Hyundai ImageQuest L70A Betriebsanleitung
Multiscanning Color Monitor
TECHNICAL SERVICE MANUAL
L70A
http://monitor.hei.co.kr
http://hyundaiQ.com
--1--
L70A Technical Service Manual
Safety Precaution
WARNING
Service should not be attempted by anyone unfamiliar with the necessary precautions on this monitor.
The followings are the necessary precautions to be observed before servicing.
1. When managing this monitor , cover with shield plate to avoid to scrach on LCD surface.
2. When replacing a chassis in the cabinet, always be certain that all the protective devices are
put back in place, such as nonmetallic control knobs, insulating covers, shields, isolation resistor
capacitor network etc.
3. Before returning the monitor to the customer, always perform an AC leakage current check
on the exposed metallic parts of the cabinet, such as signal connectors, terminals, screw heads,
metal overlays, control shafts etc, to be sure the monitor is safe to operate without danger of
electrical shock.
General Information
1. Description
This 17" LCD color display monitor is operated in R, G, B drive mode input.
2. Operating instructions
2-1. Front
Power Switch , Menu, Select, Down, Up, DPMS (Power) LED
2-2. Rear
Input connector (AC & Signal Cable & DVI Cable & Video Cable & USB Cable)
2-3. OSD Controls
H/V Position, Clock (H-Size),Clock Phase, Brightness, Contrast, Recall,Color Control, Preset
mode, Language, OSD Adjust , Auto Adjust, Hue, Fleshtone. Input Select
3. Electrical Characteristic
3-1. Power Supply
AC/DC - Input Voltage : 90V~264V
Input Current : 1A (Max)
Input Ferquency : 50 ~ 60Hz
- Output Voltage 12V
Output Current 3.75A
3-2. Video Input Signal
Level : 0.7 Vp-p analog signal(at 75 ohm termination to ground)
Polarity : Positive or Negative
3-3. Horizontal Synchronization Signal
Level : TTL High : 2.4V min
Low : 0.4V max
Polarity : - or +
Frequency : 31kHz ~ 80kHz
3-4. Vertical Synchronization Signal
Level : TTL High : 2.4V min
Low : 0.4V max
Polarity : - or +
Frequency : 56Hz ~ 75Hz
Control Description
Front View
Support Modes
*Aualog R,G,B Input
*Digital R,G,B Input
--2--
LED In icator Soft Power Switch
Resolution
720 x 400
640 x 480
640 x 480
800 x 600
800 x 600
800 x 600
800 x 600
832 x 624
1024 x 768
1024 x 768
1024 x 768
1152 x 870
1280 x 1024
1280 x 1024
H Frequency
(kHz)
31.5
31.5
37.5
35.2
37.9
48.1
46.9
49.725
48.4
56.5
60.0
68.681
63.900
79.976
V Frequency
(kHz)
70.1
59.9
75
56.3
60.3
72.2
75.0
74.55
60.0
70.1
75.0
75.000
60.000
75.025
H Polarity
0
0
0
1
1
1
1
0
0
0
1
1
1
1
V Polarity
1
0
0
1
1
1
1
0
0
0
1
1
1
1
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Dot Clock
(MHz)
28.322
25.175
31.5
36.000
40.000
50.000
49.500
57.283
65.000
75.000
78.750
100.00
108.00
135.00
Resolution
640 x 480
800 x 600
1024 x 768
1280 x 1024
H Frequency
(kHz)
31.5
37.9
48.4
63.9
V Frequency
(kHz)
59.9
60.3
60.0
60.0
H Polarity
0
1
0
1
V Polarity
0
1
0
1
No.
1
2
3
4
Dot Clock
(MHz)
25.175
40.000
65.000
108.00
--3--
L70A Technical Service Manual
Video Input Signal
Recommended signal are shown below
•Video Signal
Video level : 0 to 700mV
Polarity : positive or Negative
Video Input : RGB separated
Analog level
Sync input : H-Sync(TTL level)
V-Sync (TTL level)
•Waveform
Video input(R.G.B)
ACTIVE (T4)
Front Porch
(T5) Period (T1)
Sync Width (T2)
Back Porch (T3)
ACTIVE (T4)
Front Porch
(T5) Period (T1)
Sync Width (T2)
Back Porch (T3)
• H-Sync • V-Sync
0
1
2
3
4
251 252
253
254
255 700mV
0mV
• Signal: 256 level gray
scale
• Linear stepping:
(2.73mV ~ 256 Steps)
Video Input Terminal
1. Analog
A 15 Pin D-sub connector is used as the input signal connector
Pin and input signals are shown in the table below.
Pin Description
--4--
D-Sub miniature connector
1
2
3
45
10 9876
11
12
13
14
15
SIGNAL
PIN NO.
3
2
1
5
4
6
7
8
9
10
11
12
13
14
SEPARATE SYNC/
DDC 1/2B
RED
GREEN
BLUE
GND
RETURN
RED GROUND
GREEN GROUND
BLUE GROUND
N.C
LOGIC GROUND
GROUND
SDA
H-SYNC(TTL)
V-SYNC(VCLK)
15 SCL
--5--
L70A Technical Service Manual
Pin Description
2. Digital
24 Pin DVI-D Interface connector is used as the input signal connector Pin and input signal
are shown in the table below.
Digital-Only Receptacle Connector
8
7
6
5
43
12
10
9
17 18 19 20 21 22 23 24
16
1514
13
12
11
PIN NO.
3
2
1
5
4
6
7
8
9
10
11
12
SEPARATE SYNC/
DDC 1/2B
T.MD.S Data 2-
T.MD.S Data 2+
T.MD.S Data2/4 Shield
T.MD.S Data 4-
T.MD.S Data 4+
DDC Clock
DDC Data
No Connect
T.MD.S Data1-
T.MD.S Data1+
T.MD.S Data 1/3 Shield
T.MD.S Data 3-
PIN NO.
15
14
13
17
16
18
19
20
21
22
23
24
T.MD.S Data 3+
+5V Power
Ground(for +5V)
Hot Plug Detect
T.M.D.S Data 0-
T.M.D.S Data 0+
T.M.D.S Data 0/5 Shield
T.M.D.S Data 5-
T.M.D.S Data 5+
T.M.S.D Clock Shield
T.M.D.S Clock +
T.M.D.S Clock -
SEPARATE SYNC/
DDC 1/2B
--6--
Connecting with External Equipment
Cautions
Be sure to turn off the power of your computer before connecting the monitor.
15 pin D-sub cable
(Analog RGB)
DVI-D cable (Digital TMDS)
Theory of Operation
1. DC/AC INVERTER
Input voltage : DC 12V
Input current : 2.0A(Max)
Output current : 6mArms(TYP)
Frequency(switching) : 60KHz(Max)
Output power : 17W(TYP)
On/off control voltage : 5.0V
2. DPMS MODE
Reference to DPMS files
--7--
L70A Technical Service Manual
Status
on Pulse Pulse Active
Blank
No
Pulse
No
Pulse
off
Signal Power
Consumption
-
Within 3
Sec
Recovery
Time
Orange
LED
Indicator
Green
45W
Less Than 5W
H-Sync V-Sync Video
--8--
On Screen Controls & LED Indicator
The menu for screen setting adjustment is located in the OSD and can be viewed in one of five
languages
OSD feature andmain funcrions are as follows:
* Analog OSD Control
* Digital OSD Control
1280X1024
V:60.0/H:63.9
BRIGHTNESS
1280X1024
V:60.0/H:63.9
BRIGHTNESS
--9--
L70A Technical Service Manual
OSD Adjustments
The OSD adjustments available to you are listed below.
BRIGHTNESS
Adjust the brightness of the screen.
CONTRAST
Adjust the contrast of the screen.
COLOR CONTROL
Color temperature affects the tint of the image. With lower color
temperatures the image turns reddish and with higher temperatures
bluish.
There are three color settings available: Mode 1(a cool white), Mode 2(a warm
white) or USER. With the USER setting you can set individual values for red,
green and blue.
YUV COLOR
In particular, color technology allows users to make the following color
adjustment.
HUE
Adjust the hue of the video image.
FLESH TONE
Adjust the flesh Tone of the video image.
MISCELLANEOUS
RECALL
Recall the saved color data.
OSD TIMER
You can set the displayed time of OSD Menu window on the screen by using
this adjustment.
OSD POSITION
Adjust the OSD menu's horizontal or vertical position on the screen.
AUTO ADJUST
You can adjust the shape of screen automatically at the full screen pattern.
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