Hyundai ImageQuest L17T Manual de funcionamiento
TFT LCD COLOR MONITOR
TECHNICAL SERVICE MANUAL
L17T
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L17T Technical Service Manual
1 FORWORD
This document defines design and performance requirements for Hyundai 17.0" On Screen Display
Color TFT LCD monitor L17T. It is capable of displaying maximum 1,280 horizontal dots and 1024
vertical lines resolution image.
It also offers Power Management and DDC2B features according to VESA proposal.
2 GENERAL DESCRIPTION
The monitor described in the followings is based on a multi- scanning, digital control display, 17.0
inches diagonal. The monitor is intended to be a finished product, basically a display device mounted
inside a plastic enclosure which will provide the aesthetic, ergonomic and safety requirements.
2.1 LCD Descriptions
¬Model Name : M170EN05
¬Display Area : 337.92(H) x 270.336(V) mm
¬Drive system : A - Si TFT active matrix
¬Display Colors : 262K Colors
¬Number of pixels : 1280 x 1024
¬Module Size : 358.5 (H) x 296.5(V) x 19.0 typ. (D) mm
¬Weight : 2,000g (TYP.)
¬Contrast ratio : 450:1 (Typ.)
¬Luminance : 260cd/m
'
(Typ)
Control De cription
Front View
--2--
Power Switch
LED Indicator
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L17T Technical Service Manual
ELECTRICAL CHARACTERISTICS
3.1 Analog R.G.B Input
The input signal shall be applied to the display device through a signal cable, which must be
intended as part of the monitor.
A signal connector shall be a shielded 15pin D- Sub connector and signal cable shall be Black or
White, 1.50
¡
0.05 meter long.
The interfacing method described above requires 7 input lines :
1 - Red (red video)
2 - Green (green video)
3 - Blue (blue video)
4 - H Sync (horizontal synchronization)
5 - V Sync (vertical synchronization)
6 - SDA
7 - SCL
The reference video controller (the device used for adjustment and test) will guarantee the
performances described below (measured on the output connector).
Video signals on 75 ohm termination to the ground
Red, Green & Blue Video (refer to Fig.3.01)
Level : 0 to 0.700 Vpp
Polarity : Positive
700mV
2.74mV
Blanking
Fig. 3.01 - Video Signal
Synchronization signals
Polarity : Positive or Negative
This monitor shall not be demaged by improper sync timing and pulse duration, absence of sync, or
abnormal input amplitude (video and/or sync too large too small).
--4--
3.1.1 Horizontal Scan
Pixel Sampling Frequency : 25.056 ~ 135MHz
H sync Frequency : 31.0 ~ 80 KHz
3.1.2 Vertical Scan
Scanning Frequency : 56 ~ 75.0Hz
3.1.3 Timing
This monitor shall be capable of displaying following video timing chart.
* Timing Chart
Display Time (T4)
Front Porch (T5) Back Porch (T3)
Sync Width (T2) High Level : 2.4V min
Time Total (T1) Low Level : 0.4V max
Fig. 3.02 - H-Sync
Display Time (T4)
Sync Width (T2)
Front Porch
(
T5
)
Back Porch (T3)
Time Total (T1)
Fig. 3.03 - V-Sync
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L17T Technical Service Manual
3.1.4 Support Modes
No. Resolution H Frequency
(kHz)
Vfreq
(Hz)
H
polarity V
polarity
Dot Clock
(MHz)
1 720 x 400 31.5 70.1 0 1 28.322
2 640 x 480 31.5 59.9 0 0 25.175
3 640 x 480 37.5 75 0 0 31.500
4 800 x 600 35.2 56.3 1 1 36.000
5 800 x 600 37.9 60.3 1 1 40.000
6 800 x 600 48.1 72.2 1 1 50.000
7 800 x 600 46.9 75.0 1 1 49.500
8 832 x 624 49.725 74.55 0 0 57.283
9 1024 x 768 48.4 60.0 0 0 65.000
10 1024 x 768 56.5 70.1 0 0 75.000
11 1024 x 768 60.0 75.0 1 1 78.750
12 1152 x 864 67.5 75 1 1 108.000
13 1280 x 1024 63.9 60.0 1 1 108.000
14 1280 x 1024 80.0 75 1 1 135.000
Table 3-01. Support Modes
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3.1.5 Preset Timing
The timing shown in the following table will be factory preset for display.
-
Preset-mode table
The timing shown in the following table will be factory preset for display.
Horizontal Pixel 720 640 640 800 800 800 800 832 1024 1024 1024 1152 1280 1280
Pixel Clock MHz 28.322 25.175 31.500 36.000 40.000 49.500 50.000 57.283 65.000 75.000 78.750 108.00 108.00 135.00
Frequency kHz
31.469 31.469 37.500 35.156 37.879 46.875 48.077 49.725 48.363 56.476 60.023 67.500 63.981 79.976
Period (T1)
§`
31.777 31.778 26.667 28.444 26.400 21.333 20.800 20.111 20.677 17.707 16.660 14.815 15.630 12.504
Active (T4)
§`
25.422 25.422 20.317 22.222 20.000 16.162 16.000 14.524 15.754 13.653 13.003 10.667 11.852 9.481
Sync Width (T2)
§`
3.813 3.813 2.032 2.000 3.200 1.616 2.400 1.117 2.092 1.813 1.219 1.185 1.037 1.067
Back Porch (T3)
§`
1.907 1.907 3.810 3.556 2.200 3.232 1.280 3.910 2.462 1.920 2.235 2.370 2.296 1.837
Front Porch (T5)
§`
0.636 0.636 0.508 0.667 1.000 0.323 1.120 0.558 0.369 0.320 0.203 0.593 0.444 0.119
Vertical Lines 400 480 480 600 600 600 600 624 768 768 768 864 1024 1024
Frequency Hz
70.087 59.940 75.000 56.250 60.317 75.000 72.188 74.55 60.004 70.069 75.029 75.000 60.020 75.025
Period (T1)
§´
14.268 16.683 13.333 17.778 16.579 13.333 13.853 13.414 16.666 14.272 13.328 13.333 16.661 13.329
Active (T4)
§´
12.711 15.253 12.800 17.067 15.840 12.800 12.480 12.549 15.880 13.599 12.795 12.800 16.005 12.804
Sync Width (T2)
§´
0.064 0.064 0.080 0.057 0.106 0.064 0.125 0.060 0.124 0.106 0.050 0.044 0.047 0.038
Back Porch (T3)
§´
1.112 1.048 0.427 0.626 0.607 0.448 0.478 0.784 0.600 0.513 0.466 0.474 0.594 0.475
Front Porch (T5)
§´
0.381 0.318 0.027 0.028 0.026 0.021 0.770 0.020 0.062 0.053 0.017 0.015 0.016 0.013
Interlaced Y /N
N N N N N N N N N N N N N N
H - - - + + + + - - - + + + +
Sync Polarity V + - - + + + + - - - + + + +
Table 3-02. Preset-Timings
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L17T Technical Service Manual
3.1.6 Brightness
Definitions :
Brightness This control is mainly intended as a raster luminance adjustment.
Setting of User Controls Luminance Limits
Brightness Contrast Data/Active area
Min Min *
Max Max 180 cd/m2
Table 3.03. Luminance Limits
Legend :
* Don’t care
Full White screen @ 700mV video level, 1280x1024 resolution at
H : 64kHz, V : 60Hz
The measurement shall be executed after warming-up time during 30 minutes in a dark
room ( Ambient luminance 10 lux, temperature 25
¡C
)
≤
≤
O
O
--8--
3.2 Composite Video Input
The characteristics of video input composite are shown in Table 3.04
Signal Type Composite Video
Signal Level 1.0 Vpp
Connector Type RCA jack
Termination 75
Table 3.04 Video Input Composite
3.3 Separate Video Input (SVHS)
The characteristics of video input separate are shown in Table 3.05
Signal Type S-Video (Y/C)
Luma Level 1.0 Vpp
Chroma Level 0.286 Vpp(Reference Burst)
Connector Type 4-pin mini-DIN
Termination 75
Table 3.05 Video Input Separate
3.4 Input Formats
The Composite, YC Video input formats are shown in Table 3.06
VIDEO MODES
Mode Re solution Totoal Normal
H-Freq(Khz)
Normal
V_Freq(Hz)
Normal
Pixel
Clock(Mhz)
NTSC Composite/YC 720x480
@
59.94Hz 858x525 15.734 59.940 13.500
PAL composite/YC 720x580
@
50Hz 864x625 15.625 50.000 13.500
Table 3.06 Composite, YC Input Formats
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L17T Technical Service Manual
3.5 TV Input
3.5.1 NTSC
iAPPLICATION
-Receiving System : ( NTSC STANDARD SYSTEM )
-Channel VHF Low BAND : 2(55.25MHz) ~ H(163.25MHz)
High BAND : I(169.25MHz) ~ W+26(451.25MHz)
UHF BAND : W+27(457.25MHz) ~ 78(855.25MHz)
-Intermediate Frequeny PIF : (45.75)MHz
CIF : (44.83)MHz
SIF : (41.25)MHz
-Input Impedance : UHF/VHF Terminal (75) Y, Unbalanced
-Output Impedance : ViDEO : C.V.B.S
AUDIO : -
IF : SECOND IF
-Band Chang – Over System : (PLL Control System)
-Tuning System : (Electronic Tuning System With PLL)
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