Acer B193R manual Panel Power Circuit, Ok Ng

Page 32

3. Panel Power Circuit

White screen

Measure Q301 base is high level?

OK

Check CN402 is solder and Q301, Q302 is OK?

NG

X201 oscillate waveform is normal

OK NG

Check reset circuit of

U203 is normal

Replace X201

Check Correspondent	NG
Check Correspondent
component.

OK

Replace PANEL

NG	Check Correspondent
	component.

OK

Replace U203

32

Image 32

Contents Acer B193R Service Guide Service Guide Version and Revision Version Release Date Revision History TPV modelCopyright DisclaimerTrademarks ConventionsPreface Precautions Special Notes On LCD MonitorsTable Of Contents Chart of B193R IntroductionScope DescriptionMeasurement systems Electrical RequirementsStandard Test Conditions LCD Monitor General Specification TTLElectrical Characteristics LCD Panel SpecificationGeneral Specifications Optical Specifications Support Timing Monitor Block Diagram Main Board Diagram Software Flow Chart Remark Symbol Description Main Board LayoutInstallation Height Adjustment Attaching/Removing The BaseMonitor Pivot TiltSwivel External Controls Front panel controlsEColor Management OSD How to Adjust a Setting Adjusting the picture Page Using The Right Power Cord LogoDisassembly Procedure Page Page No Power OkngNo Picture LED is orange Panel Power Circuit OK NGKey Board Power Board No power LED No Backlight Connector Information DVI Connector Exploded Diagram Model B193R ChapterPart List Picture DescriptionFFC Cable Main Board 2007/05/08170A8/90B8 Modify Lvds Output Power board Feedback Layout CN603 Key board