Philips V30 manual Check sync

Page 77

Repair Flow Chart (Continued)		107T5			77
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E.CPU check list

Basic Check

31. H-EHT

10,11, (Q2,Q1) S-cap switch

33,34,40,41 Hsync / Vsync

check cpu pin6= 5V pin9/pin8=12MhZ

pin7=gnd

H size compensation for

the load variance

check Q1-Q2 Pin 35~28

low : 0

hi :1

			1 . Normal
			Fhout=Fhin
			Fhout=Fhin
check sync.			Fvout=Fvin
Hsync_in=pin40			2. Self test
Vsync_in=pin41			Hout=48Khz
Vsync_in=pin41			Hout=48Khz
Hsync_out=pin34			Fvout=72Hz
Vsync_out=pin33			3.sync out of rang
			Fhin>72.8kHz,<28kHz
			Fhin>72.8kHz,<28kHz
			Fvin>168Hz, <45Hz

Vblank

20 LED driver

23. Degauss

check pin 3 Normal=vblank Pulse

Blank=Hi

pin 22 OFF

check active=hi

no active=low

power saving	pin22
Normal	hi
Standby	low
Off	low

5, Reset			check		check
5, Reset			from 0V to 5V	2801 / 3801
			from 0V to 5V	2801 / 3801

Image 77

Contents Auto Scan Colour Monitor ChassisV30 ServiceImportant Safety Notice This monitor has 8 factory-preset modes as indicated Technical DataRear view Front control Front ViewOSD Tree OSD menu treeLanguage Brightness OSD AdjustmentsZoom Adjust Shape Adjust Side Angles Reset to Factory Settings Extra Controls Adjust Moire Degauss OSD Adjustments , TroubleshootingLock/Unlock, Factory Mode, Burn In, Service Mode Wiring Diagram Mechanical Instructions CRT grouding wirel Video PanelGeneral Clip Pedestal assy ScrewScrew Video panel Main panel Main panel with Bottom TrayESD Are indicated by the symbolGeneral point ========== Electrical InstructionsPre warm-up ========== Main chassis alignment ==================CRT Focus adjustment ============= Adjustment procedureAdjustment of Moir ================ Default settings ==============General DDC InstructionsInstallation of EDID301.EXE Method 1 Start on DDC program Configuration and procedureThis is for initialize alignment box Method 2 After create a shortcut of EDID301.EXEModify DDC data verify Edid version, week, year Videocard PrinterportLTP1 DC Power ~12 Video cableRead DDC data from monitor Modify DDC data Monitor Serial NoSave DDC data Confirm Serial Number in User ModeWrite DDC data Exit DDC program DDC only was disabled as shown in FigLoad DDC data PHL Hex Data of DDC2B27X 28X 107T5 Function Block of V30 107T5 VideoMain PCB Schematic Diagram of Main board107T5 A. of Main board A. of Main board Video PCB Schematic Diagram of Video boardA. of Video board A. of Video board Control PCB Schematic Diagram of Control boardA. of Control board Exploded View Model V30 107T50/00 Recommend Parts ListModel V30 107T50/00 Spare Parts ListAudio Panel LOW Emission MPRII/TCO99/TCO95 optional General Product SpecificationIndex 5903 General description Electrical characteristicsIntroduction 64.0 KHz 60Hz Vesa Factory preload modes Sync width 069 ms Sync polarity Total size 11.764 Display sizeDisplay size 11.093 Rear porch 222 us 578 ms Sync width Total size 21.333 13.333 Display size 16.162 = 12.8 ms Rear porch 200 us 607 ms Sync width 106 ms Sync. polarity Display size 12.552 Rear porch 911 us 784 ms Sync width Total size 13.853 Display sizeTotal size 13.417 Display size 59012 Vertical scanning Scanning frequency 50 160 Hz Shift range Power supplyImplosion protection By P-Mini-rim-band 25.0 1 KV Ib=0Display Light Output MVpp cross hatch 100% Image size For preset modes onlyMax Max. Y. min Non-linearity = 100%For SRGB = 0.313 For 6500 K 015Belgium SwitzerlandSweden Finland Norway200 Tilt and swivel base Tilt angleSets Layer Block Blocks / Container Total Sets Nsta Taiwan FinlandNBR. of Failure Sets Practice of Mtbf =FIG-1 Image Dimension FIG-2 Image Centering FIG-3 Image Rotation FIG-4 Image Geometry FIG-5 Contrast and Brightness Measurement Area FIG-6 Misconvergence 230 mm Focus check character Repair Flow Chart 2V ABL = +Check list CheckRepair Flow Chart Check sync Check idle status sda=pin32=hi scl=pin31=hi EepromEwdrv Vblk LightFrame for Windows InstallationDefinitions CompatibilityLightFrame for Windows UninstallHow To Activate LightFrame How to Deactivate LightFrameOperating LightFrame Icon and ColorsUser clicks off or full screen First target selected Window restored LF suspendUser clicks full Screen button Full screenGeneral cautions on handling and storage Repair TipsRemoval of SMDs Attachment of SMDsTest 2820VDC 1700VDC Voltage 2000VAC 1200VAC Safety test requirementsTest current 25A,AC Test time Required =0.09+R ohm, R is the resistance of the mains cordBuzzing sound when powering on General Troubleshooting GuideOSD main Menu lockedYES END No DISPLAY, but LED is on Or LED is amberyellowPicture is too bright or dark SettingsPlug & Play is not Active normally Power management function is not active Buzzing sound when powering on No Power / LED is off YES Color has IrregularityPress the OK Picture distortion is Not adjusted normallyPicture is not stable Need to change display size and adjust distortion Color Patterns visible On the screen Moire OSD Main Menu Locked Video system Problem Environment problemIt is need to check Repair the monitorMissing Color Does degaussing resolve ? Color Purity104 107T5 107T5 105 CustoMax Colorific USB 107T5 109