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VA1912w-3, VA1912wb-3 (VS10866) Service Manual

1. THI STBI C87 Sad o o o m RITS Coo vd R119 B R118 1 R114 e o DE R101 e 3 o a SEE R11 rel IO m So coro a ViewSonic Corporation RS j RITRIB 3 D 8 19 218 VOLI a i 27 290 q o MR D7 VMPLLI i r 012 Q13 a RP46 x o amp RP47 oc 16 gt Bi 6 i i D15 un Y E Y LP6 463 x E mou LP7 ES _ 8 co x 93 ma EN SO BU a E ll P8 CPI 1 159 C158 a 0135 S de G e 22 J Du 2 231 m 29 ln 60 Confidential Do Not Copy VA1912w 3 VA1912wb 3 Reader s Response Dear Readers Thank you in advance for your feedback on our Service Manual which all
2. Input Select 1 Exit 2 Select d Audio Adjust Volume increases the volume decreases the volume and mutes the audio Mute temporarily silences audio output Color Adjust provides several color adjustment 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 E Color Adjust 6500K 5400K 5000K User Color SRGB This is quickly becoming the industry standard for color management with support being included in many of the latest applications Enabling this setting allows the LCD display to more accurately display colors the way they were originally intended Enabling the sRGB setting will cause the Contrast and Brightness adjustments to be disabled 12 ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 Control Explanation 9300K Adds blue to the screen image for cooler white used 1n most office settings with fluorescent lighting 6500K Adds red to the screen image for warmer white and richer red 5400K Adds green to the screen image for a darker color 5000K Adds blue and green to the screen image for a darker color User Color Individual adjustments for red R green G and blue B 1 To select color R G or B press button 2 2 To adjust selected color pressAandW Important If you select RECALL from the Main Menu when the produc
3. 58 ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 11 PCB Layout Diagrams die cielo vo 747445 59 ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 IC H SOA SAOCTA RENTEN lodoJ
4. Program Aaaa aaa RENEE NERE III Mstar semicounducior 20 ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 Step 3 Press connect into ISP mode display the model of Flash The dialog of figure is displayed Device Type is Pm25LV512 then press EXE MStar ISP Utility V3 6 a pet Ce 2 Device Load Read Auto Blank Program Verity Erase Step 4 Read i Press Read then enter as below figure then press to down load the program of BIOS bin MStar ISP Utility V3 6 5 mi EI Device m gt 2 JE e Dis zl l gt Head File Status Checksum Start Addr End Addr gt If down load BIOS that 1s successful as below figure then press MEE MStar ISP Utility V3 6 Bl x a 3 Connect Dis Con Checksum 0x1626 21 ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 Step 5 Press Auto into below figure that display the value of BIOS Checksum below figure is displayed 0x 1626 then press Run to execute the BIOS procedure MStar ISP Utility V3 5 Device i ReConnect i Erase Device Ge File Area M Read File C Erase Area Checksum 0x1626 i Blank iv Program The BIOS procedure is displayed the message Verify OK that the BIOS procedure is successful lt MStar ISP Utility V3 5 Device Load s
5. Video Compatibility Macintosh computers and after market video cards 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 768 1280 x 960 1280 x 1024 1440 x 900 Resolution Compatibility The image vertical size might not be full screen But the image vertical position should be at the center ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 2 4 POWER SUPPLY Efficiency 80 TYPICAL AT 100VAC 60HZ i Max Input AC Current 1 6 ARMS nominal RANGE Inrush Current Cold Start 80 A a 240VAC 50HZ SHALL START AND FUNCTION PROPERLY WHEN UNDER FULL LOAD WITH ALL COMBINATIONS Power Supply Cold Start OF INPUT VOLTAGE INPUT FREQUENCY AND OPERATING TEMPERATURE SHALL BE ABLE TO WITHSTAND AN EN61000 4 4 Power Supply Transient Immunity 2KV TRANSIENT TEST WITH NO DAMAGE Shall be able to withstand 2KV L L and 2 3KV L PE with no damage Power Supply Line Surge Immunity Shall be able to function properly without reset or visible Power Supply Missing Cycle Immunity screen artifacts when Y cycle of AC power is randomly missing at nominal input The power supply shall not produce audible noise that would be detectable by the user Audible shall defined Power Supply Acoustics to be in compliance with ISO 7779 DIN EN27779 1991 Noise measurements of machines acoustics Power Switch noise shall not be considered Separate 3 pr
6. wide Recommend resolution 1440 x 900 60Hz Input Signal PC Yes Power Consumption On Mode Max Typ 36W max 32W typ Amplifier Speaker 1 5 W 2 5W x2 Ergonomics OSD Control 4 XIL 1 EV LA 2 I9 Yes 451 x 391 x 197 mm 17 8 x 15 4 x 7 8 1n 538 x 470 x 158 mm 21 2x 18 5 x 6 2 in Physical Net kg Ib 4 5kg 9 91b Weight Package Gross Kg Ib 6 2kg 13 71b Temperature F C 41 F 95 FA5C 35 C Operating Condition Humidity 20 80 Temperature F C 4 F 131 F 20C 55 C Storage Condition Humidity Yo 20 9o 85 CB TCO03 UL cUL FCC B ICES 003 Argentina TUV S NOM EPA Energy Physical WxH x D mm Dimension Package W x H x D mm star TUV Ergo ISO13406 2 TUV GS CE GOST R SASO BSMI PSB C Tick Korea MIC CCC Regulation 3 ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 2 2 GENERAL SPECTION Test Resolution amp Frequency 1440 x 900 60Hz Test Image Size Full Size Factory Default Contrast and Brightness Controls Contrast 70 Brightness 100 2 3 VIDEO INTERFACE 1 Video RGB Analog Video Signals 2 DVI Digital Separate Video Impedance 75 Ohms Analog Maximum PC Video Signal 950 mV with no damage to monitor Maximum Mac Video Signal 1250 mV with no damage to monitor DDC 2B Compliant with Revision 1 3 Sync Compatibility Separate Sync Shall be compatible with all PC type computers
7. 11 RED Test Signal 1280 1024 60Hz Test Pattern Full Screen Red Inspection Item Bright Dot Partial amp Line Defect 12 Green Test Signal 1280 1024 60Hz Test Pattern Full Screen Green Inspection Item Bright Dot Partial amp Line Defect 13 Blue Test Signal 1280 1024 60Hz Test Pattern Full Screen Green Inspection Item Bright Dot Partial amp Line Defect 14 Gray_Scale_0 100_V64 Test Signal 1280 1024 60Hz Test Pattern Vertical 64 256 Gray Scale Right Left From 0 to 100 White Inspection Item Line Defect amp Function Defect 15 Function Test Display pattern Item Description Gray Scale 0 100 V Vertical 64 256 Gray Scale right left gt From 0 to 100 White Gray Scale 0 100 H Horizontal 64 256 Gray Scale up down gt From 0 to 100 White 8 Black Tile Black Tile Under White Background 18 ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 7 ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 BIOS update procedure Mstar ISP Tool User Manual Setp1 Take the cable of Print Port to connect Print Port of PC and Print Port of fixture and EDID burn in the same fixture to connect VGA Cable between D sub of fixture and D sub of AD Board of monitor gt the monitor must be turned on the power Step 2 Open ISP Tool MStar ISP Utility V3 5
8. RUN Elo o AJASIN e olein o AJAS N leo lo 00 A o 1 N A 41 D000643 SCREW M4 P 0 7 mm L 8 mm Round Head Phillips Cross Recess plate id EE color Zn Screw with Washer head D8 Green I Conductive Tape PET Adhesive 409 mmx58 55 mmx0 05 mm idi e Mylar Cover PcbaX a190a2 Green I Lips With Audio DAC 12M030 A Ver 0F 5 V 3 A 12 V 0 7 A I TYPE 7 7 B 00006039 27 D003247 1710 V RoHS 44 D003584 Backlight Unit A190A2 Green I C 00005686 41 D003772 Cover AD Assy A190A2 SECC without Dvi D Hole Green II 35 D008184 PCBA for A190A2 A02 H A190A2 A02 H SI CB 00005742 32 D005773 FFC FFCX816 36 Pins package AL Foil Green II 1 1 1 dt ams Q N A PJOEACLOOO Accessory BOM D sub DVI Audio China 3 pin Black Power built in RoH CB 00002083 32F0000004 Accessory Cable DVI Black Ke CB 00000544 32F2818004 Audio Cable A150X2 18AWG 180cm Black JCE Green I CB 00004287 32F3018003 Accessory Cable D Sub BLACK A150X2 Green I Power Cord CCC 300 500V 0 75mm2 3C PC 323 COC 01 L 1830 SARE i 50mm Black Linetek 18AWG No Bag Green I HW 00000590 4249930013 SCREW M4 P 0 7 mm L 15 mm Pan Head Green I HW 00000555 4249930014 Screw M3 P0 5 6 Green I HW 00000556 4249990005 Screw M3 P1 27 12 q5 5 2 Steel Green I C 00004284 40 D004250 Cover Hinge A190A2 H05 ABS PA757N Black J91A11B5 C 00004282 40 D004257 Rear Assy A190A2 H05 ABS PA757N Black J91A11B5 C 00004281 40 D004255 Bezel Assy
9. sb VOL O VIA 7 M eb MUTE 3216FF 1206 3A RoHS AUD Shutdown o 5 p R182 A I Hr lt Ancor R22 CP4 CP5 CP6 SB S AUDIOL SO x LV470M025E05 1210 4 7u 25V 5 Rolttii 0 4 7u 25V 5 RoHS 1p 5 gt AUDIOL 2 z o wem E V 8 CN4 gt GND 8 Header2X8FR2 54 MUTE e GND eo e e e VOL ADJ1 R19 0603 1K 5 RoHS C4 OPEN 0603 TP0610K PbF Q3 0603 10K 5 RoHS R18 VOL S G R17 C6 1206 10u 16V 5 RoHS C5 0603 1 00n 25V 7 ROHS R16 0603 1K 5 RoHS 2N7002 RoHS OPEN 0603 V GND R20 0603 0R 5 RoHS OPEN 55 VA1912w 3_VA1912wb 3 Confidential Do Not Copy AUD Shutdown R15 0603 1 0K 5 ROHS Low MUTE OFF Q4 2N7002 RoHS AUDIO ON C3 603 100n 25V Y RoHS GND V5A1 V5A LP2 FBMJ2125HS420 PbF VIN 12V1 LP3 FBMJ2125HS420 PbF a um mr ra LP4 FBMJ2125HS420 PbF INV ON OFF1 INV ON OFF Gr V V GND INV GND INV ADJ1 INV ADJ 4 GP R181 0603 10K 5 RoHS Q18 2N7002 RoHS LED GL C161 603 100n 25V Y RoHS GND 0603 1K 5 RoHS ViewSonic Corporation Po Inverter Interface Date Je FBMJ2125HS420 PbF L18 D9 V5A gt B240A F ViewSonic Corporation VGA 5V DVI 5V c Le Vv O o 3 x iD iD a am e co e e Si RA o o D7 Y W BAV70W open EE V33C1 U4 M1117MPX 3 3 RoHS C42 C43 E 1206 22u 16V Y RoHS 0603 1000 25V 7 RoHS 1206 22u 16V Y RoHS 0603 1001 25V 7 RoHS Vref V GND V33P1 L9 FBMJ2125HS420 PbF U6 M1117MPX 3 3 RoHS V5
10. 3 Lift up LCD module and remove bezel Step 4 Remove 2 pieces of Backlight wires Step 5 Remove 2 pieces of Backlight wires 2 ViewSonic Corporation Confidential Do Not Copy VA1912w 3_VA1912wb 3 Step 6 Loose and remove 2 screws Step 7 Loose and remove 2 screws Step 8 Loose and remove 4 screws Step 9 Remove the PCBA Cover 28 ViewSonic Corporation Confidential Do Not Copy VA1912w 3_VA1912wb 3 3 2 Remove Power Board and AD Board Step 1 Loose and remove 4 screws Step 2 Remove Lips Board Step 3 Remove 2 pieces of FFCs Step 4 Remove the FFC Step 5 Loose and remove 4 screws 29 ViewSonic Corporation Confidential Do Not Copy VA1912w 3_VA1912wb 3 Step 6 Remove AD PCBA Step7 Completed 4 Change New AD Board and Power Board Step 1 Place new AD Board And fasten 4 fixed screws Step 2 Fasten 4 fixed screws Step 3 Insert FFC Step 4 Insert 2 pieces of FFCs 30 ViewSonic Corporation Confidential Do Not Copy VA1912w 3_VA1912wb 3 Step 5 Insert new Lips Board Step 6 Fasten 4 fixed screws Step 7 Completed 3l ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 5 Remove OSD Board Step 1 Separate both Audio Cable Step 2 Take OSD Board apart Step 3 Completed 32 ViewSonic Corporation Confidential Do Not Copy VA1912w 3_VA1912wb 3 6 Change New
11. A190A2 H05 ABS PA757N Silver Pantone877C CB 00004288 32 D004533 FFC A190A2 HOS 15 Pins L 108 5 B 00005600 35 D005166 PCBA for A190A2 H A190A2 H K3 106 02 Rev 02 ODM Green II C 00004283 40 D004252 Stand Assy A190A2 H05 ABS PA757N Black J91A11B5 36 PL 00006048 73 D005900 Panel Protector Film A190A2 H05 XG 536 T 0 1 With Print Green II Dcunoonseos 77 D008324 Safety Label for A190A2 HOS 120 mmx50 mm VSC_VA1912w 2 Green II N A 77 D008330 SN Label for A190A2 H05 50 mmx25 mm VSC_VA1912w 2 for China Green II HW 00002076 7841595111 Corner Protector paper 50 mmx50 mmx1850 mm Green I 7841595191 Separator AAA 1120 820 11mm A150X2 T01 Non Green 0 025 P 00000595 7841919921 Bag 570 mmx600 mmx0 13 mm White Non Green DC 00000586 7741999141 Label Pallet Barcode Label 75x40 A190E2 H03 VSC Non Green 0 021 M 00000560 7345511002 Tape Security Tape OPP L900xW50x0 045mm VSC Non Green 77 D000114 Customer Label A170E1 HOG 180 mm 100 mm Green I 77 D000118 Customer Label A170E1 HOG 130 mm 80 mm Green I 78 D000275 Warranty Card A170E1 H0G 143 mmx210 mm VSC VA712 Green I 47 DC 00005603 77 D000576 Carton Label for A190E2 H06 20 mmx20 mm VSC VA912 for Europe Green I 40 D004259 i momen momen 79 D004425 77 D000114 78 D011686 76 D011751 47 ut un e O o i ES em Confidential Do Not Copy VA1912w 3_VA1912wb 3 BO
12. C ViewSonic Corporation TABLE OF CONTENTS Precautions and Safety Notices Specification Front Panel Function Control Description Circuit Description Adjustment Procedure Troubleshooting Flow Chart Recommended Spare Parts List Exploded Diagram and Exploded Parts List Block Diagram Schematic Diagrams PCB Layout Diagrams ii Confidential Do Not Copy 10 16 17 37 45 49 51 52 59 VA1912w 3 VA1912wb 3 1 Precautions and Safety Notices 1 Appropriate Operation 1 Turn off the product before cleaning 2 Use only a dry soft cloth when cleaning the LCD panel surface 3 Use a soft cloth soaked with mild detergent to clean the display housing 4 Use only a high quality safety approved AC DC power cord 5 Disconnect the power plug from the AC outlet if the product will not be used for a long period of time 6 If smoke abnormal noise or strange odor is present immediately switch the LCD display off 7 Do not touch the LCD panel surface with sharp or hard objects 8 Do not place heavy objects on the LCD display video cable or power cord 9 Do not use abrasive cleaners waxes or solvents for your cleaning 10 Do not operate the product under the following conditions Extremely hot cold or humid environment Areas containing excessive dust and dirt Near any appliance generating a strong magnetic field In direct sunlight 2 Caution No modification of any circuit should be attemp
13. FB1P lt BIN 54 413 FB2N DB S GNDE 53 BINOR n FBP EE GNDB HsYNC ba BINON gt FB2P E gt N aa Sc HSYNCO 98 FGON C65 0 VSYNCO GA1P NC GA2 28 gt FGON DDCA DAT 6 99 FGoP DDCA DAK gt DDCA CLK gg DDCA SDA RS232 Tx GATNINC GA3 ne rer EMEND 0603 100n 25V 7 0603 1001 25V 7 DDCA CLKC gt 65 DDCA SCL RS232 Rx GA2P NC GA4 e BEE FG1N Re GA2N NC GA5 os Fon 1 lt FG1P R E il RX2P GA3P LVA3P GA6 Mae Fer LL FG2N i R RX2N G SFG2P END Close to respective power Pins G RX1P si FRON G BA1P NC BA2 FROP Fron voci B a BA2P NC BA4 FR1N a2 FRP 5 VMPLLI CLK E p m BA2N NC BAS RAN SFRIP E12 HCB2012KF 420740 CLK L_ gt gt FR2N E DDCD DAT 36 94 FR2P DDCD DAK gt DB D GLK j Srrop DDCD CLKC gt DDCD_SCL BBON RB1P NC RB2 22 EE gt BBON Soe RB1N NC RB3 Feet BBOP 1206 10u 16V X PbF C75 R124 0602 390R 1 RB2P NC RB4 15 BBIP lt BB IN 0603 100n 25V 7 TOM AB2N NG RBS 7 Em lt BB vecss RB3P NC RB6 j4 BEP BEEN M L BB2P k Ei 6 dp Close to respective power Pins GB1P NC GB2 Boop gt BGON G Se 0603 1000 25V 7L__ 6 GB1N NC GB3 FE BGiN lt 8G0P Q GB2P NC GB4 e se dee BG1N L13 VPLL1 SEN CE e E BG2N re ee TSUM57AK S SBG2P VCC18 Q O i CLKAP LVB3P LHSYNC H8 SE po di Sg 27 VDD SDO I1 A CLKAN LVB3M LVSYNC 120 ak LL FCKN visc gt GU Ho cad CLKBP LVBCKP LCK ODD 20 Secr A
14. Information H Frequency V Frequency Resolution Pixel Clock Serial Number Model Number www View Sonic com Manual Image Adjust H Size H V Position Fine Tune Sharpness Setup Menu Language English French German Spanish Italian Finnish Japanese Traditional Chinese Simplified Chinese Resolution Notice OSD Position OSD Timeout OSD Background Memory Recall These functions are not available in Digital Mode These functions are not available under sRGB Mode 3 These functions are not available under Native Resolution Mode These functions setting can be recalled to default by V A Remark Please refer to the detail in the Appendix C Function descriptions OSD Lock short cuts function for the buttons The OSD lock will be activated by pressing the front panel control buttons 1 amp A for 10 seconds If the user then tries to access the OSD by pressing any of the buttons 1 Y A 2 a message will appear on the screen for 3 seconds showing OSD Locked The OSD lock will be deactivated by pressing the front panel control buttons 1 amp A again for 10 seconds Notel When the OSD is locked will lock all functions including Volume and Mute Note 2 Status bar indicating OSD Lock or Unlock is in progress and when complete it will indicate OSD Locked Note 3 OSD Lock should not lock Power Button and Power Lock function Power Lock short cuts function
15. OSD Board Step 1 Place New OSD Board Step 2 Insert Audio cable to connectors of New OSD Board Step 3 Completed 7 Add Cover to AD PCB Heatsink Step 1 Join the PCB Cover Step 2 Fasten 4 fixed screws 33 ViewSonic Corporation Confidential Do Not Copy VA1912w 3_VA1912wb 3 Step 3 Fasten 2 fixed screws Step 4 Fasten 2 fixed screws Step 5 Insert 2 pieces of Backlight wires Step 6 Insert 2 pieces of Backlight wires Step 7 Join LCD module and remove bezel 34 ViewSonic Corporation Confidential Do Not Copy VA1912w 3_VA1912wb 3 Step 8 Fasten 4 fixed screws Step 9 Insert FFC Step 10 Completed 8 Rear Assy amp Stand Assembly Step 1 Place Rear Cover Step 2 Fasten 2 fixed screws Step 3 Place the Stand Assy 35 ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 Step 4 Fasten 4 fixed screws Step 5 Join the Stand Cover Step 6 Join the Seat Assy Step 7 Completed 36 ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 6 Troubleshooting Flow Chart gu A Panel Change Should be Performed to Level 3 Repair Abnormal Display Check Panel Panel Change Dot Defect mage Remain Group Bright Dots Dthers Cosmetics Defect NG A Completed 37 ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 A xX Pan
16. VA1912wb 4 9 Block Diagram OSD Key Pad Audio Out Speaker Main Board LCD Module D sub Analog Video AC Power Backlight Audio In gt 51 ViewSonic Corporation Confidential Do Not Copy VA1912w 3_VA1912wb 3 10 Schematic Diagrams B3 B6 BR2N DSUB DET B BR2P DSUB DET SOG DSUB DET BR2P BRIN SOG SOG BR1N DDCA DAT BR1P VGAppca DAT DDCA CLK DDCA DAT BR1P BRON W DDCA_CLK RIN DDCA_CLK BRON BROP RIN RIN BROP NDR VGA SV vca sy GNDR GIN GNDR BG2N GIN GNDG GIN BG2N BG2P GNDG BIN GNDG BG2P BG N BIN GNDB BIN BG1N BG P V5A ESD GNDB HSYNC GNDB BG1P BGON Bun eso HSYNC VSYNC HSYNC BGON BGOP VSYNC VSYNC BGOP BB2N F EN BB2P PDAF BBIN BB1N BB1P BB1P DDCD CLK BBON Mvsa ESD DDCD CLK DDCD DAT DDCD CLK BBON BBOP DDCD DAT R DDCD DAT BBOP ij Bun R R R mene E G R dei FR2P DVI G G FR2P C G FRIN EROR G B FRIP B CLK B FRON FROP B4 CLK CLK CLK FROP CLK CLK EGON FG2N FG2P OSD FG2P n FG1N FG1P FG1P FGON LED
17. c O U Ke D Q D Noise Completed 42 ViewSonic Corporation Confidential Do Not Copy VA1912w 3_VA1912wb 3 A s Panel Change Should be Performed to Level 3 Repair Other Abnormal Display Display Shut Check PCBA AD B Change E Power B Change CNT B Change Check Panel Panel Change Display Flicker Check PCBA AD B Change tapping Li CNT B Change a Check Panel Panel Change DVI Signal Display Check PCB AD B Change Abnormal Check EDID Code EDID Update Check PCBA TV B Change TV Function Display SMS AV Cable Change Abnormal Check Controller Remote controller hange Complete 43 ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 Trouble Shooting Analysis Check the information in this section to see if the problems can be solved before requesting repair Note The consumers are only allowed to solve the problems described as below Any unauthorized product modification or failure to follow instructions supplied with the product will end the warranty immediately No image 4 Make sure power button is ON 4 Check whether the LCD monitor and computer power cords are plugged and whether there is a supply of power No Signal Input 4 Check the signal connection between the computer and LCD monitor e Out of Range 4 Check the computer image output resolution and frequency and compare the value with the pres
18. for the buttons The power button lock will be activated by pressing the front panel control buttons 1 amp W for 10 seconds Locking the power button means that the user won t be able to turn off the LCD while the power button is locked If the user presses the power button while 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 restored after a power failure If the power button is not in the locked mode then power should return to it s previous state when power is restored ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 after a power failure The power button lock will be deactivated by pressing the front panel control buttons 1 amp V again for 10 seconds Note 1 Status bar indicating Power Button lock or unlock is in progress and when complete it will indicate Power Button Locked Note 2 Power should only be lockable in the On State Memory Recall Actions Memory Recall action on the analog and digital mode as below 1 Set the factory defaults as shown in Section 4 8 2 Clean all the mode setting buffer 3 Execute Auto Image Adjust Note Memory Recall should have no effect for Language Power Lock User Color Settings or Input Priority Resolution Notice Actions 1 Resolution Notice OSD should show on screen after changing to n
19. 0 BZT52 C5V6S RoHS R135 0603 10K 5 RoHS GND 57 ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 C9 0603 47n 16Y 7 B0HS SRIN C10 0603471 6V7A0HS GIN C11 TG __ gt BIN C15 ron DO gt soa C123 0603 47n 16V 7 GNDR C124 0603 47n 16V 7 GNDG C125 rou SET e GNDB HSYNC HSYNC1 VSYNC VSYNC1 ViewSonic Corporation e A o TTT V33C 7 ads E 0K 5 RoHS MENU v Bead Array LP8 LP9 LP11 gt modified RoHs LP61 Y V Y NY 8 BK32164M121 A OH LEFT PARA RIGHT TERRA fas 77 1 si AUTO ui A a BK32164M121 o LED O AB CH sd ei LED G E Os A T ee E Los O ON le i V33C NI rand L1 amp 7 Oe AUDIOR gt E d 5 MPZ1608S221 RoHS E L2 q 2 AUDIOR gt Ei asd CP7 CP8 MPZ1608S221 RoHS HEADER 10_2 RoHS 0603 4 100n 25V RoHS 0603 4 100h 25V RoHS R36 L3 R62 dele due V 0603 1 0K 5 RoHS 0603 1 K 5 ROHS OPEN di i AUDIOL gt Ey END MPZ1608S221 RoHS L4 N O aj ara 1 9808 0R 5 R0HS TT PE E E DIE MPZ1608S221 RoHS 2N7002 RoHS OPEN HED OR C2 R3 603 100n 25V Y RoHS OPEN V 0603 249R 1 RoHS GND GND V33C V33C R2 R63 0603 1K 5 RoHS OPEN 0603 10K 5 RoHS 0603 0R 5 RoHS TP0610K PbF Die SE LED GL 2N7002 RoHS OPEN R4 C1 0603 249R 1 RoHS 603 100n 25V Y RoHS OPEN ViewSonic Corporation e GND al TTT
20. 2w wb 3 Caution Card o DC 00008012 76 D011749 oo ao Green II Hardware SCREW M3 P 0 5 mm L 4 mm Pan Head Phillips Cross Recess Green I I HW 00000553 1249930008 STU 2000 Screw M3 P1 27 12 q5 5 2 Steel Green I HW 00000556 42A9990005 ST 2000 SCREW M4 P 0 7 mm L 15 mm Pan Head Phillips Cross Recess Green I I HW 00000590 4249930013 PTs 2000 SCREW M4 P 0 7 mm L 8 mm Round Head Phillips Cross Recess plate color HW 00004042 42 D000649 Zn Screw with Washer Shye Ching Hama Naka Motogawa head D8 Green I 2000 SCREW M4 P 0 mm L 11 8 mm Hexagon Stand Off Socket Green I I HW 00006041 4249940007 2000 Tape Security Tape OPP L900xW50x0 045mm VSC Non Green I M 00000560 7345511002 0 0 II Packing Material Bag 570 mmx600 mmx0 13 mm White Non Green P 00000595 7841919921 O O T Cushion A190A2 T05 EPS WHITE 450 mmx160 mmx145 mm Sing Home PS P 00004295 78 D004392 FOAM Left Green II Carton A190A2 H05 538 mmx158 mmx470 mm VSC_VA1912w 3 5ms Green x P 00008012 78 D011686 Pf ES II Cushion A190A2 T05 EPS WHITE 450 mmx160 mmx145 mm Sing Home PS P 00004296 78 D004388 FOAM Right Green II Remark 1 Above listed items are examples supplier can expand the rows to add more necessary items Remark 2 All revised RSPLs with newly added items or any change made should be highlighted and correlated with the ECN ECR approved by ViewSonic Corporation This is to eliminate repeated cros
21. 4 panies 0603 1001 25V77 F WP SCK EEE CLKBN LVBCKM LDE gt BCKN vss SDI NC LVB2P NC NC LVB2M NC C80 V 4 BRON BB1P LVB1P BB2 e BROP IS BRON E 5 1206 10u 16V X PbF GND Pm25LV512 BB1N LVB1M BB3 BROP Close to respective power Pins e 127 BRIP___ BRIN GND isg BR2N gt BRIP AVDD x BB3P NC BB6 Ci SRP BR2N O BB3N NC BB7 gt BR2P L14 AVDD1 GND 80 BSTH 7 5 Bee 8 FSTH dem VQC33 VCC33 VCC33 E C94 0603 22p bOV N 88 GVOFF o o O 8 SE GPO0 2 STE gt GVOFF s 14 31818MHz A 86 STV n 8 DIC V PV e x eros LE C Seed cp B 3 1206 10u 16V X PbF C79 GND C93 0603 22p 50V N Eros El OE e ae E T 0603 100n 25V 7 TID 12 GPO5 FS POL TP e 0 Ke GND Groe L ro 8 e AUDIO ON e B e VBA i GPIO P22 gt x GND Close to respective power Pins GPIO P23 5 VOC33 GPIO_P03 rz aS GPIO_P16 PWM2 R103_N893 100R 5 9 AUTO fi 5A 206 i 69 Ri04 oR X e BEN BOGQ OPEN E 22 MODE O GPIO P15 PWMO L PRIRIQ0R 5 ELL Power 2 MODE 1 PWM2 GPIO P24 Ga fe VCM PWM E 2 x o ab 3 GPIO P27 PWM1 gt PANELONOFF X 3 m e SA Z e gt e Ai 0 0 o e e Le GPIO P12 FS NV ON OFF S 2 H 8 5 wo PWM1 GPIO_P25 L INV ADJ c GNB E DVI O60 HOA Groner pvi 5V e ye GND R1 0603 10K 5 214 TR LO RSTN 5 m GPIO POU SAR1 SART RITO 9693 300R 5 MENU As ann sala GPIO P01 SAR2 2 PEOR JROR 5 lt LEFT GPIO P02 SAR3 25 R121 9893 400R 5 Z RIGHT C88 0603 1001 25V 7 GPIO P06 22 LED GL cu
22. AL gt V33P C50 C52 1206 22u 16V Y RoHS 0603 1001 25V 7 RoHS 1206 22u 16V Y RoHS 0603 1001 25V 7 RoHS V GND 56 Confidential Do Not Copy VA1912w 3 VA1912wb 3 SCALER VCC POWER FOR SCALER gt V33P Panel VCC Q8 E H2907AS 1N4148WS F 9603 100R 1 gt VCTRL R202 0603 51R 1 V18C V18C C160 0805 4 7u 16V Y 4 did FE C R203 e 0603 2K 1 V18V1 Heat Sink ViewSonic Corporation SE mie POWER EIN R35 DDCA DAK 0603 06 3 OPEN R34 0603 56R 1 Tn 66 mm WU R21 0603 56R 1 EG R23 0603 56R 196 R24 0603 A70R 196 R25 0802 100R 1 R26 0603 100R 1 89263 6762 E y GND R27 0602 100R 1 D2 R144 D24 0603 0R 5 OPE BAV99W Ro D5 i yo BAV99W RoHS BAV99W RoHS Qp varistor OP V V5A_ESD GND O c V5A_ESD GND C159 DCA CLK S 0603 100n 25V X RoHS V GND HSI L20 0603 0R 5 RoHS 57 0803 1K 1 RoHS 7 HSYNC D32 UDZSF 5 6B PbF R55 C128 C126 0603 33p 50V N ROHS 0603 33p 50V N RoHS open 0603 2 2K 5 RoHS V GND V GND GND GND R66 0603 0R 5 RoHS R54 0803 1K 1 RoHS gt VSYNC D33 UDZSF 5 6B PbF R129 S C127 z 0603 33p 50V N RoHS open 0603 2 2K 5 RoH V 0603 220p 50V N GND V GNDGND GND R64 0603 100R 5 RoHS DICA CLK TI Ea L8 R133 BK1608LL121 PbF 0603 10R 5 RoHS D10 D D6 E 0603220K fis T Ro Ha 0603220KVO5T ROHS BAV70W RoHS R68 0603 10K 5 RoHS C23 0603220KV05T ROHS 0603 1 00n 25V 7 ROHS D3
23. CO G 3 ty gt O KT e tr O G O gt C O n n d Q SE Y 2 o UJ E gt Q r C o EM 5 un 5 C3 S g 5 2 un R tri o E g B a un gt m n Ge N Q bai C O 3 m CB 00004288 32 D004533 CB 00005742 32 D005773 DC 00008016 77 D012194 DC 00008017 77 D011742 77 un o o o Lei E o O LA e Green II SN Label for A190A2 H05 50 mmx25 mm VA1912wb 3 for China Green II Carton Label for A190A2 H05 76 2 mmx76 2 mm VA1912wb 3 Green II DC 00008018 D011733 DC 00008019 76 D011751 HW 00000553 42A9930008 HW 00000556 42A9990005 HW 00000590 42A9930013 HW 00004042 42 D000649 HW 00006041 4249940007 M 00000560 7345511002 P 00000595 7841919921 Z G e E e e gt i SS S O lt o o 2 Es dy Q 5 2 H Hardware M3 P 0 L A Philli crew M3 P1 27 12 q5 5 2 Steel Green I SCREW M4 P 0 7 mm L 8 mm Round Head Phillips Cross Recess plate color Zn Screw with Washer Shye Ching Hama Naka Motogawa head D8 GreenI SCREW M4 P 0 mm L 11 8 mm Hexagon Stand Off Socket Green I Miscellaneous Tape Security Tape OPP L900xW50x0 045mm VSC Non Green Packing Material Bag 570 mmx600 mmx0 13 mm White Non Greer Cushion A190A2 T05 EPS WHITE 450 mmx160 mmx145 mm Sing Home PS FOAM Left Green II Cushion A190A2 T05 EPS WHITE 450 mmx160 mmx145 mm Sing H
24. H05 ViewSonic 0 7 DC 00008019 76 D011751 MENU for A190A2 H05 VA1912w wb 3 Green II P_i Rev la Serial No Prefix QBN Q ty 1 E 00005747 MJOAIOAKO 19 Wide Semi Product A190A2 1440X900 TN LL N A 36X8636401 Driver IC Scan HX8636APD400 TSMC 300Channel RoHS GreenI f 3 N A L3J009XXXX 19 wide PS TN Asahi 0 7mm glass Cr BM Panel Base CT LL PI PA A PE 4 N A 74 D002212 M190A1 Green I ie a Polarizer CF Degree 135 415 84 mmx 262 15 mmx0 215 mm NWF LESEGAGSI a 3 N A 74 D002213 M190A1 Green I LT vi rena Jrs caza re O CT N A 73 C000047 ACF COG AC 8405Z 23 1 5mmX100M 100000 mmx1 5 mm COG ACF Green N A 7344191017 ACF AC 4251FY 16 100M RL Green1 LI ooo n sepes fn Grant ARA pom N A 36 D002378 RoHS Green I m a ACF PCB AC 9825R 35 100000 mmx1 5 mm Hitachi Chemical PCB ACF 00 1 Vum N A 73 D002676 Green I l 10 NA 35 D004361 PCBA for A190A2 H A190A2 A02 H X 1206 01 Rev 01 GreenT LL LL 11 NA 734951002 Silicone TORAY 9187L 3308 ll 0 12 NA PJOAFTOQ04 Olympic 19 W Function BOM D sub Audio Morning Star TSUM17AK 1 13 HW 00000553 42A9930008 SCREW M3 P 0 5 mm L 4 mm Pan Head Phillips Cross Recess Green LL _16 SCREW M4 P 0 mm L 11 8 mm Hexagon Stand Off Socket Green I Eoo 2 Metal Frame Front M190A1 L01 A190A2 M190A1 L03 SECC 0 6t 19 wide Po ho A META SCREW M4 P 0 7 mm L 8 mm Round Head Phillips Cross Recess plate c
25. M LIST VA1912WB 3 ViewSonic Model Number VS10866 Panel Protector Film A190A2 H05 XG 536 T 0 1 With Print Green II 40 HW 00002076 7841595111 Corner Protector paper 50 mmx50 mmx1850 mm Green Il a 41 MA 7841595191 Separator AA 1120 820 11mm A150X2 T01 Non Green Il 0025 42 P 00000595 7841919921 Bag 570 mmx600 mmx0 13 mm White Non Green ll 1 43 DC 00000586 7741999141 JLabel Pallet Barcode Label 75x40 A190E2 H03 VSC Non Green II 0021 44 M 00000560 7345511002 Tape Security Tape OPP L900xW50x0 045mm VSC Non Green o II 03 45 MA 77 D000114 Customer Label A170El HOG 180 mm 100 mm Green ll 1 46 MA 77 D000118 Customer Label A170El HOG 130 mm 80mm GreenT ll 1 47 Na 78 D010933 Warranty Card A170E1 HOG 143 mmx210 mm VA712 Ver2 Green Il J CEC 50 N A j77D000114 CustomerLabelfor A170E1 HOG Green IVA712 Ver 2 Gren EC 1 51 NA 78 D001492 Pallet A150X2 TOl Wooden 1150 mmx840 mmx138 mm Green 002 52 C 00004280 40 D004256 Seat Assy A190A2 H05 ABS PA757N Green LE os EE Cushion A190A2 T05 EPS WHITE 450 mmx160 mmx145 mm PS FOAM Left MEN 53 P 00004295 78 D004392 Green II ap p Cushion A190A2 T05 EPS WHITE 450 mmx160 mmx145 mm PS FOAM I y 54 P 00004296 78 D004388 Right Green II Ei 79 D004425 Shipping Package Information for A190A2
26. MAIN MENU AUTO IMAGE ADJUST IZ RO CONTRAST BRIGHTNESS INPUT SELECT A HT AUDIO MENU COLOR ADJUST i INFORMATION MANUAL IMAGE ADJUST 7 SETUP MENU 7 MEMORY RECALL 1i EXIT 21 SELECT Main Menu with OSD controls Front Control Panel shown below in detail Scrolls through menu options and adjusts the displayed control Displays the Main Menu or exits the control screen and saves adjustments Also a shortcut to display the Contrast adjustment control screen Displays the control screen for the highlighted control Also toggles between two controls on some screens Also a shortcut to toggle analog and digital connection Audio Mute Power light button turns Green ON the sound off Orange Power Saving Standby Power On Off 10 ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 Do the following to adjust the display setting 1 To display the Main Menu press button 1 MAIN MENU AUTO IMAGE ADJUST Xx M CONTRAST BRIGHTNESS INPUT SELECT fi AUDIO MENU IIT COLOR ADJUST INFORMATION MANUAL IMAGE ADJUST SETUP MENU 9 MEMORY RECALL I4 EXIT I2 SELECT NOTE All OSD menus and adjustment screens disappear automatically after about 15 seconds This is adjustable through the OSD timeout setting in the setup menu 2 To select a control to adjust press Aor V to scroll up or down in the Main Menu 3 After the desired control 1s selected
27. OR LED OR LED OR end A H FB2N LED_GL DADO LED GL SCALER FB2N EB3B TURBO MENU TURBO FB2P FB1N MENU FT MENU FB1N See LEFT RIGHT LEFT FB1P FBON RIGHT AUTO RIGHT FBON FBOP AUTO POWER AUTO FBOP POWER POWER ECKN V33C FCKN FCKP FCKP FSTH AUDIO ON FSTH INV ON OFF AUDIO ON BCKN DCDC ON OFF INV ON OFF BCKN BCKP PANEL ON OFF DCDC_ON OFF BCKP BSTH AUDIOR VCM PWM PANEL ON OFF BSTH AUDIOR YA VOL ADJ VCM PWM STB VOL_ADJ STB POL AUDIOR 208E INV ADJ POL B AUDIOL AUD_DET CPV AUDIOL A gt STV E AUDIOL 4 ZYDIOL Bou sv OE S B5 VOFF cvorr BD SV B cvorr B2 VCTRL BB B VCTRL INVERTER I F V5A WEI V12A V12A AUDIOL IB V18C Vref V33C AUDIOL BD Hov 5v Vref Bl Vref VCM PWM AUDIOR ID SC PANEL ONOFF VOM P pamm AUDIOR B Mos sv DCDC_ON OFF nene ON OFF AUD DET V12A AUD DETB S W24 g 2 Bv gt gt vnb SP V33P 33 VOL AD V5A VOL ADJ d POWER E llv5 V33C AUDIO ON LED GL V18C V5A HH v33c E V12A INV_ON OFF e e e INV ON OFF ViewSonic Corporation INV AD INV ADJ i Model O ode Tile System Diagram ol he 52 ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 FSTH FB2P FB2N FB1P VCC1 FB1N veo FBOP FBON FG2P STV1 FG2N STV FG1P FG1N FGOP FGON CPV1 FCKP CPV FCKN STB POL OE1 FR2P OE FR2N FRIP FRIN ig STB1 j8 STB el dnd V 5 POL1
28. SEG N A 74 D002212 M190A1 Green I Polarizer CF Degree 135 415 84 mmx262 15 mmx0 215 mm NWF N A 74 D002213 ESEGAGSI M190A1 Green I N A 73 C000047 E AC 8405Z 23 1 5mmX100M 100000 mmx1 5 mm COG ACF 0 00168 7344191017 ACF AC 4251FY 16 100M RL Green I 0 0044 Driver IC COF Data M190A1 L01 HX8018 A050CBAK Reel 6 bit Pus GE 432Channel RoHS Green I 73 D002676 ACF PCB AC 9825R 35 100000 mmx1 5 mm PCB ACF Green I 0 0044 N A 35 D004361 PCBA for A190A2 H A190A2 A02 H X 1206 01 Rev 01 Green I N A 7349951002 Silicone TORAY 9187L 330g 42A9930008 SCREW M3 P 0 5 mm L 4 mm Pan Head Phillips Cross Recess Green I a UO 12 HW 00000553 pa ON CA LA HW 0000604 1 4249940007 SCREW M4 P 0 mm L 11 8 mm Hexagon Stand Off Socket Green I Metal Frame Front M190A1 L01 A190A2 M190A1 L03 SECC 0 6t 19 wide gt 2 lt gt 17 D001323 Customer Label for A170E1 HOG 15 mmx15 mm QC Pass Label VSC for China Green I 78 D001492 0 02 0 40 D004259 i 78 D004397 Cushion A190A2 T05 EPS WHITE 450 mmx160 mmx145 mm PS FOAM Left Green II p 78 poo43sg Cushion A190A2 T05 EPS WHITE 450 mmx160 mmx145 mm PS FOAM Right Green II 79 D004425 N A 77 D000114 78 D011686 N A 76 D011751 MENU for A190A2 H05 al La tA Ul Tit E gt F FF F L e WIWIWIWIWPWINININM N_INININI to WII I q a KR IRI AJJ gt 00 O a
29. Service Manual ViewSonic VA1912w 3 VA1912wb 3 Model No VS10866 19 Color TFT LCD Display VA1912w 3 VA1912wb 3 SM Rev 1a Aug 2006 ViewSonic 381 Brea Canyon Road Walnut California 91789 USA 800 888 8583 Copyright Copyright 2006 by ViewSonic Corporation All rights reserved No part of this publication may be reproduced transmitted transcribed stored in a retrieval system or translated into any language or computer language in any form or by any means electronic mechanical magnetic optical chemical manual or otherwise without the prior written permission of ViewSonic Corporation Disclaimer ViewSonic makes no representations or warranties either expressed 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 this publication and to make changes from time to time in the contents hereof without obligation of ViewSonic to notify any person of such revision or changes Trademarks Optiquest is a registered trademark of ViewSonic Corporation ViewSonic is a registered trademark of ViewSonic Corporation All other trademarks used within this document are the property of their respective owners Revision History SM Editing Date ECR Number Description of Changes NT M i ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 os Se m
30. V Read Auto Blank 2 Connect Y ReConnect I Erase Device Erase OK i Blank Message Blanking File Area Blank OK Program Message Programing Frogram OK Verity Message Verifying Verity OK C Erase Area iv Blank i Program W Verify Step 6 Press Dis Con then leave the mode of ISP MStar ISP Utility V3 6 E n x dns RA SES nde 3 Device Load Read Auto Blank Program Verity Erase Confio Y ReConnect I Erase Device Erase OK i Blank Message Blanking File Area Blank OK i Read File Checksum 021626 Program Message Programing Pragram OK Verity Message Verifying Verify OK C Erase Area i Blank i Program w Verify 22 ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 Step 7 When select ReConnect and press Run then repeat to connect the mode of ISP into next the action of BIOS procedure KA Connec MStar ISP Utility V3 5 Device Load Auto Dis Con IS E E L Verify Erase Config Lf Blank ta Read log Program Connect OF Pragram File Ready ll Erase Message Erasing Erase OK Blank Message Blanking iv Erase Device Ge File Area i Read File Checksum 021626 C Erase Area Blank OK F Blank Program Message Programing Program W Ve
31. ___________ 1 32 C 00004277 40 D004253 Rear Assy A190A2 H05 ABS PA757N GreenT 1 33 C 00004276 40 D004254 Bezel Assy A190A2 H0S ABS PA757N GreenT LL 34 CB 00004288 32 D004533 FFC A190A2 H05 15 Pins L 108 5 A Loo I Po I ooo px pou Rua lo 48 ViewSonic Corporation Confidential Do Not Copy VA1912w 3_VA1912wb 3 8 Exploded Diagram and Exploded Parts List y a Pd 4 EXPLODED PARTS LIST VA1912W 3 EXPLODED PARTS LIST VA1912WB 3 ViewSonic Model Number VS10866 ViewSonic Model Number VS10866 Rev la Rev la Serial No Prefix QBK Serial No Prefix QBN Q ty N A N A N A Q ty N A N A N A 6 B 00005599 35 D005694 ADPCBASSY 8 C 00005686 41 D003772 ADCOVER 9 C 00004281 40 D004255 BEZELASSY 1 6 B 00005599 35 D005604 ADPCBASSY 1 8 C 00005686 41 D003772 ADCOVER I 9 C 00004281 40 D004255 BEZELASSY 1 ViewSonic Corporation Confidential Do Not Copy VA1912w 4 VA1912wb 4 PACKING PART LIST VA1912W 3 PACKING PART LIST VA1912WB 3 ViewSonic Model Number VS10866 ViewSonic Model Number VS10866 Rev la Rev la ViewSonic P N Ref P N ViewSonic P N Ref P N 1 Na VAI9I2W2 LCD Monitior VA1912W 2 LCD Monitior 2 PE Foam B
32. ag P 00000595 7841919921 PE Foam Bag P 00000595 7841919921 PE Foam Bag P 00004295 78 D004392 PS Foam Left P 00004295 78 D004392 PS Foam Left P 00004296 78 D004388 PS Foam Right P 00004296 78 D004388 PS Foam Right fr to BOM anm cfr to BOM Power Cor e u interno onecoa CB 00004287 CB 00000544 etre BOM oercod refer to BOM Power Cord CB 0000428 CB 0000054 N A N A N A N A 7 4 N A N N A N A N A HEU d RN 7 N A refer to BOM Power Cord 8 CB 00004287 32F3018003 MonitorCable 11 N A refer to BOM Menu Quick Setup RA em enon 12 N A refer to BOM Menu CD ROM nin Lett en Roi cad _ 13 N A refer to BOM Warranty Registration card 15 N A refer to BOM Customer Label 1 DVI Cable N A 1 LCD Monitor O NA A refer to BOM Menu Quick Setup wa Let enn refer to BOM Menu CD ROM C 00004285 m 97 Different region refer to BOM Warranty Registration card 3 C 00004285 40 D004259 Seat Different region refer to BOM Customer Label 14 Seat 1 1 1 1 1 1 1 1 1 1 11 Menu Quick Setup 3 PS Foam Left 15 Customer 12 Menu CD ROM Label H 13 Warranty Registration Card 7 Power Cord 0 BOM List se NEE Cable 10 DM Cable 6 Power Cord BOM List 5 Carton Carton dimensions 538 L x158 W x470 H mm 50 ViewSonic Corporation Confidential Do Not Copy VA1912w 4
33. at To further reduce system costs the TSUMS7AK also integrates intelligent power management control capability for green mode requirements and spread spectrum support for EMI management The TSUMS7AK incorporates the world s first coherent oversampled RGB graphics ADC in a monitor controller system The oversampling ADC samples the input RGB signals at a frequency that is much higher than the signal source pixel rate This can preserve details in the video signal that ordinarily would be lost due to input signal jitter or bandwidth limitations in non oversampled systems The TSUM57AK also incorporates a new Dynamic Frame Rate DFR generator for the digital output video to the display panel that preserves the advantages of a fixed output clock rate while eliminating the output end of frame short line Display RSDS Analog RGB Processing Panel To Panel Engine Interface Analog Dual HSYNC VSYNC Interface Engine DVI XTAL EXT CLK Serial Flash 16 ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 5 Adjustment Procedure A Function Test and Alignment Procedure 1 All Modes Reset You should do All Model Reset Refer to Chap 3 Hot Keys for Function Controls first This action will allow you to erase all end user s settings and restore the factory defaults 2 Auto Image Adjust The Auto Adjust is aimed to offer a best screen quality by built in ASIC For optimum screen quality the user has to adjust each f
34. ate or tilt the Interface Connector of the TFT Module 11 After installation of the TFT Module into an enclosure LCD monitor housing for example do not twist or bend the TFT Module even momentarily When designing the enclosure it should be taken into consideration that no bending twisting forces may be applied to the TFT Module from outside Otherwise the TFT Module may be damaged 12 The cold cathode fluorescent lamp in the LCD contains a small amount of mercury Please follow local ordinances or regulations for disposal 13 The LCD module contains a small amount of materials having no flammability grade The LCD module should be supplied with power that complies with the requirements of Limited Power Source IEC60950 or UL1950 or an exemption should be applied for 14 The LCD module is designed so that the CCFL in it is supplied by a Limited Current Circuit IEC60950 or UL1950 Do not connect the CCFL to a Hazardous Voltage Circuit ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 Correct methods Incorrect Methods Only touch the metal frame of the panel or the front Surface of the panel is pressed by fingers amp this may cover of the monitor cause MURA Do not touch the surface of the polarizer EI Take out the monitor by grasping the LCD panel That may cause MURA zx ViewSonic Corporation Confidential Do Not Copy VA1912w 3_VA1912wb 3 2 Specification 2 1 INSTRUCTION 19
35. b DSUB 09030R 5 0pe SUB_DET V Cora A PWMO GPIO_P26 VOL_ADJ GND GPIO P13 20 R105 Depa QORI5 lt TURBO vccas GPIO P14 VCC33 DDCROM SCL DDCROM SDA C81 333482 0603 100n 25V 7 ds U7 DCDC ON O AT24C16AN 10SU 2 7 RoHS L gt DCDC ON OFF c VCC A0 T ene GND 0603 27R 0 1 RoHSha MMBT3904 F 0603 1 00n 25V 7 need to modify the SAR is ViewSonic Corporation 6 bits and the max voltage is 1 8V e SR1 1 77 SR2 0 54 VCC33 O VCC33 R127 0603 20K 1 OPEN 0805 1 0u 6 3V 5 ope R137 Confidential Do Not Copy VA1912w 3 VA1912wb 3 0603 20K 1 OPEN V GND C70 0603 10n 25V 7 RoHS RNSVD40AA RoHS R212 0603 1K 5 GND C84 1206 4 7u 16V Y C87 0603 100n 25V 7 C86 0603 100n 25V 7 C85 0603 100n 25V 7 Close to respective power Pins ViewSonic Corporation e ooo D e VOL ADJ ViewSonic Corporation 0603 1K 5 RoHS V33C R12 O V33C O V33C Ro 0603 10K 5 RoHS R13 C7 Qi R14 0603 4 7K 5 RoHS 2N7002 RoHS P 0603 1u 10WY open lt JINV_ADJ Q2 0603 4 7K 5 RoHS C8 2N7002 ROHS y 0603 0 1u 25V open gt 0603 4 7K 5 RoHS V GND lt INV ON OFF R11 0603 10K 5 OPEN V5A Q LP1 V Juan SES FBMJ2125HS420 PbF CP2 CP3 CP1 1206 10 16 V 5 RoHS 16 b UWT1E101MCL1GS RoHS 1210 4 7u 25V 5 RoHS 15 D u si ND_INV GND GND GND e AUD DET x ED DEI VIN 12V LPS TP0610K PbF A M 1 FP1 FBMJ2125HS420 PbF V12A Q
36. culiar Smell Check PCBA Poe EE Inverter B Change No step J Complete 40 ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 A xX Panel Change Should be Performed to Level 3 Repair AD B Change Power B Change Power ON OFF Check PCBA CNT B Change Abnormal Inverter B Tum OR Check PCBA Abnormal OSD B Change Check Wire Check Wire OSD Cable AC Power Change DC Power CNT Cable Change Check Adapter Adapter Change AD B Change Power B Change Inverter B LED Dark mm OSD B Change LED Abnormal Check Wire LED Loss DC Power CNT Cable Change LED Flicker LED Display Abnormal LED Off Check PCBA Adapter Change NG Completed 41 ViewSonic Corporation Confidential Do Not Copy VA1912w 3_VA1912wb 3 sx Panel Change Should be Performed to Level 3 Repair gt OSD Key AD B Changd Unavailable E NT B Power B Change OSD B Change D sub cable m Check Wire E OSD cable VGA cable DVI cable BIOS Update OSD Cant Input Check PCB OSD Can t Read OSD No Display JRE OSD Jiggle OSD Display Abnormal Check BIOS Voice Loss AD B Change CNT B Change Power B Change Inverter B Change OSD B Change Abnormal Loud Check PCBA L R Abnormal 1 f Check Wire No Voice L R Same Check Loudspeake Volume il oudspeaker Change NG O
37. el Change Should be Performed to Level 3 Repair Display Noise pocas Check PCBA AD B Change 7 Display Power B Change Abnormal Inverter B Change CNT B Change Beat Display Flicker Check Panel Panel Change Beat Display Shut Down AD B Change Check PCBA Power B Change CNT B Change Check Panel Panel Change No Backlight Check Adapter Adapter Change Display Wave No Step J Completed 38 ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 A xX Panel Change Should be Performed to Level 3 Repair Display White Out Booting Delay Check PCBA AD B Change Power B Change Inverter B Change Check PCBA Brightness Even Abnormal Check PCBA Power B Change i Inverter B Change Beat Display No Backlight Check Panel Panel Change Check Adapter Adapter Change AD B Change R G B Check PCBA CNT B Change Display Abnormal Check Wire VGA cable Gray Scale DVI cable Display Check Panel Panel Change Abnormal fini D rem gt 39 ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 A xX Panel Change Should be Performed to Level 3 Repair Horizontal Line Defect Vertical Weak Line Check PCBA AD B Change Horizontal Weak Line Vertical Band Defect Horizontal Band Defect Check Panel Panel Change Check PCBA AD B Change AD B Change Pe
38. et values Please refer to Appendix Display Mode e Fuzzy Image Adjust Phase Image too bright Adjust brightness and contrast by OSD Image too dark Adjust brightness and contrast by OSD Irregular image Check the signal connection between the computer and LCD monitor Perform Auto Adjust Distorted image Reset the LCD monitor Take off extra accessories such as signal extension cord Image is not centered Use OSD Image Menu to adjust H Position and V Position Check image size setting Perform Auto Adjust Sizeis not appropriate Use OSD Image Menu to adjust H Position and V Position Check image size setting Perform Auto Adjust Uneven color Use OSD Color Menu to adjust color setting Color too dark Use OSD Color Menu to adjust color setting Dark area distorted Use OSD Color Menu to adjust color setting White color is not white Use OSD Color Menu to adjust color setting 44 ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 7 Recommended Spare Parts List RECOMMENDED SPARE PARTS LIST VA1912W 3 ViewSonic Model Number VS10866 Serial No Prefix QBK Rev la Description EREN ViewSonic P N Ref P N Universal numbers Accessories Power Code UL SVT 18 3C 75C LP 30B LS 13 L 1830 50mm Black A 00008008 32E1818015
39. i 13 FBMJ2125HS420 PbF i2 V33P IL FHR F36S HF RoHS C118 PANEL ON OFF1 0603 100n 25V X RoHS PANEL ON OFF o GND DCDC_ON OFF1 DCDC ON OFF 1 o VCM_PWM1 BB2P VCM PWM BB2N BB1P BB1N BBOP BBON BG2P BG2N BG1P BG1N GVOFF1 B DE GVOFF 1 e oui BCKP BCKN FSTH1 BR2P FSTH BR2N SiH fe BR1P BR1N BSTH1 i BRON BSTH BSTH V5A V GVOFF GND VCM PWM DCDC ON OFF DCDC ON OFF PANEL ON OFF PANEL ON OFF V5A S Board X Board RA N P gt BA P N IL FHR F36S HF RoHS GA N P GA P N C11 C120 i i 1206 22u 16V Y RoHS 0603 100n 25V 7 RoHS BA N P RA P N V12A C121 1206 4 7u 35V Y E ViewSonic Corporation 0603 100n 25V X RoHS GND 53 ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 VDPP O VDPP1 C59 C60 0603 100n 25V 7 0603 100n 25V 7 VDDC O VDDC1 VCC33 Q L10 VDVI i PLLVPLL AVDD VDPP VDDC vel E osb 2BV 7 C92 C55 0603 100n 25V 7 1206 10u 16V X PbF C56 C57 C58 slo 3 a sinus ZER 0603 100n 25V 7 0603 100n 25V 7 0603 100n 25V 7 Ut GND sa ai O JvcrRL i BB TE a lt Close to respective power Pins oo o a NC LVACKP NC 9 aa Q RIN gt amo Z 88 gt 2 SNC LVACKM NC HEX con GND GNDR RINON 22 de T FBOP gt FBON voli GNL gt GNDG ss GINOP RA1N LVA2M RA3 NU FN IS FBOP L11 O VDVI1 GNDG GINON RA2P LVA1P RA4 o FP lt FB1N soG gt SOGINO RA2N LVA1M RA5 gt
40. i Linetek 18AWG No Bag Green I AJOA2H6A25 PC Board Assembly PCBA for A190A2 H A190A2 H K3 106 02 Rev 02 USI ITC ODM Green II B 00005600 35 D005166 BENI PCBA for A190A2 A02 T A190A2 A02 H S1 1206 04 Rev 04 ODM Green II B 00005705 35 D005062 EE Power Supply Board Lips With Audio DAC 12M030 A Ver 0F 5 V 3 A 12 sd B 00008008 27 D007836 A I TYPE 7 mA 1710 V Delta Dongguan Inverter Delta Jiangsu Adaptor RoHS Cabinets Bezel Assy A190A2 H05 ABS PA757N Silver Pantone877C Fuking 0000281 40 D004255 EE Cover Hinge A190A2 H05 ABS PA757N Black J91A11B5 Fuking C 00004284 40 D004250 Seat Assy A190A2 HOS ABS PA757N Black I91A11B5 Hontech Precision C 00004285 40 D004259 e ed Accessory Cable D Sub BLACK Johnson Components amp Equipments A150X2 E CB 00004287 32F3018003 Pf ao Green I FFC A190A2 H05 15 Pins Tennsure Young Shin L 108 5 I CB 00004288 32 D004533 FFC FFCX816 36 Pins Tennsure package AL Foil Green II CB 00005742 32 D005773 O III Documentation Safety Label for A190A2 H05 120 mmx50 mm Chang Huang VSC_VA1912w 2 ta DC 00008009 77 D012196 ea EN Green II Label Pallet Barcode Label 75x40 A190E2 H03 VSC Non Green DC 00008010 7741513161 0 0 1 Carton Label for A190E2 H06 20 mmx20 mm Chang Huang VSC VA912 for DC 00008011 177 D011736 1 Europe Green I MENU for A190A2 H05 Complex 1C VSC_VA191
41. me for image stability 3 seconds Max excluding Auto Adjust time Under DOS mode 640 x 350 720 x 400 amp 640 x 400 there is no Auto Adjust feature The monitor needs to do Auto Adjust the first time a new mode is detected but except the DOS mode 640 x 350 720 x 400 amp 640 x 400 see section 0 TouchTM Function Actions While running Change Mode Auto Adjust or Memory Recall the image shall blank 2 6 FRONT PANEL CONTROLS AND INDICATORS Front Panel Hardware Controls Power Switch Front Head Power Control soft Power Switch Power LED Front Head Green ON Orange Active Off Dark Soft Power Switch OFF Front Panel Controls Head XX 1 Y a 2104 Note Power Button Button 1 and Button 2 and Mute Button must be one shot logic operation i e there should be no cycling OSD must fully appear within 0 5s after pushing Button 1 Short Cuts Function from the button s To immediately activate Contrast menu It should be change to Brightness OSD by push button 2 W A Recall both of Contrast and Brightness to default ViewSonic Corporation Confidential Do Not Copy VA1912w 3_VA1912wb 3 Remark All the short cuts function are only available while OSD off Main Menu Controls Auto Image Adjust Contrast Brightness Input Select Analog Digital Audio Adjust Volume Mute Color Adjust sRGB 9300K 6500K default 5400 5000 User Color R G B
42. nguage used 1n the menus and control screens 14 ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 Control Explanation RON x Resolution Notice allows the user to enable or disable this notice Resolution Notice If you enable the Resolution Notice shown above and your computer 1s set at a resolution other than 1440 x 900 the following screen appears Resolution Notice For best picture quality change the resolution to 1440 x 900 Press 1 to Clear Message Press 2 to Disable Message OSD Position allows the user to move the OSD menus and control screens OSD Timeout sets the length of time the OSD screen is displayed For example with a 30 second setting if a control 1s not pushed within 30 seconds the display screen disappears OSD Background allows the user to turn the OSD background On or Off Memory Recall returns the adjustments back to factory settings 1f the display 1s operating in a factory Preset Timing Mode listed in the Specifications of this manual a P 15 ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 4 Circuit Description The TSUMS7AK is total solution graphics processing IC for LCD monitors with panel resolutions up to SXGA It is configured with a high speed integrated triple ADC PLL an integrated DVI receiver a high quality display processing engine and an integrated output display interface that can support RSDS panel interface form
43. olor li 16 HW 00004042 42 D000649 Zn Screw with Washer head D8 Green I el lan Conductive Tape PET Adhesive 409 mmx58 55 mmx0 05 mm dro 17 N A 73 D002886 Mylar Cover PcbaX a190a2 Green I E Lips With Audio DAC 19M008 AF OF 5 V 3 A 13 8 V0 7 A I TYPE 7 mA 171 Ill 18 B 00008008 27 D007836 V Green II N A 44 D003584 Backlight Unit A190A2 Green1 LL 20 C 00005686 41 D003772 Cover AD Assy A190A2 SECC without Dvi D Hole Green LL LL 21 B 00008011 35 D008184 PCBA for A190A2 A02 H A190A2 A02 H S1 1206 05 Rev 04 IGreen IT 22 CB 00005742 32 D005773 FFC FFCX816 36 Pins package AL Foil Green 2 Olympic 19 Accessory BOM D sub DVI Audio China 3 pin Black Power built 32F2818004 Audio Cable AIS0X2 ISAWG 180cm Black JCE Green LL 25 CB 00004287 32F3018003 Accessory Cable D Sub BLACK A150X2 Green1 1 APR EP Power Cord CCC 300 500V 0 75mm2 3C PC 323 COC 01 L 1830 50mm o do ao 26 A 00002058 32E1818013 Black Linetek 18AWG No Bag Green I PA ee Olympic 19 Wide ID BOM D sub DVI Audio China Black VSC o do SE 27 N A PJOAII521C 5ms TSUM57AK 28 HW 00000590 4249930013 SCREW M4 P 0 7 mm L 15 mm Pan Head Green1 ll 4 29 HW 00000555 42A9930014 Screw M3 P0 5 6 Green T pps 30 HW 00000556 42A9990005 Screw M3 P1 27 12 p5 5 2 Steel Green 2 31 C 000042379 40 D004258 Cover Hinge A190A2 H05 ABS PA757N Greenl____
44. ome PS FOAM Right Green II Generic Foam Set Generic Box Craft Box A190A2 H05 538 mmx158 mmx470 mm VA1912wb 3 ams Green II un s E Ww T Gees Un B 5 r I B 3 J o B am O a Jd E 5 un O o a FA N N pa lu pa gt o o e un 26 85 I T c I 5 3 m C 5 B o B T O av O Hj E 5 Lei O o a CH O A 1 Item EN EEA MEN P 00004295 78 D004392 P 00004296 78 DO04388 P 00001347 30833 P 00002515 0653 P 00008014 78 D011685 Remark 1 Above listed items are examples supplier can expand the rows to add more necessary items Remark 2 All revised RSPLs with newly added items or any change made should be highlighted and correlated with the ECN ECR approved by ViewSonic Corporation This is to eliminate repeated cross checks of each item between this version and prior 5 E e 46 ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 BOM LIST VA1912W 3 ViewSonic Model Number VS10866 Rev la Serial No Prefix QBK Item ViewSonic P N Ref P N ocation Universal number Om N A MIOALODKO1 ON 19 Wide Common BOM Semi Product A190A2 1440X900 TN 36X8636401 Driver IC Scan 300Channel RoHS Green I L3J009XXX8 19 wide PS TN Asahi 0 7mm glass Resin BM Panel Base Polarizer TFT Degree 135 414 mmx259 7 mmx0 215 mm NWF LE
45. on native mode for 30 sec 2 The OSD should disappear after 10 sec or by pushing button 1 or 2 Resolution Notice function should be disabled when push button 2 under Resolution Notice OSD 0 Touch Function Actions 1 Execute Auto Image Adjust 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 shall save new settings when it is turned off by the user or when it times out There shall not be a separate save 2 7 AUDIO INTERFACE SPEAKER SPECIFICATION Maximum power output Electric There should be no audible vibration with volume at 100 Input Vibration signal within 1 Vrms There should be no affect on the screen image stability under any Screen image conditions Connector PC99 requirement Audio in Lime Green pantone 577C Cable type length 3 5mm stereo cable 1 8m length NOTE THERE IS NO GUARANTEE 1 W POWER Audio DPMS CONSUMPTION IN ACTIVE OFF MODE WHEN THE AUDIO CABLE IS CONNECTED 9 ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 3 Front Panel Function Control Description Adjusting the Screen Image Use the buttons on the front control panel to display and adjust the OSD controls which display on the screen The OSD controls are explained at the top of the next page and are defined in Main Menu Controls on page 10
46. ong NEMA 5 15P type plug Length US Type Power Cable 1 8m Connects to display Color Black Schuko CEE7 7 type plug European Type Power Cable Length 1 8m Connects to display Color Black Separate 3 prong type plug CCC Type Power Cable Length 1 8m Connects to display Color Black Separate 2 prong NEMA 1 15P type plug Length PSE Type Power Cable 1 8m Connects to display Color Black Power Saving Operation Method VESA DPMS Signaling Power Consumption ON Mode lt 36 W max 32 W typ ACTIVE OFF lt 1 W r 2 ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 2 5 ELECTRICAL REQUIREMENT Horizontal Vertical Frequency Horizontal Frequency 30 82 kHz Vertical Refresh Rate 50 85 Hz Maximum Pixel Clock 135 MHz EDID file is 140MHz Sync Polarity Independent of sync polarity Timing Table wwe wea ue Te savana 7084 ATI LUCILIO RN NN oxen aria some w mam e ona S xa asi w mamm w s owas O 8 mmm NN P Sn sone msi ost T BT CTA T w fox son ssi si O TT SE w ET O EES Deem Le ET le mem e sra rn era HN gt cima st T e eem Te Ian w sso si mau A I o raton on ss TO ViewSonic Corporation Confidential Do Not Copy VA1912w 3_VA1912wb 3 Primary Presets 1440 x 900 60Hz User Presets Number of User Presets recognized timings Available 10 presets total in FIFO configuration Changing Modes O Maximum Mode Change Blank Ti
47. ows continuous improvement of our products We would appreciate your completion of the Assessment Matrix below for return to ViewSonic Corporation Assessment A What do you think about the content of this Service Manual Unit Excellent Good Fair TT E I 2 Speciienion LL 3 Front Panel Function Control Deseiption ACireuit Description LL o 5 Adjustment Procedure 00 PO 6 Troubleshooting Flow Chart nen spretar 6 opo gram nd ie A 0107077 A A T TTT Wuere B Are you satisfied with this Service Manual C Do you have any other opinions or suggestions regarding this service manual Reader s basic dada Name Title Company Add Tel Fax E mail After completing this form please return it to ViewSonic Quality Assurance in the USA at facsimile 1 909 839 7943 You may also e mail any suggestions to the Director Quality Systems amp Processes marc maupin viewsonic com 62 ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3
48. press button 2 A control screen like the one shown below appears The command line at the bottom of the Contrast Brightness control screen tells what to do next from this screen You can toggle between control screens adjust the selected option or exit the screen 2 Select 4 To adjust the setting press the up or down Y 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 900 60Hz video signal to the LCD display Look for instructions on changing the refresh rate in the graphics card s user guide If necessary make small adjustments using H POSITION and V POSITION until the screen image is completely visible The black border around the edge of the screen should barely touch the illuminated active area of the LCD display 11 ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 Main Menu Controls Adjust the menu items shown below by using the up A and down Y buttons Explanation Auto Image Adjust sizes and centers the screen image automatically Contrast adjusts the difference between the image background black level and the foreground white level Brightness adjusts background black level of the screen image Input Select toggles between inputs if you have more than one computer connected to the VA1912w VA1912wb EE EB
49. rify 23 ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 Packing For Shipping And Disassembly Procedure Packing For Shipping 1 Packing Procedure 1 1 Paste protection film to protect the monitor Figure 1 1 2 Put the monitor in the PE bag and seal the bag with tape Figure 2 Figure 2 Figure 1 3 Put the cushions on the monitor Figure 3 1 4 Place the monitor into the carton and then put all the accessories into the carton As last close the carton and seal it with tape Figure 4 p Figure 4 Figure 3 24 ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 Monitor Assembly and Disassembly 1 Separate Stand Assy 1 1 Remove Stand Cover Step 1 Remove the Seat Assy Step 2 Remove the Stand Cover Step 3 Loose and remove 4 screws Step4 Remove the Stand Assy Step 5 Completed 25 ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 2 Separate Rear Cover Rear Case Assy Separate Bezel hooks to take Bezel and Rear Cover apart Step 1 Loose and remove 2 screws Step 2 Separate Bezel hooks to take Bezel and Rear Cover apart Step 3 Remove Rear Cover Step 4 Completed 26 ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 3 Remove Power Board and AD Board 3 1 Remove Metal Cover Step 1 Remove FFC from OSD Board Step 2 Loose and remove 4 screws Step
50. s checks of each item between this version and prior versions N EE REM EM 45 ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 RECOMMENDED SPARE PARTS LIST VA1912WB 3 ViewSonic Model Number VS10866 Serial No Prefix QBN Rev la Description N ViewSonic P N Ref P N Location Universal number ower Cord PC 323 COC 01 Black CCC 1830 mm Green I A 00002058 32E1818013 PC Board Assembly PCBA for A190A2 H A190A2 H K3 106 02 Rev 02 USI ITC B 00005600 35 D005166 ODM Green I Lips With Audio DAC 19M008 AF OF 5 V 3 A 13 8 V0 7 A I B 00008008 27 D007836 B 00008011 35 D008184 Q o CA TYPE 7 mA 1710 V Green II C 00004276 40 D004254 Audio Control PCBA for A190A2 A02 H A190A2 A02 H S1 1206 Rev 04 IGreen II C 00004277 40 D004253 C 00004279 40 D004258 4 Cabinets A190A2 H05 ABS PA757N Green A190A2 H05 ABS PA757N Green I eat Assy A190A2 H05 ABS PA757N Green I C 00004280 0 D004256 Cables i i x CB 00000544 32F2818004 FC A190A2 H05 15 Pins Tennsure Young Shin L 108 5 FC FFCX816 36 Pins Tennsure package AL Foil Green Il CB 00004287 32F3018003 Documentation A190A2 H05 120 mmx50 mm VA1912wb Ver 3 HD o o SIN sle Z gt gt la H Q o lt G A T 5 B gt v e gt T T O gt UJ n d gt Cn 3 Z e G 5 gt c g o C oc o gt CA X N oo gt Q oo
51. t 1s set to a Preset Timing Mode colors return to the 6500K factory preset Information 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 guide for instructions on changing the resolution and refresh rate vertical frequency NOTE VESA 1440 x 900 60Hz recommended means that the resolution is 1440 x 900 and the refresh rate 1s 60 Hertz Information H Frequency XX V Frequency XX Hz Resolution XXX MHz Pixel Clock XXXXXXXXX Serial Number XXXXXXXXXXX Model Number XXXXXXXXXXX www ViewSonic com 1 Exit Manual Image Adjust Sub menu Manual Image Adjust H V Position Fine Tune Sharpness 2 Select 13 ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 Control Explanation H Size Horizontal Size adjusts the width of the screen image H V Position Horizontal Vertical Position moves the screen image left or right and up or down H V Position 2 Select Fine Tune sharpens the focus by aligning text and or graphics with pixel boundaries NOTE Try Auto Image Adjust first Sharpness adjusts the clarity and focus of the screen image Setup Menu displays the menu shown below Setup Menu Resolution Notice OSD Position OSD Time Out OSD Background On Off 2 Select Language Select allows the user to choose the la
52. ted Service work should only be performed after you are thoroughly familiar with all of the following safety checks and servicing guidelines 3 Safety Check Care should be taken while servicing this LCD display Because of the high voltage used in the inverter circuit the voltage is exposed in such areas as the associated transformer circuits 4 LCD Module Handling Precautions 4 1 Handling Precautions 1 Since front polarizer is easily damaged pay attention not to scratch it 2 Be sure to turn off power supply when connecting or disconnecting input connector 3 Wipe off water drops immediately Long contact with water may cause discoloration or spots 4 When the panel surface is soiled wipe it with absorbent cotton or other soft cloth 5 Since the panel is made of glass it may break or crack if dropped or bumped on hard surface 6 Since CMOS LSI is used in this module take care of static electricity and ensure human earth when handling 7 Do not open or modify the Module Assembly 8 Do not press the reflector sheet at the back of the module in any direction 9 In the event that a Module must be put back into the packing container slot after it was taken out of the container do not press the center of the CCFL Reflector edge Instead press at the far ends of the CFL Reflector edge softly Otherwise the TFT Module may be damaged 10 At the insertion or removal of the Signal Interface Connector be sure not to rot
53. unction manually A Turn the computer and LCD monitor on B Press the Auto button on monitor keypad to Auto Adjust C The LCD monitor will start the Auto Adjust process automatically and run for 10 consecutive seconds during which time you will notice the image change 3 Firmware Test Patten Burn in Model Refer to Chap3 Hot Keys for Function Control Make sure the F W is the latest version 4 DCC Test Patten EDID program Make sure it can pass test program 5 Window Shut Down Test Signal 1280 1024060Hz Test Pattern Checkered Pattern Every One Pixel 50 Green amp 50 Blue Inspection Item Flicker Mura 6 Window BG Test Signal 1280 1024 0 60Hz Test Pattern Window standard pattern Inspection Item Line Defect Function Defect amp Mura 7 25 Gray Test Signal 1280 1024 60Hz Test Pattern E Full Screen 25 White Gray Inspection Item Particle Line Defect amp Mura 8 50 Gray Test Signal 1280 1024 60Hz Test Pattern E Full Screen 50 White Gray Inspection Item Bright Dot Particle Line Defect amp Mura 9 White Box Test Signal 1280 1024 60Hz Test Pattern E Window standard pattern Inspection Item Particle Line Defect Power Image Remain amp Mura 17 ViewSonic Corporation Confidential Do Not Copy VA1912w 3 VA1912wb 3 10 Black Box Test Signal 1280 1024 60Hz Test Pattern Window standard pattern Inspection Item Bright Dot Line Defect amp Power

VA1912w-3, VA1912wb-3 (VS10866) Service Manual

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