Acer AT4250B series, Service Manual

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14 1280x768 60
15 1360x769 60
16 1280x720/50
17 1280x720/60
18 576P/50
19 1920x1080i/50
20 1920x1080i/60
This LCD TV shall have 10 or more user modes for user to creat own timing.
Power Saving
While VGA is selected to be input, this LCD TV is equipped with a power-management according to VESA
DPMS. There is a delay of 30 seconds before the transition from On-state to power saving state to avoid
unintentionally entering of a power saving state during display resolution and timing mode changes. During
the period of delay, the LED shall indicate green color and OSD will show “ NO VGA CONNECTION “.
Transition from any power saving state to another can be instantaneous. The recovery from Off-state
requires no manual power on.
Mode Hsync Vsync Video Power Indication Recovery time
Power-On On On Active < 161W Green --
Stand-by Off On Off < 5W Red <5s
Suspend On Off Off < 5W Red <5s
Off-state Off Off Off < 5W Red <5s
Power off × × × < 5W Dark Turn on < 5s
Sync on means: normal operation
Sync off means: Hsync: f < 1 KHz, duty cycle > 25 %, Vsync: f < 10 Hz, duty cycle > 25 %
The power-consumption is valid over the specified voltage and frequency range.
Power comsuption is measured from AC source.
There are no power saving modes for TV, SCART1/2 or HDMI1/2 or AV3 inputs.
Performance Specifications
The performance shall be check at 25
o
C environment.
White Balance and Uniformity
Chapter1 10