SONY 505G S Service Manual
15" LCD Color Monitor AOC 519Sw
Service
Service
Service
Horizontal Frequency
30- 80 kHz
Table Of Contents
Description Page Description Page
Table Of Contents.......……..............................…........1
Revision List.…........................................……......2
1. Monitor Specification..............................………........3
2. LCD Monitor Description…………………………….......4
3. Operation Instruction…………...............……...........5
3.1. General Instructions...........................…...........5
3.2. Control Button…………….…..............……...............5
3.3 Adjusting the Picture...........................…............6
4. Input/Output Specification............……………............9
4.1. Input Signal Connector............………….................9
4.2. Factory Preset Display Modes......…..................9
5. Panel Specification.....………………..................10
5.1. General Feature…….....………………..................10
5.2. Optical Characteristics………………………………10
5.3 Electrical Characteristics…………………………11
6. Block Diagram……...................…………................12
6.1 Software Flow Chart………………………………...12
6.2.Electrical Block Diagram……………..….......14
SAFETY NOTICE
7. Schematic……………......................................16
7.1 Main Board....……….......................................16
7.2 Power Board.….……....................................21
8.PCB Layout..…….......................................23
8.1. Main Board………........................................23
8.2. Power Board….......................................25
8.3. Key Board………............….......................26
9. Maintainability……….......................................27
9.1. Equipments and Tools Requirement..............27
9.2. Trouble Shooting………..............................28
9.2.1 Main Board…………..............................28
9.2.2 Power Board………..............................31
9.2.3 Key Board…………..............................33
10 White-Balance, Luminance adjustment...34
11. Monitor Exploded View………………..…....….......35
12. BOM List………………………………..……………36
13. Different Parts List.........…….……........................45
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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15" LCD Color Monitor AOC 519Sw
Revision List
Revision Date Revision History TPV Model
A00 Oct.-27-2008 First Version Release T58ARDNCWJA2NNE
A01 Dec.-08-2008 Add New Model In Item 13 T58ARDNCWJA13NE
A02 Jan.-20-09 Add New Model In Item 13 T58ARDNCWJA4NNE
A03 Feb.-04-09 Add New Model In Item 13 T58ARDNCWJA1NNE
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15" LCD Color Monitor AOC 519Sw
1. Monitor Specification
LCD Panel
Input
Display Colors
Dot Clock
Max. Resolution
Plug & Play
EPA ENERGY STAR®
Input Connector
Input Video Signal
Maximum Screen Size
Power Source
Environmental
Considerations
Weight (N. W.)
Driving system TFT Color LCD
Size 381mm
Pixel pitch 0.2595mm( H )x 0.2595mm( V )
Video R,G,B Analog Interface
Separate Sync. H/V TTL
H-Frequency 30kHz – 60kHz
V-Frequency 55Hz-75Hz
16.7M Colors
75MHz
1280 x 720@60HZ
VESA DDC2B
ON Mode ≤23W (For 2 CCFL)
OFF Mode ≤1 W
D-Sub 15pin
Analog:0.7Vp-p(standard),
75 OHM, Positive
Horizontal :344.3mm
Vertical :193.5mm
100-240VAC,50/60Hz
Operating Temp: 5° to 35°C
Storage Temp.: -20° to 60°C
Operating Humidity: 10% to 85%
2.7kg
TM
Dimensions
Regulatory Compliance
373(W)x 313 (H) x 190 (D)mm
FCC
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15" LCD Color Monitor AOC 519Sw
(
)
2. LCD Monitor Description
The LCD MONITOR will contain a main board, a power board, a key board and an audio board which house the flat
panel control logic, brightness control logic and DDC.
The power board will provide AC to DC voltage to drive the backlight of panel and the main board chips each
voltage.
Power Board
Include Adapter and Inverter
Monitor Block Diagram
CCFL Drive.
Flat Panel and
CCFL backlight
Main Board
RS232 Connector
For white balance
adjustment in factory
mode
Audio Board
Key Board
AC-IN
100V-240V
HOST Computer
Video signal, DDC
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15" LCD Color Monitor AOC 519Sw
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 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 Auto Config / Exit 4 MENU / ENTER
2 -/ECO 5 Power Button
3 +/DCR
• Power Button /Power Indicator:
Press this button to switch ON/OFF of monitor’s power.
Green — Power On mode.
Orange — Power saving mode.
• MENU / ENTER :
Active OSD menu or function adjust confirm or Exit OSD menu when in volume OSD status.
• Contrast :
Adjust contrast or adjust function.
• Brightness :
Adjust brightness or adjust function.
• Auto Adjust button / Exit:
1. When OSD menu is in active status, this button will act as EXIT-KEY (EXIT OSD menu).
2. When OSD menu is in off status, press this button to activate the Auto Adjustment function.
The Auto Adjustment function is used to optimized the HPos, VPos, Clock and Focus.
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15" LCD Color Monitor AOC 519Sw
3.3 Adjusting The Pictures
1. Press the MENU-button to activate the OSD window.
2. Press
MENU-button to activate it. If the function selected has a sub-menu, press
sub-menu Functions. Once the desired function is highlighted, press MENU-button to activate it.
3. Press
4. To exit and save, select the exit function. If you want to adjust any other function, repeat steps 2-3.
or to navigate through the functions. Once the desired function is highlighted, press the
or again to navigate through the
or to change the settings of the selected function.
The table below describes the function of each OSD icon.
Luminance Adjust Range Description
Brightness 0-100 Backlight Adjustment
Contrast 0-100 Contrast from Digital-register.
Eco mode
Standar
d
Te xt
Internet
Game
Standard Mode
Text Mode
Internet Mode
Game Mode
Movie
Movie Mode
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15" LCD Color Monitor AOC 519Sw
Sports Mode
Sports
Gamma1 Adjust to Gamma1
Gamma
Gamma2 Adjust to Gamma 2
Gamma3 Adjust to Gamma 3
Off
DCR
On
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 horizontal position of the picture.
V.Position 0-100 Adjust the verticalposition of the picture.
Color Temp.
Warm
Normal
Cool
sRGB
6500K
7300K
9300K
Red Red Gain from Digital-register
Disable dynamic contrast ratio
Enable dynamic contrast ratio
Recall Warm Color Temperature from EEPROM.
Recall Normal Color Temperature from EEPROM.
Recall Cool Color Temperature from EEPROM.
Recall SRGB Color Temperature from EEPROM.
User
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
Green Green Gain Digital-register.
Blue Blue Gain from Digital-register
V.position 0-100 Adjust Frame vertical Position
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15" LCD Color Monitor AOC 519Sw
Bright Frame on or off Disable or Enable Bright Frame
OSD Setup
H.Position 0-100 Adjust the horizontal position of OSD
V.Position 0-100 Adjust the vertical position of OSD
Timeout 5-120 Adjust the OSD Timeout
Transparence 0-100 Adjust the transparence of OSD
Language
Extra
Input Select Analog Select Analog 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
Reset
Select the OSD language
Show the information of the main image and
sub-image source
Reset yes or no Reset the menu to default
Exit
Exit Exit the main OSD
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15" LCD Color Monitor AOC 519Sw
4. Input/Output Specification
4.1 Input Signal Connector
Pin No. Description Pin No. Description
1. Red 9. +5V
2. Green 10. Ground
3. Blue 11. RDX
4. Monitor Ground 12. Monitor Ground
5. VGA-CON 13. H-Sync
6. R-Ground 14. V-Sync
7. G-Ground 15. DDC-Serial Clock
8. B-Ground
VGA Connector layout
15
6
11 15
10
4.2 Factory Preset Display Modes
STANDARD
VGA
SVGA
RESOLUTION
720 x 400 31.47 70.0
640 × 480 31.47 60.0
640 × 480 35.00 66.6
640 × 480 37.50 75.0
640 × 480 37.861 72.8
800 × 600 35.156 56.3
800 × 600 37.879 60.0
800 × 600 48.077 72.2
800 × 600 46.875 75.0
832 x 624 49.725 75.0
HORIZONTAL
FREQUENCY
VERTICAL
FREQUENCY
1024 × 768 48.363 60.0
XGA
WXGA
1024 × 768 56.476 70.0
1024 × 768 60.02 75.0
1280 × 720 44.772 59.9
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15" LCD Color Monitor AOC 519Sw
5. Panel Specification
5.1 General Characteristics
5.2 Optical Characteristics
The optical characteristics are measured under stable conditions at 25 (Room Temperature) ℃ :
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15" LCD Color Monitor AOC 519Sw
5.3 Electrical Characteristics
TFT LCD Module
Backlight Unit
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15" LCD Color Monitor AOC 519Sw
6. Block Diagram
6. 1 Software Flow Chart
1
2
N
4
5
Y
6
Y
N
3
N
10
12
14
7
Y
9
Y
Y
N
N
13
15
17
11
8
N
Y
N
Y
16
18
N
19
Y
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15" LCD Color Monitor AOC 519Sw
1) MCU initializes.
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. Scaler 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
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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15" LCD Color Monitor AOC 519Sw
6.2 Electrical Block Diagram
6.2.1 Main Board
Crystal (24 MHz)
(X401)
LCD interface
(CN601)
MCU RTD2120L-LF
(U401)
EEPROM
M24C16
(U403)
Scalar RTD2025L
(Include ADC, OSD)
(U501)
D-Sub
Connector
(CN301)
H sync
V sync
RGB
EEPROM
AS431AN-E1 (U402)
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