NEC AccuSync LCD51VM Series Service Manual page 63

INSPECTION
TABLE OF CONTENTS
1. General Description ------------------------------------------------------------------------------------------ 5-2
2. Electrical Characteristics ------------------------------------------------------------------------------------ 5-3
2.1 Power Supply --------------------------------------------------------------------------------------------- 5-3
2.2 LCD without Acrylic Panel ----------------------------------------------------------------------------- 5-4
2.3 Video Interface -------------------------------------------------------------------------------------------- 5-4
2.4 Audio System --------------------------------------------------------------------------------------------- 5-5
2.5 External Inspection on the LCD Module ------------------------------------------------------------ 5-7
3. Electrical Inspection ------------------------------------------------------------------------------------------ 5-11
3.1 Function switch check ---------------------------------------------------------------------------------- 5-11
3.2 Frequency change --------------------------------------------------------------------------------------- 5-11
3.3 Performance Check ------------------------------------------------------------------------------------- 5-11
3.4 Check Power Manage Function ---------------------------------------------------------------------- 5-11
3.5 Inspection on Audio function -------------------------------------------------------------------------- 5-12
4. Safety Test ------------------------------------------------------------------------------------------------------ 5-13
4.1 Input Current Measurements -------------------------------------------------------------------------- 5-13
4.2 Power Source/Earth Connections -------------------------------------------------------------------- 5-13
4.3 Dielectric Strength Test --------------------------------------------------------------------------------- 5-14
4.4 Leakage Current Test ----------------------------------------------------------------------------------- 5-14
4.5 Insulation Resistance Test ----------------------------------------------------------------------------- 5-15
5. Inspection of PLUG & PLAY Communication and OSM "MONITOR INFORMATION"
for Model Name/ Serial Number --------------------------------------------------------------------------- 5-16
5.1 System Connection -------------------------------------------------------------------------------------- 5-16
5.2 Input Signal ------------------------------------------------------------------------------------------------ 5-16
5.3 Program ---------------------------------------------------------------------------------------------------- 5-16
5.4 Operation --------------------------------------------------------------------------------------------------- 5-17
5.5 EDID Data File -------------------------------------------------------------------------------------------- 5-20
5.6 EDID Write Protect Cancel Signal Timing ---------------------------------------------------------- 5-20
Appendix Reference Signal Timings ---------------------------------------------------------------------- 5-21
5-1
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