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TABLE OF CONTENTS

1. Precautions and Safety Notices

2. Specification

3. Front Panel Function Control Description

4. Circuit

Description

5. Adjustment

Procedure

6. Troubleshooting Flow Chart

7. Block

Diagram

8. Schematic

Diagrams

9. PCB Layout Diagrams

10. Exploded Diagram and Exploded Parts List

11. Recommended Spare Parts List

ViewSonic Corporation

Confidential - Do Not Copy

VX2235wm-4

Содержание VX2235wm-4

Страница 1: ...ViewSonic VX2235wm 4 Model No VS11446 22 Color TFT LCD Display VX2235wm 4_SM Rev 1a Dec 2006 Service Manual ViewSonic 381 Brea Canyon Road Walnut California 91789 USA 800 888 8583...

Страница 2: ...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 th...

Страница 3: ...cription 8 4 Circuit Description 14 5 Adjustment Procedure 18 6 Troubleshooting Flow Chart 34 7 Block Diagram 37 8 Schematic Diagrams 38 9 PCB Layout Diagrams 47 10 Exploded Diagram and Exploded Parts...

Страница 4: ...disconnecting from input connector 3 Wipe off water drop immediately Long contact with water may cause discoloration or spots 4 When the panel surface is soiled wipe it with absorbent cotton or other...

Страница 5: ...LCD panel or the front cover of the monitor Do not touch the surface of the polarizer Surface of the LCD panel is pressed by fingers and that may cause Mura Place the monitor on a clean and soft foam...

Страница 6: ...PC Mac VGA up to 1680 x 1050 non interlaced Power Macintosh up to 1680 x 1050 4 RESOLUTION Max 1680 x 1050 60 Hz NI 1600 x 1200 60 Hz NI 1440 x 900 60 75 Hz NI 1400 x 1050 60 75 Hz NI 1280 x 1024 60...

Страница 7: ...og 170 Mhz Max 11 DISPLAY AREA 473 76 H x 296 1 V 12 OPERATING CONDITION Temperature Humidity 32 104 0 40 20 to 90 no condensation 13 STORAGE SHIPPING CONDITION Temperature Humidity 4 F to 140 F 20 C...

Страница 8: ...U Packaging Information 1 Weight of the individual empty shipping carton Weight 1 3 Kg box 2 Weight and materials of the poly foam Weight 217 g piece 2 pieces per box Material EPS 3 Weight and materia...

Страница 9: ...mary 720x400 70Hz 4 640 x 480 50 Hz 24 7 KHz 5 640 x 480 60 Hz 31 5 KHz For SOG sync switch 640x400 60Hz and 640x480 60Hz by 1 2 short cut key primary 640x480 60Hz 6 640 x 480 67 Hz 35 KHz 7 640 x 480...

Страница 10: ...x768 50Hz by 1 2 short cut key 32 1280 x 768 60 Hz 47 8 KHz For SOG sync the Information OSD will be 1024x768 60Hz the OSD content also can be changed to 1280x768 60Hz by 1 2 short cut key 33 1280 x 7...

Страница 11: ...tions and adjusts the displayed control Also a shortcut to display the Contrast adjustment control screen T OptiColor S Displays the control screen for the highlighted control Also toggles between two...

Страница 12: ...r down T buttons 5 To save the adjustments and exit the menu press button 1 twice The following tips may help you optimize your display Adjust the computer s graphics card so that it outputs a 1680 x...

Страница 13: ...ser Color mode which allows independent adjustment of red R green G and blue B The factory setting for this product is 6500K 6500 Kelvin sRGB This is quickly becoming the industry standard for color m...

Страница 14: ...formation 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 g...

Страница 15: ...monitor default setting Text optimized for text editing and viewing in a word processing environment Cinema optimized for movie and video environment Game optimized for PC TV game environment Portrait...

Страница 16: ...et at a resolution other than 1680 x 1050 the following screen appears OSD Position allows the user to move the OSD menus and control screens OSD Timeout sets the length of time the OSD screen is disp...

Страница 17: ...ithm for TMDS capability Data enable only mode support High Bandwidth Digital Content Protection HDCP 1 1 optional only in H version Enhanced protection of HDCP secret key optional only in H version A...

Страница 18: ...algorithm to have better performance in DVI RX Display Output Timing The display output port sends single double pixel data transfer and synchronized display timing to an external device The display p...

Страница 19: ...to get a larger bandwidth letting the system fast locking PLL2 finally synthesize the desired pixel sampling clock The block diagram shown below describes our high performance tracking system Host In...

Страница 20: ...hdog timer with programmable interval Three 16 bit counters timers T0 T1 and T2 One PLL to provide programmable operating frequency and clock output 2 clock output ports One full duplex serial port Si...

Страница 21: ...5kHz 12 720 x 576 50Hz 31 3kHz 13 800 x 600 50Hz 24 7kHz 14 800 x 600 56Hz 35 1kHz 15 800 x 600 60Hz 37 9kHz 16 800 x 600 70Hz 43 kHz 17 800 x 600 72Hz 48 1kHz 18 800 x 600 75Hz 46 9kHz 19 800 x 600 8...

Страница 22: ...Hz 40 1400 x 900 60Hz 55 5 kHz 41 1400 x 900 75Hz 75 kHz 42 1600 x 1200 60Hz 75 kHz 43 1680 x 1050 60Hz 64 7 kHz 1280 x 720 50Hz 37 5 kHz 1280 x 720 60Hz 45 kHz 1280 x 768 50Hz 39 6 kHz 1280 x 768 60H...

Страница 23: ...ation Confidential Do Not Copy VX2235wm 4 Horizontal Vertical Thickness Pattern Figure 3 R Color Pattern Figure 4 G Color Pattern Figure5 B Color Pattern Figure 6 Full White Patter Figure 7 Dark Scree...

Страница 24: ...rmware Test Pattern Burn In Mode Refer to Chapter III 3 Hot Keys for Function Controls Make sure the F W is the latest version 1 5 4 DDC Test Pattern EDID program Make sure it can pass test program 1...

Страница 25: ...5 11 Mura Test Pattern White RGB Black Grey Test Tool 8 ND Filter Check if the Mura can pass 8 ND Filter 1 5 12 Audio Test Signal Voice signal optional depend on model Test Pattern liberty Make sure t...

Страница 26: ...WM4 Monitor Fixture for Firmware Upgrade VGA Cable PC Personal Computer LPT Cable Firmware Upgrade Program One additional monitor for checking the program execution 2 2 Setup Procedure 2 2 1 Connect P...

Страница 27: ...4 Download program finish Pressing the OK Button to finish the download program procedure Trouble shooting If you find the status like the follow picture Please check the following item a The connect...

Страница 28: ...quipment Needed VX2235WM4 Series Monitor DDC Card PC RS232 cable DVI DVI Cable Barcode Reader VGA Cable VX2235WM4 DDC Card PC RS232 cable VGA cable BAR code reader 3 2 Setup Procedure 1 Connect VGA Ca...

Страница 29: ...ppear the PIC choose DDC Card Press ALT 2 Enter DDC 2B test interface Choose DDC Card 4 Press F8 to choose corresponding model DAT VX2235WM4A DAT press ENTER key VX2235WM4_A means the DDC under analog...

Страница 30: ...in the serial number or use the barcode reader to scan the barcode of the monitor and press ENTER key 7 The successful picture is as follows Compare EDID OK Press any key to continue 27 ViewSonic Cor...

Страница 31: ...e 2 3 1 3 Put the cushions on the LCD TV Figure 4 1 4 Place the LCD TV into the carton and then Put the other cushions on the LCD TV put all the accessories into the carton At last close the carton an...

Страница 32: ...edure 1 Disassembly of Stand and Dust Cover from LCD TV 1 1 Unscrew 4 screws that secure Stand Unit and detach Dust Cover from the LCD TV Stand Dust Cover 29 ViewSonic Corporation Confidential Do Not...

Страница 33: ...screws to remove Rear Cover 3 Disassembly of Main Board Power Board IR Board Speaker Front Cover and Panel Unit 3 1 Unscrew 7 screws to remove Shield Plate Shield Plate Rear Cover 30 ViewSonic Corpor...

Страница 34: ...ew 6 screws and disconnect the wires to remove Power Board 3 3 Unscrew 2 screws and disconnect the wires to remove Main Board Main Board Power Board 31 ViewSonic Corporation Confidential Do Not Copy V...

Страница 35: ...3 4 Unscrew 8 screws to remove Speaker and Bracket Fix 3 5 Unscrew 8 screws to remove Front Cover Speaker Bracket Fix 32 ViewSonic Corporation Confidential Do Not Copy VX2235wm 4...

Страница 36: ...y Panel Unit facedown and unscrew 4 screws on its right and left sides to remove Panel Unit and Panel Bracket Panel Unit Panel Bracket Key Board 33 ViewSonic Corporation Confidential Do Not Copy VX223...

Страница 37: ...6 Troubleshooting Flow Chart 34 ViewSonic Corporation Confidential Do Not Copy VX2235wm 4...

Страница 38: ...6 1 NO POWER 6 2 MCU NO FUNCTION 35 ViewSonic Corporation Confidential Do Not Copy VX2235wm 4...

Страница 39: ...6 3 NO DISPLAY 36 ViewSonic Corporation Confidential Do Not Copy VX2235wm 4...

Страница 40: ...7 Block Diagram 37 ViewSonic Corporation Confidential Do Not Copy VX2235wm 4...

Страница 41: ...V DGND DGND 5V DGND DGND DGND P101 CON9 1 2 3 4 5 6 7 8 9 Q102 NC MMBT3904 B E C R111 47K R109 22K C108 100nF R110 220 R102 100 R105 1K I101 ATC1084_3Y3_252 I G O VIN GND VOUT M1 PIN R103 0 NC R112 10...

Страница 42: ...4 56 D120 NC R126 100 D101 5V6 A K R119 75 1 D102 5V6 A K C112 1000P 1 2 D104 1N LL4148 A K D121 NC R125 2K2 R186 0R R113 56 D107 1N LL4148 A K R128 0R C114 0 047U 1 2 C109 0 047U 1 2 Q109 MMBT3904 B...

Страница 43: ...I104 22 21 23 24 37 25 26 27 38 28 29 31 39 40 5 10 7 6 13 8 9 16 11 12 14 15 17 18 127 128 126 125 2 3 4 1 47 46 59 72 83 95 108 60 71 84 96 107 50 51 57 55 54 53 52 48 58 61 62 63 64 65 66 67 68 69...

Страница 44: ...5 2 2K R180 10K R182 4 7K C148 100nF RP01 10K_RP 1 8 2 7 3 6 4 5 I105 24LC16 8 5 6 4 7 3 2 1 VCC SDA SCL GND WP A2 A1 A0 R193 10K C142 10uF 16V C141 100nF R192 10K C153 100nF X101 24MHz 1 2 3 C147 100...

Страница 45: ...D DGND DGND DGND R611 47K L605 15uH S R RS LS L P601 AUDIO INPUT GREEN 4 5 3 2 1 P602 P 2 0mm 4 3 2 1 R R L L C615 1UF R610 100K L603 15uH C611 0 1u 0805 L606 15uH R604 NC 1K R612 10K C617 1UF R607 4...

Страница 46: ...o Not Copy VX2235wm 4 Model Title Date Rev ViewSonic Corporation PLACEMENT 8 6 PLACEMENT JP1 AMP 1 20 10 11 DC power IN 1 9 LVDS output connector X1 MCU D SUB DVI KEY connector 10 1 4 1 Speaker RTD 25...

Страница 47: ...Copy VX2235wm 4 Model Title Date Rev ViewSonic Corporation KEY BOARD 8 7 Key Board D701 LED 2 3 1 S704 SW 1 2 S702 SW 1 2 P701 wafer 2 0mm 90 8 7 6 5 4 3 2 1 SELECT DOWN UP MENU GND LED_GREEN LED_AMB...

Страница 48: ...R909 3 01K 1 D910 1N4148 R902 2K C916 15P 3KV Q901 2SC945P 3 1 2 L901 jumper C910 0 01uF P901 1 2 C907 220uF 25V R907 1K C917 1000pF R920 2K C927 2200P R937 392R 1 R928 jumper C918 5P 3KV C903 15P 3KV...

Страница 49: ...831 100 R807 39 T2 5A 250V F801 C825 470uF 16V R844 392K 1 R834 100K 1 4WS R824 3 9K 1 R810 NC C801 0 22uF C832 NC R823 270 D822 SB1060FCT 1 3 2 C803 2200pF Q802 2SC945 3 1 2 Z801 HZ24A 3 R820 47 2WS...

Страница 50: ...9 PCB Layout Diagrams 47 ViewSonic Corporation Confidential Do Not Copy VX2235wm 4 9 1 MAIN PCB TOP VIEW...

Страница 51: ...48 ViewSonic Corporation Confidential Do Not Copy VX2235wm 4 9 2 MAIN PCB BOTTOM VIEW...

Страница 52: ...49 ViewSonic Corporation Confidential Do Not Copy VX2235wm 4 9 3 CON PCB TOP VIEW 9 4 CON PCB BOTTOM VIEW...

Страница 53: ...50 ViewSonic Corporation Confidential Do Not Copy VX2235wm 4 9 5 POWER PCB TOP VIEW...

Страница 54: ...51 ViewSonic Corporation Confidential Do Not Copy VX2235wm 4 9 6 POWER PCB BOTTOM VIEW...

Страница 55: ...10 Exploded Diagram and Exploded Parts List 52 ViewSonic Corporation Confidential Do Not Copy VX2235wm 4...

Страница 56: ...53 ViewSonic Corporation Confidential Do Not Copy VX2235wm 4...

Страница 57: ...E RB VX2235 5 20 30 30KG CM HY 1 21 N A 2106662002P HINGE RC VX2235 5 20 30 30KG CM ZJ 1 22 M SCW 0824 0123 2084740102P SCREW BND T M4X10 BND T 4 23 N A 2071983400P METAL FITTG VX2235 SECC T 0 8MM 1 2...

Страница 58: ...92 2012195500P VX2235 EPS BOTTOM 1 4 P 00008193 2012195600P VX2235 EPS TOP 1 5 BASE ASS Y 1 6 N A 2013228806P POLYETHY BAG 1 7 N A 2438501257P OWNER GUIDE 1 8 DC 00008216 2002310633P GUARANT CARD QSG...

Страница 59: ...218 2212011500P V901 11 Speaker Right E 00008180 2391302501P W902 12 Speaker Left E 00008181 2391302502P W901 13 Miscellaneous Polyethy Bag 90CMX75CMX0 02t M MS 0808 1317 2013053000P 6P60 14 Foam Bott...

Страница 60: ...0603 Y5V 50V 0 1u Z T C149 1 39 E C 0404 3815 2346410496P CAP CHIP 85 C CS 0603 Y5V 50V 0 1u Z T C150 1 40 E C 0404 3815 2346410496P CAP CHIP 85 C CS 0603 Y5V 50V 0 1u Z T C151 1 41 E C 0404 3815 2346...

Страница 61: ...PS D127 RC 1 120 E 00003830 2364601396P DIODE SWITCH SMD 1N4148W 7 F SOD 123 DIODES D127 RD 1 121 N A 2364600496P DIODE SWITCH SMD MM4148 SOD80C GRANDE D128 RA 1 122 E 00003534 2363600696P DIODE SWITC...

Страница 62: ...2253247296P RES CHIP 1 10W RC 0603 1 10W 4 7Kohm J T R145 1 205 E R 0405 6410 2253210296P RES CHIP 1 10W RC 0603 1 10W 1 0Kohm J T R147 1 206 E R 0405 6600 2253200096P RES CHIP 1 10W RC 0603 1 10W 0...

Страница 63: ...0P PCB MULTILAYER Q20WB K B FR4 2 185 14 5 U701 1 288 N A 2365335266P LINEAR IC LD7575PS SOP 8 Leadtrend I801 1 289 N A 2365335236P LINEAR IC OZ9936GN SOIC 8 O2 MICRO I901 1 290 N A 2360610096P FET N...

Страница 64: ...35 WILLAS D902 RC 1 372 N A 2363601095P DIODE SWITCH 1N4148 DO 35 PHILIPS D905 RA 1 373 N A 2363601795P DIODE SWITCH 1N4148TA_NL DO 35 FAIRCHILD D905 RB 1 374 E D 0403 0531 2363600195P DIODE SWITCH 1...

Страница 65: ...0405 1757 2233410195P RES CBN 1 4 S RD 1 4WS 100 ohm J T52 R854 1 459 E R 0405 3235 2233410295P RES CBN 1 4 S RD 1 4WS 1Kohm J T52 R906 1 460 E R 0405 3235 2233410295P RES CBN 1 4 S RD 1 4WS 1Kohm J T...

Страница 66: ...DIODE SCHOTTKY SRF10200C ITO 220 MOSPEC D821 RA 1 536 N A 2363304800P DIODE SCHOTTKY GMR10H200C TO 220FPAB GAMMA D821 RB 1 537 N A 2363305200P DIODE SCHOTTKY SP10200 ITO 220 SECOS D821 RC 1 538 N A 2...

Страница 67: ...LDER VX2035 DOWN ABS 94HB PS 7604B 5B16 1 601 N A 2074163101P HOLDER VX2035 UP ABS 94HB PS 7604B 5B17 1 602 N A 2001950202P ATTACH SHEET VX20 22 INSTALL STAND SHEET 5B50 1 603 M SCW 0824 0123 20847401...

Страница 68: ...rcuit Description 5 Adjustment Procedure 6 Troubleshooting Flow Chart 7 Block Diagrams 8 Schematic Diagrams 9 PCB Layout Diagrams 10 Exploded Diagram and Exploded Parts List 11 Recommended Spare Parts...

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