background image

Item

ViewSonic P/N

Ref. P/N

Description

Location

Universal number#

Q'ty

588 E-L-0407-1190

2922350506

COIL PEAKING .47uH K TP AXIAL 0307

L607,L608,L609

CP-0370AT-R47K

3

589

#N/A

2970044301

PWB S0 FR-1(XPC) 250MM*330MM

1

590 M-SW-0815-0151

3000091800

SWITCH TACTILE DC 12V 50mA

SW305

0

591 M-SW-0815-0176

3000091816

SWITCH TACTILE DC 12V 50mA

SW305

SKHHLM1510

5

592 M-SW-0815-0202

3000091820

SWITCH TACTILE DC 15V 50mA

SW305

TSVB-2-D

0

593 M-SW-0815-0156

3000140416

SWITCH PUSH SPST DC30V 0.3A

SPPJ22NE01-TA

0

594 M-SW-0815-0193

3000140420

SWITCH PUSH SPST DC30V 0.3A

PS2

0

595 M-SW-0815-0164

3000140426

SWITCH PUSH SPST DC30V 0.3A

1

596 M-MS-0808-6069

3020005436

SOCKET CRT NORMAL DOUBLE FOCUS

X601

SFCCB09120-TA

1

597 M-MS-0808-6872

3020005439

SOCKET CRT NORMAL DOUBLE FOCUS

X601

GZS10-302A

0

598 M-MS-0808-6790

3020603638

SOCKET AC PWB MOUNT INPUT 10A 250V

SA-4S-020

1

599 M-MS-0808-7802

3070023934

HEADER NY66 94V0 7P P2.5

P301

A2501WV2-7P

1

600 M-MS-0808-7506

3071315634

HEADER NY66 94V0 6PIN

P601

1

601 M-MS-0808-5076

3071315734

HEADER NY66 94V0 7P P2.5 W/BOSS

P301

A2501WV2-7P-BS

0

602 M-MS-0808-5378

3071406334

HEADER NY66 94V0 3P P2.5

P201

A2502WV2-3P

1

603 A-VC-0101-0349

3080424800

CABLE D-SUB/HOUSING L1830 BLK OD6

1

604 M-SCW-0824-0391 3100300800

SCREW M M3*0.5*8 PAN C S+P S20C ZN

1

605 M-SCW-0824-0004 3100301000

SCREW M M3*0.5*10 PAN C S+P S20C Z

6

606 M-SCW-0824-0433 3100301200

SCREW M M3*0.5*12 PAN C S+P S20C Z

1

607 M-SCW-0824-0461 3106150400

SCREW T M3.5*1*8 PAN C S18C ZN YEL

2

608 M-SCW-0824-0411 3109010300

SCREW T M3*0.5*10 BIND C S18C ZN Y

1

609 M-SCW-0824-0784 3109010700

SCREW T M3*0.5*7 PAN C S+P S20C ZN

1

610 M-SCW-0824-0413 3109011400

SCREW T M3*0.5*6 BIND C S18C ZN YE

2

611 M-SCW-0824-0620 3109020500

SCREW T  p4*1.6*10 PAN C S18C ZN Y

1

612 M-SCW-0824-0393 3109020700

SCREW T M4*0.7*8 PAN C S S18C ZN

1

613 M-MS-0808-7326

3110110400

NUT M3*0.5 S1010C

2

614

#N/A

3227000100

TUBE HS POLYOLEFIN 7*.25 BLACK

VERAFIT 7*2.5 BLK

0.015

615 M-MS-0808-5739

3227001900

TUBE HS POLYOLEFIN 5*.25 BLACK

VERSAFIT 5*0.25 BLK

0.02

616 M-MS-0808-7803

3240291900

INSULATOR SIRUB 12*26 T.275

1

617

#N/A

3341061200

HSK AL T1.4 23.5*55.4

HS201

1

618 M-MS-0808-7311

3341159002

HSK AL T=2.5 85*47 I

HS101

1

619

#N/A

3342603800

HSK PLATE AL1100F PICKLING T2 187*

1

620

#N/A

3342700305

HSK AL T=1 84.5*35 I

HS601

1

621 M-MS-0808-8237

3350141100

RIVET BRASS TIN PLATED 1.8*3.7*3

2

622 M-MS-0808-5111

3350141900

RIVET BRASS TIN PLATED 1.5*3.2*3

9

623 M-MS-0808-5112

3350143000

RIVET BRASS TIN PLATED 1.2*3*3

9

624 M-MS-0808-5119

3350252200

PIN ROUND BRONZE 2.36*13.8 TIN PLA

0

625 M-MS-0808-4828

3360053201

LED HOLDER NY66 NAT

1

626 M-WR-0828-0344

3411000200

JUMP WIRE COPPER 0.6*5.0*4.0

JW403

7

627 M-WR-0828-0402

4010670000

WIRE CU 0.6 TNC

0.131

628 M-WR-0828-0224

3411000300

JUMP WIRE COPPER 0.6*7.5*4.0

J105,J420,JW601,R205

8

629 M-WR-0828-0402

4010670000

WIRE CU 0.6 TNC

0.131

630 M-WR-0828-0249

3411000400

JUMP WIRE COPPER 0.6*10.0*4.0

J210,J406,J411,J436,

5

631 M-WR-0828-0402

4010670000

WIRE CU 0.6 TNC

0.131

632

#N/A

3411000500

JUMP WIRE COPPER 0.6*12.5*4.0

J404,J407,J610,R401,

8

633 M-WR-0828-0402

4010670000

WIRE CU 0.6 TNC

0.131

634 M-WR-0828-0388

3411000600

JUMP WIRE COPPER 0.6*15.0*4.0

J333

1

635 M-WR-0828-0402

4010670000

WIRE CU 0.6 TNC

0.131

636 M-WR-0828-0389

3411000700

JUMP WIRE COPPER 0.6*17.5*4.0

J410,J423

9

637 M-WR-0828-0402

4010670000

WIRE CU 0.6 TNC

0.131

638 M-WR-0828-0390

3411000800

JUMP WIRE COPPER 0.6*20.0*4.0

J430,J440,R107

6

639 M-WR-0828-0402

4010670000

WIRE CU 0.6 TNC

0.131

640

#N/A

3411004203

JUMP WIRE COPPER 0.6*6.0*4.0

J605

1

641 M-WR-0828-0402

4010670000

WIRE CU 0.6 TNC

0.131

642 PL-CL-0710-0026

3420003302

CLIP FIXING SECC 30*10 T=1.5

1

643 M-MS-0808-5123

3429009300

CLIP TIN SPTH 32*7  T=0.3

1

644 M-MS-0808-7487

3429019600

CLIP TIN SPTH 30.5*7  T=0.3

1

645 M-MS-0808-7513

3460103202

BRACKET REAR SECC 67*55 T=1

1

646 M-MS-0808-9038

3461230101

SHIELD CAN VIDEO SPTE 95*95 T.3

1

647

#N/A

3641058200

WIRE WITH TERMINAL 1007 #18 GEN L3

1

648 M-WR-0828-0748

3641312100

WIRE WITH TERMINAL 1007 #18 BLK L1

1

649 M-WR-0828-5990

3642422902

WIRE WITH TERMINAL 1015 #18 Y/G L9

1

650

#N/A

3679018700

WIRE WITH HOUSING 1007 #24 7+5P

1

651 M-MS-0808-5153

4020208200

FLUX ROSIN 800 NO CLEAN

800 NO CLEAN

9.5

652 M-MS-0808-5154

4020208300

THINNER OF ROSIN 800 ADDITIV

800 ADDITIVE

1.36

653

#N/A

4090001000

SOLDER WIRE 50/50 1.6mm

3

654

#N/A

4090002100

SOLDER WIRE 63/37 1.0mm

2.5

655 M-MS-0808-5358

4090002400

SOLDER BAR 63/37

5.4

 

 

 

56

ViewSonic 

Corporation 

Co

nfidential

 

Do 

Not 

Copy  

 

 

 

A91f+-1

Summary of Contents for A91f+-1

Page 1: ...Model No VCDTS23283 19 Digital Controlled Color Monitor Service Manual ViewSonic A91f 1 ViewSonic 381 Brea Canyon Road Walnut California 91789 USA 800 888 8583 A91f 1_SM_830 Rev 1a Apr 2004...

Page 2: ...ereof and specifically 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...

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

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: ...DIATION 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 precau...

Page 6: ...POWER CORD 1 8 METER 2 1 8 SIGNAL CABLE 1 8 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 DAMAGE TO MONIT...

Page 7: ...V SIZE PINCUSION PINBALANCE TRAPEZOID PARALLELOGRAM ROTATION 9300O K 6500O K 5000O K USER R G B LANGUAGES ENGLISH DEUTSCH FRANCAIS ESPANOL ITALIC H MOIRE V MOIRE OSD H POSITION OSD V POSITION INPUT L...

Page 8: ...ON 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: ...NEARITY 12 x 10 INPUT SIGNAL BLOCK PATTERN V LINEARITY Xmax Xmax Ymax Ymax Xmin Ymin Ymin Xmin X 100 H LINEARITY X 100 4 4 WORSE CASE 5 4 7 PICTURE DISTORTION 4 7 1 TRAPEZOID PARALLELOGRAM 4 7 2 PINCU...

Page 10: ...020 Y 0 359 0 020 PICTURE 357mm 268mm ZONE A 0 25mm ZONE B 0 30mm B ZONE C 0 35mm C A 4 11 2 COLOR PURITY IMPURITY SHOULD NOT APPEAR IN THE PATTERN OF ALL GREEN ALL RED ALL BLUE OR ALL WHITE 4 11 3 CO...

Page 11: ...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 GROWTH FROM MINIMUM LIGHT OUTPUT TO MAXIMUM LIGHT...

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 m...

Page 13: ...TIBLE 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 BA...

Page 14: ...2 222 80 3 232 160 2 460 160 2 702 152 2 235 176 D H ACTIVE US PIXELS 25 422 640 25 422 640 17 778 640 16 162 800 15 75 1024 14 222 800 13 003 1024 E H FRONT PORCH US PIXELS 0 636 16 0 318 8 1 556 56...

Page 15: ...201 208 1 837 248 1 877 304 3 175 96 3 911 224 2 20 176 D H ACTIVE US PIXELS 10 836 1024 9 481 1280 9 877 1600 21 164 640 14 528 832 12 8 1024 E H FRONT PORCH US PIXELS 0 0 0 119 16 0 395 64 2 116 64...

Page 16: ...20 20 20 20 00 05 ___________________ _______________________________ EDID DATA for LG CRT TIME 09 45 14 DATE FEB 12 2004 VIEWSONIC CORPORATION EDID VERSION 1 REVISION 3 DDCTEST FOR VIEWSONIC A91F 12...

Page 17: ...wer switch Soft power control Function select button Adjustment control button Control name 1 Power switch Push on push off switch for soft power control 2 LED indication Status LED Power on Green Off...

Page 18: ...immediately Function select buttons Adjustment control buttons Power switch a b c d Power ON indication 1 2 1 2 B OSD on screen display function control method Main menu Part 1 1 Contrast Brightness...

Page 19: ...down 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 B...

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 c...

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

Page 22: ...dary 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 D203 D214 C202 c TP203 volta...

Page 23: ...in1and pin7 b IC401 pin3 pin7 outputs to vertical hold in range is controlled by pin22 C440 2 1 3 B control Take a pulse from T403 pin2 and accumulates to become a DC voltage via Q409 Q401 Q402 R418 a...

Page 24: ...output circuit Horizontal output circuit is composed by Q407 Horizontal Transistor CRT YOKE D406 C418 and C419 H output circuit H Driver circuit output via T4401to switch Q407 ON OFF to output saw too...

Page 25: ...be low enough to turn on Q4406 then the voltage of pin12 of IC601 will be pulled down accordingly to reduce the video preamplifier gain output 4 4 Brightness Control Brightness is controlled by varyi...

Page 26: ...Low to Hi and active Mute function Normal Active Mute L H SUS H L Off mode PD H L Off mode IC301 pin17 SUS function as LED control the mode is as listed Power On Power saving Over range freq Pin17 Hi...

Page 27: ...1 2 3 4 5 6 24 ViewSonic Corporation Confidential Do Not Copy A91f 1...

Page 28: ...7 8 9 10 11 12 25 ViewSonic Corporation Confidential Do Not Copy A91f 1...

Page 29: ...13 14 15 16 17 18 26 ViewSonic Corporation Confidential Do Not Copy A91f 1...

Page 30: ...19 20 21 22 23 24 27 ViewSonic Corporation Confidential Do Not Copy A91f 1...

Page 31: ...25 26 27 28 29 30 28 ViewSonic Corporation Confidential Do Not Copy A91f 1...

Page 32: ...31 32 33 34 35 36 29 ViewSonic Corporation Confidential Do Not Copy A91f 1...

Page 33: ...37 38 39 40 41 42 30 ViewSonic Corporation Confidential Do Not Copy A91f 1...

Page 34: ...43 44 45 46 47 48 31 ViewSonic Corporation Confidential Do Not Copy A91f 1...

Page 35: ...49 50 51 52 53 54 32 ViewSonic Corporation Confidential Do Not Copy A91f 1...

Page 36: ...55 56 57 58 33 ViewSonic Corporation Confidential Do Not Copy A91f 1...

Page 37: ...en 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 of...

Page 38: ...0FL adjust screen just raster visible 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...

Page 39: ...allelogram 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 T...

Page 40: ...Apply 70mmx70mm green window pattern adjust G Driver to obtain green window pattern light O P about 32 FL 6500 K 5000 K 4 8 Apply white window pattern adjust R Driver B Driver to meet following chroma...

Page 41: ...C PCB defined 38 ViewSonic Corporation Confidential Do Not Copy A91f 1...

Page 42: ...adjustment 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 Driv...

Page 43: ...Pull 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 40 View...

Page 44: ...Press 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...

Page 45: ...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 O...

Page 46: ...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 Chec...

Page 47: ...s the waveform of Q401 BASE normal Is the horizontal output circut normal Is the voltage on terminal TP201 75V Check power supply circuit Check H sync input Q402 is defective Horizontal drive is defec...

Page 48: ...n the FBT screen clockwise FBT is defective R4444 D4410 are defective Is the voltage at the heater pin10 of CRT socket normal D206 Q208 R226 are defective Heater voltage approx 6 3V Bright circuit Q44...

Page 49: ...Yoke Is the waveform at pin5 of IC501 normal R502 is defective Check V sync of IC301 pin32 or signal cable Is the IC501 pin2 13V pin4 11V Is the waveform of IC401 pin21 pin23 normal Are R502 normal C...

Page 50: ...e raster don t appear Check the signal cable or computer IC601 its buffer or its drive circuit clamping pulse blanking pulse is defective Video optput circuit defective IC603 pin1 pin2 pin3 CRT drive...

Page 51: ...ERT DEFLECTION SIP 10P IC501 KA2142 4 weeks 12 E IC 0401 2947 2530209026 IC MASK OSD CONTROLLER SKINNY 28P IC601 NT6813K 28 30001 4 weeks 13 E IC 0401 2556 2500113511 IC MONO TRIPLE 7 5nS CRT DRIVER T...

Page 52: ...N A 4020363808 PLASTIC ABS 94V0 EP32 AF 312 AF 312 EP32 0 42 N A 4020363809 PLASTIC ABS 94V0 EP32 VH 0810 VH 0810 EP32 0 43 N A 4020363814 PLASTIC ABS 94V0 EP32 PA 765A PA 765A EP32 0 002 44 N A 4020...

Page 53: ...123 E R 0405 5738 13363800 RES CF 1 4W 36K J SMALL R513 RD16ST52 36K J 1 124 E R 0405 5826 13392800 RES CF 1 4W 3 9K J SMALL R446 RD16ST52 3 9K 1 125 E R 0405 5742 13394800 RES CF 1 4W 390K J SMALL R6...

Page 54: ...SE TSC 4A 250V UL SEM PIG F101 0215004 MRET5 1 212 E FS 0410 0098 805340704 FUSE TSC 4A 250V UL SEM PIG F101 181 4A 19265 0 213 M MS 0808 7471 900030118 RES PTC R 8 OHM 20 27A 2P PTC101 DGC2R08M 1 214...

Page 55: ...0MT 0 292 E C 0404 4041 142162201200S CAP AL 50V 22U M 5 12 TP5 C114 C432 0110050226VM4 0 293 N A 142162201500 CAP AL 50V 22U M 5 11 TP5 C114 C432 UVR1H220MT 2 294 E C 0404 4942 142162281200S CAP AL 5...

Page 56: ...744 201311080023 DIO FRD 2A 300V DO 204AC DO 15 50 D204 EGP20F 1 377 E D 0403 2025 201330630007 DIO FRD 1A 1000V SOD57 75nS D202 BYV26E 133 0 378 E D 0403 0832 202300290105 DIO SBD 1A 20V CASE59 04 DO...

Page 57: ...125 4120503600 CORE FERI EE19 2F8 U2200 EE19 2F8 0 459 E L 0407 1127 4120504700 CORE FERI EE19 TP3 UI 2500 EE19 TP3 1 460 E L 0407 1128 4120505000 CORE FERI EE19 PM7 UI 2400 EE1916 PM7 0 461 N A 41205...

Page 58: ...FERI SP24 TL7 UI 7000 ET24 TL7 1 547 N A 2836046100 3132010300 4157031500 ASS Y 1 548 M MS 0808 5085 3132010300 BOBBIN PBT 94V 0 2 549 E L 0407 1445 4157031500 CORE FERI SP24 JFH2 SP24 JFH2 1 550 M MS...

Page 59: ...8 M MS 0808 7311 3341159002 HSK AL T 2 5 85 47 I HS101 1 619 N A 3342603800 HSK PLATE AL1100F PICKLING T2 187 1 620 N A 3342700305 HSK AL T 1 84 5 35 I HS601 1 621 M MS 0808 8237 3350141100 RIVET BRAS...

Page 60: ...57 ViewSonic Corporation Confidential Do Not Copy A91f 1 8 Exploded Diagram And Spare Parts List...

Page 61: ...AT 17 M SW 0815 0176 3000091816 SWITCH TACTILE DC 12V 50mA 18 E D 0403 1199 2300062706 LED 5mm ORG GRN 3PIN 19 M MS 0808 4828 3360053201 LED HOLDER NY66 NAT 20 M SW 0815 0164 3000140426 SWITCH PUSH SP...

Page 62: ...59 ViewSonic Corporation Confidential Do Not Copy A91f 1...

Page 63: ...60 ViewSonic Corporation Confidential Do Not Copy A91f 1...

Page 64: ...61 ViewSonic Corporation Confidential Do Not Copy A91f 1...

Page 65: ...62 ViewSonic Corporation Confidential Do Not Copy A91f 1...

Page 66: ...63 ViewSonic Corporation Confidential Do Not Copy A91f 1...

Page 67: ...64 ViewSonic Corporation Confidential Do Not Copy A91f 1...

Page 68: ...65 ViewSonic Corporation Confidential Do Not Copy A91f 1...

Page 69: ...66 ViewSonic Corporation Confidential Do Not Copy A91f 1...

Page 70: ...67 ViewSonic Corporation Confidential Do Not Copy A91f 1...

Page 71: ...68 ViewSonic Corporation Confidential Do Not Copy A91f 1...

Page 72: ...69 ViewSonic Corporation Confidential Do Not Copy A91f 1...

Page 73: ...70 ViewSonic Corporation Confidential Do Not Copy A91f 1...

Page 74: ...71 ViewSonic Corporation Confidential Do Not Copy A91f 1...

Page 75: ...72 ViewSonic Corporation Confidential Do Not Copy A91f 1...

Page 76: ......

Page 77: ......

Page 78: ......

Page 79: ......

Page 80: ......

Page 81: ......

Page 82: ...79 ViewSonic Corporation Confidential Do Not Copy A91f 1...

Page 83: ...ng A91f 1 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...

Reviews: