Acer LCD-S243HL service manual Status Sync Video Power, Backlight Power Supply Items Specification

Acer				Acer –LCD-S243HL
		+5V output	<200mv	See note 2
				With system
		Audio 5V output	<500mv
	DC Output Voltage	+5V output	Vcc5V:4.85V~5.35V
		Audio 5V output	audio 5v:4.8V~5.3V
	DC output loading capability		Vcc5V/1.0A
			Audio 5V/1.0A
	Rise Time		<50mS
	Dynamic load change
	Overshoot		<10%
	Efficiency		≥80%

Note 2: Tested by DC loading side parallel with a 47uF/EC and 0.1uF/Ceramic Capacitors and measured

band-width with DC-20MHz.

Table-1

Status	H-sync	V-sync	Video	Power
Power On	on	on	active	≤ 32W
	off	on	blanked	< 1W
Power Saving
	on	off	blanked	< 1W
	off	off	blanked	< 1W
Power Off	--	--	--	< 1W

LED

Blue

Amber

Amber

Amber

Off

3.2 Backlight Power Supply

Items			Specification
Panel	M240HW01 V6		2*8Bar LED
Input Voltage	18---20V
Input current	1.2A (Typ.), 1.5A (Max.)
On/Off switch level	3.6V≧V on≧ 2.0 V		(on)
	-0.3v ≤ V off ≤ 0.8 V		(off)
Brightness PWM Duty (ACM Off)	30%~100%
Brightness PWM Duty (ACM On)	0%~100%
LED operating Voltage	38Vrms(min);40.6Vrms (Type); 44.2Vrms (max)
LED Current
	20mA	(Typ.)
	25mA	(Max.)
Efficiency	≥80%