ViewSonic G90f/B-3 User Manual Download

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Model No.

23283

”

Digital Controlled Color Monitor

Service Manual

ViewSonic

G90f/B-3

ViewSonic

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

(

G90f/B-3_SM_944

Rev. 1a –

Jan. 2005

)

Summary of Contents for G90f/B-3

Page 1: ...Model No VS23283 19 Digital Controlled Color Monitor Service Manual ViewSonic G90f B 3 ViewSonic 381 Brea Canyon Road Walnut California 91789 USA 800 888 8583 G90f B 3_SM_944 Rev 1a Jan 2005...

Page 2: ...y disclaims any warranty of merchantability or 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...

Page 3: ...uble Shooting Flow Chart 9 Block Diagram 10 Schematic Diagrams 7 Recommended Spare Parts List 1 Precautions and Safety Notices 5 Adjusting Procedure 8 Exploded Diagram And Spare Parts List 11 PCB Layo...

Page 4: ...high voltage circuit If a short circuit is found replace all parts which have been overheated as a result of the short circuit 3 3 All the protective devices munt be reinstalled per original design 3...

Page 5: ...IATION WARNING The only potential source of X Radiation is the picture tube However when the high voltage circuit is operating properly there is no possibility of X Radiation problem The basic precaut...

Page 6: ...FERENCE 2 1 7 POWER CORD 1 83 METER 2 1 8 SIGNAL CABLE 1 83 METER 2 2 VIDEO INTERFACE 2 2 1 RGB VIDEO ANALOG 0 7 VP P AND 1 VP P POSITIVE INPUT IMPEDANCE 75 OHM 2 2 2 MAX PC VIDEO SIGNAL 950mV WITH NO...

Page 7: ...U T L E V E L V I EWM A T C H C O L O R L A N G U A G E V I EWM E T E R M E MO R Y R E C A L L E X I T 1 S E L E C T 2 OSD OSD 2 MA I N M E N U 1 C O N T R A S T B R I G H T N E S S H S I Z E P O S I...

Page 8: ...N 4 1 10 TIMING CHART REFER TO ITEM 7 2 4 1 11 AMBIENT LIGHTING ENVIRONMENT 400 TO 600 LUX 4 1 12 CRT FACE TO EAST 4 2 CRT SPECIFICATION ITEM SPEC SIZE 19 DIAGONAL 18 DEFLECTION 90 PERSISTENCE MEDIUM...

Page 9: ...RST CASE 5 VERTICAL ADJACENT 5 VERTICAL WORST CASE 5 H0RIZONTAL FREQUENCY 31KHZ 38KHZ HORIZONTAL ADJACENT 7 HORIZONTAL WORST CASE 7 VERTICAL ADJACENT 7 VERTICAL WORST CASE 7 12 x 10 INPUT SIGNAL BLOCK...

Page 10: ...INATE SYSTEM COLOR 9300O K X 0 283 0 015 Y 0 297 0 015 COLOR 6500O K X 0 313 0 020 Y 0 329 0 020 COLOR 5000O K X 0 346 0 020 Y 0 359 0 020 4 11 2 COLOR PURITY IMPURITY SHOULD NOT APPEAR IN THE PATTERN...

Page 11: ...AST 100 FOR 9300O K 4 13 BRIGHTNESS UNIFORMITY 4 13 1 75 MAXIMUM BETWEEN CENTER TO ANY EIGHT POINTS WITHIN THE DISPLAY PICTURE FULL WHITE PATTERN 4 14 SIZE REGULATION 4 14 1 STATIC REGULATION PICTURE...

Page 12: ...HEIGHT WEAK CORNER 3 EDGES 6 FACES 1 TIME ON EACH TESTED UNIT 4 SETS MIN DROP QTY 5 5 ALTITUDE OPERATING 0 3000 METERS NON OPERATING 0 12000 METERS 6 PHYSICAL SPECIFICATION 6 1 DIMENSION HEIGHT 457 mm...

Page 13: ...IBLE H V COMPOSITA SYNC LOW 0 0V MIN 0 65V MAX HIGH 1 2 40V MIN 3 5V NOM 5 5V MAX TIMING OF INPUT SIGNALS A H TOTAL TIME O V TOTAL TIME B H SYNC PULSE WIDTH P V SYNC PULSE WIDTH C H BACK PORCH Q V BAC...

Page 14: ...222 80 3 232 160 2 702 152 2 235 176 2 201 208 D H ACTIVE US PIXELS 25 422 640 25 422 640 17 778 640 16 162 800 14 222 800 13 003 1024 10 836 1024 E H FRONT PORCH US PIXELS 0 636 16 0 318 8 1 556 56 0...

Page 15: ...XELS 2 20 176 1 44 144 1 837 248 1 422 224 1 501 304 D H ACTIVE US PIXELS 12 8 1024 11 52 1152 9 481 1280 8 127 1280 7 901 1600 E H FRONT PORCH US PIXELS 0 4 32 0 32 32 0 119 16 0 406 64 0 361 64 VERT...

Page 16: ...2 3 4 5 6 7 8 9 ________________________________________ 0 00 FF FF FF FF FF FF 00 5A 63 10 1A C9 01 01 01 01 01 0E 01 03 20 1D 24 1B BE 2A BB B8 A3 52 46 30 98 24 0F 48 4C FF FF 80 81 99 40 D1 40 A9...

Page 17: ...nction Press the button to enter the select function 4 Adjustment control button Push the increased or decrease button for the desired adjustment all adjustment are memorized automatically immediately...

Page 18: ...Position 3 V size Position 4 Pincushion Balance 5 Trapezoid Parallel 6 Top Bottom Hook 7 ZOOM 8 Tilt Main menu Part 2 9 Degauss 10 H V Moire 11 OSD Position 12 Input Level 13 View match color 14 Lang...

Page 19: ...own moves the screen image up PINCUSHION straightens the vertical sides of the screen image by curving them inward or out ward curves the vertical edges inward curves the vertical edges outward PIN BA...

Page 20: ...E V I E W M E T E R M E M O R Y R E C A L L E X I T 1 S E L E C T 2 OSD OSD DEGAUSS manual degauss function Press button to active manual degauss function H MOIRE reduces vertical interference that ca...

Page 21: ...tor is operating in a factory preset mode If you make an adjustment you don t like press button to recall factory setting DIAGNOSTIC 1 If monitor into DPMS mode will show Display Time 5 seconds Back g...

Page 22: ...sted through VR101 B Secondary Each raw of DC voltage output from T101 a TP201 voltage output from T101 pin9 and is rectified by D202 C201 b TP202 voltage output from T101 pin14 and is rectified by D2...

Page 23: ...t converter circuit 2 2 Vertical deflection a IC401 pin23 and pin13 output to IC501 KA2142 pin7 and pin1 then IC501 pin 6 make vertical deflection output b Vertical blank IC501 pin4 take a blanking pu...

Page 24: ...s for Red Green Blue channel The video input signal is fed to the video preamplifier IC601 NT6813K pin5 Blue pin6 Green pin7 Red through AC coupling capacitor C601 C602 C603 The clamping pulse comes f...

Page 25: ...ol CS1 HS2 To count H SYNC by the output frequency then output the cumulating as listed Freq CS1 CS2 CS3 CS4 HS1 HS2 33K 0 0 0 0 0 0 33K 36K 0 0 1 1 0 0 36K 41K 1 0 0 0 0 0 41K 45K 1 0 1 1 0 0 45K 51K...

Page 26: ...Waveform 1 2 3 4 5 6 23 ViewSonic Corporation Confidential Do Not Copy G90f B 3...

Page 27: ...7 8 8 10 11 12 24 ViewSonic Corporation Confidential Do Not Copy G90f B 3...

Page 28: ...13 14 14 16 17 18 25 ViewSonic Corporation Confidential Do Not Copy G90f B 3...

Page 29: ...19 20 20 22 23 24 26 ViewSonic Corporation Confidential Do Not Copy G90f B 3...

Page 30: ...25 26 26 28 29 30 27 ViewSonic Corporation Confidential Do Not Copy G90f B 3...

Page 31: ...30 32 33 34 34 36 28 ViewSonic Corporation Confidential Do Not Copy G90f B 3...

Page 32: ...37 38 39 40 40 42 29 ViewSonic Corporation Confidential Do Not Copy G90f B 3...

Page 33: ...43 44 45 46 46 48 30 ViewSonic Corporation Confidential Do Not Copy G90f B 3...

Page 34: ...49 50 51 52 53 54 31 ViewSonic Corporation Confidential Do Not Copy G90f B 3...

Page 35: ...55 56 32 ViewSonic Corporation Confidential Do Not Copy G90f B 3...

Page 36: ...n proper alignment is completed 8 The monitor is not required to meet specs during the following but must tolerate without damage to the CRT or circuits any sequence or combination of power on and off...

Page 37: ...ible 3 1 3 Adjust VR401 to center raster on screen such that the horizontal distance from the midpoint of the left display edge to the left bezel edge is within 2mm of the distance from the midpoint o...

Page 38: ...llelogram distortion trapezoid parallelogram 1 5mm 3 4 4 Rotate adjustment A A B B C C D D Pinchshion 1mm A B C D Barrel 1mm A B C D Pincushion Barrel distortion 2mm 2mm 2mm Picture 2mm 264mm 352mm Tr...

Page 39: ...iver B Driver to meet following chromatically spec 9300 K x 0 283 0 015 y 0 297 0 015 Y 40 2 FL 4 7 Apply 70mmx70mm green window pattern adjust G Driver to obtain green window pattern light O P about...

Page 40: ...C PCB defined Main board 37 ViewSonic Corporation Confidential Do Not Copy G90f B 3...

Page 41: ...djustment data 2 9 Save geometry Save geometry adjustment data 2 10 Save all preset mode Save adjustment data to E2 PROM 2 11 Reset Monitor Reset H Position V Size Parallel Contrast Brightness R Drive...

Page 42: ...ull adjust 255 0 Save color to 9300K Save color to 6500K Save color to 5000K Save geometry All mode adjust finish Save all preset mode Yes No Yes Initial OK No Get mode data Change other mode 39 ViewS...

Page 43: ...ress Power on key Set burn in flag d Press Power on key All mode recall PC Pattern Generator Monitor Signal cable H V SYNC Video Output Input H V SYNC Video Initial data Adjustment data Initial data A...

Page 44: ...n c t i o n 2 S e l e c t f u n c t i o n O S D V P O S I T I ON O S D H P O S I T I ON S I S AV E G E OME T RY S 9 S AV E 9 3 0 0 S 6 S AV E 6 5 0 0 C ON T R A S T B R I GH T N E S S H P O S I T I ON...

Page 45: ...the power indictor LED light once and the go out Check horizontal circuit and power on again Is the power indicator LED light normally Check vertical circuit and power on again Is the LED normal Check...

Page 46: ...form of Q402 collector normal Is the waveform of Q401 BASE normal Is the horizontal output circuit normal Is the voltage on terminal TP201 80V Check power supply circuit Check H sync input Check H dri...

Page 47: ...ire screen light up Turn the FBT screen clockwise FBT is defective R457 D420 are defective Is the voltage at the pin10 of CRT normal D206 Q208 R226 are defective Heater voltage approx 6 3V Q420 Q419 I...

Page 48: ...Is the waveform at pin6 of IC501 normal R502 R503 are defective Check V sync of IC301 pin32 or signal cable Is the IC501 pin2 13V Pin5 11V Is the waveform of IC401 pin21 pin23 normal R502 R503 are nor...

Page 49: ...he CRT is defective The raster don t appear Check the signal cable or computer IC601 its buffer or its drive circuit clamping pulse blanking pulse is defective Video output circuit defective IC603 pin...

Page 50: ...ronic Components ViewSonic Model Number VCDTS23283 3 Rev 1a Item ECR ECN ViewSonic P N Ref P N Location Universal number Q ty 1 Accessories AC POWER CORD L1830 BLK US Black A PC 0106 0194 3072000300 1...

Page 51: ...3 CABLE TIE NYLON66 94V 2 YJ 98 33 M MS 0808 5420 3421032500 CABLE TIE NYLON 94V 2 L 295 YJ 295 34 M MS 0808 4206 3421047903 SPACER SUPPORT NYLON 94V 2 14 9 11 8 35 P 00000216 3500112200 END BLOCK TOP...

Page 52: ...3800 RES CF 1 4W 10K J SMALL R338 RD16ST52 10K J 101 E R 0405 5694 0013103800 RES CF 1 4W 10K J SMALL R339 RD16ST52 10K J 102 E R 0405 5694 0013103800 RES CF 1 4W 10K J SMALL R4410 RD16ST52 10K J 103...

Page 53: ...E R 0405 5732 0013332800 RES CF 1 4W 3 3K J SMALL R332 RD16ST52 3 3K J 170 E R 0405 5732 0013332800 RES CF 1 4W 3 3K J SMALL R333 RD16ST52 3 3K J 171 E R 0405 5732 0013332800 RES CF 1 4W 3 3K J SMALL...

Page 54: ...000 RES CF 1 2W 2 2 J R115 RD50ST52 2R2 J 237 E R 0405 6831 0023273000 RES CF 1 2W 27K J R216 RD50ST52 27K J 238 E R 0405 5770 0023303000 RES CF 1 2W 30K J R629 RD50ST52 30K J 239 E R 0405 6806 002333...

Page 55: ...MS 0808 7471 0900030118 RES PTC R 8 OHM 20 27A 2P PTC101 DGC2R08M 310 N A 0900030126 RES PTC R 8 OHM 20 27A 2P PTC101 MZ72 B80M1 311 E TH 0416 0027 0910800211 RES NTC 8 L 3A NTC101 08SP008L 312 E TH 0...

Page 56: ...AP CD 100V 01U M Z5U TP5 C405 DCT103M30Z5UH6FJ5A 377 E C 0404 3642 1122354800 CAP CD 100V 01U M Z5U TP5 C408 DCT103M30Z5UH6FJ5A 378 E C 0404 3642 1122354800 CAP CD 100V 01U M Z5U TP5 C418 DCT103M30Z5U...

Page 57: ...5 N A 1421447012 CAP AL 25V 47U M 5 11 TP5 C106 TVX1E470MA05110TC1 446 N A 1421447012 CAP AL 25V 47U M 5 11 TP5 C211 TVX1E470MA05110TC1 447 N A 1421447012 CAP AL 25V 47U M 5 11 TP5 C510 TVX1E470MA0511...

Page 58: ...BF024D0474JDC 515 E C 0404 3688 1691151510 CAP MM PC 63V 47U J TP5 C511 R82DC3470DQXXJ 516 E C 0404 3688 1691151521 CAP MM PC 63V 47U J TP5 C511 B32529 C474 J189 517 E C 0404 4699 1691180C01 CAP MM DP...

Page 59: ...3006200 DIO FRD 1A 800V DO 41 100nS D108 UF108G T B 583 N A 2013006301 DIO FRD 1A 1000V DO 41 75nS D202 UF4007 E3 73 584 N A 2013110700 DIO FRD 2A 200V DO 204AC DO 15 50nS D205 EGP20D E3 73 585 N A 20...

Page 60: ...00 DIO SW 0 15A 75V DO 35 D109 1N4148 TA E 653 N A 2043207500 DIO SW 0 15A 75V DO 35 D110 1N4148 TA E 654 N A 2043207500 DIO SW 0 15A 75V DO 35 D114 1N4148 TA E 655 N A 2043207500 DIO SW 0 15A 75V DO...

Page 61: ...002 DIO SW 0 25A 200V SOD 27 DO 35 D416 BAV21 133 723 N A 2043220002 DIO SW 0 25A 200V SOD 27 DO 35 D423 BAV21 133 724 N A 2043220002 DIO SW 0 25A 200V SOD 27 DO 35 D610 BAV21 133 725 N A 2043220002 D...

Page 62: ...111025001 TR 50V 0 15A TO 92 200 240 Q411 KSA1015GRTA 791 N A 2111025001 TR 50V 0 15A TO 92 200 240 Q412 KSA1015GRTA 792 N A 2111025001 TR 50V 0 15A TO 92 200 240 Q418 KSA1015GRTA 793 N A 2111025001 T...

Page 63: ...808 5250 3220130400 TAPE W 9 1350F 1 3M 1350F 1 W 9 858 N A 3220145010 TAPE W 26 5 1350F 1 3M 1350F 1 W 26 5 859 M MS 0808 7466 3220311424 TAPE W 9 CT 280 YAHUA CT 280 W 9 860 N A 3220316924 TAPE W 26...

Page 64: ...7030100 CORE FERI SP24 24 MA070 U7000 MA070 ET 24A 930 N A 2836022100 3132010300 4157030200 ASSY 931 M MS 0808 5085 3132010300 BOBBIN PBT 94V 0 932 N A 4157030200 CORE FERI SP24 24 A07 U7000 A07 ET 24...

Page 65: ...TILE DC 12V 50mA SW301A SW 302A SW303A SW SKHHLM1510 993 M SW 0815 0176 3000091816 SWITCH TACTILE DC 12V 50mA SW305 SKHHLM1510 994 M SW 0815 0202 3000091820 SWITCH TACTILE DC 15V 50mA SW301A SW 302A S...

Page 66: ...J420 J320 J23 1 J309 J226 J 203 J332 J40 1050 M WR 0828 0402 4010670000 WIRE CU 0 6 TNC 1051 M WR 0828 0224 3411000300 JUMP WIRE COPPER 0 6 7 5 4 0 JW601 J613 1052 M WR 0828 0402 4010670000 WIRE CU 0...

Page 67: ...2 4010670000 WIRE CU 0 6 TNC 1087 N A 3411004203 JUMP WIRE COPPER 0 6 6 0 4 0 J605 1088 M WR 0828 0402 4010670000 WIRE CU 0 6 TNC 1089 PL CL 0710 0026 3420003302 CLIP FIXING SECC 30 10 T 1 5 1090 M MS...

Page 68: ...0808 5008 3421030303 CABLE TIE NYLON66 94V 2 YJ 98 33 M MS 0808 5420 3421032500 CABLE TIE NYLON 94V 2 L 295 YJ 295 34 M MS 0808 4206 3421047903 SPACER SUPPORT NYLON 94V 2 14 9 11 8 35 P 00000216 35001...

Page 69: ...T52 10K J 99 E R 0405 5694 0013103800 RES CF 1 4W 10K J SMALL R334 RD16ST52 10K J 100 E R 0405 5694 0013103800 RES CF 1 4W 10K J SMALL R338 RD16ST52 10K J 101 E R 0405 5694 0013103800 RES CF 1 4W 10K...

Page 70: ...1 4W 330 J SMALL R322 RD16ST52 330R J 167 E R 0405 2532 0013332000 RES CF 1 4W 3 3K J R335 RD25ST52 3 3K J 168 E R 0405 5732 0013332800 RES CF 1 4W 3 3K J SMALL R319 RD16ST52 3 3K J 169 E R 0405 5732...

Page 71: ...1R8 T52 233 E R 0405 6804 0023208000 RES CF 1 2W 2 J R505 RD50ST52 2R J 234 E R 0405 5939 0023224000 RES CF 1 2W 220K J R460 RD50ST52 220K J 235 E R 0405 5939 0023224000 RES CF 1 2W 220K J R464 RD50S...

Page 72: ...5 E X 0415 0077 0730140512 CRYSTAL 12MHZ 30PPM 30PF 49US Y301 12 000MHZ AT 49 306 E FS 0410 0089 0805340701 FUSE TSC 4A 250V UL SEM PIG F101 5HTP4 93mm 307 E FS 0410 0089 0805340702 FUSE TSC 4A 250V U...

Page 73: ...371 E C 0404 3642 1122354800 CAP CD 100V 01U M Z5U TP5 C627 EA7103MG1H 372 E C 0404 3642 1122354800 CAP CD 100V 01U M Z5U TP5 C639 EA7103MG1H 373 E C 0404 3642 1122354800 CAP CD 100V 01U M Z5U TP5 C10...

Page 74: ...CAP AL 25V 100U M 6 12 TP5 C444 0110025107VM4 439 N A 1421410115 CAP AL 25V 100U M 6 3 11 TP5 C105 TVR1E101MA06110TC3 440 N A 1421410115 CAP AL 25V 100U M 6 3 11 TP5 C209 TVR1E101MA06110TC3 441 N A 14...

Page 75: ...5 35 C101 400USR220MST25 35 508 N A 1604314200 CAP X MP PC 275VAC 33U M P15 CX102 KNB1560 0 33UFKL25 509 E C 0404 4687 1604314218 CAP X PP PC 275VAC 33U K P15 CX102 KNB1530 0 33UFML25 510 E C 0404 492...

Page 76: ...3006103 DIO FRD 1A 600V DO 204AL DO 41 250nS D414 RGP10J E3 73 574 N A 2013006103 DIO FRD 1A 600V DO 204AL DO 41 250nS D415 RGP10J E3 73 575 N A 2013006103 DIO FRD 1A 600V DO 204AL DO 41 250nS D418 RG...

Page 77: ...N4148 133 642 N A 2043207500 DIO SW 0 2A 75V DO 35 D601 1N4148 133 643 N A 2043207500 DIO SW 0 2A 75V DO 35 D602 1N4148 133 644 N A 2043207500 DIO SW 0 2A 75V DO 35 D603 1N4148 133 645 N A 2043207500...

Page 78: ...IO SW 0 2A 75V DO 35 D604 1N4148TA 712 N A 2043207500 DIO SW 0 2A 75V DO 35 D605 1N4148TA 713 N A 2043207500 DIO SW 0 2A 75V DO 35 D606 1N4148TA 714 N A 2043207500 DIO SW 0 2A 75V DO 35 D607 1N4148TA...

Page 79: ...0V 0 15A TO 92 120 240 Q421 2SC1815 Y 779 N A 2101057000 TR 250V 0 5A TO 92 50 Q501 BF422ZL1G 780 N A 2101057000 TR 250V 0 05A TO 92 50 Q501 BF422 TPE2 F 781 N A 2101063000 TR 350V 0 5A TO 92 30 Q102...

Page 80: ...00 EPOXY 2089 1 A 2089 1 A 845 M MS 0808 5147 4020117600 EPOXY 2089 1 B 2089 1 B 846 M MS 0808 5152 4020205500 THINNER OF V 1380 847 M MS 0808 5153 4020208200 FLUX ROSIN 800 NO CLEAN 800 NO CLEAN 848...

Page 81: ...OE2828 CV8 913 N A 2836021400 3131580000 4157011000 ASSY 914 M MS 0808 5243 3131580000 BOBBIN ROLL PBT 94V 0 915 E L 0407 1181 4157011000 CORE FERI SP28 28 A07 UI 7000 A07 ET 28 916 N A 2836021900 313...

Page 82: ...T 2R2K 980 E L 0407 1015 2922040006 COIL PEAKING 2 2uH K TP AXIAL 0307 L618 CP 0307AT 2R2K 981 E L 0407 1243 2922130206 COIL PEAKING 22uH K TP AXIAL 0307 L601 CP 0307AT 220K 982 E L 0407 1243 29221302...

Page 83: ...350252200 PIN ROUND BRONZE 2 36 13 8 TIN PLATED 1039 M MS 0808 5119 3350252200 PIN ROUND BRONZE 2 36 13 8 TIN PLATED 1040 M MS 0808 5119 3350252200 PIN ROUND BRONZE 2 36 13 8 TIN PLATED 1041 M MS 0808...

Page 84: ...C 1083 M WR 0828 0390 3411000800 JUMP WIRE COPPER 0 6 20 0 4 0 J430 J428 J21 6 J209 J208 J 431 J408 J32 6 J435 J418 J 419 J312 J33 1084 M WR 0828 0402 4010670000 WIRE CU 0 6 TNC 1085 M WR 0828 0390 34...

Page 85: ...82 ViewSonic Corporation Confidential Do Not Copy G90f B 3 8 Exploded Diagram And Spare Parts List...

Page 86: ...SW 0815 0151 3000091800 SWITCH TACTILE DC 12V 50mA 5 18 E D 0403 1199 2300062706 LED 5mm ORG GRN 3PIN 1 19 M MS 0808 4828 3360053201 LED HOLDER NY66 NAT 1 20 M SW 0815 0164 3000140426 SWITCH PUSH SPS...

Page 87: ...000091800 SWITCH TACTILE DC 12V 50mA 5 18 E D 0403 1199 2300062706 LED 5mm ORG GRN 3PIN 1 19 M MS 0808 4828 3360053201 LED HOLDER NY66 NAT 1 20 M SW 0815 0164 3000140426 SWITCH PUSH SPST DC30V 0 3A 1...

Page 88: ...85 ViewSonic Corporation Confidential Do Not Copy G90f B 3...

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Page 102: ...9 Block Diagram 99 ViewSonic Corporation Confidential Do Not Copy G90f B 3...

Page 103: ...10 Schematic Diagrams 100 ViewSonic Corporation Confidential Do Not Copy G90f B 3...

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Page 108: ...11 PCB Layout Diagrams 105 ViewSonic Corporation Confidential Do Not Copy G90f B 3...

Page 109: ...G90f B 3 Service Manual m e t I t n e l l e c x E d o o G r i a F d a B 1 2 3 t i n U r i a F d a B in the USA at facsimile 1 909 839 7943 You may also e mail any suggestions to the Director Quality S...

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