Troubleshooting Hints, Abnormal mode detect | Daewoo L510B1 specification

TROUBLESHOOTING HINTS

1. Abnormal mode detect

Abnormal mode

detect

Yes

	Is a input			No
	H-sync of ADC(pin 90,			No


	U2) correct?
		Yes
		Yes

	Is waveform			No
	of pin 81 of ADC(U2)			No
	of pin 81 of ADC(U2)
	correct?
		Yes
		Yes


	Trouble
	in Scaler(U1).

Trouble in the H-sync

input circuit.

Trouble

in ADC.

15

Image 17

Daewoo L510B1 service manual Troubleshooting Hints, Abnormal mode detect

Contents

XGA Color Monitor Contents Fire & Shock Hazard Safety PrecautionsSafety Check Symbols in the manual General Safety InformationSymbols as marked on equipment Terms in the manual General Servicing Precautions Servicing Precautions General Soldering Guidelines Electrostatically Sensitive ES Devices Replacement IC Removal/ReplacementSmall-Signal Discrete Transistor Removal/Replacement Power IC, Transistor or Devices Removal/Replacement Technical Information Diode Removal/Replacement Abbreviations General Information Pin Signal PIN Connector Hot Key Operation and AdjustmentControl Panel Key Process Adjustment Procedure OSD Functions Adjust the width horizontal size of the screen image Self Diagnosis Standard Check point Alignment Procedure Abnormal mode detect Troubleshooting Hints Trouble in Power on No Raster One color is missing One color is missing No Video Black Power Problem Mainbord Control Block Diagram PCB Layout Control PCB Component Side Page Schematic Diagram Smps Section Exploded View & Mechanical Parts List Information of Part Description Important Safety Notice PART-NAME PART-DESC Electrical Parts List Line Across FB2 Carbon Film