ViewSonic VA703b-4 User Manual Download

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ViewSonic VA703b-4

VA703m-4

Model No. VS11366

17” Color TFT LCD

Display

(VA703b-4_VA703m-4_SM Rev. 1

Oct

. 2006)

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

Service Manual

Summary of Contents for VA703b-4

Page 1: ...ViewSonic VA703b 4 VA703m 4 Model No VS11366 17 Color TFT LCD Display VA703b 4_VA703m 4_SM Rev 1b Oct 2006 ViewSonic 381 Brea Canyon Road Walnut California 91789 USA 800 888 8583 Service Manual...

Page 2: ...ed 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...

Page 3: ...y Notices 1 2 Specification 4 3 Front Panel Function Control Description 14 4 Circuit Description 18 5 Adjustment Procedure 25 6 Troubleshooting Flow Chart 48 7 Recommended Spare Parts List 56 8 Explo...

Page 4: ...d instructions that accompany the monitor 8 Please pay special attention to power supply overloads as electrical shock or fire may occur 9 Do not place anything on the power cord Do not hang the power...

Page 5: ...s Incorrect methods Only touch the metal frame of the LCD panel or the front cover of the monitor DO not touch the surface of the POL Surface of the LCD panel is pressed by fingers and that may cause...

Page 6: ...l Do Not Copy VA703b 4_VA703m 4 Place the monitor on a clean and soft foam pad Placing the monitor on a foreign objects that could scratch The surface of the Panel or cause mura The panel is placed fa...

Page 7: ...T LCD panel CMO M170E5 L09 Recommend resolution 1280 x 1024 60Hz Analog 75ohms 0 7 1 0 Vp p Yes Input Signal Digital DVI D No Separate Sync Yes Composite Sync No Sync Compatibility Sync on Green No PC...

Page 8: ...3rd TFT LCD panel CMO M170E5 L09 Scalar Realtek Model RTD2023L Input Signal Analog Sync Compatibility Separate Audio 1 W 15 distortion for VA703m 4 only Adapter No Power Cable Refer to Appendix D Anal...

Page 9: ...monitor for five minutes Video Cable Connector DB 15 Pin out Compliant DDC 2B Video Signals 1 Video RGB Analog Separate Video Impedance 75 Ohms Analog Maximum PC Video Signal 950 mV with no damage to...

Page 10: ...TURE Power Supply Transient Immunity SHALL BE ABLE TO WITHSTAND AN ANSI IEEE C62 41 1980 6000V 200 AMPERE RING WAVE TRANSIENT TEST WITH NO DAMAGE Power Supply Line Surge Immunity Shall be able to with...

Page 11: ...Yes 9 800 x 600 56Hz 35 1kHz Yes 10 800 x 600 60Hz 37 9kHz Yes 11 800 x 600 72Hz 48 1kHz Yes 12 800 x 600 75Hz 46 9kHz Yes 13 800 x 600 85Hz 53 7kHz Yes 14 MAC 832 x 624 75Hz 49 7kHz Yes 15 1024 x 768...

Page 12: ...t the first time a new mode is detected See section 0 Touch Function Actions 2 5 AUDIO INTERFACE SPEAKER SPECIFICATION for VA703m 4 only Line input connection 3 5 mm stereo jack Line input signal 1 0V...

Page 13: ...deg Typ CR 10 155deg Typ CR 5 Response Time 10 90 Ta 25 C 8 ms Tr 2 ms Tf 6 ms Typ 16ms Tr 4 ms Tf 12 ms max Panel Defects Please see Panel Quality Specifications 2nd Panel Source SVA 170SX01 TB Type...

Page 14: ...75 Lv Brightness Condition Contrast 100 Lv Brightness 0 Lv Brightness 100 x 100 55 Lv Contrast Condition Brightness 100 Lv Contrast 0 Lv Contrast 100 x 100 30 3rd Panel Source CMO M170E5 L09 Type TN L...

Page 15: ...CCT max 6185K CCT min 4935K Preset 3 u v 0 01 Full White pattern Preset Color Temperature Each color preset shall be adjustable Red Green and Blue shall be individually controlled Video Cards Compatib...

Page 16: ...ements of TCO03 Front Bezel Color The reference for the bezel is the silver color VA703m and the midnight gray color VA703b chip provided by ViewSonic Neck Base and Rear Cover Color The reference for...

Page 17: ...x400 mode 1 keep pushing 5 sec White Balance Not shown on user s guide 1 Power Lock 1 OSD Lock Remark All the short cuts function are only available while OSD off Front Panel Hardware Controls Power S...

Page 18: ...s the OSD by pressing any of the buttons 1 2 a message will appear on the screen for 3 seconds showing OSD Locked The OSD lock will be deactivated by pressing the front panel control buttons 1 again f...

Page 19: ...ld have no effect for Language Power Lock User Color Settings Resolution Notice Actions 1 Resolution Notice OSD should show on screen after changing to non native mode for 30 sec 2 The OSD should disa...

Page 20: ...Temperature 6500K Treble N A Sharpness 0 Bass N A OSD H Position 50 720x400 640x400 720x400 OSD V Position 50 640x480 60Hz 720x480 60Hz 640x480 60Hz OSD Time Out 15 Sec In SOG and Composite 720x480 60...

Page 21: ...V output voltage under 32V to protect the panel After system went to power saving mode the R828 would no loaded This was detected by Z803 active the R828 to load or not B Scaling Controller Overview R...

Page 22: ...g HS input 10 4 5 AVS AI 43 Analog VS input 2 4 5 PLL 8 pins Name I O Pin No Description Note XO AI 1 Reference clock output XI AO 2 Reference clock input DPLL_GND AG 3 Ground for digital PLL DPLL_VDD...

Page 23: ...59 BB3P BB3P NC BBLU 7 BBLU 7 60 BB3N BB3N NC BBLU 6 BBLU 6 61 BB2P BB2P NC BBLU 5 BBLU 5 62 BB2N BB2N NC BBLU 4 BBLU 4 63 BB1P BB1P NC BBLU 3 T0 BBLU 3 64 BB1N BB1N NC BBLU 2 T1 BBLU 2 65 BCLKP BCLK...

Page 24: ...ARED 7 104 AR3N TCON 6 NC ARED 6 T29 ARED 6 105 AR2P TCON 5 NC ARED 5 TH ARED 5 106 AR2N TCON 1 NC ARED 4 TV ARED 4 107 AR1P TCON 0 NC ARED 3 TE ARED 3 108 AR1N NC NC ARED 2 TK ARED 2 113 PWM2 COUT TC...

Page 25: ...ND G 22 RXCP I 23 Differential Data Input RXCN I 24 Differential Data Input TMDS_GND G 25 TMDS_VDD P 26 3 3V PWM Interface 3 2 1 pin PWM1 PWM2 can be selected from 1 of 3 possible pins Name I O Pin No...

Page 26: ...F data input output TCON 7 PWM1 1 2 3 5 6 8 8mA no slew Power Ground 22 pins Name I O Pin No Description 3 3V Power P 49 121 VCCIO 2 3 3V Ground G 48 120 GNDIO 2 3 3V Power P 58 71 83 95 110 PVCC 5 3...

Page 27: ...equency clock output Two external interrupts INT1 is shared with Slave IIC interrupt source Maximum 4 channels of 6 bit ADC Flash ROM code protection selection 44 pin PLCC package D INVERTER In order...

Page 28: ...640 x 480 75Hz 37 5kHz Yes 7 640 x 480 85Hz 43 27kHz Yes 8 720 x 400 70Hz 31 5kHz Yes 9 800 x 600 56Hz 35 1kHz Yes 10 800 x 600 60Hz 37 9kHz Yes 11 800 x 600 72Hz 48 1kHz Yes 12 800 x 600 75Hz 46 9kHz...

Page 29: ...ViewSonic Corporation 26 Confidential Do Not Copy VA703b 4_VA703m 4...

Page 30: ...ViewSonic Corporation 27 Confidential Do Not Copy VA703b 4_VA703m 4...

Page 31: ...e is made in TE for firmware upgrade 1 Power adapter for firmware upgrade this adapter is made in TE 1 A computer with Windows XP VA703m b monitor no firmware a additional monitor for system display I...

Page 32: ...ter by USB cable 2 2 3 Connect PO3 of ISP fixture with monitor VGA port by VGA cable 2 2 4 Connect mouse keyboard AC power monitor with computer 2 2 5 Plug AC cable in power adapter AC jack 2 2 6 Conn...

Page 33: ...ble PO3 to VGA cable jumper AC JACK DC_IN port VGA port NOTE Do STEP2 2 6 and STEP2 2 7 for monitor s main board only Monitor firmware upgrade will jump this step ViewSonic Corporation 30 Confidential...

Page 34: ...2 3 Soft install Install ISP3 0 program by selecting and clicking isp3 0 setup exe press YES or NEXT buttons until setup is complete ViewSonic Corporation 31 Confidential Do Not Copy VA703b 4_VA703m 4...

Page 35: ...ViewSonic Corporation 32 Confidential Do Not Copy VA703b 4_VA703m 4...

Page 36: ...ViewSonic Corporation 33 Confidential Do Not Copy VA703b 4_VA703m 4...

Page 37: ...Installation will create a icon for ISP application in START MENU PROGRAM Press finish button exit setup ViewSonic Corporation 34 Confidential Do Not Copy VA703b 4_VA703m 4...

Page 38: ...between main board is in well condition see attached file 1 1 1 2 per the product model choose the corresponding Model DCC written process the model mr171 AAA should apply the SIP Program ViewSonic Co...

Page 39: ...STEP2 Creat security file Choose the Tab create Security File to enter next Dialogue Item ViewSonic Corporation 36 Confidential Do Not Copy VA703b 4_VA703m 4...

Page 40: ...rameter save them and take up the next step STEP4 Choose the Tab MTV TYPE Choose the MTV512M64 from the TAB ISP ITEMS DCC Written model Diagram Table as below ViewSonic Corporation 37 Confidential Do...

Page 41: ...STEP5 DCC WRITTEN methods ViewSonic Corporation 38 Confidential Do Not Copy VA703b 4_VA703m 4...

Page 42: ...the Tab LOAD MCU FILE Looking up the related BIOS document in my Computer and Point the confirm Tab when the BIOS Documents loading is successful you can find the picture as above ViewSonic Corporati...

Page 43: ...a comply to the bios DCC written if there is no problem pls press the run menu to write If showed the picture as above pls check whether the DDC write fixture is well Connected with PC the power board...

Page 44: ...The normal program is writing The program has finished writing ViewSonic Corporation 41 Confidential Do Not Copy VA703b 4_VA703m 4...

Page 45: ...Disassembly Procedure 1 Remove the hinge cover 2 Unscrew the back cover s screw 3 open the back cover pull out the speaker wire 4 Tear off the aluminum foil where fix up the light Confidential Do Not...

Page 46: ...here cover the FFC cable take out the key board from bezel pull out FFC cable from the main board 6 pull out the two pcs screw form the main board 7 Pull out the two screws where lie in the two sides...

Page 47: ...fix up the bezel and then take out the bezel 9 Take out the screw which covers the shield 10 Pull out the lamp wire material 11 take out the screw form the power board pull out the power boards conne...

Page 48: ...onic Corporation 45 12 take out the FCC Cable AL where lies in the panel pull out the FCC cable 13 take out the main board s screw 14 Remove the fame down towards Confidential Do Not Copy VA703b 4_VA7...

Page 49: ...e 1 Paste production film to protect the monitor screen Figure 1 2 Put the monitor in the PE bag and seal bag with type Figure 2 3 Put the cushions on the monitor Figure 4 tape Production film tape Co...

Page 50: ...e EPE bag and then place the base on the cushions as figure 5 Place the monitor into the carton and then put all accessories into carton At last close the carton Use s Guide Base signal cord Power cor...

Page 51: ...ation 48 6 Troubleshooting Flow Chart Main Procedure Start Connect all of devices to the LCD monitor Power On Is indicator LED light A Power Circuit Troubleshooting Yes No 1 Confidential Do Not Copy V...

Page 52: ...ormance O K Function Adjustment O K Audio Function O K No Trouble Found End B Backlight Troubleshooting C Performance Troubleshooting D Function Troubleshooting E Audio Troubleshooting Yes Yes Yes No...

Page 53: ...ViewSonic Corporation 50 A Power Circuit Troubleshooting Start Change AC DC Adapter Retry Power On Change Main Board Retry No Trouble Found End End End Confidential Do Not Copy VA703b 4_VA703m 4...

Page 54: ...Sonic Corporation 51 B Backlight Troubleshooting Start Change Inverter and Retry No Trouble Found End End End End Backlight Change Module Change Main Board Retry Confidential Do Not Copy VA703b 4_VA70...

Page 55: ...Uniformity Is screen white NO NO Screen is scrolling LCD Line Defect Change Inverter Board Change LCD Module Change LCD Module Check Connector Change Main Board Change LCD Module NO Yes No Change Mai...

Page 56: ...bar Prss Reset Button from front panel control End Change Main Board Screen is smaller Make sure relution is set at default Reset O K Change Main Board No Trouble Found End No No Yes No Yes No Yes No...

Page 57: ...ic Corporation 54 D Function Troubleshooting Start Control Menu not Functioning Change Control Board and Retry Change Main Board No Trouble Found End No No Yes Yes Confidential Do Not Copy VA703b 4_VA...

Page 58: ...bleshooting Start Make sure sound output Audio cable is OK No Sound Change Speaker Change Speaker Change Main Board Sound is broken Volume Unadjustable No Trouble Found End No Yes Yes No Yes No Confid...

Page 59: ...M191A040002 3 Key Board B 00006502 XLM191A050001 4 Power Board Inverter Board B 00006503 XLM1700390010 5 Power Board Inverter Board Rev 1 Added on 09 28 06 B 00008053 XLM1700390015 SF 6 Front Panel C...

Page 60: ...I AA B 00006501 XLM191A040002 4 Key Board LM MR19I AAA B 00006502 XLM191A050001 6 Power Board Inverter Board B 00006503 XLM1700390010 7 Inverter Board Power Board Rev 1 Added on09 28 06 B 00008053 XLM...

Page 61: ...IL L100xW40xT0 07mm 1 39 N A V900505030007 AL FOIL L100xW30 T0 35mm Y78400004G 1 4 40 CB 00006504 W0926418AQ951 VGA CABLE 30AWG UL20276 L1800mm 15PIN BLACK 1 41 A 00006505 W402221509531 AC POWER CORD...

Page 62: ...OR RES CHIP 0 5 J 1 8W 0603 TAPPING SMD 7 96 N A R070331J10111 RES CHIP 330 5 J 1 10W 0603 TAPPING SMD 2 97 N A R070470J10111 RESISTOR RES CHIP 47 5 J 1 10W 0603 TAPPING SMD 3 98 N A R070750J10111 RES...

Page 63: ...0 0 01 37 N A V5004AP150201 ADHESIVE TAPE L25000 W15 T0 25mm 25m ROLL YW0910300002 0 012 38 N A V5005A5080101 ADHESIVE TAPE L50000 W8 T0 1mm 0 006 39 N A V501275024801 ADHESIVE TAPE L75m W48 T 0 045mm...

Page 64: ...B 70 200mA0603 1608 TAPING FORDGLORY LEAD FREE SMD 3 113 N A L013121302A11 CHIP BEAD Ferrite ChipBeads high current WB201209B601QLT02 120 3000mA 1206 TAPING Walsin SMD 5 114 N A Q441240047151 CRYSTAL...

Page 65: ...Y INJECTION LM MR17I AA REV 2 1 35 N A V300800000001 GLUE 50g BOTTLE 60 C 200 C 0 01 36 N A V5004AP150201 ADHESIVE TAPE L25000 W15 T0 25mm 25m ROLL YW0910300002 0 012 37 N A V5005A5080101 ADHESIVE TAP...

Page 66: ...eneralcircuit DDY160808U121MB70 200mA 0603 1608 TAPING FORD GLORY LEAD FREE SMD 3 94 N A L013121302A11 CHIP BEAD Ferrite Chip Beads high current WB201209B601QLT02 120 3000mA 1206 Walsin SMD 5 95 N A Q...

Page 67: ...6 38 N A V5011A5150101 ADHESIVE TAPE L50000 W15mm T0 1mm 0 003 39 N A V501275024801 ADHESIVE TAPE L75m W48 T 0 045mm FOR VIEWSONIC 0 006 40 N A V900505020003 AL FOIL L50 W30 T0 10mm 41 N A V9005050300...

Page 68: ...DIP 2 96 N A R070000J10311 RES CHIP 0 5 J 1 10W 0805 TAPPING SMD Y180320000J0 97 N A R070000J20111 05 RESISTOR RES CHIP 0 5 J 1 8W 0603 TAPPING SMD 7 98 N A R070331J10111 RES CHIP 330 5 J 1 10W 0603...

Page 69: ...21809531 AC POWER CORD EUR RVV 300 500V 3G S0 75mm2 L180cmBLACK YISHENG 1 44 CB 00008033 W47A103015003 FFC WIRE CY050408001 P 1 0mm 30PIN L150mm LOCK HUNG FU HUNG FU 1 45 N A W47A103015004 FFC WIRE CY...

Page 70: ...ES CHIP 47 5 J 1 10W 0603 TAPPING SMD 3 100 N A R070750J10111 RESISTOR RES CHIP 75 5 J 1 10W 0603 TAPPING SMD 3 101 N A R071000J10111 RES CHIP 100 5 J 1 10W 0603 TAPPING SMD 1 102 N A R071001J20111 05...

Page 71: ...05020003 AL FOIL L50 W30 T0 10mm AL L100xW40xT0 07mm 43 N A V900505030001 AL FOIL L100xW40xT0 07mm 1 44 N A V900505030007 AL FOILL100xW30 T0 35mm Y78400004G 1 3 45 CB 00005758 W0026918A0142 AUDIO CABI...

Page 72: ...1 10W0805 TAPPING SMD Y180320000J0 105 N A R070000J20111 05 RESISTOR RES CHIP 0 5 J 1 8W 0603 TAPPING SMD 7 106 N A R070159J50511 RES CHIP 1 5 5 J 1 4W1206 TAPING LEAD FREE SMD 107 N A R070331J10111 R...

Page 73: ...VA703b 4 Exploded diagram 8 Exploded Diagram and Exploded Parts List Model Title Date Rev ViewSonic Corporation ViewSonic Corporation 70 Confidential Do Not Copy VA703b 4_VA703m 4...

Page 74: ...M 17 19 LCD MONITOR FOR VIEWSONIC 1 12 N A M105244006401 SCREW BINDING 4 0 L6mm WITH NICKEL AD WASHER 1 13 N A P369579010001 SCREW BINDING 4 0 L6mm WITH NICKEL AD WASHER 1 14 N A M711200LM0130 A SHIEL...

Page 75: ...LCD MONITOR FOR VIEWSONIC 1 12 N A M105244006401 Maching Screw STD B Head 4 0 L6mm 1 13 N A P369579010001 MYLAR L95 W79 5 T0 1mm WHITH ADHESIVE 1 14 N A M711200LM0130 A Sheild SPTE LM MR17I AAA REV 1...

Page 76: ...VA703m 4 Exploded diagram Model Title Date Rev ViewSonic Corporation ViewSonic Corporation 72 Confidential Do Not Copy VA703b 4_VA703m 4...

Page 77: ...20 REV 0 1 15 N A M711200LM0130 A SHIELD SPTE T 0 3mm LM MR17I AAA REV 1 16 N A P369579010001 MYLAR L95 W79 5 T0 1mm WHITH ADHESIVE 1 17 N A P392411A00001 SPEAKER SPONGE L24 5 W11 T10mm L R VA703 4 1...

Page 78: ...6585 F20143171A002 POLYETHYLENE R EPS LM MR17I AAA L133 W139 H460mm 1 5 A 00006505 W402221509531 AC POWER CORD US Spec 22AWG L150cm BLACK 1 6 CB 00006504 W0926418AQ951 VGA CABLE 30AWG UL20276 L1800mm...

Page 79: ...002 POLYETHYLENE R EPS LM MR17I AAA L133 W139 H460mm 1 5 A 00006505 W402221509531 AC POWER CORD US Spec 22AWG L150cm BLACK 1 6 CB 00005758 W0026918A0142 AUDIO CABIE 26AWG UL2547 L 1800mm 6C BLACK 1 7...

Page 80: ...RTD2523B RTD2023L 3 3V Digital DVI SCL SDA Down Auto Right XIN XOUT 24MHZ PHD PCLK PHS PVS RE 7 0 RO 7 0 GE 7 0 GO 7 0 BE 7 0 BO 7 0 TX0 TX0 TX1 TX1 TX2 TX2 17panel DC POWER 5V supply to panel 3 3V s...

Page 81: ...100uF_16V C1 100uF_16V JP1 HEADER 13 SM 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 R121 220 C6 100uF_16V R123 220 R117 220 C11 100nF R118 220 C8 100nF R10 330 R127 1K R126 1K CN1 2 0_11pin 1 2 3 4 5 6...

Page 82: ...ENU DGND JP4 HEADER 13 SM 6 5 4 3 2 1 6 5 4 3 2 1 LED1 A1 C A2 JP3 HEADER 13 SM 6 5 4 3 2 1 6 5 4 3 2 1 SW3 1 2 3 4 SW6 1 2 3 4 SW5 1 2 3 4 SW4 1 2 3 4 SW2 1 2 3 4 JP5 HEADER 13 SM 1 2 3 4 5 6 7 8 9 1...

Page 83: ...A5 47K FBA8 BED 6 RA8 NC 1R2 CA3 10uF_16V FBA2 FEB 1206 CA6 NC 180PF UA1 APA2065 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 ROUT SHUTDOWN RIN GND GND VOLUME LOUT LIN VDD LOUT BYPASS GND GND SE BTL ROUT VD...

Page 84: ...1 P1 2 P1 3 P1 4 P1 5 P1 6 P1 7 NC VSYNC NC P6 0 AD0 P6 1 AD1 P6 2 AD2 P6 3 AD3 P6 4 P6 5 P6 6 CLK0 P6 7 HCL1 RX P3 0 P3 2 INT0 P3 3 INT1 P3 4 T0 P3 5 T1 P7 6 CLKO P7 7 NC R152 6 8K C125 10pF R149 100...

Page 85: ...D PGND DDCSCL1 TCON4 DDCSDA1 TCON9 SCLK TCON3 SDIO 3 TCON0 SDIO 2 TCON11 SDIO 1 TCON7 SDIO 0 TCON13 PWM1 TCON0 COUT BJT_B BB3P BBLU7 BB3N BBLU6 BB2P BBLU5 BB2N BBLU4 BB1P BBLU3 BB1N BBLU2 BCLKP BGRN7...

Page 86: ...DGND DGND U1 VGA_CON15 1 2 3 4 5 6 7 8 9 10 12 13 14 15 11 R27 100 D2 BAV99 3 1 2 R18 100 D18 BAV99 3 1 2 D17 MLL5232B 5 6V D4 UDZ5 6B C12 47nF C105 100nF R28 75 D14 LL5232B 5 6V 5 D9 UDZ5 6B R134 10...

Page 87: ...ViewSonic Corporation 83 11 PCB Layout Diagrams Confidential Do Not Copy VA703b 4_VA703m 4...

Page 88: ...ViewSonic Corporation 84 Confidential Do Not Copy VA703b 4_VA703m 4...

Page 89: ...ViewSonic Corporation 85 Confidential Do Not Copy VA703b 4_VA703m 4...

Page 90: ...ViewSonic Corporation 86 Confidential Do Not Copy VA703b 4_VA703m 4...

Page 91: ...ViewSonic Corporation 87 Confidential Do Not Copy VA703b 4_VA703m 4...

Page 92: ...6 Troubleshooting Flow Chart 7 Recommended Spare Parts List 8 Exploded Diagram and Exploded Parts List 9 Block Diagrams 10 Schematic Diagrams 11 PCB Layout Diagrams B Are you satisfied with this Serv...

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