Philips V30 manual Are indicated by the symbol, Esd

Page 17

Warning and Notes

107T5

 

17

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Warnings

1. Safety regulations require that the unit should be returned in its original condition and that components identical to the original components are used. The safety components

are indicated by the symbol

.

2. In order to prevent damage to ICs and transistors, all high-voltage flash-overs must be avoided. In order to prevent damage to the picture tube, the method shown in Fig. 1 should be used to discharge the picture tube.

Use a high-voltage probe and a multimeter (position DC-V). Discharge until the meter reading is 0 V (after approximately 30 seconds).

3. ESD

All ICs and many other semiconductors are sensitive to electrostatic discharges (ESD). Careless handling during repair can drastically shorten their life. Make sure that during repair you are connected by a pulse band with resistance to the same potential as the ground of the unit. Keep components and tools also at this same potential.

4. When repairing a unit, always connect it to the AC Power voltage via an isolating transformer.

5. Be careful when taking measurements in the high-voltage section and on the picture tube panel.

6. It is recommended that saferty goggles be worn when replacing the picture tube.

7. When making adjustments,use plastic rather than metal tools. This will prevent any short-circuit or the danger of a

circuit becoming unstable.

8. Never replace modules or other components while the unit is switched on.

9. Together with the defleciton unit, the picture tube is used as an integrated unit. Adjustment of this unit during repair is not recommended.

10.After repair, the wiring should be fastened in place with the cable clamps.

11.All units that are returned for service or repair must pass the original manufactures safety tests.

Notes

1.The direct voltages and waveforms are average voltages. They have been measured using the Service test software and under the following conditions :

-Mode : 640 * 480 (31.5kHz / 60Hz)

-Signal pattern : grey scale

-Adjust brightness and contrast control for the mechanical mid-position (click position)

2.The picture tube panel has printed spark gaps.

Each spark gap is connected between an electrode of the picture tube and the Aquadag coating.

3.The semiconductors indicated in the circuit diagram(s) and in the parts lists are completely interchangeable per position with the semiconductors in the unit, irrespective of the type indication on these semiconductors.

V

Fig.1

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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
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