Acer G195HQ manual No Picture LED is orange

Page 34

2) No Picture (LED is orange)

No picture

The button if under	NG
control

OK

Measure U701 Pin2=3.3V, C704(+)=1.8V

OK

X401 oscillate waveform is normal

X401 oscillate waveform is normal

OK

Check reset circuit of

U401 is normal

OK

Replace U401

NG

NG

Replace X401

NG	Check Correspondent
	component

NG

OK

Check HS/VS from

CN101 is normal

NG

OK

Replace U401

Check U701, Q702 and Q703

Replace X401

Check Correspondent component

34

Image 34

Contents Acer G195HQ Service Guide T89AM6D8MXAFH2 Service Guide Version and RevisionT89AM5D8MXAFN2 Trademarks CopyrightDisclaimer ConventionsPreface Precautions Special Notes on LCD MonitorsTable of Contents Scope Chart of G195HQIntroduction DescriptionStandard Test Conditions Electrical Requirements of G195HQMeasurement systems TTL LCD Monitor General SpecificationEPA Energy Star G195HQ LCD Panel Specification of G195HQ General SpecificationsOptical Specifications Factory Preset Timing of G195HQ Monitor Block Diagram DVI Main Board DiagramT89AM6D8MXAFH2 Dual-Input Model RGBMosfet Power Board DiagramON/OFF DIM Software Flow Chart Remark Main Board Layout Symbol Description715G2883 1 Installation Screen Position Adjustment Attaching / Removing the BaseVolume Up / Down User ControlsAdjusting the OSD settings EColor Management OSDPage Page Using the Right Power Cord Tool for disassembly is as follows Disassembly ProcedurePage Page Lvds Cable Page Panel Main Board 1 No Power OkngNo Picture LED is orange Panel Power Circuit OK NGKey Board Power Board No powerNo Backlight Connector Information Exploded Diagram Model G195HQ FRU Field Replaceable Unit List ChapterDescription TPV Part No Acer Part No `ty Part List Picture Description TPV Part No Acer Part NoKEPC9QKO Page Main Board DDC2SCL DDC2SDAAO3401L TSUM5PFHL Lock type DSUBB+ LVB0M RXO0 CBPC9M5AFQN TSUM1PEL Power board Dbrt VIN Key board AUTO1K