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ViewSonic VE710S - LCD Display - TFT Service Manual

17” color tft lcd display
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Service Manual

ViewSonic VE710s/b-21
VA721
Model No. VS10047
17" Color TFT LCD Display
(VE710s/b-2_VA721_SM_770 Rev. 1a Mar. 2004)
ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583

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Summary of Contents for ViewSonic VE710S - LCD Display - TFT

  • Page 1: Service Manual

    Service Manual ViewSonic VE710s/b-21 VA721 Model No. VS10047 17” Color TFT LCD Display (VE710s/b-2_VA721_SM_770 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 VE710s/b-2 VA721...

  • Page 4: Precautions And Safety Notices

    3. Keep wires away from high voltage, high temperature components and sharp edges. 4. Keep wires in their original position so as to reduce interference. 5. Please refer to user's manual for additional instructions on using this product. Confidential - Do Not Copy ViewSonic Corporation VE710s/b-2 VA721...

  • Page 5: Specification

    6. 640 x 480 @ 85Hz, 43.27kHz 7. 720 x 400 @ 70Hz, 31.5kHz 8. 800 x 600 @ 56Hz, 35.1kHz 9. 800 x 600 @ 60Hz, 37.9kHz 10. 800 x 600 @ 75Hz, 46.9kHz Confidential - Do Not Copy ViewSonic Corporation VE710s/b-2 VA721...
  • Page 6 8.GND 13.H.SYNC 4.NC 9. +5V 14.V.SYNC 5.GND 10.GND 15.SCL SIGNAL LEVEL CONNECTOR SIGNAL DESCRIPTION 0.7vp-p(VIDEO) GREEN 0.7vp-p(VIDEO) BLUE 0.7vp-p(VIDEO) H/SYNC TTL positive or negative V/SYNC TTL positive or negative DDC1/2B DDC1/2B Confidential - Do Not Copy ViewSonic Corporation VE710s/b-2 VA721...

  • Page 7: Front Panel Function Control Description

    Green = ON Contrast adjustment control Orange = Power Saving screen. Also a shortcut to Auto Image Adjust. Displays the Main Menu Power or exits the control screen On/Off and saves adjustments. Confidential - Do Not Copy ViewSonic Corporation VE710s/b-2 VA721...
  • Page 8 • 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 dislay.) Confidential - Do Not Copy ViewSonic Corporation VE710s/b-2 VA721...
  • Page 9 — Adds red to the screen image for warmer white and 6500K richer red. Default setting. — Adds green to the screen image for a darker color. 5400K Confidential - Do Not Copy ViewSonic Corporation VE710s/b-2 VA721...
  • Page 10 Vertical moves the screen image up and down. (Horizontal Size) adjusts the width of the screen image. H. Size Vertical size is automatic with your LCD dislay. NOTE: Confidential - Do Not Copy ViewSonic Corporation VE710s/b-2 VA721...
  • Page 11 OSD Timeout screen is displayed. For example, with a “15 second” setting, if a control is not pushed within 15 seconds, the display screen disappears. Confidential - Do Not Copy ViewSonic Corporation VE710s/b-2 VA721...
  • Page 12 [1] + [▼ ▼ ▼ ▼ ] + [▲ ▲ ▲ ▲ ] White Balance. (Keep pushing 5 sec) [1] + [▼ ▼ ▼ ▼ ] Power Lock [1] + [▲ ▲ ▲ ▲ ] OSD Lock Confidential - Do Not Copy ViewSonic Corporation VE710s/b-2 VA721...

  • Page 13: Circuit Description

    BIN0M Analog Input Reference ground for analog blue input 57 REXT External resistor 390 ohm to AVDD 52 RSDS Interface Pin Name Pin Type Function Pin CLKAP Output A-Link Positive RSDS Differential Clock Output from“Odd” Channel 118 Confidential - Do Not Copy ViewSonic Corporation VE710s/b-2 VA721...
  • Page 14 AVDD 3.3V Power ADC Power 45, 51, 55, 65 AVSS Ground ADC Ground 39, 42, 48, 56, 64, 68 AVDD_PLL 3.3V Power PLL Power 53 AVSS_PLL Ground PLL Ground 54 AVDD_MPLL 3.3V Power MPLL Power 35 Confidential - Do Not Copy ViewSonic Corporation VE710s/b-2 VA721...
  • Page 15 Input Current, High (IIH) -1.0 uA Input Current, Low (IIL) 1.0 uA Input Capacitance 5 pF DIGITAL OUTPUTS Output Voltage, High (VOH) VDDP-0.1 V Output Voltage, Low (VOL) 0.1 V DYNAMIC PERFORMANCE Confidential - Do Not Copy ViewSonic Corporation VE710s/b-2 VA721...
  • Page 16 There are two signal to control the inverter which come from system; Logic “high” level which send to I901 is turn on the inverter. BRI signal control brightness by DC level which was integral from PWM signal Confidential - Do Not Copy ViewSonic Corporation VE710s/b-2 VA721...

  • Page 17: Adjusting Procedure

    (2) Press “ ¡¶ ” key move cursor to “White Balance”, Press key do white balance adjustment. (3) Press “ ¡¿ ” key move cursor to “Color Temerature Adjust”, Press key, Then OSD will display Fig.2 Confidential - Do Not Copy ViewSonic Corporation VE710s/b-2 VA721...
  • Page 18 (b). Change to each mode in turn and wait for the monitor finish auto-alignment and save process before change to next mode. (c). After all of the modes are adjusted, exit OSD menu and press PWR OFF to exit factory mode. Confidential - Do Not Copy ViewSonic Corporation VE710s/b-2 VA721...

  • Page 19: Trouble Shooting Flow Chart

    CHECK 5V OK? POWER PCB CHECK CHECK I103, I106,I107 3.3V OK? SURROUND CAP SURROUND CAP BEAD OK? CHECK CHECK I104, I101, 1.8V OK? SURROUND CAP SURROUND CAP BEAD OK? BEAD OK? Confidential - Do Not Copy ViewSonic Corporation VE710s/b-2 VA721...
  • Page 20 ? Check X101 Crystal 14.318MHz is Change X101 working ? Check I105 Change I105 LCD Pin#70,71 data bus controller IC have signal Check panel Powers VLCD_3V3 VLCD_12V correct Change LCD panel Confidential - Do Not Copy ViewSonic Corporation VE710s/b-2 VA721...

  • Page 21: Recommended Spare Parts List

    FOOT PAD RUBBER O20*2TMM SQUARE GRAIN 1F03 PL-FK-0709-0152 2044266301 FUNCTION KEY VE710 ABS94HB (aluminum-plated) 1F05 M-MS-0808-9213 2051352000 NAME PLATE VIEWSONIC LOGO 3 PIN VA521 1F04 M-MS-0808-9214 2051352100 NAME PLATE VIEWSONIC E015-006 3-BIRD LOGO 2C02 M-MS-0808-9357 2051352201 NAME PLATE VIEWSONIC E015-019...

  • Page 22: Viewsonic Corporation

    FOOT PAD RUBBER O20*2TMM SQUARE GRAIN 5B03 PL-FK-0709-0152 2044266301 FUNCTION KEY VE710 ABS94HB (aluminum-plated) 1F03 M-MS-0808-9213 2051352000 NAME PLATE VIEWSONIC LOGO 3 PIN VA521 1F05 M-MS-0808-9214 2051352100 NAME PLATE VIEWSONIC E015-006 3-BIRD LOGO 1F04 M-MS-0808-9215 2051352200 NAME PLATE VIEWSONIC E015-017...
  • Page 23 FOOT PAD RUBBER O20*2TMM SQUARE GRAIN 1F03 PL-FK-0709-0152 2044266301 FUNCTION KEY VE710 ABS94HB (aluminum-plated) 1F05 M-MS-0808-9213 2051352000 NAME PLATE VIEWSONIC LOGO 3 PIN VA521 1F04 M-MS-0808-9214 2051352100 NAME PLATE VIEWSONIC E015-006 3-BIRD LOGO 2C02 M-MS-0808-9215 2051352200 NAME PLATE VIEWSONIC E015-017...
  • Page 24 RUBBER O20*2TMM SQUARE GRAIN 1F03 PL-FK-0709-0152 2044266301 FUNCTION KEY VE710 ABS94HB (aluminum-plated) 1F05 M-MS-0808-9213 2051352000 NAME PLATE VIEWSONIC LOGO 3 PIN VA521 1F04 M-MS-0808-9214 2051352100 NAME PLATE VIEWSONIC E015-006 3-BIRD LOGO 2C02 M-MS-0808-9357 2051352201 NAME PLATE NAME PLATE VIEWSONIC E015-019...
  • Page 25 VE710b-2 BOM LIST Location Item ViewSonic P/N Ref. P/N Description Q'ty R831 #N/A 2251482526 RES,CHIP 1/4 RC 1206 1/4 W 82.5Kohm F T L102 L103 L104 R111 R142 R143 R187 R198 E-R-0405-6600 2253200096 RES,CHIP 1/10W RC 0603 1/10W 0 ohm J T...
  • Page 26 VE710b-2 BOM LIST Location Item ViewSonic P/N Ref. P/N Description Q'ty Q803 RBQ902 149 E-Q-0402-0555 2361313691 XISTOR,NPN R KSC945C-G FAIRCHILD Q803 RAQ902 150 E-Q-0402-0718 2361316191 XISTOR,NPN R 2PC945P PHILIPS Q801 #N/A 2361610000 FET,N-CH APO9N701-A TO-220CMF APEC Q906 Q907 Q908 Q909...
  • Page 27 VE710b-2 BOM LIST Location Item ViewSonic P/N Ref. P/N Description Q'ty S801 #N/A 2407413100 SOCKET (AC INLET) 0711-2-P10-9 INALWAYS S801 #N/A 2407413300 SOCKET (AC INLET) SC-8R-F15A9 SUPERCOM P104 220 M-MS-0808-5488 2407630230 SOCKET,SMD 6240-30-OR5P 0.5*30P KYOCERA P105 #N/A 2407630250 SOCKET,SMD 6240-50-OR5P 0.5*50P KYOCERA...
  • Page 28 FOOT PAD RUBBER O20*2TMM SQUARE GRAIN 5B03 PL-FK-0709-0152 2044266301 FUNCTION KEY VE710 ABS94HB (aluminum-plated) 1F03 M-MS-0808-9213 2051352000 NAME PLATE VIEWSONIC LOGO 3 PIN VA521 1F05 M-MS-0808-9214 2051352100 NAME PLATE VIEWSONIC E015-006 3-BIRD LOGO 1F04 M-MS-0808-9215 2051352200 NAME PLATE VIEWSONIC E015-017...
  • Page 29 VE710s-2 BOM LIST Item ViewSonic P/N Ref. P/N Description Location Q'ty #N/A 2251439206 RES,CHIP 1/4 RC 1206 1/4 W 392 ohm F T R921 R927 #N/A 2251468116 RES,CHIP 1/4 RC 1206 1/4 W 6.81Kohm F T R824 #N/A 2251482526 RES,CHIP 1/4 RC 1206 1/4 W 82.5Kohm F T...
  • Page 30 VE710s-2 BOM LIST Item ViewSonic P/N Ref. P/N Description Location Q'ty Q904 Q905 #N/A 2360608496 FET,N-CH(SMD) 2N7002K SOT-23 VISHAY 147 E-Q-0402-0839 2361111191 XISTOR,PNP R 2SA1020(Y) TO-92 TOSHIBA Q110 Q803 RC Q902 148 E-Q-0402-0428 2361302591 XISTOR,NPN R 2SC945(P) TO-92 Q803 RBQ902...
  • Page 31 VE710S-s BOM LIST Item ViewSonic P/N Ref. P/N Description Location Q'ty #N/A 2404371007 CONNECTOR JST PH 8P TOP P=2.0 OR EQUAL P107 #N/A 2404371008 CONNECTOR JST PH 9P TOP P=2.0 OR EQUAL P101 #N/A 2404371012 CONNECTOR JST PH 13P TOP P=2.0 OR EQUAL...
  • Page 32 FOOT PAD RUBBER O20*2TMM SQUARE GRAIN 1F03 PL-FK-0709-0152 2044266301 FUNCTION KEY VE710 ABS94HB (aluminum-plated) 1F05 M-MS-0808-9213 2051352000 NAME PLATE VIEWSONIC LOGO 3 PIN VA521 1F04 M-MS-0808-9214 2051352100 NAME PLATE VIEWSONIC E015-006 3-BIRD LOGO 2C02 M-MS-0808-9215 2051352200 NAME PLATE VIEWSONIC E015-017...
  • Page 33 VA721 BOM Item ViewSonic P/N Ref. P/N Description Location Q'ty R824 #N/A 2251468116 RES,CHIP 1/4 RC 1206 1/4 W 6.81Kohm F T R831 #N/A 2251482526 RES,CHIP 1/4 RC 1206 1/4 W 82.5Kohm F T L102 L103 L104 R111 R142 R143 R187 R198 R199 R201...
  • Page 34 VA721 BOM Item ViewSonic P/N Ref. P/N Description Location Q'ty 2349410496 CAP,CHIP 85'C CS 1206/Y5V/50V 0.1u Z T C807 C811 C902 C920 C921 #N/A C924 C197 #N/A 2349901096 CAP,CHIP SPEC AC0603470A 47P±10% INPAQ C805 #N/A 2357510708 EC HI-RIPPLE 105C 400V EC 100u/400V 18*32 P=7.5 S...
  • Page 35 VA721 BOM Item ViewSonic P/N Ref. P/N Description Location Q'ty L802 #N/A 2371111900 COIL,CHOKE 250uH +-7% L805 #N/A 2371121301 COIL,CHOKE CHOKE 21mH 0.32mm*35Ts ET-20 L901 L902 #N/A 2371140401 COIL,CHOKE 300mH/300mH (0.05mm/410Ts)*2 L803 L804 199 E-L-0407-1533 2371154600 COIL,CHOKE JD176 5.2UH 15.5T(REF)

  • Page 36: Exploded Diagram And Spare Parts List

    8. Exploded Diagram And Spare Parts List FIG.1 15 X2 20 X4 NOTE.1 13-1 13-2 MAIN PCB ASS'Y 11 X3 POWER PCB ASS'Y 16 X4 NOTE.1 22 X2 FIG.1 KEYPAD PCB ASS'Y Confidential - Do Not Copy ViewSonic Corporation VE710s/b-2 VA721...
  • Page 37 LCD PANEL P104 P105 P901 P802 P101 MAIN PCB POWER PCB P107 P102 P701 P902 KEYPAD PCB I/O CABLE Confidential - Do Not Copy ViewSonic Corporation VE710s/b-2 VA721...
  • Page 38 CABI BACK VE710 ABS94HB BLACK 4001 2C01 VA721 C-BC-0302-0587 2051352200 NAME PLATE VIEWSONIC E015-017 2C02 VE710s-2 M-MS-0808-9215 2051352201 NAME PLATE NAME PLATE VIEWSONIC E015-019 2C02 VE710b-2 M-MS-0808-9357 2051352200 NAME PLATE VIEWSONIC E015-017 2C02 VA721 M-MS-0808-9215 2083740082 SCREW,BND T+ M4*8(BND T+)

  • Page 39: Block Diagram

    V-Sync GBO ¡£ 0¡B4¡¤ OSP¡BESP¡B0INV I107 24LC16 EEPROM HW RESET P601 I601 TDA7496L DDC-SDA I106 ONBACKLI AUDIO AMP VOLUME CONTROL MTV312M64 DDC-SCL (OPTION) SPEAKER MUTE P603 AUDIO IN KEY- PAD LED Confidential - Do Not Copy ViewSonic Corporation VE710s/b-2 VA721...

  • Page 40: Schematic Diagrams

    .1uF 47uF/16V .1uF VAA2 VAA3 R107 R108 C113 C114 VAA3 .1uF 22uF/16V VAA4 I102 RC1117/3.3 (AU) VAA4 Q104 MMBT3906 PC5V D129 D128 R109 PC5V 1N4148 1N4148 D128,D129 0 OHM 1206 (AU) Confidential - Do Not Copy ViewSonic Corporation VE710s/b-2 VA721...
  • Page 41 D112 47PF 47PF R199 I103A I103F R123 HSYNC C125 74LVC14 74LVC14 SO-14 SO-14 0603 3.3V R200 NC C191 0.1U 0603 I103C I103D R122 VSYNC C126 74LVC14 74LVC14 SO-14 SO-14 0603 R198 Confidential - Do Not Copy ViewSonic Corporation VE710s/b-2 VA721...
  • Page 42 R141 VAA4 VDPLL NC/EINV OINV L112 OINV 14.318MHZ VAA4 GPO0 200R XOUT GPO0 C156 22pF GPO1 GPO1 GPO2 C158 GPO2 C157 .1uF GPO3 10uF/50V BYPASS GPO3 GPO4 AVSS_LPLL GPO4 C159 .1uF Confidential - Do Not Copy ViewSonic Corporation VE710s/b-2 VA721...
  • Page 43 VLCD_12V R150 0 0805 C166 C167 R151 NC 0805 VLCD_12V .1uF .1uF R152 0 0805 CON50p C164 C165 47uF/16V 100uF/16V R152, R150, R147, R146 0 0805 R151, R149, R148 0 0805 Confidential - Do Not Copy ViewSonic Corporation VE710s/b-2 VA721...
  • Page 44 SST3904 PWR/SW R180 PSM/LED R181 VCPU PWR/LED R182 DOWN R183 Q107 R176 LED_G GREEN SST3904 C198 GREEN ORANGE S701 C177 C178 C179 C180 C181 C182 C183 S705 S704 S703 S702 D701 Confidential - Do Not Copy ViewSonic Corporation VE710s/b-2 VA721...
  • Page 45 0.1uF C909 D911 D912 330PF 1N4148 1N4148 Q908 C904 R916 R926 5.1K D909 1N4148 AP9960J 6800PF C927 EEL-19 R933 6800PF D910 1N4148 R928 221 1% C919 0.047uF Q909 AP9960J D916 P6KE30A Confidential - Do Not Copy ViewSonic Corporation VE710s/b-2 VA721...
  • Page 46 R825 82.5K (3.3V) BEAD 10K 1% D810 F801 I802 12B1(5V) T2.5A/250V TLP621 C826 0.1UF R810 1.82K 1% C811 R813 C827 I803 C812 0.1uF 1uF/50V TL431D S801 R815 R809 AC IN 100~240V Confidential - Do Not Copy ViewSonic Corporation VE710s/b-2 VA721...
  • Page 49 1.3. CON PCB TOP VIEW 11.4. CON PCB BOTTOM VIEW...
  • Page 50 11.5. POWER PCB TOP VIEW Confidential - Do Not Copy ViewSonic Corporation VE710s/b-2 VA721...
  • Page 51 11.6. POWER PCB BOTTOM VIEW Confidential - Do Not Copy ViewSonic Corporation VE710s/b-2 VA721...

  • Page 52: Pcb Layout Diagrams

    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...

This manual is also suitable for:

Ve710s-21Ve710b-21Va721Vs10047Ve710s/b-21

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