FSC P20W-5 User manual

20"&22"LCDColorMonitor FSCP20W-5&P22W-5
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Service
Service
Service
Horizontal Frequency
28kHz – 80kHz
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
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 Adjusting the Picture...........................…............8
4.Input/Output Specification............……………............11
4.1.Input Signal Connector............………….................11
4.2.Factory Preset Display Modes.........................13
4.3.Power Supply Requirements.........................13
4.4.Panel Specification.....………………..................14
5.Block Diagram…….…...................…………................18
5.1.Software Flow Chart………………………….............18
5.2.Electrical Block Diagram…………..…..….......20
6.Schematic……………...............................….....22
6.1.Main Board.............................…................22
6.2.Power Board....……....................................30
7.PCB Layout..…………..........................................32
7.1.Main Board………........................................32
7.2.Power Board....……....................................33
7.3.Key Board……………………………………………34
8.Maintainability……….......................................35
8.1.Equipments and Tools Requirement...............35
8.2.Trouble Shooting…………..............................35
9. White-Balance, Luminance adjustment.............41
10.Exploded View.....….......….....................43
11.BOM List….....................................................45
12.Different Parts List….............................................80
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING

20"&22"LCDColorMonitor FSCP20W-5&P22W-5
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Revision List
Revision Date Revision History TPV Model Name
TARAM3DBIWM7DC
A00 Jul.-27-2008 Initial Release TARAM3DBIWM78C
TCRSM3DBIWM7DC
A01 Jul.-29-2008 Add new BOM for P22W-5 TCRSM3DBIWM75C
A02 Sep.-29-2008 Add new BOM for P22W-5 TCRGM3DBIWM8DC

20"&22"LCDColorMonitor FSCP20W-5&P22W-5
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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 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 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"&22"LCDColorMonitor FSCP20W-5&P22W-5
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1. Monitor Specifications
P20W-5:
Item Specification
System 51cm (20") color LCD
Active Area 433.44 x 270.90mm
Pixel Pitch 0.258mm (H) /0.258 mm (V)
Resolution 1680 x 1050
Display Colors 16.7M (8-bit)
Contrast 1000:1(type)
Luminance 300cd/m²(type)
Panel
Response time (type) 5ms
Analog: 0. 7Vp-p(standard), 75 OHM, Positive
Video DVI-D / HDMI with HDCP
H-Frequency 28kHz (15kHz interlaced modes) to 80kHz
Input
V-Frequency 50 Hz to 75 Hz
Monitor: 475.4mm x 359.5mm x 226.0 (incl. Stand)mm
Main Dimensions(W x H x D) Packed Monitor: 561.0mm x 265.0mm x438.0mm
Weight Monitor: 7.0 kg(incl. Stand)
Normal operation 43W
ECO operating mode 33W
Power consumption
Energy saving mode 0W in the 0W operating mode
Operating temperature: +15°C - +35°C; Operating Humidity: 20% - 85%
Storage Temperature: +5°C - +35°C; Storage Humidity: 5% - 85%
Environmental Condition
Transport Temperature: -20°C - +60°C; Storage Humidity: 15% - 98%
Safety compliance: CE (EN60950), cUL, CSA, CCC
EMC compliance: CE, FCC, C-tick, MPRII and TCO03
Environmental compliance: RoHS, EPA, Blue Angel, RESY
Ergonomics compatibility: TCO03, ISO 13406 –2
VESA DPMS compliant
DDC 2B and DDC CI compliant. Incorporated with FSC Displayview command
interface SW.
Windows XP and Windows Vista compliant
Compliant
RESY compliant components

20"&22"LCDColorMonitor FSCP20W-5&P22W-5
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P22W-5:
Item Specification
System 56cm (22") color LCD
Active Area 473.8 x 296.1mm
Pixel Pitch 0.282mm (H) /0.282 mm (V)
Resolution 1680 x 1050
Display Colors 16.7M (8-bit)
Contrast 1000:1(type)
Luminance 300cd/m²(type)
Panel
Response time (type) 5ms
Analog: 0. 7Vp-p(standard), 75 OHM, Positive
Video DVI-D / HDMI with HDCP
H-Frequency 28kHz (15kHz interlaced modes) to 80kHz
Input
V-Frequency 50 Hz to 75 Hz
Monitor: 510mm x 371mm x 226.0 (incl. Stand)mm
Main Dimensions(W x H x D) Packed Monitor: 616.0mm x 484.0mm x250.0mm
Weight Monitor: 7.4 kg(incl. Stand)
Normal operation 49W
ECO operating mode 37W
Power consumption
Energy saving mode 0W in the 0W operating mode
Operating temperature: +15°C - +35°C; Operating Humidity: 20% - 85%
Storage Temperature: +5°C - +35°C; Storage Humidity: 5% - 85%
Environmental Condition
Transport Temperature: -20°C - +60°C; Storage Humidity: 15% - 98%
Safety compliance: CE (EN60950), cUL, CSA, CCC
EMC compliance: CE, FCC, C-tick, MPRII and TCO03
Environmental compliance: RoHS, EPA, Blue Angel, RESY
Ergonomics compatibility: TCO03, ISO 13406 –2
VESA DPMS compliant
DDC 2B and DDC CI compliant. Incorporated with FSC Displayview command
interface SW.
Windows XP and Windows Vista compliant
Compliant
RESY compliant components

20"&22"LCDColorMonitor FSCP20W-5&P22W-5
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2. LCD Monitor Description
The LCD MONITOR will contain a main board, a power board, a sensor board and a key board which house the flat
panel control logic, brightness control logic and DDC.
The power board will provide the AC to DC voltage to drive backlight and the main board chips each voltage.
Video signal, DDC
Power board
Include：Inverter and Adapter
Flat Panel and
CCFL backlight
Main Board
Key board
RS232 Connector
For white balance
adjustment in factory
mode
HOST Computer
CCFL Drive.
AC-IN
100V-240V
Monitor Block Diagram

20"&22"LCDColorMonitor FSCP20W-5&P22W-5
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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 in the front 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 Controls and Buttons
External Controls:

20"&22"LCDColorMonitor FSCP20W-5&P22W-5
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3.3 Adjusting the Picture
To set the OSD menu, perform the following steps:

20"&22"LCDColorMonitor FSCP20W-5&P22W-5
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20"&22"LCDColorMonitor FSCP20W-5&P22W-5
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20"&22"LCDColorMonitor FSCP20W-5&P22W-5
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4. Input/Output Specification
4.1 Input Signal Connector
D-Sub Input
DVI Input

20"&22"LCDColorMonitor FSCP20W-5&P22W-5
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HDMI monitor connections

20"&22"LCDColorMonitor FSCP20W-5&P22W-5
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4.2 Factory Preset Display Modes
The picture position and size have been set to optimum values at the factory for the operating modes listed above.
Depending on the screen controller used, it may be necessary to adjust the display position and size. In this case,
you can change and save the settings
The following are the most frequently used of the preset operating modes:
4.3 Power Supply Requirements
A/C Line voltage range 90 VAC - 264 VAC ± 10 %
A/C Line frequency range 50 ±3Hz, 60 ±3Hz
Current 1.5 A max. at 100V; 0.5 A max. at 240V
Peak surge current < 60 A peak at 240 V AC and cold starting
Leakage current < 2.5 mA for power from Wall-outlet
Power line surge No advance effects (no loss of information or defect)
with a maximum of 1 half-wave missing per second
Power factor correction: According to EN 61000-3-2 or power consumption is
< 75W

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4.4 Panel Specification
M201EW02:
Display Characteristics
Optical Characteristics

20"&22"LCDColorMonitor FSCP20W-5&P22W-5
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Electrical characteristics
Power Specification
Signal Electrical Characteristics

20"&22"LCDColorMonitor FSCP20W-5&P22W-5
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LTM220M2-L01
LTM220M2-L01 is a color active matrix liquid crystal display (LCD) that uses amorphous silicon TFT (Thin Film
Transistor) as switching components. This model is composed of a TFT LCD panel, a driver circuit and a back light
unit. The resolution of a 20.1” is 1680 x 1050 and this model can display up to 16.7 millions colors.
General Information
Mechanical Information

20"&22"LCDColorMonitor FSCP20W-5&P22W-5
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Optical Characteristics

20"&22"LCDColorMonitor FSCP20W-5&P22W-5
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5. Block Diagram
5.1 Software Flow 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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1) MCU initialize.
2) Is the EEPROM blank?
3) Program the EEPROM by default values.
4) Get the PWM value of brightness from EEPROM.
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 EEPROM.
Turn on the LED and set it to green color.
Scalar initialize.
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"&22"LCDColorMonitor FSC P20W-5&P22W-5
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5.2 Electrical Block Diagram
5.2.1 Scalar Board Block Diagram
MCU
MTV416GMV
(U402)
Scalar MST6251DA-LF-165
(Include ADC, OSD)
(U401)
EEPROM
M24C32
(U405)
D-Sub
Connector
(CN102)
EEPROM
M24C02
(
U102
)
H sync
V sync
RGB
VGA_SDA,
VGA_SCL
MSDA
MSCL
LCD Interface
(CN401)
Key Board Control
CN403
Crystal
24MHz
(X402)
Crystal
14.318MHz
(X401)
EEPROM
M24C02
(U101)
DVI_SCL
DVI_SDA
DVI Connector
(CN101)
Digital
Video
Data
CLOCK
HDMI
Connector
(CN501)
EEPROM
M24C02
(
U503
)
HDMI_SDA,
HDMI_SCL