ViewSonic VX700-3 User Manual Download

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Service Manual

ViewSonic

VX700-3

Model No.

VLCDS26104-3W

” Color TFT LCD Display

(VX700-3_SM_648 -Rev.1a-Feb 2003)

ViewSonic

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

Summary of Contents for VX700-3

Page 1: ...Service Manual ViewSonic VX700 3 Model No VLCDS26104 3W 17 Color TFT LCD Display VX700 3_SM_648 Rev 1a Feb 2003 ViewSonic 381 Brea Canyon Road Walnut California 91789 USA 800 888 8583...

Page 2: ...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...

Page 3: ...ront Panel Function Control Description 26 1 User control functions 26 2 OSD operation flow 27 3 Circuit Description 38 1 Interface Board 38 2 Audio Board 42 4 Troubleshooting Flow Chart 45 1 Figure o...

Page 4: ...jjj 6 Mechanical Assembly 59 7 Schematic Daigrams 65 8 PCB LAYOUT 74 9 Recommended Spare Parts List 76 10 Complete Parts List 78 ViewSonic Corporation Confidential Do Not Copy VX700 3...

Page 5: ...es diagonal 337 92 mm X 270 34 mm typical 0 264 mm X 0 264 mm 1280 x 1024 dot SXGA 250 cd m typ 200 min 500 1 typ 350 min 16 777 216 Up 85 Down 85 typical Left 85 Right 85 typical CR 10 1 Anti Glare I...

Page 6: ...y area is dependent upon signal timings Power Supply Rating AC adapter input AC90V 264V 50 60 Hz AC Power Consumption 45W less than 3W On mode Off mode w o audio cable connected Current Rating AC inpu...

Page 7: ...GS PCT GOST R with 20 Hygienic certificates PCBC B Mark SEMKO DEMKO FIMKO NEMKO BSMI VCCI CCIB EMC CCEE PSB Singapore Safety TCO 99 NOM and Argentina IRAM thru TUV Osd Language English French German...

Page 8: ...play method TFT normally black Drive method Active matrix TFT MVA Dot pitch 0 088 H x 0 264 V mm Pixel pitch 0 264 H x 0 264 V mm Dot number 1280 x 1024 x 3 dots Backlight Edge lighting type with 4 CC...

Page 9: ...OUTPUT SIGNAL AT SPEAKER TERMINAL 3W 5 DISTORTION 2 3 3 4 Frequency Response 400 Hz 20 KHz 2 3 3 5 Connector PC99 requirement Audio in Lime Green pantone 577C 2 3 3 6 Cable length 1 8 m 2 3 3 7 Audio...

Page 10: ...tor 24 pin DVI D connector pin assignment Pin No Signal Name Description 1 RX2 TMDS negative differential input channel 2 2 RX2 TMDS positive differential input channel 2 3 GND Logic Ground 4 Reserved...

Page 11: ...channel 0 19 GND Logic Ground 20 Reserved 20 Reserved No connection 21 Reserved 21 Reserved No connection 22 GND Logic Ground 23 RXC TMDS positive differential input reference clock 24 RXC TMDS negat...

Page 12: ...9 1 0Hz 800X600 72 VESA STANDARD MOD 11 46 875 1 0KHz 75 0 1 0Hz 800X600 75 VESA STANDARD MOD 12 53 67 1 0KHz 85 0 1 0Hz 800X600 85 VESA STANDARD MOD 13 49 72 1 0KHz 74 5 1 0Hz 832X624 75 MAC MOD 14 4...

Page 13: ...er 350 500 White Brightness L VMAX FULL White 200 250 cd m2 Uniformity of Brightness Bmin Bmax 70 80 Response At 25 degree Tpd All White All Black All Black All White 10 15 ms ms Right R Center CR 10...

Page 14: ...t ratio is defined as the following formula Contrast ratio Brightness Luminance with all pixels at white Brightness with allpixels at black Note 2 Viewing angle is measured as follows 4 Q ENQEM Q ENQE...

Page 15: ...TFT OFF Note 4 Judge points for brightness uniformity Brightness uniformity is judged at nine 9 points on display area 9 3 5 7 1 128 512 896 98 384 670 6 2 4 8 BUNI Bmin Bmax Bmax Maximum Brightness B...

Page 16: ...Minimum Luminance of white center 250 nits Typical 200 nits Minimum White Uniformity 75 5 points measurement Chromaticity values red green blue center x 0 030 y 0 030 Color temperature x 0 310 0 030...

Page 17: ...ility When the input display mode is not 1280x1024 the image area is changed as follows Flex Scan Input display Expanded Rate Expanded Mode Mode Resolution Horizontal Vertical Resolution Expansion 1 6...

Page 18: ...pendix III 3 4 2 Bar Code Number Label Carton Box Material Art Paper Color White Base Black Letter Size 76 W X 76 H mm Location Carton Box Side Wall Contents Appendix III 3 4 3 Serial Number Label Rea...

Page 19: ...hrough 40 C Humidity 8 To 80 39 degree welt bulb Altitude 0 3 000 Meter 5 2 Non operating Conditions Temperature 20 through 60 C Humidity 5 To 95 39 degree welt bulb Altitude 0 12 000 meter 6 Factory...

Page 20: ...Appendix I Preset Signal Timings H total H pulse H front H back Horizontal V total V pulse V front V back V active Vertical H Video H active V Video ViewSonic Corporation Confidential Do Not Copy VX70...

Page 21: ...num V total Tvd 449 449 525 525 500 520 509 V front porch Tvf 37 12 10 3 1 9 1 H sync Polarity Positive Negative Negative Negativ e Negative Negativ e Negativ e V sync Polarity Negative Positive Negat...

Page 22: ...ines 600 600 600 600 600 624 768 15 16 17 18 19 20 21 Signal name Symb ol XGA XGA XGA XGA SXGA 720P SXGA H frequency kHz 56 476 58 099 60 023 68 677 63 981 79 976 45 000 V frequency Hz 70 069 72 082 7...

Page 23: ...72 807 85 005 Pixel rate MHz 25 175 28 322 25 175 25 175 31 5 31 501 36 000 H sync Ths 96 108 96 96 64 40 56 H back porch Thb 48 54 48 48 120 128 80 Count num H total Thd 800 900 800 800 840 832 832...

Page 24: ...9 Count num V total Tvd 625 628 666 625 631 806 806 V front porch Tvf 1 1 37 1 1 3 3 H sync Polarity Negative Positive Positive Positive Positive Negative Negative V sync Polarity Negative Positive Po...

Page 25: ...d 806 800 808 1066 750 V front porch Tvf 3 1 1 1 5 H sync Polarity Negative Positive Positive Positive Negative V sync Polarity Negative Positive Positive Positive Negative H resolution dots 1024 1024...

Page 26: ...0 20 20 20 20 20 00 00 110 00 FC 00 56 58 37 30 30 2D 33 120 0A 20 20 20 20 20 00 73 Digital 128 BYTES OF EDID CODE 0 1 2 3 4 5 6 7 8 9 ________________________________________ 0 00 FF FF FF FF FF FF...

Page 27: ...bel Serial No Label UPC MODEL NUMBER VLCDS26104 3W SERIAL NUMBER A23YYWWnnnnn 7 66907 80253 5 ViewSonic VX700 3 M Made In China ViewSonic VX700 Model Number VLCDS26104 3W Serial Number A23YYWWnnnnn Vi...

Page 28: ...no OSD will toggle the digital input port and analog input port to display 3 Press up and down button simultaneously will reset the contrast and brightness to default 4 Press 1 button will enter OSD...

Page 29: ...xit the OSD to save the settings Auto Image Adjust automatically sizes centers and fine tunes the video signal to eliminate waviness and distortion Press the 2 button to confirm to do auto adjust NOTE...

Page 30: ...djust Press button 2 to toggle between brightness and contrast Brightness adjusts backlight brightness level of screen image increase brightness decease brightness Input Select press or button to sele...

Page 31: ...f the sound to the left speaker directs more of the sound to the right speaker Bass Treble adjusts the high treble and low bass frequency audio output Press 2 button to select bass adjustment Bass pre...

Page 32: ...41 Treble press or to adjust treble ViewSonic Corporation Confidential Do Not Copy VX700 3...

Page 33: ...in most office settings with fluorescent lighting 6500K Adds red to screen image for warmer white and richer red 5400K Adds green to screen image for a darker color 5000K Adds blue and green to scree...

Page 34: ...tion or V Position H Position moves screen image left or right move screen image to left moves screen image to right Press the 2 button to toggle between H and V Position V Position moves screen image...

Page 35: ...th of screen image decreases Width of screen image increases width of image Fine Tune Sharpness adjusts the clarity of a non SXGA 1280 x 1024 RGB signal Press Or to adjust ViewSonic Corporation Confid...

Page 36: ...able languages Resolution Notice press the or button to select the Enable or Disable the Resolution Notice Language Setup Menu Resolution Notice OSD Position OSD Timeout OSD Background 1 Exit 2 Select...

Page 37: ...Position moves OSD left moves the OSD right OSD V Position moves OSD down moves the OSD up OSD Timeout sets the length of time the OnScreen Display screen is displayed before exiting Resolution Notic...

Page 38: ...47 OSD Background ViewSonic Corporation Confidential Do Not Copy VX700 3...

Page 39: ...ber Manual Image Adjust H Size H Position V Position Fine Tune Sharpness Setup Menu Language Resolution Notice OSD Position OSD Timeout OSD Background Memory Recall These functions are not available i...

Page 40: ...able output voltages of 5V respectively 1 2 Micro Controller IC400 scaler built in a micro controller and extra a flash ROM IC402 39SF010 It plays a major role in the digital control of the LCD monito...

Page 41: ...high quality zoom and shrink scaling engine an on screen display OSD controller a microprocessor and many other functions in a single device This high level of integration enables simple flexible cost...

Page 42: ...reset separate from the regular gm5120 soft reset This reset disables the IFM reducing power consumption The IFM is capable of operating while gm5120 is running in power down mode Horizontal measureme...

Page 43: ...in a single integrated circuit These functions allow 28 bits of single ended low voltage TTL LVTTL data to be synchronously transmitted over five balanced pair conductors for receipt by a compatible r...

Page 44: ...nel In addition the monitor can respond to a request for EDID or complete VDIF to be transmitted using DDC2 level B commands Pin6 SCL is clock input for DDC 2B pin5 SDA for data input and pin7 VCLK is...

Page 45: ...1 I Light channel input 1 16 LIN I Audio processor left channel input 17 Lout O Gain output and input selector for left channel 18 Bin _L I Left bass controller input channel 19 Bout _L O Left bass co...

Page 46: ...ential input stages The gain of each amplifier is fixed at 20 dB Pins 1 and 9 are right and left channel inputs respectively Pins 4 and 6 are right and left channel outputs which connect to two 8 OHM...

Page 47: ...56 4 Troubleshooting Flow Chart 1 Figure of Waveform FIG1 12V FIG2 5V FIG 3 3 3V FIG 4 2 5V FIG 5 32 GRAY SIGNAL INPUT FIG 6 H SYNC ViewSonic Corporation Confidential Do Not Copy VX700 3...

Page 48: ...FIG 7 V SYNC FIG 8 14 3M CLOCK FIG 9 DISPLAY CLOCK FIG 10 DISPLAY H SYNC FIG 11 DISPLAY V SYNC FIG 12 DISPLAY ENABLE FIG 13 LVDS TX0 FIG 14 LVDS TX0 ViewSonic Corporation Confidential Do Not Copy VX70...

Page 49: ...58 FIG 15 LVDS CLOCK FIG 16 LVDS CLOCK FIG 17 AUDIO SINE SIGNAL IN FIG 18 AUDIO SINE SIGNAL OUT ViewSonic Corporation Confidential Do Not Copy VX700 3...

Page 50: ...Check that the voltage level of CN100 is approximately 12V Check CN301 pin1 is12V pin5 is 5V IC100 failure FB100 FB101 failure F100 or power board failure YES NO YES NO YES NO Inverter failure Check...

Page 51: ...Pin48 FIG 14 Pin39 FIG 15 Pin40 FIG 16 Failure point The cable is disconnected Failure point The cable is disconnected Check CN301 pin1 is12V pin5 is 5V Check IC502 Pin 2 4 is low voltage Failure poin...

Page 52: ...r Board failure 2 Disconnected between CN100 and power board Check that FB100 FB101 is 12V YES NO Check that IC100 pin 2 is about 5V YES NO Failure point F100 failure Failure point FB100 FB101 failure...

Page 53: ...re point 1 JA1 failure 2 IC400 pin123 failure Check ICA2 pin11 Pin15 signal is FIG 17 Check ICA1 pin2 is about 12V NO YES YES NO Check ICA5 ICA6 pin 4 is about 5V Failure point 1 QA6 or QA7 failure 2...

Page 54: ...IG 6 and FIG 7 NO YES NO NO Check that the cable is fully connected between the Interface board and Key board Failure point The cable is disconnected Failure point 1 IC400 pin 1 4 42 43 46 47 125 206...

Page 55: ...pre programmed chroma 2226 or equivalent products Color meter Minolta CA210 or equivalent products 1 4 Methods to enter exit factory mode 1 4 1 Press 2 and down key and power on to set the monitor to...

Page 56: ...ment menu Under factory mode select Color Temp Manual from factory OSD menu It will display the following color temperature adjust menu Use up and down to move cursor between items 9300 6500 5400 and...

Page 57: ...to move cursor to 9300 color temperature Then press 2 key to select 9300 color temperature adjustment 2 1 2 Use 2 to move cursor to r driver or g driver or b driver and then press up or down key to a...

Page 58: ...emperature adjustment 2 3 2 Use 2 to move cursor to r driver or g driver or b driver and then press up or down key to adjust it to meet following chromaticity spec 5400 k X 0 332 0 003 Y 0 348 0 003 y...

Page 59: ...re adjustment The above result R G B gain will automatically be saved when exiting the 3 Factory preset setting 3 1 In factory mode OSD main menu select factory default setting Press 2 to confirm the...

Page 60: ...6 6 Mechanical Assembly ViewSonic Corporation Confidential Do Not Copy VX700 3...

Page 61: ...71 ViewSonic Corporation Confidential Do Not Copy VX700 3...

Page 62: ...72 ViewSonic Corporation Confidential Do Not Copy VX700 3...

Page 63: ...73 ViewSonic Corporation Confidential Do Not Copy VX700 3...

Page 64: ...74 ViewSonic Corporation Confidential Do Not Copy VX700 3...

Page 65: ...88 3461222900 SHIELD CAN INVERTER 32 M SCW 0824 0413 3109011400 SCREW TM3 x 0 5 x 6 34 M MH 0822 0006 3460141700 BRACKET PANEL 35 M SCW 0824 0413 3109011400 SCREW TM3 x 0 5 x 6 2 PCS 36 M CV 0830 2387...

Page 66: ...7 Schematic Diagram 65 ViewSonic Corporation Confidential Do Not Copy VX700 3...

Page 67: ..._SCL SCL SDA IC404 DATA EEPROM BOARD CN302 AUDIO DVI D DIGITAL IC603 74F14 HD 15 CN601 HS VS 15PINS CN600 Hsync Vsync RGB VGA_SDA VGA_SCL ANALOG I P 5V L17KMW L18HMW 05AAW LCD MONITOR BLOCK DIAGRAM LV...

Page 68: ...67 ViewSonic Corporation Confidential Do Not Copy VX700 3...

Page 69: ...68 ViewSonic Corporation Confidential Do Not Copy VX700 3...

Page 70: ...69 ViewSonic Corporation Confidential Do Not Copy VX700 3...

Page 71: ...70 ViewSonic Corporation Confidential Do Not Copy VX700 3...

Page 72: ...71 ViewSonic Corporation Confidential Do Not Copy VX700 3...

Page 73: ...72 ViewSonic Corporation Confidential Do Not Copy VX700 3...

Page 74: ...8 PCB Layout 73 ViewSonic Corporation Confidential Do Not Copy VX700 3...

Page 75: ...ViewSonic Corporation Confidential Do Not Copy VX700 3 74...

Page 76: ...ViewSonic Corporation Confidential Do Not Copy VX700 3 75...

Page 77: ...413 3109011400 SCREW T M3 0 5 6 BIND C S18C Z IVT COVER PANEL BKT 27 M SCW 0814 0694 3109015000 SCREW T 3 1 27 8 PAN C S20C K B SPK COVER 28 M SCW 0824 0620 3109020500 SCREW T 4 1 6 10 PAN C S18C BACK...

Page 78: ...X700 3 72 M WR 0828 0680 3610171100 SOCKET AC ASSY VX700 73 M WR 0828 0681 3670190300 WIRE WITH HOUSING 1007 28 L35 KEY BD TO I F 74 M WR 0828 0682 3670190400 WIRE WITH HOUSING 1007 28 L12 AUDIO TO I...

Page 79: ...3 M SCW 0824 0413 3109011400 SCREW T M3 0 5 6 BIND C S18C Z 24 M SCW 0824 0413 3109011400 SCREW T M3 0 5 6 BIND C S18C Z 25 M SCW 0824 0413 3109011400 SCREW T M3 0 5 6 BIND C S18C Z 26 M SCW 0824 0413...

Page 80: ...B 41 D 180 75 4020371609 PLASTIC ABS 94HB 41 SD 0150 76 4020371614 PLASTIC ABS 94HB 41 PA 707 77 M CV 0830 2385 3368205500 SPEAKER COVER ASSY L17KMW05AAW 78 PL FK 0709 0114 3360727100 FUNCTION KEY ABS...

Page 81: ...00 1600 0 15 126 M MS 0808 7748 3520087700 PE SHIELDING BAG 280 200 127 3520130500 DRYER 15G 80 60 128 PL SP 0723 0002 3520142700 PLASTIC STRIP W 12 T 5 BLACK 129 M MS 0808 7741 3532059100 MANUAL PACK...

Page 82: ...J 0603 176 E R 0405 6685 0343103300 RES CH 1 10W 10K J 0603 177 E R 0405 6685 0343103300 RES CH 1 10W 10K J 0603 178 E R 0405 6685 0343103300 RES CH 1 10W 10K J 0603 179 E R 0405 6685 0343103300 RES...

Page 83: ...RES CH 1 10W 470 J 0603 227 E R 0405 7033 0343471300 RES CH 1 10W 470 J 0603 228 E R 0405 7033 0343471300 RES CH 1 10W 470 J 0603 229 E R 0405 7033 0343471300 RES CH 1 10W 470 J 0603 230 E R 0405 703...

Page 84: ...10U M 4 5 4 280 149122211333 AP AL CP 16V 220U M 6 3 7 7 281 149122211333 AP AL CP 16V 220U M 6 3 7 7 282 149124711408 CAP AL CP 16V 470U M 8 10 5 283 149124711408 CAP AL CP 16V 470U M 8 10 5 284 E C...

Page 85: ...1547667100 CAP MC CP 16V 1U Z Y5V 0805 327 1547667100 CAP MC CP 16V 1U Z Y5V 0805 328 1547667100 CAP MC CP 16V 1U Z Y5V 0805 329 1547667100 CAP MC CP 16V 1U Z Y5V 0805 330 1552458000 CAP MC CP 25V 1U...

Page 86: ...5V 1U K X7R 0603 383 202351080105 DIO SBD 3A 40V DO 201AD 384 E D 0403 2053 203812540836 DIO ZEN 0 5W 5 45 5 73V LLDS M 385 E D 0403 2053 203812540836 DIO ZEN 0 5W 5 45 5 73V LLDS M 386 E D 0403 2053...

Page 87: ...0205 TR 40V 0 2A SOT 23 100 300 431 211522000217 TR 40V 0 2A SOT 23 100 300 432 211522000217 TR 40V 0 2A SOT 23 100 300 433 243600600031 FET 20V 3 4A 0 075ohm SO 8P 434 E Q 0402 1551 243601100017 FET...

Page 88: ...482 2921113212 CORE BEAD 100MHZ 120 OHM 4A 12 483 2921113212 CORE BEAD 100MHZ 120 OHM 4A 12 484 2921113212 CORE BEAD 100MHZ 120 OHM 4A 12 485 2921113212 CORE BEAD 100MHZ 120 OHM 4A 12 486 2921113212...

Page 89: ...ANGLE 516 3122009500 HOLDER FOR LED NY66 UL94V 2 6 517 M WR 0828 0224 3411000300 JUMP WIRE BRASS 0 6 7 5 4 0 518 M WR 0828 0402 4010670000 WIRE CU 0 6 TNC 519 B SB 0221 0450 5600200113 MICROPHONE BD A...

Page 90: ...think about the content after reading VX700 3 series Service Manual e m a N e l t i T y n a p m o C d d A l e T x a F l i a m E m e t I t n e l l e c x E d o o G r i a F d a B t n e t n o C l a u n a...

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