LG Flatron L4200A User manual

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-49
MODEL: L4200A (L4200AL-AL**A)
L4200A (L4200AFL-AL**A)
L4200A (L4200APL-AL**A)
L4200A (L4200ATL-AL**A)
( ) **Same model for Service
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1. LCD CHARACTERISTICS
Type : TFT Color LCD Module
Size : 42inch
Pixel Pitch : 0.681 x 0.227 x RGB
Color Depth : 8-bit, 16,777,216 colors
Electrical Interface : LVDS
Size : 1006mm x 610mm x 59mm
Surface Treatment :
Anti-Glare, Hard Coating(3H)
Operating Mode : Normally Black
Backlight Unit : 20-CCFL (20 Lamps)
2. OPTICAL CHARACTERISTICS
2-1. Viewing Angle by Contrast Ratio ≥10
Left : -85° min., -88°(Typ)
Right : +85° min., +88°(Typ)
Top : +85° min., +88°(Typ)
Bottom : -85° min., -88°(Typ)
2-2. Luminance : 380(min), 450(Typ)
2-3. Contrast Ratio : 280(min), 350(Typ)
3. SIGNAL (Refer to the Timing Chart)
3-1. PC & Video Input
1)Signal Input : S-video,RCA, Component
2)Input Form :
D-SUB Analog, DVI-D,V1(CVBS), V2(S-VIDEO)
Option : Y/PB/Pr x2 or SCARTx2(Full & Half)
3)Resolution(max) : Analog -1600 x 1200@60Hz
Digital -1360 x 768@60Hz
3-2. Audio AMP
1) Output : 10W + 10W (Reted Out put 10%)
2) Freq. Character : 100Hz ~ 10KHz Range (-3dB)
3) T.H.D : Whthin 10%
4) Input Sensitivity : 0.700Vrms
5) S/N : More than 40dB
3-3. Speaker
1) Type : Built-In
2) Impedance : 8
3) Input : Max - 11W, Normal - 10W
3-4. AV
1) Video Level : Input - 0.7 0.15 (75 Terminal Resistor)
2) Sync Level : Input - 0.286 0.075 (75 Terminal Resistor)
3) Color Level : Input - 0.214 0.072 (75 Terminal Resistor)
4) Audio Level : NTSC Input - 0.40 0.1 (600 )
PAL Input - 0.50 0.1 (600 )
PC Input - 0.70 0.1 (600 )
5) Video Cross Talk : 43
3-5. Sync Input
Horizontal : 30 ~ 83kHz(Digital: 30~72kHz)
Vertical : 56 ~ 85Hz
Input Form : Separate, TTL, Positive/Negative Digital
4. POWER SUPPLY
4-1. Power Voltage : AC 100~240V, 50/60Hz
4-2. Power Consumption
5. ENVIRONMENT
5-1. Operating Temperature : 10°C~35°C (50°F~95°F)
5-2. Operating Humidity : 10%~80%
5-3. MTBF : 50,000 Hours(Min.)
6. DIMENSIONS (with TILT/SWIVEL)
L4200AL / L4200ATL
Width : 1057 mm (41.61'')
Height : 702 mm (27.63'')
Depth : 294.5 mm (11.59'')
L4200APL
Width : 1057 mm (41.61'')
Height : 653 mm (25.70'')
Depth : 119.1 mm (4.69'')
L4200AFL
Width : 1259 mm (49.57'')
Height : 702 mm (27.63'')
Depth : 294.5 mm (11.59'')
7. WEIGHT (with TILT/SWIVEL)
L4200AL / L4200ATL
Net. Weight : 41.4kg (91.28 lbs)
Gross Weight : 44.4kg (97.90 lbs)
L4200APL
Net. Weight : 37.0kg (81.58 lbs)
Gross Weight : 40.0kg (88.20 lbs)
L4200AFL
Net. Weight : 44.0kg (97.01 lbs)
Gross Weight : 47.0kg (103.6 lbs)
CONTENTS
SPECIFICATIONS
- 2 -
SPECIFICATIONS ..................................................... 2
PRECAUTIONS ......................................................... 4
TIMING CHART ......................................................... 5
OPERATING INSTRUCTIONS .................................. 7
REMOTE CONTROLLER BUTTONS..........................9
WIRING DIAGRAM .................................................. 12
BLOCK DIAGRAM ................................................... 13
DESCRIPTION OF BLOCK DIAGRAM.....................17
ADJUSTMENT ......................................................... 18
ADJUST WHITE BALANCE ......................................20
TROUBLESHOOTING GUIDE ................................ 21
EXPLODED VIEW.....................................................27
REPLACEMENT PARTS LIST .................................29
SCHEMATIC DIAGRAM........................................... 40
MODE
POWER ON (NORMAL)
STAND-BY
SUSPEND
POWER OFF
CUT-OFF SWITCHOFF
H/V SYNC
ON/ON
OFF/ON
ON/OFF
OFF/OFF
-
POWER CONSUMPTION
less than 300 W
less than 5 W
less than 5 W
less than 5 W
less than 0 W
LED COLOR
GREEN
AMBER
AMBER
AMBER
OFF
VIDEO
ACTIVE
OFF
OFF
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 (Digital)
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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
B
C
EA
D
<< Dot Clock (MHz), Horizontal Frequency (kHz), Vertical Frequency (Hz), Horizontal etc... (µs), Vertical etc... (ms) >>
1) PC Mode
Mode H/V
Sort
Sync
Porarity
DOT
Clock Frequency Total
Period
(E)
Video
Active Time
(A)
Front
Porch
(C)
Sync
Duration
(D)
Back
Porch
(F) Resolution
1H+ 25.175 31.469 800 640 16 96 48 640 x 350
V - 70.8 449 350 37 2 60
2H- 28.321 31.468 900 720 18 108 54 720 X 400
V + 70.8 449 400 12 2 35
3H- 25.175 31.469 800 640 16 96 48 640 x 480
V - 59.94 525 480 10 2 33
4H- 31.5 37.5 840 640 16 64 120 640 x 480
V - 75 500 480 1 3 16
5H- 36.0 43.269 832 640 56 56 80 640 x 480
V - 85.0 509 480 1 3 25
6H+ 40.0 37.879 1056 800 40 128 88 800 x 600
V + 60.317 628 600 1 4 23
7H+ 49.5 46.875 1056 800 16 80 160 800 x 600
V + 75.0 625 600 1 3 21
8H+56.25 53.674 1048 800 32 64 152 800 x 600
V + 85.061 631 600 1 3 27
9H +/- 57.283 49.725 1152 832 32 64 224 832 x 624
V +/- 74.55 667 624 1 3 39
10 H- 65.0 48.363 1344 1024 24 136 160 1024 x 768
V - 60.0 806 768 3 6 29
11 H-78.75 60.123 1312 1024 16 96 176 1024 x 768
V - 75.029 800 768 1 3 28
12 H+ 94.5 68.68 1376 1024 48 96 208 1024 x 768
V + 85.00 808 768 1 3 36
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Mode H/V
Sort
Sync
Porarity
DOT
Clock Frequency Total
Period
(E)
Video
Active Time
(A)
Front
Porch
(C)
Sync
Duration
(D)
Back
Porch
(F) Resolution
13 H+ 74.5 44.772 1664 1280 64 128 192 1280 x 720
V + 59.855 748 720 3 5 20
14 H+84.75 47.72 1776 1360 72 136 208 1360 x 768
V + 59.799 798 768 3 5 22
15 H+108.0 63.981 1688 1280 48 112 248
1280 x 1024
V + 60.02 1066 1024 1 3 38
16 H+ 135.00 79.98 1688 1280 16 144 248
1280 x 1024
V + 75.02 1066 1024 1 3 38
17 H+ 162.00 75.00 2160 1600 90 30 88
1600 x 1200
V + 60 1250 1200 1 3 46
Mode H/V
Sort
Sync
Porarity
DOT
Clock Frequency Total
Period
(E)
Video
Active Time
(A)
Front
Porch
(C)
Sync
Duration
(D)
Back
Porch
(F) Resolution
1 H - 25.175 31.469 800 640 16 96 48 SDTV
V - 59.94 525 480 10 2 33 480P
2 H - 27.027 31.5 858 720 16 62 60 HDTV
V - 60 525 480 10 2 33 720P
3 H - 74.176 44.955 1650 1280 70 40 260 HDTV
V - 59.94 750 720 5 5 60 720P
4 H - 74.250 33.750 2200 1920 44 44 192 HDTV
V - 60.053 562 540 2 5 15 1080I
5 H - 74.176 33.716 2200 1920 44 44 192 HTDV
V - 59.994 562 540 2 5 15 1080I
* D-Sub : Supporting No.1 ~ No.17(Max 1600x1200 @ 60Hz)
* DVI-D :Supporting NO.1 ~ NO.15(Max 1360 x768 @60Hz)
2) DTV Mode
* Component Video Input(Y/Pb/Pr)
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- 7 -
FRONT VIEW
REAR VIEW
OPERATING INSTRUCTIONS
Front Control Panel(P8)
Back Cap
- Open the back cap before
you install the monitor.
IN
OUT
Video
Video
*LINE OUT
A terminal used to connect to the speaker including a built-in amplifier (Amp).
Make sure that the connecting terminal of the PC sound card is checked before connecting.
If the Audio Out of PC sound card has only Speaker Out, reduce the PC volume.
If the Audio Out of the PC sound card supports both Speaker Out and Line Out, convert to Line Out using the card jumper of the program
(Refer to the Sound Card Manual).
[Case 1]
[Case 2] RS-232C Serial ports
PC signal inputs
Connect the audio cable to the
*LINE OUT jack of the PC sound card.
AV Input ports
Connect the power cord
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- 8 -
OPERATING INSTRUCTIONS
Front Control Panel
•Press the button to turn on the power. Press the button again to turn it off.
•This Indicator lights up green when the display operates normally. If the display is in DPM
(Energy Saving) mode, this indicator color changes to amber.
Power Button
Power LED
•Adjust the volume.
•Use this button to directly control
brightness and contrast of the PC signal
(DSUB/DVI).
•Use this button to show/hide the OSD (On Screen Display) menu screen.
MENU Button
•Use the button to select an icon or adjust the setting in the OSD screen.
OSD Select
Adjust Button
[A] For DSUB signal
•Select the icon to adjust on the OSD screen.
•If you press the [AUTO/SELECT] button, automatic
screen adjustment will be started.
[B] Other signals that DSUB
•The current signal and mode
information will be displayed.
AUTO/SELECT Button
•The unit that receives the signal from the remote controller.
DVI DIGITAL DVI digital signal
DSUB ANALOG 15-pin D-Sub analog signal
VIDEO1(CVBS) Composite video
VIDEO2(S-Video) S-Video
SCART 1/ 2 Composite
COMPONENT 1/ 2 YPbPr (YCbCr)
•Select the input signal
SOURCE Button
[Case 1]
DVI DIGITAL
DSUB ANALOG
VIDEO1(CVBS)
VIDEO2(S-Video)
SCART 1
SCART 2
[Case 2]
DVI DIGITAL
DSUB ANALOG
VIDEO1(CVBS)
VIDEO2(S-Video)
COMPONENT 1
COMPONENT 2
•
OSD is locked
• OSD is unlocked.
Use this button to lock/unlock OSD screen adjustment.
(Activated when pressed together longer than 5 seconds.)
OSD Lock/Unlock Button
Menu button +
•Use this button to turn on/off the monitor.
Main Power Switch
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- 9 -
Remote Controller Buttons
Power On/Off Button
BRT.W
*
• Input Select Button
• AV Button
(See next page)
Sleep Button
When watching AV/DVD/HDTV
- The monitor will be automatically turned off
after a certain period of time.
Press this button repetitively to select an
appropriate time duration
*
There is not a function
which is supported
• Menu Button
• Exit Button
Auto Button
PC: Automatic adjustment function
(Operational for the analog signal only)
Check Button
Sound Mode Select
Select the sound mode
: MONO/STEREO
Video Operation Button
Applicable for LG products only
Volume Button
Mute button
There is not a function
which is supported
PSM Button
When watching AV/DVD/HDTV
- Automatically adjusts the image.
Press this button repetitively to set the
intended screen. (See A27)
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- 10 -
*
BRT.W
If you press the button once,
the following Input Signal
Window will appear. Select
the signal type you want
using the button.
This button will be enabled only
when you selected the AV signal.
The signal type will be changed
with the followaing order. Set the
signal type you want.
[Case 1]
• Input Select Button
• AV Button
[Case 1]
CVBS S-Video SCART1 SCART 2
[Case 2]
CVBS S-Video COMPONENT1
COMPONENT2
DVI DIGITAL
DSUB ANALOG
VIDEO1(CVBS)
VIDEO2(S-Video)
SCART 1
SCART 2
[Case 2]
DVI DIGITAL
DSUB ANALOG
VIDEO1(CVBS)
VIDEO2(S-Video)
COMPONENT 1
COMPONENT 2
1. PIP (Picture in Picture) Button
The sub-screen moves to the next mode whenever you press this button.
: SMALL -> LARGE -> OFF
2. POP (Picture out Picture) Button
The sub-screen moves to the next mode whenever you press this button.
: POP ON -> PBP(FULL) -> PBP(4:3) -> OFF
POP ON PBP (FULL) PBP (4:3)
PIP
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<Table of PIP/POP/PBP Function Support>
SWAP
SWAP
When 'Input Signal 1' comes on in the main screen, only 'Input Signal 2' can be displayed on the sub-screen.
On the contrary, if the main screen displays 'Input Signal 2', the sub-screen can display 'Input Signal 1' only.
You can swap 'Input Signal 1' and 'Input Signal 2' using the SWAP button.
CVBS
CVBS
S-Video
S-Video
SCART 1
COMPONENT 1
SCART 1
COMPONENT 1
SCART 2
COMPONENT 2
SCART 2
COMPONENT 2
3. Swap Button
You can swap the main screen and the sub-screen when the PIP/POP/PBP function is used.
PIP
POP
PBP
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- 12 -
WIRING DIAGRAM
NO.
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15
PIN & P/N
20PIIN, 6631T11016Z
4PIN, 6631T25019G
14PIN, 6631T20029L
5PIN, 6631T25019C
15PIN, 6631T20029K
12PIN, 6631T20029M
8PIN, 6631T20029Q
12PIN, 6631T20029N
12PIN, 6631T20029T
3PIN, 6631T25005M
6PIN, 6631T25019E 5PIN, 6631T20029S
13PIN, 6631T20029U 14PIN, 6631T20029R
5PIN, 6631T25019D
Power
Cord
Switch
Screw 11Pin
13Pin
5Pin
15Pin
14Pin
14Pin
14Pin
14Pin
15Pin
15Pin
15Pin
5Pin
5Pin
10Pin
10Pin
6Pin
6Pin
8Pin
8Pin
8Pin
8Pin
20Pin
20Pin
5Pin 5Pin
5Pin
13Pin
12Pin
12Pin 12Pin
12Pin 12Pin
12Pin
Inverter
Inverter
Power Board
Main Board
2Pin
3Pin
4Pin
2Pin
1Pin 11Pin
Screw
Screw Screw
1
8
9
10
11
12
13
14
15
6
7
2
3 4 5
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CVBS_In
PA L Option
Full SCART
DVI-D
CVBS_Out
Half SCART
Y/C1 Y/C2
CVI N1 CVI N2 CVI N3 CVI N4 CVI N5
Y/C OUT
CVOU T1
CVOU T2
CVOU T3
CXA2040Q
S-Video
S_CVO1
S_AVID1
S_R/G/B
S_FB
VPC3230D
S_CVI1
S_CVO2
S_CVI2
S_AVID2
3D COM
Filter
64M bits SDRAM
(HY57V643220CT6) 128Mbits DDR SDRAM
(HY5DU283222AQ)
4Mbits Flash Memory
(29LV040B)
Scaler
gm1601 To
Module
5.2M Filter
SY/SC_In
CVBS_In
CVBS_Out
*Non-TV
S_CV1
S_CV2
SY/SC_In
+9V_CXA
EEPROM
(24C16)
BA 7657F
CVBSI _3 D
Y/Cout_CXA
+3.3V_3D +2.5V_3D
3DY/C
I2C
EN_3D
RST_3D
CSI_3D
CVBSO_SC
???
SCART_Select
S_AVID 1
S_AVID 2
S_AVID
R/G/B_In1
FB_In
T_R/G/B
T_FB
S_R/G/B
S_FB
+5V_BA
RGB_Select
I2C
+3.3V_TXT +2.5V_TXT
SW_Tuner(0, 1)
Buffer
Vout_TXT
+5V_VPC
SCL1/SDA1
+3.3V_M
Data(0~10) Address(0~31)
+1.8V_FIL
+3.3V_FIL
13.5MHz
CLK_ADC
HS_ADC
VS_ADC
+3.3V_F
FDATA(0~7 ) FADDR_(0~18)
WE_F RE_F CS_F
DDRDATA(0~31 ) DDRADDR_(0~11)
+2.5V_DDR
+3.3V_M +2.5V_M +1.8V_M
DVI _RX(0,1,2,C)/I2C
R/G/B_In
Y/U/V_Out(0~15)
I2C_DDCCI
I2C_DDCCI
SDA1/SCL1
B
CVBSO
C
D
E
F
G
+3.3V_VPC
H
Deinterlace
FLI2310
SCL1/SDA1
SCL1/SDA1
SDA2/SCL2
+5VA
MAX232
RS232C In
RS232C
Out
RX TX
VPC_Y1(0~7)
I
J
Buffer
Buffer
Buffer
BLOCK DIAGRAM(Video1)
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BLOCK DIAGRAM(Video2)
- 14 -
+5VA
MAX232
In
RS232C Out
RX TX
RS232C
VPC3230D
64M bits SDRAM
(HY57V643220CT6)
+5V_VPC
VPC_Y2(0~7)
I2C
+3.3V_M
Data(0~10) Address(0~31)
+1.8V_FIL
+3.3V_FIL
13.5MHz
CLK_ADC
HS_ADC
VS_ADC
Deinterlace
FLI2300
+3.3V_VPC
B
F
E
G
CVBS_In
S_CV1
S_CV2 H
BA 7657F
+5V_BA
RGB_Select
R/G/B Out_FIL
R/G/B In_ANA
R/G/B In
SOG
SCL2/SDA2
SCL2/SDA2
D-Sub
EEPROM
(24C16)
I2C_DDCCI
+3.3_ADC
SCL1/SDA1
SY/SC_In Y/C1
Y/C2
CVI N1 CVI N2 CVI N3 CVI N4 CVI N5
Y/C OUT
CVOU T1
CVOU T2
CVOU T3
CXA2040Q
CVBSI _3 D
+9V_CXA
Y/Cout_CXA
C D
S_R/G/B S_FB
I
Port 1
Port A
J
Port 2
NTSC Option
Compo_InCompo_In
YPbPr_In
RS232C
MST9888
BA 7657F
YPbPr_In
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BLOCK DIAGRAM(Audio)
Aud io Processor
(MPS3450G —Global Version)
Aud io Power Amp
(TPA3004D2)
Audio Input Selector
(CD4052B)
CVBS_In
TV Tuner Option
PC_In I
PA L Option
SCART_In_Out
NTSC Option
Compo_InCompo_In
PC Audio_In1
PC Audio_In
Audio Buffer
SCART Audio1_Out
SIF1
CVBS Audio_In
Audio Buffer
To
Speaker Out
DACM_L DACM_R
AMP IN _R
AMP IN _L
SCART_In_Out
(Half)
SC1_In
SC2_In
SC3_In
SC4_In
SCART Audio2_Out
SC2_OUT
+8VA
PC Audio_Select
PC Audio_Sta
ndby
+8VA
+5VS
MSP_INT
I2C_SCL
I2C_SDA
MSP_RST
Tuner SIF
MONO _InSECAM_Audio
+8VA
+8VA
+18VAMP
Standby_TPA3004
Fadeout_Audio
RS232_In RS232_Out
MAX232
Tx Tx_In
Tx_Out
Rx Rx_In
Rx_Out
Option Board
łł
łł
¯¯
¯¯
ºº
ºº
CVBS_Out
CVBS_Audio Out
Audio Buffer
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BLOCK DIAGRAM(Power)
EMI
COMPONENTS
AA
AACC
CC
II
II
nn
nn
pp
ppuu
uutt
tt
11
1100
0000
00
~~
~~
22
2244
4400
00VV
VV
55
5500
00//
//
66
6600
00HH
HHzz
zz
INPUT RECTIFIER
AND FILTER
MAIN
SWITCHING
TRANSFORMER
OUTPUT RECTIFIER
AND FILTER
MAIN CONTROL
IC & CIRCUIT
INVERTER
SWITCHING
TRANSFORMER
INVERTER
CONTROL
IC & CIRCUIT
PFC CHOKE COIL
PFC CONTROL
IC & CIRCUIT
OUTPUT RECTIFIER
AND FILTER
F/B
F/B
F/B
400V
Vcc
5V Stand-by
12V 18V
12V
or
24V
MICOM
PWR O
n/Off
Vcc
L
N
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DESCRIPTION OF BLOCK DIAGRAM
1. Input Selection Circuit
1) Analog Input Selection
This block is composed of BA7657F(U103) and
peripheral devices.
There are analog H/V Syncs. BA7657F IC chooses
one input and outputs selected input through sync
selection pin
2) Video Input Selection
This block is composed of video S/W IC (CXA2040Q,
U3) , 3D- Comb filter(UPD64083,U805) and peripheral
devices. There are three inputs in CXA2040Q
IC(CVBS video , S-video signal,SCART SIGNAL).
CVBS video signal is separated to Y/C signal by 3D-
Comb filter. One selected video signal is transmitted a
video decoder IC (VPC3230, U201)
2. DDC controller
This block is composed of GM1501(U402) and
peripheral EEPROM IC(U107,U108).
GM1501(U402) controls peripheral devices through
IIC line.
Major functions are (1) to control Flash memory
through DDC-SCLA, DDC-SDAA of D-sub And (2) to
store EDID data in the EEPROM (U107,U108).
3. Video Decoder
This block is composed of VPC 3230 (U1) and
peripheral devices.
GM 1501 controls this IC through IIC Line.
This IC analyzes input signal of CVBS, Y/C and output
analyzed signal (8bit interlace signal) to De-interlace
block.
Analyzed signal has video control signals like
Contrast, Brightness, Sharpness, Color, tint signals
Including Adaptive Comb Filter.
4. Audio Decoder
This block is composed of MSP3420G (U501) and
peripheral devices.
GM 1501 controls this IC through IIC Line.
This IC analyzes audio input signal through A/V Jack
and PC audio.
The analyzed signals transmitted to audio amplifier
(TPA3004, U501).
5. Audio Amplifier
This block is composed of TPA3004 (U505) and
peripheral devices.
The function of the audio amplifier is that to amplify
audio L/R signal transmitted from audio decoder. The
audio signal is amplified according to pre-defined DC
volume control curve. Also, Headphone amplifier
(Tpa6110, U501) is controlled through Line-out.
6. De-interlacer
This block is composed of FLI 2310(U301) and
peripheral devices.
GM1501 (U402) controls this IC through IIC Line.
And this IC converts 8 Bit Interlaced Y/UV signal and
signal that is from component port and changed to
24bit digital signal to De-interlaced signal.
It output converted signal to Format Converter IC(GM
1501, U402).
7. Format Converter
This block is composed of GM 1501(U402) and
peripheral devices. GM 1501(Scaler,U402) contains
MICOM.
1) This IC contain A/D converter, Pre-amp and PLL
circuit that converting analog video signal(0.7Vp-p)
through D-sub(J103) Pin to digital signal.
2) This IC Decode TMDS signals of 8 line from DVI-D
Pin (J202) and transmit to LVDS Transmitter.
GM 1501 is Format Converter IC that receives
Digital signal and outputs proper frame signal to
LCD Module Timing(1360°ø768,WXGA).
8. RS-232C PART
This block is composed of Max232c(U504) and
peripheral devices. Input port support communication
of between computer and monitor , output port support
communication of other monitors that linked by RS-
232c cable. By using this port computer can control
this monitor
And GM1501 can send/receive by using RX,TX port of
Max232C
9. DC/DC Converter block
DC/DC Converter convert the input 12V, 24V to proper
2.5V, 3.3V, 5V, 1.8V for main control system.
For shooting heat trouble, we use the DC/DC
converting IC.
10. Power Supply Block
This Block generates DC Voltages(5V, 12V, 18V and
24V) to Main Control system from AC Power(100-240
V, 50/60 Hz, 1.0 A).
This Circuit contains PFC(Power Factor correction)
circuit.
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ADJUSTMENT
Windows EDID V1.0 User Manual
Operating System: MS Windows 98, 2000, XP
Port Setup: Windows 98 => Don’t need setup
Windows 2000, XP => Need to Port Setup.
This program is available to LCD Monitor only.
1. Port Setup
a) Copy “UserPort.sys”file to
“c:\WINNT\system32\drivers”folder
b) Run Userport.exe
c) Remove all default number
d) Add 300-3FF
e) Click Start button.
f) Click Exit button.
2. EDID Read & Write
1) Run WinEDID.exe
2) Edit Week of Manufacture, Year of Manufacture,
Serial Number
a) Input User Info Data
b) Click “Update”button
c) Click “Write”button
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- 19 -
DVI-D Connector
220
IBM
Compatible PC
Parallel Port
Power inlet (required)
Power LED
ST Switch
Power Select Switch
(110V/220V)
Control Line
Not used
RS232C
PARALLEL
V-SYNC POWER
ST
VGS MONITOR
E
V-Sync On/Off Switch
(Switch must be ON.)
F
A
B
C5V
E
F
A
B
C
1510
5
569
1
1
1
14
13
25
6
5V
5V
4.7K
4.7K
4.7K
74LS06
74LS06
OFF ON
OFF
ON
11
Figure 1. Cable Connection
- When entering Service mode : Press the Menu key using a remote controller and input the number (3 -> 0
-> 2 -> 0) to enter Service mode.
1. MODEL : Shows the model name of the current product.
2. NVRAM INITIAL : Initiates the EEPROM setting with the factory-setting value. The default value is
"OFF". Left and right key can be used for operation.
3. (AV) MICOM VERSION : Shows the MICOM version of the set.
Displays as a number including the event type and date information
5. (AV) VCHIP TEST : Menu for VCHIP test. This menu is used to test whether the VCHIP is working
properly at the VCHIP signal input by setting as "ON".
6. (AV) SDRAM DELAY : Sets the SDRAM delay value.
7. (AV) 9888 SETTING : Sets the AD9888 register. When you move to the sub-menu, you can set the offset
and gain for each RGB and set automatic offset/gain on/off.
4. (PC) Aging Mode : Sets Aging Mode on/off.
5. (PC) HDCP Enable : Sets HDCP Enable on/off.
6. (PC) WB : White balance adjustment mode.
When operating with the left or right key after black signal input, WB will become "1".
Next, input the white signal and operate again and WB becomes 2 and white
balance adjustment will be completed.
7. (PC) MODE SEL : Sets the panel mode. (Select one of 1024*768, 1280*768, 1360*768 (default)).
SERVICE OSD
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