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ViewSonic VP920-1 Service Manual

19” color tft lcd display
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Service Manual

ViewSonic VP920-1
VP920b-1
Model No. VS10929
19" Color TFT LCD Display
(VP920-1_VP920b-1_SM Rev. 1a Jan. 2006)
ViewSonic® 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583

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Summary of Contents for ViewSonic VP920-1

  • Page 1: Service Manual

    Service Manual ViewSonic VP920-1 VP920b-1 Model No. VS10929 19” Color TFT LCD Display (VP920-1_VP920b-1_SM Rev. 1a Jan. 2006) ViewSonic® 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583...

  • Page 2: Revision History

    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.

  • Page 3: Table Of Contents

    4. Circuit Description 5. Adjustment Procedure 6. Troubleshooting Flow Chart 7. Block Diagram 8. Recommended Spare Parts List 9. Exploded Diagram and Exploded Parts List 10. Schematic Diagrams 11. PCB Layout Diagrams ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...

  • Page 4: Precautions And Safety Notices

    (13) Small amount of materials having no flammability grade is used in the LCD module. The LCD module should be supplied by power complied with requirements of Limited ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 5 Do not touch and that may cause “Mura” the surface of the polarizer. Take out the monitor with cushions Taking out the monitor by grasping the LCD panel. That may cause “Mura” ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 6 Place the monitor on a clean and soft foam pad. Placing the monitor on foreign objects. That could scratch the surface of the panel or cause “Mura” The panel is placed facedown on the lap. That may cause “Mura” ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...

  • Page 7: Specification

    No any sympathetic or abnormal noise allowed under Volume OSD ≤ 70% 5. Electrical Requirements Horizontal Frequency 24 – 82 kHz Vertical Refresh Rate 50 – 85 Hz. Maximum Pixel Clock 135 MHz Sync Polarity Independent of sync polarity. ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 8 Average ¡Ø 4 ms (Over Drive by scalar) *GTG response time was defined as average value of Tr and Tf for gray to gray signal change. 3 mg per lamp Mercury Panel Defects Please see Panel Quality Specifications. ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 9 @ 75 Hz, 49.7 KHz 　 　 　 　 For MAC For Composite and SOG signal, toggle 1024x768@60Hz 1024 x 768 @ 60 Hz, 48.4 KHz 　 　 　 　 1280x768@60Hz by [1]+[2] (primary = 1024x768@60Hz) ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 10 *3. The image quality of 85Hz mode might be worse than 75Hz. 6. Mechanical Dimension (Desktop) Width 416 mm (16.4 inch) Height (Height adjust to the bottom) 479mm (18.9 inch) Depth 238mm (9.4 inch) Monitor Weight 6.3 Kg (13.86 lbs) ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 11 Height Adjust 0 ~ ≥ 100 mm Pivot CW 90º Package Specifications The “Top Level Assembly” shall meet the ViewSonic Corporation ViewSonic Packaging Spec Packaging Spec, VSCPACSPEC003 ViewSonic Pallet Spec Refer to ViewSonic Pallet Load Specification REV.1.I The ink shall not rub off after a suitable drying time.

  • Page 12: Front Panel Function Control Description

    Also toggles between two controls on saves adjustments. some screens. Also a shortcut to toggle analog and digital connection. Power light Green = ON Orange = Power Saving Standby Power On/Off ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 13 • 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.) ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...

  • Page 14: Main Menu Controls

    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). ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 15 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 ®...
  • Page 16 “15 second” setting, if a control is not pushed within 15 seconds, the display screen disappears. OSD Background allows the user to turn the OSD background On or Off. ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 17 Preset Timing Mode listed in the Specifications of this manual. Exception: This control does not affect changes made with the User Color control, Language Select or Power Lock setting. ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 18 [1] + [▲] OSD Lock No signal + [▼] + [▲] Burning mode [▲] + [2] + [ ] Factory Mode Remark : All the short cuts function are only available while OSD off ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...

  • Page 19: Circuit Description

    Every window can place anywhere on the screen. Rotary 90,180,270 degree Independent row shadowing/bordering. Programmable blinking effects for each character OSD-made internal pattern generator for factory mode Support 12x18~5x18 proportional font ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 20 The low-pass filter in front of H/V scale-down plays a role of anti-aliasing filter. Moreover, the filter prior to vertical scale-down can be config as high-pass filter to serve as vertical peaking filter. ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 21 The EM6A9320 provides programmable Read or Write burst lengths of 2, 4, 8. An auto precharge function may be enabled to provide a self-timed row precharge that is initiated at the end of the burst sequence. ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 22 There are two signal to control the inverter which come from system. Logic “high” level which send to I901 is turn on the inverter. BRI signal control brightness by DC level which was integral from PWM signal. ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 23 Ptot Total Power Dissipation (Tcase = 60°C) 6 W Tamb Ambient Operating Temperature 0 to 70 °C Tstg, Tj Storage and Junction Temperature -40 to 150 °C V6 Volume CTRL DC voltage 7 V 0 4 8 12 Area(cm2) ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...

  • Page 24: Adjustment Procedure

    800 x 600 @ 60Hz, 37.9kHz 15. 800 x 600 @ 72Hz, 48.1kHz 800 x 600 @ 72Hz, 48.1kHz 16. 800 x 600 @ 75Hz, 46.9kHz 800 x 600 @ 75Hz, 46.9kHz ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 25 Figure 7, 8 Dark Screen pixels should be compliant with the spec. White Balance White & Black The screen must have the Figure 9 Pattern pure white and black pattern, no other color. ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 26 Fine Line Morie Pattern (Figure1) Gray Scale Pattern (Figure2) Horizontal & Vertical Thickness Pattern (Figure 3) R. Color Pattern (Figure 4) G. Color Pattern (Figure5) B. Color Pattern (Figure 6) ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 27 Please select and enter “Auto Image Adjust” function on Main Menu to see if it is workable. The “Auto Image Adjust” function is aimed to offer a better screen quality by built-in ASIC. For optimum screen quality, the user has to adjust each function manually. ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 28 - If not, please return the unit to repair area. 1.5.9 Screen Uniformity and Flicker Test Signal: 1280*1024@60Hz Test Pattern: Full White Pattern - Check and see if it is in normal condition. ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 29 After final QC step, we have to erase all saved changes again and restore the factory defaults. You should do “All Mode Reset” again. 1.5.15 Power Off Monitor Turn off the monitor by pressing “Power” button. ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 30 2.2.1 Connect P2 of Fixture with printer port of PC by LPT Cable. 2.2.2 Connect P1 of Fixture with Monitor by VGA Cable. 2.2.3 Connect Power Cord to Monitor. 2.2.4 Connect PC to the additional monitor. ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 31 I. ISP Download program procedure Hardware Connect status: Down load isp program Step 1: Execute ISP.exe ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 32 Then press the Creat Security File Button to enter step 3. Step 3: Creat Security File Enter the three string into the blank like fig 2. Then press OK Button. ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 33 Press the Load MCU File button to select the file will be download. (*.hex) Step 5: Run Pressing the Run Button to start download program. Press OK button to Enter ISP mode. ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 34 If the test result shows “passed,” it means the connection is well. If not (failed), it means the connection has problems. Then you need to check the setup procedure or reboot the PC, or simply use another PC to do the firmware upgrade. ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 35 - VP920 Series Monitor - DDC Card - PC - RS232 cable - DVI-DVI Cable - Barcode Reader - VGA Cable VP920 DDC Card DVI-DVI Cable RS-232 Cable Barcode Reader VGA Cable ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 36 4.(when key in DVI DDC information, use VGA transform to DVI port ) 5.Connect Power Cord to VP920 Monitor. 3.3 DDC Key In Procedure 1.Run DDC.exe 2.Choose model number and conform the Time then Press “ENTER” key. ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 37 3.When appear the PIC “ choose DDC Card”, Press ALT+2 .Enter DDC 2B test interface. Choose DDC Card 4.Press F8 to choose corresponding model.DAT(VP920A.DAT press“ENTER” key) VP920_A means the DDC under analog mode. VP920D means the DDC under digital mode. ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 38 5.Press F9 enter the download interface 6.Key in the serial number or use the barcode reader to scan the barcode of the monitor, and press “ENTER” key. ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 39 7.The successful picture is as follows. ”Compare EDID ：OK! Press any key to continue”. 8.Let VP920 active, then see the information in OSD, it shows ”Serial NO : PXX054700001” ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 40 3.4 check method Use ViewSonic EDID Editor Connect the VP920 to PC with VGA Cable. Excute the EDID Editor, then Press Ctrl+F5. If the DDC is correct, you can see the information as follow: ViewSonic Corporation Confidential – Do Not Copy...

  • Page 41: Packing Procedure

    1.4 Place the monitor into the carton and then put all the accessories into the carton. At last, close the Power Cord carton and seal it with tape. (Figure 5) VGA Cable Audio Cable DVI Cable Figure 4 Figure 5 User’s Guide ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 42 1. Disassembly of Stand unit from Monitor 1.1 Unscrew four screws that secure Stand Unit. Stand 2. Disassembly of Front Cover,Rear Cover and Speaker. 2.1 Unscrew 2 screws to detach Front Cover from monitor. Front Cover ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 43 2.2 Unscrew 6 screws to remove Rear Cover. Rear Cover 2.3 Disconnect the wires to remove Speaker module. Speaker ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 44 3. Disassembly of Power Board,Main Board,Keypad Board and Panel Unit 3.1 Unscrew 6 screws to remove Shielding Plate. Shielding Plate 3.2. Unscrew 6 screws and disconnect the wires to remove Power Board. Power Board ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 45 3.3. Unscrew 4 screws and disconnect the wires to remove Main Board. Main Board 3.4. Lay Panel Unit facedown and unscrew 4 screws on its right and left sides to remove Panel Unit and Keypad Board. Panel Unit Panel Bracket Keypad Board ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...

  • Page 46: Troubleshooting Flow Chart

    OK ? CHECK I101 CHECK I101 1.8V 1.8V SUROUND CAP UROUND CAP BEAD OK ? OK ? CHECK I105, CHECK I105 2.5V 2.5V SUROUND CAP UROUND CAP BEAD OK ? OK ? ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 47 PIN41 3.3V? D102,L107 CHECK CHECK 24MHZ PIN15,16 X102,C232 C233 OK ? CHECK CHECK TRACE PIN15,PIN16 OK ? CLOCK OK ? CHECK CHECK I106 EVERY TWO KEYPAD PIN SHORT ? P107 OK ? ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 48 I108 or Check P102 Check Check I108 R-pack Pin 8,10,12 Sign Cable soldering Check Check I103 poor I106 poor L108,109,110 C104,105,107 soldering soldering R106,107,108 C108,109,110 I108 P105 poor fail or poor soldering soldering ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 49 6.5. NO AUDIO Check jack Check P603 Audio cable Check Check 12V TRACE Check Check I601 P601 Check speaker ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...

  • Page 50: Block Diagram

    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 versions.
  • Page 51 BOM LIST (VP920-1) ViewSonic Model Number: VS10929-1W Rev: 1a Serial No. Prefix: PXX Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty #N/A 2341150996P CAP,CHIP 125'C CS 0603/COG/50V 5.0p J T C101 1.000" #N/A 2341150996P CAP,CHIP 125'C CS 0603/COG/50V 5.0p J T C102 1.000"...
  • Page 52 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty E-C-0404-3815 2346410496P CAP,CHIP 85'C CS 0603/Y5V/50V 0.1u Z T C203 1.000" E-C-0404-3815 2346410496P CAP,CHIP 85'C CS 0603/Y5V/50V 0.1u Z T C204 1.000" E-C-0404-3815 2346410496P CAP,CHIP 85'C CS 0603/Y5V/50V 0.1u Z T C205 1.000"...
  • Page 53 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty #N/A 2364600496P DIODE,SWITCH SMD MM4148 SOD-80 GRANDE D117 1.000" E-D-0403-1892 2364200896P DIODE,RECT(SMD) BAS32L SOD80C PHILIPS D117 1.000" E-00003830 2364601396P DIODE,SWITCH SMD 1N4148W-7-F SOD-123 DIODES D117 1.000" E-00003534 2363600696P DIODE,SWITCH RLS4148-T11 SOD-80 ROHM D117 1.000"...
  • Page 54 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty E-Q-0402-1607 2360100596P XISTOR,PNP R SMD MMBT3906-NL SOT23 FAIRCHILD Q106 1.000" #N/A 2360100696P XISTOR,PNP R SMD PMBS3906 SOT-23 PHILIPS Q106 1.000" E-Q-0402-1607 2360100796P XISTOR,PNP R SMD MMBT3906-F SOT-23 DIODES Q106 1.000"...
  • Page 55 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty #N/A 2253233396P RES CHIP 1/10W RC 0603 1/10W 33Kohm J T R183 1.000" E-R-0405-6411 2253210396P RES CHIP 1/10W RC 0603 1/10W 10Kohm J T R184 1.000" E-R-0405-6411 2253210396P RES CHIP 1/10W RC 0603 1/10W 10Kohm J T R185 1.000"...
  • Page 56 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty #N/A 2364601496P DIODE,SWITCH SMD BAV99PT SOT-23 CHENMKO D104 1.000" #N/A 2364601096P DIODE,SWITCH SMD BAV99 SOT-23 PHILIPS D104 1.000" #N/A 2364601496P DIODE,SWITCH SMD BAV99PT SOT-23 CHENMKO D105 1.000" #N/A 2364601096P DIODE,SWITCH SMD BAV99 SOT-23 PHILIPS D105 1.000"...
  • Page 57 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty E-IC-0401-2152 2365321991P LINEAR IC KA431AZTA TO-92 FAIRCHILD I803 1.000" E-IC-0401-1270 2365319391P LINEAR IC TL431CLPRE3 TO-92 TI I803 1.000" #N/A 2365327691P LINEAR IC CM431GDCN TO-92 CHAMPION I803 1.000" #N/A 2365328191P LINEAR IC AP431VLA TO-92 ATC I804 1.000"...
  • Page 58 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty #N/A 2363601895P DIODE,SWITCH 1N4148 DO-35 TSC D912 1.000" E-D-0403-0531 2363600195P DIODE,SWITCH 1N4148 DO-35 D913 1.000" #N/A 2363601795P DIODE,SWITCH 1N4148TA_NL DO-35 FAIRCHILD D913 1.000" #N/A 2363601895P DIODE,SWITCH 1N4148 DO-35 TSC D913 1.000"...
  • Page 59 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty E-R-0405-3214 2233410395P RES,CBN 1/4 S RD 1/4WS 10Kohm J T52 R610 1.000" E-R-0405-3214 2233410395P RES,CBN 1/4 S RD 1/4WS 10Kohm J T52 R611 1.000" E-R-0405-3214 2233410395P RES,CBN 1/4 S RD 1/4WS 10Kohm J T52 R612 1.000"...
  • Page 60 #N/A 2053755400P LED INDIC.-PWR VP920/PMMA 94HB 1F02 1.000" #N/A 2044268002P FUNCTION KEY VP920/ABS 94HB PS7604B 1F03 1.000" #N/A 2051353800P NAME PLATE VIEWSONIC BIRD LOGO H:8MM 1F04 1.000" #N/A 2433303030P SHIELDING FOAM W10*H8.5*L30mm K903 1.000" #N/A 2420313001P FFC CABLE FFC 30P*0.5mm*L130mm P980 1.000"...
  • Page 61 2427721841P CABLE EAR 3.5(577C) 2547#28 1.8M BLK P984 1.000" DC-00001586 2055613435P LABEL VIEWSONIC INSET PAGE-1280X1024 6P06 1.000" DC-00004573 2438501226P CD-OWNER GUIDE VP920-1 SERIES VS10929 HSD 6P80 1.000" DC-00004561 2002310541P GUARANT CARD VIEWSONIC VP-SERIES QSG 6P84 1.000" M-MS-0808-1316 2013222536P POLYETHY BAG 250mmX350mmX0.3t ADD>PE-LD<...
  • Page 62 6P11 0.021" P-00004565 2012183700P POLYFOAM VP720/EPS(R) 6P20 1.000" P-00004566 2012183800P POLYFOAM VP720/EPS(L) 6P21 1.000" M-LB-0813-0002 2056603050P SERIAL LABEL VIEWSONIC LCD SERIAL LABEL 6P51 1.000" M-LB-0813-0528 2055103400P LABEL JK0936F WEN 6P52 1.000" M-MS-0808-1317 2013053000P POLYETHY BAG 90CMX75CMX0.02t PE-LD 6P60 1.000" #N/A 2013054020P POLYETHY BAG 500*400MM T=0.03MM LDPE...
  • Page 63 BOM LIST (VP920b-1) ViewSonic Model Number: VS10929-1W Rev: 1a Serial No. Prefix: PXY Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty #N/A 2341150996P CAP,CHIP 125'C CS 0603/COG/50V 5.0p J T C101 1.000" #N/A 2341150996P CAP,CHIP 125'C CS 0603/COG/50V 5.0p J T C102 1.000"...
  • Page 64 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty E-C-0404-3815 2346410496P CAP,CHIP 85'C CS 0603/Y5V/50V 0.1u Z T C202 1.000" E-C-0404-3815 2346410496P CAP,CHIP 85'C CS 0603/Y5V/50V 0.1u Z T C203 1.000" E-C-0404-3815 2346410496P CAP,CHIP 85'C CS 0603/Y5V/50V 0.1u Z T C204 1.000"...
  • Page 65 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty DIODE,ZENER SMD TZMC5V6 SOD-80 5.2-6.0V E-D-0403-2808 2364505616P VISHAY D110 1.000" DIODE,ZENER SMD BZV55-B5V6 2% SOD-80C #N/A 2364505636P PHILIPS D110 1.000" DIODE,ZENER SMD BZV55-C5V6 5% SOD-80C E-D-0403-1779 2364503996P PHILIPS D111 1.000"...
  • Page 66 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty #N/A 2365335076P LINEAR IC CM1117GDCM223 SOT223 CHAMPION I101 1.000" IC,LINEAR(SMD) CM1117SCM-3.3V SOT223 #N/A 2365809496P CHAMPION I102 1.000" #N/A 2365808396P IC,LINEAR(SMD) AIC1117-33PY SOT-223 AIC I102 1.000" E-IC-0401-2924 2365808196P IC,LINEAR(SMD) AP1117E33LA SOT-223 AnaChip I102 1.000"...
  • Page 67 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty #N/A 2259222008P RES,CHIP NETWORKS 8P4R 1/16W 22 ohm J P=0.8 RP08 1.000" #N/A 2259222008P RES,CHIP NETWORKS 8P4R 1/16W 22 ohm J P=0.8 RP09 1.000" #N/A 2259222008P RES,CHIP NETWORKS 8P4R 1/16W 22 ohm J P=0.8 RP10 1.000"...
  • Page 68 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty E-R-0405-6419 2253247296P RES CHIP 1/10W RC 0603 1/10W 4.7Kohm J T R199 1.000" E-R-0405-6409 2253210196P RES CHIP 1/10W RC 0603 1/10W 100 ohm J T R200 1.000" E-R-0405-6411 2253210396P RES CHIP 1/10W RC 0603 1/10W 10Kohm J T R201 1.000"...
  • Page 69 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty #N/A 2404321230P CONNECTOR CF10301D0T0 CVILUX P105 1.000" M-MS-0808-6355 2404301107P CONNECTOR JST PH 8P SIDE P=2.0 OR EQUAL P107 1.000" #N/A 2202522100P PCB MULTILAYER VP920 M/B FR4*4 100*100 U101 1.000" E-X-0415-0112 2369103901P XTAL,OSC 24.576MHZ/49US 0.1mW/20pF...
  • Page 70 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty #N/A 2365330291P LINEAR IC KA78L05AZ TO-92 FAIRCHILD I902 1.000" #N/A 2365330491P LINEAR IC HC78L05 TO-92 HC-SEMI I902 1.000" #N/A 2365330591P LINEAR IC L78L05ACZ-A/P TO-92 ST I902 1.000" M-00003554 2097400301P EYELET BSS3-1/2H T=0.25 SN 3uM PG81 1.000"...
  • Page 71 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty E-D-0403-0531 2363600195P DIODE,SWITCH 1N4148 DO-35 D914 1.000" #N/A 2363601795P DIODE,SWITCH 1N4148TA_NL DO-35 FAIRCHILD D914 1.000" #N/A 2363601895P DIODE,SWITCH 1N4148 DO-35 TSC D914 1.000" E-D-0403-0531 2363600195P DIODE,SWITCH 1N4148 DO-35 D915 1.000"...
  • Page 72 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty E-R-0405-3214 2233410395P RES,CBN 1/4 S RD 1/4WS 10Kohm J T52 R612 1.000" E-R-0405-3214 2233410395P RES,CBN 1/4 S RD 1/4WS 10Kohm J T52 R613 1.000" M-WR-0828-0450 2428106075P JUMPER 0.6¡í *7.5mm R619 1.000"...
  • Page 73 2053755400P LED INDIC.-PWR VP920/PMMA 94HB 1F02 1.000" #N/A 2044268001P FUNCTION KEY VP920/ABS 94HB Midnight Gray 1F03 1.000" #N/A 2051353800P NAME PLATE VIEWSONIC BIRD LOGO H:8MM 1F04 1.000" #N/A 2433303030P SHIELDING FOAM W10*H8.5*L30mm K903 1.000" #N/A 2420313001P FFC CABLE FFC 30P*0.5mm*L130mm P980 1.000"...
  • Page 74 CABLE EAR 3.5(577C) 2547#28 1.8M BLK P984 1.000" DC-00001586 2055613435P LABEL VIEWSONIC INSET PAGE-1280X1024 6P06 1.000" DC-00004573 2438501226P CD-OWNER GUIDE VP920-1 SERIES VS10929 HSD 6P80 1.000" DC-00004561 2002310541P GUARANT CARD VIEWSONIC VP-SERIES QSG 6P84 1.000" M-MS-0808-1316 2013222536P POLYETHY BAG 250mmX350mmX0.3t ADD>PE-LD< 6P85 1.000"...
  • Page 75 6P11 0.021" P-00004565 2012183700P POLYFOAM VP720/EPS(R) 6P20 1.000" P-00004566 2012183800P POLYFOAM VP720/EPS(L) 6P21 1.000" M-LB-0813-0002 2056603050P SERIAL LABEL VIEWSONIC LCD SERIAL LABEL 6P51 1.000" M-LB-0813-0528 2055103400P LABEL JK0936F WEN 6P52 1.000" M-MS-0808-1317 2013053000P POLYETHY BAG 90CMX75CMX0.02t PE-LD 6P60 1.000" #N/A 2013054020P POLYETHY BAG 500*400MM T=0.03MM LDPE...

  • Page 76: Recommended Spare Parts List

    8. Exploded View And Exploded Parts List ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 77 ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 78 EXPLODED PARTS LIST (VP920/b-1) ViewSonic Model Number: VS10929-1W Rev: 1a Serial No. Prefix: PXX / PXY Item ViewSonic P/N Ref. P/N Description Q'ty #N/A 2024271303P FRONT BEZEL VP920/ABS 94HB PS-7604B #N/A 2024271302P FRONT BEZEL VP920/ABS 94HB Midnight Gray #N/A 2053755400P LED INDIC.-PWR...
  • Page 79 PACKING PART LIST (V920-1) ViewSonic Model Number: VS10929-1W Rev: 1a Serial No. Prefix: PXX Item ViewSonic P/N Ref. P/N Location Q'ty VP920 monitor M-MS-0808-1317 2013053000P POLYETHY BAG P-00004576 2012183500P POLYFOAM (R) P-00004577 2012183600P POLYFOAM (L) BASE ASS'Y #N/A 2013054020P POLYETHY BAG...

  • Page 80: Exploded Diagram And Exploded Parts List

    DDC2-SCL 2.5V MEMORY IC I104 DDR-DQ[31…0] 24LC02 EEPROM I601 TDA7496L DDC-SDA I106 ONBACKLI AUDIO AMP VOLUME CONTROL MTV512GMG64 DDC-SCL (OPTION) SPEAKE STANDBY I107 24LC16 EEPROM 3.3V P603 AUDIO IN KEY- PAD LED ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...

  • Page 81: Schematic Diagrams

    FEB_1206 1N4148 1N4148 2N3906 VGA_5V D103 NC/1N4148 C145 C146 BUS_POWER D125 47uF_16V R136 1N4148 5VCC D123 D124 Q104 1N4148/NC 1N4148/NC 2N3906 ViewSonic Corporation 3.3VCC R138 1.5K Model R256 0 Title Date Rev: ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 82 RX0P DATA0/5 SHLD BUS_POWER BUS_POWER DATA5- DATA5+ CLK-SHLD RXCP D120 RXCP CLK+ RXCN UDZ5.6B CLK- RXCN A-RED A-GREEN ViewSonic Corporation A-BLUE A-HSYNC A-GND SHEL12 Model INPUT & OUTPUT DVI-CON Title Date Rev: ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 83 100nF 22uF_16V C182 C183 C184 ADC_GND C181 22uF_16V 100nF 100nF 100nF R257 NC/22 RX2P DDC1_SDA RX2N R258 NC/22 RX1P ViewSonic Corporation RX1N DDC1_SCL RX0P RX0N RXCP RXCN Model SCALER Title Date Rev: ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 84 RTD_VREF VSSQ VSSQ VSSQ C219 R166 C220 VSSQ VSSQ 100nF 100nF VSSQ VSSQ VSSQ VSSQ VREF C,C Close DDR C,C Close RTD2363 ViewSonic Corporation Model R161 R162 R163 R164 Title Date Rev: ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 85 D117 D122 X102 24MHz 1N4148 1N4148 R203 C230 R204 R205 I104 100nF C232 C233 4.7K 4.7K 10pF 10pF ViewSonic Corporation R206 DDC2_SCL R207 DDC2_SDA Model MCU & KEYPAD 24C02 Title Date Rev: ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 86 470U/16V C603 C606 1uF/50V L605 Bead R_OUT SOCKET OUTR TO SPEAER L602 R623 Bead 0805 470U/16V L606 C617 Bead SOLDER SIDE P602/NC L603 Bead 0805 ViewSonic Corporation Model AUDIO Title Date Rev: ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 87 0.01uF TLP621 R825 F801 R830 13K 1% T2.5A/250V I803 20K 1% L823 AP431A BEAD CORE C830 4700PF 5*5*2.5 ViewSonic Corporation C831 4700PF S801 Model AC POWER AC IN 100~240V Title Date Rev: ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 88 1N4148 C924 R937 R936 JUMPER Q911 47nF PIN 7 BRI AOU402 R929 150K F C917 R926 R935 D916 0.1uF 82.5K F JUMPER Q912 SB140 AOU402 ViewSonic Corporation Model INVERTER Title Date Rev: ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...

  • Page 89: Pcb Layout Diagrams

    11. PCB Layout Diagrams 11.1. MAIN PCB TOP VIEW ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 90 11.2. MAIN PCB BOTTOM VIEW ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 91 11.3. CON PCB TOP VIEW 11.4. CON PCB BOTTOM VIEW ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 92 11.5. POWER PCB TOP VIEW ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 93 11.6 POWER PCB BOTTOM VIEW ViewSonic Corporation Confidential – Do Not Copy VP920-1_VP920b-1...
  • Page 94 Company: Add.: Fax: Tel: 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 & Processes (marc.maupin@viewsonic.com) ViewSonic Corporation Confidential – Do Not Copy...

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