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20 LCD Color Monitor Adelpia TGL2010A
Service
Service
Service
Horizontal Frequency
31KHz-82KHz
TABLE OF CONTENTS
Description Page Description Page
Table Of Contents..........................................................1 5.2 Electrical Block Diagram.....................................17
Important Safety Notice...............................................2 6.Schematic......................................................19
Revision List.................................................................3 6.1 Main Board..............................................................19
1.Monitor Specifications...................................................4 6.2 Power Board........................................................24
2.LCD Monitor Description........................................5 6.3 Audio Board........................................................26
3.Operation Instruction............................................6 7.PCB Layout..........................................................27
3.1 General Instructions.....................................................6 7.1 Main Board.....................................................27
3.2 Control Buttons........................................................6 7.2 Power Board........................................................30
3.3 Adjusting the Picture..........................................8 7.3 Key Board...........................................................32
4.Input/Output Specification.......................................10 8.Maintainability.......................................................33
4.1 Input Signal Connector............................................10 8.1 Equipments and Tools Requirement......................33
4.2 Factory Preset Display Modes..........................11 8.2 Trouble Shooting..................................................33
4.3 Power Supply Requirement..................................12 9.White-Balance, Luminance adjustment.............39
4.4 Panel Specification..................................................13 10. Monitor Exploded View.......................................40
5.Block Diagram.........................................................15 11.BOM List...............................................................41
5.1 Software Flow Chart.............................................15 12. Different Parts List...........................................56
SAFETY NOTICE
ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSIS
AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING ELECTRONIC
EQUIPMENT CONTAINING HIGH VOLTAGES.
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING
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20 LCD Color Monitor Adelpia TGL2010A
Important Safety Notice
Proper service and repair is important to the safe, reliable operation of all AOC Company Equipment. The service
procedures recommended by AOC and described in this service manual are effective methods of performing service
operations. Some of these service operations require the use of tools specially designed for the purpose. The special
tools should be used when and as recommended.
It is important to note that this manual contains various CAUTIONS and NOTICES which should be carefully read in
order to minimize the risk of personal injury to service personnel. The possibility exists that improper service methods
may damage the equipment. It is also important to understand that these CAUTIONS and NOTICES ARE NOT
EXHAUSTIVE. AOC could not possibly know, evaluate and advise the service trade of all conceivable ways in which
service might be done or of the possible hazardous consequences of each way. Consequently, AOC has not
undertaken any such broad evaluation. Accordingly, a servicer who uses a service procedure or tool which is not
recommended by AOC must first satisfy himself thoroughly that neither his safety nor the safe operation of the
equipment will be jeopardized by the service method selected.
Hereafter throughout this manual, AOC Company will be referred to as AOC.
WARNING
Use of substitute replacement parts, which do not have the same, specified safety characteristics might create shock,
fire, or other hazards.
Under no circumstances should the original design be modified or altered without written permission from AOC. AOC
assumes no liability, express or implied, arising out of any unauthorized modification of design.
Servicer assumes all liability.
FOR PRODUCTS CONTAINING LASER:
DANGER-Invisible laser radiation when open AVOID DIRECT EXPOSURE TO BEAM.
CAUTION-Use of controls or adjustments or performance of procedures other than those specified herein may result
in hazardous radiation exposure.
CAUTION -The use of optical instruments with this product will increase eye hazard.
TO ENSURE THE CONTINUED RELIABILITY OF THIS PRODUCT, USE ONLY ORIGINAL MANUFACTURER'S
REPLACEMENT PARTS, WHICH ARE LISTED WITH THEIR PART NUMBERS IN THE PARTS LIST SECTION OF
THIS SERVICE MANUAL.
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 is grounded through wristband.
-Do not leave the module in high temperature and in areas of high humidity for a long time.
-Avoid contact with water as it may a short circuit within the module.
-If the surface of panel becomes dirty, please wipe it off with a soft material. (Cleaning with a dirty or rough cloth may
damage the panel.)
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20 LCD Color Monitor Adelpia TGL2010A
Revision List
Version Date Revision History TPV Model Name
A00 Oct-16-06 Initial Release TA6GM1DFW1UGNP
A01 Mar.-27-07 Add TPV Model in item 12 TA6CM1DFW1UGNP
A02 May.-14-07 Add TPV Model In Item 12 TA6GM1DFW1UGNC
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20 LCD Color Monitor Adelpia TGL2010A
1. Monitor Specifications
Items Description
Driving system TFT Color LCD
Panel Type LM201WE3
Size 51.1cm (20.1")
Pixel pitch 0.258mm (H) x 0.258mm (V)
LCD Panel Viewable angle 160(H) 160(V)
Response time (type) 5 ms
Display Color 16.7M
Contrast Ratio 800:1
White Luminance 300cd/m2
Sync. Type H/V TTL
Input Connector D-Sub 15pinDVI 24pin
Input Input Video Signal Analog, Digital
H-Frequency 31kHz 82kHz
V-Frequency 56-75Hz
ON Mode 49W
Power Consumption
OFF Mode 1W
Max Dot Clock 146.25MHz
Max. Resolution 1680 x 1050
Plug & Play VESA DDC2BTM
Power Source 100~240VAC,47~63Hz
Horizontal : 459.4mm
Maximum Screen Size
Vertical: 296.4mm
Dimensions 398.5 mm (H) x472.3 mm (W) x182 mm (D)(NO Packed)
Weight Monitor only: 5.5 kg
Operating Temp: 5°C to 35°C
Environmental
Storage Temp: -20°C to 60°C
Considerations
Operating Humidity: 10% to 85%
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20 LCD Color Monitor Adelpia TGL2010A
2. LCD Monitor Description
The LCD monitor will contain a main board, a power board, and a key board which house the flat panel control logic,
brightness control logic and DDC.
The Inverter board will drive the backlight of panel and DC-DC conversion.
Monitor Block Diagram
CCFL Drive.
Flat Panel and
CCFL Backlight
RS232 Connector
Power Board Main Board For white balance
adjustment in factory
mode
Key board
HOST Computer Video signal, DDC
AC-IN
100V-240V
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20 LCD Color Monitor Adelpia TGL2010A
3. Operating Instructions
3.1 General Instructions
Press the power button to turn the monitor on or off. The other control buttons are located at front panel of the
monitor. By changing these settings, the picture can be adjusted to your personal preferences.
· The power cord should be connected.
· Connect the video cable from the monitor to the video card.
· Press the power button to turn on the monitor position. The power indicator will light up.
3.2 Control Buttons
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20 LCD Color Monitor Adelpia TGL2010A
3.3 Adjusting the Picture
THE DESCRIPTION FOR CONTROL FUNCTION:
Main
Main Menu Sub Menu
Menu Sub Menu Icon Description
Item Item
Icon
Contrast Contrast from Digital-register.
Luminance
Brightness Backlight Adjustment
Focus Adjust Picture Phase to reduce Horizontal-Line noise
Image
Setup
Clock Adjust picture Clock to reduce Vertical-Line noise.
H. Position Adjust the horizontal position of the picture.
Image
Position
V. Position Adjust the vertical position of the picture.
Warm N/A Recall Warm Color Temperature from EEPROM.
Cool N/A Recall Cool Color Temperature from EEPROM.
sRGB N/A Recall sRGB Temperature from EEPROM.
Color
User / Red Red Gain from Digital-register.
Temp.
User / Green Green Gain Digital-register.
User / Blue Blue Gain from Digital-register.
Input Analog N/A Select input signal from analog source (D-Sub)
Select
Digital N/A Select input signal from digital source (DVI)
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20 LCD Color Monitor Adelpia TGL2010A
H. Position Adjust the horizontal position of the OSD.
OSD Setup V. Position Adjust the vertical position of the OSD.
OSD Timeout Adjust the OSD timeout.
Language Language N/A Select the language you like.
Show the resolution, H/V frequency and input port of
Information Information N/A
current input timing.
Yes N/A Clear each old status of Auto-configuration.
Reset
No N/A Do not execute reset, return to main menu.
Exit N/A N/A Exit OSD
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20 LCD Color Monitor Adelpia TGL2010A
4. Input/Output Specification
4.1 Input Signal Connector
Pin No. Description Pin No. Description
1. Red 9. +5V
2. Green 10. Logic Ground
3. Blue 11. NC
4. NC 12. DDC-Serial Data
5. DDC-Return 13. H-Sync
6. R-Ground 14. V-Sync
7. G-Ground 15. DDC-Serial Clock
8. B-Ground
VGA connector
Pin No. Description Pin No. Description
1. TMDS Data 2- 13. TMDS Data 3+
2. TMDS Data 2+ 14. +5V Power
3. TMDS Data 2/4 Shield 15. Ground(for+5V)
4. TMDS Data 4- 16. Hot Plug Detect
5. TMDS Data 4+ 17. TMDS Data 0-
6. DDC Clock 18. TMDS Data 0+
7. DDC Data 19. TMDS Data 0/5 Shield
8. Analog Vertical Sync 20. TMDS Data 5-
9. TMDS Data 1- 21. TMDS Data 5+
10. TMDS Data 1+ 22. TMDS Clock Shield
11. TMDS Data 1/3 Shield 23. TMDS Clock +
12. TMDS Data 3- 24. TMDS Clock -
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20 LCD Color Monitor Adelpia TGL2010A
4.2 Factory Preset Display Modes
VESA MODES
Horizontal Vertical
Nominal Sync Nominal Sync Nominal
Mode Resolution Total Frequency Polarit Freq. Polari Pixel Clock
+/- 0.5kHz y +/- 1 Hz ty (MHz)
640x480@60Hz 800 x 525 31.469 N 59.940 N 25.175
VGA 640x480@72Hz 832 x 520 37.861 N 72.809 N 31.500
640x480@75Hz 840 x 500 37.500 N 75.00 N 31.500
800x600@56Hz 1024 x 625 35.156 N/P 56.250 N/P 36.000
800x600@60Hz 1056 x 628 37.879 P 60.317 P 40.000
SVGA
800x600@72Hz 1040 x 666 48.077 P 72.188 P 50.000
800x600@75Hz 1056x625 46.875 P 75.000 P 49.500
1024x768@60Hz 1344x806 48.363 N 60.004 N 65.000
XGA 1024x768@70Hz 1328x806 56.476 N 70.069 N 75.000
1024x768@75Hz 1312x800 60.023 P 75.029 P 78.750
1280x1024@60Hz 1688x1066 63.981 P 60.020 P 108.000
SXGA
1280x1024@75Hz 1688x1066 79.976 P 75.025 P 135.000
WSXGA 1680x1050@60Hz 2240x1089 65.29 N 59.95 P 146.25
IBM MODES
Horizontal Vertical
DOS 720x400@70Hz 900 x 449 31.469 N 70.087 P 28.322
DOS 640x350@70Hz 800 x 449 31.469 P 70.087 N 25.175
XGA 1024x768@72Hz 1304 x 798 57.515 P 72.1 P 75.000
MAC MODES
VGA 640x480@67Hz 864x525 35.000 N 66.667 N 30.240
SVGA
832x624@75Hz 1152x667 49.725 N 74.551 N 57.2832
XGA 1024x768@60Hz 1312x813 48.780 N 60.001 N 64.000
1024x768@75Hz 1328x804 60.241 N 74.927 N 80.000
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20 LCD Color Monitor Adelpia TGL2010A
4.3 Power Supply Requirement
A/C Line voltage range 100 V ~ 240 V
A/C Line frequency range 50 ± 3Hz, 60 ± 3Hz
Peak surge current < 55A peak at 240 VAC and cold starting
Leakage current < 3.5mA
No advance effects (no loss of information or defect)
Power line surge
with a maximum of 1 half-wave missing per second
DC output Voltage 12VDC± 5
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20 LCD Color Monitor Adelpia TGL2010A
4.4 Panel Specification
LM201WE3
4.4.1 General Features
4.4.2 Optical Characteristics
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20 LCD Color Monitor Adelpia TGL2010A
4.4.3 Electrical Characteristics
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20 LCD Color Monitor Adelpia TGL2010A
5. Block Diagram
5.1 Software Flowing Chart
1
Y
2 3
N
4
N
5
Y
6
N
7 8
Y
9
N
10 11
Y
N N
12 13
Y Y
N
14 15 16
Y
17
N
18 19
Y
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20 LCD Color Monitor Adelpia TGL2010A
REMARK:
1) MCU initializes.
2) Is the EPROM blank?
3) Program the EPROM by default values.
4) Get the PWM value of brightness from EPROM.
5) Is the power key pressed?
6) Clear all global flags.
7) Are the AUTO and SELECT keys pressed?
8) Enter factory mode.
9) Save the power key status into EPROM.
Turn on the LED and set it to green color.
Scalar initializes.
10) In standby mode?
11) Update the lifetime of back light.
12) Check the analog port, are they're any signals coming?
13) Does the scalar send out an interrupt request?
14) Wake up the scalar.
15) Are there any signals coming from analog port?
16) Display "No connection Check Signal Cable" message. And go into standby mode after the message
disappears.
17) Program the scalar to be able to show the coming mode.
18) Process the OSD display.
19) Read the keyboard. Is the power key pressed?
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20 LCD Color Monitor Adelpia TGL2010A
5.2 Electrical Block Diagram
5.2.1 Main Board
LCD Interface
(CN101)
Flash Memory
PM25LV010-25 SCE Scalar TSUMU58J
(U402) (Include MCU, ADC, OSD)
(U401)
EPR_SDA R
Digital video RXD H
EPR_SCL G
OSD Control Interface signal TXD V
B
(CN403)
EEPROM DVI D-Sub
24LC16B Connector Connector
(U403) (CN406) (CN405)
DDC_SCL_DVI, DB15_SDA
DDC_SDA_DVI DB15_SCL
EEPROM EEPROM
M24C02 M24C02
(U405) (U404)
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20 LCD Color Monitor Adelpia TGL2010A
5.2.2 Power Board
AC input Bridge Rectifier
Rectifier Transformer diodes
EMI filter
and Filter
Start Circuit: R904R932R933
5V
Over Feedback
PWM
Control IC Voltage Circuit
Protect 12V
ON/OFF
Output
Circuit MOSFET
Transformer
Lamp
Feedback Over ON/OFF
Voltage PWM Control
Circuit DIM
Control IC
DIM
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20 LCD Color Monitor Adelpia TGL2010A
6. Schematic
6.1 Main Board
B3
TSUMO56J XGA/SXGA
B4
SCHEMATIC
LVDS OUTPUT
+5V RIN RIN
GNDR GNDR
GIN GIN
GNDG GNDG
SOG SOG
BIN BIN
GNDB GNDB
HSY NC HSY NC VCC1.8 VCC3.3 +5V +12V
VSY NC VSY NC
DDCA_SDA DDCA_SDA
DDCA_SCL DDCA_SCL
+5V DET_VGA DET_VGA
DDC_WP DDC_WP VCC1.8
R+ R+
R- R- Vcc3.3
G+ G+
G- G- +5V
B+ B+
B- B- +12V
CLK+ CLK+
CLK- CLK-
DDCD_SDA DDCD_SDA
DDCD_SCL DDCD_SCL
DET_DVI DET_DVI
3.INPUT
B5
PA[0..9]
PA[0..9] PA[0..9]
PB[0..9]
PB[0..9] PB[0..9]
+12V
VLCD
VCC1.8
+5V VLCD
B2
VCC3.3 on_BACKLIGHT on_BACKLIGHT
on_Panel on_Panel 5.PANEL INTERFACE
+12V
VCTRL VCTRL
VCC1.8
+5V Adj_BACKLIGHT Adj_BACKLIGHT
VCC3.3 VLCD
Title
VLCD 4.SCALER
TSUMO56J
Size Document Number Rev
2.POWER B TOP A
Date: Thursday , March 02, 2006 Sheet 1 of 5
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20 LCD Color Monitor Adelpia TGL2010A
+5V
U701
SOT-223
NC/LT1117-18
+3V3 H1 H2 H3
R702
VCTRL 4
3 2
VI VO
8
7
6
8
7
6
8
7
6
51 1/16W
4 9 5 9 5 9 5
GND
8
7
6
8
7
6
8
7
6
C701 VO C703 + C704 9 5 4 9 5 4 9 5 4
4 4 4 VCC1.8
1
2
3
1
2
3
1
2
3
NC/0.1uF NC/100uF/16V NC/0.1uF TP TP TP + C702
1
1
2
3
1
2
3
1
2
3
VCC1.8 4
4.7uF/16V
D701
FTD7 FTD8 FTD9
FD Mark FD Mark FD Mark GS1D
Q702 R703
PZT2907A
2K 1/16W
D702
LL4148
+5V
R704
+12V R701
100 1/16W VCC3.3
1K 1/16W
+12V 4
CN701
C706
GND BL_ON VCC3.3 4
+ C707 1 2 R705 4.7K 1/16W R706 NC
0.1uF 100uF/25V GND 3 4 BL_ADJ
+12V 5 6 +12V +5V C708
+5V GND 7 8 GND Q701 R707 4.7K 1/16W
+5V Adj_BACKLIGHT 4
9 10 +5V 1uF/16V
3,4 +5V GND GND
11 12 R708 PMBS3904
+5V
10K 1/16W
C709 CONN R710 NC R711
+ C710
0.1uF 100uF/25V C711 10K 1/16W
+5V
0.1uF
Q703 R712 4.7K 1/16W
on_BACKLIGHT 4 3,4 +5V
PMBS3904
D704
SR24
TO-263
U702
VCC3.3
1084-ADJ
3 2
VI VO VCC3.3 4
C712
ADJ
C713 + C714
0.1uF 100uF/16V 0.1uF
1
+3V3 +5V +3V3
VLCD
VLCD 5
+5V +3V3
R714 R715
R716
R717 10K 1/10W NC
R721 R722
NC 10K 1/16W Q704
R723 10K 1/16W AO3401L 0 NC
R725 4.7K 1/16W
Q706 Q705
4 on_Panel
PMBS3904 PMBS3906
C715
+ C717 R727
1uF/16V 100uF/25V
C718 10K 1/16W Title
0.1uF TSUMO56J
Size Document Number Rev
B POWER A
Date: Thursday , March 23, 2006 Sheet 2 of 5
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20 LCD Color Monitor Adelpia TGL2010A
CN405
DB15
11 1 RED+ FB410 0 1/16W R434 56 1/16W C432 0.047uF
RED- RIN 4
6
12 2 GREEN+ FB411 0 1/16W R435 56 1/16W C433 0.047uF
GREEN- GIN 4
7
13 3 BLUE+ FB412 0 1/16W R436 56 1/16W C434 0.047uF
BLUE- BIN 4
8
14 4 PC5V R437 470 1/16W C435 0.001uF
75 1/16W
75 1/16W
SOG 4
R440
9 PC5V R438
VGA_CON
R439
15 5
10 75 1/16W
R441 100 1/16W C436 0.047uF
GNDR 4
16
17
R442 100 1/16W C437 0.047uF
GNDG 4
R443 100 1/16W C438 0.047uF
GNDB 4
3
3
3
D403 D404 D405 +5V
BAV99 BAV99 BAV99
D406
+5V 2,4
ESD_5V
MLL5232B 5.6V R444
C439 0.047uF C440 0.047uF C441 0.047uF
10K 1/16W
2
1
2
1
2
1
R445 100 1/16W +5V PC5V
DET_VGA 4
2
1
HSI FB409 120 OHM BEAD R446 1K 1/10W
HSY NC 4
VSI