AOC 2219P2 User manual

22" LCD Color Monitor AOC 2219P2
1
Service
Service
Service
Horizontal Frequency
31-83 KHz
TABLE OF CONTENTS
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
Revision List.…........................................……......2
Important Safety Notice.……..................……......3
1.Monitor Specification..............................………........4
2.LCD Monitor Description…………………………….......6
3.Operation Instruction…………...............……...........7
3.1.General Instructions...........................…..........7
3.2.Control Button…………….…..............……...............7
3.3.OSD Menu…………….…...........................…............8
4.Input/Output Specification............……………............12
4.1.Input Signal Connector............………….................12
4.2.Power Supply Requirements...............................13
4.3.Factory Preset Display Modes……..........................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...……....................................25
6.3.Audio Board...……....................................27
6.4.Key Board...…….............................................28
7.PCB Layout..………….......................................29
7.1.Main Board………........................................29
7.2.Power Board….......................................32
7.3.Audio Board….......................................34
7.4.Key Board…………….....................................35
8.Maintainability……….......................................36
8.1.Equipments and Tools Requirement...............36
8.2.Trouble Shooting…………..............................37
9.White-Balance, Luminance adjustment.............43
10.Monitor Exploded View………..…….…............45
11.BOM List…………………………………............46
12.Different Parts List………………............60
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING

22" LCD Color Monitor AOC 2219P2
2
Revision List
Version Release Date Revision History TPV Model Name
A00 May.11, 2008 Initial release TC72MPDBW1A1DI
TC72MPDTWKWRDQ
A01 July 28, 2008 Add new BOM TC72MPDLWKCKDQ

22" LCD Color Monitor AOC 2219P2
3
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 NOTICESARE
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 byAOC 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 may 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 ORIGINALMANUFACTURER'S
REPLACEMENT PARTS, WHICHARE 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.)

22" LCD Color Monitor AOC 2219P2
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1. Monitor Specifications
Model number 2219P2
Driving system TFT Color LCD
Viewable Image
Size 558mm diagoanl
Pixel pitch 0.282mm(H) x 0.282mm(V)
Video R, G, B Analog lnterface & Digital Interface
Separate Sync. H/V TTL
Display Color 16.7M Colors
LCD Panel
Dot Clock 165 MHz
Horizontal scan
range 30 kHz - 80 kHz
Horizontal scan
Size(Maximum) 473.76mm
Vertical scan
range 55 Hz - 75 Hz
Vertical scan
Size(Maximum) 296.10mm
Optimal preset
resolution 1680 x 1050 (60 Hz)
Highest preset
resolution 1680 x 1050 (75 Hz)
Plug & Play VESA DDC2B/CI
Input Connector D-Sub 15pin & DVI-D
Input Video Signal
Analog: 0.7Vp-p(standard), 75 OHM, Positive &
DVI-D Digital Interface (TMDS)
Power Source 100~240VAC, 50/60Hz
Power
Consumption Active < 49 W
Standby < 1 W
Resolution
Speakers 2 x 2W
Connector Type 15-pin Mini D-Sub & DVI-D
Signal Cable Type Detachable
Dimensions &
Weight:
Height (with base)
397.9 mm
Width 505.9 mm
Physical
Characteristics
Depth 249.7 mm

22" LCD Color Monitor AOC 2219P2
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Weight (monitor
only) 6.6 kg
Weight (with
packaging) 8.5 kg
Temperature:
Operating 0° to 40°
Non-Operating -20°to 60°
Humidity:
Operating 10% to 85% (non-condensing)
Non-Operating 5% to 80% (non-condensing)
Altitude:
Operating 0~ 3000m (0~ 10000 ft )
Environmental
Non-Operating 0~ 5000m (0~ 15000 ft )

22" LCD Color Monitor AOC 2219P2
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2. LCD Monitor Description
The LCD monitor will contain a main board, an audio board, a power board and a key board which house the flat
panel control logic, brightness control logic and DDC.
The power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips
each voltage.
Inverter
Circuit
AC in
LVDS wire
+
5
V
D-SUB in
Key Board
B/L control
Audio
Board
Audio
C
ontrol
Audio in
+12V
S
peakers
LCD PANEL
Scalar Board
Adaptor
Circuit
+5V

22" LCD Color Monitor AOC 2219P2
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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 the front of the
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, the power indicator will light up.
3.2 Control Buttons
1 Source
2 (Auto) / Exit
3 Eco mode / -
4 Volume / +
5 Menu / Enter
6 Power Button & Indicator

22" LCD Color Monitor AOC 2219P2
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3.3 OSD Menu
OSD Function Introduction
Press the MENU-button to activate the OSD window.
Press+ or - to navigate through the functions. Once the desired function is highlighted, press the
MENU-buttonto activate it.If the function selected has a sub-menu, press s+ or - again to navigate through
the sub-menu functions.Once the desired function is highlighted, press MENU-button to activate it.
Press+ or - to change the settings of the selected function. To exit and save, select the exit function. If you
want to adjust any other function, repeat steps 2-3.
OSD Lock Function: To lock the OSD, press and hold the Menu button while the monitor is off and then
press power button to turn the monitor on. To un-lock the OSD - press and hold the Menu button while the
monitor is off and then press power button to turn the monitor on.
Eco Mode hot key : Press the Eco key continuously to select the Eco mode of brightness when there is no
OSD ( Eco mode hot key may not be available in all models).
Volume adjustment hot key : When there is no OSD , press Volume (+) to active volume adjustment bar,
press - or + to adjust volume ( Only for the models with speakers).
Source hot key : When the OSD is closed, press Auto/Source button will be Source hot key function (Only
for the models with dual or more inputs) .Press Source button continuously to select the input source
showed in the message bar , press Menu/Enter button to change to the source selected.
Auto configure hot key: When the OSD is closed, press Auto button will be auto configure hot key function.

22" LCD Color Monitor AOC 2219P2
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Function Control Illustration
Luminance Adjust Range Description
Brightness 0-100 Backlight Adjustment
Contrast 0-100 Contrast from
Digital-register.
Standard Standard Mode
Text Text Mode
Internet Internet Mode
Game Game Mode
Movie Movie Mode
Eco mode
Sports
Gamma1 Adjust to Gamma1
Gamma2 Adjust to Gamma 2Gamma
Gamma3 Adjust to Gamma 3
Off
Disable dynamic contrast
ratio
DCR
On
Enable dynamic contrast
ratio
Image Setup
Clock 0-100 Adjust picture Clock to
reduce Vertical-Line noise.
Phase 0-100
Adjust Picture Phase to
reduce Horizontal-Line
noise
H.Position 0-100 Adjust the verticalposition
of the picture.
V.Position 0-100 Adjust the horizontal
position of the picture.
Color Temp.
Warm 6500K
Recall Warm Color
Temperature from
EEPROM.
Normal 7300K Recall Normal Color

22" LCD Color Monitor AOC 2219P2
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Temperature from
EEPROM.
Cool 9300K
Recall Cool Color
Temperature from
EEPROM.
sRGB
Recall SRGB Color
Temperature from
EEPROM.
Red Red Gain from
Digital-register
Green Green Gain
Digital-register.
User
Blue Blue Gain from
Digital-register
Color Boost
Full Enhance on or off Disable or Enable Full
Enhance Mode
Nature Skin on or off Disable or Enable Nature
Skin Mode
Green Field on or off Disable or Enable Green
Field Mode
Sky-blue on or off Disable or Enable
Sky-blue Mode
AutoDetect on or off Disable or Enable
AutoDetect Mode
Demo on or off Disable or Enable Demo
Picture Boost
Frame Size 14-100 Adjust Frame Size
Brightness 0-100 Adjust Frame Brightness
Contrast 0-100 Adjust Frame Contrast
H. position 0-100 Adjust Frame horizontal
Position
V.position 0-100 Adjust Frame vertical
Position
Bright Frame on or off Disable or Enable Bright
Frame

22" LCD Color Monitor AOC 2219P2
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OSD Setup
H.Position 0-100 Adjust the verticalposition
of OSD
V.Position 0-100 Adjust the horizontal
position of OSD
Timeout 5-120 Adjust the OSD Timeout
Transparence 0-100 Adjust the transparence of
OSD
Language Select the OSD language
Extra
Auto Select to Auto Detect input
signal
Analog Select Analog Sigal
Source as Input
Input Select
Digital Select Digital Sigal Source
as Input
Auto Config yes or no Auto adjust the picture to
default
Image Ratio wide or 4:3 Select wide or 4:3 format
for display
DDC-CI yes or no Turn ON/OFF DDC-CI
Support
Information
Show the information of
the main image and
sub-image source
Reset
Reset yes or no Reset the menu to default
Exit
Exit Exit the main OSD

22" LCD Color Monitor AOC 2219P2
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4. Input/Output Specification
4.1 Input Signal Connector
Analog connectors
Pin No. Description Pin No. Description
1. Red Video 9. +5V
2. Green Video 10. Ground
3. Blue Video 11. N.C.
4. N.C. 12. DDC-Serial Data
5. Detect Cable 13. H-Sync
6. Red Ground 14. V-Sync
7. Green Ground 15. DDC-Serial Clock
8. Blue Ground
VGA connector layout
1 5
610
11 15
Pin No. Description Pin No. Description Pin
No. Description
1. TMDS Data 2- 9. TMDS Data 1- 17. TMDS Data 0-
2. TMDS Data 2+ 10. TMDS Data 1+ 18. TMDS Data 0+
3. TMDS Data 2/4 Shield 11. TMDS Data 1/3
Shield 19. TMDS Data 0/5 Shield
4. TMDS Data 4- 12. TMDS Data 3- 20. TMDS Data 5-
5. TMDS Data 4+ 13. TMDS Data 3+ 21. TMDS Data 5+
6. DDC Clock 14. +5V Power 22. RX Clock Shield
7. DDC Data 15. Ground(for+5V) 23. RX Clock+
8. NC 16. Hot Plug Detection 24. RX Clock-

22" LCD Color Monitor AOC 2219P2
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4.2 Power Supply Requirements
A/C Line voltage range : 90V ~ 240 V
A/C Line frequency range : 50 3Hz, 60 3Hz
Peak surge current : < 55Apeak 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
Safety certification : CCC,UL,TUVGS
EMC : FCC,CE
4.3 Factory Preset Display Modes
Mode Resolution Horizontal
Frequency(kHz)
Vertical
Frequency(Hz)
VGA 640×480 @60Hz 31.469 59.940
VGA 640×480 @72Hz 37.861 72.809
VGA 640×480 @75Hz 37.500 75.000
Dos-mode 720×400 @70Hz 31.469 70.087
Dos-mode 640×400 @71Hz 31.469 70.087
SVGA 800×600 @56Hz 35.156 56.250
SVGA 800×600 @60Hz 37.879 60.317
SVGA 848x480@60Hz 31.020 60.000
SVGA 800×600 @72Hz 48.077 72.188
SVGA 800×600 @75Hz 46.875 75.000
XGA 1024×768 @60Hz 48.363 60.004
XGA 1024×768 @70Hz 56.476 70.069
XGA 1024×768 @75Hz 60.023 75.029
XGA 1024×768 @75Hz 60.241 74.927
XGA 1280×768 @60Hz 47.776 59.870
XGA 1280×768 @60Hz 47.396 59.995
XGA 1280×768 @75Hz 60.289 74.893
SXGA 1280×1024 @60Hz 63.981 60.020
SXGA 1280×1024 @70Hz 74.882 69.853
SXGA 1360x768@60Hz 47.712 60.015
WSXGA 1680×1050 @60Hz 65.290 59.954
WSXGA+ 1680x1050@60Hz 65.290 59.954

22" LCD Color Monitor AOC 2219P2
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4.4 Panel Specification
4.4.1 General Features
TPM220Z1-PS3 IS A 22” WIDE TFT LIQUID CRYSTAL DISPLAY MODULE WITH 4 CCFL BACKLIGHT
UNIT AND 55PIN RSDS INTERFACE. THIS MODULE SUPPORTS 1680 X 1050 WSXGA+ MODE AND CAN
DISPLAY 16.7 M COLORS.
- Super Wide viewing angle.
- Super High contrast ratio
- Super fast response time
- High color saturation
- WSXGA+ (1680 x 1050 pixels) resolution
- RSDS (reduced swing differential signaling ) interface
- RoHS Compliance
4.4.2 Display Characteristics
4.4.3 Electrical Characteristics
(1) TFT-LCD

22" LCD Color Monitor AOC 2219P2
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(2) Backlight
4.4.4 Optical Characteristics

22" LCD Color Monitor AOC 2219P2
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5. Block Diagram
5.1 Software Flow Chat
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

22" LCD Color Monitor AOC 2219P2
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1) MCU initialize.
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 there 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
disappear.
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?

22" LCD Color Monitor AOC 2219P2
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5.2 Electrical Block Diagram
5.2.1 Main Board
Flash Memory
PM25LV010A
(U402)
Panel Interface
(CN407)
SCK
SCZ
Crystal
14.31818MHZ
(X401)
Keypad Interface
(CN403)
Scalar TSUMO5RCWHQ-LF
(Include MCU, ADC, OSD)
(U401)
D-Sub
Connector
(CN405)
EEPROM
M24C02
(U404)
H sync
V sync
RGB
SCL_VGA,
SDA_VGA
DVI
Connector
(CN406)
EEPROM
M24C02
(U405)
D-Data
D-Clock
SCL_DVI
SDA_DVI
EEPROM
AF24BC16-SI
(U403)

22" LCD Color Monitor AOC 2219P2
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5.2.2 Inverter/Power Board
DIM
EMI filter
Start Circuit: R904, R932, R933
PWM
Control IC
Transformer
AC input
12V
ON/OFF
Control
Feedback
Circuit
Transformer MOSFET
Lamp
ON/OFF
5V
Bridge
Rectifier
and Filter
Feedback
Circuit
Rectifier
diodes
CN902
Output
Circuit
PWM
Control IC
（IC801）
Over Voltage

22" LCD Color Monitor AOC 2219P2
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6. Schematic
6.1 Main Board
715G2670-1-2
GPO[0..5]
B5
5.PANEL INTERFACE
+5V
PA[2..7]
PA[8..13]
ESP
PA[14..19]
PB[0..5]
PB[6..11]
GPO[0..5]
OSP
PB[12..15]
VCC3.3D
on_PANEL
DCDC_ON
VCM_PWM
PB[18..23]
B3
3.INPUT
RIN
GIN
BIN
VSYNC
GNDR
GNDG
GNDB
DET_INPUT
HSYNC
SOG
B+
CLK-
HDCP_RST
CLK+
R+
G+
R-
B-
G-
DDCA_SDA
DDCA_SCL
DDCD_SDA
DDCD_SCL
DDC_WP
+5V
B2
2.POWER
on_BACKLIGHT
Adj_BACKLIGHT
VCC1.8
VCC3.3D
+5V
VCC3.3
VOLUME
AUDIO_MUTE
B4
4.SCALER
RIN
GIN
SOG
BIN
GNDR
GNDG
GNDB
HSYNC
VSYNC
Adj_BACKLIGHT
VCC1.8
VCC3.3
PA[2..7]
PA[8..13]
R+
R-
G-
G+
B+
B-
CLK+
CLK-
DDCD_SDA
DDCD_SCL
HDCP_RST
DDCA_SDA
DDCA_SCL
DET_INPUT
on_BACKLIGHT on_Panel
+5V
PA[14..19]
PB[0..5]
PB[6..11]
ESP
OSP
DCDC_ON
PB[12..15]
DDC_WP
VCM_PWM
PB[18..23]
GPO[0..5]
VOLUME
AUDIO_MUTE
VCC3.3
VCC1.8
VCC1.8
VCC3.3D
+5V
+5V
+5V
VCC3.3
TSUMO5RCWHQ SCHEMATIC
PA[2..7]
PA[14..19]
PB[0..5]
PB[6..11]
PB[12..15]
+5V
RSDS OUTPUTWSXGA+/ UXGA
VCC3.3D
OEM MODEL Size
Rev
Date
Sheet of
TPV MODEL
PCB NAME
 
T P V ( Top Victory Electronics Co . , Ltd. )
Key Component
     TC72MPDBW1A1DI D
2219P2 B
1.2 5Friday , January 04, 2008 715G2670-1-2 < >
1.2 TOP
PA[8..13]
PB[18..23]