Samsung 305TPLUS, LHU30BS service manual No Video Digital

Page 54

4 Troubleshooting

4-3 No Video (DIGITAL)

Check signal cable connection and

power.

1X200 oscillate properly?

Yes

Is there input data at

8 9

R122, R124, R127, R128,

R129 and R130?

Yes

Is there wave from 3 4 Does the output signal appear

at Pin 2, 3 of CN401?

Yes

Is there wave form 7 at pin 13 of CN401?

Yes

Replace LCD Panel.

No

No

No

No

Replace or check related circuit.

Check input part.

Check LCD Panel and related circuit.

Check the LCD_ON at pin 33 of

IC200

4-4

Image 54
Contents LCD-Monitor Page Required Equipment DDC Edid Data InputHidden Key list Edid Installation with Dos Program Edid Installation with Windows Program After Replacing the Main BoardMemo Block Diagram Main Block Diagram Smps Circuit Descriptions Block discription MainBlock Description Name Micom Block discription Smps Block Description Name Disassembly and Reassembly DisassemblyDescription Picture Description Description Picture Description Reassembly Electrical Parts List Level Loc. No Code No 2007-000070 2007-000075 C120 LS17VDP Others Assy MICOM-SPZ,W/WLS30HUB*,W/W CIS Exploded View and Parts List 1. LS30HUXCB/XSF Parts List Product Features Component & FunctionInstallation Instructions DVIPCB Diagram PCB Diagram Smps Precautions Safety PrecautionsServicing Precautions Static Electricity PrecautionsInstallation Precautions Memo Fashion Feature Spec ComparisonSpecifications Spec Comparison to the Old Models LHU30BS305T PlusOption Specification CODE.NOReference Infomation Technical TermsDot Pitch Connecting Your Monitor Pin Assignments Sync 24P DVI-D Type Pin NoTiming Chart Horizontal Frequency Panel Description Dellzpd PVA ZPD14-8 14-9 14-10 14-11 14-12 Troubleshooting No Power SmpsWaveforms No Power Main No Video Digital Waveforms Memo Wiring Diagram Wiring Diagram Smps PCB Schematic Diagrams Connection Diagrams Micom Diagrams Power inverter Schematic Diagrams Waveforms Smps Schematic Diagrams Smps Schematic Diagrams Waveforms
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