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ViewSonic VX2235wm-3, Service Manual

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ViewSonic VX2235wm-3 Service Manual Download Page 23

ViewSonic Corporation

 

Confidential - Do Not Copy 

   

VX2235wm-3 

 19

 

 
 

 

 
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 Screen Pattern (Figure 8) 
 
 

Summary of Contents for VX2235wm-3

Page 1: ...ViewSonic VX2235wm 3 Model No VS11446 22 Color TFT LCD Display VX2235wm 3_SM Rev 1a Nov 2006 ViewSonic 381 Brea Canyon Road Walnut California 91789 USA 800 888 8583 Service Manual...

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

Page 3: ...Notices 1 2 Specification 3 3 Front Panel Function Control Description 8 4 Circuit Description 14 5 Adjusting Procedure 20 6 Trouble Shooting Flow Chart 34 7 Block Diagrams 37 8 Schematic Diagrams 38...

Page 4: ...turn off power supply when inserting or 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 soile...

Page 5: ...thods Only touch the metal frame of the 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 Pla...

Page 6: ...re 32 104 0 40 Operating Condition Humidity 20 90 Temperature 4 140 20 60 Storage Condition Humidity 10 90 Regulation Global CB MPR II WEEE ROHS ISO13406 2 VSA UL cUL FCC B TUV S NOM Energy Star VSE T...

Page 7: ...start and function properly when under full load with all combinations of input voltage input frequency and operating temperature Power Supply Transient Immunity Shall be able to withstand an ANSI IEE...

Page 8: ...67 Hz 35 KHz 9 640 x 480 72 Hz 37 9 KHz 10 640 x 480 75 Hz 37 5 KHz 11 640 x 480 85 Hz 43 3 KHz 12 720 x 400 70 Hz 31 5 KHz For Analog sync OSD will be 640x350 640x400 720x400 primary 720x400 13 720...

Page 9: ...Hz Main Menu Controls Auto Image Adjust 1 Contrast Brightness 2 4 Input Select Analog Digital Audio Adjust Volume 4 Mute 4 Color Adjust SRGB 9300K 7500K 6500K default 5400 User Color R G B Information...

Page 10: ...pantone 577C Cable type length 3 5mm stereo cable 1 8m length Audio DPMS Speakers stay off when the rest of the monitor is in power saving Note There is no guarantee 1 W at power consumption in Active...

Page 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...

Page 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...

Page 13: ...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 te...

Page 14: ...R green G and blue B 1 To select color R G or B press button 2 2 To adjust selected color pressSandT Important If you select RECALL from the Main Menu when the product is set to a Preset Timing Mode...

Page 15: ...e from the short cut keys Standard is for general windows environment and monitor default setting Text optimized for text editing and viewing in a word processing environment Cinema optimized for movi...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 23: ...on Confidential Do Not Copy VX2235wm 3 19 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...

Page 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...

Page 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...

Page 26: ...WM3 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...

Page 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...

Page 28: ...quipment Needed VX2235WM3 Series Monitor DDC Card PC RS232 cable DVI DVI Cable Barcode Reader VGA Cable VX2235WM3 DDC Card PC RS232 cable VGA cable BAR code reader 3 2 Setup Procedure 1 Connect VGA Ca...

Page 29: ...del number and conform the Time then Press ENTER key 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 VX2235WM...

Page 30: ...y VX2235wm 3 27 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 7 The successful picture is as follo...

Page 31: ...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 and sea...

Page 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 ViewSonic Corporation Confidential Do Not Cop...

Page 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 ViewSonic Corporati...

Page 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 ViewSonic Corporation Confidential Do Not Copy VX22...

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

Page 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 Poard ViewSonic Corporation Confidential Do Not Copy VX2235wm...

Page 37: ...ViewSonic Corporation Confidential Do Not Copy VX2235wm 3 34 6 Troubleshooting Flow Chart...

Page 38: ...6 1 NO POWER 6 2 MCU NO FUNCTION ViewSonic Corporation Confidential Do Not Copy VX2235wm 3 35...

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

Page 40: ...ViewSonic Corporation Confidential Do Not Copy VX2235wm 3 37 7 Block Diagram...

Page 41: ...GND 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 10K C107 100nF L102 200R 2A...

Page 42: ...1 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 E C R121 56 D115 NC D108...

Page 43: ...6 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 69 121 120 73 74 75 76 77 7...

Page 44: ...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 100nF R161 22 R160 22 R179...

Page 45: ...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 7K L604 15uH R615 10K C601 150...

Page 46: ...rporation Confidential Do Not Copy VX2235wm 3 43 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 2553V 100mm 90mm Earphone 1...

Page 47: ...rporation Confidential Do Not Copy VX2235wm 3 44 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 2553V 100mm 90mm Earphone 1...

Page 48: ...8 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 P903 1 2 R914 3 3K R92...

Page 49: ...V 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 R833 100K 1 4WS C810 22UF...

Page 50: ...ViewSonic Corporation Confidential Do Not Copy VX2235wm 3 47 9 PCB Layout Diagrams 9 1 MAIN PCB TOP VIEW...

Page 51: ...ViewSonic Corporation Confidential Do Not Copy VX2235wm 3 48 9 2 MAIN PCB BOTTOM VIEW...

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

Page 53: ...ViewSonic Corporation Confidential Do Not Copy VX2235wm 3 50 9 5 POWER PCB TOP VIEW...

Page 54: ...ViewSonic Corporation Confidential Do Not Copy VX2235wm 3 51 9 6 POWER PCB BOTTOM VIEW...

Page 55: ...ViewSonic Corporation Confidential Do Not Copy VX2235wm 3 52 10 Exploded Diagram and Exploded Parts List...

Page 56: ...ViewSonic Corporation Confidential Do Not Copy VX2235wm 3 53...

Page 57: ...062P SCREW BND T M3X6 BND T 1 21 N A 2106659700P HINGE RA VX2235 HINGE 5 15 TL 1 21 N A 2106659701P HINGE RB VX2235 HINGE 5 20 HY 1 21 N A 2106659702P HINGE RC VX2235 HINGE 5 20 ZJ 1 22 M SCW 0824 012...

Page 58: ...OTTOM 1 4 P 00008193 2012195600P VX2235 EPS TOP 1 5 BASE ASS Y 1 6 P 00008078 2013228805P POLYETHY BAG 1 7 DC 00008155 2438501252P OWNER GUIDE 1 8 DC 00008154 2002310604P GUARANT CARD QSG 1 9 A 000053...

Page 59: ...2 LCD Panel M220EW01 V 0 AUO E 00006218 2212011500P V901 13 Speaker Right E 00008180 2391302501P W902 14 Speaker Left E 00008181 2391302502P W901 15 Polyethy Bag 90CMX75CMX0 02t PE LD M MS 0808 1317 2...

Page 60: ...2235 HINGE FIX SECC T 1 0MM 5F09 1 38 N A 2071983400P METAL FITTG VX2235 SECC T 0 8MM 5F01 1 39 N A 2072253903P HEAT SINK JT178DP SPTE T 1MM 9H03 1 40 N A 2072253903P HEAT SINK JT178DP SPTE T 1MM 9H04...

Page 61: ...600 2253200096P RES CHIP 1 10W RC 0603 1 10W 0 ohm J T R135 1 122 E R 0405 6600 2253200096P RES CHIP 1 10W RC 0603 1 10W 0 ohm J T R139 1 123 E R 0405 6600 2253200096P RES CHIP 1 10W RC 0603 1 10W 0 o...

Page 62: ...10W 56 ohm J T R114 1 203 N A 2253256096P RES CHIP 1 10W RC 0603 1 10W 56 ohm J T R115 1 204 N A 2253256096P RES CHIP 1 10W RC 0603 1 10W 56 ohm J T R120 1 205 N A 2253256096P RES CHIP 1 10W RC 0603 1...

Page 63: ...00p K T C612 1 289 N A 2346110296P CAP CHIP 125 C CS 0603 X7R 50V 1000p K T C621 1 290 N A 2346110396P CAP CHIP 125 C CS 0603 X7R 50V 0 01u K T C609 1 291 N A 2346110396P CAP CHIP 125 C CS 0603 X7R 50...

Page 64: ...Q602 RB 1 372 E Q 0402 1180 2360301296P XISTOR NPN R SMD MMBT3904 F SOT23 DIODES Q104 RA 1 373 E Q 0402 1180 2360301296P XISTOR NPN R SMD MMBT3904 F SOT23 DIODES Q109 RA 1 374 E Q 0402 1180 2360301296...

Page 65: ...SWITCH RLS4148 T11 SOD80C ROHM D125 RB 1 457 E 00003534 2363600696P DIODE SWITCH RLS4148 T11 SOD80C ROHM D126 RB 1 458 E 00003534 2363600696P DIODE SWITCH RLS4148 T11 SOD80C ROHM D127 RB 1 459 E 00003...

Page 66: ...DE D128 RA 1 539 E 00003830 2364601396P DIODE SWITCH SMD 1N4148W 7 F SOD 123 DIODES D103 RD 1 540 E 00003830 2364601396P DIODE SWITCH SMD 1N4148W 7 F SOD 123 DIODES D104 RD 1 541 E 00003830 2364601396...

Page 67: ...30P P0 5 L157mm P980 1 620 A 00006132 2427130097P AC POWER CORD CHINA WALL 1 83M BLACK P951 1 621 A 00005362 2427130046P AC POWER CORD USA WALL 1 83M BLACK P951 1 622 N A 2427300043P LUG W WIRE OB 4...

Page 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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