Philips 241B4LPCB/00, Service Manual

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0.1 M4 241S4 / 241B4 24” Wide 16:9 LCD Monitor
2011/07/12 PHILIPS 6 of 20
2 241B4LP LCD
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EPA 5.0 spec. < 33.97 watt
EPA 5.0 measure data < 25 watt
2.3 Ambient temperature:
0 q C - 40 q C
2.4 Power Range
FULL RANGE POWER SUPPLY 90 – 264 VAC
3 Electrical characteristics
Scaler should be capable of below items.
1) Scaler must support color engine for Image enhancement feature (SmartImage)
2) Scaler must have enough memory to support PerfecTune feature and Philips OSD
3) Scaler must support SmartContras, 20M:1 SCR preferred
4) VGA signal Auto adjustment:
Monitor automatically adjusts and optimizes resolution and frequency based on input signal
defined by “Source” function. “NO VIDEO INPUT” message to be displayed on screen while no
signal is detected. Monitor will automatically optimize resolution and frequency whenever
connected to different signal source. When press the “Auto”, the screen also show a status bar.
During adjustment period, a status bar will show on screen from 0% to 100% to indicate the
progress of adjustment.
Auto adjustment :
New timing & preset modes ( non- factory preset mode) should do auto
adjustment at first time detection and save the related data into memory.
Resolution
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800x600 , do not do auto auto adjustment.
Interface signals
1). D-Sub Analog
Input signal : Video, H/V sync
Video : 0.7 Vp-p, input impedance, 75 ohm @DC
Sync. : Separate sync
TTL level , input impedance 2.2k ohm terminate
Hsync : Positive/Negative
Vsync : Positive/Negative
Composite sync TTL level, input impedance 2.2k ohm terminate (Positive/Negative)
Sync on green video 0.3 Vp-p Negative (Video 0.7 Vp-p Positive)