Buzzing sound when powering on | Philips V30 specification

92

107T5

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General Troubleshooting Guide

5

A buzzing sound when powering on

This sound is caused when the auto degaussing circuit is active. This buzzing sound is normal when the monitor is first turned on. This sound may be louder during the winter months and during initial power on.

OK	NO
	NO
YES
	It is need to check and
END	repair the monitor.

Image 92

Philips V30 manual Buzzing sound when powering on

Contents

Service Auto Scan Colour Monitor ChassisV30 Important Safety Notice Technical Data This monitor has 8 factory-preset modes as indicated Front View Rear view Front control OSD menu tree OSD Tree OSD Adjustments Language Brightness Zoom Adjust Shape Adjust Side Angles Reset to Factory Settings Extra Controls Adjust Moire OSD Adjustments , Troubleshooting Degauss Lock/Unlock, Factory Mode, Burn In, Service Mode Wiring Diagram CRT grouding wirel Video Panel Mechanical InstructionsGeneral Clip Pedestal assy Screw Main panel with Bottom Tray Screw Video panel Main panel Are indicated by the symbol ESD Electrical Instructions General point ==========Pre warm-up ========== Main chassis alignment ================== CRT Adjustment procedure Focus adjustment =============Adjustment of Moir ================ Default settings ============== DDC Instructions General Configuration and procedure Installation of EDID301.EXE Method 1 Start on DDC programThis is for initialize alignment box Method 2 After create a shortcut of EDID301.EXE Videocard PrinterportLTP1 DC Power ~12 Video cable Modify DDC data verify Edid version, week, yearRead DDC data from monitor Modify DDC data Monitor Serial No Save DDC data Confirm Serial Number in User ModeWrite DDC data Exit DDC program DDC only was disabled as shown in FigLoad DDC data Hex Data of DDC2B PHL 27X 28X 107T5 Video Function Block of V30 107T5 Schematic Diagram of Main board Main PCB 107T5 A. of Main board A. of Main board Schematic Diagram of Video board Video PCB A. of Video board A. of Video board Schematic Diagram of Control board Control PCB A. of Control board Exploded View Recommend Parts List Model V30 107T50/00 Spare Parts List Model V30 107T50/00 Audio Panel General Product Specification LOW Emission MPRII/TCO99/TCO95 optional Index 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 Power supply Vertical scanning Scanning frequency 50 160 Hz Shift rangeImplosion protection By P-Mini-rim-band 25.0 1 KV Ib=0 Display Light Output MVpp cross hatch Image size For preset modes only 100%Max Max. Y. min Non-linearity = 100% For 6500 K 015 For SRGB = 0.313 Switzerland BelgiumSweden Finland Norway 200 Tilt and swivel base Tilt angleSets Layer Block Blocks / Container Total Sets Nsta Finland Taiwan Practice of Mtbf = NBR. of Failure Sets 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 Check list Repair Flow Chart Check sync Eeprom Check idle status sda=pin32=hi scl=pin31=hi Ewdrv Vblk Installation LightFrame for WindowsDefinitions Compatibility Uninstall LightFrame for Windows How to Deactivate LightFrame How To Activate LightFrameOperating LightFrame Icon and Colors First target selected Window restored LF suspend User clicks off or full screenUser clicks full Screen button Full screen Repair Tips General cautions on handling and storageRemoval of SMDs Attachment of SMDs Safety test requirements Test 2820VDC 1700VDC Voltage 2000VAC 1200VACTest current 25A,AC Test time Required =0.09+R ohm, R is the resistance of the mains cord General Troubleshooting Guide Buzzing sound when powering onOSD main Menu locked No DISPLAY, but LED is on Or LED is amberyellow YES END Settings Picture is too bright or dark Plug & Play is not Active normally Power management function is not active Buzzing sound when powering on No Power / LED is off Color has Irregularity YES Picture distortion is Not adjusted normally Press the OK Picture is not stable Need to change display size and adjust distortion Color Patterns visible On the screen Moire OSD Main Menu Locked Environment problem Video system ProblemIt is need to check Repair the monitor Missing Color Color Purity Does degaussing resolve ? 104 107T5 107T5 105 CustoMax Colorific USB 107T5 109