Philips 298P4QJEB/00 Service Manual page 97

Scanning frequencies
Hor. : 15 – 99 K Hz
Ver. : 23 - 76 Hz
Video dot rate:
displayed while over 330 MHz (supplier to provide accurate scaler bandwidth number)
Power input: 90-264 V AC, 50/60
Functions:
(1) D-SUB analog R/G/B separate inputs, H/V sync separated, Composite (H+V) TTL level,
(2) SOG sync : a. Sync select: H + V
(3) DVI digital Panel Link TMDS inputs, HDCP supported.
Ambient temperature:
0 C - 40 C
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 DCR 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 auto adjustment : new timing & preset modes ( non- factory preset mode) should do auto
date into memory.
Interface signals
1). D-Sub Analog
Input signal
Sync.
Composite sync TTL level, input impedance 2.2k ohm terminate
Sync on green video 0.3 Vp-p Negative (Video 0.7 Vp-p Positive)
2). DVI-D Digital
Input signal: Single TMDS link (Three channels: RX0-/+, RX1-/+, RX2-/+)
3) HDMI ( option , refer to Quick specification table)
< 300 MHz for VGA and < 170 MHz for DVI & DP, warning message must be
b. Sync select: SERR
: Video, Hsync., Vsync
Video : 0.7 Vp-p, input impedance, 75 ohm @DC
: Separate sync
Hsync Positive/Negative
Vsync Positive/Negative
TMDS channel:
DDC channel:
2 Hz
adjustment at first time detection and save the related
Resolution: 640*480,720*400,640*350, 640*400 , do not
do auto auto adjustment.
TTL level , input impedance 2.2k ohm terminate
Carries audio, video and auxiliary data.
Signaling method: According to DVI 1.0 specification.
Single-link (Type A HDMI).
Video pixel rate: 25 MHz to 165 MHz (Type A)
Pixel encodings: RGB 4:4:4, YCbCr 4:2:2, YCbCr 4:4:4.
Audio sample rates: 32 kHz, 44.1 kHz, 48 kHz
Audio channels: 2.
Meridian 3
97
(Positive/Negative)