NEC MultiSync LCD2080UX -BKA Service Manual page 88

INSPECTION
TABLE OF CONTENTS
1. Set Inspection ............................................................................................................................ 5-2
1.1 Application ........................................................................................................................... 5-2
1.2 Inspection Conditions .......................................................................................................... 5-2
1.2.1 Power Source Voltage .................................................................................................. 5-2
1.2.2 Equipment to be Used .................................................................................................. 5-2
1.2.3 Inspection Cables/Connections .................................................................................... 5-2
1.2.4 Brightness Setting ......................................................................................................... 5-2
1.2.5 Inspection Mode ............................................................................................................ 5-2
1.2.6 OSM Functions ............................................................................................................. 5-2
1.2.7 Configuration of Inspection Jigs .................................................................................... 5-2
1.2.8 Inspection Mode Setting ............................................................................................... 5-3
1.3 OSM Control Operation ....................................................................................................... 5-5
1.3.1 Switch Functions ........................................................................................................... 5-5
1.3.2 Basic Operational Procedures ...................................................................................... 5-5
1.4 POWER ON ......................................................................................................................... 5-6
1.5 Inspection ............................................................................................................................ 5-6
1.5.1 How to Control a Menu ................................................................................................. 5-6
1.5.2 Inspection of LCD Brightness and Contrast .................................................................. 5-8
1.5.3 Inspection of Automatic Adjustment Function ............................................................... 5-8
1.5.4 Analog Delay Operation Check ..................................................................................... 5-8
1.5.5 HSYNC Threshold Changeover Check ......................................................................... 5-9
1.5.6 SOG SYNC correction Check ....................................................................................... 5-9
1.5.7 Color Temperature Check ............................................................................................. 5-10
1.5.8 Inspection on Input Signal Identification ....................................................................... 5-11
1.5.9 Inspection on VIDEO DETECT Function ...................................................................... 5-13
1.6 Setting before Shipment ...................................................................................................... 5-15
1.7 Safety Test ........................................................................................................................... 5-15
1.7.1 Input Current Measurements ........................................................................................ 5-15
1.7.2 Power Source/Earth Connections ................................................................................. 5-15
1.7.3 Dielectric Strength Test ................................................................................................. 5-16
2. External Inspection on the LCD Module .................................................................................... 5-17
2.1 External Inspection of the Display Surface .......................................................................... 5-17
2.1.1 Inspection Items ............................................................................................................ 5-17
2.1.2 Inspection Standards ..................................................................................................... 5-17
3. Inspection of PLUG & PLAY Communication and OSM "MONITOR
INFORMATION" for Model Name/ Serial Number .................................................................... 5-22
3.1 System Construction ............................................................................................................ 5-22
3.2 Input Signal .......................................................................................................................... 5-24
3.3 Program ............................................................................................................................... 5-24
3.4 Operation ............................................................................................................................. 5-24
3.4.1 EDID Data Inspection and Writing to the DVI Connector (Input 1) Analog ................... 5-24
3.4.2 EDID Data Inspection and Writing to the DVI Connector (Input 1) Digital .................... 5-27
3.4.3 EDID Data Inspection and Writing to the D-SUB Connector (Input 2) Analog .............. 5-27
3.4.4 EDID Data Writing to the D-SUB Connector (Input 2) Digital ....................................... 5-27
3.4.5 EDID Data Inspection to the DVI-D Connector (Input 2) Digital ................................... 5-28
3.4.6. OSM Model Name and Serial Number Check ............................................................. 5-28
3.5 EDID Data File ..................................................................................................................... 5-28
5-1
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