AOC Adelpia TGL2010A User manual

20″LCD Color Monitor Adelpia TGL2010A
1
Service
Service
Service
Horizontal Frequency
31KHz-82KHz
TABLEOFCONTENTS
Description Page Description Page
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.
Table Of Contents.......…….................……...........…........1
Important Safety Notice.………….…..................……......2
Revision List.…........................………................……......3
1.Monitor Specifications…...............................………........4
2.LCD Monitor Description…………………………….......5
3.Operation Instruction…………...............……...........6
3.1 General Instructions.......................................…...........6
3.2 Control Buttons………..…….…..............……...............6
3.3 Adjusting the Picture...........................…............8
4.Input/Output Specification............……………............10
4.1 Input Signal Connector......….…..……........…….........10
4.2 Factory Preset Display Modes........…...............11
4.3 Power Supply Requirement…………………………....12
4.4 Panel Specification..............………………..................13
5.Block Diagram…….…...................…………................15
5.1 Software Flow Chart…………………….……....….......15
5.2 Electrical Block Diagram…………..……..…..….......17
6.Schematic……………...............................….....19
6.1 Main Board..............................................................19
6.2 Power Board....…………..........……........................24
6.3 Audio Board....…………….......……........................26
7.PCB Layout..…………...........……...........................27
7.1 Main Board………..................……....................27
7.2 Power Board…....................……………..................30
7.3 Key Board……….....…….............……….................32
8.Maintainability………............................……….........33
8.1 Equipments and Tools Requirement......……….......33
8.2 Trouble Shooting………………................................33
9.White-Balance, Luminance adjustment.............39
10. Monitor Exploded View……...………………............40
11.BOM List…................……......................….............41
12. Different Parts List…………………………………….56
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING

20″LCD Color Monitor Adelpia TGL2010A
2
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.)

20″LCD Color Monitor Adelpia TGL2010A
3
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

20″LCD Color Monitor Adelpia TGL2010A
4
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)
Viewable angle 160(H) 160(V)
Response time (type) 5 ms
Display Color 16.7M
Contrast Ratio 800:1
LCD Panel
White Luminance 300cd/m2
Sync. Type H/V TTL
Input Connector D-Sub 15pin，DVI 24pin
Input Video Signal Analog, Digital
H-Frequency 31kHz – 82kHz
Input
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
Maximum Screen Size Horizontal : 459.4mm
Vertical: 296.4mm
Dimensions 398.5 mm (H) x472.3 mm (W) x182 mm (D)(NO Packed)
Weight Monitor only: 5.5 kg
Environmental
Considerations
Operating Temp: 5°C to 35°C
Storage Temp: -20°C to 60°C
Operating Humidity: 10% to 85%

20″LCD Color Monitor Adelpia TGL2010A
5
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
AC-IN
100V-240V
Power Board
Flat Panel and
CCFL Backlight
Main Board
Key board
RS232 Connector
For white balance
adjustment in factory
mode
HOST Computer
CCFL Drive.
Video signal, DDC

20″LCD Color Monitor Adelpia TGL2010A
6
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

20″LCD Color Monitor Adelpia TGL2010A
7

20″LCD Color Monitor Adelpia TGL2010A
8
3.3 Adjusting the Picture
THE DESCRIPTION FOR CONTROL FUNCTION:
Main Menu
Item
Main
Menu
Icon
Sub Menu
Item Sub Menu Icon Description
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.
User / Red
Red Gain from Digital-register.
User / Green
Green Gain Digital-register.
Color
Temp.
User / Blue
Blue Gain from Digital-register.
Analog N/A Select input signal from analog source (D-Sub)
Input
Select
Digital N/A Select input signal from digital source (DVI)

20″LCD Color Monitor Adelpia TGL2010A
9
H. Position
Adjust the horizontal position of the OSD.
V. Position
Adjust the vertical position of the OSD.
OSD Setup
OSD Timeout
Adjust the OSD timeout.
Language
Language N/A Select the language you like.
Information
Information N/A Show the resolution, H/V frequency and input port of
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

20″LCD Color Monitor Adelpia TGL2010A
10
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 -

20″LCD Color Monitor Adelpia TGL2010A
11
4.2 Factory Preset Display Modes
VESA MODES
Horizontal Vertical
Mode Resolution Total
Nominal
Frequency
+/- 0.5kHz
Sync
Polarit
y
Nominal
Freq.
+/- 1 Hz
Sync
Polari
ty
Nominal
Pixel Clock
(MHz)
640x480@60Hz 800 x 525 31.469 N 59.940 N 25.175
640x480@72Hz 832 x 520 37.861 N 72.809 N 31.500
VGA
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
800x600@72Hz 1040 x 666 48.077 P 72.188 P 50.000
SVGA
800x600@75Hz 1056x625 46.875 P 75.000 P 49.500
1024x768@60Hz 1344x806 48.363 N 60.004 N 65.000
1024x768@70Hz 1328x806 56.476 N 70.069 N 75.000
XGA
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
1024x768@60Hz 1312x813 48.780 N 60.001 N 64.000XGA
1024x768@75Hz 1328x804 60.241 N 74.927 N 80.000

20″LCD Color Monitor Adelpia TGL2010A
12
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
Power line surge No advance effects (no loss of information or defect)
with a maximum of 1 half-wave missing per second
DC output Voltage 12VDC± 5％

20″LCD Color Monitor Adelpia TGL2010A
13
4.4 Panel Specification
LM201WE3
4.4.1 General Features
4.4.2 Optical Characteristics

20″LCD Color Monitor Adelpia TGL2010A
14
4.4.3 Electrical Characteristics

20″LCD Color Monitor Adelpia TGL2010A
15
5. Block Diagram
5.1 Software Flowing Chart
1
2
N
Y
5
Y
N
10
Y
N
12
Y
N
7
Y
N
6
4
3
8
9
14
11
13
Y
N
15
Y
N
16
17
19
Y
N
18

20″LCD Color Monitor Adelpia TGL2010A
16
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?

20″LCD Color Monitor Adelpia TGL2010A
17
5.2 Electrical Block Diagram
5.2.1 Main Board
OSD Control Interface
(CN403)
Scalar TSUMU58J
(Include MCU, ADC, OSD)
(U401)
Flash Memory
PM25LV010-25 SCE
(U402)
EEPROM
24LC16B
(
U403
)
D-Sub
Connector
(CN405)
EEPROM
M24C02
(U405)
R
G
B
RXD
TXD
Digital video
signal
EPR_SDA
EPR_SCL
LCD Interface
(CN101)
H
V
DVI
Connector
(CN406)
EEPROM
M24C02
(U404)
DB15_SDA
DB15_SCL
DDC_SCL_DVI,
DDC_SDA_DVI

20″LCD Color Monitor Adelpia TGL2010A
18
5.2.2 Power Board
DIM
DIM
EMI filter
Start Circuit: R904、R932、R933
PWM
Control IC
Transformer
AC input
12V
ON/OFF
Control
PWM
Control IC
Feedback
Circuit
Output
Circuit Transformer MOSFET
Over
Voltage
Lamp
ON/OFF
Over
Voltage
Protect
5V
Bridge
Rectifier
and Filter
Feedback
Circuit
Rectifier
diodes

20″LCD Color Monitor Adelpia TGL2010A
19
6. Schematic
6.1 Main Board
+12V
TOP
A
TSUMO56J
B
15Thursday , March 02, 2006
Tit le
Size D ocument N umber Rev
Date: Sheet of
XGA/SXGA
TSUMO56J SCHEMATIC
B5
5.PANEL INTERF ACE
PB[0..9]
PA[0..9]
VLCD
+5V
B2
2.POW ER
on_Panel
on_BACKLIGHT
Adj_BACKLIGHT
VCC1.8
VLCD
+5V
VCTRL
VCC3.3
+12V
B3
3.INPUT
RIN
GIN
BIN
VSYNC
GNDR
GNDG
GNDB
DET_VGA
HSYNC
SOG
B+
CLK-
DET_DVI
CLK+
R+
G+
R-
B-
G-
DDCA_SDA
DDCA_SCL
DDCD_SDA
DDCD_SCL
DDC_WP
+5V
B4
4.SCALER
RIN
GIN
SOG
BIN
GNDR
GNDG
GNDB
HSYNC
VSYNC
Adj_BACKLIGHT
VCC1.8
Vcc3.3
VCTRL
R+
R-
G-
G+
B+
B-
CLK+
CLK-
DDCD_SDA
DDCD_SCL
DET_DVI
DDCA_SDA
DDCA_SCL
DET_VGA
on_BACKLIGHT
on_Panel
+5V
+12V
DDC_WP
PA[0..9]
PB[0..9]
PA[0..9]
+5VVCC1.8 +12V
VCC1.8
VCC3.3
VLCD
VCC3.3
PB[0..9]
+5V
LVDS OUTPUT
VLCD

20″LCD Color Monitor Adelpia TGL2010A
20
+12V 4
CN701
CONN
2
4
6
8
10
12
1
3
5
7
9
11
VLCD
VCC3.3
VCC1.8 4
+3V3
+5V
+5V
GND
H3
TP
1 2 3
4
5
6 7 8
9
1 2 3
4
5
6 7 8
9
VCC3.3 4
Q701
PMBS3904
+5V
VCC3.3 4
+5V
+
C702
4.7uF/16V
+5V3,4
+5V
C715
1uF/16V
POWER
A
TSUMO56J
B
25Thursday , March 23, 2006
Tit l e
Size Document Number Rev
Date: Sheet of
GND
GND
+5V
+5V
R705 4.7K 1/16W
R710 N C
VLCD 5
BL_ON
R727
10K 1/16W
Q706
PMBS3904
+3V3
C713
0.1uF
+5V
C706
0.1uF
C704
NC/0.1uF
R701
1K 1/16W
R725 4. 7K 1/16W
R708
10K 1/16W
+12V C708
1uF/16V
C714
0.1uF
+5V
SOT-223
+12V
FTD7
FD Mark
VCC1.8
R714
10K 1/10W
FTD9
FD Mark
D704
SR24
+3V3
R723 10K 1/16W
BL_ADJ
U702
1084-ADJ
3 2
1
VI VO
ADJ
+
C707
100uF/ 25V
on_Panel4
U701
NC/LT1117-18
3 2
1
4
VI VO
GND
VO
H1
TP
1 2 3
4
5
6 7 8
9
1 2 3
4
5
6 7 8
9
+
C710
100uF/ 25V
Q704
AO3401L
+
C717
100uF/ 25V
H2
TP
1 2 3
4
5
6 7 8
9
1 2 3
4
5
6 7 8
9
R706 N C
R722
NC
+5V
R707 4.7K 1/16W
VCC3.3
+
C712
100uF/ 16V
Q702
PZT2907A
+12V
GND
R715
NC
+
C703
NC/100uF/16V
GND
Q703
PMBS3904
R712 4.7K 1/16W
C711
0.1uF
+5V3,4
R717
10K 1/16W
R703
2K 1/16W
D701
GS1D
Adj_BACKLIGHT 4
FTD8
FD Mark
R702
51 1/16W
R716
NC
C701
NC/0.1uF
R704
100 1/16W
R711
10K 1/16W
on_BACKLIGH T 4
+3V3
C709
0.1uF
GND
TO-263
Q705
PMBS3906
D702
LL4148
C718
0.1uF
VCTRL 4
R721
0