6-9
4. Others operational error
4.1 DDC read error
1) D-SUB
•
Check the power supply for IC26.
•
Check the clock signal waveform at Pin 6 of IC26 and the data waveform at Pin 5.
2) DVI
•
Check the power supply for IC14(24C02).
•
Check the clock signal waveform at IC14 Pin 6 and the data waveform at Pin 5.
4.2 Back light malfunction
•
Check for loose cabbles, if any.
•
Is 12V available at W05 Pins1, 2, 3?
•
Is W05 Pin 8 maintained at 4.5V or above, and Pin7 at 0~5V ? If there is still no lighting even though the
above-mentioned voltages are maintained, then the inverter PCB is considered to be out of order.
Summary of Contents for LCD1920NX BK - MultiSync - 19" LCD Monitor
Page 4: ...1 1 USER S MANUAL 1 A Version MultiSync LCD1920NX TM ...
Page 49: ...3 6 SYMBOL CODE DESCRIPTION 15 79PZ0004 LCD MODULE 19 0 TFT FLC4 15 ...
Page 100: ...7 9 2 4 3 Circuit diagram ...
Page 172: ...MODEL LCD1920NX LCD MAIN BD 1 7 SCHEMATIC DIAGRAM 10 1 Schematic Diagram ...
Page 173: ...MODEL LCD1920NX LCD MAIN BD 2 7 SCHEMATIC DIAGRAM 10 2 ...
Page 174: ...MODEL LCD1920NX LCD MAIN BD 3 7 SCHEMATIC DIAGRAM 10 3 ...
Page 175: ...MODEL LCD1920NX LCD MAIN BD 4 7 SCHEMATIC DIAGRAM 10 4 ...
Page 176: ...MODEL LCD1920NX LCD MAIN BD 5 7 SCHEMATIC DIAGRAM 10 5 ...
Page 177: ...MODEL LCD1920NX LCD MAIN BD 6 7 SCHEMATIC DIAGRAM 10 6 ...
Page 178: ...MODEL LCD1920NX LCD MAIN BD 7 7 SCHEMATIC DIAGRAM 10 7 ...
