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1. PWI742CPVIAI POWER BOARD FOR AI 1 C202 65L0805104 22 0 1UF 10 25V X7R 080 1 C203 65L0805105 27 CHIP 1UF 25V Y5V 0805 1 C204 65L0805104 22 0 1UF 10 25V X7R 080 1 C205 65L0805104 22 0 1UF 10 25V X7R 080 1 C206 65L0805104 22 0 1UF 10 25V X7R 080 1 C208 65L0805331 32 CHIP 330PF 50V X7R 0805 1 C209 65L0805105 27 CHIP 1UF 25V Y5V 0805 1 C210 65L0805105 27 CHIP 1UF 25V Y5V 0805 1 C211 6510805105 27 CHIP 1UF 25V 5 0805 1 C212 65L0805105 27 CHIP 1UF 25V Y5V 0805 1 C219 65L0805105 27 CHIP 1UF 25V Y5V 0805 1 C220 65L0805105 27 CHIP 1UF 25V Y5V 0805 1 C221 65L0805474 27 CHIP 0 47UF 25V Y5V 1 C222 65L0805474 27 CHIP 0 47UF 25V Y5V 1 C907 65L0805104 32 CHIP 0 1UF 50V X7R 1 C908 65L0805104 32 CHIP 0 1UF 50V X7R 1 C909 65L0805104 32 CHIP 0 1UF 50V X7R 1 C910 65L0805102 32 CHIP 1000P 50VX7R 0805 1 C926 65L0603104 32 CHIP 0 1UF 50V X7R 1 C927 65L0603104 32 CHIP 0 1UF 50V X7R 1 D201 93L2004 2A SM240A DO 214AC 1 D202 93L2004 2A SM240A DO 214AC 1 D203 93L39S 3 BZT52 C11 1 D204 93L 39S 3 T BZT52 C11 1 F201 61L1206000 4 0 OHM 4A 1 4W 1 Q201 57L 760 5B PDTC144WK SOT346 1 Q202 57L 760 4B PDTA144WK SOT 346 1 Q203 57L 763 3 4411 SO 8 BY AOS SMT 1 Q204 57L763 3 AO4411 SO 8 BY AOS SMT 1 Q205 57L417 4 PMBS3904 PHILIPS SMT 04 1 Q206 57L417 4 PMBS3904 PHILIPS SMT 04 1 Q207 571417 6 PMBS3906 PHILIPS SMT 06 1 Q208 57L417 6 PMBS3906 PHILIPS SMT 06 1 R202 61L0603512 CHIP 5 1K OH
2. 100 1 16W 0 047uF 3 3V VGA_G_L105my yy 280 OH L106 40 1 46W SQG in CG TMDS_AVCC Q 1uF R186 75 1 16W R188 C151 400 1 16W 0 047uF T1 VGA G CG IC101 sr o oo 92529 SIN 2 88 682188 gy VGA RL108 99 55552222555 5555 5555 Sia OO 5555590099 9090 6 2222 55 28 lt lt lt lt lt lt lt lt lt lt 5555 6666 42 75 1 16W R191 C154 AVS R192 C155 470 1 16 0 047uF 100 1 16W 0 047uF SOG in 33 WSR GR B soG VDD RX2N Modify 082704 R193 CB 30 Modify 082704 NC ca 31 B TMDSSEND HSIN R194 AO 1 16W R195 100 1 16 AHS 35 9 mp DATA1 SHELLI VSIN R196 100 116 AVS CR 37 DATAT 3 3V TA 38 R TMDS GND 22 DATA2 o DATA2 4 SHLD uh D w C1568 C157 20 DATAO DATA ADC_VDD DATA4 22pF 12pF L110 600 OHM ADC VDD RXON DDC2 SCL DDC CLK ADC_VDD TMDS_GND DDC2_SDA lt DDC DATA ae A VSHNC T c159 gt c160 gt 0161 27 DATA1 C15 0 1uF 0 1uF ABE END TMDS VDD DATAT AIR 22uF 16V GND RXCN SEE BUS POWER DATA1 3 SHLD ADC_GND TMDS_GND Rid DATA3 28 DATA3 43 3V ADC_REFIO DVI POWER lt lt DE RTD2523 DATAO ba Per LIM Y 44 DPLL_VDD BG
3. ViewSonic Corporation 37 R130 61L0603103 CHIPR 10K OHM 5 1 10 1 R131 61L0603103 CHIPR 10K OHM 5 1 10 1 R132 61L0603103 CHIPR 10K OHM 5 1 10 1 R133 61L0603000 CHIPR 0OHM 5 1 10W 1 R134 61L0603000 CHIPR 0OHM 5 1 10W 1 R136 61L0603101 CHIPR 100 OHM 5 1 10 1 R137 61L0603101 CHIPR 100 OHM 5 1 10 1 R140 61L0603471 CHIPR 470 5 1 10W 1 R142 61L0603472 CHIPR 4 7K OHM 5 1 1 1 R143 61L0603472 CHIPR 4 7K OHM 5 1 1 1 R144 61L0603472 CHIPR 4 7K OHM 5 1 1 1 R145 61L0603472 CHIPR 4 7K OHM 5 1 1 1 R146 61L0603472 CHIPR 4 7K OHM 5 1 1 1 R147 61L0603472 CHIPR 4 7K OHM 5 1 1 1 R148 61L0603472 CHIPR 4 7K OHM 5 1 1 1 R149 61L0603472 CHIPR 4 7K OHM 5 1 1 1 R151 61L0603472 CHIPR 4 7K OHM 5 1 1 1 R152 61L0603472 CHIPR 4 7K OHM 5 1 1 1 R153 61L0603472 CHIPR 4 7K OHM 5 1 1 1 R154 61L0603472 CHIPR 4 7K OHM 5 1 1 1 R155 61L0603472 CHIPR 4 7K OHM 5 1 1 1 R156 61L0603472 CHIPR 4 7K OHM 5 1 1 1 R157 61L0603472 CHIPR 4 7K OHM 5 1 1 1 R158 61L0603101 CHIPR 100 OHM 5 1 10 1 R159 61L0603000 CHIPR 0OHM 5 1 10W 1 R160 61L0603101 CHIPR 100 OHM 5 1 10 1 R161 61L0603471 CHIPR 470 OHM 5 1 10W 1 R163 61L0603101 CHIPR 100 OHM 5 1 10 1 R164 61L0603000 CHIPR 0OHM 5 1 10W 1 R165 61L0603101 CHIPR 100 OHM 5 1 10 1 R16
4. Progres 0 mie Figure 1 26 ViewSonic Corporation NJE NSERVICE HANUAL 5 K715 inbond IspWrite D Chip Information Select Chip rT8E65 AP ROM Size 64K LD ROM Size 4K File Information Select Bank AVSCvsc 8131b CPT1 TEAO3 v015 hex txt Y Check Su DEP oka DBytes Select Bankl File Format tion Setting Disconnect Port selection AP Baud 5600 LD Baud Rate Statu Progres 0 Switch to LD by User Command User ASCII WE 3 Figure 2 4 If PC has more than two COM ports you must select the right COM port to make sure the normal communication b ISP Writer 1 Click ConNect on the 8051IspWriter exe interface then click Program All to Write ISP program or Program is gray which is unused In the time please check whether the signal cable is connected OK then check whether the Monitor had entered ISP mode and make it right 2 After the ISP written OK click button OK then click eXit LD to make the Monitor out of ISP writer mode to get into user Mode 3 Repeat the above steps for the next monitor c Attention Ensure supplying normal power to PC ISP Writer Board and monitor during ISP Writing 2 If ISP Write fail change the MCU 27 ViewSonic Corporation 6 Trouble Shooting Flow Chart 6 1 No Display On Screen M
5. 12V_To inverter Diode rectifier amp filter Transformer 5V To main k control Start circuit Royer type L C resonance circuit amp Boost circuit PWM control IC N Ballast capacitor Feedback control circuit 4 3 Description of Main Chips main function is power control OSD control frequency calculation RS232 communication and so on RTD2523 integrate ADC OSD SCALER TCON RSDS LVDS convert analog RGB into digital and room and shrink scaling output to LCD panel Analog RGB Panel Digital 25277 FIFO Color Timing Driver DVI Conversion Control TMDS HDCP ITU 656 HS amp Sync Control Build In Processor Register Scaling Up OSD Color Panel L Processing 24 576MH3 MCU AP1084 DC power convert used to 5v convert 3 3v RT9164 DC power convert used to 3 3v convert 2 5v 24C02 EEPROM is used to save DDC date which contains the basic parameter of facility supplier product name maximum H frequency support resolution and so on M24C16 EEPROM is used to save Auto config data white balance data the state of power key and power on counting data 17 ViewSonic Corporation BA9741F PWM control voltage range for working 3 6 35V Has such functions as short voltage protection Over voltage protection over current protection and etc The function of each pin is as follows PIN NAME FUNCTION PIN NAME FUNCTION 1 CT External
6. 9104 PMBS3906 amp amp lt amp d 4d x U104 LED ORANGE lt MENU KEY XXX P5ODAO SLNOTG ON AUTO_KEY P51 DA1 5 aaaaaaaa ENTER_KEY P5 2 DA2 RIGHT KEY P5 3 DA3 NC PI LEFT KEY P5 4 DAd POWER_KEY P5 5IDA5 DDC2 SCL 5 158001160 HSCL2 P5 6 VSYNC DDC2 SDA HSDA2 P5 7 SM CONNECT P3 2 INTO 512 P67 RTD_RESET P3 3 INT1 P6 6 CLKO R164 V 100 111601 Q105 8165 V 00 1 16W P2410 pes al IICSDA P3 5 T1 P6 4 PMBS3906 R166 A4TK 116W P7 6 CLKO P6 3 AD3 9 P77 P6 2 AD2 P6 1 AD1 DDC SDA See EE HDAUTXIPS1S 0 00 LED GREEN lt lt DDC SCL T NE HCLURXIP3 0 K Z Z TXD R179 NC DDC SCL DDC SDA ViewSonic Corporation C129 0 1uF 5132 5V NC D102 BAT54C GS08 U106 M24C02WMN6 DDC2_SCL DDC2_SDA BUS_POWER gt R180 5V D103 BAT54C GS08 C133 C134 NC NC M24C02WMN6 50 VCC R136 2 R137 100 100 1 16 1 16 RTD_SDIOO RTD_SCLK RTD_SCSB RTD_SDIO1 RTD_SDIO2 RTD_SDIO3 BACKLIGHT PANEL PW MCU VCC R214 NC gt gt LED_BLUE Monday August 30 2004 R212 10K 1 16W STDBY MA MCU_VCC N N EEPROM WP gt AT24C16N 10SC 2 7 Modify 082704 Title 10 4 Inverter Q203 514431 OR AO4411 F201 4A63V 25 R227 TE1 HVL 12V O O a202
7. 202 i 0 1uF 25 2201 DTA144WKA 2 201 RLZ11B DTC I44WK C204 R220 16W 25 5706 R232 2425 KA MAW 2 1 41 0 1uF 25 ON OFF 80AL15T 7 YS D205 R222 1 4146 15K 146W Q210 1 4148 1 16W D209 R234 C224 1uF 25V 620 16 D207 OPE R240 1 4148 51 16W 221 236 R201 0 47uF 25V 60 1 16w 12K DIM lt 9 gt F 30K 1 16 9 R2282 R229 B2305 231 N s 2 HVL e m RLZT1B 5 PT202 9 150uF 25V 1 16 25 5706 R233 z 80AL15T 7 YS D206 C203 15K 16 212 1N4148 1uF 25V z C206 D210 1N4148 0 1uF 25V 7 R235 1 16W D208 R241 1N4148 C225 51KY M16W R 37 OPEN 6223 5 amp 0 1 16W lt 0 47uF 25V 1uF 25V F AOC Top Victory Electronics Co Ltd gt is power GND 2 FOR 17 amp 15 4 LAMPS INVERTER Document Number 1 742 1 71511075 1 is signal GND Thursday November 20 2003 heet 2 of 2 E 51 ViewSonic Corporation HVL HVL C215 CN201 C216 1 lt 22P 3KV 22P 3KV 33L8020 4D AC TPS HVL TP6 HVL CN202 C218 1 4 22P 3KV 2 22P 3KV H 4 33L8020 4D AC 10 5 A D Power CON102 CONN 33L8009 12L H T901 1 9 R906 2KBPO6M AM 1 4w R904 C905 R903 AM 1 2W 1500P 2KV 100 2W C904 100uF 400V 07 D901 R907 R905 1M 1 AW AM 1 AW UFADOT 3 8 5
8. BL ON OFF Q103 PMBS3904 5 Adjust Procedures 5 1 ADJUSTMENT CONDITIONS AND PRECAUTIONS 1 Approximately 30 minutes should be allowed for warm up before proceeding 2 Adjustments should be undertaken only on those necessary elements since most of them have been carefully preset at the factory 3 ESD protection is needed before adjustment 5 2 MAIN ADJUSTMENTS NO FUNCTIONS DESIGNATION 1 White Balance Function Key 2 GEOMETRY Function Key 5 3 ALIGNMENT PROCEDURES Approximately 30 minutes should be allowed for warm up before proceeding White Balance adjustment 1 Adjust of White Balance 1 How to do the Chroma 7120 MEM Channel setting A Reference to chroma 7120 user guide B Use SC key and NEXT key to modify xyY value and use ID key to modify the TEXT description Following is the procedure to do white balance adjust 2 Setting the color temp You want A MEM CHANNEL9 9300 color 9300 color temp parameter is Wx 0 283 40 03 Wy 0 298 0 03 20 ViewSonic Corporation Y 250 20 cd m B MEM CHANNEL 0 6500 color 6500 color temp parameter is Wx 0 313 0 03 Wy 0 329 30 03 Y 250 20 cd m C MEM CHANNEL 11 5400 color 5400 color temp parameter is Wx 0 335 0 03 Wy 0 350 30 03 Y 250 20 cd m 3 Into factory mode of VX715 A First Power off then press Switch 2 button along with press Power button will activate the factory mode and then MCU will do AUTO LEVEL aut
9. 1 R203 61L0603105 CHIPR 1M OHM 5 1 10W 1 R205 61L0603103 CHIPR 10K OHM 5 1 10 1 R206 61L0603101 CHIPR 100 OHM 5 1 10 1 R207 61L0603101 CHIPR 100 OHM 5 1 10 1 R209 61L0603101 CHIPR 100 OHM 5 1 10 1 R210 61L0603101 CHIPR 100 OHM 5 1 10 1 R211 61L0603103 CHIPR 10K OHM 5 1 10 1 R212 61L0603103 CHIPR 10K OHM 5 1 10 1 R217 61L0603103 CHIPR 10K OHM 5 1 10 1 R218 61L0603103 CHIPR 10K OHM 5 1 10 1 R220 61L0603472 CHIPR 4 7K OHM 5 1 1 1 R221 61L0603103 CHIPR 10K OHM 5 1 10 1 R222 61L0603103 CHIPR 10K OHM 5 1 10 1 U101 56L 563 21 AP1084K33 1 U102 56L585 7 RT9164 25CL 1 U104 87L 202 44 PLCC SMT CONN PD41C 441 1 U105 56L1133 24 AT24C16AN 10SI 2 7 1 U106 56L113334A 24LC02BT SN SOIC 8PIN 1 U107 56L113334A 24LC02BT SN SOIC 8PIN 1 U108 57L763 1 A03401 SOT23 BY AOS AI 1 ZD101 93L 6436ST ESDA5V3L 1 ZD103 93L 39146 LL5232B SMT 1 ZD104 93L 39146 LL5232B SMT 1 ZD105 93L 39146 LL5232B SMT 1 ZD106 93L 39146 LL5232B SMT 1 ZD107 93L 39146 LL5232B SMT 1 ZD108 93L 39146 LL5232B SMT 1 ZD109 93L 39146 LL5232B SMT 1 ZD110 93L 39146 LL5232B SMT 1 AIK780KC9SMT KEY BOARD 1 39 ViewSonic Corporation CN101 95L8014 16 27 KEY BOARD WIRE 390MM 1 SWI101 771 600 1CJ TACT SWITCH 1 SW102 771 600 1CJ TACT SWITCH 1 SW103 771 600 1 SWITCH 1 SW104 77L 600 1CJ T
10. 32 CHIP 0 047UF 50V X7R 1 C143 65L0603104 32 CHIP 0 1UF 50V X7R 1 C144 65L0603104 32 CHIP 0 1UF 50V X7R 1 C145 65L0603473 32 CHIP 0 047UF 50V X7R 1 C148 65L0603104 32 CHIP 0 1UF 50V X7R 1 C149 65L0603104 32 CHIP 0 1UF 50V X7R 1 C150 65L0603104 32 CHIP 0 1UF 50V X7R 1 C151 65L0603473 32 CHIP 0 047UF 50V X7R 1 C152 65L0603473 32 CHIP 0 047UF 50V X7R 1 C154 65L0603473 32 CHIP 0 047UF 50V X7R 1 C155 65L0603473 32 CHIP 0 047UF 50V X7R 1 C156 65L0603220 31 CHIP 22PF 50V NPO 1 C157 65L0603120 31 CHIP 12pF 50V NPO 1 C159 65L0603104 32 CHIP 0 1UF 50V X7R 1 C160 65L0603104 32 CHIP 0 1UF 50V X7R 1 C161 65L0603104 32 CHIP 0 1UF 50V X7R 1 C162 65L0603104 32 CHIP 0 1UF 50V X7R 1 C164 65L0603104 32 CHIP 0 1UF 50V X7R 1 C165 65L0603104 32 CHIP 0 1UF 50V X7R 1 C166 65L0603220 31 CHIP 22PF 50V NPO 1 C167 65L0603220 31 CHIP 22PF 50V NPO 1 C168 65L0603104 32 CHIP 0 1UF 50V X7R 1 C169 65L0603104 32 CHIP 0 1UF 50V X7R 1 C170 65L0603104 32 CHIP 0 1UF 50V X7R 1 C171 65L0603104 32 CHIP 0 1UF 50V X7R 1 C172 65L0603104 32 CHIP 0 1UF 50V X7R 1 C176 65L0603104 32 CHIP 0 1UF 50V X7R 1 36 C177 65L0603105 17 1UF 16V Y5V 1 C180 65L0603104 32 CHIP 0 1UF 50V X7R 1 D102 93L 6442 P BAV70 SOT 23 1 D103 93L 60505 54 SOT23 1 D104 93L 6433 BAV99 1 D105 93L 6433 BAV99 1 D110 93L 6433 BAV99 1 D115 93L1004 3 SS14 1 D116
11. 93L1020 1 GSID 1 IC101 56L 562 75 RTD2523 QFP 128 1 L101 71L 59C300 30 OHM BEAD 1 L102 61L0603000 CHIPR 0OHM 5 1 10W 1 L103 71L 56Z601 CHIP BEAD 600 OHM 0805 1 L104 71L 56Z601 CHIP BEAD 600 OHM 0805 1 L105 71L 59C300 30 OHM BEAD 1 L106 61L0603000 CHIPR 0OHM 5 1 10W 1 L107 71L 56Z601 CHIP BEAD 600 OHM 0805 1 L108 71L 59C300 30 OHM BEAD 1 L109 61L0603000 CHIPR 0OHM 5 1 10W 1 L110 71L 567601 CHIP BEAD 600 OHM 0805 1 1111 71L 56Z601 CHIP BEAD 600 OHM 0805 1 L112 61L1206000 CHIPR 0 OHM 5 1 4W 1 L115 71L 56Z601 CHIP BEAD 600 OHM 0805 1 0101 57L417 4 PMBS3904 PHILIPS SMT 04 1 Q103 57L417 4 PMBS3904 PHILIPS SMT 04 1 Q104 57L417 6 PMBS3906 PHILIPS SMT 06 1 Q105 57L417 6 PMBS3906 PHILIPS SMT 06 1 Q107 57L417 4 PMBS3904 PHILIPS SMT 04 1 R101 61L0603472 CHIPR 4 7K OHM 5 1 1 1 R103 61L0603000 CHIPR 0OHM 5 1 10W 1 R104 61L0603000 CHIPR 0OHM 5 1 10W 1 R106 61L0603101 CHIPR 100 OHM 5 1 10 1 R107 61L0603101 CHIPR 100 OHM 5 1 10 1 R109 61L0603101 CHIPR 100 OHM 5 1 10 1 R110 61L0603101 CHIPR 100 OHM 5 1 10 1 R111 61L0603101 CHIPR 100 OHM 5 1 10 1 R112 61L0603102 CHIPR 1K OHM 5 1 10W 1 R113 61L0603000 CHIPR 0OHM 5 1 10W 1 R115 61L0603103 CHIPR 10K OHM 5 1 10 1 R119 61L0603102 CHIPR 1K OHM 5 1 10W 1 R121 61L0603221 CHIPR 220 OHM 5 1 10W 1 R122 61L0603472 CHIPR 4 7K OHM 5 1 1 1 R123 61L0603103 CHIPR 10K OHM 5 1 10 1 R125 61L0603472 CHIPR 4 7K OHM 5 1 1 1 R126 61L0603472 CHIPR 4 7K OHM 5 1 1 1
12. D902 R908 73L 174 26 T C907 PS102R 5 1 4W 10 0 1uF C903 0 47uF 250V 901 566841 Q903 25 2996 R914 24K 1 4W C912 0 0047uF 250V FB901 BEAD Nu R916 10K 1 4W R901 R902 R913 AM 1 4W 1M 1 4W 10K 1 AW R917 0 39 2W 0 001uF NZ Z NR901 NTCR M T p R909 1 4W N D903 F901 1N4148 FUSE ZD901 R910 C901 C902 MTEJ20B 47K 1 4W 0 001uF 250V 0 001uF 250V R912 100 1 4w IC903 2PC945P C909 R911 C913 0 1uF 4 7K 1 4W 0 0047uF 250V N C R920 C920 47 1 2W 0 001uF 500V D910 FMB26L10A 150V 1 b L903 co gt 2 C922 1000uF 16V C924 C926 R921 470uF 16V 0 1uF 47 1 2N C921 ZD904 SML4736 0 001uF 500V 1 b D911 L904 gt cd FMB26L10A 60V 1000uF 16V C925 C927 470uF 16V R929 100 1 4W R928 1K PC123FY82 4P 1 4W Q902 R922 R923 33K 1 4W 3 6K 1 4W R926 1 4W C928 R924 0 01uF 2 4K 1 4W 0 1uF CN901 AOC Top Victory Electronics Co Ltd itle 1 POWER OUTPUT 12V amp 5 V Size Document Number B PWPCI742CPV1 715L1075 1 V Date Thursday November 20 2003 Sheet 2 52 ViewSonic Corporation 11 PCB Layout Diagrams 11 1 MAIN BOARD PCB L104 B uv 8871311373 F 157 A a a poems Cn 8855 Z mJ um Um mu b 6 C153 RIZOS 79959259 i 81820104 1589 5 2009 R179 C131 D102 im m
13. HN HN HN BN m m M mE EN EN EN LE CN CH Ir 90107 0107 ViewSonic Corporation 11 2 KEY BOARD PCB 1251 10 db e SW102 SW104 SW101 ViewSonic Corporation 11 3 POWER PCB SSN NA SMS 1 m V g4v0 O 3 iuc 8 R232 CON201 xps ed J206 274442 m e 6 E VT lt O n amp gt R224 ANNA OW a J201 C213 s B dk ca E E 0214 8 B Um 121 0 Ss R230 R228 C223 L Sj lt Z gt gt e 2 2 a N 56 To e 64 8 C207 C218 D210 C902 On L N 0915 w gt E R233 5 2 CAUTION FOR CONTINUED T POLAN ONLY WITH SAME TYPE AND RATING OF FUSE CN901 ViewSonic Corporation
14. Tune sharpens focus by aligning the illuminated text and or graphic characters Sharpness adjusts the clarity and focus of the screen image ViewSonic Corporation 2 Setup Menu displays the menu shown below Setup Menu Language Select Resolution Notice OSD Position 7 OSD Time Out OSD Background 1 Exit The Setup Menu controls are explained below Language allows you to choose the language used is the menus and control screens Resolution Notice displays the Resolution Notice menu advises the optimal resolution to use OSD Position allows you to move the on screen display menus and control screens OSD Timeout sets the length of time an on screen display screen is displayed For example with a 15 second setting if a control is not pushed within 15 seconds the display screen disappears OSD Background allows you to turn the On Screen Display background on or off Memory Recall returns adjustments to the original factory settings if the display is 2 operating in a factory Preset Timing Mode listed in this user guide Exception This control does not affect changes mode with the User Color control Language and Power Lock setting 12 ViewSonic Corporation Short Cut Key Function key 5 keys 1 YI A 2 E 2 Input toggle Analog or Digital or Auto Image Adjust put togg g to immediately activate Contrast menu It should be change to Brightness OSD by push button 2 V A
15. recall both of Contrast and Brightness to default 1 2 toggle 720x400 and 640x400 mode when input 720x400 or 640x400 mode 1 V A White Balance Not shown on user s guide _ OSD Lock 2 87 Factory Mode Remark All the short cuts function are only available while OSD off ViewSonic Corporation 4 Function Module Description 4 1 LCD MONITOR DESCRIPTION The LCD MONITOR will contain a Main Board a Power Board and Key Board which house the flat panel control logic brightness control logic and DDC The Power Board will provide AC to DC Inverter voltage to drive the backlight of panel and the Main Board chips each voltage Monitor Block Diagram CCFL Drive Flat Panel and CCFL backlight Power Board Main Board RS232 Connector Include adapter i t For white balance di ee ree adjustment in factory mode Video signal DDC Key Board AC IN 100V 240V HOST Computer ViewSonic Corporation 4 2 POWER BLOCK FUNCTION DESCRIPTION Inverter Block Function Parallet resonant Buck Connector inwerter Driver Dimming control Circuit PWM 01 META Farallet resonant Vin inverter CCFL Dimming control PIN ViewSonic Corporation Power Block Function AC INPUT Starting resistance Switching circuit PWM control IC amp MOSFET ON OFF control s DIM control ViewSonic Corporation
16. 04 1uF 16V 0805 MCU_VCC R121 220 1 16W BL ON OFF R122 4 K 1 6W PANEL_PW gt Q103 PMBS3904 X BACKLIGHT C120 0 1uF ViewSonic Corporation R217 10K 10K R220 4 7K CN102 R10 NC R213 EBY MENU KEY lt lt 5 R103 0 116w ATTEN aaa LED_GREEN gt R106 100 1 16W ENTER KEY R109 100 1716W 110 200 AMES LEFT KEY CLER MY R111 100 C10 179 C10 C10 0 001uf 0 001uf 0 00 uF HuF 25V VCC 5V O C109 100uF 16V added 082704 VOL ADJ L113 NC modify 05102004 12V 5 C115 22uF 16V 0 1uF R219 1 16W NC 1 16W U108 AO3401 1 16W Q107 PMBS3904 Size Document Number p O l A R T1 Date Monday August 30 2004 Sheet 1 of 3 48 10 2 Scalar R182 C135 100 1 16W 0 047uF VGA BL104 1102 0 1 46W cB 2 5V R183 x 1103 600 OHM 75 116W R184 C142 100 1 16W 0 047uF 3 3V R3DVCC 0 18 C14 C14 C137 VGA B CB O 1uF O 1uF O 1uF O 1uF 22uF 16V 1104 600 1 Modify 0828184 0145 143 144
17. 2 CHIP 4 7KOHM 5 1 4W 1 R912 61L1206101 CHIP 100 OHM 5 1 4W 1 R913 61L1206103 CHIP 10KOHM 5 1 4W 1 R914 61L1206243 CHIP 24K OHM 5 1 4W 1 R928 61L0603102 CHIPR 1K OHM 5 1 10W 1 U201 56L 622 1 BA9741F SMT 1 ZD901 93L39823 T PLZ22B 1 ZD904 93L39S19 T PTZ7 5B 1 715L1075 2 V PCB 1 C201 67L215C1514HT LOW ESR 150UF 25V 8 7 1 C207 67L 305479 7T 4 7UF 20 50V 105 1 C223 67L215C1514HT LOW ESR 150UF 25V 8 7 1 C904 6L 31502 1 5MM RIVET 2 C905 65L 2 152 176921 1 5NF 2KV Y5P 10 1 C906 67L 305220 7T 22UF 20 50V 1 C920 65L517K102 5T 1000PF 10 Y5P 500V 1 C921 65L517K102 5T 1000PF 10 Y5P 500V 1 C924 67L215B4713HT 470UF 16V LTRA71MICFI1V 1 C925 67L215B4713HT 470UF 16V LTRA71MICFIIV 1 C929 64L700J1040AT 0 1UF 50V PEN 1 CN901 6L 31500 EYELET 2 D205 93L 64 1152T 1N4148 1 D206 93L 64 1152 1N4148 1 D207 93L 64 1152 1N4148 1 42 D208 93L 64 1152T 1 4148 1 209 93L 64 1152T 1N4148 1 D210 93L 64 1152 1N4148 1 D901 93L 6026W52T FR107 1 D902 93L 6038 52 PS102R 1 D903 93L 641152 1N4148 1 F901 84G 56 1 FUSE 2A 250V WICKMANN 1 FB901 71L 5529 FERRITE BEAD 1 IC903 56L15810 T AZA31AZ A TO 92 1 L902 6L 31502 1 5MM RIVET 4 PT201 6L 31502 1 5MM RIVET 2 PT202 6L 31502 1 5MM RIVET 2 Q901 57L420PP 2PA733P 1 Q902 57L 419 PP T 2PC945P 1 R201 61L 60230352T 30KOHM 5 1 6W 1 R224 61L 17210252T IK O
18. 2N H4 SAMA DATAO DATAO APLL_VDD 25 Sk AMG DATA0 5 SHLD C164 C165 BG1P 776 4 DATA5 ep BG1N DATA5 C16 0 1uF 0 1uF KREM SEURHABV DPLL_GND BR3P 7 CLK APLL_GND BR3N CLK EN BR2P 9 A RED BR2N A GREEN DDC SCL DDCSCL 15 5 DGND 820 EJ 81 A BLUE 10 CONNECT CONNECT 2 R203 Y102 BR1P 782 A HSYNC VSIN VSIN 14 TXD 2 R 1M 1 16WK 24 576 2 Pin Names Visible BRIN A GND VSIN lt DDC VDD 85 43 VGASV L CT xo AB3P Fes SHEL12 VGA B 22pF TESTA 8 DDC SDA DDCSDA 12 F PLL_TEST2 7 87 PLL_TEST2 AB2P 78g SHIELD connect to Chassis RxD lt C RXD RXDPI1 A AB2N Then Chassis connect to 114 5 89 DGND i vo s AB1P 115 90 Gas VA ARE AB1N 4 z v2 SERERE 91 20060220 ACLKP DB15 118 2000229 92 119 V4 tanasg ACLKN V5 Q0 0 ZA lt e 122 29 93 v6 GO oo AG3P 123 F IZEZEJE ann 94 124 V7 u 0222202 LI A AG3N 2 499 9 0666606 99 22222 00000 00000 TMDS AVCC FFFFFEF aa aao G a a a s gt CN106 n e sm x Wi iil LO o jo st ud 0 l RTD SCLK RXEO 20101 m ea SDO SDI RXE1 R204 5 RTD SCSB RXE2 NC E RTD RESET RXEC C168 C169 C170 C171 C17 RXE3 0 1uF O 1uF O 1uF 0 1uF RXOO RXO1
19. 5 11655 MYLAR 1 52L6025 11675 MYLAR 1 70L1700709 3B CD MANUAL 1 851 662 1 SHIELD 1 89L1738LAA 5 D SUB 1 T782KCWHTDVWN 89L402A18N YH POWER CORD 1 T782KCWHKDVWN 89L404A18N YH POWER CORD 1 T782KCWHBDV WN 89L414A18N YH POWER CORD 1 T782KCWHDDVWN 95L8014 12 12 POWER LINE 16P 12P 1 95L8018 30 33 HARNESS 110MM 24P 30P 1 MIL 140 6120 SCREW M4X6 8 ViewSonic Corporation 34 MIL 330 4128 SCREW M3X4 2 MIL 330 6128 SCREW 4 111030 6128 SCREW 2 MIL1140 6120 SCREW 1 MIL1730 6128 SCREW 3 6 8 MIL2130 447 SCREW 4 705L782K B34 59 BEZEL ASS Y 1 750LLC70A2Q CPT 17 073 PANEL 1 AIC780KKWVW MAIN BOARD 1 40L 457624 1B CPU LABEL 1 40L 45762412B CBPC LABEL 1 3314728 LENS 1 34L1320 KS B BEZEL 1 34L1321AKD B MIDDLE BEZEL 1 34L1322 KS B BUCKET 1 34L1323KD B STAND 1 3411325 B STAND F COVER 1 37L 497500 HINGE 1 MIL1740 10128 SCREW 4 QIL330 7120 SCREW 8 Q1L1030 12128 SCREW 4 C109 67L305V221 3 CAP EC 220U 16V 1 C110 67L309V220 3 22UF 20 16V 1 C113 67L305V101 3 1000UF 2 16V 1 C115 67L309V220 3 22UF 20 16V 1 C137 67L305V220 3 22UF 16V 1 C147 67L305V220 3 22UF 16V 1 C158 67L305V220 3 22UF 16V 1 C163 67L305V220 3 22UF 16V 1 CN102 33L8027 16 WAFER 16PIN 2 0mm DIP 1 CN103 33L8027 12 WAFER 2 6P 2 0MM R A 1 CN104 88L 35424F HS DVID CONN 24P 1 CN105 88L 35315F HS D S
20. 6 61L0603472 CHIPR 4 7K OHM 5 1 1 1 R167 61L0603472 CHIPR 4 7K OHM 5 1 1 1 R168 61L0603101 CHIPR 100 OHM 5 1 10 1 R169 61L0603101 CHIPR 100 OHM 5 1 10 1 R172 61L0603220 CHIPR 22 OHM 5 1 10W 1 R173 61L0603220 CHIPR 22 OHM 5 1 10W 1 R174 61L0603000 CHIPR 5 1 10W 1 R175 61L0603220 CHIPR 22 OHM 5 1 10W 1 R176 61L0603682 CHIP 6 8K OHM 1 10W 1 R178 61L0603472 CHIPR 4 7K OHM 5 1 1 1 R182 61L0603101 CHIPR 100 OHM 5 1 10 1 R183 61L0603750 CHIPR 75 OHM 5 1 10W 1 R184 61L0603101 CHIPR 100 OHM 5 1 10 1 R185 61L0603101 CHIPR 100 OHM 5 1 10 1 R186 61L0603750 CHIPR 75 OHM 5 1 10W 1 ViewSonic Corporation 38 ViewSonic Corporation R187 61L0603102 CHIPR 1K OHM 5 1 10W 1 R188 61L0603101 CHIPR 100 OHM 5 1 10 1 R189 61L0603101 CHIPR 100 OHM 5 1 10 1 R190 61L0603750 CHIPR 75 OHM 5 1 10W 1 R191 61L0603471 CHIPR 470 OHM 5 1 10W 1 R192 61L0603101 CHIPR 100 OHM 5 1 10 1 R194 73L 60186 BEAD 1 R195 61L0603101 CHIPR 100 OHM 5 1 10 1 R196 61L0603101 CHIPR 100 OHM 5 1 10 1 R197 61L0603202 CHIPR 2K OHM 5 1 10W 1 R198 61L0603202 CHIPR 2K OHM 5 1 10W 1 R199 61L0603202 CHIPR 2K OHM 5 1 10W 1 R200 61L0603332 CHIP 3 3K OHM 1 10W 1 R201 61L0603103 CHIPR 10K OHM 5 1 10 1 R202 61L0603103 CHIPR 10K OHM 5 1 10
21. 9 Block Diagram 10 Schematic Diagram 11 PCB Layout Diagram ViewSonic Corporation 14 20 28 34 45 47 48 S3 1 Precautions and Safety Notices 1 1 SAFETY PRECAUTIONS This monitor is manufactured and tested on a ground principle that a user s safety comes first However improper use or installation may cause damage to the monitor as well as the user Carefully go over the following WARNINGS before installing and keep this guide handy WARNINGS This monitor should be operated only at the correct power sources indicated on the label on the rear end of the monitor If you re unsure of the power supply in your residence consult you local dealer or power company Useonly the special power adapter that comes with this monitor for power input Do not try to repair the monitor yourself as it contains no user serviceable parts This monitor should only be repaired by a qualified technician Do not remove the monitor cabinet There is a high voltage part inside that may cause electric shock to human bodies even when the power cord is unplugged Stop using the monitor if the cabinet is damaged Have it checked by a service technician Put your monitor only in a clean dry environment If it gets wet unplug the power cable immediately and consult your service technician Always unplug the monitor before cleaning it Clean the cabinet with a clean dry cloth Apply non ammonia based cleaner onto t
22. A STP9NK60ZFP 1 95L 900567 HARNESS 1 96L 29 6 SHRINK TUBE UL CSA 1 CN901 87L 501 12 CJ AC SOCKET 1 516015 1 RUBBER FOR RESA HOLE 4 5L6020 1 EVA WASHER 2 518080 1 SCREW WASHER 4 11L165 1 CABLE MANAGE MENT 2 12L 394600 FOOT FORON 6 15L8019 1 LOCK METAL 1 20L013 1 BASE BRACKET 1 23L3178709 3A VSC17 LCD FRONT LEFT CO 1 23L3178709 4A VSC17 LCD FRONT LOGO 1 3314727 L KEY PAD 1 44 8 Exploded Diagram and Spare Parts List ViewSonic Corporation VX715 Exploded Parts list 34L1320 KS B BEZEL 34L1321 AKD B MIDDLE BEZEL 33L4728 LENS 3314727 FUNCTION BUTTON 17 CPT PANEL 15L8012 1 MAIN FRAME 52L6025 11655 MYLAR CBPC780KCWVW MAIN BOARD PWPCI742CPVI POWER BOARD 851 662 1 SHIELDING COVER 34L1322 1 REAR COVER 34L1323 KD B STAND 20L013 1 DIECASTING 34L1326 KR B STAND R COVER 37L497 500 HINGE 34L1325 KR B STAND F COVER 11L165 1 CABLE MANAGE MENT 34L1322 KS B BUCKET R COVER 46 ViewSonic Corporation 9 Block Diagram LCD Interface Scalar RTD 2523 MCU Include ADC OSD etc Crystal 24 576MHz RGB DDC2 SCL OSD Control Interface RGB EEPROM DDCA SDA ove Bo Keyboard 24C16 DVI D SUB Connector Connector EEPROM EEPROM 24C02 24C02 ViewSonic Corporation 10 Schematic Diagrams 10 1 Power 12V 5V 2 STDBY VOL ADJ MUTE D115 SS14 5V R112 R115 1K 1 16W 10K 1 16W R101 4 7K 1 16W lt BRIGHTNESS 1017 C114 PMBS39
23. ACT SWITCH 1 SW105 771 600 1CJ TACT SWITCH 1 715L1251 1D PCB 1 DP101 SIL 14 5GU LED 1 PW1742CPV1SMT POWER BOARD FOR SMT 1 40L 45762420A ID LABEL 1 705L 560 57 DL D910 D911 ASS Y 1 705L 560 61 05 R917 ASS Y 1 705L 560 61 06 R903 ASS Y 1 705L 780 57 01 Q903 ASS Y 1 705L 780 87 04 CN901 ASS Y 1 C213 63L210J1842A2 PMS 0 18UF 250V 1 C214 63L210J1842A2 PMS 0 18UF 250V 1 C215 65L 3J2206ET 22PF 5 3KV TDK 1 C216 65L 3J2206ET 22PF 5 3KV TDK 1 C217 65L 3J2206ET 22PF 5 3KV TDK 1 C218 65L 3J2206ET 22PF 5 3KV TDK 1 C901 65L305M1022EM 1000PF 20 250VAC 400 1 C902 65L305M1022EM 1000PF 20 250VAC 400 1 C904 67L215S10115K 100UF 450V 1 C922 67L215C102 3K 1000UF 16V 1 C923 67L215C102 3K 1000UF 16V 1 CONIO 2 33L801712A PIN HEADER 1 CON20 1 331802040 AC 4 DIP ACES 1 CON20 2 331802040 CONNAP DIP BY ACES 1 DB901 93L 50460 8 BRIDGE 2KBP06M2A600V 1 IC901 56L 379 32 SG6841D BY SYSTEM 1 1 902 561 139 PC123Y22 1 1201 731 253139 YL 1 1202 731 253139 YL 1 1902 73L 17426 T1 LINE LILTER 0 45mm 1 L903 73L 253 91LS CHOKE BY LI SHIN 1 L904 73L 253 91LS CHOKE BY LI SHIN 1 NR901 61L 58120 WT NTCR 120HM 20 2A SCK 1 1 PT201 80LLIST 7YS X FMR 1 PT202 8011 15 7YS X FMR 1 Q209 57L 761 6 28C5706 DIP SANYO 1 Q210 57L761 6 28C5706 DIP SANYO 1 Q211 57L 761 6 25 5706 DIP SANYO 1 Q212 57L 761 6 25 5706 DIP SANYO 1 T901 80LLITT 2 T X FMR 1 40
24. FRC bit Viewing Angle Horizontal 140 deg Vertical 130 deg Contrast Ratio 450 1 Brightness 300 cd m Typ Response Time Tr 6ms 10ms Typ Active Display Area 337 920 H x 270 336 V Temperature Operating 0 C to 40 C Storage 20 C to 60 C Power Input Voltage 90V 264V Consumption 35 Watts Max 32 Watts Typ 2 2 FACTORY SUPPORTING MODES Primary Preset VESA 1280 x1024 60Hz Timing Table 1 640 x 350 70Hz 31 5kHz 2 640 x 400 60Hz 31 5kHz 3 640 x 400 70Hz 31 5kHz 4 640 x 480 S0Hz 24 7kHz 5 640 x 480 60Hz 31 5kHz 6 640 x 480 67Hz 35 0kHz 7 640 x 480 72Hz 37 9kHz 8 640 x 480 75Hz 37 5kHz 9 640 x 480 85Hz 43 27kHz 10 720 x 400 70Hz 31 5kHz 11 800 x 600 56Hz 35 1kHz 12 800 x 600 60Hz 37 9kHz 13 800 x 600 75Hz 46 9kHz 14 800 x 600 72Hz 48 1kHz 15 800 x 600 85Hz 53 7kHz 16 832 x 624 75Hz 49 7kHz 17 1024 x 768 60Hz 48 4kHz 18 1024 x 768 a 70Hz 56 5kHz 19 1024 x 768 72Hz 58 1kHz 20 1024 x 768 75Hz 60 0kHz 21 1024 x 768 85Hz 68 67kHz ViewSonic Corporation 22 1152 x 864 75Hz 67 5kHz 23 1152 x 870 75Hz 68 7kHz 24 1280 x 1024 60Hz 63 4kHz 25 1280 x 1024 75Hz 79 9 7TkHz 26 1280x 720 60Hz 45kHz HDTV 2 3 D SUB CONNECTOR D SUB 15 PIN CONNECTOR Red video input Green video input Blue video input 4 Red video ground Green video ground 8 Blue vi
25. HM 5 1 4W 1 R225 61L 17210252T IK OHM 5 1 4W 1 R226 61L 17210252T 1K OHM 5 1 4W 1 R227 61L 17210252T IK OHM 5 1 4W 1 R228 61L 17210252T 1K OHM 5 1 4W 1 R229 61L 17210252T 1K OHM 5 1 4W 1 R230 61L 17210252T 1K OHM 5 1 4W 1 R231 61L 17210252T 1K OHM 5 1 4W 1 R232 61L 17210252T IK OHM 5 1 4W 1 R233 61L 17210252T IK OHM 5 1 4W 1 R240 61L 60251352T 51KOHM 5 1 6W 1 R241 61L 60251352T 51KOHM 5 1 6W 1 R904 61L214Y10552T 1M 1 4W 1 R905 61L214Y10552T 1M 1 4W 1 R906 61L214Y10552T 1M 1 4W 1 R907 61L214Y10552T 1M 1 4W 1 R915 61L 17210052T 100HM 5 1 4W 1 R916 61L 17210352T CFR 10KOHM 5 1 4W 1 R920 61L175L47052T 47OHM 5 1 2W 1 R921 61L175L47052T 47OHM 5 1 2W 1 R922 61L 20033352T 33KOHM 1 1 4W 1 R923 61L 20036252T 3 6KOHM 1 1 4W 1 R924 61L 20024252T 2 4 1 1 4W 1 R925 61L 17210252T 1K OHM 5 1 4W 1 R926 61L 17210252T IK OHM 5 1 4W 1 R929 61L 17210152T 100 OHM 5 1 4W 1 T901 6L 31502 1 5MM RIVET 4 ZD902 93L 39 5452T ZENER HZ12B2 1 ZD903 93L 39 7752T ZENER 75 1 1 ViewSonic Corporation 43 ViewSonic Corporation 90L6064 1 HEAT SINK 1 M1L1730 8128 SCREW M3x8 2 D910 931 60245 SP10150 1 D911 93L 60217 FMB 29L 1 96L 29 6 SHRINK TUBE UL CSA 1 R917 GIL 2139858 0 3900HM 594 2W 1 96L 29 6 SHRINK TUBE UL CSA 1 R903 61L152M10458F 100K OHM 5 2W 1 901 407 2 HEAT SINK 1 MIL1730 8128 SCREW M3x8 1 Q903 57L 724 4
26. M 1 10W 1 R203 61L0603512 CHIP 5 1K OHM 1 10W 1 R204 61L0603103 CHIPR 10K OHM 5 1 10 1 R205 61L0603473 CHIP 47K OHM 1 10W 1 R206 61L0603473 CHIP 47K OHM 1 10W 1 R208 61L0603472 CHIPR 4 7K OHM 5 1 1 1 R209 61L0603472 CHIPR 4 7K OHM 5 1 1 1 R210 61L0603153 CHIPR 15KOHM 5 1 10W 1 R211 61L0603153 CHIPR 15KOHM 5 1 10W 1 R212 61L0603392 CHIP 3 9K OHM 1 10W 1 R213 61L0603392 CHIP 3 9K OHM 1 10W 1 ViewSonic Corporation 41 ViewSonic Corporation R214 61L0603392 CHIP 3 9K OHM 1 10W 1 R215 61L0603392 CHIP 3 9K OHM 1 10W 1 R216 61L0603221 CHIPR 220 OHM 5 1 10W 1 R217 61L0603221 CHIPR 220 OHM 5 1 10W 1 R218 61L0603471 CHIPR 470 OHM 5 1 10W 1 R219 61L0603471 CHIPR 470 OHM 5 1 10W 1 R220 61L0603123 CHIP 12K OHM 1 10W 1 R221 61L0603123 CHIP 12K OHM 1 10W 1 R222 61L0603153 CHIPR 15KOHM 5 1 10W 1 R223 61L0603153 CHIPR 15KOHM 5 1 10W 1 R234 61L0603621 CHIPR 620 OHM 5 1 10W 1 R235 61L0603621 CHIPR 620 OHM 5 1 10W 1 R236 61L0603561 CHIP 560 OHM 1 10W 1 R237 61L0603561 CHIP 560 OHM 1 10W 1 R238 61L0603123 CHIP 12K OHM 1 10W 1 R239 61L0603123 CHIP 12K OHM 1 10W 1 R901 61L1206105 CHIP IMOHM 5 1 4W 1 R902 61L1206105 CHIP IMOHM 5 1 4W 1 R908 61L1206519 CHIPR 5100HM 5 1 4W 1 R909 61L1206472 CHIP 4 7KOHM 5 1 4W 1 R910 61L1206472 CHIP 4 7KOHM 5 1 4W 1 R911 61L120647
27. RXO2 S RTD_SDIO3 BRAC RTD_SDIO2 10K 1716W BINE RXO3 1 VGAR 93A 64 36 ST BUM R206 100 1 16W DDG2 Sob cons GI rightness R207 100 1 16 47 oar S DDC2 SDA PANEL POWER SUIT R208 NC R209 100 1 16W DDC SCL lt 0 DDC2 SD 5 R210 100 1 16W DDC SDA Qe DDC LL5232B 5 6V LL5232B 5 6V D106 1005 5 D107 NC WPSA 1005 5 A L112 1 VGA G DGND 20103 DDC VDD DGND ZD104 My DDC SCL DGND b DATA1 DGND bd CLK 0 1 16 D108 NC WPSA 1005 5 A D109 NC WPSA 1005 5 A 20105 FL5232B S6WNECT DGND_ZD106 459828 56 DDC SDA DGND DATA1 DGND 4 CLK gt D111 NC WPSA 1005 5 A 0112 NC WPSA 1005 5 A DGND _ ZD107 p L5232B 5 6V TXD DGND _ 20108 1 52328 5 6V DDC2 SCL DGND DATA2 DGND DATAO 1 VGA B gt y 4 pa 0113 1005 5 2114 NC WPSA 1005 5 A DGND 20109 L5232B 5 6 RXD DGND ZD110 pf 5 6V DDC2_SDA DGND b amp DATA2 DGND b A DATAO Size Document Number Rev i RTD252 Date Monday August 30 2004 heet 3 of 3 49 ViewSonic Corporation 10 3 MCU AND KEY RTD RESET MCU VCC R123 10K 1 16W MCU VCC 5V 3 3V MCU VCC R124 NC R133 A A 0 1 16 A C124 5 added 082704 POWER gt WP R134 R135 0 1A6W NC MCU VCC z NET MCU VCC A gt gt MCU_RST R140 470 1 16W R144 R14 R144 8143 15 2158 R
28. Service Manual ViewSonic VX715 Model No VS10057 17 Color TFT LCD Display Manufacture Date Jan 10 05 Copyright Copyright 2004 by ViewSonic Corporation All rights reserved No part of this publication may be reproduced transmitted transcribed stored in a retrieval system or translated into any language or manual or otherwise without the prior written permission of ViewSonic Corporation Disclaimer ViewSonic makes no representation or warranties either expressed or implied with respect to the contents hereof and specifically disclaims any warranty of merchantability of fitness for any particular purpose 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 Trademarks Optiquest is a registered trademark of ViewSonic Corporation ViewSonic is a registered trademark of ViewSonic Corporation All other trademark used within this document is the property of their respective owners Revision History Roo Date Description of changes Approval 00 Jan 10 05 Initial Release 1 ViewSonic Corporation TABLE OF CONTENTS 1 Precautions and Safety Notices 2 Specification 3 Front Panel Function Control Description 4 Function Module Description 5 Adjusting Produce 6 Trouble Shooting Flow Chart 7 Recommended Spare Parts List 8 Exploded Diagram and Spare Parts List
29. UB 15PIN FEMALE 1 CN106 33L801724A PIN HEADER 24P 2 0mm 1 U104 56L1125543CV2 MTV512MV PLCC 44 MYSON 1 Y101 93L 2245 J 24MHZ 30PF 49US 1 Y102 93L 2258 H XTAL 24 576MHZ 30PPM HC 1 715L1373 F PCB 1 C102 65L0603102 31 CHIP 1000PF 50V NPO 1 C103 65L0603102 31 CHIP 1000PF 50V NPO 1 C104 65L0603102 31 CHIP 1000PF 50V NPO 1 C105 65L0603102 31 CHIP 1000PF 50V NPO 1 C106 65L0603102 31 CHIP 1000PF 50V NPO 1 C107 65L0603102 31 CHIP 1000PF 50V NPO 1 111 65L0603104 32 CHIP 0 1UF 50V X7R 1 ViewSonic Corporation 35 ViewSonic Corporation C112 65L0603104 32 CHIP 0 1UF 50V X7R 1 C114 65L0603105 17 1UF 16V Y5V 1 C116 65L0603104 32 CHIP 0 1UF 50V X7R 1 C119 65L0603104 32 CHIP 0 1UF 50V X7R 1 C120 65L0603104 32 CHIP 0 1UF 50V X7R 1 C125 65L0603100 31 CHIP 10PF 0 5PF 50V NP 1 C126 65L0603104 32 CHIP 0 1UF 50V X7R 1 C127 65L0603100 31 CHIP 10PF 0 5PF 50V NP 1 C128 65L0603100 31 CHIP 10PF 0 5PF 50V NP 1 C129 61L0603471 CHIPR 470 OHM 5 1 10W 1 C130 6510603104 32 CHIP 0 1UF 50V X7R 1 C131 65L0603509 31 CHIP 5PF 0 5PF 50V NPO 1 C132 65L0603509 31 CHIP 5PF 0 5PF 50V NPO 1 C135 65L0603473 32 CHIP 0 047UF 50V X7R 1 C138 65L0603104 32 CHIP 0 1UF 50V X7R 1 C139 65L0603104 32 CHIP 0 1UF 50V X7R 1 C140 65L0603104 32 CHIP 0 1UF 50V X7R 1 C141 65L0603104 32 CHIP 0 1UF 50V X7R 1 C142 65L0603473
30. deo ground T5V H V sync ground No connection SDA Horizontal sync Composite sync 14 Vertical sync 5 6 1 2 3 4 5 6 7 10 11 12 13 14 15 ViewSonic Corporation DVI 24 PIN CONNECTOR Pin No Signal Name Description TMDS negative differential input channel 2 TMDS positive differential input channel 2 GN Logic Ground DDC CLK DDC2B Clock D DDC DAT DDC2B Data Reserved 8 Reserved No connection D RXI TMDS negative differential input channel 1 RXI TMDS positive differential input channel 1 Logic Ground Reserved 12 Reserved No connection Reserved 13 Reserved No connection GND Logic Ground GND SENSE Pin Pull High e TMDS positive differential input reference clock 24 Reserved 20 D gi N N RXO TMDS positive differential input channel 0 N 2 2 2 2 Power 2 2 2 2 ViewSonic Corporation 3 Front Panel Function Control Descriptions MAIN MENU AUTO IMAGE ADJUST CONTRAST BRIGHTNESS INPUT SELECT COLOR ADJUST INFORMATION MANUAL IMAGE ADJUST SETUP MENU MEMORY RECALL 1 EXIT 2 SELECT Main Menu With On View controls 2 Front Control Panel Shown below in detail Power light Green ON Orange Power Saving 1 Display the control screen gt Main for the highlighted control pn 2 Also toggles b
31. e black border around the edge of the screen should barely touch is illuminated active area of the LCD display ViewSonic Corporation Main Menu Control Adjust the menu items shown below by using up ordown V buttons Control explanation Auto Image Adjust automatically sizes centers and fine tunes the video signal to eliminate waviness and distortion Press the 2 button to obtain a shaper image Note 1 Auto Image Adjust works with most common video card If this function does not work on your LCD display then lower the video refresh rate to 60 Hz and set the resolution to its pre set value 2 The Auto Image Adjust and most Manual image Adjust functions are not available for DVI input Contrast adjusts the different between the image background black level and the foreground white level d Brightness adjusts background black level of the screen image U Input Select allow you to toggle between an analog and a digital signal 3 Color Adjust provides several color adjustment modes preset color temperature and RGB which allow you to adjust red R green G blue B separately The factory setting for this product is 6500K 6500 Kelvin Color Adjust SRGB 9300K 6500K 5400K User Color 1 EXIT 2 SELECT sRGB sRGB is quickly becoming the industry standard for color management with support being included in many of the latest applications Enabling this setting allows the LCD display to more accurate
32. easured CN103 pin5 6 12 V Measured CN103 pin 9 10 5V Check Correspondent component Measured power supply of IC101 3 3V Is there any shortage or cold solder 2 5V Disconnected the Signal cable Loose the Signal OK cable Is the screen show Cable Not Connected Connected the Signal cable again Check LED status Green Connected the Signal cable Orange Check Power switch is in Power on again Check LED status status and check if Power switch had been stuck Check Inverter control relative circuit Green Orange OK Keyboard no stuck Check the Wire Harness from CN106 Measured RGB C152 C145 C135 Check Correspondent OK Wire tight enough ue RA Bo a Dee NG OK Check U102 Data output Block Replace 1 102 RTD2523 Replace Power board and Check Inverter control relative circuit Re do White balance adjust Note 1 If replace Main Board Please re do DDC content programmed amp White Balance 2 If replace Power Board only Please re do White Balance 28 ViewSonic Corporation 6 1 Panel Power Circuit Check R220 should have response from Check the PPWR panel power relative OV to 3 3V when we switch the power circuit Q107 In normal operation switch from on to off when LED green R220 should 3 3V Replace U104 and check PPWR panel Measured the U108 Drain 5V 6 2 IC101 Data Output NG Check RTD2523 IC101 signal outp
33. etween two and sayesacjusimenis control on some screens 3 Also a shortcut to toggle between analog and digital connections Power On Off 1 Scrolls through menu options and adjusts displayed control 2 Also a shortcut to display the contrast adjustment control screen ViewSonic Corporation Do the following to adjust the screen image 1 To display the Main Menu press button 1 MAIN MENU AUTO IMAGE ADJUST CONTRAST BRIGHTNESS INPUT SELECT COLOR ADJUST INFORMATION MANUAL IMAGE ADJUST SETUP MENU MEMORY RECALL 1 EXIT 2 SELECT GRAOS NOTE On View menus and adjustment screens disappear automatically after about 30 seconds 2 To select a control you want to adjust press or Y scroll up or down the Main Menu 3 After the control is selected press button 2 A control screen like the one shown below appears Contrast The line at the bottom of the screen tells you 1 Exit 2 3 Brightness what you can do next Exit or select the Brightness control 4 To adjust the control press the up A ordown Y buttons 5 To save the adjustments and exit the menu press button 1 twice The following tips may help you optimize your display Adjust your computer s graphic card so that is outputs a video signal 1280x1024 3 60Hz to the LCD display Ifnecessary make small adjustments using H Position and V Position until the screen image is completely visible Th
34. he cloth not directly onto the glass screen Keep the monitor away from magnetic objects motors TV sets and transformer Do not place heavy objects on the monitor or power cord 12 PRODUCT SAFETY NOTICE Many electrical and mechanical parts in this chassis have special safety visual inspections and the protection afforded by them cannot necessarily be obtained by using replacement components rated for higher voltages wattage etc Before replacing any of these components read the parts list in this manual carefully The use of substitute replacement parts which do not have the same safety characteristics as specified in the parts list may create shock fire or other hazards 1 3 SERVICE NOTES 1 When replacing parts or circuit boards clamp the lead wires around terminals before soldering 2 When replacing a high wattage resistor more than 1W of metal oxide film resistor in circuit board keep the resistor about 5mm away from circuit board 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 Usage of this product please refers to also user s manual ViewSonic Corporation 2 Specification 2 1 PRODUCT SPECIFICATIONS LCD Panel 17 0 TFT Power Management Energy Star compliant VESA DPMS compatible lt 1W Recommend Resolution 1280 x1024 60Hz Pixel Dimension 0 264 H x 0 264 V mm LCD Display Color 16 2M Colors 6 2
35. ly display colors the way they were originally intended Enabling the sRGB setting will cause the Contrast and Brightness adjustments to be disabled 9300K Adds blue to the screen image for cooler white used in most office setting with fluorescent lighting 6500K Adds red to the screen image for warmer white used in most office setting with fluorescent lighting ViewSonic Corporation 5400K Adds green to the screen image for a darker color 5000K Adds blue and green to the screen image for a darker User Color Individual adjustments for red R green G blue B 1 To select color R G or B press button 2 2 To adjust selected color press or V 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 Information displays the timing mode video signal input coming from the graphics cards in your computer NOTE VESA 1280x1024 2 60Hz recommended means that the resolution is 1280x1024 and the refresh rate is 60Hz Information H Frequency 31 47 KHz V Frequency 31 47 Hz Pixel Clock 24 80 MHz Resolution 640 x 480 Model No Serial www viewsonic com Exit Manual Image Adjust controls are explained below Horizontal Position moves the screen image left or right Vertical Position moves the screen image up or down Horizontal Size adjusts the width of the screen image Fine
36. ndicator reached the value B 100 7 Repeat above procedure item 4 5 6 until chroma 7120 RGB value meet the tolerance 100 5 C Adjust 5400 color temperature 1 Switch the chroma 7120 to RGB Mode with press MODE button 2 Switch the MEM channel to Channel 1 1 with up or down arrow on chroma 7120 3 The LCD indicator on chroma 7120 will show x 0 335 0 03 y 0 350 0 03 Y 250 20 cd m 4 Adjust the RED of color3 on factory window until chroma 7120 indicator reached the value R 100 5 Adjust the GREEN of color3 on factory window until chroma 7120 indicator reached the value G 100 21 ViewSonic Corporation 6 Adjust the BLUE of color3 on factory window until chroma 7120 indicator reached the value B 100 7 Repeat above procedure item 4 5 6 until chroma 7120 RGB value meet the tolerance 100 5 D Press reset key and Turn the Power button off to on to quit from factory mode 2 Geometry 1 Set cross hatch pattern and preset timing as timing table listed 2 Change to each mode in turn and wait for the monitor finish auto alignment and save press before change to next mode 3 Until all of modes are adjusted exit OSD menu and press PWR OFF to exit factory mode 5 4 Firmware update procedure 1 Equipment needed 715 PC Personal computer LPT cable 12V DC Firmware upgrade program ViewSonic Corporation 2 Connection For PC COM port For monitor 23 Vie
37. omatically Meanwhile press MENU the OSD screen will locate at LEFT TOP OF PANEL 4 Bias adjustment Set the Contrast D to 70 Adjust the Brightness 13 to 100 5 Gain adjustment Move cursor to F and press MENU key A Adjust 9300 color temperature 1 Switch the Chroma 7120 to RGB Mode with press MODE button 2 Switch the MEM channel to Channel 9 with up or down arrow on chroma 7120 3 LCD indicator on chroma 7120 will show x 0 283 40 03 0 298 0 03 Y 250 20 cd m 4 Adjust the RED of color on factory window until chroma 7120 indicator reached the value R 100 5 Adjust the GREEN of colorl on factory window until chroma 7120 indicator reached the value G 100 6 Adjust the BLUE of color1 on factory window until chroma 7120 indicator reached the value B 100 7 Repeat above procedure item 4 5 6 until chroma 7120 RGB value meet the tolerance 100 5 B Adjust 6500 color temperature 1 Switch the chroma 7120 to RGB Mode with press MODE button 2 Switch the MEM channel to Channel 10 with up or down arrow on chroma 7120 3 The LCD indicator on chroma 7120 will show x 0 313 0 03 0 329 30 03 Y 250 20 cd m 4 Adjust the RED of color3 on factory window until chroma 7120 indicator reached the value R 100 5 Adjust the GREEN of color3 on factory window until chroma 7120 indicator reached the value G 100 6 Adjust the BLUE of color3 on factory window until chroma 7120 i
38. or PT201 PT202 NG OK Check Q209 Q210 C213 or Q211 C212 C214 Check the output of PT201 PT202 N Change PT201 PT202 OK Check connecter amp lamp ViewSonic Corporation 6 7 Software Flow Chart START MCU Initialize4 Main Polling Loop Invalid video Yes Service Invalid Video Mode Menu Yes service No Input Menu Power Button Yes Power Off and Stop Pressed Power butto Pressed Check DPMS P Poweron 33 ViewSonic Corporation 7 Recommend Spare Part List VX715 BOM List Location Part NO Description Quantity Remark 52L6020 1 PROTECT FILM 1 CBPC780KCWVW CONVERSION BOARD 1 KEPC780KC9 KEY BOARD 1 PWPC1742CPV1 POWER BOARD 1 15L8012 1 MAIN FRAME 1 23L3178709 2A VSC17 LCD BACKCOVER 1 34L1326KR B STAND R COVER 1 34L1327KS B BUCKET R COVER 1 40L 190709 1B ID LABEL 1 40L 459709 1B CARTON LABEL 1 40L 459709 2B S N LABEL 1 40L 459709 4A H V WARNING LABEL 1 40L 459709 5A HI POT LABEL FOR 17 LCD 1 40L 58162435A LABEL 1 41L7800709 4A QSG 1 44L3231 14 EVA WASHER 1 44L3231 15 EVA WASHER 1 44L3734 1 EPS L 1 4413734 2 EPS R 1 44L3734709 2A CARTON 1 45L 7628 V3 PE BAG FOR MANUAL 1 45L 88607 PE BAG FOR MONITOR 1 451 88609 4 1 451 88609 B EPE COVER 1 50L600 2 HANDLEI 1 50L600 3 HANDLE2 1 52L 118524 VSC TAPE 5 52L 1186 SMALL TAPE 8 52L602
39. timing capacitor 9 VCC Power supply 2 RT External timing resistor 10 20UT Output 3 IN Positive input for error amplifier l 2DTC Output 2 dead time soft start 1 setting 4 IN AS i FOIS COO 12 2FBK Error amplifier 2 output Positive input for error 5 IFBK Error amplifier output 13 2IN amplifier 6 IDTC Output 1 dead time soft start 14 2IN Positive input for error setting amplifier 7 Output 1 15 SCP Timing latch setting 8 GND Ground 16 REF voltage output 18 ViewSonic Corporation 4 4 Panel Control Circuit The high level output from U104 makes Q107 Q108 break through and offer 5V to panel when work well The output is low level when it s saving energy state and Q107 Q108 break off so the panel doesn t work PANEL POWER MCU VCC 12V 5V C115 22uF 16V R217 R219 10K 1 16W NC 10K 1 16W R220 4 7K new 1 Q107 PMBS3904 4 5 On Off Brightness control circuit ON OFF control When it works well the outputs are low level and high in saving energy state Brightness control When it works well the output PWM pulse from PINS55 of IC101 adjusts the brightness the smaller the duty and the higher the brightness 19 ViewSonic Corporation 5V R112 R115 1K 1 16W 10K 1 16W BL ADJ R101 4 K 116W lt BRIGHTNESS 01017 C114 PMBS3904 1uF 16V 0805 C N3904 R119 1 16 L R121 B E 220 1 16W
40. ut pin73 94 Is the waveform ok Check RTD2523 operation condition HS VS CRYSTAL Check relative circuit Replace RTD2523 IC101 or replace main board If Main Board being replaced please do the DDC content reprogrammed 29 ViewSonic Corporation 6 4 Keypad Board OSD is unstable or not working Is Keypad board connecting normally OK NG Is Button Switch normally Replace Button Switch OK NG Is Keypad board normally OK Check main board Connect Keypad Board Replace Keypad Board 30 ViewSonic Corporation 6 5 No Power Check to CN102 12 12 N G D Check AC line volt 110V or 220V OK Be Check AC line Check the voltage of C905 OK Check F901 bridge rectified circuit Check start voltage for the pin3 of IC901 OK NG Check R906 R907 IC901 Check the auxiliary voltage is between 10V 16V OK Check D910 D911 ZD904 1 Check IC901 2 Check Q901 Q902 OVP circuit 31 ViewSonic Corporation 6 6 No Backlight Check C201 12V OK Change F902 Check D201 Q209 Q210 D202 Q211 Q212 Check ON OFF signal OK Check Interface board Check U201 pin9 12V voltage of C905 NG Change Q201 or Q202 OK Check the pinl of U201 have saw tooth wave NG Change U201 OK Check D201 D202 have the output of square wave at short time NG CheckQ205 Q207 Q203 Q201 or OK Q206 Q208 Q204 D202 Check the resonant wave of pin2 amp pin5 f
41. wSonic Corporation Remark 1 Cancel J6 and J7 2 Connect Pin11 of U3 to Pin12 of D SUB and Pin12 of U3 to Pin 15 of D SUB 24 ViewSonic Corporation 3 Operation Steps a Preparing Action 1 Connect the PC ISP writer board and Monitor with signal cable Ensure supplying normal power to PC ISP Writer Board and monitor 2 All along press key Y 2 of the monitor which will be written the second key and fourth key count from left to right and pull out and insert the 220V AC plug of power cable to make the monitor entering ISP Write mode at the same time until ISP appeared 25 ViewSonic Corporation 3 Open 8051IspWriter exe program in PC click Select Chip to select the type of the MCU W78E65 see figure 1 then click Select Bank0 to select the relevant firmware vsc 8131b CPT17EA03 v015 hex and select the right file format inte He see figure 2 V E SERVICE MANUAL VPHAVSC VET15 Winbond IspWrite Dx Configuration File AP Setting View Help Chip Information Select Chip WTSE65 Select Chip AP ROM Size File Informa Chip Name WTSGE65 AP ROM Size B4K LD ROM Size 4K Chip Item APROM Size LPROM Size 4 WTGES2C 4 W WTGESA4C WT8ES8B Function WTSLES8 wWT8EF858 Program 11 78E516B 17818516 Upload WTBEBZB WTBLEB2 veri fl WTSLE365 WTTLES18 WTTES16 St atu a mran Select Ba 4A 4A M M amp amp M exit LD

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