LG FLATRON L2323T User manual

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Model Description
MODEL BRAND
Printing Specification
1. Trim Size (Format) : 215mm x 280mm
2. Printing Colors
•Cover : LG COLOR
•Inside : Black
3. Stock (Paper)
•Cover : Snow white paper 150 g/
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•Inside : Snow white paper 100 g/
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4. Printing Method :
5. Bindery : Saddle stitch
6. Language : English
7. Number of pages : 69
Part No.
1.
2.
Service Guide Specification
Service Guide Specification
Changes
4.
REV.
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SUFFIX
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L2323AL
ALUKT
LG 3828TSL096C
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8
Special Instructions3.
Product Name FLATRON L2323T
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Front
Cover
Front Inside
Cover
2
English
3
English
4
English
5
English
……
English
……
Rear
Cover
English
64
English
65
English
66
Rear Cover
Inside
67
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COLOR MONITOR
SERVICE MANUAL
Website:http://biz.LGservice.com
E-mail:http://www.LGEservice.com/techsup.html
CAUTION
BEFORE SERVICING THE UNIT,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CHASSIS NO. : CL-46
MODEL: L2323T (L2323AL-AL**T)
( ) **Same model for SVC
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1. LCD CHARACTERISTICS
Type : TFT Color LCD Module
Active Display Area : 23inchs diagonal
Pixel Pitch : 0.13(H) x 0.39(V)
Electrical Interface : LVDS
Color Depth : 8-bit, 16,777,216 colors
Size : 528.0(W)x326(H)x34.5(D)
Surface Treatment : Anti-Glare, Hard Coating(3H)
Operating Mode : Normally Black
Backlight Unit : 12-CCFL (Cold Cathode
Fluorescent Lamp)
2. OPTICAL CHARACTERISTICS
2-1. Viewing Angle by Contrast Ratio
≥ 10
Left : -88°(Typ) Right : +88°(Typ)
Top : +88°(Typ) Bottom : -88°(Typ)
2-2. Luminance : 450 cd/m
2
(Typ)
2-3. Contrast Ratio : 400:1(Typ.)
3. SIGNAL (Refer to the Timing Chart)
3-1. Video Input
1)Signal Input : 15pin D-sub Connector/
DVI-D Connector, DVD(SCART Jack)
Composite video, S-video, HDTV(Component)
2)Input Form : RGB Analog(0.7Vp-p/75 Ω), Digital,
S-VIDEO, CVBS, YPbPr(Y, Cb, Cr)
3-2. Sync Input
Horizontal : 30 ~ 66kHz
Vertical : 56 ~ 75Hz
Input Form : Separate TTL,
Positive/Negative Composite TTL,
Positive/Negative SOG(Sync On Green)
DIGITAL
4. Max.Resolution
Analog -1280 x 1024@60Hz
Digital(DVI-D) -1280 x 1024@60Hz
5. POWER SUPPLY
5-1. Power Adaptor
Display
Input : DC 24V 4A, DC5V 0.5A
Media station
Input : AC 100~240V, 50/60Hz , 1.5A
Output : DC 24V 4A, DC 5V 0.5A
5-2. Power Consumption
6. ENVIRONMENT
6-1. Operating Temperature: 10°C~35°C (50°F~95°F)
(Ambient)
6-2. Relative Humidity : 10%~80%
(Non-condensing)
6-3. MTBF : 50,000 Hours(Typ.)
7. DIMENSIONS
Display(with TILT/SWIVEL)
Width : 587.5 mm (23.13'')
Depth : 260 mm (10.24')
Height : 446.5 mm (17.58'')
Media Station
Width : 129.6 mm (5.10'')
Depth : 191.6 mm (7.57')
Height : 20.57 mm (8.09'')
8. WEIGHT
Display(with Tilt/Swivel) : 7.70kg (16.98 lbs)
Media station : 2.7kg (5.95 lbs)
CONTENTS
SPECIFICATIONS
- 2 -
SPECIFICATIONS ................................................... 2
PRECAUTIONS ....................................................... 4
TIMING CHART ....................................................... 5
OPERATING INSTRUCTIONS ................................ 6
BLOCK DIAGRAM ................................................. 13
DESCRIPTION OF BLOCK DIAGRAM...................14
ADJUSTMENT ...................................................... 15
TROUBLESHOOTING GUIDE .............................. 16
WIRING DIAGRAM ................................................23
EXPLODED VIEW(DISPLAY) .................................24
EXPLODED VIEW(MEDIA STATION).....................26
REPLACEMENT PARTS LIST ...............................28
PIN CONFIGURATION............................................41
SCHEMATIC DIAGRAM......................................... 46
MODE
POWER ON (NORMAL)
STAND-BY
SUSPEND
DPM OFF
POWER OFF
POWER CUT OFF S/W OFF
H/V SYNC
ON/ON
OFF/ON
ON/OFF
OFF/OFF
-
-
POWER CONSUMPTION
less than 110 W
less than 5 W
less than 5 W
less than 3 W
less than 3 W
less than 1 W
LED COLORVIDEO
ACTIVE
OFF
OFF
OFF
-
-
BLUE
AMBER
AMBER
AMBER
OFF
OFF
BLUE
DARK BLUE
DARK BLUE
DARK BLUE
DARK BLUE
OFF
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- 3 -
Signal Connector Pin Assignment
Pin Signal (DVI-D)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
T. M. D. S. Data2-
T. M. D. S. Data2+
T. M. D. S. Data2/4 Shield
T. M. D. S. Data4-
T. M. D. S. Data4+
DDC Clock
DDC Data
Analog Vertical Sync.
T. M. D. S. Data1-
T. M. D. S. Data1+
T. M. D. S. Data1/3 Shield
T. M. D. S. Data3-
T. M. D. S. Data3+
+5V Power
Ground
(return for +5V,
H. Sync. and V. Sync.)
Pin Signal (DVI-D)
18
9
17 24
16
16
17
18
19
20
21
22
23
24
Hot Plug Detect
T. M. D. S. Data0-
T. M. D. S. Data0+
T. M. D. S. Data0/5 Shield
T. M. D. S. Data5-
T. M. D. S. Data5+
T. M. D. S. Clock Shield
T. M. D. S. Clock+
T. M. D. S. Clock-
T. M. D. S. (Transition Minimized Differential Signaling)
• DVI-D Connector
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- 4 -
WARNING FOR THE SAFETY-RELATED COMPONENT.
• There are some special components used in LCD
monitor that are important for safety. These parts are
marked on the schematic diagram and the
replacement parts list. It is essential that these critical
parts should be replaced with the manufacturer’s
specified parts to prevent electric shock, fire or other
hazard.
• Do not modify original design without obtaining written
permission from manufacturer or you will void the
original parts and labor guarantee.
TAKE CARE DURING HANDLING THE LCD MODULE
WITH BACKLIGHT UNIT.
• Must mount the module using mounting holes arranged
in four corners.
• Do not press on the panel, edge of the frame strongly
or electric shock as this will result in damage to the
screen.
• Do not scratch or press on the panel with any sharp
objects, such as pencil or pen as this may result in
damage to the panel.
• Protect the module from the ESD as it may damage the
electronic circuit (C-MOS).
• Make certain that treatment person’s body are
grounded through wrist band.
• Do not leave the module in high temperature and in
areas of high humidity for a long time.
• The module not be exposed to the direct sunlight.
• Avoid contact with water as it may a short circuit within
the module.
• If the surface of panel become dirty, please wipe it off
with a softmaterial. (Cleaning with a dirty or rough cloth
may damage the panel.)
WARNING
BE CAREFUL ELECTRIC SHOCK !
• If you want to replace with the new backlight (CCFL) or
inverter circuit, must disconnect the AC adapter
because high voltage appears at inverter circuit about
650Vrms.
• Handle with care wires or connectors of the inverter
circuit. If the wires are pressed cause short and may
burn or take fire.
PRECAUTION
CAUTION
Please use only a plastic screwdriver to protect yourself
from shock hazard during service operation.
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TIMING CHART
- 5 -
VIDEO
SYNC
C
E
DF
A
B
<< Dot Clock (MHz), Horizontal Frequency (kHz), Vertical Frequency (Hz), Horizontal etc... (µs), Vertical etc... (ms) >>
H + 31.47 800 640 16 96 48
V–70.09 449 350 38 2 60
H–37.5 840 640 16 64 120
V–75 500 480 1 3 16
H–31.47 900 720 18 108 54
V + 70.08 449 400 13 2 34
H + 37.879 1056 800 40 128 88
V + 60.317 628 600 1 4 23
H + 46.875 1056 800 16 80 160
V + 75.0 625 600 1 3 21
H+/–49.725 1152 832 32 64 224
V+/–74.55 667 624 1 3 39
H–48.363 1344 1024 24 136 160
V–60.0 806 768 3 6 29
H + 60.123 1312 1024 16 96 176
V + 75.029 800 768 1 3 28
H+/–63.98 1688 1280 48 112 248
V+/–60.02 1066 1024 1 3 38
Mode H/V
Sort
1
2
3
4
5
6
7
8
9
10
11
25.175
25.175
31.5
28.324
40.0
49.5
57.283
65.0
78.75
79.50
108.0
640x350
70Hz
720x400
70Hz
640x480
75Hz
640x480
60Hz
800x600
60Hz
800x600
75Hz
832x624
75Hz
1024x768
60Hz
1024x768
75Hz
1280x768
60Hz
1280x1024
60Hz
H–31.47 800 640 16 96 48
V–59.94 525 480 10 2 33
Sync
Polarity Frequency
Dot
Clock Total Period
(A)
Video Active Time
(B)
Sync Duration
(E)
Back Porch
(D)
Front Porch
(F)
Resolution
H + 47.78 1664 1280 64 128 192
V + 59.87 798 768 3 7 20
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OPERATING INSTRUCTIONS
- 6 -
FRONT VIEW
MEDIA STATION REAR VIEW
SIDE VIEW
Front Control Panel
AV1 AV2
(Video)
1. Connect the P&D cable
2. Connect to the speaker including a built-in
amplifier(AMP)
3. AV Input ports
4. PC signal inputs
5. Connect the audio cable to the *LINE OUT jack
of the PC sound card.
6.Connect the SCART cable
7. Power cut-off switch of the monitor
Connect various cables and the power cord and turn on
before using the monitor. Please turn the monitor off if you
intend not to use it for an extended period of time to
reduce power consumption.
8. HDTV(YPbPr) Input ports - 576p/720p/1080i
9. Connect the antenna cable (not included)
10.Connect the power cord
2
1
8
4
5
6
7
3
910
Fan: Should the temperature of the media station rise
above a preset level, the fan will start up
automatically to cool down the unit.
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1. Remote Control Sensor
2. Power Button
Use this button to turn the display on or off.
<Power (DPMS) Indicator>
This Indicator lights up blue when the display
operates normally. If the display is in DPM (Energy
Saving) mode, this indicator color changes to
amber.
3. Source Button
Use this button to select an input signal
4. PIP Button
The sub-screen is changed in the
order shown below.
: SMALL -> LARGE -> OFF
The positions of SOURCE 1 and
SOURCE 2 can be transposed by
selecting SWAP on the remote control.
5. POP Button
The sub-screen is changed in the
order shown below.
: POP1 -> POP2 -> POP3 -> POP4 ->
OFF
The positions of SOURCE 1 and
SOURCE 2 can be transposed by
selecting SWAP on the remote control.
6. MENU Button
Use this button to enter or exit On Screen Display.
7. PR. -/PR+, VOL. -+
Use these buttons to choose or adjust items in the
On Screen Display.
8. AUTO Button
- 7 -
Front Control Panel
3 4 5 6 7 8 2 1
•DSUB ANALOG: 15-pin D-sub analog signal
•DVI-D DIGITAL: DVI-D digital signal
•HDTV YPbPr: HDTV
•S-VIDEO: S video
•AV1(SCART): SCART
•AV2(VIDEO): VIDEO
•TV:TV
•
Bring up Contrast and Brightness
adjustment. It is available to the PC signal
inputs only.
VOL. - / VOL. +
Use these buttons to decrease or
increase the volume level.
When adjusting your display settings, always press the
AUTO/SELECT button before entering the On Screen
Display(OSD). This will automatically adjust your
display image to the ideal settings for the current
screen resolution size (display mode). It is available to
the PC signal inputs only.
The best display mode is 1280x768 @60Hz.
Use this to enter a selection in the On Screen Display.
CONTROLS LOCKED/UNLOCKED :
MENU and VOL.+
This function allows you to secure the
current control settings, so that they
cannot be inadvertently changed.
Press and hold the MENU button and
VOL.+ button for 5
seconds: the message “CONTROLS LOCKED” appears.
You can unlock the OSD controls at any time by pushing
the MENU button and
VOL.+ button for 5 seconds:
the message “CONTROLS UNLOCKED” will appear.
PR. - / PR. +
PR. - / PR. + : To adjust the brightness
VOL. - / VOL. + : To adjust the contrast
•Use these buttons to go up and down the
channel when the TV source is available.
PR. - / PR. +
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- 8 -
SVC OSD
1) Turn off the power switch at the front side of the display.
2) Wait for about 5 seconds and press MENU, PR+ and VOL+ with in 1 second interval.
3) The SVC OSD menu contains additional menus that the User OSD menu as described below.
a) ELAP. TIME CLEAR: Displays or clears the used time.
b) AUTO GAIN/OFFSET: Automatically sets the gain and offset value. (Pattern is used for D-Sub
window pattern.)
c) AUSTRALIA TV: The default value is off. When watching the Australian TV, turn it on.
d) R/G/B-GAIN: Allows you to set the R/G/B gain value manually.
e) R/G/B-OFFSET: Allows you to set the R/G/B-OFFSET value manually.
f) FAN: The default value is set to Auto. If set to Auto, the fan runs according to the surrounding
temperature. If set to On, the fan will run indefinitely as long as the power is on. (You can use this
option to check fan operation status. Make sure to set to Auto after inspection.)
g) TXT LANG: Set the proper text language (0~16).
h) RESET: The default value is set to Off. You can change the setting only after setting on after SVC
OSD menu change.
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