ViewSonic ve510b/s-21 User Manual Download | Manualshive

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Model No.

V

L

CD

S

27996-1W

1

5

”

Color

TFT LCD Display

Service Manual

ViewSonic

V

A521

ViewSonic

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

(

V

A521

/VE510b/s-2

_

SM_

819

_1c

Rev. 1

c

Oct

.

200

4

)

V

E510b/s-2

1

Model No.

V

L

CD

S

27996-

2

W

/-3W

1
2
3
...
»

Summary of Contents for ve510b/s-21

Page 1: ...7996 1W 15 Color TFT LCD Display Service Manual ViewSonic VA521 ViewSonic 381 Brea Canyon Road Walnut California 91789 USA 800 888 8583 VA521 VE510b s 2_SM_819_1c Rev 1c Oct 2004 VE510b s 21 Model No VLCDS27996 2W 3W ...

Page 2: ...ular 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 ViewSonic is a registered trademark of ViewSonic Corporation All other trademarks used within this document are the property of their respective owners Optiquest is a reg...

Page 3: ...k Diagram 10 Schematic Diagrams 7 Recommended Spare Parts List 1 Precautions and Safety Notices 5 Adjusting Procedure 8 Exploded Diagram And Spare Parts List 11 PCB Layout Diagrams 1 2 5 10 16 17 19 35 44 45 51 6 Trouble Shooting Flow Chart ii ViewSonic Corporation Confidential Do Not Copy VA521 VE510b s 2 ...

Page 4: ...rom magnetic objects motors TV sets and transformer Do not place heavy objects on the monitor or power cord 1 2 PRODUCT SAFETY NOTICE Many electrical and mechanical parts in this chassis have special safety visual inspections and the protection afforded by them cannot necessarily be obtained by using replacement components rated for higher voltages wattage etc Before replacing any of these compone...

Page 5: ... 3 4 5 TIMING 640 350 70Hz 640 480 60Hz 640 480 67Hz 640 480 75Hz 640 480 72Hz Pixel Rate 25 175MHz 25 175MHz 30 240MHz 31 500MHz 31 500MHz H TOTAL 31 778us 31 778us 28 571us 26 667us 26 413us H DISPLAY 25 422us 25 422us 21 164us 20 317us 20 317us H B Porch 1 907us 1 907us 3 175us 3 810us 4 063us H Width 3 813us 3 813us 2 116us 2 032us 0 270us H Border 0 318us 0 318us 0 000us 0 000us 0 000us V TOT...

Page 6: ...TEM 11 12 13 14 15 TIMING 800 600 75Hz 800 600 85Hz 832 624 74 5Hz 1024 768 60Hz 1024 768 70Hz Pixel Rate 48 500MHz 56 250MHz 57 280MHz 65 000MHz 75 000MHz H TOTAL 21 333us 18 631us 20 112us 20 677us 17 707us H DISPLAY 16 162us 14 222us 14 525us 15 754us 13 653us H B Porch 3 232us 2 702us 3 771us 2 462us 1 920us H Width 1 616us 1 138us 1 118us 2 092us 1 813us H Border 0 000us 0 000us 0 000us 0 000...

Page 7: ...IN CONNECTOR 1 Red Video 6 Red GND 11 NC 2 Green Video 7 Green GND 12 SDA 3 Blue Video 8 Blue GND 13 H sync 4 NC 9 5V for DDC 14 V sync 5 GND 10 GND 15 SCL 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 SIGNAL LEVEL CONNECTOR SIGNAL DESCRIPTION R RED 0 7vp p VIDEO G GREEN 0 7vp p VIDEO B BLUE 0 7vp p VIDEO H H SYNC TTL positive or negative V V SYNC TTL positive or negative SDA DDC1 2B TTL SCL DDC1 2B TTL 4 V...

Page 8: ...nu Power On Off Selects a highlighted control Also displays the control screen for the selected control and toggles between control pairs Power light Front Control Panel Main Menu with OnView controls 3 Front Panel Function Control Description 5 ViewSonic Corporation Confidential Do Not Copy VA521 VE510b s 2 ...

Page 9: ...ize your display Adjust your computer s graphic card so that it outputs a video signal 1024 x 768 60 Hz to the LCD display Look for instructions on changing the refresh rate in your graphic card s user guide If necessary make small adjustments using H POSITION and V POSITION until the screen image is completely visible NOTE All OnView menus and adjustment screens disappear automatically after abou...

Page 10: ...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 sRGB sRGB 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 or...

Page 11: ...8 60 KHz V Frequency 60 00 Hz Pixel Clock 65 00 MHz Resolution 1024 x 768 Model Number VLCDS23585 2W Serial No www viewsonic com Image Adjust The Image Adjust controls are explained below Image Adjust 1 EXIT 2 SELECT H V Position H Size Fine Tune Sharpness Fine Tune sharpens focus by aligning the illuminated text and or graphic characters NOTE Try the Auto Adjust before using the Fine Tune control...

Page 12: ...se the language used in OSD Memory Recall returns adjustments to the original factory settings if the display is operating in a factory Preset Timing Mode listed in this user guide Short Cut Key Function Key 5 Keys 1 2 1 Main Menu 2 Auto Image Adjust or to immediately activate Contrast menu It should be change to Brightness OSD by push button 2 recall Contrast or Brightness while in the Contrast o...

Page 13: ... The scaling IC is to converts the input signal ranging from VGA to XGA into XGA resolution that panel can acknowledge General Embedded dual DDC support DDC1 DDC2B DDC CI Zoom scaling up and down Embedded Pattern Generator No external memory required Require only one crystal to generate all timing Embedded reset control output Embedded crystal output to MICROP 3 channels 8 bits PWM output and sele...

Page 14: ...Display TCON VIDEO 8 Port 54 pins LVDS RSDS TTLO RSDS TTLO RSDS TTLIO TTLO TTLIO Pin NO 6 bits Dual RSDS 6 bits Single RSDS 8 6 bits Dual Single LVDS 8 bits Dual Single TTL 6 bits Dual TTL 6 bits Single TTL Note 51 S 3 TCON 2 PWM2 S 3 TCON 2 PWM2 S 3 TCON 2 PWM2 S 3 TCON 2 PWM2 S 3 TCON 2 PWM2 S 3 TCON 2 PWM2 1 2 3 2mA 52 S 2 TCON 3 S 2 TCON 3 S 2 TCON 3 S 2 BBLU 1 TCON 3 S 2 TCON 3 S 2 TCON 3 1 2...

Page 15: ...5 88 AB2N NC TECLKN ABLU 4 T17 ABLU 4 ABLU 4 89 AB1P NC TECP ABLU 3 T18 ABLU 3 ABLU 3 90 BB1N NC TECN ABLU 2 T19 ABLU 2 ABLU 2 91 ACLKP NC TEBP ABLU 1 T20 TCON 1 TCON 1 92 ACLKN NC TEBN ABLU 0 T21 TCON 0 TCON 0 93 AG3P NC TEAP AGRN 7 T22 AGRN 7 AGRN 7 94 AG3N NC TEAN AGRN 6 T23 AGRN 6 AGRN 6 99 AG2P TCON 11 NC AGRN 5 T24 AGRN 5 AGRN 5 100 AG2N TCON 10 NC AGRN 4 T25 AGRN 4 AGRN 4 101 AG1P TCON 9 NC...

Page 16: ...ngle TTL mode TMDS 18 pins Name I O Pin No Description Note TMDS_TST PWM1 AIO 9 TMDS_TEST Pin PWM1 Power on latch for serial parallel port TMDS_GND G 10 TMDS_VDD P 11 3 3V NC A 12 Impedance Match Reference TMDS_VDD P 13 3 3V NC I 14 Differential Data Input NC I 15 Differential Data Input TMDS_GND G 16 NC I 17 Differential Data Input NC I 18 Differential Data Input TMDS_VDD P 19 3 3V NC I 20 Differ...

Page 17: ...A no slew TCON 5 I 126 TCON 5 2 3 5 TCON 7 PWM1 IO 125 TCON 7 PWM1 1 2 3 5 6 8 8mA no slew Power Ground 22 pins Name I O Pin No Description 3 3V Power P 49 121 VCCIO 2 3 3V Ground G 48 120 GNDIO 2 3 3V Power P 58 71 83 95 110 PVCC 5 3 3V Ground G 57 72 84 96 109 PGND 5 2 5V Power P 45 69 98 127 VCCK 4 2 5V Ground G 44 70 97 128 GNDK 4 Note 1 TTL compatible CMOS Input Vt 1 7V VCC 3 3V 2 5V toleranc...

Page 18: ...e MTV312M can work on 5V or 3 3V power supply system In 5V power system the VDD pin is connected to 5V power and the VDD3 needs an external capacitor all output pins can swing from 0 5V input pins can accept 0 5V input range And ADC conversion range is 5V However X1 and X2 pins must be kept below 3 3V C MTV312M64 The MTV312M micro controller is an 8051 CPU core embedded device especially tailored ...

Page 19: ...tage A Timing 1024x768 60Hz 48KHz B Pattern The picture of Shut down windows or Full screen pixel ON OFF pattern C Adjust V com to let the center of the screen no flash 2 Eeprom Initial A Timing 1024x768 60Hz B Pattern Cross hatch C Switch off the power and press the and 2 key simultaneously then switch on the power At this time we can enter into the factory mode when press the 1 key D Select the ...

Page 20: ...failed or not Check main board backlight_on signal Check Q801 D S short or not I801 failed R807 broken or not Check Q802 D813 failed or not If there had Sawtooth waveform on DC output Check I802 I803 If there had Sawtooth waveform on DC output Check D809 D811 If there had Sawtooth waveform on DC outputr Check 5V on I901 pin6 Check I901 pin1 voltage 1 0volts 3 0volts while inverter turn on Check Q9...

Page 21: ...or dark Check uP I104 Reset is Ok No Change I104 Yes Check Reset circuit C117 D113 Q101 No Yes Press 1 key if OSD menu is on display Yes Check Keypad pcb is OK No Check if Inverter is Ok Yes Check Power region with no backlight No Yes Check X102 Crystal 24 576MHz is working Change X102 No Check I101 Pin 46 47 data bus have signal Change I101 LCD controller IC No Yes Check panel Powers VLCD_3V3 VLC...

Page 22: ...528 2055103400 6P52 1 15 LABEL VIEWSONIC OPEN STAND LABEL LCD M LB 0813 0769 2055613293 5B10 1 16 SERIAL LABEL VIEWSONIC LCD SERIAL LABEL M LB 0813 0002 2056603050 6P55 6P54 6P51 3 17 Electronic LCD PANEL CLAA150XG08V CPT M LCD 0826 0223 2212004701 V901 1 18 1 HINGE VA521 5 20 F S M MS 0808 9216 2106656300 2C20 RA Interchangeable 1 18 2 HINGE VA521 5 20 T L M MS 0808 9216 2106656301 2C20 RB Interc...

Page 23: ...13392 6P14 14 LABEL VE510B 2 VLCDS27996 3W 040728 M LB 0830 0714 2055131836 6P50 1 15 LABEL JK0936F WEN M LB 0813 0528 2055103400 6P52 1 16 LABEL VIEWSONIC OPEN STAND LABEL LCD M LB 0813 0769 2055613293 5B10 1 17 SERIAL LABEL VIEWSONIC LCD SERIAL LABEL M LB 0813 0002 2056603050 6P55 6P54 6P51 1 18 Electronic LCD PANEL CLAA150XG08V CPT M LCD 0826 0223 2212004701 V901 1 HINGE VA521 5 20 F S M MS 080...

Page 24: ...36F WEN M LB 0813 0528 2055103400 6P52 1 16 LABEL VIEWSONIC OPEN STAND LABEL LCD M LB 0813 0769 2055613293 5B10 1 17 SERIAL LABEL VIEWSONIC LCD SERIAL LABEL M LB 0813 0002 2056603050 6P55 6P54 6P51 1 18 Electronic LCD PANEL CLAA150XG08V CPT M LCD 0826 0223 2212004701 V901 1 19 HINGE VA521 5 20 F S M MS 0808 9216 2106656300 2C20 RA 1 20 HINGE VA521 5 20 T L M MS 0808 9216 2106656301 2C20 RB 1 21 Mi...

Page 25: ...0603 1 10W 0 ohm J T L101 L102 L103 R102 R105 R107 R111 R125 R197 9 8 M SCW 0824 0811 2080003700 SCREW SPE 1SZZTER001A M3 6L MSWR17 FZMY1 1F18 1F19 8 9 E R 0405 6419 2253247296 RES CHIP 1 10W RC 0603 1 10W 4 7Kohm J T R128 R129 R149 R157 R159 R163 R181 7 10 M SCW 0824 0285 2084730082 SCREW BND T M3X8 BND T 9S01 2C22 7 11 N A 2346147396 CAP CHIP 125 C CS 0603 X7R 50V 0 047u K T C102 RA C103 RA C104...

Page 26: ...04 3 49 N A 2335310841 CAP ELE LOW ESR 105 C EC 1000u 16V 10 16 P 5 0 C C816 C817 C819 3 50 M LB 0813 0002 2056603050 SERIAL LABEL VIEWSONIC LCD SERIAL LABEL 6P55 6P54 6P51 3 51 N A 2379312196 BEAD HI IMPEDANCE Z 120ohm 100MHZ 0603 200mA L104 L105 2 52 E Q 0402 1624 2360301696 XISTOR NPN R SMD PMBS3904 SOT 23 PHILIPS Q106 RA Q109 RA 2 53 E Q 0402 1180 2360301296 XISTOR NPN R SMD MMBT3904 SOT 23 DI...

Page 27: ... 8 AO I902 RB 1 122 N A 2251426126 RES CHIP 1 4 RC 1206 1 4 W 26 1Kohm F T R808 1 123 N A 2253447096 RES CHIP 1 4 RC 1206 1 4 W 47ohm J T R809 1 124 E R 0405 5990 2253310296 RES CHIP 1 8 RC 0805 1 8 W 1Kohm J T R811 1 125 N A 2253412396 RES CHIP 1 4 RC 1206 1 4 W 12Kohm J T R819 1 126 N A 2251322016 RES CHIP 1 8 RC 0805 1 8 W 2 2Kohm F T R820 1 127 N A 2251310006 RES CHIP 1 8 RC 0805 1 8 W 100 ohm...

Page 28: ...192 M SCW 0824 6820 2085740062 SCREW B OTW B OTW M4x6 1F15 1 193 M MS 0808 9220 2071668700 SHIELD PLATE SPTE T 0 3MM FOR MAIN BOARD 1F16 1 194 M MS 0808 9221 2072457000 INSULATOR MYLAR BLACK 94V0 T 0 5 SIGNAL 1F20 1 195 M MS 0808 9222 2071670400 SHIELD PLATE SPTE T 0 3MM TOP 1F21 1 196 M MS 0808 9223 2071670500 SHIELD PLATE SPTE T 0 3MM DOWN 1F22 1 197 M LB 0813 0959 2055613392 LABEL VSC HIGH VOLT...

Page 29: ...ODES MINIMELF D101 RB D103 RB D104 RB D106 RB D107 RB D108 RB D113 RB D114 RB D116 RB D117 RB D119 RB D120 RB D121 RB D122 RB 14 6 M WR 0828 0450 2428106075 JUMPER 0 6f 7 50MM J801 J802 J803 J808 J809 J810 J811 J901 J902 J903 J909 J910 J911 J912 14 7 E R 0405 6600 2253200096 RES CHIP 1 10W RC 0603 1 10W 0 ohm J T L101 L102 L103 R102 R105 R107 R111 R125 R197 9 8 M SCW 0824 0811 2080003700 SCREW SPE...

Page 30: ... A 2253410096 RES CHIP 1 4 RC 1206 1 4 W 10ohm J T R807 R810 R818 R831 4 32 N A 2259210308 RES CHIP NETWORKS 8P4R 1 16W 10Kohm J P 0 8 RN1 RN2 RN3 RN4 4 33 E C 0404 4423 2341122096 CAP CHIP 125 C CS 0603 COG 50V 22p J T C119 C121 C145 C146 4 34 E C 0404 4224 2341147096 CAP CHIP 125 C CS 0603 COG 50V 47p J T C111 C113 C114 C115 4 35 E D 0403 1105 2363217595 DIODE RECT 20D8 IR D801 RA D802 RA D803 R...

Page 31: ...000 METAL FITTG SECC T 0 8MM FOR CPT VA521 1F11 1 88 M MS 0808 9219 2072456900 INSULATOR MYLAR BLACK 94V0 T 0 5 POWER 1F12 1 89 N A 2072457300 INSULATOR MYLAR BLACK 94V0 T 0 5 BOTTOM 1F13 1 90 M SCW 0824 6820 2085740062 SCREW B OTW B OTW M4x6 1F15 1 91 M MS 0808 9220 2071668700 SHIELD PLATE SPTE T 0 3MM FOR MAIN BOARD 1F16 1 92 M MS 0808 9221 2072457000 INSULATOR MYLAR BLACK 94V0 T 0 5 SIGNAL 1F20...

Page 32: ...M J804 1 164 E R 0405 2725 2233410095 RES CBN 1 4 S RD 1 4WS 10 00 J T52 MINI J805 1 165 M WR 0828 0451 2428106150 JUMPER 0 6f 15 00MM J905 1 166 M MS 0808 9218 2434410300 AL SHIELDING TAPE W25 L30mm T0 06 AL K901 1 167 N A 2371118301 COIL CHOKE 18mH 0 32mm 90TS UU 10 5 L805 1 168 N A 2371150901 COIL CHOKE 5uH 0 5mm 19Ts R3 15 I 2 0A L807 1 169 N A 2404301112 CONNECTOR JST PH 13P SIDE P 2 0 OR EQU...

Page 33: ... T R921 1 212 N A 2251340206 RES CHIP 1 8 RC 0805 1 8W 402 ohm F T R924 1 213 N A 2259222008 RES CHIP NETWORKS 8P4R 1 16W 22 ohm J P 0 8 RN6 1 214 N A 2407413100 SOCKET AC INLET 0711 2 P10 9 INALWAYS S801 RA 1 215 N A 2407413300 SOCKET AC INLET SC 8R F15A9 SUPERCOM S801 RB 1 216 N A 2374228004 XFORMER POWR ER 28 2UEW 0 27 2 32Ts 1 8mH T801 1 217 N A 2374300700 XFORMER INVERTER EEL 19 16 2080Ts 0 4...

Page 34: ...1 L102 L103 R102 R105 R107 R111 R125 R197 9 8 M SCW 0824 0811 2080003700 SCREW SPE 1SZZTER001A M3 6L MSWR17 FZMY1 1F18 1F19 8 9 M SCW 0824 0285 2084730082 SCREW BND T M3X8 BND T 9S01 2C22 7 10 E R 0405 6419 2253247296 RES CHIP 1 10W RC 0603 1 10W 4 7Kohm J T R128 R129 R149 R157 R159 R163 R181 7 11 N A 2346147396 CAP CHIP 125 C CS 0603 X7R 50V 0 047u K T C102 RA C103 RA C104 RA C106 RA C107 RA C109...

Page 35: ...905 RA 3 48 E Q 0402 0428 2361302591 XISTOR NPN R 2SC945 P TO 92 NEC Q802 RB Q903 RB Q905 RB 3 49 N A 2251275096 RES CHIP 1 10 RC 0603 1 10W 75 ohm F T R104 R109 R113 3 50 E R 0405 6603 2253222096 RES CHIP 1 10W RC 0603 1 10W 22 ohm J T R171 R172 R195 3 51 M SCW 0824 6719 2082630062 SCREW M3X6 P 0 5 1F17 1F23 2 52 M SCW 0824 6745 2084740104 SCREW BND T M4X10 BND T BLK 2C23 2 53 M SCW 0824 0123 208...

Page 36: ...xt0 3 ADD PE LD 6P85 1 119 N A 2072260600 HEAT SINK AL 72 20 T1 5MM 9H01 1 120 N A 2336310613 CAP MINI ELE 105 C EC 10u 16V 4 7 P 2 5 T C117 1 121 N A 2336310713 CAP MINI ELE 105 C EC 100u 16V 6 3 7 P 2 5 T C156 1 122 N A 2357568608 EC HI RIPPLE 105C 400V EC 68u 400V 16 32 P 7 5 S C805 1 123 N A 2297427212 CAP PPP PPN 2700P 250V P 10 0 K K C806 1 124 E C 0404 2272 2283110291 CAP CER CK45B 1000 000...

Page 37: ...0 2253310296 RES CHIP 1 8 RC 0805 1 8 W 1Kohm J T R811 1 191 N A 2253412396 RES CHIP 1 4 RC 1206 1 4 W 12Kohm J T R819 1 192 N A 2251322016 RES CHIP 1 8 RC 0805 1 8 W 2 2Kohm F T R820 1 193 N A 2251310006 RES CHIP 1 8 RC 0805 1 8 W 100 ohm F T R821 1 194 N A 2251327416 RES CHIP 1 8 RC 0805 1 8 W 2 74Kohm F T R822 1 195 N A 2251320026 RES CHIP 1 8 RC 0805 1 8 W 20Kohm F T R823 1 196 N A 2232412295 ...

Page 38: ... 6 7 10 11 13 12 15 1 FIG 1 MAIN PCB ASS Y POWER PCB ASS Y 4 X2 KEYPAD PCB ASS Y FIG 1 X2 25 19 X2 5 P961 FIG 2 FIG 2 26 1 2 1 3 14 2 14 3 15 2 15 3 20 2 8 Exploded Diagram And Spare Parts List 8 1 Exploded Diagram 35 ViewSonic Corporation Confidential Do Not Copy VA521 VE510b s 2 ...

Page 39: ...P701 P801 P981 KEYPAD PCB MAIN PCB I O CABLE P961 P902 P901 P107 P105 P102 P101 P801 P802 for M Star Scaler P107 for Realtek Scaler P101 P104 MAIN PCB P105 36 ViewSonic Corporation Confidential Do Not Copy VA521 VE510b s 2 ...

Page 40: ...IC E015 017 1 2C02 16 1 M MS 0808 9216 2106656300 HINGE VA521 5 20 F S 1 2C20 RA Interchangeable 16 2 M MS 0808 9216 2106656301 HINGE VA521 5 20 T L 1 2C20 RB Interchangeable 17 M MS 0808 9224 2105251600 SPRING PLATE VA521 PB CU T 0 2MM 1 2C21 18 M SCW 0824 0285 2084730082 SCREW BND T M3X8 BND T 6 2C22 19 M SCW 0824 6745 2084740104 SCREW BND T M4X10 BND T BLK 2 2C23 20 PL PS 0715 0986 2028258002 S...

Page 41: ...50XG08V CPT 1 V901 Description EXPLODED PARTS LIST VE510s 2 16 ViewSonic Model Number VLCDS27996 Rev 1c Item ViewSonic P N Ref P N Description Q TY Location Remark 1 C FP 0301 0991 2024266704 FRONT BEZEL ASS Y ABS 94HB MIDNIGHT GRAY 1 1F01 2 M MS 0808 9212 2071969000 METAL FITTG SECC T 0 8MM FOR CPT VA521 1 1F11 3 M MS 0808 9219 2072456900 INSULATOR MYLAR BLACK 94V0 T 0 5 POWER 1 1F12 4 M SCW 0824...

Page 42: ... then disconnect the power cable from the electrical outlet Moreover when you disassemble the monitor be sure to put the screws in a safe place and separate them according to grouping Disassembly of Front Cover 1 Unscrew two screws of Rear Cover 2 Remove two Hinge Cover Hinge Cover 2084740104 X2 Hinge Cover Front Cover 3 Remove Front Cover from Monitor 39 ViewSonic Corporation Confidential Do Not ...

Page 43: ...Rear Cover and LCD Panel module from the monitor 3 Unscrew one screw that secure M B Shielding Plate 4 Unscrew one screw that secure Inverter down Shielding Plate 5 Remove Inverter top Shielding Plate X2 2084730062 2082630062 X1 2082630062 X1 40 ViewSonic Corporation Confidential Do Not Copy VA521 VE510b s 2 ...

Page 44: ...s to remove Inverter connector and LCD Panel FPC cable 7 Unscrew four screws that secure Metal Fitting and remove LCD Panel from Metal Fitting A A X4 2080002200 A 41 ViewSonic Corporation Confidential Do Not Copy VA521 VE510b s 2 ...

Page 45: ...crews that secure Main Board and disconnect the wires which are connected to Main Board and remove Main Board 2 Unscrew four screws that secure Power Board to remove Power Board X4 2080003700 X4 2080003700 42 ViewSonic Corporation Confidential Do Not Copy VA521 VE510b s 2 ...

Page 46: ...sassembly of Stand unit from Rear Cover 1 Unscrew six screws that secure Stand unit and detach Stand unit from the monitor X6 2084730082 43 ViewSonic Corporation Confidential Do Not Copy VA521 VE510b s 2 ...

Page 47: ...SCL H Sync B R I106 DC DC I101 RTD2013 XGA RSDS SCALAR I104 MTV312M64 KEY PAD LED I105 24LC16 EEPROM SWITCHING POWER SUPPLY LCD PANEL V Sync 3V3 3V 2V5 DDC SDA SDA SCL SDA HW RESET I901 OZ9RR INVERTER AC 110 220V INPUT 12V ONBACKLITE BR BG BB BCLK FXDIO XSTB POL BXDIO YCLK YDIO YOEE 3V3 3V3 12V ONBACKLITE PANEL POWER ...

Page 48: ...8 1K R189 0R 0805 C166 100nF C179 100nF R183 4 7K 0805 Q107 MMBT3906 1 2 3 Q108 MMBT3906 1 2 3 C180 100nF Q106 MMBT3904 1 2 3 C181 22uF 16V R192 1K R191 2K7 C172 100nF R186 100 C167 100nF C164 47uF 16V R180 10K Q109 MMBT3904 1 2 3 C155 47uF 16V C185 NC 22uF 16V R190 10K R196 4 7K 0805 L111 200R 2A C170 100nF L112 200R 2A L113 200R 2A Q105 2SA1020 1 2 3 D116 IN4148 D117 IN4148 C171 22uF 16V Q104 AP...

Page 49: ...D109 NC 5V6 R118 2K2 D102 NC R101 NC D106 IN4148 D103 IN4148 D101 IN4148 D108 IN4148 D104 IN4148 R105 0R 0603 R197 0R 0603 C113 47PF C0603 D105 5V6 L101 0R 0603 C111 47PF C0603 L102 0R 0603 L103 0R 0603 R110 100 R102 0R 0603 R113 75 R114 100 R106 100 R107 0R 0603 C102 47nF C105 10pF R112 100 R108 100 C108 10pF C103 47nF C101 10pF C109 47nF R111 0R 0603 R103 100 R109 75 R104 75 C104 47nF C107 47nF ...

Page 50: ...9 8 7 6 5 4 3 2 1 L106 200R C135 100nF C134 100nF C136 100nF C137 100nF C141 100nF L107 200R C143 100nF C142 100nF RTD2023 2013 I101 108 128 54 50 111 56 42 43 124 9 10 11 12 13 14 15 123 118 40 29 30 31 33 35 37 27 38 41 39 28 32 6 7 1 2 4 3 5 8 114 115 116 117 119 122 47 126 125 109 120 69 71 121 49 72 57 58 26 97 83 95 96 84 98 113 110 112 127 25 24 21 22 23 20 19 18 17 16 78 79 80 81 82 85 86 ...

Page 51: ...00 C130 NC 100p C116 100nF R136 NC X101 12MHz R142 9K09 1 C119 22pF R135 100 R133 1K R128 4K7 C126 NC 100p R130 1K R134 100 RN2 10K X4 1 8 2 7 3 6 4 5 P104 CON8 1 2 3 4 5 6 7 8 RN4 10K X4 1 8 2 7 3 6 4 5 RN1 10K X4 1 8 2 7 3 6 4 5 R127 1M R137 NC R145 100 I104 MTV312M64 12 11 7 19 17 18 20 21 22 23 24 25 3 2 1 42 41 40 33 32 31 30 9 26 27 28 29 8 10 14 13 4 38 39 5 6 16 15 34 35 36 37 43 44 X1 X2 ...

Page 52: ...FG R802 10 3A I802 TLP621 4 3 1 2 D804 20D8 D801 20D8 R823 20 0K D803 20D8 R807 10R 1206 C815 1000pF 1KV D802 20D8 R819 12K 1206 R821 100R C820 470uF 16V R824 1K2 1 4W C821 0 01UF 50V R811 1K C803 3300pF Y1 C805 68UF 400V T801 1 6 5 3 12 11 10 11 7 8 2 L805 UU10 5 R822 2 74K TL431D D806 UF4007 C819 1000UF 16V C806 2700pF 250V PPN C816 1000UF 16V R817 22 1206 R813 3R9 1206 C817 1000UF 16V R815 3R9 ...

Page 53: ...10R R904 10R C906 330P C907 27P T901 16 16 2000 8 2 5 4 9 7 C901 470uF 16V R916 10K R915 100R R912 2K2 R910 10R R911 10R R909 1M C910 0 01uF AP9960M I902 1 2 3 4 5 6 7 8 R919 NC C904 3300P 1206 P902 88225 0211 1 2 R902 4R7 1 4W C903 3300P 1206 R901 4R7 1 4W D901 BAV99 3 1 2 C908 4 7uF 16V D906 5 6V DIP R917 3 0M 1 2W 3KV C914 20P 3KV 5 R918 4k99 1 P901 88225 0211 1 2 C913 2 2N R908 100K C911 5P 3K...

Page 54: ...11 PCB Layout Diagrams 11 1 MAIN PCB TOP VIEW 51 ViewSonic Corporation Confidential Do Not Copy VA521 VE510b s 2 ...

Page 55: ...11 2 MAIN PCB BOTTOM VIEW 52 ViewSonic Corporation Confidential Do Not Copy VA521 VE510b s 2 ...

Page 56: ...11 3 CON PCB TOP VIEW 11 4 CON PCB BOTTOM VIEW 53 ViewSonic Corporation Confidential Do Not Copy VA521 VE510b s 2 ...

Page 57: ...11 5 POWER PCB TOP VIEW 54 ViewSonic Corporation Confidential Do Not Copy VA521 VE510b s 2 ...

Page 58: ...11 6 POWER PCB BOTTOM VIEW 55 ViewSonic Corporation Confidential Do Not Copy VA521 VE510b s 2 ...

Page 59: ...521 VE510b s 2 Service Manual m e t I t n e l l e c x E d o o G r i a F d a B 1 2 3 t i n U r i a F d a B 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 d o o G t n e l l e c x E Precautions And Safety Notices 1 8 Exploded Diagram and Spare Parts List 7 Recommended Spare Parts List Adjusting Procedure 2...

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