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ViewSonic VX1935wm-1 

Model No. VS11307 

19” Color TFT LCD 

Display 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

(VX1935wm-1_SM Rev. 1a Sep. 2006) 

ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583

 

Service Manual 

Summary of Contents for VS11307

Page 1: ...ViewSonic VX1935wm 1 Model No VS11307 19 Color TFT LCD Display VX1935wm 1_SM Rev 1a Sep 2006 ViewSonic 381 Brea Canyon Road Walnut California 91789 USA 800 888 8583 Service Manual ...

Page 2: ... 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 tr...

Page 3: ...Notices 1 2 Specification 4 3 Front Panel Function Control Description 8 4 Circuit Description 13 5 Adjustment Procedure 14 6 Troubleshooting Flow Chart 32 7 Recommended Spare Parts List 34 8 Exploded Diagram and Exploded Parts List 37 9 Block Diagram 40 10 Schematic Diagrams 41 11 PCB Layout Diagrams 51 ...

Page 4: ...cable or power cord 8 Do not use abrasive cleaners waxes or solvents for your cleaning 9 Do not operate the product under the following conditions Extremely hot cold or humid environment Areas susceptible to excessive dust and dirt Near any appliance generating a strong magnetic field Place in direct sunlight 2 Caution No modification of any circuit should be attempted Service work should only be ...

Page 5: ...tainer 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 rotate nor 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 twis...

Page 6: ... by grasping the LCD panel That may cause Mura 2 Only touch the metal frame of the LCD panel or the front cover of the monitor Do not touch the surface of the polarizer 2 Surface of the LCD panel is pressed by fingers and that may cause Mura 3 Place the monitor on a clean and soft foam pad 3 Placing the monitor on foreign objects That could scratch the surface of the panel or cause Mura ...

Page 7: ...5 Max Yes Tilt 20 5 Yes Swivel No Pivot No Ergonomics Height Adjust No OSD Control 1 2 Yes Physical W x H x D 450 x 434 x 210mm Dimension Package W x H x D 545 515 162mm Physical Net Weight 5 6 Kg 12 3 lbs Weight Package Gross Weight 6 6 Kg 14 5 lbs Temperature 32 104 0 40 Operating Condition Humidity 20 80 Temperature 4 140 20 60 Storage Condition Humidity 10 90 Regulation CB MPR II UL CUL FCC B ...

Page 8: ...55 15 V Pixel Arrangement RGB VERTICAL STRIPE Pixel Pitch 0 2835 H X 0 2835 H MM Glass Treatment ANTI GLARE HARD COATING 3H of Backlights 4 CCFL TOP BOTTOM EDGE SIDE Backlight Life 40 000 HOURS MIN Luminance 5 point Condition CT 6500K Contrast Max Brightness Max Inverter Current 6 5mA 300 CD M2 TYP 240 CD M2 MIN AFTER 30 MINUTE WARM UP Brightness Uniformity 70 ENTIRE AREA MIN Contrast Ratio 1 700 ...

Page 9: ...250 50 000 27 000 N N 864 64 12 720 68 625 5 5 576 39 Performance no guarantee 16 800 600 56Hz SVGA 35 156 56 250 36 000 P P 1024 72 128 800 24 625 2 22 600 1 17 800 600 60Hz SVGA 37 879 60 317 40 000 P P 1056 128 88 800 40 628 4 23 600 1 18 800 600 72Hz SVGA 48 077 72 188 50 000 P P 1040 120 64 800 56 666 6 23 600 37 19 800 600 75Hz SVGA 46 875 75 000 49 500 P P 1056 80 160 800 16 625 3 21 600 1 ...

Page 10: ...5 317 59 978 121 750 N P 1864 144 232 1400 88 1089 4 32 1050 3 47 1400 1050 75Hz WXGA 82 278 74 867 156 000 N P 1896 144 248 1400 104 1099 4 42 1050 3 48 1440 900 60Hz WXGA 55 469 59 901 88 750 P N 1600 32 80 1440 48 926 6 17 900 3 49 1440 900 60Hz WXGA 55 935 59 887 106 500 N P 1904 152 232 1440 80 934 6 25 900 3 50 1440 900 75Hz WXGA 70 635 74 984 136 750 N P 1936 152 248 1440 96 942 6 33 900 3 ...

Page 11: ...480 60Hz resolution 1 hold for 10 sec Power Lock Unlock User won t be able to turn off the monitor 1 hold for 10 sec OSD Lock Unlock It will lock all functions 2 with signal hold for 3 sec Factory Mode Press exit factory mode Inter Factory Mode adjust white balance and setting Burn in Mode On or Off Remark All the short cuts function are only available while OSD off 3 2 Front Panel Hardware Contro...

Page 12: ... up and down buttons z Main Menu z Auto Image Adjust To automatically adjust H V Position Phase adjust and Clock adjust REMARK There may need to select Fine Tune function on Manual Image Adjust to optimized Performance for various VGA tolerance z Contrast Brightness To adjust the Contrast of the video and the backlight currency ...

Page 13: ...o Not Copy VX1935wm 1 10 z Input Select To select the signal sources of the Analog or Digital z Audio Adjust To adjust the audio volume and mute z Color Adjust To select the color temperature sRGB 9300 K 7500 K 6500 K 5400 K or user color ...

Page 14: ...ncy Pixel clock Resolution Model number and Serial No of the monitor z Image Adjust Horizontal Size To adjust the horizontal pixel clock of the video H V Position To adjust the horizontal and vertical position of the video Fine Tune To adjust the delay time of data and clock Sharpness To select the picture sharpness of display ...

Page 15: ...ed Chinese Resolution Notice Enable on OSD will notify the best picture quality resolution change the resolution to 1440 x 900 OSD Position To set OSD position OSD Timeout To set the displaying time of OSD OSD Background To select video background brightness z Memory Recall Restore default settings of Clock H V Position Phase Contrast Brightness Color temperature OSD position OSD timeout and Sharp...

Page 16: ... logic signal and provides the frequency reference for pixel clock generation The scaling IC is to converts the input signal ranging from VGA to WXGA into WXGA resolution that panel can acknowledge GENERAL DESCRIPTION The TSUM17AK is a high performance and fully integrated graphics processing IC solution for LCD monitors with resolutions up to WXGA It is configured with an integrated triple ADC PL...

Page 17: ...4 x 768 70Hz 56 5kHz 15 1024 x 768 72Hz 58 1kHz 16 1024 x 768 75Hz 60 0kHz 17 1024 x 768 85Hz 68 67kHz 18 1280 x 1024 60Hz 63 4kHz 19 1280 x 1024 75Hz 79 97kHz 20 1440 x 900 75Hz 70 63kHz 1 640 x 480 60Hz 31 5kHz 2 640 x 480 67Hz 35 0kHz 3 640 x 480 75Hz 37 5kHz 4 640 x 480 72Hz 37 9kHz 5 640 x 480 85Hz 43 27kHz 6 720 x 400 70Hz 31 5kHz 7 800 x 600 56Hz 35 1kHz 8 800 x 600 60Hz 37 9kHz 9 800 x 600...

Page 18: ...ark Screen The numbers of dead pixels should be compliant with the spec Figure 7 8 7 White Balance White Black Pattern The screen must have the pure white and black pattern no other color Figure 9 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 ...

Page 19: ...tory defaults 1 5 2 Auto Image Adjust 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 1 5 3 Firmware Test Pattern Burn In Mode Refer to Chapter 3 1 Hot Keys for Function Controls Make sure the F W...

Page 20: ...7 White Balance Test Signal 1440x900 60Hz Test Pattern White and Black Pattern 1 5 8 R G B Colors Contrast Test Signal 1440x900 60Hz Test Pattern R G B Color Intensities Pattern and 16 Gray Scale Pattern Check and see if each color is normal and distinguishable If not please return the unit to repair area 1 5 9 Screen Uniformity and Flicker Test Signal 1440x900 60Hz Test Pattern Full White Pattern...

Page 21: ...condary is compliant with the specification 1 5 14 Memory Recall After final QC step we have to erase all saved changes again and restore the factory defaults You should do Memory Recall again 1 5 15 Power Off Monitor Turn off the monitor by pressing Power button 2 Firmware Upgrade Procedure When you receive the returned monitor please check whether the firmware version is the latest If not please...

Page 22: ...ViewSonic Corporation Confidential Do Not Copy VX1935wm 1 19 ISP tool Use 12V adapter z ISP Download program procedure Hardware Connect status ISP connect method ...

Page 23: ...te final firmware version Example VX1935WM follow the same setting procedure 1 Check Monitor model HC154 2 Check Firmware version HC154_AL_150MX17A01R30 2 ps 3 Update final firmware version HC154_AL_150MX17A01R30 3 ps HC154_AL_150MX17A01R30 2 AL Analog LVDS DL Analog Digital LVDS AR Analog RSDS DR Analog Digital RSDS Panel type 150MX17A01 Firmware version R30 2 Change Panel Version update 1 Check ...

Page 24: ...C154 2 Check Firmware version HC154_AL_150MX17A00R30 2 ps 1 3 Check Panel type HSD150MX17A00 4 Change Panel ps 2 ps 1 HC154_AL_150MX17A00R30 2 AL Analog LVDS DL Analog Digital LVDS AR Analog RSDS DR Analog Digital RSDS Panel type 150MX17A01 Firmware version R30 2 ps 2 If change panel Form HSD150MX17A00 change to HSD150MX17A01 Panel type 150MX17A00 150MX17A01 Firmware change HC154_AL_150MX17A00R30 ...

Page 25: ...er board 4 Update final firmware version 5 Update EDID code Example VX1935WM follow the same setting procedure 1 Check Monitor model HC154 2 Check Firmware version HC154_AL_150MX17A01R30 2 ps ps HC154_AL_150MX17A01R30 2 AL Analog LVDS DL Analog Digital LVDS AR Analog RSDS DR Analog Digital RSDS Panel type 150MX17A01 Firmware version R30 2 3 Change scaler board 4 Update final firmware version HC154...

Page 26: ...tion 1 Enforce Mstar ISP_Tool program 2 After Enforcing Mstar ISP_Tool Program open Utility Window 3 Enforce Mstar ISP Utility Window s Connect function and Device Type s Dialog window will be opened then press Sure on Dialog window 4 Enforce Mstar ISP Utility window 之 Read function ...

Page 27: ...Enforce Mstar ISP Utility window s Read and choose the path and the file of Binary code 6 Choose the path and file of Binary code and Program Bin Ready Dialog window will be opened then press Sure on Dialog window 7 Enforce Mstar ISP Auto function of Utility window ...

Page 28: ...nfidential Do Not Copy VX1935wm 1 25 8 Enforce Mstar ISP Utility window Run and write in the data 9 After writing in the data Enforce Dis Connect function of Mstar ISP Utility window and the burn in procedure will be completed ...

Page 29: ... main board you have to do the DDC key in 2 If you find the DDC does not conform to the monitor you have to do the DDC key in Equipment Needed VX1935 Series Monitor DDC Card PC RS232 cable VGA Cable or DVI Cable DDC Card D8330 RS 232 Cable VGA Cable Step 1 Select VA903b in Working Model column to show EDID data on left ...

Page 30: ...onfidential Do Not Copy VX1935wm 1 27 Step 2 Modify the column of Week of Manufacture and Year of Manufacture and ID serial Number then press 2B button for changing serial number data Step 3 You will see the result as follows ...

Page 31: ... 1 2 Put the cushions on the monitor Figure 3 1 3 Put the Cables in the PE bag Figure 4 Figure 3 Figure 4 1 4 Place the monitor into the carton and then put all the accessories into the carton At last close the carton and seal it with tape Figure 5 6 Figure 5 Figure 6 Power Code Audio Cable D Sub DVI cables User s manual Warranty card CD package D Sub cable DVI cable Power code Audio cable Base sh...

Page 32: ... 29 1 2 Remove the ARM cover 1 3 Unfasten six screws to remove the ARM 2 Disassembly of Front Cover and Rear Cover 2 1 Unscrew ten screws to remove Rear Cover Disassembly Procedure 1 Disassembly of Stand unit from Monitor 1 1 Detach Base Unit from the monitor ...

Page 33: ...t Copy VX1935wm 1 30 2 3 Unfasten six screws to remove the D sub DVI connector and Power socket 2 4 Unfasten five screws and disconnect Inverter cables from panel to remove the shielding 2 2 Unfasten four screws to remove Hinge folder bracket ...

Page 34: ... Not Copy VX1935wm 1 31 2 5 Unfasten four screws to remove the Keypad board 2 6 Unfasten eight screws to remove Power Inverter board and D sub DVI connect board Power Inverter Board D sub DVI connect board Cables 2 7 Remove the Front Bezel ...

Page 35: ... ps YES NO Please reconnect power cable NO DISPLAY Please check if signal cable is connected properly Change Panel Please reconnect signal cable YES NO Display panel have horizontal line or vertical line Please change panel The backlight is OFF Please check inverter wire if properly connected 1 2 Please change panel or P I A board ps Display panel have block bar Please change panel ...

Page 36: ...rd Î Power Inverter Audio board Display panel with missing color Please check signal cable if connected properly and check all pins are good without bent 1 Please check if panel wire is loose connection or not 2 Please change panel 3 Audio output error Please change P I A board ps ...

Page 37: ... 5W 8R RIGHT E 00008004 30 V9031R50G000 18 Speaker 1 5W 8R LEFT E 00008005 30 V9031R51G000 19 LCD Module HSD190SGW1 A E 00008073 190SGW1 A00 20 Miscellaneous Bird Logo Brand For Viewsonic M 00008001 42 04260007G000 21 PE BAG 225 400MM P 00008004 61 03000003G000 22 PE BAG 500 650mm P 00008005 61 03000007G000 23 Craft Box TWN P 00008085 60 01000032G000 24 Craft Foam Left P 00008086 61 01000029G000 2...

Page 38: ...ezel B Button B Sub Assy 1 29 N A 43 90000072G300 SCREW M4x10 PH SW W NI ME 4 30 N A 43 90000066G410 SCREW M3x8 PHW LW CR3 BL TAP 4 31 N A 43 04030802G010 SCREW M3 8 FLAT NI TAP 4 32 N A 43 02040602G000 Screw M4 6 Wafer Head Black Ni Me 4 33 N A 43 01030802G110 SCREW M3x8 PAN WASHER NI TAP 12 34 N A 43 01030402G000 Screw M3 4 Pan Head Ni Me 2 35 M 00008001 42 04260007G000 Bird Logo Brand for Views...

Page 39: ...80000G000 PWR CORD AMERICAN UL CSA 125V 10A 1800m 1 67 CB 00008003 33 00070500G000 CABLE STEREO PHONE SZE33261B 1 68 N A 32 31012085G000 CONN W TO B 12P P 2 0 C1U2X XX0VX TACT 1 69 N A 32 31002083G000 CONN W TO B 2P P 2 0 C1U2X XX0VX TACT 2 70 N A 31 10400100G000 SW TACT 160GF DIP TSAC 2L 5 71 E 00008005 30 V9031R51G000 VA903 SPEAKER 1 5W 8R LEFT 1 72 E 00008004 30 V9031R50G000 VA903 SPEAKER 1 5W ...

Page 40: ...ViewSonic Corporation Confidential Do Not Copy VX1935wm 1 37 8 Exploded Diagram and Exploded Parts List ...

Page 41: ...G000 VX1935wm Back cover ABS HB Black 1 14 N A 40 03010030G000 VX1935wmButton 3 KeyABS HB Pantone Black 1 15 N A 40 03010031G000 VX1935wmButton 2 KeyABS HB Pantone Black 1 16 N A 40 04020010G000 VX1935wm Power LENS PC 1 17 C 00008107 40 05010019G000 VX1935wm Arm_front cover ABS HB Silver 1 18 C 00008108 40 05010020G000 VX1935wm Arm_Back cover ABS HB Silver 1 19 PL 00008024 40 06010019G000 VX1935wm...

Page 42: ...N VEI 1 5 A 00008004 33 E3980011G000 PWR CORD TWN 125V 7A 1 8M 3C BLK Linetek 1 6 P 00008005 61 03000007G000 PE BAG 500 650mm 1 7 P 00008004 61 03000003G000 U171 PE BAG 225 400MM 1 8 P 00008086 61 01000029G000 VX1935 END CAP EPS 1 9 P 00008088 61 01000034G000 VX1935 END CAP R EPS 1 10 DC 00008099 42 01260011G000 Mylar 425 275 0 1 Protective Film for 19 W 1 11 P 00008085 60 01000032G000 VX1935 Cart...

Page 43: ...1 TDA7496 DC DC U401 1084 33PM 3 3V SPEAKER VDD 5 SCALAR U1 TSUM17AK INVERTER MP 1038EY DC DC U402 1084 18PM 1 8V PANEL DISPLAY AUDIO INPUT H SYNC V SYNC BL_EN BL BRIGHT R G BINPUT H V SYNC VGA D SUB SCL SDA VGA 5V EEPROM U3 24C16 DDC U501 24C02 OSC 12M Y1 TMDS SYNC SCL_DVI SDA_DVI DVI5V DDC U601 24C02 Flash U2 SST25VH010 ...

Page 44: ...R 17 OUTR 18 VCCR 19 LGR 20 PRL 22 PGR 21 PGL 28 LGL 27 VCCL 26 OUTL 25 UGL 24 BTL 23 U1 R9 R3 R10 C6 IC_VCC IC_VCC R17 G D S Q2 C23 D14 C19 C20 R28 R29 R22 R30 R31 R23 R32 R33 R24 LI LI FB4 FB3 FB2 C14 FB1 C15 C16 C17 LV1 LV2 LV3 LV4 C22 R18 R7 1 2 CN1A LV4 LV3 LV2 LV1 C31 FB1 FB4 C32 C34 FB2 FB3 C33 C4 D1 D2 D3 D4 D6 D5 D8 D7 C21 R8 ON OFF R5 R2 G D S Q1 C5 R6 D15 R34 C9 R35 C10 R36 C11 R37 C12 ...

Page 45: ...32 R233 A K R IC230 R230 1 2 PC201A 12V R231 R263 C261 7 8 INVERTER 3 4 PC201B C120 C123 ZD120 5 2V 3A 5 2V D240 R240B C240 C244 L240 C242 RTN 9 10 ZD121 11 12 F101 CX101 CY101 VA101 1 4 2 3 LF102 TH101 3 2 4 1 BD101 L N FG CN100 R101 CY102 R102 1 4 2 3 LF101 R241 ZD260 R264 C243 C264 C241 R113 CY104 ZD110 R123 R124 R122 C124 Drain 1 GND 2 Vcc 3 FB 4 Ilimit 6 NC 5 U101 R235 R260A R240A R262 C232 R...

Page 46: ...R503 R504 C506 C510 C502 C503 GND 1 GND 2 GND 3 INL 4 VAROUT_L 5 VOLUME 6 VAROUT_R 7 NC 8 INR 9 SVR 10 STBY 11 MUTE 12 GND 13 OUTR 14 VS 15 VS 16 OUTL 17 GND 18 GND 19 GND 20 U501 R510 C505 R505 C509 R507 R501 C508 R511 R506 C501 C507 R502 FB504 FB502 R509 R508 C512 C511 1 2 3 4 5 CN501 FB501 FB503 R512 AUDIO_MUTE AUDIO_STBY Volome SPL SPR 5V 12V Q501 ...

Page 47: ...P NC RB4 RB2N NC RB5 RB3P NC RB6 RB3N NC RB7 GB1P NC GB2 GB1N NC GB3 GB2P NC GB4 GB2N NC GB5 GB3P NC GB6 GB3N NC GB7 BB3P NC BB6 BB3N NC BB7 ESP OSP GPO0 GPO1 GPO2 GPO3 GPO4 GPO5 GPO6 GPIO_P02 SAR3 GPIO_P03 GPIO_P22 GPIO_P23 AVDD_PLL AVDD_MPLL AVDD_MPLL VDDP VDDP VDDP VDDC AVDD_ADC GND R618 N C 4 7K 1 16W R45 10K 1 16W H3 1 R16 NC Q3 PMBS3906 H12 1 R61 220K 1 16W C5 0 1uF 16V TP9 D1 LL4148WP TP6 R...

Page 48: ...D104 BAT54WSPT 2 3 1 R119 1K 0402 1 D103 BAT54WSPT 2 3 1 R118 1K 0402 1 U101 MAX1748 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 RDY FB INTG IN GND REF FBP FBN SHDN DRVN SUPN DRVP SUPP PGND LX TGND C118 0 1uF 0402 C123 0 1uF 0603 U102 KIA3820FK 1 2 3 4 5 6 7 8 VGH VGH_M RE CE VDD VDPM GND VFLK D105 BAT54WSPT 2 3 1 R122 15K 0402 1 C112 0 1uF 0402 R112 348K 0402 1 VGL L101 LK CD032 A01 R121 13K 0603 R105...

Page 49: ... C218 0 1uF 16V C210 0 1uF 16V 0402 R214 69 8 R217 169 R203 10 1 16W 0402 C219 0 1uF 16V R220 57 6 C238 1uF 16V 0805 R210 107 C202 0 1uF 16V 0402 C237 1uF 16V 0805 U202 G674L240T1U 1 2 3 4 5 RESET VCC GND NC CD C230 1uF 16V 0805 C220 0 1uF 16V R216 26 7 C235 1uF 16V 0805 R206 10 1 16W 0402 R208 22 6K 1 16W 0402 C234 1uF 16V 0805 R221 182 C236 1uF 16V 0805 C212 0 1uF 16V R211 178 C227 1uF 16V 0805 ...

Page 50: ...F 16V GB5 R309 100 1 16W C308 0 1uF 16V GA3 C323 0 1uF 16V 0402 R320 100 1 16W BA2 3TP2A 3TP1C RA4 RB1 6TP1C RB2 3TP1A 2S1 2TP2C BA0 GA5 R319 100 1 16W C306 0 1uF 16V 5TP1B 1RPO 3TP1B BB3 CLKBP 4S720 2RPI 3RPO RA2 C326 0 1uF 16V 0402 BA4 GA1 R305 NC 0402 1RPI 5S1 C331 0 1uF 16V 0402 C324 0 1uF 16V 0402 X301 X_IC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32...

Page 51: ...W C422 10uF 16V C403 0 1uF C406 0 1uF 16V U401 AIC1084 33PM 3 1 2 VIN GND VOUT C418 0 1uF 16V R403 100 1 16W R412 NC C411 0 1uF 16V Q405 NC R410 NC C407 0 1uF 16V C612 0 1uF 16V C613 0 1uF 16V VDD 5 5V 3_3V R418 1K 1 16W C405 100uF 16V C420 0 1uF 16V C413 10uF 16V R425 0 1 16W C415 0 1uF 16V R424 0 1 16W R429 10K 1 16W R428 NC C414 10uF 16V R411 4 7K 1 16W R407 0 1 16W R406 22 1 16W C410 0 1uF 16V...

Page 52: ... 2 R519 100 1 16W U501 AT24C02 1 2 3 4 5 6 7 8 A0 A1 A2 GND SDA SCLK WP VCC R507 56 1 16W R517 4 7K 1 16W D510 UDZS5 6B 1 2 R516 1K 1 16W R509 4 7K 1 16W CN501 CONN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 R513 2 2K 1 16W FB501 0 ohm R502 56 1 16W R520 56 1 16W FB502 0 ohm D512 UDZS5 6B 1 2 D508 BAV70 C504 0 22uF D507 BAV99 3 1 2 D501 BAV99 3 1 2 FB504 0 ohm C511 0 1uF R501 75 1 16W R508 4 7K 1 1...

Page 53: ...V99 3 1 2 R603 NC CN601 CONN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 D603 MLL5232B 5 6V R611 10K R604 NC R613 10 C610 NC 0 1uF D601 MLL5232B 5 6V D609 BAV99 3 1 2 C607 NC 0 1uF R609 10 R602 100 D610 BAV99 3 1 2 D607 BAV99 3 1 2 R601 100 R607 10 C611 0 1uF R615 4 7K 1 16W R610 10 D612 BAV99 3 1 2 U601 AT24C02N 10SC 1 2 3 4 5 6 7 8 A0 A1 A2 GND SDA SCL WP VCC C604 NC 0 1uF C60...

Page 54: ...TOP SIDE 11 PCB Layout Diagrams ViewSonic Corporation Confidential Do Not Copy VX1935wm 1 51 ...

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Page 68: ...ircuit Description 5 Adjustment Procedure 6 Troubleshooting Flow Chart 7 Recommended Spare Parts List 8 Exploded Diagram and Exploded Parts List 9 Block Diagrams 10 Schematic Diagrams 11 PCB Layout Diagrams B Are you satisfied with this Service Manual Item Excellent Good Fair Bad 1 Service Manual Content 2 Service Manual Layout 3 The form and listing C Do you have any other opinions or suggestions...

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