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Mitsubishi DPLUS 74SB -BKB, Service Manual

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Mitsubishi DPLUS 74SB -BKB Service Manual Download Page 134

7-33

4. Horizontal drive and power supply output

 Circuit Diagram

Description of the circuit:

1) R1, T1 and Q2 compose the horizontal driving circuit, and transistor Q1 generates a horizontal output

through the driving signal.

IB1 = I

CPMAX 

/ Q1h

feMIN

I

B2 

 = 3I

B1

di/dt = 3.3 A/

US

2) Resistor R2 corrects the current IB1, resistor R3 works as a damping resistor and leak resistor and

diode D2 works as a discharging device and polar body.
As long as transistor Q1 is OFF, the discharge is accelerated and the storage time (Tstg) is short-
ened.

3) H-OUT circuit wavefor

 

VCC 

T1 

R2 

D2 

R1 

Q2 

R3 

Q1 

CT 

D1 

DR 

CS 

B+ 

C2 

+ 

Summary of Contents for DPLUS 74SB -BKB

Page 1: ...PART NO 599910587 COLOR MONITOR Diamond Plus 74SB MODELS DPLUS 74SB BK A B 200205 08109736 08109696 SERVICE MANUAL NEC MITSUBISHI ELECTRIC VISUAL SYSTEMS CORPORATION MAY 2002 ...

Page 2: ...nected only to a properly grounded AC outlet This equipment utilized a micro gap power switch Turn off the set by first pushing the front panel power switch Next remove the power cord from the AC outlet To prevent fire or shock hazards do not expose this unit to rain or moisture This symbol warns the personnel that un insulated voltage within the unit may have sufficient magnitude to cause electri...

Page 3: ...n and improper contacts may occur when wires of the connector are led 7 Use a proper screwdriver If you use screwdriver that does not fit you may damage the screws 8 X radiation precaution This product contains critical electrical and mechanical parts essential for X ray protection Normal anode voltage is 25 5 kV at zero beam picture tube current under AC 100 120V 220 240V input and anode voltage ...

Page 4: ...USER S MANUAL 1 1 SERIAL NUMBER INFORMATION 2 1 DISASSEMBLY 3 1 ADJUSTMENT PROCEDURES 4 1 INSPECTION 5 1 TROUBLE SHOOTING 6 1 CIRCUIT DESCRIPTION 7 1 REPLACEMENT PARTS LIST 8 1 BLOCK DIAGRAMS 9 1 SCHEMATIC DIAGRAMS 10 1 ...

Page 5: ...1 1 User s Manual 1 A Version www mitsubishidisplay com 17 Diamond Plus 74SB 16 Viewable Image Size 16 Viewable Image Size USER S MANUAL ...

Page 6: ...tions 10 Features 12 Troubleshooting 14 References 15 Limited Warranty 16 TCO 95 17 Avertissement 19 Contenu 20 Mise en marche rapide 21 Commandes 22 Usage recommandé 26 Fiche technique 28 Fonctions 29 Dépannage 31 Références 32 Garantie limitée 33 TCO 95 34 Sicherheitsvorkehrungen 36 ...

Page 7: ...ence will not occur in a particular installation If this equipment does cause harmful interference to radio or televisionreception whichcanbedeterminedbyturningtheequipmentoffandon theuser is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipme...

Page 8: ...t swivel base Power Cord Captive Signal Cable User s Manual Contents Power Cord User s Manual Remember to save your original box and packing material to transport or ship the monitor Captive Signal Cable www mitsubishidisplay com 17 Diamond Plus 74SB 16 Viewable Image Size 16 Viewable Image Size USER S MANUAL ...

Page 9: ...UB end of the captive signal cable to the Diamond Plus Macintosh cable adapter on the computer Figure B 1 Tighten all screws NOTE To obtain the Diamond Plus 74SB Macintosh cable adapter call NEC Mitsubishi Electronics Display of America Inc at 800 632 4662 4 For download information on the Windows 95 98 Me 2000 XP INF file for your Diamond Plus monitor refer to the References section of this User ...

Page 10: ...1 6 4 Quick Start continued Figure D 1 Figure C 1 Power Button ...

Page 11: ...el the reset function NOTE In SB MODE SuperBright Mode ON and OFF is functional when the OSM is not displayed Brightness Contrast Controls Brightness Adjusts the overall image and background screen brightness Contrast Adjusts the image brightness in relation to the background Degauss Eliminates the buildup of stray magnetic fields which alter the correct scan of the electron beams and affect the p...

Page 12: ...shion balance Decreases or increases the curvature of the sides either to the left or right Sides Tilt parallelogram Decreases or increases the tilt of the sides either to the left or right Sides Align trapezoidal Decreases or increases the bottom of the screen to be the same as the top Rotate raster rotation Rotates the entire display clockwise or counterclockwise Tools 1 Moiré Canceler Moiré is ...

Page 13: ...ystem is not used NOTE For standard systems and graphics boards keep the factory setting at ENABLE Factory Preset Selecting Factory Preset allows you a reset most OSM control settings back to the factory settings A warning statement will appear to confirm that you do want to reset ALL settings Individual settings can be reset by high lighting the control to be reset and pressing the RESET button I...

Page 14: ... cord with molded plug having a black 5A fuse installed for use with this monitor If a power cord is not supplied with this monitor please contact your supplier Cleaning Your Monitor A special coating is provided on the glass CRT surface of this monitor to reduce a reflection and static electricity on the glass surface Due to the delicate coating on the glass surface use a lint free non abrasive c...

Page 15: ...ast controls to enhance readability Use a document holder placed close to the screen Position whatever you are looking at most of the time the screen or reference material directly in front of you to minimize turning your head while you are typing Get regular eye checkups Ergonomics To realize the maximum ergonomics benefits we recommend the following Adjust the Brightness until the background ras...

Page 16: ...0 Hz all modes listed vertical frequencies only 832 x 624 50 to 106 Hz 1024 x 768 50 to 87 Hz NEC Mitsubishi Electronics Display cites 1152 x 864 50 to 77 Hz recommended resolution at 85 Hz for 1280 x 1024 50 to 66 Hz optimal display performance Active Display Area Horizontal 315 mm 12 4 inches Dependent upon signal timing used Factory Setting Vertical 236 mm 9 3 inches and does not include border...

Page 17: ...elps achieve a consistent color environment with other sRGB enabled hardware and software applications On Screen Manager OSMTM Controls Allows you to quickly and easily adjust all elements of your screen image via simple to use on screen menus ErgoDesign Features Enhances human ergonomics to improve the working environment protect the health of the user and save money Examples include OSM controls...

Page 18: ...display card s scanning frequency thus displaying the resolution required FullScan Capability Allows you to use the entire screen area in most resolutions significantly expanding image size Copyright 2002 by NEC Mitsubishi Electronics Display of America Inc Features continued ...

Page 19: ...d elapse before the Deguass Control is used a second time when not switching between modes Picture bounces or a wavy pattern is present in the picture Move electrical devices that may be causing electrical interference away from the monitor See inside cover of User s Manual for FCC information Edges of the display image are not square Use the OSM Geometry Controls to straighten the edges If possib...

Page 20: ...productregistration European Operations http www nec monitors com Windows 95 98 Me 2000 XP INF File http support necmitsubishi com software htm FastFacts Information 800 366 0476 INFORMATION DESCRIPTION DOCUMENT Glossary Definition of terms related 900203 to functions features and installation of the DP monitor More Information Names and addresses of 900204 other groups involved in standards and f...

Page 21: ...service MUST have prior approval which may be obtained by calling 1 800 632 4662 The Product shall not have been previously altered repaired or serviced by anyone other than a service facility authorized by NMD A to render such service the serial number of the product shall not have been altered or removed In order to be covered by this warranty the Product shall not have been subjected to display...

Page 22: ... was developed as a joint effort by the TCO The Swedish Confederation of Professional Employees Naturskyddsforeningen The Swedish Society for Nature Conservation and NUTEK The National Board for Industrial and Technical Development in Sweden The requirements cover a wide range of issues environment ergonomics usability emission of electrical and magnetic fields energy consumption and electrical an...

Page 23: ...rement states that batteries may not contain more than 25 ppm parts per million of mercury It also demands that no mercury is present in any of the electrical or electronics components concerned with the display unit Mercury is for the time being permitted in the back lightsystemofflatpanelmonitorsastheretodayisnocommerciallyavailablealternative TCOaims on removing this exception when a mercury fr...

Page 24: ... Diamond Plus 74SB is in compliance with Council Directive 73 23 EEC EN 60950 Council Directive 89 336 EEC EN 55022 EN 61000 3 2 EN 61000 3 3 EN 55024 and marked with NEC Mitsubishi Electric Visual Systems Corporation 686 1 Nishioi Oi Machi Ashigarakami gun Kanagawa 258 8533 Japan ...

Page 25: ...e at any time without notice Reproduction of this document or portions thereof without prior approval of NEC Mitsubishi Electronics Display of America is prohibited DECLARATION OF CONFORMITY This device complies with Part 15 of FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 this device must accept any interference received incl...

Page 26: ...1 22 2 B Version USER S MANUAL www nec mitsubishi com ...

Page 27: ...er NEC Mitsubishi Electronics Display of America Inc has determined that this product meets the ENERGYSTAR guidelines for energy efficiency The ENERGYSTAR emblem does not represent EPA endorsement of any product or service IBM is registered trademark of International Business Machines Corporation Apple and Macintosh are registered trademarks of Apple Computer Inc Microsoft and Windows are register...

Page 28: ...ation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by tu...

Page 29: ...ond Plus 74SB monitor box should contain the following Diamond Plus 74SB Monitor with tilt swivel base Power Cord Captive Signal Cable User s Manual CD ROM with Setup Software complete User s Manual and other helpful files To see the User s Manual Acrobat Reader 4 0 must be installed on your PC Power Cord User s Manual Captive Signal Cable ...

Page 30: ...ct the Diamond Plus 74SB Macintosh cable adapter not included to the monitor connector on the Macintosh Figure B 1 Attach the 15 pin mini D SUB end of the captive signal cable to the Diamond Plus 74SB Macintosh cable adapter on the computer Figure B 1 Tighten all screws 4 Connect one end of the power cord to the Diamond Plus 74SB monitor and the other end to the power outlet Figure C 1 5 Turn on t...

Page 31: ...1 27 Quick Start continued 6 User s Manual Figure C 1 Power Outlet Power Cord Power Button Figure D 1 ...

Page 32: ... n o c M S O e h t o t s t i x E u n e m n i a m L O R T N O C d e t h g i l h g i h e h t s e v o M t c e l e s o t t h g i r t f e l a e r a s u n e m b u s e h t f o e n o a e r a d e t h g i l h g i h e h t s e v o M e h t f o e n o t c e l e s o t t h g i r t f e l s l o r t n o c L O R T N O C n o i t c n u f o n s a H r o e h t n i r a b e h t s e v o M r o e s a e r c e d o t n o i t c e r...

Page 33: ...des Left Right pincushion balance Decreases or increases the curvature of the sides either to the left or right Sides Tilt parallelogram Decreases or increases the tilt of the sides either to the left or right Sides Align trapezoidal Decreases or increases the bottom of the screen to be the same as the top Rotate raster rotation Rotates the entire display clockwise or counterclockwise Tools 1 Moir...

Page 34: ...f the IPM System is not used NOTE For standard systems and graphics boards keep the factory setting at ENABLE Factory Preset Selecting Factory Preset allows you a reset most OSM control settings back to the factory settings A warning statement will appear to confirm that you do want to reset ALL settings Individual settings can be reset by highlighting the control to be reset and pressing the RESE...

Page 35: ...a power cord is not supplied with this monitor please contact your supplier Cleaning Your Monitor A special coating is provided on the glass CRT surface of this monitor to reduce a reflection and static electricity on the glass surface Due to the delicate coating on the glass surface use a lint free non abrasive cloth cotton or equivalent and a non alcohol neutral non abrasive cleaning solution to...

Page 36: ... glass cleaner to minimize dust Adjust the monitor s brightness and contrast controls to enhance readability Use a document holder placed close to the screen Position whatever you are looking at most of the time the screen or reference material directly in front of you to minimize turning your head while you are typing Get regular eye checkups Ergonomics To realize the maximum ergonomics benefits ...

Page 37: ... o s e R y l n o s e i c n e u q e r f l a c i t r e v z H 0 2 1 o t 0 6 0 8 4 x 0 4 6 z H 0 1 1 o t 0 5 0 0 6 x 0 0 8 z H 6 0 1 o t 0 5 4 2 6 x 2 3 8 z H 7 8 o t 0 5 8 6 7 x 4 2 0 1 z H 7 7 o t 0 5 4 6 8 x 2 5 1 1 z H 6 6 o t 0 5 4 2 0 1 x 0 8 2 1 l l a t r o p p u s t o n y a m s m e t s y s e m o S d e t s i l s e d o m y a l p s i D s c i n o r t c e l E i h s i b u s t i M C E N t a n o i t u...

Page 38: ...er OSM Controls Allows you to quickly and easily adjust all elements of your screen image via simple to use on screen menus ErgoDesign Features Enhances human ergonomics to improve the working environment protect the health of the user and save money Examples include OSM controls for quick and easy image adjustments tilt swivel base for preferred angle of vision space conscious cabinet design and ...

Page 39: ... is used a second time when not switching between modes Picture bounces or a wavy pattern is present in the picture Move electrical devices that may be causing electrical interference away from the monitor See inside cover of User s Manual for FCC information Edges of the display image are not square Use the OSM Geometry Controls to straighten the edges If possible position the front of the monito...

Page 40: ... The Swedish Confederation of Professional Employees Svenska Naturskyddsforeningen The Swedish Society for Nature Conservation and Statens Energimyndighet The Swedish National EnergyAdministration The requirements cover a wide range of issues environment ergonomics usability emission of electrical and magnetic fields energy consumption and electrical and fire safety The environmental demands conce...

Page 41: ...rcury damages the nervous system and is toxic in high doses TCO 99 requirement states that batteries may not contain any Mercury It also demands that no mercury is present in any of the electrical or electronics components associated with the display unit CFCs freons CFCs freons are sometimes used for washing printed circuit boards CFCs break down ozone and thereby damage the ozone layer in the st...

Page 42: ...red Month January to September 1 to 9 October X November Y December Z CRT Manufacture Serial Number MITSUBISHI CRT Made in Mexico 00001 to 49999 MITSUBISHI CRT Made in Japan 50001 to 99999 Factory Code NPG China Factory Y Destination Code USA A Europe B EX SERIAL NUMBER LABEL Model DPLUS74SB DPLUS74SB BK SERIAL NO Serial number 5 digits ...

Page 43: ...posite process of Disassembly Carefully discharge the CRT anode potential by grounding to coating dag before removing Anode Cap Revolving Stand ASSY 1 Turn the monitor CRT face down on a clean static free surface to prevent scratching CRT face 2 Remove with pulling up a Hooks and lifting a Revolving stand Assy to the upside Cabinet Back 1 Remove the two screws 2CBRITS 4 12 15BF Revolving stand Ass...

Page 44: ...e terminals are removed and six solder is removed 2 Disconnect the connectors S201 S202 S203 and GND 3 Unsolder the wires White wire Red wire and Gray wire GND S202 S201 S203 Gray wire White wire Red wire terminals solder ...

Page 45: ...ect the connectors S102 S701 and CRT PWB GND 2 Remove the screw PL CPTS 3 8 15BF 3 Remove the two screws PL CPTS 3 8 15BF and screw PL CPIMS 4 10 15BF Screw S701 S102 CRT PWB GND Screw Screw PL CPIMS 4 10 15BF PL CPTS 3 8 15BF ...

Page 46: ...screw PL CPTS 3 8 15BF 6 Remove the Anode cap from CRT NOTE Carefully discharge the CRT anode by shorting it to ground before removing anode cap 7 Remove the two screws 2CBRITS 4 12 15BF and remove the Chassis Base from Cabinet Front ASSY TPC Ties S301 Screw screw 2CBRITS 4 12 15BF ...

Page 47: ...3 5 8 Remove the eight screws PL CPTS 3 8 15BF and remove the Main Board from Chassis Base screw PL CPTS 3 8 15BF ...

Page 48: ...Test 4 5 7 H V B Confirmation 4 5 8 H Raster Center Adjustment 4 5 9 Preset Picture Size and position Adjustment 4 6 10 White Balance Adjustment 4 6 11 Focus Adjustment 4 8 12 Purity Adjustment 4 8 13 Convergence Adjustment 4 9 14 Power Saving Function Inspection 4 9 15 Distortion Adjustment 4 10 16 Setting Before Shipment 4 11 17 Adjustment Magnetic Field 4 12 18 TIMING SHEET 4 13 ...

Page 49: ...6Hz 5 800 600 56 35 2KHz 56Hz 6 8514A 35 5KHz 87Hz 7 640 480 75 37 5KHz 75Hz 8 EVGA400 37 8KHz 84Hz 9 800 600 60 37 8KHz 60Hz 10 640 480 43 3KHz 85Hz 11 800 600 75 46 8KHz 75Hz 12 1024 768 60 48 3KHz 60Hz 13 MACII 49K 49 7KHz 74Hz 14 800 600 85 53 6KHz 85Hz 15 1024 768 70 56 4KHz 70Hz 16 1024 768 75 60 0KHz 75Hz 17 640 480 120 63 7KHz 120Hz 18 1280 1024 60 64 0KHz 60Hz 19 800 600 100 64 0KHz 100Hz...

Page 50: ...ctory Menu TAB 1 BRIGHTNESS CONTRAST Brightness Contrast TAB 2 POSITION SIZE Left Right H Position Down Up V Position Narrow Wide H Size Short Tall V Size Sub Size Sub H size TAB 3 COLOR ADJUST 1 9300K 2 8200K 3 7500K sRGB sRGB 5 5000K 6 N A Brightness Contrast Red Gain Green Gain Blue Gain Red Bias Green Bias Blue Bias ABL Adjust TAB 4 DISTORTION In Out Side Pincushion Left Right Pin Balance Tilt...

Page 51: ...4 4 TAB 5 TOOLS 1 Vertical Focus TAB 7 INFORMATION Burnin Type Select MCU Version Destination Hours Running ...

Page 52: ...off C Test Apply a resistor 39K 1 4W 1 between TP3 and TP4 then power on Monitor should be active in X Ray protector 7 H V B Confirmation A Mode No 12 B Pattern Full Black Brightness just cut off C Check that the high voltage is 25 5kV 0 7kV 8 H Raster Center Adjustment A Mode No 18 B Pattern Crosshatch Reverse C Adjust the Brightness Control so that the background is visible D Change SW301 positi...

Page 53: ...m up 60 min Make External Degauss B Cut Off Adjustment 1 Select the color Mode 9300K 2 Cut Off Adjustment Video Signal Off 0 Vp p Bright Control set to Max 3 R Bias G Bias and B Bias set to 34 9 4 Adjust the VR307 at the Brightness 3 4 5 1 cd m2 setting 5 9300K Select color Mode 9300 Adjust R Bias B Bias to make x 283 y 297 with readjusting G2 to keep the brightness between 3 4 5 1cd m2 C 9300K 82...

Page 54: ...0 50mm Green block Pattern Brightness Control set to Max Contrast Control set to Max Adjust G Gain control to Y 154cd m2 2 Video signal off 0 Vp p Brightness control set to 0 2cd m2 3 Adjust R Gain control and B Gain control to x 345 y 359 Pattern Full White 5 ABL Adjustment and Brightness Preset 1 Color set to 9300K Pattern is Full White 2 Brightness contrast control to max Adjust AB to Y 103cd m...

Page 55: ...al line to become fine line D Adjust F2 VR of FBT higher side VR for the horizontal line to become fine line E Receive Focus adjustment pattern F Adjust F1 VR if vertical black line is not fall out G Adjust F2 VR if horizontal black line is not fall out H Use the video card Trio64 and receive Microsoft Excel Work sheet 1024 768 85 Make sure that there is no double line for horizontal at the center...

Page 56: ...ne Areas outside of zone A within the rectangle of 315mmx236mm CH CV Within 0 35mm 14 Power Saving Function Inspection A Mode No 20 B Pattern Full white C Input voltage AC240V 50Hz D Inspection 1 It should be into power off Mode when the both horizontal sync and vertical sync are disable after 8 seconds Check the LED color Orange and the power consumption must be less than 5W 2 It should be recove...

Page 57: ...ignal No 14 in step 1 3 Perform the adjust for above all signal in step 4 5 1 Rotation Adjustment 1 Receive signal 14 Cross hatch 2 Select the icon in OSM TAB 4 3 Make sure that the picture tilt meets the following standards 2 Pincushion Balance Adjustment 1 Select the icon in OSM TAB 4 2 Make sure that the Pincushion Balance meets the following standards A B A B 0 5mm x x X 1 0mm ...

Page 58: ...Select the icon in OSM TAB 4 2 Make sure that the side pincushion distortion meets the following standards 5 Trapezoid Distortion Adjustment 1 Select the icon in OSM TAB 4 2 Make sure that the trapezoid distortion meets the following standards 16 Setting Before Shipment A Do Factory Preset in OSM TAB 6 B Set to following TAB Language English OSM Lock OFF IPM OFF MODE Enable 0 5mm 0 5mm 0 5mm 0 5mm...

Page 59: ... will be magnetized 3 Degaussing method When switch on the degaussing probe keep distance between panel surface and degaussing probe more than 50cm Move the degaussing probe vertically facing to the panel surface Keep distance of panel surface and degaussing probe to more than 15mm Starting from edge of CRT move the degaussing probe toward CRT center in circular motion spending 6 to 7 seconds Roun...

Page 60: ... 12 0 67 0 18 Sync Pulse dot 96 96 96 64 72 176 uS 3 18 3 81 3 81 2 12 2 00 3 92 Back dot 48 48 48 96 128 56 uS 1 91 1 91 1 91 3 17 3 56 1 25 Total H 449 449 525 525 625 408 5 mS 14 268 14 268 16 683 15 000 17 778 11 500 Disp H 350 400 480 480 600 384 mS 11 122 12 711 15 253 13 714 17 067 10 810 Front H 37 12 10 3 1 0 mS 1 176 0 381 0 318 0 086 0 028 0 000 Sync Pulse H 2 2 2 3 2 4 mS 0 064 0 064 0...

Page 61: ...0 1 56 0 32 0 37 Sync Pulse dot 64 40 128 56 80 136 uS 2 03 1 27 3 20 1 56 1 62 2 09 Back dot 120 128 88 80 160 160 uS 3 81 4 06 2 20 2 22 3 23 2 46 Total H 500 450 628 509 625 806 mS 13 333 11 886 16 579 11 76 13 333 16 666 Disp H 480 400 600 480 600 768 mS 12 800 10 565 15 840 11 093 12 800 15 880 Front H 1 9 1 1 1 3 mS 0 027 0 238 0 026 0 023 0 021 0 062 Sync Pulse H 3 3 4 3 3 6 mS 0 080 0 079 ...

Page 62: ... 0 32 0 20 0 582 0 44 Sync Pulse dot 64 64 136 96 96 112 uS 1 12 1 14 1 81 1 22 1 745 1 04 Back dot 224 152 144 176 96 248 uS 3 91 2 70 1 92 2 23 1 745 2 30 Total H 667 631 806 800 530 1066 mS 13 413 11 756 14 272 13 328 8 325 16 661 Disp H 624 600 768 768 480 1024 mS 12 548 11 179 13 599 12 795 7 540 16 005 Front H 1 1 3 1 8 1 mS 0 020 0 019 0 053 0 017 0 126 0 016 Sync Pulse H 3 3 6 3 6 3 mS 0 0...

Page 63: ...1024 uS 11 852 10 836 Front dot 40 48 uS 0 593 0 508 Sync Pulse dot 80 96 uS 1 185 1 016 Back dot 136 208 uS 2 015 2 201 Total H 639 808 mS 9 997 11 765 Disp H 600 768 mS 9 386 11 183 Front H 3 1 mS 0 047 0 015 Sync Pulse H 4 3 mS 0 063 0 044 Back H 32 36 mS 0 501 0 524 Interlace NON NON Polarity H V POS POS POS POS Composite Sync Composite Video Character Font 7 9 7 9 Serration OFF OFF EQP OFF OF...

Page 64: ...itions 5 17 5 2 Picture Size and Position 5 17 5 3 Luminance Brightness 5 18 5 4 Color 5 19 5 5 Geometric Distortion 5 20 5 6 Linearity 5 21 5 7 Misconvergence 5 21 5 8 Focus 5 22 5 9 Halo 5 22 5 10 Raster Regulation 5 22 6 CRT Screen and Faceplate Blemish Limits 5 23 6 1 CRT Face Plate Defect 5 23 6 2 AR film s Surface Defect 5 24 7 Inspection of PLUG PLAY Communication and OSM MONITOR INFORMATIO...

Page 65: ...is monitor is capable of maximum resolution of 1280 x 1024 pixels at 66 Hz non interlaced mode and is capable of horizontal frequencies between 30kHz and 70kHz The following list shows the model name Cabinet color Audio function and market CODE NAME MODEL NAME Cabinet color Audio Base MARKET Ver Dplus74SB BK A Diamond Plus 74SB BK Black No USA Canada A ver Dplus74SB B Diamond Plus 74SB White No Eu...

Page 66: ...R SidePin In Out Side Pin Left Right Parallelogram Trapezoid Rotation Moire Cancel Horizontal Language OSM Position OSM Turn off OSM Lock IPM OFF mode Factory Preset URL indication Display Mode Monitor info Refresh Notifier Diagnosis Indication 7 CONNECTOR Power Input Power Cord Length 1 8m Color Haze gray Signal Input Mini 15pin D sub Length 1 8m Color Haze gray 8 POWER SUPPLY Operating Range AC1...

Page 67: ...Energy Star TCO 99 White TCO 95 Black TUV GS IS9241 3 IS9241 7 IS9241 8 TCO 99 White TCO 95 Black CE Marking WHQL Win ME Win 2000 Win XP Dplus74SB B UL C UL TUV GS PCBC Gost PSB C tick EN55022 B EN55024 EN61000 3 2 EN61000 3 3 PTB MPR III TCO 99 Energy Star TCO 99 TUV GS IS9241 3 IS9241 7 IS9241 8 TCO 99 CE Marking WHQL Win ME Win 2000 Win XP This model is applied these regulations in case of incl...

Page 68: ...evices Act PTB German X ray MPR II MPR1990 10 MPR1990 8 MPR III prEN50297 1 2 3 TCO 95 Requirements for environmental labeling of personal computers 1 2 3 TCO 99 Requirements and test methods for environmental labeling of display CRT and Ecology 1 2 3 CE Marking EN60950 1992 AD1 AD2 AD3 AD4 AD11 EN55022 1998 Class B EN55024 1998 IEC61000 4 2 4 3 4 4 4 5 4 6 4 8 4 11 EN61000 3 2 1995 AD1 AD2 EN6100...

Page 69: ...pprox 0 26mm Deflection Angle 90 degree Phosphor Type P22 Electron Gun Type PX DBF type Light Transmission at Center Approx Approx 38 Include Face plate coating Face plate AR film Anti reflection and Anti static Useful Screen dimensions 325 1 mm x 243 8 mm Face plate Curvature H R 50000 mm V R 80000 mm Phosphor Color Coordinate R x 0 626 0 020 y 0 338 0 020 G x 0 278 0 020 y 0 601 0 020 B x 0 150 ...

Page 70: ...Input Impedance 2 2k ohm to grand or more Signal Level Video signal 0 70V p p 5 Composite sync TTL level Separate H V sync TTL level 3 3 Video Performance Video Clock Frequency 120MHz Input signal Pulse Rise and Fall time 9 0nsec typ 10 to 90 at 40Vp p The rise and fall time of the input video signal is 2 0nsec or less The pulse rise or fall time is determined using the formula 2 2 2 2 Tsc Tp Ts T...

Page 71: ...h current 42A 0 peak at 240VAC on cold starting or 30Arms half cycle at 240VAC on cold starting 100A 0 peak at 240VAC on hot starting or 70Arms half cycle at 240VAC on hot starting 3 5 Power Saving H sync V sync Video Power Consumption Recovery Time LED Indicator ON Mode On On Active 70W Max Green Off On Blank On Off Blank Off Mode Off Off Blank 5W 3 5 sec Orange 3 6 Degaussing Auto Degaussing The...

Page 72: ... d ITEM SELECT BUTTONS e FUNCTION ADJUST BUTTONS f SELECT SB Mode BUTTON g RESET BUTTON While OSM is closed User can change Super Bright Mode by pressing SELECT key Super Bright Mode is enable to display brighter picture than Normal Mode by increasing video gain a EXIT b RESET SELECT c d e f g SB MODE ...

Page 73: ...5 10 4 1 2 OSM On Screen Manager Function 4 1 2 1 OSM Menu Tab 1 Tab 2 Tab 3 Tab 4 ...

Page 74: ...5 11 Tab 5 Tab 6 Tab 6 Language Tab 6 OSM Position Tab 6 OSM Turn off Tab 6 OSM Lock Tab 6 IPM OFF Mode ...

Page 75: ...5 12 Tab 6 Factory Preset Tab 7 URL indication Tab 7 Display Mode Tab 7 Monitor info Tab 7 Refresh Notifier Refresh Notifier ...

Page 76: ...5 13 Item Reset Tab Reset Factory Preset Others ...

Page 77: ...gn Trapezoidal 0 100 Adjusted Yes Rotate 0 100 Adjusted Yes 5 Moire Canceler Hor 0 100 0 Yes Increase Decrease 6 Language English German French Spanish Italian Japanese English No OSM Position 5 position Center Yes Cursor move to Left Right OSM Turn off 5 120 sec 45sec Yes Turn off Time shorter Turn off Time longer OSM Lock OFF ON OFF No Lock on Select key IPM OFF Mode Enable Disable 1 Enable No C...

Page 78: ...Hazegray NEC 8508 4 1 4 Connector Pin Assignment 1 Signal Input Connector mini D sub 15P pig tail cable Pin Signal 1 Red video 2 Green video 3 Blue video 4 Gnd 5 DDC Gnd 6 Red Gnd 7 Green Gnd 8 Blue Gnd 9 DDC 5V 10 Sync Gnd 11 Gnd 12 Serial data 13 H sync or Composite sync 14 V sync 15 Serial clock 1 6 11 5 10 15 Signal Cable Connector a b ...

Page 79: ...reset Timing Discrimination Horizontal Frequency 1kHz Vertical Frequency 1Hz Sync Signal Polarity H or V sync signal polarity is different The monitor is able to discriminate input signals by at least one of above parameters 4 1 7 Self Diagnosis Function Monitor show the abnormal condition by Blinking LED Contents of Information LED Blink X ray protector operate Beam protector circuit operate High...

Page 80: ...50 lx Luminance Meter Minolta CA100 or Equivalent If no description the test below are applied under the Basic Test Condition Unless specified the monitor is set at the factory default setting 5 2 Picture Size and Position Adjustment Signal Signal No 3 7 10 13 Size Position Horizontal 315mm 3 0 mm Vertical 236mm 3 0 mm Horizontal XLef t Xright 3 0mm Vertical XTop XBottom 3 0mm The picture should a...

Page 81: ...6cd m2 Full White 110 cd m2 at 9300K 8 M P C D When Brightness control to MAX the luminance should be over 90cd m2 5 3 2 Luminance at CRT center Window pattern H 33 V 33 Contrast Max Brightness Set to cut off 120 cd m2 Window pattern 160 cd m2 at 9300K 8 M P C D SB Mode ON Contrast Max Brightness Set to cut off Window pattern 300cd m2 30 0 at 9300K 8 M P C D 5 3 3 Luminance Variation Full white pa...

Page 82: ...0cd m2 to MAX Brightness Cut off 5 4 3 Color Tracking of brightness control Window pattern H 33 V 33 X Xref 0 020 Y Yref 0 020 Color setting 9300K Contrast Control 50 cd m2 at Brightness cut off Brightness from Max to Min 5 4 4 sRGB color quality Full white pattern RED x 0 640 0 020 0 035 Y 0 330 0 030 0 020 Green x 0 300 0 020 0 035 Y 0 600 0 020 0 020 Blue x 0 150 0 015 0 015 Y 0 060 0 030 0 015...

Page 83: ...mm a2 b2 c2 d2 5 5 4 Trapezoid Signal No 3 7 10 13 a Horizontal AD BC AD BC 100 0 8 or AD BC 3 7mm b Vertical AB DC AB DC 100 0 5 or AB DC 3 1mm AD AB BC DC 5 5 5 Parallelogram Signal No 3 7 10 13 1 6mm a 1 6mm or 0 5 degree α 0 5 degree a α 5 5 6 Overall Distortion Signal No 3 7 10 13 Top a max a min 2 0mm Bottom b max b min 2 0mm Left side c max c min 2 0mm Right side d max d min 2 0mm Signal No...

Page 84: ...5 mm within the 236 mm diameter circle Misconvergence Zone B X Y 0 35 mm within 315 mm x 236 mm With White Crosshatch 17 lines horizontally by 13 lines vertically applied Zone A is a circular area with 236mm diameter at the center Zone B is a rectangular area 315mm x 236mm outside of the Zone A Use worst case horizontal vertical misconvergence between any two primary colors Zone A Zone B X Y X1 X2...

Page 85: ...rtical lines halos core are less than 6 grills R B Horizontal lines core halos less than 1 5 Vertical Grills Core Horizontal Halo 5 10 Raster Regulation Raster Size Regulation Full White pattern Judgment 1 The picture size should not vary more than following spec by luminance change from 100cd m2 to 30cd m2 2 The picture size should not vary more than following spec by input voltage change in 90 1...

Page 86: ...aster and each monochrome color of red green and blue 6 1 2 Division of Zone A screen is divided into following 2 zones zone A Area inside the rectangle that its size measures the followings in the center of screen H 300 mm V 225 mm zone B Area outside the above rectangle 6 1 3 Limits 1 CRT face defect a Distance minimum distance b Average diameter Turn of a b 2 a length b width c Limit Dark spot ...

Page 87: ... of φ10mm b Scratch Width mm Allowable Length mm 0 16 rejected 0 11 0 15 3 0 06 0 10 26 0 05 unlimited c Other glass defects Flaw crack and lack cannot be distinguish easily by naked eye Iron rust conforms to limited sample 6 2 AR film s Surface Defect 6 2 1 Inspection Condition 1 Put a valve on an inspective stand and Illuminate it from the top with white fluorescent light 2 Valve surface Illumin...

Page 88: ...in and apply standard of 6 2 3 2 NOTE 2 Do not recognize flaws which injures goods prices though it is not especially stipulated as for zone C 2 Opaque flaws ex Stain and coating peeling Do not apply the following standard to zone C Classify flaws by contrast and judge it by size every the contrast Definition of a contrast High contrast The foreign substance which shuts off light from fluorescence...

Page 89: ...ble in the next page for total defect number which is acceptable in low contrast NOTE 1 Convert a b 2 or a 20 2b small value into average diameter a length b width total number of a low contrast flaws zone A zone B Standard classified by zones 6 8 Total zone A zone B 10 NOTE 1 Acceptable interval shall be larger one in the case that defects have different interval NOTE 2 There is no standard regar...

Page 90: ...y c Set up the MO DOS mode DOS Prompt of Windows95 98 is also acceptable d Execute the DP74SB BAT from the command line e MONITOR INFO of the OSM is indicated and a model name and a serial number are confirmed When the model name and the serial number are not written in or it differs h or later is performed f Press the F1 key to start the inspection of DDC1 As a result of inspection when EDID data...

Page 91: ...on the contents of EDID are displayed If an error should occur the related error message will be displayed in the bottom area of the screen Refer to Paragraph 7 5 in regard to the meaning of this error message l Press the F2 key to start the inspection of DDC2B After the completion of inspection the contents of EDID are displayed If an error should occur the related error message will be displayed...

Page 92: ...01 01 10 30 1 0B 2 01 03 0C 21 18 78 EA 67 A8 A0 56 47 99 26 20 11 48 4C FF FE 00 31 59 45 59 61 59 71 4F 81 40 30 81 80 01 01 01 01 EA 24 00 60 41 00 28 30 30 60 40 13 00 3B EC 10 00 00 1E 00 00 00 FD 00 32 78 1E 50 46 0C 00 0A 20 20 20 20 20 20 00 00 00 FC 00 44 60 50 6C 75 73 37 34 53 42 0A 20 20 20 00 00 00 FF 70 00 31 3 5A 3 30 3 30 3 30 3 30 3 31 3 59 3 41 3 0A 3 20 3 20 3 20 3 00 11 4 Table...

Page 93: ... 000 21 333 1056 1 616 80 0 323 16 3 232 160 16 162 800 13 333 625 0 064 3 0 021 1 0 448 21 12 800 600 7 VESA 640 480 85 36 000 43 269 85 008 23 111 832 1 556 56 1 556 56 2 222 80 17 778 640 11 764 509 0 069 3 0 023 1 0 578 25 11 093 480 8 VESA 1024 768 60 65 000 48 363 60 004 20 677 1344 2 092 136 0 369 24 2 462 160 15 754 1024 16 666 806 0 124 6 0 062 3 0 600 29 15 880 768 9 MAC832 624 57 283 49...

Page 94: ...o User s Manual trouble shooting section before using this chart Page 1 NO OPERATION POWER LED FLASH 6 2 2 NO OPERATION POWER LED OFF 6 3 3 VIDEO NOISE UNSYNCHRONOUS 6 4 4 NO VIDEO 6 5 5 NO RASTER 6 6 6 TROUBLE IN H V SYNC 6 7 7 POOR PINCUSHION 6 8 ...

Page 95: ...TO C330 NEGATIVE CONNECT TO U302 pin 7 2 SCOPE SET AT 10V DIV 10US DIV PROBE CONNECT TO Q319 GATE AND U302pin 6 POWER LED FLASH CHECK U302 U302 PIN6 PULSE O P POWER SW TURN OFF FAILURE U302 Q106 CHECK U302 PIN 10 VCC PIN 4 SAWTOOTH PIN 8 5V NO POWER SW TURN OFF MULTIMETER TEST Q307 U302 D110 D111 D112 D113 ...

Page 96: ...00MA POSITIVE CONNECT TO C109 NEGATIVE CONNECT TO C105 2 SCOPE SET AT 10V DIV 10US DIV PROBE CONNECT TO Q101 GATE AND C105 POWER SW TURN OFF CHECK F101 CHECK Q101 CHECK U101 U101 PIN6 PULSE O P POWER SW TURN ON FAILURE R114 R120 ZD106 CHECK U101 PIN 7 VCC PIN 4 SAWTOOTH PIN 8 5V NO ...

Page 97: ...AL FREQUENCY D124 TO GND CHECK Q319 G S FREQUENCY SYNCRONIZE WITH H SYNC CHECK HORIZONTAL FREQUENCY C359 TO GND CHECK R30X FBT PIN6 NORMAL OPERATION CHECK Q101 G S FREQUENCY SYNCRONIZE WITH H SYNC CHECK D124 R116 D109 R115 R117 YES YES NO NO NO NO ...

Page 98: ...ECK U201 PIN 18 19 20 SIGNAL LEVEL PROBLEM IN U201 CLAMP PIN 23 U201 12V VOLTAGE YES CHECK U204 PIN 6 7 9 SIGNAL LEVEL CHECK CATHODE VIDEO LEVEL PROBLEM IN CRT YES YES PROBLEM IN R255 R235 R215 NO PROBLEM IN U204 12V 80V VOLTAGE NO NO TROUBLE IN R G B SIGNAL SIGNAL CABLE NO REFER TO NO RASTER ON PAGE NO ...

Page 99: ...VOLTAGE 56V 68V AT H FREQ 31 5KHz PROBLEM IN MCU U701 PROBLEM IN U701 U302 PROBLEM IN U302 Q319 D335 L304 OR DEFLECTION YOKE PROBLEM IN Q307 Q308 T302 D307 D308 CHECK Q307 COLLECTOR ABOUT 1050Vp p CHECK G1 VOLTAGE ABOUT 45 65V PROBLEM IN Q305 Q306 D318 T301 C344 PROBLEM IN G2 VOLTAGE YES YES YES YES YES YES YES NO NO NO NO NO NO ...

Page 100: ...CHECK U701 PIN 40 39 H V SYNC SIGNAL PROBLEM IN H V SYNC LINE Q301 Q401 CHECK U701 PIN 32 33 H V SYNC SIGNAL CHECK U701 PIN 5 VOLTAGE 5V CHECK U302 PIN 14 15 CHECK U701 PIN 8 FREQ 12MHz PROBLEM IN U302 PROBLEM IN U701 PROBLEM IN U203 12V 80V VOLTAGE PROBLEM IN 5V LINE YES NO YES YES YES YES YES YES NO NO NO NO NO ...

Page 101: ...8 7 POOR PINCUSHION POOR PINCUSHION PARABOLA WAVE CHECK U302 PIN 11 PARABOLA CHECK U302 PIN 14 SYNC INPUT CHECK U701 PIN 32 OUTPUT CHECK R390 U301 CHECK 12V U302 CHECK U301 Q316 Q318 NO NO NO YES YES YES ...

Page 102: ...eflection signal processing Vertical and geometrical raster compensation 7 21 4 Horizontal drive and power supply output 7 33 5 Horizontal amplitude control 7 34 6 Blanking and spot killer 7 35 7 Video amplifier system 7 36 8 9nS Hight Gain CRT Driver 7 43 9 Bias Clamp 7 47 10 On Screen Display 7 49 ...

Page 103: ...n other electronic equipment 1 4 AC rectifier and smoothing capacitor The AC input is rectified by means of the full bridge rectifier that consists of the diodes D101 to D104 The AC voltage is converted into the DC voltage by passing through the next stage that consists of the smoothing capacitor C105 TH101 is a NTC thermistor for the power supply at the in rush current limit 1 5 Degaussing circui...

Page 104: ...he transistor U103 and diode D131 and resistor R169 and zener diode ZD101 are for operation starting When the circuit starts its operation the power supply trans former T101 supplies the auxiliary 12 Volt power to the control IC chip U101 via pins 6 and 7 of the winding transformer T101 5 Synchronization circuit The synchronization signal is induced from the fly back transformer FBT and carries ou...

Page 105: ...o the ON state 1 8 DC DC The DC DC voltage is DC 49 volts and since the set up voltage is variable from 62 volts to 160 volts it is variable depending on the horizontal sync The frequency band is variable from 31 kHz to 69 kHz The voltage is fed back from the fly back transformer FBT The DC DC output voltage is used as high voltage input of FBT T301 1 DC DC is a step up circuit and consists mainly...

Page 106: ... 2 Key input 2 pins for A D key input SELECT UP DOWN and RECALL 3 Burn in ID input 1 pins for Burn in ID input 4 Reset input low pulse for reset MCU 5 Crystal input 2 pins using 8MHz crystal Output MCU digital pin 1 Degauss Active high pulse for 2 5 sec when in degauss MCU will activate degauss while power on 2 CS output 3 pins CS2 CS1 CS0 for CS control H sync CS2 CS1 CS0 H sync 33 25kHz 0 0 0 33...

Page 107: ...C value 255 means the maximum output volts except Parallel PWM All D A except Rotation Brightness Contrast R gain G gain B gain are mode dependent functions Parallel is voltage inverter function 6 Sync output 2 pins for H sync and V sync negative output normal high 7 DDC 2 pins DDC SDA DDC SCL for DDC1 DDC2B or auto alignment control In auto alignment mode all keys and OSD are disabled 8 SDA SCL 2...

Page 108: ...rocessor with H V separation H V frequency counter H V polarity detection control and clamp pulse output Six free running sync signal outputs Horizontal frequency up to 106kHz 85Hz 1600x1200 Self test pattern DDC1 2B module for EDID1 3 EDID2 0 and Enhance EDID Fast mode master slave I C interface up to 400kHz Embedded USB function with endpoint 0 and endpoint 1 Built in 3 3V regulator for USB tran...

Page 109: ...PA2 PWM8 PA1 SCL1 PC0 AD0 PC2 AD2 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 40 pin PDIP PWM0 D PWM2 PWM1 RESET 3V3 VDD GND OSCO OSCI PB5 SDA2 PB4 SCL2 PB3 PAT PB2 PB1 HFI PB0 HFO IRQ PC7 SOGIN PC6 WT62P2 S44 44 pin SOP 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 PA1 SCL1 PA6 PWM12 PD0 VOUT PD2 PWM7 D VIN HIN PWM3 PD5 PWM4 PD4 PWM5 PD3 PWM6 PD1 HOUT PA7 PWM13 CLAMP PA5 PWM11 P...

Page 110: ...el on this can generate interrupt 18 18 17 16 PC7 SOGIN I O Port C7 or Sync on Green input 19 19 18 17 PC6 I O Port C6 20 20 19 18 PC5 I O Port C5 21 21 20 19 PC4 I O Port C4 22 22 21 20 PC3 AD3 I O Port C3 or ADC input 3 23 23 22 21 PC2 AD2 I O Port C2 or ADC input 2 24 24 23 22 PC1 AD1 I O Port C1 or ADC input 1 25 25 24 23 PC0 AD0 I O Port C0 or ADC input 0 26 26 25 24 PA0 SDA1 I O Port A0 or D...

Page 111: ...e from 0080H to 00FFH 256 bytes SRAM are from 0100H to 01FFH 256 bytes SRAM are from 0200H to 02FFH 256 bytes SRAM are from 0300H to 03FFH 128 bytes SRAM are from 0400H to 047FH The 256 bits bit addressable SRAM are from 0500H to 05FFH Flash Memory 60K bytes flash memory for program Address is located from 1000 to FFFFh The following addresses are reserved for special purpose FFFAh low byte and FF...

Page 112: ...0h 003Fh Registers 0040h 007Fh Reserved 0080h 00FFh 128 bytes RAM 0100h 01FFh 256 bytes RAM 0200h 02FFh 256 bytes RAM 0300h 03FFh 256 bytes RAM 0400h 047Fh 128 bytes RAM 0480h 04FFh Reserved 0500h 05FFh Bit addressable 256 bits RAM 0600h 0FFEh Reserved 0FFFh Configuration Register 1000h FFFFh Flash ROM ...

Page 113: ...Fh Low VDD Voltage Reset When VDD is below 3 9V an internal reset signal is generated The reset signal will last 2 048 ms after the voltage is higher than 3 9V Watchdog Timer Reset If a time out happens when watchdog timer is enabled a reset pulse is generated Please refer watchdog timer section for more information Fig 1 Reset Signals RESET 3V3 Watchdog Timer Reset Low VDD Reset Illegal Address R...

Page 114: ... of PA0 Pins PA2 to PA6 are shared with PWM output When corresponding EPWMx bit is 0 the pin is I O port If PAxOE bit is set it is a push pull type output If PAxOE bit is cleared it is an input pin with internal pull up resistor Pin PA7 is shared with PWM13 output and clamp pulse output When both EPWM13 bit and ENCLP bit are 0 this pin becomes I O port If PA7OE bit is set it is a push pull type ou...

Page 115: ...polarity is positive HINPOL 1 If the result of sampling is high and lasts 192 256us with no change the polarity is negative HINPOL 0 Vertical Polarity Detect Vertical polarity is detected by sampling VIN level at 2 048ms after rising edge of VIN If the level is low the polarity is positive VINPOL 1 If the level is high the polarity is negative VINPOL 0 But if SEPART bit is set the VINPOL bit is 1 ...

Page 116: ...ed by 2us pulse during Vsync pulse The composite sync signal separator can handle H V and H exclusive OR V signals Fig 5 shows the timig relationship of the extracted H and V sync signals If Hsync output do not want to insert pseudo H pulses EXTRHS signal during Vsync pulse set BY PASS bit can let HOUT pin output waveform same as Hsync input Note polarity can be controlled by HOPOL bit Fig 6 Timin...

Page 117: ...8kHz 63 83kHz 81 25kHz 90 909kHz 106 195kHz FV Ver frequency 59 993Hz 72 072Hz 59 878Hz 64 865Hz 84 8Hz 84 96Hz THT Hor total time 31 75us 20 833us 15 667us 12 333us 11us 9 417us TVT Ver total time 16 669ms 13 875ms 16 7ms 15 417ms 11 792ms 11 771ms THS H sync time 3 833us 2 417us 1us 1 083us 1us 0 833us THB H Back porch H Left border 2 us 1 417us 2 417us 1 833us 1 583us 1 417us THF H Front porch ...

Page 118: ...7 17 DDC Flow Chart ...

Page 119: ...7 18 Master I C Flow Chart ...

Page 120: ...7 19 Master I C restart mode Flow Chart ...

Page 121: ...7 20 Slave I C Flow Chart ...

Page 122: ...on grid 1 of picture tube Horizontal section I C bus controllable wide range linear picture position pin unbalance and parallelogram correction via horizontal phase Frequency locked loop for smooth catching of horizontal frequency Simple frequency preset of fmin and fmax by external resistors Low jitter Soft start for horizontal and B control drive signals Vertical section I C bus controllable ver...

Page 123: ...7 22 BLOCKDIAGRAM I C bus autosync deflection controller for PC monitors TDA4857 ...

Page 124: ...t CLBL 16 video clamping pulse vertical blanking output HUNLOCK 17 horizontal synchronization unlock protection vertical blanking output SCL 18 I C bus clock input SDA 19 I C bus data input output ASCOR 20 output for asymmetric EW corrections VSMOD 21 input for EHT compensation via vertical size VAGC 22 external capacitor for vertical amplitude control VREF 23 external resistor for vertical oscill...

Page 125: ... sync integrator and sync normalizer are disjuncted before they are fed to the vertical oscillator Video clamping vertical blanking generator The video clamping vertical blanking signal at CLBL pin 16 is a two level sandcastle pulse which is especially suit able for video ICs such as the TDA488x family but also for direct applications in video output stages The upper level is the video clamping pu...

Page 126: ...e or if a pro tection condition is true All this can be detected by the microcontroller if a pull up resistor is connected to its own supply voltage For an additional fast vertical blanking at grid 1 of the pic ture tube a 1 V signal referenced to ground is available at this output The continuous protection blanking see Sec tion Video clamping vertical blanking generator is also available at this ...

Page 127: ...the phase of the HDRV pin 8 output pulse An external modulation of the PLL2 phase is not allowed because this would disturb the pre correction of the hori zontal focus parabola Soft start and standby If HPLL2 is pulled to ground either by an external DC cur rent or by resetting register SOFTST the horizontal output pulses and B control driver pulses will be inhibited This means that HDRV pin 8 and...

Page 128: ...should be at least 10 lower than the minimum trigger frequency The contributions shown in Table 2 canbe assumed I C bus autosync deflection controller for PC monitors TDA4857 Result for 50 to 160Hz application Hz 42 1 19 Hz 50 fr V f The AGC of the vertical oscillator can be disabled by set ting control bit AGCDIS via the I C bus Aprecise external current has to be injected into VCAP pin 24 to obt...

Page 129: ...rapezium correction EWDRV pin 11 provides a complete EW drive waveform The components horizontal pincushion horizontal size corner correction and trapezium correction are controlled by the registers HPIN HSIZE HCORT HCORB and HTRAP The corner correction can be adjusted separately for the top HCORT and bottom HCORB part of the picture The pincushion EW parabola amplitude corner and tra pezium corre...

Page 130: ...OCUS pin 32 This section generates a complete drive signal for dynamic focus applications The amplitude of the horizontal parabola is internally stabilized thus it is independent of the horizon tal frequency The amplitude can be adjusted via register HFOCUS Changing horizontal size may require a correc tion of HFOCUS To compensate for the delay in external focus amplifiers a pre correction for the...

Page 131: ...arge sequence and resets the flip flop When the voltage at BSENS reaches the threshold voltage VRESTART BSENS the discharge circuit will be disabled au tomatically and the flip flop will be set immediately This behaviour allows a definition of the maximum duty cycle of the B control drive pulse by the relationship of charge current to discharge current Supply voltage stabilizer references start up...

Page 132: ...address an acknowledge is not given after the data This indicates that only in soft start mode data can be stored into normal registers If the supply voltage dips under 8 1 V the TDA4857 leaves normal operation mode and changes into standby mode The microcontroller can check this state by sending data into a register with the subaddress 0XH The acknowl edge will only be given on the data if the TD...

Page 133: ...7 32 I C bus autosync deflection controller for PC monitors TDA4857 APPLICATION INFORMATION ...

Page 134: ... through the driving signal IB1 ICPMAX Q1hfeMIN IB2 3IB1 di dt 3 3 A US 2 Resistor R2 corrects the current IB1 resistor R3 works as a damping resistor and leak resistor and diode D2 works as a discharging device and polar body As long as transistor Q1 is OFF the discharge is accelerated and the storage time Tstg is short ened 3 H OUT circuit wavefor VCC T1 R2 D2 R1 Q2 R3 Q1 CT D1 DR CS B C2 ...

Page 135: ...hen Vm Vcs ly B Vp 2Tr π Ts Tr LyCt Tm LmCm 2 Q2 Q3 and U1 compose the control circuit of H WIDTH Of those devices the transistors Q2 and Q3 compose the Darlington current amplifier and the operational amplifier U1 composes the emitter coupled circuit that stabilizes the voltage and controls the current 3 The horizontal width broadens when Va VbI I1 I2 Vm An inference in the opposite sense is also...

Page 136: ...age protect 3 The Q6 is spot killer protect circuit in normal power on stage V1 V2 and ZD1 so Q6 off The CRT G1 voltage is fixed at 45 67VDC with vertical blanking pulse 12Vpp VG1 V R11 R10 R11 V V1 V3 When power off the voltage V1 V2 then Q6 turn on pulling VG1 to 180V to protect CRT 4 When Mute set to lower the Q3 off G1 180V screen cut off no picture display this mute circuit is active at power...

Page 137: ...tly on the AC coupled input signal into the high impedance preamplifier input thus eliminating the need for the additional black level clamp capaci tors The IC is packaged in an industry standard 24 lead DIP molded plastic package Features I2 C compatible interface to micro controller 110 MHz bandwidth preamplifier with full video signal parametric control 4 external 8 bit DACs for bus controlled ...

Page 138: ...lue OSD Input These inputs accept standard TTL or CMOS input Each color is either fully on logic high or fully off logic low Unused pins should be connected to ground with a 47k resistor 4 OSD Select This input accepts a standard TTL or CMOS input H OSD L Video Connect to ground with a 47k resistor if not using OSD ...

Page 139: ... critical for optimum operation of the LM1269 11 SDA The I C data line A pull up resistor of about 2kΩ should be connected between this pin and 5V A 300Ω resistor should be connected in series with the data line for protection against arcing 12 SCL The I C Clock line A pull up resistor of about 2kΩ should be connected between this pin and 5V A 300Ω resistor should be connected in series with the c...

Page 140: ...a control voltage proportional to the CRT beam current The ABL acts identically on all three channels ABL is required for CRT life and X ray protection 23 Clamp Pulse This input accepts a standard TTL or CMOS input A positive signal activates the clamp pulse for DC restoration of the video input The AC coupling capacitors at the video inputs are used for holding the DC correction voltage eliminati...

Page 141: ... this section Next in the video path is the OSD Mixer The OSD Select signal at pin 4 controls this stage selecting OSD with a high at pin 4 and video with a low at pin 4 Since the DC restoration feedback is at the Contrast output the video black level will match the OSD black level The OSD signal is mixed with the video signal at the output of this stage The OSD goes through the OSD Contrast stage...

Page 142: ...signal H Blank Some customers may still prefer to use a standard logic signal for the horizontal blanking Pin 24 can be adapted to accept a logic input It is necessary for the current flow into pin 24 to reverse for proper operation Therefore the logic signal must be AC coupled into pin 24 Figure 6 shows the recommended circuit for a logic signal input The blank signal must be a positive pulse Pow...

Page 143: ...otec tion is combined with good PCB layout the LM1269 will easily survive the IEC 801 2 level 4 testing 8 kV ESD It is strongly recommended that the protection diodes be added as shown in Figure 7 The 1N4148 diode has a maximum capacitance of 4 pF which will have little effect on the response of the video system due to the low impedance of the input video The ESD cells of the LM1269 also provide g...

Page 144: ...oads as well as resistive loads present in other applications limited only by the package s power dissipation The IC is packaged in an industry standard 9 lead TO 220 molded plastic package Features Higher gain to match LM126X CMOS preamplifiers 0V to 3 75V input range Stable with 0 20pF capacitive loads and inductive peaking networks Maintains standard LM243X Family Pinout which is designed for e...

Page 145: ...nother member of the LM246X family is used pleased refer to its datasheet POWER SUPPLY BYPASS Since the LM2469 is a wide bandwith amplifier proper power supply bypassing is critical for optimum performance Improper power supply bypassing can result in large overshoot ringing or oscillation A 0 1uF capacitor should be connected from the sup ply pin VCC to ground as close to the supply and ground pi...

Page 146: ...tive load TYPICALAPPLICATION The typical application of the LM2469 is shown in Figure 5 6 Used in conjunction with an LM126X and an LM2479 2480 bias clamp a complete video channel from monitor input to CRT cathode can be achieved Performance is ideal for 1024 x 768 resolution displays with pixel clock frequencies up top 75MHz Figure 6 are the schematic for the NSC demonstration board that can be u...

Page 147: ...7 46 ...

Page 148: ...er It is well matched with the DAC outputs of the LM126 x family of pre amplifiers Each amplifier has its gain internally set to 18 The IC is package Features Wide range integrated triple bias clamp High input impedance Single supply operation Matched to the LM126X family of preamplifiers Recommended Applications CRT monitor requiring DC restoration at the cathodes Block Diagrams Package Pinout ...

Page 149: ...ally a 1 0mF electrolytic capacitor should be connected from the supply pin to ground The electrolytic capacitor should also be placed reasonably close to the LM2480 s supply and ground pins Application Circuit The application circuit shown in Figure 5 is designed to help clamp the voltage at the output of the driver to the desired level Capacitor C4 stabilizes the entire node at the anode of the ...

Page 150: ...ask option 16 pin 20 pin or 24 pin PDIP package GENERALDESCRIPTION MTV030 is designed for monitor applications to display built in characters or fonts onto monitor screen The display operation occurs by transferring data and control information from the micro controller to RAM through a serial data interface It can execute full screen display automatically as well as specific functions such as cha...

Page 151: ...s filter RP I O 3 3 3 3 Bias Resistor The bias resistor is used to regulate the appropriate bias current for internal oscillator to resonate at specific dot frequency VDDA 4 4 4 4 Analog power supply Positive 5 V DC supply for internal analog circuitry And a 0 1µF decoupling capacitor should be connected across to VDDA and VSSA HFLB I 5 5 5 5 Horizontal input This pin is used to input the horizont...

Page 152: ... pulse width is programmable by the register of Row 15 column 24 PWM2 O 11 14 Open Drain PWM D A converter 2 The output pulse width is programmable by the register of Row 15 column 25 PWM3 O 12 15 Open Drain PWM D A converter 3 The output pulse width is programmable by the register of Row 15 column 26 PWM4 O 16 Open Drain PWM D A converter 4 The output pulse width is programmable by the register o...

Page 153: ...358 79PQ0242 CERAMIC Z5V F T 0 01u 50V Z C251 1 GA410575 79PQ0213 ELECT NP T 1u 100V M C252 1 GAA10575 79PQ1744 ELECT 85oC A 1u 100V M C253 1 GB656052 79PQ1087 CERAMIC SL T 56P 50V J C270 1 GA347625 79PQ0210 ELECT 85oC T 47u 16V M C272 1 GB910358 79PQ0242 CERAMIC Z5V F T 0 01u 50V Z C273 1 GB7102F3 79PQ0234 CERAMIC Y5P B T 1000P 500V K C274 1 GB7222F3 79PQ1717 CERAMIC Y5P B T 2200P 500V K C275 1 G...

Page 154: ...PHILIPS D234 OR 80004711 79PQ1755 ROHM DIODE 1SS244 D234 OR EJ044148 79PQ0065 DIODE T 1N4148 D235 1 80000451 79PQ0043 DIODE T 1 2W 1SS83 D252 1 80000051 79PQ0017 DIODE T 1 2W 1SS82 D252 OR 80001211 79PQ0724 DIODE T 1 2W BAV21 PHILIPS D252 OR 80004711 79PQ1755 ROHM DIODE 1SS244 D252 OR 80000451 79PQ0043 DIODE T 1 2W 1SS83 D253 1 80000051 79PQ0017 DIODE T 1 2W 1SS82 D253 OR 80001211 79PQ0724 DIODE T...

Page 155: ...ON 1 8W T 5 100ohm R230 1 FA040331 79PQ1020 CARBON 1 8W T 5 330ohm R231 1 FB247509 79PQ0168 METAL 1 4W T 1 75ohm R233 1 FA040103 79PQ0083 CARBON 1 8W T 5 10Kohm R234 1 FA240820 79PQ1737 CARBON 1 4W T 5 82ohm R235 1 FA040105 79PQ0085 CARBON 1 8W T 5 1Mohm R236 1 FA040102 79PQ0082 CARBON 1 8W T 5 1Kohm R237 1 FA040101 79PQ0081 CARBON 1 8W T 5 100ohm R250 1 FA040331 79PQ1020 CARBON 1 8W T 5 330ohm R2...

Page 156: ...79PQ1232 BEAD 3 5x6x0 8 T B103 1 R0319110 JUMPER WIRE AI T 10mm B104 1 R0319110 JUMPER WIRE AI T 10mm B107 1 80000561 79PQ1232 BEAD 3 5x6x0 8 T B108 1 80000561 79PQ1232 BEAD 3 5x6x0 8 T B109 1 HC006002 79PQ1104 BEAD 3 5X4 7 T B301 1 HC006002 79PQ1104 BEAD 3 5X4 7 T B302 1 HC006002 79PQ1104 BEAD 3 5X4 7 T B303 1 HC006002 79PQ1104 BEAD 3 5X4 7 T B304 1 HC006002 79PQ1104 BEAD 3 5X4 7 T B305 1 HC00600...

Page 157: ...1 GE210452 79PQ0915 PLASTIC PEI T 0 1u 50V J C317 1 GE233252 79PQ0247 PLASTIC PEI T 0 0033u 50V J C320 1 GE233252 79PQ0247 PLASTIC PEI T 0 0033u 50V J C327 1 GA347455 79PQ0207 ELECT 85oC T 0 47u 50V M C328 1 GA347725 79PQ0851 ELECT 85oC T 470u 16V M C330 1 GB9103F8 79PQ1271 CERAMIC Z5V F T 0 01u 500V Z C331 1 GA347625 79PQ0210 ELECT 85oC T 47u 16V M C335 1 GA310555 79PQ0196 ELECT 85oC T 1u 50V M C...

Page 158: ...C T 1u 50V M C701 1 GB210458 79PQ0228 CERAMIC Y5V T 0 1u 50V Z C702 1 GA310725 79PQ0199 ELECT 85oC T 100u 16V M C703 1 GA322555 79PQ0202 ELECT 85oC T 2 2u 50V M C704 1 GB633052 79PQ0231 CERAMIC SL T 33P 50V J C705 1 GB633052 79PQ0231 CERAMIC SL T 33P 50V J C706 1 GB610152 79PQ0229 CERAMIC SL T 100P 50V J C707 1 GB610152 79PQ0229 CERAMIC SL T 100P 50V J C708 1 GB210458 79PQ0228 CERAMIC Y5V T 0 1u 5...

Page 159: ...48 79PQ0065 DIODE T 1N4148 D336 1 EJ044148 79PQ0065 DIODE T 1N4148 D337 1 EJ044148 79PQ0065 DIODE T 1N4148 D338 1 R0319110 JUMPER WIRE AI T 10mm D339 1 EJ044148 79PQ0065 DIODE T 1N4148 D340 1 EJ044148 79PQ0065 DIODE T 1N4148 D341 1 EJAC0018 79PQ1251 DIODE T 1A 1N4937 D343 1 EJ044148 79PQ0065 DIODE T 1N4148 D345 1 EJAC0018 79PQ1251 DIODE T 1A 1N4937 D403 1 EJ044148 79PQ0065 DIODE T 1N4148 D601 1 EJ...

Page 160: ... JUMPER WIRE AI T 7 5mm J13 1 R0319110 JUMPER WIRE AI T 7 5mm J130 1 R0319110 JUMPER WIRE AI T 20mm J131 1 R0319110 JUMPER WIRE AI T 20mm J132 1 R0319110 JUMPER WIRE AI T 15mm J133 1 R0319110 JUMPER WIRE AI T 12 5mm J134 1 R0319110 JUMPER WIRE AI T 17 5mm J135 1 R0319110 JUMPER WIRE AI T 12 5mm J136 1 R0319110 JUMPER WIRE AI T 7 5mm J137 1 R0319110 JUMPER WIRE AI T 10mm J138 1 R0319110 JUMPER WIRE...

Page 161: ...E AI T 10mm J45 1 R0319110 JUMPER WIRE AI T 7 5mm J46 1 R0319110 JUMPER WIRE AI T 7 5mm J47 1 R0319110 JUMPER WIRE AI T 17 5mm J48 1 R0319110 JUMPER WIRE AI T 12 5mm J49 1 R0319110 JUMPER WIRE AI T 15mm J50 1 R0319110 JUMPER WIRE AI T 10mm J51 1 R0319110 JUMPER WIRE AI T 10mm J52 1 R0319110 JUMPER WIRE AI T 17 5mm J53 1 R0319110 JUMPER WIRE AI T 17 5mm J54 1 R0319110 JUMPER WIRE AI T 7 5mm J55 1 R...

Page 162: ...R0319110 JUMPER WIRE AI T 7 5mm L308 1 JB000761 N1702 MAIN BOARD PCB V01 MAIN PCB 1 EAA18157 79PQ0734 TR NPN 2SC1815GR TO 92 T T P S Q105 1 EAA09456 79PQ0056 TR NPN 2SC945P TO 92 T N P S Q105 OR EAA23285 79PQ2475 TR NPN KSC2328A TO 92 T Q106 1 EAA32055 TR NPN KTC2305 Y TO 92L T Q106 OR EAA22355 79PQ0058 TR NPN 2SC2235Y TO 92 T TOSHIBA Q106 OR EAA18157 79PQ0734 TR NPN 2SC1815GR TO 92 T T P S Q107 1...

Page 163: ...1 EBA07336 79PQ0062 TR PNP 2SA733P TO 92 T N P S Q604 OR EAA18157 79PQ0734 TR NPN 2SC1815GR TO 92 T T P S Q605 1 EAA09456 79PQ0056 TR NPN 2SC945P TO 92 T N P S Q605 OR EAA18157 79PQ0734 TR NPN 2SC1815GR TO 92 T T P S Q606 1 EAA09456 79PQ0056 TR NPN 2SC945P TO 92 T N P S Q606 OR EBA07336 79PQ0062 TR PNP 2SA733P TO 92 T N P S Q701 1 EBA10157 79PQ0735 TR PNP 2SA1015GR TO 92 T T P S Q701 OR EBA07336 7...

Page 164: ...9PQ0082 CARBON 1 8W T 5 1Kohm R301 1 FA040561 79PQ0119 CARBON 1 8W T 5 560ohm R303 1 FA040225 79PQ0098 CARBON 1 8W T 5 2 2Mohm R305 1 FA040101 79PQ0081 CARBON 1 8W T 5 100ohm R306 1 FA040103 79PQ0083 CARBON 1 8W T 5 10Kohm R307 1 FA330561 79PQ0155 CARBON 1 2W T 5 560ohm R308 1 FA040224 79PQ0097 CARBON 1 8W T 5 220Kohm R30C 1 FA040224 79PQ0097 CARBON 1 8W T 5 220Kohm R30E 1 FA040220 79PQ1528 CARBON...

Page 165: ...m R353 1 R0319110 JUMPER WIRE AI T 10mm R355 1 FB241502 79PQ1048 METAL 1 4W T 1 15Kohm R357 1 FA040473 79PQ0115 CARBON 1 8W T 5 47Kohm R359 1 FA040103 79PQ0083 CARBON 1 8W T 5 10Kohm R360 1 FB242002 79PQ0835 METAL 1 4W T 1 20Kohm R361 1 FA040244 79PQ1708 CARBON 1 8W T 5 240Kohm R363 1 FA040274 79PQ0102 CARBON 1 8W T 5 270Kohm R364 1 FA330154 79PQ1710 CARBON 1 2W T 5 150Kohm R365 1 FA040103 79PQ008...

Page 166: ...710 1 FA040472 79PQ0114 CARBON 1 8W T 5 4 7Kohm R712 1 FA040471 79PQ0113 CARBON 1 8W T 5 470ohm R714 1 FA040472 79PQ0114 CARBON 1 8W T 5 4 7Kohm R716 1 FA040472 79PQ0114 CARBON 1 8W T 5 4 7Kohm R717 1 FA040103 79PQ0083 CARBON 1 8W T 5 10Kohm R718 1 FA040472 79PQ0114 CARBON 1 8W T 5 4 7Kohm R719 1 FA040102 79PQ0082 CARBON 1 8W T 5 1Kohm R71F 1 FA040103 79PQ0083 CARBON 1 8W T 5 10Kohm R720 1 FA04022...

Page 167: ...T B32A 1 GB7102H3 79PQ0235 CERAMIC Y5P B T 1000P 1KV K C334 1 GE210352 79PQ0245 PLASTIC PEI T 0 01u 50V J C363 1 EJA00018 79PQ1526 DIODE 1A UF4006 D31A 1 EJA00160 79PQ1250 DIODE STKY T 1A 60V SB160 D330 1 EJAE0001 79PQ0069 DIODE T 1A SR106 D330 OR EJA00160 79PQ1250 DIODE STKY T 1A 60V SB160 D346 1 EJAE0001 79PQ0069 DIODE T 1A SR106 D346 OR FA040154 79PQ0091 CARBON 1 8W T 5 150Kohm R319 1 FB242742 ...

Page 168: ...0V 1 6A RG2Z SANKEN D118 1 80003571 DIODE 200V 2A UF2003 CHENMKO D118 OR EJ044148 79PQ0065 DIODE T 1N4148 D126 1 14300071 SCREW PL CPTS 3 8 15BF D307 1 80016491 79PQ2437 DIODE A BY329X 1500S D307 1 80001171 DIODE A 5TUZ47C TOSHIBA D307 OR 80009541 79PQ1631 DIODE FAGOR FUF5406 A K D308 1 80001131 79PQ0794 DIODE A 2A 600V RG4A D308 OR 80009261 79PQ1958 DIODE A RP3F A K SANKEN D316 1 80010981 DIODE T...

Page 169: ...SEABLE RES 1 2W A M 0 22ohm R157 1 80002031 79PQ0911 FUSEABLE RES 1 2W A M 0 22ohm R175 1 FB560222 79PQ0840 MOF 2W M A 5 2 2Kohm R302 1 80011181 79PQ1977 RESISTOR FUSEABLE 1 2W A M 22ohmR304 1 FB710829 79PQ2447 MOF 3W M A 5 8 2ohm R309 1 FB710109 79PQ2230 MOF 3W M A 5 1ohm R311 1 FB470270 79PQ0170 MOF 1W M A 5 27ohm R312 1 FB560331 79PQ1066 MOF 2W M A 5 330ohm R316 1 FB480100 79PQ0341 MOF 1W M B 5...

Page 170: ... 1 GFD274E2 79PQ2079 PLASTIC 378 A 0 27u 400V J PILKOR C332 1 GFD27482 PLASTIC PMM A 0 27u 250V J MYLAR C332 OR GFA10382 79PQ0860 PLASTIC MPE A 0 01u 250V J C345 1 GFB68482 79PQ0267 PLASTIC MPP A 0 68u 250V J C355 1 GFB24482 79PQ2241 PLASTIC MPP A 0 24u 250V J C356 1 80005801 DY WIRE DY WIRE 1 80011061 79PQ2179 N0701F LINEARITY CHOKE 76uH L302 1 HB000019 79PQ0279 CHOKE COIL 130uH 18X20 L303 1 8001...

Page 171: ...091 79PQ2285 MITSUBISHI CRT M41LRY61X22 CRT 1 A B JG071301 79PQ2499 CRT M41LRY61X22R MITSUBISHI CRT 1 R 17000831 CRT PAD T 2 5mm O D 16 I D 6 8 FOR CRT 4 17000981 MALAR SHEET MIT TUBE FOR CRT 1 10102331 79PQ2642 CABINET FRONT ASSY MC 0807 1 10102271 79PQ2643 CABINET BACK MITSUBISHI PC ABS MC 0807 1 80016891 E75 MITSUBISHI CRT GND WIRE GND WIRE 1 11000991 79PQ2466 REVOLVING STAND ASSY 1 13400841 79...

Page 172: ...m TCO WIRE 1 17000322 CABLE TIES GT 80M TIE 10 12000641 79PQ2424 CHASSIS BASE 1 15200031 79PQ0961 LABEL REV 1 80001631 79PQ0703 POWER CORD 3P 1 8 NON SHIELD COL POWER CORD 1 80016891 E75 MITSUBISHI CRT GND WIRE GND WIRE 1 13201871 79PQ2647 CARTON BOX DP74 A VER 1 15501101 79PQ2648 OWNERS MANUAL DP74 A VER 1 80015091 79PQ2285 MITSUBISHI CRT M41LRY61X22 CRT 1 17000831 CRT PAD T 2 5mm O D 16 I D 6 8 ...

Page 173: ...REAMP LM1269 R B G LM2480 CUT OFF SMPS SYSTEM ARCHITECTURE MCU E PROM DDC WT6232 24LC08 H HV V HORIZONTAL AND VERTICAL SYNC PROCESSOR TDA 4857 H V EW OUT HOUT V GEOMETRY DYNAMIC FOCUSING VERT OUT TDA 8172 HOR DEFLECT STAGE DC DC B RGB OUT LM2469 CUT OFF EH T D F I C KA3842 ...

Page 174: ...10 SCHEMATIC DIAGRAM FE770 FE770M FE771SB DPlus 74SB 10 1 ...

Page 175: ...W 1 2 1W R705 10K NC NC C319 6200P 800V PPN 5600P 800V PPN 5600P 800V PPN C321 NC 0 01u 1kV 25V 0 01u 1kV 25V C322 NC J W J W C332 3u 400V MPPS 3u 400V MPPS 3u 400V MPPS C334 1000P 1kV Y5P 1000P 1kV Y5P 1000P 1kV Y5P C345 01u 250V MPE 01u 250V MPE 0 022u 250V MPE C356 24u 250V MPP 27u 250V MPP 27u 250V MPP C357 NC 1000P 1kV Y5P 1000P 1kV Y5P C363 0 01u PEI NC NC C367 NC NC 0 01u PEI D31A UF4006 J ...

Page 176: ...SCHEMATIC DIAGRAM FE770 FE770M FE771SB DPlus74SB 10 3 ...

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