7-20
2.8 DDC circuit description
2.8.1 Analog circuit
2.8.2 Digital circuit
2.8.3 General description
The EEPROM for DDC are two pieces (IC26, IC14) in analog and digital. The EDID of both IC are same data.
IC26 has DDC1 mode and DDC2B mode, but this circuit supported only DDC2B mode. IC14 only has
DDC2B.
The DDC2B communication uses the same line as Input 2 port. This mode activate at factory adjustment.
Therefore it is set into inactive in shipment. The DDC2B communication is processed in SUB-CPU.
Both Input port operates similar on DDC2B communication. Then following explanation is for D-SUB circuit.
When the power supply of the set is turned OFF, the VDD of IC26 is applied to Pin 9 of W01 and power is
through the D09. When the power supply of the set is turned ON, VDD is applied to IC22 through D09. Same
principle of IC14.
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 ...