistor R808 R809 R810 R811 are for line over voltage shutdown OVP When PWM is turned off the main current flow...

Страница 21: ...5 C505 R532 C529 R530 C522 are snubber networks they suppress Voltage transient spike in drain of power MOSFET 3 R506 R510 C509 C513 C514 R525 R531 C528 C525 and C527 are connected betweenhigh voltage...

Страница 22: ...d 2 Then the digital signal enters U105 and then U104 deals with it internally In addition TVS105 TVS106 TVS107 TVS108 TVS109 TVS110 TVS111 the ten are BAV99 are ESD protector Signal DDC SCL inputs vi...

Страница 23: ...269 832 640 56 80 VESA 640 480 85Hz 85 008 509 480 3 25 36 000 35 156 1024 800 72 128 VESA 800 600 56Hz 56 250 625 600 2 22 36 000 37 879 1056 800 128 88 VESA 800 600 60Hz 60 317 628 600 4 23 40 000 4...

Страница 24: ...socket SMPS starts work and provides U105 with VCC5V When VCC5V inputs U105 resets circuit active sets U105 all registers to preset modes and then monitor goes into stand by mode That means hardware...

Страница 25: ...T 2 VCC5V 5 1V INPUT 3 GND GND 4 ON OFF CCFL on off control 5 BRIGHTNESS Panel luminance control CCFL brightness 6 GND Ground 7 VOL Volume control input For VA703m only 8 MUTE Mute control input For V...

Страница 26: ...XE0 plus signal of even channel 0 LVDS 14 GND Ground 15 RXE1 minus signal of even channel 1 LVDS 16 RXE1 plus signal of even channel 1 LVDS 17 GND Ground 18 RXE2 minus signal of even channel 2 LVDS 19...

Страница 27: ...rol IC Pin Symbol I O Description 1 C I Control 2 L I Line Sense 3 X I External Current Limit 4 S O Source of MOSFET GND 5 F I Frequency 6 D I Drain of MOSFET 7 2IC501 OZ9938GN CCFL inverter controlle...

Страница 28: ...rence ground for analog blue input 18 BIN0P I Analog blue input 19 GIN0M I Reference ground for analog green input 20 GIN0P I Analog green input 21 SOGIN0 I Sync on green input 22 RIN0M I Reference gr...

Страница 29: ...Data Output 56 VDDP I Digital Output Power 57 GND Ground 58 LVACKP O A Link Positive LVDS Differential Clock Output 59 LVACKM O A Link Negative LVDS Differential Clock Output 60 LVA2P O A Link Positi...

Страница 30: ...PIO_P01 SAR2 I O General Purpose Input Output 4mA driving strength SAR ADC Input 90 GPIO_P02 SAR3 I O General Purpose Input Output 4mA driving strength SAR ADC Input 91 GPIO_P06 I O General Purpose In...

Страница 31: ...off the monitor 2 Hot Key Operation 3 OSD Control 3 1 OSD table Layer 1 Layer 2 Layer 3 Auto Image Adjust Contrast 3 4 Contrast Brightness Brightness 3 4 Volume Volume Audio Mute On Off sRGB 9300K 750...

Страница 32: ...me Out Setup Menu OSD Background On Off Memory Recall 3 2 OSD lock Menu function OSD Lock Menu Function Check Item Method Phenomenon Activate OSD lock 1 10S Press any of buttons 1 2 will appear OSD Lo...

Страница 33: ...or 2 Deactivate Resolution Notice Menu Push button 2 under Resolution Notice OSD select Disable 3 5 Factory Mode Introduction When input the signal press power key to turn off the monitor Press at the...

Страница 34: ...e Auto Color process finished please press Power to restart monitor 6 EDID Rewrite EDID data to EEPROM If we need to rewrite the EEPROM data please confirm the following steps 1 Plug in VGA Cable we c...

Страница 35: ...ViewSonic Corporation Confidential Do Not Copy VA1930wm 1 32 2 Select Connect auto connect for ISP 3 Select Run start ISP 4 When the picture show Verify OK ISP finished...

Страница 36: ...analyzer Modes switching check 1 Use Chroma Pattern Generator to make sequence VESA 640x480 800x600 1024x768 1280x1024 MAC 832x624 DOS 640x350 720x400 the detail supported modes and power saving sign...

Страница 37: ...the bag with tape Figure 2 Figure 1 Figure 2 1 3 Put the cushions on the monitor 1 4 Place the monitor into the carton and then put all the accessories into the carton At last close the carton and se...

Страница 38: ...Disassembly Procedure Adjust Stand ViewSonic Corporation Confidential Do Not Copy VA1930wm 1 35...

Страница 39: ...ViewSonic Corporation Confidential Do Not Copy VA1930wm 1 36...

Страница 40: ...ViewSonic Corporation Confidential Do Not Copy VA1930wm 1 37...

Страница 41: ...Power Board I F Board Chassis Speaker LVDS Cable P Led Cable Function Key OSD Board Bezel Hold ViewSonic Corporation Confidential Do Not Copy VA1930wm 1 38...

Страница 42: ...16 grey scalar pattern z This LCM is analog interface So if the entire screen is an abnormal color that means the problem happen in the analog circuit part if only some scale appears abnormal color th...

Страница 43: ...y rectifier voltage Check IC802 C804 T801 Check circuit if short Check F801 P801 RT 801 D801 Check pin6 of IC802 voltage about 12V CheckC810 D803 C807 Check pin2 of IC802 voltage about 2V Check primar...

Страница 44: ...g Circuit Check R822 R823 R824 Change R822 R823 R824 Check the R pin voltage of IC803 about 2 5V Check R819 R820 Check R818 D804 C807 if short Change R818 D804 Check pin2 of IC802 voltage is 3V Check...

Страница 45: ...cuit Check R810 R811 R818 Change R810 R811 R818 Check the R pin voltage of IC803 about 2 5V Check R809 R808 R814 D809 Check D806 C815 if short Change D806 C815 Check pin1 of IC802 voltage is 5 8V Chec...

Страница 46: ...CN101 Check CCFL Enable pin 85 of U105 Check crystal pin 96 97 waveform of U105 Check reset pin84 of U105 Check power supply for U105 Check power supply pin 1 2 of CN101 Check R167 Q106 R108 R110 Inve...

Страница 47: ...ViewSonic Corporation Confidential Do Not Copy VA1930wm 1 44 6 Black Screeqn and backlight turn on...

Страница 48: ...wm 1 45 7 White Screen END White screen Check LVDS signal Check Q101 Q103 Q110 C108 C109 Check Panel Enable of U105 pin48 Check VLCD is 5V Change LVDSCable LVDS Cable Reinsert Workmanship Panel Fail L...

Страница 49: ...n Confidential Do Not Copy VA1930wm 1 46 8 Bad Screen Check the pins of U105 Bad Screen Check Crystal pin96 97 of U105 Change LVDS Cable LVDS Cable Reinsert CheckX101 C153 C154 LVDS Cable NG Workmansh...

Страница 50: ...8002 453030300120R 17 D Sub Cable Black CB 00008009 453010100150R 18 Wire HRN Assy 28 RoHS CB 00008010 430300400110R 19 Wire HRN Assy 270mm 28 RoHS CB 00008011 430300800710R 20 Flat Cable FFC 30P 160m...

Страница 51: ...400 29 N A 509112306100R SCREW P CROSS T T 3 6 ZnROHS 500 30 N A 503040000310R RUBBER COVER B LE1534 400 31 E 00008012 618100101500R SPEAKER 1 5W 16 350mm R B W CASE X3516 100 32 N A 509112306100R SC...

Страница 52: ...ViewSonic Corporation Confidential Do Not Copy VA1930wm 1 49 8 Exploded Diagram and Exploded Parts List...

Страница 53: ...aker 1 5W 1 5 3 N A 509146304100R SCREW P CROSS W WAS M3 4 Zn ROHS 4 5 4 B 00008024 790691501000R PCBA KEY PAD BOARD LE1941 1 5 5 B 00008023 790691401600R PCBA P I Board LE1941 1 5 6 N A 502090304100R...

Страница 54: ...6FT BLACK GREEN CP03B06P0 1 6 CB 00008009 453010100150R CABLE D SUB 15P MALE 6FT BLACK SZ4120955 1 7 A 00008063 703000003910R KIT ACCESSORY LE1945 VA1930wm 1 8 A 00006679 453070800250R PWR CORD 10A 12...

Страница 55: ...ViewSonic Corporation Confidential Do Not Copy VA1930wm 1 52 9 Block Diagram...

Страница 56: ...C102 100u 16V C105 22u 25V Q106 PMBT3904 1 3 2 Q110 2N7002 1 3 2 R191 4K7 Q101 AP2305GN 1 3 2 U102 FS8860 18PJ 3 1 2 VIN ADJ VOUT C104 0 1 50V U101 FS8860 33PJ 3 1 2 VIN ADJ VOUT 1 3 2 Q105 PMBT3906 C...

Страница 57: ...7 100 C122 NC R128 4K7 R149 4K7 TVS110 BAV99 1 3 2 R144 10 C115 0 047 25V U103 CAT24WC02W 1 2 3 4 5 6 7 8 A0 A1 A2 GND SDA SCL WP VCC R148 4K7 C129 0 1 50V ZD106 5V6 Q104 PMBT3904 NC 1 3 2 R116 100 C1...

Страница 58: ...P11 I2C_MDA GPIO_P10 I2C_MCL RST GPIO_P23 GPIO_P22 AVDD_MPLL AVDD_PLL VDDP VDDP VDDC VDDC VDDC GND GND GND GND GND BYPASS RSTN NC NC NC C136 0 1 50V R168 100 R159 1K R167 4 7K X101 14 31818MHz C149 0...

Страница 59: ...MUTE 2 From IF BD LED_B LED_O Power SW902 SW TACT 1 3 2 4 LED901 LED Y B 3 2 1 ZD902 5V6 NC SW906 SW TACT 1 3 2 4 SW905 SW TACT 1 3 2 4 R902 2K2 SW901 SW TACT 1 3 2 4 CN902 Harness from keypad to pow...

Страница 60: ...4V 14V 14V C713 10uF 25V R703 10K CN701 4 3 2 1 P701 4 2 3 5 1 C711 4700pF R705 27K C703 0 1 50V Q701 PMBT3904 1 3 2 R709 1K U701 TDA_7496L 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Gnd Gnd G...

Страница 61: ...2 3 D507 BAV99 1 2 3 D508 BAV99 1 2 3 C514 2700p 50V R502 680 C511 0 022 25V C523 10p 3KV R535 0 R531 3K3 1 R527 470 R514 47K 1 C515 2 2u 25V C527 2700p 50V R525 3M 3KV R532 33 R505 33 IC501 OZ9938G...

Страница 62: ...7 200R Q801 2PC1815GR 1 3 2 ZD802 16V NC L801 20mH 4 1 3 2 T801 SPW 055 1 2 3 5 4 11 6 7 9 10 8 F801 2A 250V R809 510K C818 1000u 10V C807 47u 25V C804 100u 450V C813 1000p 500V R819 1K C825 0 1 50V C...

Страница 63: ...ViewSonic Corporation Confidential Do Not Copy VG1930wm 1 60 11 PCB Layout Diagrams...

Страница 64: ...ViewSonic Corporation Confidential Do Not Copy VG1930wm 1 61...

Страница 65: ...ViewSonic Corporation Confidential Do Not Copy VG1930wm 1 62...

Страница 66: ...ViewSonic Corporation Confidential Do Not Copy VG1930wm 1 63...

Страница 67: ...rcuit Description 5 Adjustment Procedure 6 Troubleshooting Flow Chart 7 Recommended Spare Parts List 8 Exploded Diagram and Exploded Parts List 9 Block Diagrams 10 Schematic Diagrams 11 PCB Layout Dia...

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