AOC N950Sw User manual

Service Manual AOC N950SW
1
维修手册
客户/品牌 机种名
AOC N950SW
SERVICE MANUAL

Service Manual AOC N950SW
2
变更说明
版本
发布日期
变更说明
对外机种名
对内机种名
A00 Mar-16-2011 Initial Release N950SW T8BMR9NYAGA1NNJ

Service Manual AOC N950SW
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目录
1.显示器规格 ............................................................................................................................................4
1.1 技术规格 .........................................................................................................................................4
1.2 工厂预设模式 .................................................................................................................................5
1.3 接口说明 ........................................................................................................................................5
1.4 面板特性 .........................................................................................................................................6
1.5 面板连接器 .....................................................................................................................................7
2.操作说明 ................................................................................................................................................9
2.1 连接显示器 .....................................................................................................................................9
2.2 按键功能介绍 ................................................................................................................................9
2.3 OSD 菜单调整 ..............................................................................................................................11
3.机构拆解图示 ......................................................................................................................................15
4.电气方框图 ..........................................................................................................................................17
4.1 LCD 整机方框图 .........................................................................................................................17
4.2 Panel 方框图 .................................................................................................................................17
4.3 Main 主板方框图..........................................................................................................................18
4.4 Power 电源板方框图 ....................................................................................................................18
4.5 软体流程 Software Flow Chart....................................................................................................19
5.电原理图 ..............................................................................................................................................20
5.1 主板 715G4737 .............................................................................................................................20
5.2 电源板 Power 715G4745.............................................................................................................25
5.3 按键板 key board .........................................................................................................................28
6. PCB 布局.............................................................................................................................................29
7.软体更新和 DDC 改写........................................................................................................................31
7.1 软体更新步骤 ..............................................................................................................................31
7.2 改写 DDC/EDID ..........................................................................................................................37
7.3.工厂模式调整 ...............................................................................................................................39
8.故障处理流程 ......................................................................................................................................42
8.1 主板 ...............................................................................................................................................42
8.2 电源板 ...........................................................................................................................................45
8.3 按键板 ...........................................................................................................................................47
9.料件清单 ..............................................................................................................................................48

Service Manual AOC N950SW
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1.显示器规格
1.1 技术规格
Monitor Model AOC N950SW
LCD Panel
Driving system TFT Color LCD
Active Display Area 40 cm for LCD performance, 20 cm for LCD
failures409.8H*230.4V
Pixel Pitch 0.2835 mm×0.2835mm
Input
Video R,G,B Analog Interface，75ohm,0.7V
Separate Sync. H/V TTL
H-Frequency 30kHz—81kHz
V-Frequency 56Hz--75Hz
Input Connector D-Sub 15pin
Display Colors 16.7M Colors
Dot Clock 136.75MHz
Max. Resolution 1366x768, 60 Hz
Plug & Play VESA DDC2B DDC/CI
Power Consumption
ON Mode <25W
Power Saving Mode <1W
Switch OFF <0.5W
Power Source
: 90V ~ 240 V
: 50HZ±, 60HZ±
Max supply current
Environmental Operating Temp: 0° to 40°C
Considerations Storage Temp.: -20° to 60°C
Operating Humidity : 8% to 80%
Dimensions(including stand) 456.75(W)x375.5(H)x149.8 (D)mm
Weight (N. W.): 3.50kg
Safety FCC B CE mark CCC IEC950CB etc.

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1.2 工厂预设模式
VESA MODES
Mode Resolution Total
Nominal
Clock
(MHz)
VGA
640x480@60Hz 800x525 25.175
640x480@72Hz 832x520 31.5
640x480@75Hz 840x500 31.5
SVGA
800x600@56Hz 1024x625 36
800x600@60Hz 1056x628 40
800x600@72Hz 1040x666 50
800x600@75Hz 1056x625 49.5
XGA
1024x768@60Hz 1344x806 65
1024x768@70Hz 1328x806 75
1024x768@75Hz 1312x800 78.75
1280x720@60Hz 1664x748 74.5
WXGA 1360x768@60Hz 1792x795 85.5
1366x768@60Hz 1792x798 85.5
1.3 接口说明
VGA connector
Pin
No. Description Pin No. Description
1. Red Input 9. +5VDC
2. Green Input 10. GND
3. Blue Input 11. GND
4. GND 12. SDA- DDC-Serial Data
5. Connection detect 13. H Sync
6. Red GND 14. V Sync
7. Green GND 15. SCL- DDC-Serial Clock
8. Blue GND
VGA Connector layout
1
5
6
10
11
15

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1.4面板特性

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1.5 面板连接器
CN1：LVDS 连接器

Service Manual AOC N950SW
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背光系统（2 CCFL）

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2.操作说明
2.1 连接显示器
将VGA 信号线或 DVI 信号线①连接到计算机 PC 显卡输出端 。
接好电源线②。
功能按键位于前面板下方。按电源开关即可开关显示器。通过调节这些功能键可得到您需要的画面。
2.2 按键功能介绍
Main
Menu
Item
Main
Menu
Icon
1
st
2
Sub
Menu
Item
nd
Description
Sub
Menu
Item
Adjust
Range Reset Value
Power N/A N/A Turn on/off power N/A N/A

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Menu
Sub Menu N/A
To active the OSD window or
to active the highlighted
function.
N/A N/A
Auto/Sour
ce/Exit
Exit
N/A
Return previous
menu, until
OSD off N/A
Auto
Config.
When monitor is an A-only
model and OSD is closed,
presses “Auto/Source/Exit”
button will be auto configure.
When monitor is a multi-input
and under D-SUB input,
presses “Auto/Source/Exit”
button continuously ≧2
seconds, will to do Auto
Configure.
N/A
Recall to
Pre-set
Value
Source
select
When monitor is a multi-input
model and OSD is off, presses
“Auto/Source/Exit” button will
show input select menu.
N/A D-SUB
┼
Image
Ratio N/A
Select 4:3 or wide format for
display
4:3 or
wide
Reset to
“Wide” for
wide panel;
Reset
to”4:3” for
normal
panel
─
Eco Mode N/A
Standard mode Brightness=90
Contrast=50
Text mode Brightness=20
Contrast=50 Recall to
standard
mode
Brightness=40
Contrast=50

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OSD-锁定功能：
要锁定 OSD，请在显示器关闭时按住 MENU 按钮，然后按电源按钮打开显示器。要解锁 OSD，请在显示器关闭时按住
MENU 按钮，然后按电源按钮打开显示器。
2.3 OSD 菜单调整
Main
Menu
Item
Main
Menu
Icon
1
st
2
Sub
Menu
Item
nd
Description
Sub
Menu
Item
Adjust
Range Reset Value
Luminanc
e Brightness N/A
Backlight Adjustment
Each step will increase /
decrease value by 1
0-100
Recall
Brightness
Value 90
Contrast N/A
Contrast from Digital-register.
Each step will increase /
decrease value by 1
0-100
Recall
Contrast
Value 50
Eco Mode N/A Picture Adjustment
Standard
Recall
Standard
Value
Text
Internet
Game
Movie
Sports
Gamma N/A Gamma Adjustment
Gamma1
(2.2)
Recall Gamma1
Value
Gamma2
(2.0)
Gamma3
(2.4)
DCR N/A Dynamic contrast ratio ON/OFF Recall OFF
Value
Image
Setup
Clock N/A
Adjust picture Clock to reduce
Vertical-Line noise.
Each step will
increase/decrease value by 1
0-100 Do Auto
Config.

Service Manual AOC N950SW
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Phase N/A
Adjust Picture Phase to reduce
Horizontal-Line noise.
Each step will
increase/decrease value by 1 or
2
0-100 Do Auto
Config.
Sharpness N/A
Adjust picture sharpness, Each
step will increase / decrease
value by 10
0-50
Recall
Sharpness
Value 50
H.
Position N/A
Adjust the horizontal position
of the picture. Each step will
increase / decrease value by 1
0-100 Do Auto
Config.
V. Position N/A
Adjust the vertical position of
the picture. Each step will
increase / decrease value by 2
or 3
0-100 Do Auto
Config.
Color
Setup
Color
Temp
Warm
(6500K)
Recall Warm Color
Temperature from EEPROM. N/A
The Color
Temperature
will be set to
Warm.
Normal
(7300K)
Recall Normal Color
Temperature from EEPROM. N/A
Cool
(9300K)
Recall Cool Color Temperature
from EEPROM. N/A
sRGB(fo
r the
model
with
sRGB
function)
Recall sRGB Color
Temperature from EEPROM. N/A
User Recall User Color Temperature
from EEPROM. N/A
DCB
Mode
Full
Enhance Red/Green/Blue Gain ON/OFF Recall OFF Value
Nature
Skin Red Gain from Digital-register. ON/OFF Recall OFF Value
Green
Field
Green Gain from
Digital-register. ON/OFF Recall OFF Value
Sky- blue
Blue Gain from
Digital-register. ON/OFF Recall OFF Value
Auto
Detect Auto gain for input signal ON/OFF Recall OFF Value
DCB
Demo N/A Enhance Area in half Picture ON/OFF Recall OFF Value

Service Manual AOC N950SW
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Red N/A
Red gain from Digital-register.
Each step will increase /
decrease value by 1
0-100 The User
R/G/B
value(default
is 50) will not
be modified
by reset
function in
user mode.
Green N/A Green gain from
Digital-register.
Each step will increase /
decrease value by 1
0-100
Blue N/A
Blue gain from Digital-register.
Each step will increase /
decrease value by 1
0-100
“Color Temp.” The sequence follows” Warm-Normal-Cool-sRGB-User”, and
default is Warm mode.
Picture
Boost
Bright
Frame N/A Enable/Disable Bright Frame ON/OFF Recall OFF Value
Frame
Size N/A Adjust the Size of the Frame 14-100 Recall 14 Value
Brightness N/A Brightness Adjustment for
Enhance Area 0-100 Recall 50 Value
Contrast N/A Contrast Adjustment for
Enhance Area 0-100 Recall 50 Value
H.
Position N/A Adjust the horizontal position of the Frame 0-100 Recall 0 Value
V. Position N/A Adjust the vertical position of
the Frame 0-100 Recall 0 Value
OSD
Setup
Language N/A
Set OSD display language to
English.（English is default
setting）
English
No need to
recall
language
while press
“RESET”.
If customer
have different
request,
please
refer to
customer
request
Français
Español
Portuguê
s
Deutsch
Italiano
Nederlan
ds
Svenska
Suomi
Polski
Čeština
Русский
한국어
繁體中
文

Service Manual AOC N950SW
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简体中
文
日本語
Remarks for OSD Language:
16 Languages: English, France, Spanish, Portuguese, German, Italian, Dutch,
Swedish, Finnish, Polish, Czech, Russia, Korea, TChina, SChina, Japanese.
Timeout N/A
Adjust the OSD timeout.
Each step will increase /
decrease value by 5
5-120 Recall 10
Value
H.
Position N/A Adjust the horizontal position
of the OSD. Each step will
increase / decrease value by 25
0-100 Recall 50
Value
V. Position N/A Adjust the vertical position of the OSD. Each step will
increase / decrease value by 5
0-100 Recall 0
Value
Transparen
ce N/A
Adjust the OSD transparent
each step will increase/decrease
value by 25
0-100 Recall 25
Value
Input
Select NA Select D-
SUB signal source as
input D-SUB D-SUB
Auto
Config N/A
Auto the H/V Position, Focus
and Clock of picture. YES
N/A
Do not execute Auto Config,
return to main menu NO
OFF timer N/A Select DC off time 0-24 hrs Recall 0
Value
Image
Ratio N/A
Select wide format for display wide Reset to
“Wide” for
wide panel;
Reset to “4:3”
for normal
panel
Select 4:3 format for display 4:3
DDC/CI N/A Support DDC/CI Function YES Yes
Unsupported DDC/CI Function NO
Reset N/A
Clear each old status of
Auto-configuration and set the
color temperature to Warm
YES N/A
Do not execute reset, return to
main menu. NO
Exit
Exit N/A Exit the main OSD N/A N/A

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3.机构拆解图示
拆掉螺丝 2

Service Manual AOC N950SW
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Service Manual AOC N950SW
17
4.电气方框图
4.1 LCD 整机方框图
4.2 Panel 方框图
DC-AC inverter
AC-DC(5V/16V)
Power Board
Main Board
715G4737-M01
Key board
2-FCC backlight
Panel1366*768
LVDS
AC supply
90V-264V
Monitor Block Diagram
PC- VGA
/DDC
Input signal

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4.3 Main 主板方框图
4.4 Power 电源板方框图
Fuse EMI Rectifier Smoothing
Capacitor
Transformer
T901
MOS
Q901
IC-PWM
IC901
16V
Rectifier
5V
Rectifier
16V
5V
Sense
resistor
Vcc
Rectifier
regulating
Sampling
PhotoCoupler
Vcc
Open Lamp Protection
16V DC
IC Power Supply
Converter
DC-AC
Transformer
T801 High Voltage
Output
Resonance NET
Switching MOS
Q802-AM9945
AC input
100-240V
2- CCFLPWM Control IC
Current Sampling
Power part
Inverter part
Crystal 24MHZ
(X401) Panel Interface
(CN406)
MCU RTD2270LW-CG
(U401)
D-Sub Connector
(CN101)
EEPROM
MX25L2026DM1I
(U403)
H sync
V sync
Key Board Control
(CN401/402)
Voltage converter
5V
5V 3.3V 1.8V
From PC
DDC

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4.5 软体流程 Software Flow Chart
Start
Initial_MCU
Check if DataBuffer Is blank
Check if Sum is changed ?
To Write default values
Read parameter_from Buffer
PowerHandler
Init_GlobalVariables
Initial_MCU Device
while
InputTiming
ModeHandler
MenuHandler
DebugHandler
if standby mode?
Brightness
Contrast
Language
InputType InputTimingStableCounter
OsdCounter
PowerDownCounter
LED turn-on
Show power on logo
if factory mode?
No signal message
UnsupportModeFlag
END
OSD Menu
Software Flow Chart
InputTiming
Phaes/Frequency
Image setup
Color
O
Enter factory mode OSD
Y
N
Y

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5.电原理图
5.1 主板 715G4737
04.Output
04.Output
PPWR_ON#
L/T_SCL
L/T_SDA
CMVCC
PA[0..1]
PA[4..9]
PB[0..9]
PA[0..1]
CMVCC1
XGA/SXGA
RTD2270LW-GR SCHEMATIC
LVDS OUTPUT
CMVCC1
OEM MODEL Size
Rev
Date Sheet of
TPV MODEL
PCB NAME 称爹
T P V ( Top Victory Electronics Co . , Ltd. )
Key Component
絬 隔 瓜 絪 腹
AOC 50/52 ID(1A) 1.0
AOC 50/52 ID(1A) A
3 7Wednesday, January 19, 2011 715G4737-M01 <
称爹>
01.Top
715G4737-M01-000-0040-110119-01
02.Input
DSUB_R+
DSUB_G+
DSUB_B+
DSUB_V
DSUB_R-
DSUB_G-
DSUB_B-
DET_CABLE
DSUB_H
DSUB_SOG
DDC1_SDA
DDC1_SCL
CMVCC1
EDID_CTRL
05.Power
on_BACKLIGHT
Adj_BACKLIGHT
VCC1.2
CMVCC
VCC3.3 Mute
Volume#
PANEL_ID#
CMVCC1
VCTRL
03.Scalar
DSUB_R+
DSUB_G+
DSUB_SOG
DSUB_B+
DSUB_R-
DSUB_G-
DSUB_B-
DSUB_H
DSUB_V
Adj_BACKLIGHT
VCC1.2
VCC3.3
PA[0..1]
PB[0..9]
DDC1_SDA
DDC1_SCL
DET_CABLE
on_BACKLIGHT
PPWR_ON#
PANEL_ID#
Volume#
Mute
PA[4..9]
CMVCC1
VCTRL
EDID_CTRL
L/T_SCL
L/T_SDA
VCC3.3
VCC1.2
VCC1.2
CMVCC
CMVCC
VCC3.3
PB[0..9]
PA[4..9]
CMVCC1