ViewSonic VS12335-1M, Руководство по обслуживанию

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LCD panel of this product shall be provided by “CMO” with a model number of M236H1-L01.The
following table defines this panel specification. Any changes in panel must be pre-approved by
ViewSonic in written.
Parameter Specification
LCD Type
a-Si TFT Active Matrix Wide Color, Transmissive Mode,
Normally Black
LCD Interface 1-Channel LVDS
Resolution (Native) 1920 x 1080
Display Area 23.6” diagonal; 521.28 (H) x 293.22 (V) mm
Pixel Pitch 0.2715 (H) x 0.2715 (V) mm
Viewing Angle H = 170, V = 160 with CR ≥ 10 (Typical)
Contrast Ratio 1000:1 (Typical)
Brightness 300 nits (Typical)
Response Time 5 ms, (Typical), g-g
Brightness Uniformity 75% (Min), measured per panel spec.
Chromaticity(CIE1931) White-x:0.313,White-y:0.329 (Standard Mode Only)
Colors 16.7M (8-bits)
Surface Treatment Hard coating (3H)
Backlight 4 CCFLs (Cold cathode Fluorescent Lamp)
Preset Color Panel Default
Gray Scale 0-255
Rated Life (Backlight) > 50KHrs*(ILO at 3.0mA)
Front Screen Artifacts
VS Standard:
a.) No Visible Streaking, Sag or Smearing artifacts when
driven by the specified video cards (see 7.1 General Test
Equipment) in the primary mode (VGA & 60 Hz) and after
user adjustment
b.) No image drift or lose fine-tune settings due to panel
temperature change.
Panel Acceptance Spec
Refer to the panel acceptance criteria specification.
Note: Intermittent and/or Display Pattern defects which result
in further bright or dark dots will be counted individually
against the above specification.
Note: Also refer to the panel defect acceptance specification.
Panel performance characteristics “ MUST BE” met in all display modes/inputs at standard test
conditions.
1. RF Tuner
RF tuner of this product shall be provided by “Samsung DTVS205CH201A” for NTSC/ATSC. The
following table defines this tuner specification.
Parameter Specification
RF Tuning Range
NTSC/ATSC: 55.25 to 803 MHz, 2-69 Channels for Off-Air and
1-125 Channels for CATV
RF Tuner Sensitivity (S/N
Ratio at un-weight)
44 dB (min.)// 48 dB (max.)
Channel Bandwidth NTSC/ATSC/Digital Cable: 6 MHz Maximum
CVBS Characteristics:
Video Amplitude Signal
0.8(min.)–1.2(max.) V
Audio Characteristics:
SIF out level
500mV (typ.)
Compatible system TUNER NTSC/ATSC/QAM
Compatible system AV NTSC M
2. Specification
ViewSonic Corporation 3 VT2430-1M
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