ViewSonic VX500PLUS-1 Service Manual
  1. Manuals
  2. Brands
  3. ViewSonic Manuals
  4. Monitor
  5. VX500PLUS-1
  6. Service manual

ViewSonic VX500PLUS-1 Service Manual

15” color tft lcd display
Hide thumbs
Table of Contents

Advertisement

Quick Links

Service Manual

ViewSonic VX500+-1
Model No. VLCDS 3897-1W
1 " Color TFT LCD Display
( X500+-1_SM_576-Rev.1a-May 2002)
ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583

Advertisement

Table of Contents
loading

Related Manuals for ViewSonic VX500PLUS-1

Summary of Contents for ViewSonic VX500PLUS-1

  • Page 1: Service Manual

    Service Manual ViewSonic VX500+-1 Model No. VLCDS 3897-1W 1 ” Color TFT LCD Display ( X500+-1_SM_576-Rev.1a-May 2002) ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583...

  • Page 2: Revision History

    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.

  • Page 3: Table Of Contents

    TIMING CHART ......................15 FRONT PANEL CONTROL FUNCTION DESCRIPTION........21 DESCRIPTION ..................31 WAVEFORMS......................37 TROUBLE SHOOTING FLOW CHART ..............40 ADJUSTING PROCEDURE..................46 SPARE PARTS LIST....................49 EXPLODED PARTS VIEW..................51 BLOCK DIAGRAM....................57 SCHEMATIC DIAGRAMS..................58 PCB LAYOUT DIAGRAMS ..................64 ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...

  • Page 4: Precautions And Notices

    The openings should never be blocked by placing the product on a bed, sofa, rug, or other similar surface. This product should never be placed near or over a radiator or heat register. This product should not be placed in a built-in installation unless proper ventilation is provided. ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...

  • Page 5: Specifications

    Preset Timings XGA/60Hz, 70Hz, 75Hz SVGA/56Hz, 60Hz, 72Hz, 75Hz VGA/60Hz, 72Hz, 75Hz Dos-text/70Hz Synchronization Horizontal 30 kHz to 62 kHz (automatically) Vertical 50 Hz to 75 Hz (automatically) Non-interlaced Max Pixel Rate 85Mhz ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 6 1.8m DVI-D cable 1.8m Audio cable Micphone cable Viewsonic CD-Wizard Regulatory UL, CSA or cUL, CB Report, CE, FCC-B, DOC-B, TÜV/Ergo (which covers Standards ISO13406-2 and MPRIII), TUV/GS, PCT (GOST-R) with 20 Hygienic certificates, PCBC (B Mark), SEMKO, DEMKO, FIMKO, NEMKO, BSMI, VCCI, CCIB/EMC, CCC, PSB (Singapore Safety), TCO’99, NOM and...
  • Page 7 Brightness Contrast ratio 300:1 (min) Display color 16.7 million Minimum viewing angle 110° Horizontal (min) 100° Vertical (min) (Contrast ratio>10 at Ta=25°C, 77°F) Response time 25 msec (Typical at 25 degree C) ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 8 Speakers stay on when the rest of the monitor is in power saving. 3.3.3.8 Speakers Impedance 4 Ohm Output Wattage 2W (max.) x 2 3.3.4 Input Signal Connectors 3.3.4.1 Analog RGB Video Input : 15 pin mini D-sub PIN NO. Separate Sync ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 9 RX2- TMDS negative differential input, channel 2 RX2+ TMDS positive differential input, channel 2 Logic Ground Reserved 4 Reserved. No connection Reserved 5 Reserved. No connection DDC-CLK DDC2B Clock DDC-DAT DDC2B Data ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 10 The factory test input video signal is defined as the following table: Preset H.sync V.sync SYNC POL. Video Mode Description Frequency Frequency H-SYNC V-SYNC MOD [1] 31.468 1.0KHz 70.0 1.0Hz 640X350(70) Text mode 31.468 1.0KHz 70.0 1.0Hz MOD [2] 720X400(70) Dos text ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 11 +- 5% tolerance. Item Code Conditions Min. Typ. Max. Unit Contrast (500) White Black at Image Center White Whole White (300) cd / m 2 Brightness VMAX ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 12 Warm Up time: minimum 30 minutes Measuring instrument: TOPCOM BM-7 Luminance Meter Measuring distance: 500 mm Measuring angle: 2° 500mm BM-7 2 Degree Notes: (Note 1) Contrast ratio is defined as the following formula. ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 13 Wh it e(TF T OF F ) Wh it e Opt ica l Respon se (Note 4) Judge points for brightness uniformity Brightness uniformity is judged at five (9) points on display area: ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...

  • Page 14: Optical Performance

    (500): 1 Typical 300: 1 Minimum Luminance of white (center) 300 nits Typical 230 nits Minimum White Uniformity 70% (9 points measurement) Chromaticity values (red, green, blue) center ‘x = +/- 0.050 ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 15 1024x 768 Expansion 3 640x480 2.13 1024x 768 Expansion 4 720x400 1.78 2.56 1024x 768 Expansion 5 800x600 1.71 1024x 768 Expansion 6 832x624 1.54 1024x 768 Standard 1024x768 1.25 1.33 1024x 768 ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 16 7.1 OSD Brightness 100%(based on 0-100%) Contrast 80%(based on 0-100%) AutoTune Executed Color Temperature 6500k Volume Balance Bass/Treble OSD Timeout 15 Sec Language English OSD position Center Scaling Fill all 7.2 Power Switch ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 17 Preset Signal Timings H-Video H active Horizontal H front H back H pulse H total V-Video V active Vertical V front V back V pulse V total ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...

  • Page 18: Timing Chart

    H-sync H-back porch H-total 1024 1056 1040 H- front porch V-sync V-back porch V-total V-front porch H-sync. Polarity Negative Negative Negative Positive Positive V-sync Polarity Negative Negative Negative Positive Positive H-resolution (dots) ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 19 H-back porch H-total 1344 1312 1376 H- front porch V-sync V-back porch V-total V-front porch H-sync. Polarity Negative Positive Positive V-sync Polarity Negative Positive Positive H-resolution (dots) 1024 1024 1024 V-resolution (lines) ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 20 25.175 28.327 25.175 25.175 31.501 H-sync H-back porch H-total H- front porch V-sync V-back porch V-total V-front porch H-sync. Polarity Positive Negative Negative Negative Negative V-sync Polarity Negative Positive Negative Negative Negative ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 21 H-sync H-back porch H-total 1056 1048 1344 1328 1344 H- front porch V-sync V-back porch V-total V-front porch H-sync. Polarity Positive Positive Negative Negative Negative V-sync Polarity Positive Positive Negative Negative Negative ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 22 H-back porch H-total 1312 1376 H- front porch V-sync V-back porch V-total V-front porch H-sync. Polarity Positive Positive V-sync Polarity Positive Positive H-resolution (dots) 1024 1024 V-resolution (lines) Appendix I EDID Code Analog ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...

  • Page 23: Viewsonic Corporation

    Digital ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...

  • Page 24: Front Panel Control Function Description

    Submenu. For details on the controls, please follow the steps listed below. Note: Any OSD setting will only save after user totally exit OSD menu. 1. Press the [1] button to display the Main Menu shown below. ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 25 [2] to toggle between brightness and contrast. C o n t r a s t 1 : E x i t 2 : B r i g h t n e s s ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 26 1 : Exit 2 : Select Volume [ ] increases the volume, [ ] decreases the volume. V o lu m e : E x i t : S e l e c t ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 27 : E x i t : S e l e c t Mute M u t e O f f : E x i t : S e l e c t ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 28 User color—Individual adjustments for fed (R), green (G), blue (B). 1 To adjust selected color, press ] or [ ]. 2 Press button [2] to set adjustment and select next color to adjust. User Color Green Blue 1: Exit 2: Select ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...

  • Page 29: Manual Image Adjust

    ] move screen image down, [ ] moves screen image up. V - P o s it io n 1 : E x i t 2 : S e l e c t ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...

  • Page 30: Setup Menu

    : E x i t : S e l e c t Setup Menu Setup Menu Language Resolution Notice OSD Position OSD Timeout OSD Background Touch Tone 1 : Exit 2 : Select ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 31 OSD V-Position ] moves OSD down, [ ] moves the OSD up. O S D V -P o s itio n 1 : E x it 2 : S e le c t ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 32 * These functions are not available in Digital Mode. Memory Recall is to recall the following functions to factory setting: Contrast, Brightness, H Size, H/V Position, Color Temperature @ 6500K, OSD Position, Sharpness, & OSD Timeout. ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 33 OSD Auto Save The OSD shall save new settings when it is turned off by the user or when it times out. There shall not be a separate save. ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...

  • Page 34: Circuit Description

    LOW signal from key button.) Pin13, 14 communicate with ICM9 (EEPROM) by I Pin17, 18,20,21,22,23 communicate with ICM11 (scalar) by 6-wire protocol Pin19 detect audio in Pin28, 29 do ISP (in-system program) ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 35 (2) TMDS Differential Input Clock (RC+ and RC-) (3) Video Clock (VCLK) input pin (4) Host Interface Transfer Clock (HCLK for 6-Wire nibble; SCL for 2-wire serial) ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 36 SDA output pin is used as serial data line the SCL pin will hold high. The DDC2B node (BI-directional mode) BUS consists of two wires. SCL is for the data transmission clock and SDA is for the data line. ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...

  • Page 37: Description

    Gain output& input selector for left channel Bin _L Left bass controller input channel Bout _L Left bass controller output channel Bin _R Right bass controller input channel Bout _R Right bass controller output channel ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 38 It is designed specifically for human interfaces, like control panels, application lighting controls or anywhere a mechanical switch or button may be found. The device is designed to detect touch on up to 8 point independently. ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 39 As a value of this resistor, internal circuit decide time delay between input and TTL output. P_on_rst Prevent abnormal operation during VDD on transient time. EN_x (No) Select input channel and control of sensitivity. ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...

  • Page 40: Waveforms

    WAVE FORMS A1. Figure of Waveform FIG 1. FIG 2. FIG 3. 3.3V FIG 4. 2.5V FIG 5. 32 GRAY SIGNAL INPUT FIG 6. H-SYNC ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 41 FIG 7. V-SYNC FIG 8. 24M CLOCK FIG 9. DISPLAY CLOCK FIG 10. DISPLAY ENABLE FIG 11. MCU CLOCK FIG 12. AUDIO SINE SIGNAL IN ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 42 FIG 13. AUDIO SINE SIGNAL OUT ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...

  • Page 43: Trouble Shooting Flow Chart

    Check that CM16 positive is at 5V. (FIG 2.) Check that the voltage level of JM1 is approximately 12V check Check JM2 pin1 ICM1 failure LM1 failure Adapter failure is12V, pin5 is 5V Inverter failure ICM10 failure ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 44 5V Failure point Check ICM11 Pin4is low voltage 1.ICM15, ICM16 failure 2.ICM11 failure Inverter failure ICM10 failure Check ICM11 ICM10 failure Pin5, 6, 7, and 8 is About 3.3V ICM17 failure ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...

  • Page 45: No Power On

    Check that ICM2 Failure point Pin5, 6, 7, and 8 is LM1 failure Check that LM5 Failure point pin 2 is about 5V ICM2 failure Failure point 1.LM5 failure 2.DM1 failure 3.ICM1 failure ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 46 Check ICA3 pin4, 6 is FIG20. 1.ICA1 failure 2.ICM10 failure Check ICA5, ICA6 pin4 is Failure point about 5V 1. QA6 or QA7 failure 2. ICA3 failure ICA5 or ICA6 failure ICM10 failure ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 47 Check the signal level of RM9, RM10, RM11 is FIG 5. Check the HS and VS is Failure point FIG 6. and FIG 7. 1.The video connector is disconnected 2.Signal cable disconnected ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 48 6. Keypad cannot work Check that the signal cable is fully connected between the Inverter and touch board Failure point Failure point 1. ICT1 failure The cable is disconnected 2. LED failure ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...

  • Page 49: Adjusting Procedure

    2: Select Otherwise, follow the procedure. Described in session 1.4.1 to enter the factory mode again. 1.4.3 Under factory mode, press “ 1” Key. The monitor will exit factory mode and under ordinary ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...

  • Page 50: Color Adjust

    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 adjust it to meet following chromaticity spec. 9300 K x = 0.283 0.030 , y = 0.298 0.030 Y>= 160CD/M ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 51 When exit factor mode OSD menu, the above result R.G.B gain will automatically be saved. 3. Factory preset setting 3.1 In factory mode OSD main menu, select factory default setting. Press “2” to confirm the selection. ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...

  • Page 52: Spare Parts List

    SPONGE PU FOAM 55*20 T3 GRAY SPEAKER ASSY R 3240958300 SPONGE FOAM 10*8 T2 BLACK SPEAKER ASSY L 3240959800 RUBBER HOLD PLUG OD5.2 H3 BLK R/C ABS 3240960400 RUBBER FOOT 50*7.8 T1.5 3240960500 RUBBER FOOT 70*10 T1.5 ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 53 4900503380 DC-AC INVERTER 12V/1800V 4L 15 5012016100 WARRANTY CARD COLOR KEY VSC 10 5051500876 LCD PANEL 15" TFT PANEL 5600200113 MICROPHONE BD ASSY 5600200114 MAIN BD ASS'Y 5600200115 TOUCH BUTTON PANEL ASSY ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...

  • Page 54: Exploded Parts View

    10. EXPLODED PARTS VIEW ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 55 ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 56 ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 57 ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 58 SPONGE FOAM 10*8 T2 BLACK 3240959801 RUBBER HOLD PLUG OD5.2 H3 BLK 3240960300 PAD SILICON THERMAL 7*10 T2 3240960400 RUBBER FOOT 50*7.8 T1.5 3240960500 RUBBER FOOT 70*10 T1.5 3343705301 HSK AL T=1.5 21*9 ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 59 4900503380 DC-AC INVERTER 12V/1800V 4L 15 5012016100 WARRANTY CARD COLOR KEY VSC 10 5051500876 LCD PANEL 15" TFT PANEL 5600200113 MICROPHONE BD ASSY 5600200114 MAIN BD ASS'Y 5600200115 TOUCH BUTTON PANEL ASSY ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...

  • Page 60: Block Diagram

    BLOCK DIAGRAM ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...

  • Page 61: Schematic Diagrams

    $% $% $% $% $% $% $% $ $ " " " " " " " (+* $ (+( *( A_GND    *         !%      A_GND  A_GND ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 62    2  2   ) 2 )2   2 + +   +),  2  3 3  3     )     %  A_GND  2  3 )      A_GND A_GND )  A_GND A_GND ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 63 &  2        A_GND & & A_GND 8&   8 A_GND + +  /" + 3 2   6 6 A_GND A_GND A_GND   %    %  ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 64 ) )     8 %  %  A_GND   ) 2 )2     2  ) 2 )2        8 2&9  ) 2 )2  (47U/25V) (47U/25V)  )      ) 2 )2  %  %  A_GND ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 65 *' ( ' ( ,  2    3    2   3    2   3         &  A_GND A_GND A_GND A_GND ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 66 A_GND &*  3 A_GND ) A_GND 3   ) 2 )2     ) 2 )2   A_GND )  % A_GND A_GND ,   A_GND   A_GND "+!+! &* A_GND A_GND &* ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...

  • Page 67: Pcb Layout Diagrams

    PCB LAYOUT DIAGRAM ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...
  • Page 68 ViewSonic Corporation VX500+-1 Confidential – Do Not Copy...

This manual is also suitable for:

Vlcds23897-1w

Table of Contents