Adelpia TGL2200A User manual

22” LCD Color Monitor Adelpia TGL2200A
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..............................…..................9
4.Input/Output Specification............……………............11
4.1 Input Signal Connector......….…..……........…….........11
4.2 Factory Preset Display Modes........…...............13
4.3 Power Supply Requirement…………………………....13
4.4 Panel Specification..............………………..................14
5.Block Diagram…….…...................…………................16
5.1 Software Flow Chart…………………….……....….......16
5.2 Electrical Block Diagram…………..……..…..….......18
6.Schematic……………...............................….....20
6.1 Main Board..............................................................20
6.2 Power Board....…………..........……........................24
6.3 Audio Board....…………….......……........................26
7.PCB Layout..………………………………................27
7.1 Main Board………........................……....................27
7.2 Power Board…....................……………..................29
7.3 Key Board……….....…….............……….................31
8.Maintainability………............................……….........32
8.1 Equipments and Tools Requirement......……….......32
8.2 Trouble Shooting………………................................32
9.White-Balance, Luminance adjustment.............38
10. Monitor Exploded View……...………………............39
11.BOM List…................……......................….............40
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING

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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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Revision List
Version Date Revision History TPV Model Name
A00 Jan.-23-07 Initial Release TC6MM1NFWTUGNP

22” LCD Color Monitor Adelpia TGL2200A
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1. Monitor Specifications

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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

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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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22” LCD Color Monitor Adelpia TGL2200A
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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)

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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

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4. Input/Output Specification
4.1 Input Signal Connector

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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
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％

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4.4 Panel Specification
The M220Z1-L01 model is a 22 inch wide TFT-LCD module with a 4-CCFL Backlight Unit and a 30-pin 2ch-LVDS
interface. This module supports 1680 x 1050 WSXGA+ (16:10 wide screen) mode and displays up to 16.7 millions
colors. The inverter module for the Backlight Unit is not built in.
4.4.1 General Features
4.4.2 Optical Characteristics

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4.4.3 Electrical Characteristics
TFT LCD MODULE
BACKLIGHT UNIT

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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

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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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5.2 Electrical Block Diagram
5.2.1 Main Board
EEPROM
M24C02
(U404)
EEPROM
24LC16B
(U403)
Panel Interface
(CN101)
SDA
SCL
Crystal
14.318MHZ
(X401)
Flash Memory
PM25LV010-25 SCE
(U402)
Scalar TSUMU58WJ-LF
(Include MCU, ADC, OSD)
(U401)
H sync
V sync
RGB
VGA_SDA,
VGA
_
SCL
DVI_SDA,
DVI_SCL
D-Data
D-Clock
DVI
Connector
(CN406)
EEPROM
M24C02
(U405)
D-Sub
Connector
(CN405)
Key Control
Interface
(CN403)

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5.2.2 Power Board
DIM
DIM
EMI filter
Start Circuit: R927、R928、R929
PWM
Control IC
Transformer
AC input
24V
ON/OFF
Control
PWM
Control IC
Feedback
Circuit
Output
Circuit Transformer MOSFET
Over
Voltage
Lamp
ON/OFF
12V
Bridge
Rectifier
and Filter
Feedback
Circuit
Rectifier
diodes
CN903
5V

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6. Schematic
6.1 Main Board
715G2186-1
+
C717
100uF/25V
BL_ADJ
D704
SR24
Q703
PMBS3904
C704
NC
R713 NC
VCC3.3 4
+3V3
+3V3
C701
0.1uF
U702
AIC1084-33PM
3
1
2
VIN
ADJ
VOUT
Q704
AO3401
R703
2K 1/10W
R722
NC
TO-263
+3V3
+5V
R716
NC
D701
GS1D
U701
NC
3 2
1
VI VO
GND
CN701
CONN
2
4
6
8
10
12
1
3
5
7
9
11
R701
1K 1/10W
+3V3
VCTRL 4
+
C702
4.7uF/50V VCC1.8 4
+12V
Q706
NC
+5V
R706 NC
R725 4. 7K 1/ 10W
R727
10K 1/10W
GND
GND
GND
GND
+5V
GND
R702
51 1/10W
R710 NC
R712
4.7K 1/10W
Q705
PMBS3906
GND
715G2186-1
B
POWER
Custom
25Thursday , Oct ober 12, 2006
Tit l e
Size Document Number Rev
Date: Sheet of
+12V
R721
0 1/10W
+
C707
NC
VCC3.3
+5V
R723
10K 1/10W
+12V
+ C710
100uF/25V
R704
100 1/10W
Adj_BACKLIGHT 4
C714
0.1uF
+5V
SOT-223
R707
4.7K 1/10W
R709 15K 1/ 10W
+5V
L702
120 OHM
1 2
C711
0.1uF
VCC3.3
C715
0.022uF
C718
NC
Reservation schematic-
for blacklight off have
panel on solution.
R714
10K 1/10W
VCC3.3 4
+5V 3,4
Q701
PMBS3904
R705
4.7K 1/10W
R717
10K 1/10W
VLCD
+5V
on_Panel4
VCC1.8
C708
NC
Q702
PZT2907A
R715
NC
C709
0.1uF
C706
0.1uF
R708
10K 1/10W
+ C703
NC
VLCD 5
on_BACKLIGHT 4
C719
0.1uF
+5V
+ C722
22uF/50V
+ C712
100uF/25V
+5V3,4
R711
10K 1/10W
C713
0.1uF
D702
LL4148