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22" LCD Color Monitor Adelpia TGL2260A
Service
Service
Service
Horizontal Frequency
30KHz-80KHz
TABLE OF CONTENTS
Description Page Description Page
Table Of Contents..........................................................1 5.1 Software Flow Chart..........................................17
Important Safety Notice...............................................2 5.2 Electrical Block Diagram.....................................19
Revision List.................................................................3 6.Schematic............................................................21
1.Product Feature...............................................4 6.1 Main Board..............................................................21
2.LCD Monitor Description........................................5 6.2 Power Board........................................................26
3.Operation Instruction............................................6 7.PCB Layout..........................................................29
3.1 General Instructions.....................................................6 7.1 Main Board.....................................................29
3.2 Control Buttons........................................................6 7.2 Power Board.......................................................32
3.3 Adjusting the Picture..........................................8 7.3 Key Board..........................................................33
4.Input/Output Specification.......................................11 8.Maintainability.......................................................34
4.1 Input Signal Connector............................................11 8.1 Equipments and Tools Requirement......................34
4.2 Factory Preset Display Modes..........................12 8.2 Trouble Shooting..................................................34
4.3 Power Supply Requirement..................................13 9.White-Balance, Luminance adjustment.............40
4.4 Panel Specification..................................................14 10. Monitor Exploded View.......................................41
5.Block Diagram.........................................................17 11.BOM List...............................................................42
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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22" LCD Color Monitor Adelpia TGL2260A
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.)
2
22" LCD Color Monitor Adelpia TGL2260A
Revision List
Version Date Revision History TPV Model Name
A00 Feb.-11-08 Initial Release TC7CMANF4WUQDN
3
22" LCD Color Monitor Adelpia TGL2260A
1. Monitor Specifications
4
22" LCD Color Monitor Adelpia TGL2260A
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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22" LCD Color Monitor Adelpia TGL2260A
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 Front Panel Control
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22" LCD Color Monitor Adelpia TGL2260A
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22" LCD Color Monitor Adelpia TGL2260A
3.3 Adjusting the Picture
8
22" LCD Color Monitor Adelpia TGL2260A
9
22" LCD Color Monitor Adelpia TGL2260A
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22" LCD Color Monitor Adelpia TGL2260A
4. Input/Output Specification
4.1 Input Signal Connector
D-SUB
11
22" LCD Color Monitor Adelpia TGL2260A
DVI
12
22" LCD Color Monitor Adelpia TGL2260A
4.2 Factory Preset Display Modes
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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22" LCD Color Monitor Adelpia TGL2260A
4.4 Panel Specification
CLAA220WA01 is 22.0" color TFT-LCD (Thin Film Transistor Liquid Crystal Display) module composed of LCD panel,
driver ICs, control circuit and backlight. By applying 6 bit digital data,1680×1050, 16.7M-color images are displayed on
the 21.6" diagonal screen. Input power voltage is 5.0V for LCD driving. Inverter for backlight is not included in this
module.
4.4.1 General Features
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22" LCD Color Monitor Adelpia TGL2260A
4.4.2 Optical Characteristics
Ta=25VCC=5.0V
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22" LCD Color Monitor Adelpia TGL2260A
4.4.3 Electrical Characteristics
(1).TFT-LCD
(2).Backlight
16
22" LCD Color Monitor Adelpia TGL2260A
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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22" LCD Color Monitor Adelpia TGL2260A
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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22" LCD Color Monitor Adelpia TGL2260A
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
Key Board Connector signal TXD V
B
(CN401)
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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22" LCD Color Monitor Adelpia TGL2260A
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
20
22" LCD Color Monitor Adelpia TGL2260A
6. Schematic
6.1 Main Board
B3
TSUMU58J B4
SCHEMATIC
HDCP_RST HDCP_RST
RIN
GNDR
GIN
RIN
GNDR
GIN
LVDS OUTPUT
GNDG GNDG
SOG SOG
+5V BIN BIN
GNDB GNDB
HSY NC HSY NC VCC1.8 VCC3.3 +5V
VSY NC VSY NC
DDCA_SDA DDCA_SDA
DDCA_SCL DDCA_SCL
+5V
DDC_WP DDC_WP VCC1.8
R+ R+
R- R- Vcc3.3
G+ G+
G- G- +5V
B+ B+
B- B-
CLK+ CLK+
CLK- CLK-
DDCD_SDA DDCD_SDA
DDCD_SCL DDCD_SCL
DET_INPUT DET_INPUT
3.INPUT
B2
VCC3.3 +5V VCC1.8
on_BACKLIGHT on_BACKLIGHT
on_Panel on_Panel
MUTE MUTE
VOL VOL
VCC1.8
+5V Adj_BACKLIGHT Adj_BACKLIGHT B5
VCC3.3 IDX IDX
PA[0..9]
VLCD PA[0..9] PA[0..9]
PB[0..9]
PB[0..9] PB[0..9]
VLCD
2.POWER
VLCD
VLCD
4.SCALER 5.PANEL INTERFACE
TPV ( Top Victory Electronics Co . , Ltd. ) OEM MODEL PLE2202WS Size Custom
G2573-1-X-X-8-070629 TPV MODEL TC7CMADB3WY 2A Rev H
Key Component 1-2.TOP PCB NAME 715G2573-1
Bill huang
Date Friday , June 29, 2007 Sheet 2 of 6
21
22" LCD Color Monitor Adelpia TGL2260A
+5V
+3V3
+5V 2007/2/6
+
C709 C710 R701
0.1uF 16V 100uF/25V 1K 1/16W
CN701 R705
R706 NC
1 100R 1/16W
2 +3V3
3 C708
4 Q701 R707
Adj_BACKLIGHT 4
5 DIM NC 4K7 1/16W
6 ON/OFF PMBS3904
7 PANEL_ID
8 R709 R708 +3V3
VOL 4
9 0R05 1/16W 10K 1/16W
MUTE 4
R710 NC
R711
CONN
10K 1/16W
Q703 R712
on_BACKLIGHT 4
C711 4K7 1/16W
0.1uF 16V PMBS3904
+3V3 U703
3 2
VIN VOUT
VSS
R736
NC AP1117E33LA
1
IDX 4
+5V
R735
NC
U702
ADJ(GND)
3,4 +5V
VOUT
D704 NC/AP1117D33LA VCC3.3
VIN
SM340A
VCC3.3 4
3
2
1
lay C713 + C714
C712
0.1uF 16V 10uF/50V 0.1uF 16V
U704
+5V /AP1117E18LA
VLCD 3 2
VI VO
5
GND
VLCD
+5V
R714
10K 1/16W
R718 R717 D703
1
10K 1/16W 10K 1/16W FA20-04 VCC1.8
Q704
R723 AO3401 U701 VCC1.8 4
10K 1/16W NC/AIC1084-18PM
Q706 C719 3 2
R725 4K7 1/16W 1uF 10V IN OUT C725
Q707 PMBS3904 C715 +
GND
4 on_Panel
PMBS3904 + R727 C702 0.1uF 16V
C718 NC C717 10K 1/16W C724 220uF/25V
10uF/50V 0.1uF 16V
NC
1
T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL PLE2202WS Size Custom
G2573-1-X-X-8-070629 TPV MODEL TC7CMANF4WUGDN Rev H
Key Component 2-1.POWER PCB NAME 715G2573-1
Bill huang
Date 22
Friday , September 07, 2007 Sheet 3 of 6
22" LCD Color Monitor Adelpia TGL2260A
CN405
17
DB15
11 1 RED+ FB410 0R05 1/16W R434 56 1/16W C432 0.047uF
RIN 4
6 RED-
12 2 GREEN+ FB411 0R05 1/16W R435 56 1/16W C433 0.047uF
GIN 4
7 GREEN-
13 3 BLUE+ FB412 0R05 1/16W R436 56 1/16W C434 0.047uF
BIN 4
8 BLUE-
14 4 PC5V R437 470R 1/16W C435 1000pF
75R 1/16W
75R 1/16W
SOG 4
9 PC5V R438
R440
15 5 VGA_CON
R439
10 75R 1/16W
R441 100R 1/16W C436 0.047uF
GNDR 4
16
R442 100R 1/16W C437 0.047uF
GNDG 4
R443 100R 1/16W C438 0.047uF
GNDB 4
3
3
3
+5V
D403 D404 D405
D406
BAV99 BAV99 BAV99 +5V 2,4
ESD_5V
R444 DET_VGA R445 100R 1/16W
DET_INPUT
4
10K 1/16W DET_DVI R458 100R 1/16W
2
1
2
1
2
1
RLZ5.6B C439 C440 C441
0.047uF 0.047uF 0.047uF
DET_VGA +5V PC5V
HSI FB409 120 OHM R446 1K 1/16W
HSY NC 4
D407
VSI R447 1K 1/16W
VSY NC 4 BAV70
R448 C442 R449 C443 R452
D408 D409 D410 10K 1/16W
2K2 1/16W 22pF 2K2 1/16W 220pF
RLZ5.6B RLZ5.6B RLZ5.6B R451 C444
R450 U404
4K7 1/16W 4K7 1/16W 8 1 0.1uF 16V
7 VCC A0 2
SCL_VGA R453 100R 1/16W 6 WP A1 3
SDA_VGA R454 100R 1/16W 5 SCL A2 4
SDA VSS
+5V
4 DDCA_SDA
AF24BC02-SI
4 DDCA_SCL
D411 D412
R471
RLZ5.6B RLZ5.6B DDC_WP 4
10K 1/16W +5V DVI5V
CN406
8
VSYNC 15 DET_DVI DVI5V D413
SY NC GND 6 SCL_DVI R455 100R 1/16W
DDC SCL 7 SDA_DVI R456 100R 1/16W BAV70
DDC SDA 14 DVI5V R457 10K 1/16W
+5V 16 HPD
HPD Q406 R401
11 NC
1/3shield HDCP_RST 4
3 R472 D426 D414 D415 D416 C445 NC R459 R460 C446
2/4shield 19 4K7 1/16W U405
0/5shield 22 NC RLZ5.6B RLZ5.6B RLZ5.6B RLZ5.6B 0.1uF 16V 4K7 1/16W 8 1 0.1uF 16V
clk shield 10K 1/16W R461 7 VCC A0 2
18 DAT0+ R462 10R 1/16W 6 WP A1 3
DAT0+ B+ 4 SCL A2
17 DAT0- R463 10R 1/16W 5 4
DAT0- B- 4 SDA VSS
10 DAT1+ R464 10R 1/16W
DAT1+ G+ 4
9 DAT1- R465 10R 1/16W
DAT1- G- 4
2 DAT2+ R466 10R 1/16W AF24BC02-SI
DAT2+ R+ 4 4 DDCD_SDA
1 DAT2- R467 10R 1/16W
DAT2- R- 4 4 DDCD_SCL
13 R468 10R 1/16W
DAT3+ CLK+ 4
12 R469 10R 1/16W
DAT3- CLK- 4 DDC_WP 4
5
DAT4+ 4 +5V
DAT4- 21
DAT5+ 20 R473
DAT5- 23 DCLK+
clk+ 24 DCLK- NC
GND
GND
clk- R470
1K 1/16W
ESD_5V
3
3
3
3
3
3
3
3
D424
26
25
JACK D417 D418 D419 D420 D421 D422 D423 BAV99
BAV99 BAV99 BAV99 BAV99 BAV99 BAV99 BAV99
C447 C448 C449 C450 C451 C452 C453 C454 D425
RLZ5.6B