ViewSonic VG810B Service Manual
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ViewSonic VG810B Service Manual

ViewSonic VG810B Service Manual

18” color tft lcd display
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Service Manual

ViewSonic VG810s/b-1
Model No. VLCDS27944-1W/-2W
18" Color TFT LCD Display
(VG810s/b_SM_720 Rev. 1a Mar. 2004)
ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583

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  • Page 1: Service Manual

    Service Manual ViewSonic VG810s/b-1 Model No. VLCDS27944-1W/-2W 18” Color TFT LCD Display (VG810s/b_SM_720 Rev. 1a Mar. 2004) 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

    4. Circuit Description 5. Adjusting Procedure 6. Trouble Shooting Flow Chart 7. Recommended Spare Parts List 8. Exploded Diagram And Spare Parts List 9. Block Diagram 10. Schematic Diagrams 11. PCB Layout Diagrams Confidential - Do Not Copy ViewSonic Corporation VG810s/b...

  • Page 4: Precautions And Safety 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. Confidential - Do Not Copy ViewSonic Corporation VG810s/b...

  • Page 5: Specification

    UL, cUL, FCC-B, CB, CE, EPA, NOM, TUV/GS, TUV ERGO (covers ISO13406-2 & MPRII), NEMKO, SEMKO, DEMKO, FIMKO, GOST-R + 20 ORIGINAL COPIES HYGIENIC, PCBC, VCCI, BSMI, CCEE, PSB, C-TICK, TUV-S, TCO 99(VG810b), TCO'03(VG810s), Energy, Energy Star, PCT, Taiwan Green Mark...
  • Page 6 (x = 0.313 +/- 0.03 , y = 0.329 +/- 0.03) (@ Contrast / Brightness max) 2.2.4 Synchronization Horizontal ¡G30 to 82 kHz Vertical ¡ G 50 to 85 Hz Non-interlaced Recommended 1280 x 1024 @60Hz mode Confidential - Do Not Copy ViewSonic Corporation VG810s/b...
  • Page 7 Apply VESA 1280x1024 / 60Hz , full white pattern . 2.3.3.4.2 Adjust R, G, B Gain to meet following chromaticity spec. 5000°K ¡÷ x = 0.346 ± 0.003, y = 0.359 ± 0.003 , Y > 180 cd/m Confidential - Do Not Copy ViewSonic Corporation VG810s/b...
  • Page 8 OVER 180 cd/m (Brightness 100%, Contrast 70%) (Default) (Default) 0.346 ¡Ó 0 .010 0.359 ¡Ó 0 .010 5000°K OVER 180 cd/m (Brightness 100%, Contrast 70%) (Default) (Default) User mode (R, G, B Max.) Confidential - Do Not Copy ViewSonic Corporation VG810s/b...
  • Page 9 Burn in off ¡³ ¡³ ¡³ Burn in on ¡³ ¡³ ¡³ All mode recall Lock(Unlock) ¡³ ¡³ Power Key Lock(Unlock) ¡³ ¡³ Osd Key ¡³ ¡³ ¡³ Read EDID ¡³ ¡³ ¡³ Confidential - Do Not Copy ViewSonic Corporation VG810s/b...
  • Page 10 EDID Serial No. format 2.5.1 EDID for VG810s 2.5.1.1 Analog EDID 128 BYTES OF EDID CODE¡G 2.5.1.2 Digital EDID: 128 BYTES OF EDID CODE¡G Confidential - Do Not Copy ViewSonic Corporation VG810s/b...
  • Page 11 2.5.2 EDID for VG810b 2.5.2.1 Analog EDID 128 BYTES OF EDID CODE¡G 2.5.2.2 Digital EDID 128 BYTES OF EDID CODE: Confidential - Do Not Copy ViewSonic Corporation VG810s/b...
  • Page 12 H- front porch V-sync V-back porch Count num (V-total) V-front porch H-sync. Polarity Positive Positive Positive Positive Positive Negative Negative V-sync Polarity Positive Positive Positive Positive Positive Negative Negative H-resolution (dots) 1024 V-resolution (lines) Confidential - Do Not Copy ViewSonic Corporation VG810s/b...
  • Page 13 Count num (V-total) 1066 V-front porch H-sync. Polarity Negative Negative Positive Positive Positive Negative V-sync Polarity Negative Negative Positive Positive Positive Negative H-resolution (dots) 1024 1024 1024 1024 1280 1280 V-resolution (lines) 1024 Confidential - Do Not Copy ViewSonic Corporation VG810s/b...
  • Page 14 V-sync V-back porch Count num (V-total) V-front porch H-sync. Polarity Positive Positive Positive Positive Positive Negative Negative V-sync Polarity Positive Positive Positive Positive Positive Negative Negative H-resolution (dots) 1024 1024 V-resolution (lines) Confidential - Do Not Copy ViewSonic Corporation VG810s/b...
  • Page 15 V-back porch Count num (V-total) 1066 V-front porch H-sync. Polarity Negative Positive Positive Positive Negative V-sync Polarity Negative Positive Positive Positive Negative H-resolution (dots) 1024 1024 1024 1280 1280 V-resolution (lines) 1024 Confidential - Do Not Copy ViewSonic Corporation VG810s/b...

  • Page 16: Front Panel Function Control Description

    Also a shortcut to toggle between analog and digital connections. Power light Green = ON Orange = Power Saving Audio Mute button turns the sound off. Power On/Off Confidential - Do Not Copy ViewSonic Corporation VG810s/b...
  • Page 17 • If necessary, make small adjustments using H POSITION and V POSITION until the screen image is completely visible. (The black border around the edge of the screen should barely touch the illuminated "active area" of the LCD display.) Confidential - Do Not Copy ViewSonic Corporation VG810s/b...
  • Page 18 Balance speaker. adjusts the low (bass) frequency audio output. Bass adjusts the high (treble) frequency audio output. Treble temporarily silences audio output. Mute Confidential - Do Not Copy ViewSonic Corporation VG810s/b...
  • Page 19 ▼ To adjust selected color, press Important: If you select RECALL from the Main Menu when the product is set to a Preset Timing Mode, colors return to the 6500K factory preset. Confidential - Do Not Copy ViewSonic Corporation VG810s/b...
  • Page 20 Horizontal Size sharpens focus by aligning the illuminated text and/ Fine Tune or graphic characters. adjusts the clarity and focus of the screen image. Sharpness Confidential - Do Not Copy ViewSonic Corporation VG810s/b...
  • Page 21 Memory Recall settings if the display is operating in a factory Preset Timing Mode listed in this user guide. Exception: This control does not affect changes made with the User Color control. Confidential - Do Not Copy ViewSonic Corporation VG810s/b...

  • Page 22: Circuit Description

    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 4OHM speakers. Pin 8 is the mute/stand-by. Confidential - Do Not Copy ViewSonic Corporation VG810s/b...

  • Page 23: Adjusting Procedure

    8.3 Interference of EMI: The inspection shall be carried out in the place where a set is not disturbed by external unnecessary electric wave and magnetic field. 8.4 Temperature: 24 ± 2 8.5 Humidity: 65 ± 20%. Confidential - Do Not Copy ViewSonic Corporation VG810s/b...
  • Page 24 "RGB Reset" function Input 1280x1024 / 60Hz Full white pattern Push "1 + DC power" 3 second Select "Color Adjust" to adjust "9300K" , "6500K" "5400K" , "5000K" Push Exit adjust OSD Confidential - Do Not Copy ViewSonic Corporation VG810s/b...
  • Page 25 5.2.1.6.3 Input 1280x1024 / 60Hz & 16 grays pattern at 100IRE, adjust brightness 100%, and contrast 100%. 5.2.1.6.4 9300K / 6500K / 5400K / 5000K, the 16 grays only had 4 grays can saturation. Confidential - Do Not Copy ViewSonic Corporation VG810s/b...

  • Page 26: Trouble Shooting Flow Chart

    2. Disconnected between CN251 and power board. Failure point FB251, FB251, F251 failure Check that C255 positive is at 5V. Failure point P251, IC251, L251 failure Check: 1. C262 is O/P 2.5V. 2. IC253 is O/P 3.3V. Confidential - Do Not Copy ViewSonic Corporation VG810s/b...
  • Page 27 Check that C255 positive is at 5V CN251 is approximately 12V Power board failure Check CN302 pin8 is IC251 failure 12V, pin3 is 5V 1. Check Q309, Q310 pin. Inverter failure 2. Check FB315, FB316 Confidential - Do Not Copy ViewSonic Corporation VG810s/b...
  • Page 28 Check CN302 pin8 is 12V, 1. D252, D253 failure. pin3 is 5V 2. IC253 failure. Check C255 is O/P 5V. 1. Check Q309, Q310. Inverter failure 2. Check FB315, FB316 IC251. D251 failure Confidential - Do Not Copy ViewSonic Corporation VG810s/b...
  • Page 29 Check the the cable is fully conneted between the interface board and key board Failure point Failure point 1. D305, D306 ~ D311, D312 failure. The cable is disconnected. 2. TACT switch failure. Confidential - Do Not Copy ViewSonic Corporation VG810s/b...
  • Page 30 Figure of Waveform Confidential - Do Not Copy ViewSonic Corporation VG810s/b...
  • Page 31 Confidential - Do Not Copy ViewSonic Corporation VG810s/b...

  • Page 32: Recommended Spare Parts List

    7. Recommended Spare Parts List VG810b Recommended Spare Parts List Item ViewSonic P/N Ref. P/N Description Location Q'ty A-PC-0106-0193 3070000501 AC POWER CORD L1800 BLACK EURO A-AU-0120-0033 3080005100 CABLE AUDIO L=1800 BLK PC99 A-VC-0101-0359 3080426400 CABLE D-SUB/D-SUB L1800 BLK 20276...
  • Page 33 VG810b Recommended Spare Parts List Item ViewSonic P/N Ref. P/N Description Location Q'ty M-BK-0805-0042 3461234301 SHIELD CAN SPTE 226*62.8*18 T.3 M-MS-0808-9130 3461752700 HINGE-R SUS304 62*20 T2 M-MS-0808-9131 3461752800 HINGE-L SUS304 62*20 T2 M-BK-0805-0043 3461753201 BRACKET ARM SECC 156*126.1*153.6 T2 M-BK-0805-0044 3461753301 BRACKET BASE SECC 266.6*161.4 T2...
  • Page 34 M-LB-0813-0712 3200449700 LABEL WARING 0.125 M-MS-0808-9126 3200655300 NAME PLATE VSC 3-BIRD LOGO AL 14.5*10.0 FOR F/B ,REV:00 M-MS-0808-9127 3200655500 NAME PLATE AL VIEWSONIC L38 T1.2 FOR F/B ,REV:00 M-LB-0813-0384 3200712700 LABEL CONTROL 100*90 Stick on pallet 0.063 M-LB-0813-0551 3200744000 LABEL BAR CODE 55*15 VSC-G...
  • Page 35 VG810s Recommended Spare Parts List Item ViewSonic P/N Ref. P/N Description Location Q'ty P-FM-0602-0836 3500116101 END BLOCK-BOTTOM L18FMW05AAB 704/40' P-FM-0602-0837 3500116201 END BLOCK-TOP L18FMW05AAB 704/40' M-MS-0808-9132 3500932402 PE BAG 640*580*.06T CLEAR M-MS-0808-8762 3500937501 PE BAG 300*200*0.06T PACKING CABLE*4 M-MS-0808-9133 3510878400 CAP PAPER 1140*1050*120 BY SEA FOR 32 S 0.032...
  • Page 36 LABEL WARING BY AIR SHIPPING 0.125 M-MS-0808-9126 3200655300 NAME PLATE VSC 3-BIRD LOGO AL 14.5*10.0 FOR F/B ,REV:00 M-MS-0808-9127 3200655500 NAME PLATE AL VIEWSONIC L38 T1.2 FOR F/B ,REV:00 M-LB-0813-0384 3200712700 LABEL CONTROL 100*90 Stick on pallet 0.063 M-LB-0813-0551 3200744000...
  • Page 37 M-MS-0808-7820 3520130500 DRYER 15G 80*60 REV:00 PL-SP-0723-0002 3520142700 PLASTIC STRIP W=12 T.5 BLACK M-MS-0808-9136 3532076701 MANUAL PACKING ASSY VSC VG810B PUT ON CARTON M-MS-0808-8396 3520094201 PE BAG 260*155*0.1T M-MS-0808-9136 3532076701 MANUAL QUICK START GUIDE VSC VG810S PUT IN MANUAL PACKING...
  • Page 38 VG810b BOM LIST Item ViewSonic P/N Ref. P/N Description Location Q'ty #N/A 313331000 RES CH 1/4W 330 J 1206 #N/A 313471000 RES CH 1/4W 470 J 1206 R205 #N/A 313514000 RES CH 1/4W 510K J 1206 R104, R105, R106, R107...
  • Page 39 VG810b BOM LIST Item ViewSonic P/N Ref. P/N Description Location Q'ty E-C-0404-4861 140152211467 CAP AL LD 35V 220U M 10*12.5 TP5 C33, C36 C254, C255, C262, C265, C311, E-C-0404-4805 142122211200 CAP AL 16V 220U M 8*11.5 TP5 C319 E-C-0404-4806 142124711200 CAP AL 16V 470U M 10*12.5 TP5...
  • Page 40 VG810b BOM LIST Item ViewSonic P/N Ref. P/N Description Location Q'ty #N/A 203812580236 DIO ZEN 0.5W 8.57-9.01V LLDS(MINIMELF) D801, ZD02 #N/A 203812760036 DIO ZEN 0.5W 24.97-26.26V LLDS(MINIMELF) D104 E-D-0403-1937 204322000207 DIO SW 0.25A 200V SOD-27(DO-35) D103 D14, D15, D16, D17, D18, D19,...
  • Page 41 VG810b BOM LIST Item ViewSonic P/N Ref. P/N Description Location Q'ty FB301, FB302, FB303, FB304, #N/A 2921093612 BEAD CH 100MHZ 120 OHM 0.2A 0603 FB305, FB306, FB307, FB308, FB309, FB310 FB251, FB252, FB254, FB311, FB312, FB313, FB315, FB316, #N/A 2921113212...
  • Page 42 LABEL WARING BY AIR SHIPPING 0.125 M-MS-0808-9126 3200655300 NAME PLATE VSC 3-BIRD LOGO AL 14.5*10.0 FOR F/B ,REV:00 M-MS-0808-9127 3200655500 NAME PLATE AL VIEWSONIC L38 T1.2 FOR F/B ,REV:00 M-LB-0813-0384 3200712700 LABEL CONTROL 100*90 Stick on pallet 0.063 M-LB-0813-0551 3200744000...
  • Page 43 VG810s BOM LIST Item ViewSonic P/N Ref. P/N Description Location Q'ty PL-PD-0714-0068 3240957500 RUBBER FOOT 75*10 T3 BKT BASE M-MS-0808-9137 3240977700 RUBBER HOLE PULG OD11.4 ID6.5 T7.36 BLK ARM REAR M-CV-0830-2381 3360916300 ARM FRONT ABS 41 VX700-2 M-CV-0830-2509 3360919201 ARM COVER REAR ABS 41 S8LBA2LS...
  • Page 44 VG810s BOM LIST Item ViewSonic P/N Ref. P/N Description Location Q'ty 128 B-SB-0221-0589 5600110126 LCD INVERTER BD ASSY L18FMR 05AAB #N/A 2970040102 PWB D0 FR-4 179*40 (INVERTER BD) 130 E-R-0405-5763 23100000 RES CF 1/2W 10 J R112 #N/A 133104000 RES MOF 1W 100K J...
  • Page 45 VG810s BOM LIST Item ViewSonic P/N Ref. P/N Description Location Q'ty #N/A 910500316 NTC R=5 OHM L 4A NTC101 #N/A 923610045 VARISTOR 360V 47J 2500A VA102 #N/A 1101030027 CAP Y CD 250VAC 100P K B I CY101, CY102 #N/A 1101030032...
  • Page 46 VG810s BOM LIST Item ViewSonic P/N Ref. P/N Description Location Q'ty #N/A 203812550631 DIO ZEN 0.5W 6.66-7.01V MINIMELF D802, D803, D804, D805 238 E-D-0403-2054 203812550636 DIO ZEN 0.5W 6.66-7.01V LLDS(MINIMELF) D802, D803, D804, D805 #N/A 203812580223 DIO ZEN 0.5W 8.57-9.01V MINIMELF...
  • Page 47 VG810s BOM LIST Item ViewSonic P/N Ref. P/N Description Location Q'ty FB301, FB302, FB303, FB304, FB305, #N/A 2921093612 BEAD CH 100MHZ 120 OHM 0.2A 0603 FB306, FB307, FB308, FB309, FB310 FB251, FB252, FB254, FB311, FB312, FB313, FB315, FB316, FB401, FB402,...

  • Page 48: Exploded Diagram And Spare Parts List

    3460163502 BRACKET HINGE SECC 204*63.5 T1.2 C-BC-0302-0564 3360248000 CABINET BACK ABS 41 S8LRC1LS C-BC-0302-0582 3360248102 R/C ABS 41 VG810S S8LRC1LS M-MS-0808-7739 3200648800 NAME PLATE ABS 94HB VIEWSONIC 82.83*34.9 M-CV-0830-2381 3360916300 ARM FRONT ABS 41 VX700-2 M-CV-0830-2394 3361205900 COVER BASE ABS 41 VG800-2 M-MS-0808-8157...
  • Page 49 Confidential - Do Not Copy ViewSonic Corporation VG810s/b...
  • Page 50 Confidential - Do Not Copy ViewSonic Corporation VG810s/b...
  • Page 51 Confidential - Do Not Copy ViewSonic Corporation VG810s/b...

  • Page 52: Block Diagram

    C N 6 0 2 A n a l o g I C 4 0 1 I / P H D - 1 5 C N 4 0 1 C O N D I S P L A Y E N G I N E 1 5 P I N S L V D S V G A - S D A...

  • Page 63: Pcb Layout Diagrams

    11. PCB Layout Diagrams Main Board Confidential - Do Not Copy ViewSonic Corporation VG810s/b...
  • Page 64 Main Board Confidential - Do Not Copy ViewSonic Corporation VG810s/b...
  • Page 65 Power Board Confidential - Do Not Copy ViewSonic Corporation VG810s/b...
  • Page 66 Control Board Confidential - Do Not Copy ViewSonic Corporation VG810s/b...
  • Page 67 Add.: Fax: Tel: E-mail: After completing this form, please return it to ViewSonic Quality Assurance 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) Confidential - Do Not Copy...

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