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12 Circuit Descriptions
12-1 Overall Block Structure
12-1-1 Power Tree
1. When the AD board is in DPMS state:
1.1 The IP has been designed so that it operates with a power consumption of less than 0.8W of.
1.2 The Scaler consumes power up to 37mA
1.3 The power to the panel is switched off
2. When the AD board is operating normally:
2.1 The maximum power consumption of the panel lamps is described below (It may vary depending on
the panel manufacturer)
INL: 4*(7.0mA*680Vrms)=4* 4.76W=19W CMO: 4*(7.0mA*775Vrms)=4* 5.43W=21.7W
2.2 The power consumption of the Panel Control board is as follows: 5V*700mA=3.50W
2.3 The power consumption of the Scaler is as follows: 3.3V*274mA + 1.8V*145mA = 1.24W
Summary of Contents for 2220WM - SyncMaster - 22" LCD Monitor
Page 17: ...17 4 2 No Picture VGA Mode ...
Page 18: ...18 4 3 No Picture DVI Mode ...
Page 19: ...19 4 4 No Power ...
Page 24: ...25 6 3 IP Board Part power Part 6 4 IP Board Part Inverter Part ...
Page 25: ...26 7 Wiring Diagram ...
Page 26: ...27 8 Schematic Diagram 8 1 DC DC 8 2 Input ...
Page 27: ...28 8 3 TSUMU58WHJ 8 4 Power ...
Page 28: ...29 8 5 Inverter 8 6 Keypad ...
Page 29: ...30 8 7 Audio 8 8 Ear Phone ...
Page 32: ...33 9 3 Connecting the Monitor ...
Page 33: ...34 9 4 Monitor Assembly ...
Page 39: ...40 11 PCB Diagram 11 1 Main Board 11 1 1 Main Board Top Layer 11 1 2 Main Board Bottom Layer ...
Page 40: ...41 11 2 Power Board 11 2 1 Power Board TOP Layer 11 2 2 Power Board BOTTOM Layer ...
Page 49: ...50 ...