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ViewSonic VG920-1, Руководство по обслуживанию


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Item

ViewSonic P/N

Ref. P/N

Description

Location

Universal number#

Q'ty

493

#N/A

57G 760  5

DTC144WKA

Q201

1

494

#N/A

57G 760 4C

RT1P44HC-T112-1 SC-59BYI

Q202

1

495

#N/A

57G 760 5C

RT1N44HC-T112-1 SC-59BYI

Q201

1

496

#N/A

61L0805000

Chip Resistors 0OHM

R208

1

497

#N/A

61L0805000

Chip Resistors 0OHM

R209

1

498

#N/A

61L0805101

CHIPR -5%1/8W

R912

1

499

#N/A

61L0805102

CHIPR 1K OHM +-5% 1/8W

R924

1

500

#N/A

61L0805102

CHIPR 1K OHM +-5% 1/8W

R931

1

501

#N/A

61L0805102

CHIPR 1K OHM +-5% 1/8W

R932

1

502

#N/A

61L0805103

CHIPR -5%1/8W

R207

1

503

#N/A

61L0805103

CHIPR -5%1/8W

R917

1

504

#N/A

61L0805123

CHIP 12K OHM 1/8W

R206

1

505

#N/A

61L0805123

CHIP 12K OHM 1/8W

R214

1

506

#N/A

61L0805123

CHIP 12K OHM 1/8W

R231

1

507

#N/A

61L0805163

CHIP 16KOHM 1/8W

R205

1

508

#N/A

61L0805203

CHIPR -5% 1/8W

R919

1

509

#N/A

61L0805220

CHIP 22OHM 5% 1/8W

R915

1

510

#N/A

61L0805221

CHIPR 220 OHM +-5% 1/8W

R202

1

511

#N/A

61L0805221

CHIPR 220 OHM +-5% 1/8W

R916

1

512

#N/A

61L0805222

CHIPR 2.2K OHM +-5% 1/8W

R910

1

513

#N/A

61L0805240 1F

CHIPR 2.4KOHM +-1% 1/8W

R201

1

514

#N/A

61L0805240 1F

CHIPR 2.4KOHM +-1% 1/8W

R203

1

515

#N/A

61L0805240 1F

CHIPR 2.4KOHM +-1% 1/8W

R933

1

516

#N/A

61L0805330 2F

CHIP 33KOHM 1/8W/1%

R929

1

517

#N/A

61L0805360 1F

CHIP 3.6KOHM 1/8W 1%

R930

1

518

#N/A

61L0805362

CHIP 306KOHM 1/8W

R911

1

519

#N/A

61L0805471

CHIPR 470 OHM +-5% 1/8W

R204

1

520

#N/A

61L0805471

CHIPR 470 OHM +-5% 1/8W

R230

1

521

#N/A

61L0805472

CHIPR 4.7K OHM +-5% 1/8W

R213

1

522

#N/A

61L0805472

CHIPR 4.7K OHM +-5% 1/8W

R914

1

523

#N/A

61L0805473

CHIPR 47K OHM +-5% 1/8W

R210

1

524

#N/A

61L0805510 2F

CHIP 51KOHM 1/8W 1%

R232

1

525

#N/A

61L0805623

CHIPR 62K OHM +-5% 1/8W

R212

1

526

#N/A

61L0805680

CHIP 68OHM 1/8W

R909

1

527

#N/A

61L0805681

CHIP 680OHM 1/8W

R229

1

528

#N/A

61L0805753

75K 1/8W

R913

1

529

#N/A

61L1206000

CHIPR 0OHM+-5% 1/4W

F902

1

530

#N/A

61L1206000

CHIPR 0OHM+-5% 1/4W

R925

1

531

#N/A

61L1206332

CHIP 3.3KOHM 5% 1/4W

R903

1

532

#N/A

61L1206332

CHIP 3.3KOHM 5% 1/4W

R904

1

533

#N/A

61L1206332

CHIP 3.3KOHM 5% 1/4W

R905

1

534

#N/A

61L1206334

330K 1/4W

R900

1

535

#N/A

61L1206334

330K 1/4W

R901

1

536

#N/A

61L1206334

330K 1/4W

R902

1

537

#N/A

65G0805102 32

CHIP 1000PF 50V X7R 0805

C912

1

538

#N/A

65G0805104 22

CHIP 0.1UF 25VX7R 0805

C201

1

539

#N/A

65G0805104 22

CHIP 0.1UF 25VX7R 0805

C202

1

540

#N/A

65G0805104 22

CHIP 0.1UF 25VX7R 0805

C204

1

541

#N/A

65G0805104 22

CHIP 0.1UF 25VX7R 0805

C208

1

542

#N/A

65G0805104 32

CHIP 0.1UF 50V X7R 0805

C907

1

543

#N/A

65G0805104 32

CHIP 0.1UF 50V X7R 0805

C927

1

544

#N/A

65G0805104 32

CHIP 0.1UF 50V X7R 0805

C928

1

545

#N/A

65G0805104 32

CHIP 0.1UF 50V X7R 0805

C929

1

546

#N/A

65G0805105 22

CHIP 1UF 25V X7R 0805

C205

1

547

#N/A

65G0805105 22

CHIP 1UF 25V X7R 0805

C210

1

548

#N/A

65G0805105 22

CHIP 1UF 25V X7R 0805

C223

1

549

#N/A

65G0805331 31

CHIP 330PF 40V NPO

C207

1

550

#N/A

65G0805471 31

CHIP 470PF 50V NPO

C911

1

551

#N/A

65G0805474 22

CHIP 0.47UF 25V Y5V 0805

C222

1

552

#N/A

65G0805474 22

CHIP 0.47UF 25V Y5V 0805

C932

1

553

#N/A

93G  60264

B340A DO-214AC

D201

1

554

#N/A

93G  6432V

DIODE LL4148 GS08

D210

555

#N/A

93G  6432V

DIODE LL4148 GS08

D903

556

#N/A

93G  6432V

DIODE LL4148 GS08

D923

557

#N/A

93G  6432V

DIODE LL4148 GS08

D924

1

558

#N/A

93G 39S  8  T

RLZ11B LLDS

ZD201

1

559

#N/A

93G 39S 25  T

RLZ5.1B ROHM

ZD902

1

560

#N/A

93G 39S 25  T

RLZ5.1B ROHM

ZD905

1

561

#N/A

93G 39S 38  T

PTZ9.1B ROHM

ZD903

1

562

#N/A

93G 39S 40  T

RLZ13B ROHM

ZD904

1

563

#N/A

93G 39S 44  T

RLZ18B LLDS

ZD901

1

5

9

ViewSonic 

Corporation 

Co

nfidential  

- 

Do 

Not 

Copy 

 

 

 

VG920-1

Содержание VG920-1

Страница 1: ...Model No VS10790 19 Color TFT LCD Display Service Manual ViewSonic VG920 1 ViewSonic 381 Brea Canyon Road Walnut California 91789 USA 800 888 8583 VG920 1_SM Rev 1b Aug 2006...

Страница 2: ...anty 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 hereof without oblig...

Страница 3: ...ription 4 Circuit Description 5 Adjusting Procedure 6 Trouble Shooting Flow Chart 7 Recommended Spare Parts List 8 Exploded View And Exploded Parts List 9 Block Diagram 10 Schematic Diagrams 11 PCB La...

Страница 4: ...itor before cleaning it Clean the cabinet with a clean dry cloth Apply non ammonia based cleaner onto the cloth not directly onto the glass screen Keep the monitor away from magnetic objects motors TV...

Страница 5: ...or the front cover of the monitor Do not touch the surface of the polarizer Surface of the LCD panel is pressed by fingers and that may cause Mura Take out the monitor with cushions Taking out the mo...

Страница 6: ...itor on foreign objects That could scratch the surface of the panel or cause Mura Place the monitor on the lap the panel surface must be upwards The panel is placed facedown on the lap That may cause...

Страница 7: ...E VERTICAL 135 deg CR 10 deg CR 5 Response Time 10 90 Ta 25 C 8 ms Tr 5 6 ms Tf 2 4 ms Typ 12 ms Tr 8 4 ms Tf 3 6 ms Max Panel Defects Please see Panel Quality Specifications 2nd Source Panel BOE HT19...

Страница 8: ...V Pixel Arrangement RGB Vertical Stripe Pixel Pitch 0 294 mm GLASS TREATMENT Anti Glare Hard coating 3H OF BACKLIGHTS 4 CCFL edge light 2 top 2 bottom BACKLIGHT LIFE 40 000 Hours Min 50 000 Hours typ...

Страница 9: ...ive differential input channel 1 11 GND Logic Ground 12 Reserved 12 Reserved No connection 13 Reserved 13 Reserved No connection 14 VCCX Power 15 GND Logic Ground 16 SENS SENSE Pin Pull High 17 RX0 TM...

Страница 10: ...he control screen for the highlighted control Also toggles between two controls on some screens Also a shortcut to toggle analog and digital connection Button 2 Displays the control screen for the hig...

Страница 11: ...an toggle between control screens adjust the selected option or exit the screen 4 To adjust the setting press the up or down T buttons 5 To save the adjustments and exit the menu press button 1 twice...

Страница 12: ...lor adjustment modes including preset color temperatures and a User Color mode which allows independent adjustment of red R green G and blue B The factory setting for this product is 6500K 6500 Kelvin...

Страница 13: ...60Hz recommended means that the resolution is 1280 x 1024 and the refresh rate is 60 Hertz Manual Image Adjust Sub menu H Size Horizontal Size adjusts the width of the screen image H V Position Horizo...

Страница 14: ...OSD Position allows the user to move the OSD menus and control screens OSD Timeout sets the length of time the OSD screen is displayed For example with a 30 second setting if a control is not pushed...

Страница 15: ...de 2 Power Button Lock Press and hold 2 for 10 seconds If the power button is pressed the message Power Button Locked will display for 5 seconds With or without this setting after a power failure your...

Страница 16: ...panel control logic brightness control logic DDC and DC convert DC circuit and so on Power Board Include adapter inverter Flat Panel and CCFL backlight Main Board Key Board RS232 Connector For white...

Страница 17: ...it It changes the 12v DC of power supply to about 600 800v AC that drives the backlight It mostly consists of starting circuit PWM controller DC changing circuit LC surging circuit output circuit and...

Страница 18: ...or DVI interface 4mA driving strength I O w 5V tolerant 37 DDCD_SCL DDC clock for DVI interface Input w 5V tolerant 19 RST Chip reset High reset Input w 5V tolerant 22 RSTN Chip reset Low reset Input...

Страница 19: ...io amplifier IC 3 W efficient driving speakers as low as 8 range of gain from 40dB to 36 dB The function of each pin and the inside circuit diagram are as follows Circuit Diagram 16 ViewSonic Corporat...

Страница 20: ...nd for right channel H bridge PVVCCL 14 15 Power supply for left channel H bridge tied to pins 22 and 23 internally not connected to PVCCR or AVcc PVVCCL 22 23 Power supply for left channel H bridge t...

Страница 21: ...necting an optocoupler to this pin the peak current setpoint is adjusted accordingly to the output power demand Skip cycle occurs when FB falls below Vpin1 3 CS Current sense input This pin senses the...

Страница 22: ...y 2 RT External timing resistor 10 2OUT Output 2 3 1IN Positive input for error amplifier 1 11 2DTC Output 2 dead time soft start setting 4 1IN Positive input for error amplifier 2 12 2FBK Error ampli...

Страница 23: ...4 5 POWER BLOCK FUNCTION DESCRIPTION Inverter Block Function 20 ViewSonic Corporation Confidential Do Not Copy VG920 1...

Страница 24: ...Power Block Function 21 ViewSonic Corporation Confidential Do Not Copy VG920 1...

Страница 25: ...ust 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 F...

Страница 26: ...n 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...

Страница 27: ...nnel 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 y 0 329 0 03 Y 220 20 cd m2 4 Adjust the RED of color3 on factory window until chroma...

Страница 28: ...display modes 640 480 H 43 27kHz V 85Hz 800 600 H 53 7kHz V 85Hz 1024 768 H 68 67kHz V 85Hz 1280 1024 H 79 97kHz V 75Hz 4 Test Display Modes Pattern Compatible Modes Analog Digital 640 x 350 70Hz 31 5...

Страница 29: ...e distinguishable Figure 2 3 Boundary Horizontal Vertical Thickness Horizontal and Vertical position of video should be adjustable to be within the screen frame Figure 3 4 RGB Color Performance RGB Co...

Страница 30: ...l Thickness Pattern R Color Pattern Figure 4 Figure 3 G Color Pattern Figure 5 B Color Pattern Figure 6 Full White Pattern Figure 7 Dark Screen Pattern Figure 8 27 ViewSonic Corporation Confidential D...

Страница 31: ...sure the F W is the latest version DDC Test Pattern EDID program Make sure it can pass test program Fine Tune and Sharpness Test Signal 1280 1024 60Hz Test Pattern Line Moire Pattern Check and see if...

Страница 32: ...he spec Mura Test Pattern White RGB Black Grey Test Tool 10 ND Filter Check if the Mura can pass 10 ND Filter Audio Test Signal Voice signal optional depend on model Test Pattern liberty Make sure the...

Страница 33: ...whether the firmware version is the latest If not please do the following procedures to upgrade it to the latest version 1 Equipment Needed VG720 VG920 Monitor Fixture for Firmware Upgrade Power Adap...

Страница 34: ...itor 2 5 Connect P3 to the Signal Generator eg Chroma2326 for verifying it after the operation being completed 2 6 Connect PC to the additional monitor 3 Firmware Upgrade Procedure Step 1 Let VG720 VG...

Страница 35: ...47 on E2PROM Device Setting flame Step 4 Click Connect button On this step if the connection is successful the Entry ISP Mode Dialog will be showed If not the error dialog will be done Step 5 Click D...

Страница 36: ...r corresponding directory Step 7 Click Auto button Execute the flashing action by clicking the Run button Step 8 If the flashing F W has been completed Ok message will be showed on the right TextBox 3...

Страница 37: ...VG720 VG720 VG920by VGA Cable 3 2 2 Connect P3 of Fixture with DVI port of VG720 by DVI DVI Cable 3 2 3 Connect P1 of Fixture with Printer port of PC by LPT Cable 3 2 4 Plug Power Adapter to Fixture...

Страница 38: ...3 3 DDC Key In Procedure Sep1 Select and execute DDc Key In program 35 ViewSonic Corporation Confidential Do Not Copy VG920 1...

Страница 39: ...Sep2 Inpute the S N and execute Enter 36 ViewSonic Corporation Confidential Do Not Copy VG920 1...

Страница 40: ...37 ViewSonic Corporation Confidential Do Not Copy VG920 1...

Страница 41: ...Sep3 Key the Enter and write the data 38 ViewSonic Corporation Confidential Do Not Copy VG920 1...

Страница 42: ...Sep4 If ddc program OK and show data compare ok 39 ViewSonic Corporation Confidential Do Not Copy VG920 1...

Страница 43: ...5 7 Packing For Shipping 40 ViewSonic Corporation Confidential Do Not Copy VG920 1...

Страница 44: ...L 70G1701709 4B 1 5 QSG 41G7801709 4A 1 6 EPE COVER 45G 88609 4 1 7 MONITOR T980KA6HKGVWABP 1 8 EPE COVER 45G 88609800 1 9 PE BAG 45G 88626 1 1 44G3943 1 1 10 EPS 44G3943 2 1 11 AUDIO CABLE 89G 173 56...

Страница 45: ...fer to the following picture 10 7 Disassemble the 5 screws and 4 pins of the PWPC board remove the PWPC board symbolized the following picture 11 with red color 8 Disassemble the 3 screws and 3 pins o...

Страница 46: ...1 3 Show pictures Picture 1 Picture 2 Picture 3 Picture 4 Picture 5 Picture 6 Picture 7 Picture 8 43 ViewSonic Corporation Confidential Do Not Copy VG920 1...

Страница 47: ...Picture 9 Picture 10 Picture 11 Picture 12 Picture 13 44 ViewSonic Corporation Confidential Do Not Copy VG920 1...

Страница 48: ...Picture 14 Picture 15 Picture 16 Picture 17 Picture 18 Picture 19 Picture 20 45 ViewSonic Corporation Confidential Do Not Copy VG920 1...

Страница 49: ...2 Stand A ssy Disassemble Process Picture 1 Picture 2 Picture 3 Picture 4 Picture 5 Picture 6 46 ViewSonic Corporation Confidential Do Not Copy VG920 1...

Страница 50: ...Picture 7 Picture 8 Picture 9 Picture 10 Picture 11 Pictures 12 47 ViewSonic Corporation Confidential Do Not Copy VG920 1...

Страница 51: ...Picture 13 Picture 14 Picture 15 Picture 16 Picture 17 Picture 18 48 ViewSonic Corporation Confidential Do Not Copy VG920 1...

Страница 52: ...6 Trouble Shooting Flow Chart 49 ViewSonic Corporation Confidential Do Not Copy VG920 1...

Страница 53: ...003777 56G1133 63AA2 U402 1 29 TSUM56AK LF PQFP 100 E 00003742 56G 562108 U401 1 30 HINGE HW 00003778 37G 547 1 1 31 MAIN FRAME HW 00003779 15G8235 1 1 32 SCREW HW 00003746 M1G1030 6225 4 33 SCREW HW...

Страница 54: ...G 562108 U401 1 35 PM25LV010 25SCE AU PANEL E 00003777 56G1133 63AA2 U402 1 36 19 LCD PANEL HYDIS PANEL E 00005169 750GLK90E11 1 37 AIC1084 33PM TO 263 E 00005651 56G 563 7 U702 1 38 19 LCD PANEL HSD...

Страница 55: ...1 30 HW 00003778 37G 547 1 HINGE ASS Y 1 31 DC 00003775 40G 190709 1A ID VG920 1 32 N A 40G 45760819A LABEL 1 33 DC 00003727 40G 459709 1B CARTON LABEL 1 34 DC 00003734 40G 459709 2B S N LABEL 1 35 D...

Страница 56: ...D SMT 102 E 00003740 56G 616 6 ID TPA3003D2PF BRG4 TQFP U601 1 103 E 00003517 61L0603000 CHIPR 0OHM 5 1 10W R602 1 104 N A 61L0603102 CHIPR 1KOHM 5 1 10W R608 1 105 N A 61L0603103 CHIPR 10KOHM 5 1 10W...

Страница 57: ...E 00003739 56G 643 6 IC MICROPROCESSOR MAX810 U406 1 174 N A 56G 643 8 IC ASM810MEURF T SOT 23 U406 1 175 E 00003738 56G1133 34 IC M24C02 WMN6TP U404 1 176 E 00003738 56G1133 34 IC M24C02 WMN6TP U405...

Страница 58: ...241 N A 61L0603103 CHIPR 10KOHM 5 1 10W R451 1 242 N A 61L0603103 CHIPR 10KOHM 5 1 10W R452 1 243 N A 61L0603103 CHIPR 10KOHM 5 1 10W R457 1 244 N A 61L0603103 CHIPR 10KOHM 5 1 10W R459 1 245 N A 61L...

Страница 59: ...32 CHIP 0 1UF 50V X7R C448 1 313 N A 65G0603104 32 CHIP 0 1UF 50V X7R C449 1 314 N A 65G0603104 32 CHIP 0 1UF 50V X7R C450 1 315 N A 65G0603104 32 CHIP 0 1UF 50V X7R C451 1 316 N A 65G0603104 32 CHIP...

Страница 60: ...A 77G 604 2 TO TACT SWITCH SW006 1 385 N A 77G 604 2 TO TACT SWITCH SW007 1 386 N A 77G 604 2 TO TACT SWITCH SW008 1 387 N A 81G 14501 KT KTL HKBGE33B TRB LED001 1 388 N A 715G1602 1 KEPC 1 389 B 000...

Страница 61: ...A 67G215Y4713NV KY16VB470M CC3 8 15MM C926 1 453 N A 67G215Y4713RV LOW E S R 470UF 20 16 C926 1 454 N A 73G 174 64 L LINE FILTER LF 004057 1 L902 1 455 N A 73G 174 64 LS LINE FILTER L902 1 456 N A 73...

Страница 62: ...2 1 526 N A 61L0805680 CHIP 68OHM 1 8W R909 1 527 N A 61L0805681 CHIP 680OHM 1 8W R229 1 528 N A 61L0805753 75K 1 8W R913 1 529 N A 61L1206000 CHIPR 0OHM 5 1 4W F902 1 530 N A 61L1206000 CHIPR 0OHM 5...

Страница 63: ...O 35 D208 1 595 N A 93G 64 1152T DIODE 1N4148 DO 35 D209 1 596 N A 93G1020 752T UF4003PT DO 41 DIODE 1A D902 1 597 N A 95G 90 23 TINCOATEDCOPPER J900 1 598 N A 95G 90 23 TINCOATEDCOPPER J901 1 599 N A...

Страница 64: ...7G 763 12 AOU401L TO 251 Q203 1 641 N A 90G6259 1 HEAT SINK 1 642 N A AM1G1730 6128 SCREW 1 643 N A 705G 980 88 A1 ASS Y 644 N A 51G 200 1 OIL 1 645 N A 51G 200 1 OIL 1 646 N A 57G 761 7 TRANSISTOR KT...

Страница 65: ...1 35 PL 00003759 34G1696 KR B BASE 1 36 PL 00003766 34G1697 KR X SWIVEL COVER 1 37 HW 00003778 37G 547 1 HINGE ASS Y 1 38 DC 00005812 40G 45760819A MODEL LABEL 1 39 DC 00003727 40G 459709 1B CARTON LA...

Страница 66: ...1 93 HW 00005628 M1G1730 6128 SCREW 2 94 HW 00005628 M1G1730 6128 SCREW 3 95 HW 00005628 M1G1730 6128 SCREW 4 96 HW 00003780 M1G2940 10225 M4 10 4 97 N A Q1G 130 6 47 SCREW 3 98 N A Q1G 130 8120 SCREW...

Страница 67: ...Model Title Date Rev ViewSonic Corporation 64 ViewSonic Corporation Confidential Do Not Copy VG920 1 8 Exploded Diagram and Exploded Parts List...

Страница 68: ...ON BRACKET 1 10 N A 52G6025 11 907 MYLAR SHEET TOP 1 11 N A 52G6025 11 908 MYLAR SHEET BOTTOM 1 12 N A 23G3178709 6A BIRD LOGO E015 006 1 13 N A 23G3178709 4A VIEWSONIC LOGO E015 016 1 1 14 N A 11G800...

Страница 69: ...ASE 1 7 N A 34G1697 KR X SMIVEL COVER 1 8 N A 33G4917 KR X ROLLER 4 9 N A 33G4918 KR X CABLE CLIP 2 10 N A 37G547 1 HINGE 1 11 N A 20G036 1 BASE DIECASTING 1 12 N A 15G8237 1 VESA PLATE 1 13 N A 15G80...

Страница 70: ...9 Block Diagram Scaler TSUM56AK Include ADC OSD MCU etc Flash 67 ViewSonic Corporation Confidential Do Not Copy VG920 1...

Страница 71: ...712 4 7K 1 16W R715 NC R710 NC 12 21 MODIFY R706 NC C719 NC 10uF 16V R722 NC 5V 3 4 R719 NC 10K Q703 PMBS3904 TO 263 R701 1K 1 16W C707 100uF 25V R726 NC 4K7 D704 SSM12L Vf 0 38V and If 1A So when sys...

Страница 72: ..._P23 74 AVDD_PLL 52 AVDD_MPLL 34 AVDD_MPLL 4 VDDP 95 VDDP 103 VDDP 115 VDDC 117 AVDD_ADC 60 GND 13 U401 TSUM57AK C423 22pF GND 1 RST 2 VCC 3 U406 ASM810MEURF T R486 NC PB11 X401 14 318MHz Volume C421...

Страница 73: ...6V R445 100 1 16W 3 1 2 D417 BAV99 R449 2 2K 1 16W 3 1 2 D413 BAV70 3 1 2 D418 BAV99 D416 LL5232B 5 6V 5 R470 1K 1 16W C445 0 1uF R446 1K 1 16W R438 75 1 16W R444 10K 1 16W C439 0 1uF R441 100 1 16W...

Страница 74: ...1uF 25V R232 51K 1 10W R202 220 1 10W R210 47K 1 10W ON OFF R228 1K 1 4W C214 12pF 3KV CN201 CONN 1 2 TP1 HVO 1 12V R223 1 8K 1 4W R203 2 4K 1 10W is power GND D207 1N4148 D206 1N4148 D202 1N4148 R22...

Страница 75: ...B 1 2 3 5V R925 0 1 8W IC903 KIA431A AT P D923 LL4148 GS08 Q902 2PA733P 1 3 2 R900 330K 1 8W ZD901 RLZ18B 1 2 D901 BA159GPT R932 1K 1 10W R917 10K 1 10W R915 22 1 10W R918 0 39 2W R933 2 4K 1 10W C905...

Страница 76: ...600 OHM C628 0 1uF 16V C621 0 1uF 16V C607 0 01uF C626 0 01uF C629 0 01uF C613 1uF 16V C614 1uF 16V C616 1uF 16V C619 1uF 16V C623 1uF 16V 5 4 1 3 2 CN601 PHONEJACK C624 1uF 16V C610 1uF 16V FB605 600...

Страница 77: ...KEY UP GND VOLUME VOLUME LED ORANGE MUTE LED GREEN 1 2 3 4 5 6 7 8 9 10 11 CN001 CONN SW003 SW SW004 SW SW005 SW SW006 SW SW007 SW SW008 SW SW002 SW GND Model Title Date Rev ViewSonic Corporation KEY...

Страница 78: ...11 PCB Layout Diagram 11 1 MAIN BOARD PCB TOP VIEW 75 ViewSonic Corporation Confidential Do Not Copy VG920 1...

Страница 79: ...11 2 MAIN BOARD PCB BUTTON VIEW 76 ViewSonic Corporation Confidential Do Not Copy VG920 1...

Страница 80: ...11 3 KEYBOARD TOP VIEW 11 4 KEYBOARD BUTTON VIEW 77 ViewSonic Corporation Confidential Do Not Copy VG920 1...

Страница 81: ...11 5 POWER PCB TOP VIEW 78 ViewSonic Corporation Confidential Do Not Copy VG920 1...

Страница 82: ...11 6 POWER PCB BUTTON VIEW 79 ViewSonic Corporation Confidential Do Not Copy VG920 1...

Страница 83: ...11 7 AUDIO PCB TOP VIEW 80 ViewSonic Corporation Confidential Do Not Copy VG920 1...

Страница 84: ...11 8 AUDIO PCB BUTTON VIEW 81 ViewSonic Corporation Confidential Do Not Copy VG920 1...

Страница 85: ...uit Description 5 Adjustment Procedure 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 Diagr...

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