ViewSonic VLCDS26105-2W Wartungshandbuch

Service ManualViewSonic VX900-2Model No.VLCDS26105-2W19” Color TFT LCD Display (VX900-2_SM_637 - Rev.1a-Feb 2003)ViewSonic 381 Brea Canyon Road, Wa

!2.3.2 TMDS digital Signals 2.3.2.1 Video type DVI 1.0 compliant 2.3.3 Audio spec. 2.3.3.1 Line input connection 3.5 mm stereo jack x

!9 +5V 10 GROUND 11 N.C 12 SDA 13 H.SYNC 14 V.SYNC 15 SCL 15105 16112.3.4.2 Digital TMDS DVI-D Connector 24 pin DVI-D connector pin assignment

!20 Reserved 20 Reserved. No connection 21 Reserved 21 Reserved. No connection 22 GND Logic Ground 23 RXC+ TMDS positive differential input, re

!MOD [20] 63.981 ̈́ 1.0KHz 60.02 ̈́ 1.0Hz + + 1280X1024(60) VESA STANDARD MOD [21] 79.976 ̈́ 1.0KHz 75.0 ̈́ 1.0Hz + + 1280X1024(75) VESA STANDARD 2.4 Lumi

!Luminance control All White(digital signal or analog 6500k) Brightness at center of display surface >=200 (cont / bright backlight max) cd / m2T

!Ǿ*ǰ4ǰ.Ǿ.ǰ .ࠑ:QENQEM;’Ǿ .ࠑQENQEMǾ *ࠑ;:’ǰ 4ࠑ0QTOCNǾࠑǰࠑ (Note 3) Definition of response time is as follows: Response time is

!100㧑90㧑10㧑0㧑TFTROpticalResponseWhiteWhite(TFT OFF)Black(TFT ON) White(TFT OFF)(Note 4) Judge points for brightness uniformity Brightness uniformity i

!2.6.3. LCD Panel MechanicalActive Area (mm) 376.32 x 301.056 Pixel pitch (mm) 0.294 (0.098x3) Mass typical (g) 3000 Panel dimensions (WxDxH) mm

!2.7 Power Management Unit will enter power saving mode under the following conditions: Power Management condition and status State Signals Powe

3.Mechanical Characteristics 3.1 Dimensions Net: 442.0 (W) x 474.6 (H) x 180.6 (D) mm Gross: 565.0 (W) x 525.0 (H) x 260.0 (D) mm3.2 Weight Net: 7.5K

CopyrightCopyright¤ 2003 by ViewSonic Corporation. All rights reserved. No part of this publication may bereproduced, transmitted, transcribed, stor

!3.6 UPC Coding (Code 39 format) Worldwide Model UPC Code: 766907 80262 74. Packaging 4.1 Carton Box Dimensions: 565(W) x 525(H) x 260(

Appendix I Preset Signal Timings H totalH pulseH front H backHorizontalV totalV pulseV frontV backV activeVerticalH-VideoH activeV-Video!27ViewSoni

Analog timing mode table 1 2 3 4 5 6 7 Signal name symbol TEXT mode TEXT mode VGA MAC-II VESA-VGA VESA-VGAVESA-VGAH-frequency (kHz) 31.468 31.4

!H-sync. Polarity Negative Positive Positive Positive Positive Negative Negative V-sync Polarity Negative Positive Positive Positive Posit

!!Digital timing mode table 1 2 3 4 5 6 7 Signal name symbol TEXT mode TEXT mode VGA VGA VESA-VGAVESA-VGAVESA-VGAH-frequency (kHz) 31.468 31.469

!H-sync. Polarity Negative Positive Positive Positive Positive Negative Negative V-sync Polarity Negative Positive Positive Positive Positive Negati

Appendix II EDID Code Analog239!CZUFT!PG!FEJE!DPEF;!!!!!!!!!!1!!!2!!!3!!!4!!!5!!!6!!!7!!!8!!!9!!!:!!!!!!!```````````````````````````````````````!!!1!

!Appendix III Label Printing ID LABEL Bar Code label/Serial No Label UPCMODEL NUMBER: VLCDS26105-2WSERIAL NUMBER: A24YYWWnnnnn 7 66907 80

!2. Front Panel Function Control Description 1. User control functions Control buttons : 12-+1. Press power button to power on LCD monitor. Led on the

!2. OSD operation flow The following steps show how to access the Main Menu, Submenus, and controls within each Submenu. Details on the controls follo

PRECAUTIONS AND NOTICESPrior to using this manual, please ensure that you have carefully followed all the proceduresoutlined in the user manual for th

!Shortcut: Before displaying the OnView menu, press the [ϰ] or [ϧ] button to adjust. Press button [2] to toggle between brightness and contrast. Brigh

!Volume increase the volume, decreases the volume, Balance adjusts the proportion of sound coming from each speaker. [ϰ] directs more of the sound t

!MuteColor AdjustColor Adjust provides four preset color adjustment: 9300K, 6500K, 5400K, 5000K for improved brightness and color saturation. Press bu

!InformationManual Image AdjustH/V Position Press the [2] button to select H-Position or V-Position. H-Position moves screen image left or right. [ϰ

!H-Size adjusts the width of screen image. [ϰ] decreases Width of screen image, [ϧ] increases width of image. Fine-TuneSharpness adjusts the clarity o

!Language Select allows the user to choose from available languages. Resolution Notice press the [ϰ] or [ϧ] button to select the Enable or Disable the

OSD V-Position [ϰ] moves OSD down, [ϧ] moves the OSD up. OSD Time out sets the length of time the On Screen Display screen is displayed before exiting

!Memory RecallReturns the adjustments back to factory settings (only if the LCD Display is operating in a factory preset mode). Press the [2] button t

DDCPOWER12VI/FPWRADAPTEREEPROM12V5VDVDD2.5DVDD3.3LVDS3.3DVI_SCL24PINSDVI-DIC600VGA_SDAVGA_SCLDVI_SDA5VIC602HD-15DDCEEPROM5VDVI_SDADVI_SCLI/P X 8PINSVG

!1. Interface Board 1.1 Power Supply (DC/DC Converter) IC100 is a linear regulator that converts a 12V DC input voltage into regulated and stable outp

Content1. Engineering Specifications . ...11.1 Scope ...

1.3. Image Processor IC400 (gm5120) is an all-in-one image processor for displays with a dual (analog and digital) interface supporting resolutions up

!The gm5120 OSD controller supports both character-mapped and bitmapped modes. A user programmable palette of 256 true colors (255 colors, + 1 transpa

When transmitting, data bits D0 through D27 are each loaded into registers upon the edge of the input clock signal (CLKIN). The rising or falling edge

!1.5 DDC 1/2 B IC600 (24LC02) & IC602 (24LC21A) can continuously transmit its extended identification, “EDID” using DDC1 communication channel. In

!14 Lin 2 I Light channel input 2 15 Lin 1 I Light channel input 1 16 LIN I Audio processor left channel input 17 Lout O Gain output &

!4. Troubleshooting Flow Chart 1. Figure of Waveform FIG 1. 12V FIG 2. 5V FIG 3. 3.3V

! FIG 7. V-SYNC FIG 8. 14.3M CLOCK FIG 9. DISPLAY CLOCK+ FIG 10. DISPLAY H-SYNC FIG 11. DISPLAY V-SYNC

! FIG 13. LVDS TX0+ FIG 14. LVDS TX0- FIG 15. LVDS CLOCK+ FIG 16. LVDS CLOCK- FIG 17. AUDIO SINE SIGNAL IN FIG 18.

!2. No Display on Screen (Screen is black, LED is off) -checjkIs the screen black? Check that C202 positive is at 5V. ( FIG 2.) Check that the voltage

!3. No Display on Screen ( LED is green) NOYESNOIs the backlight lit? Check that the cable is fully connected to CN500 Check that the cable is fully c

9. PCB LAYOUT...66jw!ViewSonic Corporat

!4. No Power On Check that CN100 Pin1 is approximately 12V YES NO Check that F100 output is 12VFailure point 1. Power Board failure 2. Disconnected be

!5. No Sound (Test signal: 1r.m.s sine waveform ) YESYES NOCheck that ICA3 Pin 7 is approximately 12V Check that ICA1 Pin 3 is approximately 9V Check

!6. Show “No Signal” on screen ( Test pattern: 32 gray 1280X1024 60HZ ) 7. Keypad can not work Check the signal level of R610, R611, R612 is FIG 5. YE

!5. Adjust Procedure CONTENTSA. INSTRUMENT ALIGNMENT 1.PREPARATION OF MANUAL ALIGNMENT2. COLOR TEMPERATURE ALIGNMENT 3. FACTORY PRESET SETTING !59Vi

!1. PREPARATION OF MANUAL ALIGNMENT 1.1 THE ALIGNMENT PROCEDURE IS PERFORMED AFTER UNIT HAS BEEN COMPLETELY ASSEMBLED AND BEFORE SET INSPECTION.

! OTHERWISE, FOLLOW THE PROCEDURE DESCRIBED IN SESSION 1.4.1 TO ENTER THE FACTORY MODE AGAIN 1.4.3 UNDER FACTORY MODE, PRESS “POW

!2. COLOR TEMPERATURE ALIGNMENT BEFORE MANUALLY ADJUSTING COLOR TEMPERATURE , SET OSD CONTRAST 80%, BRIGHTNESS 100% ( FACTORY DEFAULT), ENTER INTO

!2.3 5400 ̓ K ALIGNMENT 2.3.1 USE “UP” OR “DOWN” KEY TO MOVE CURSOR TO 5400 COLOR TEMPERATURE. THEN PRESS “2” KEY TO SELECT 5400 COL

6. Mechanical Assembly64ViewSonic Corporation Confidential – Do Not Copy VX900-2

65ViewSonic Corporation Confidential – Do Not Copy VX900-2

!I. Engineering Specifications. 1. Scope The following specifications are applicable to model VX900-2 19 inch color LCD monitor.General Description (V

66!ViewSonic Corporation Confidential – Do Not Copy VX900-2

67!ViewSonic Corporation Confidential – Do Not Copy VX900-2

No. VSC PART DELTA PartNo DELTA DESCRIPTION1C-FP-0301-08133361073800 FRONT BEZEL2M-SCW-0824-04333100301200 SCREW M3*0.5*12 PAN C S+P S20C3M-LCD-0826-0

69!ViewSonic Corporation Confidential – Do Not Copy VX900-27. Explode Diagram

Sechmatic Daigrams6:!ViewSonic Corporation Confidential – Do Not Copy VX900-2

72!ViewSonic Corporation Confidential – Do Not Copy VX900-2

73ViewSonic Corporation Confidential – Do Not Copy VX900-2

74ViewSonic Corporation Confidential – Do Not Copy VX900-2

75!ViewSonic Corporation Confidential – Do Not Copy VX900-2

76!ViewSonic Corporation Confidential – Do Not Copy VX900-2

!Synchronization Horizontal Vertical Non-interlaced30 kHz to 83 kHz 50 Hz to 75 Hz Max Pixel Rated 135Mhz (automatically) (automatically) Resolution

PCB Layout77!ViewSonic Corporation Confidential – Do Not Copy VX900-2

78!ViewSonic Corporation Confidential – Do Not Copy VX900-2

79!ViewSonic Corporation Confidential – Do Not Copy VX900-2

Recommended Spare Parts ListVX900-2NO. VIEWSONIC P/N REFERENCE DESCRIPTION REMARKS1 A-AD-0114-0182 0993026502POWER 90-264VAC 12VDC 5ACOMPUTER USE2 A-P

44 PL-FK-0709-0114 3360727100 FUNCTION KEY ABS VSC02B S7LFA145 M-CV-0830-2381 3360916300 ARM FRONT ABS 41 VX700-246 M-CV-0830-2382 3360916400 ARM REAR

Complete Parts ListVX900-2ITEM VIEWSONIC P/N REFERENCE MFG PART DESCRIPTION QTY UNIT1 A-AD-0114-0182 0993026502 ADP-60AF A ADAPTER 90-264VAC 12VDC 5A

60 M-CV-0830-2381 3360916300 ARM FRONT ABS 41 VX700-2 1 PCE61 4020371607 D-180 41 PLASTIC ABS 94HB 41 D-180 65 GRM62 4020371609 SD-0150 41 PLASTIC ABS

121 3520130500 DRYER 15G 80*60 4 PCE122 PL-SP-0723-0002 3520142700 PLASTIC STRIP W=12 T.5 BLACK 1 MTR123 M-MS-0808-7743 3532059900 MANUAL PACKING ASSY

421 E-C-0404-4874 1511530000 C0603N101J050T CAP MC CP 50V 100P J C0G 0603 1 PCE422 E-C-0404-4875 1511545000 C1608C0G1H102JT CAP MC CP 50V 1KP J C0G 06

482 E-R-0405-6684 0343101300 2322 702 60101 RES CH 1/10W 100 J 0603 1 PCE483 E-R-0405-6684 0343101300 2322 702 60101 RES CH 1/10W 100 J 0603 1 PCE484

!RegulatoryStandardsUL, CSA or cUL, CB Report, CE, FCC-B, DOC-B, TUV/Ergo(which covers ISO13406-2 and MPRIII), TUV/GS, PCT (GOST-R) with 20 Hygienic c

543 E-R-0405-7033 0343471300 2322 702 60471 RES CH 1/10W 470 J 0603 1 PCE544 E-R-0405-7033 0343471300 2322 702 60471 RES CH 1/10W 470 J 0603 1 PCE545

604 149142211408 25RGV220M8*10.5 CAP AL CP 25V 220U M 8*10.5 1 PCE605 149142211433 UWT1E221MNR1GS CAP AL CP 25V 220U M 8*10 1 PCE606 149142211433 UWT1

665 1552458000 C0603X104K025T CAP MC CP 25V .1U K X7R 0603 1 PCE666 1552458000 C0603X104K025T CAP MC CP 25V .1U K X7R 0603 1 PCE667 1552458000 C0603X1

726 204520700217 BAV99 DIO SW 0.2A 70V SOT-23 SE. 1 PCE727 204520700217 BAV99 DIO SW 0.2A 70V SOT-23 SE. 1 PCE728 204520700305 BAV70LT1 DIO SW 0.2A 70

787 2921093612 MLB-160808-0120B-N CORE BEAD 100MHZ 120 OHM 0.2A 1 PCE788 2921093612 MLB-160808-0120B-N CORE BEAD 100MHZ 120 OHM 0.2A 1 PCE789 29210936

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!2. Electrical Characteristics 2.1 Power Supply 2.1.1 AC Input Input Voltage AC90-264V Frequency 47 / 63Hz Power Consumption: 60 W (max)