AOC WLA190TWE User manual

19.5"LCDColorMonitor AOC WLA190TWE
1
Service
Service
Service
HorizontalFrequency
30-83kHz
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…………………………….......5
3. Operation Instructions....................................…...........6
3.1. General Instructions..........................….....................6
3.2. Control Buttons………………………….…................6
3.3 Adjusting the Picture...................................................8
4. Input/ Output Specification............……………............10
4.1. Input Signal Connector..............……….................10
4.2. Factory Preset Display Modes...........…..................10
4.3. Panel Specification......……..…………..................11
5. Block Diagram….........................................................13
5.1 Main Board……………………………………….…….13
5.2.Power Board……………………………………….......14
6. Schematic……………..............................................15
6.1. Main Board....………............................................15
6.2. Power Board……………………………………....19
6.3. Key Board………………...….……………………21
7. PCB Layout..………….............................................22
7.1. Main Board………................................................22
7.2. Power Board.…....................................................25
7.3. Key Board….........................................................28
8. Maintainability………...............................................29
8.1. Equipments and Tools Requirement.....................29
8.2. Trouble Shooting……….......................................30
9. White-Balance, Luminance Adjustment….…..…...34
10. Monitor Exploded View………….……….…........36
11. BOM List…............................................................38
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING

19.5"LCDColorMonitor AOC WLA190TWE
2
Revision List
Version Release Date Revision History TPV Model Name
A00 Nov 03, 2013 Initial release T9DMV46EEDWPNN

19.5"LCDColorMonitor AOC WLA190TWE
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 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.)

19.5"LCDColorMonitor AOC WLA190TWE
4
1. Monitor Specification
LCD Panel
Driving system 19.5” TFT Color LCD, With LED Backlight
Size 50.0cm
Pixel pitch 0.27mm( H )x0.27mm( V )
Input
Video R,G,B Analog Interface
H-Frequency 30KHz – 83KHz
V-Frequency 50-76Hz
Display Colors 16.7M Colors
Dot Clock 140MHz
Max.
Resolution 1600 x 900 @60Hz
Plug & Play VESA DDC1/2BTM
Input Connector D-Sub 15pin
Input Video Signal Analog:0.7Vp-p(standard),
75 OHM, Positive
Maximum
Screen Size Horizontal : 432mm Vertical : 239.76mm
Power Source 100-240VAC, 50/60Hz, 1.5A
Environmental
Considerations
Operating Temp: 0° to 40°C
Storage Temp.: -25° to 55°C
Operating Humidity: 10% to 85%
Weight (N. W.) 2.8 kg Unit (net)
Dimension 478mm*360mm*205mm
Power Consumption ( Maximum ) 18 Watts
Audio Output NO
Regulatory Compliance FCC, CE, cTUVus, TCO CERTIFIED,
Pixel criteria 3-3-5 (Bright dot-Dark dot-Total / bright / dark dot)

19.5"LCDColorMonitor AOC WLA190TWE
5
2. LCD Monitor Description
The LCD Monitor will contain a main board, an adapter board and a key board which house the flat panel control
logic,brightnesscontrollogicandDDC.
The power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips
each voltage.
Video signal, DDC
Power Board
Flat Panel and
LED backlight
Main Board RS232 Connector
For white balance
adjustment in
factory mode
HOST Computer
CCFL Drive
AC-IN
100V~240V
Monitor Block Diagram
Key board

19.5"LCDColorMonitor AOC WLA190TWE
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3. Operation 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 Signal 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
EXTERNAL CONTROLS
1. Auto Adjust button / Exit
2. -/ ECO
3. Image Ratio/+
4. MENU / ENTER
5. Power Button
FRONT PANEL CONTROL
/ Power Button:
Press the button to turn on or turn off the monitor.
Power Indicator:
Blue - power On mode.
Orange –Stand by mode
MENU / ENTER:
Activate OSD menu when OSD is OFF or activate/de-activate adjustment function when OSD is ON

19.5"LCDColorMonitor AOC WLA190TWE
7
- /ECO:
When OSD menu is in off status, press this key continuously to select the different ECO mode.( Eco mode hot key
may not be available in all models).
Image Ratio/+:
When OSD menu is in off status, press this key to change 4:3 or wide image ratio. (If the product screen size is
4:3 or input signal resolution is wide format, the hot key is disalbel to adjust).
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 set the HPos, VPos, Clock and Phase.
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.
NOTES
Do not install the monitor in a location near heat sources such as radiators or air dusts, or in a place subject to
direct sunlight, or excessive dust or mechanical vibration or shock.
Save the original shipping carton and packing materials, as they will come in handy if you ever have to ship your
monitor.
For maximum protection, repackage your monitor as it was originally packed at the factory.
To maintain the cleanness of your LCD display, wipe it periodically with clean and soft cloth. The screen may be
damaged by any liquid splash.
To keep the monitor looking new, periodically clean it with a soft cloth. Stubborn stains may be removed with a
cloth lightly dampened with a mild detergent solution. Never use strong solvents such as thinner, benzene, or
abrasive cleaners, since these will damage the cabinet. As a safety precaution, always unplug the monitor before
cleaning it.
Do not scratch the screen with hard things, it may cause permanent damage.
Don’t leak liquid into monitor which will result in the damage of component.

19.5"LCDColorMonitor AOC WLA190TWE
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3.3 Adjusting the Picture
HOW TO ADJUST A SETTING
1. Press the MENU-button to activate the OSD window.
2. Press - or + to navigate through the functions. Once the desired function is highlighted, press the MENU-button to
activate it. If the function selected has a sub-menu, press + or - again to navigate through the sub-menu functions.
Once the desired function is highlighted, press MENU-button to activate it.
3. Press + or - to change the settings of the selected function.
4. To exit and save, select the exit function. If you want to adjust any other function, repeat steps 2-3.
ADJUSTING THE PICTURE
The descriptions for function control
Main Menu
Item
Main Menu
Icon
Sub Menu
Item
Sub
Menu Description
Luminance
Contrast Contrast from Digital-register
Brightness Backlight Adjustment
Eco Mode
Standard Standard Mode
Text Text Mode
Internet Internet Mode
Game Game Mode
Movie Movie Mode
Sports Sports Mode
DCR
Off Disable dynamic contrast ratio
On Enable dynamic contrast ratio

1
9
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m
C
C
Pi
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9
.5" LCD
C
m
age Setup
C
olor Temp.
C
olor Boost
cture Boos
t
O
SD Setup
Extra
C
olor Mo
n
n
itor
Clock
Phase
H.Positio
n
V.Positio
n
Image Rat
i
Warm
Normal
Cool
sRGB
User
Full Enhan
c
Nature Ski
Green Fiel
Sky-blue
A
utoDete
c
Demo
Frame Siz
e
Brightnes
s
Contrast
H.Positio
n
V.Positio
n
Bright Fra
m
H.Positio
n
V.Positio
n
Timeout
Languag
e
DDC/CI
Reset
Informatio
n
n
n
i
o
User-B
User-G
User-R
c
e on or off
n on or off
d on or off
on or off
c
t on or off
on or off
e
s
n
n
m
e on or off
n
n
e
n
9
Adjust Pict
A
djust Pict
A
djust the
A
djust the
v
Wide/4:3
Recall Wa
r
Recall Nor
m
Recall Co
o
Recall SR
G
Blue Gain
f
Green Gai
n
Red Gain
f
Disable or
Disable or
Disable or
Disable or
Disable or
Disable or
A
djust Fra
m
A
djust Fra
m
A
djust Fra
m
A
djust the
A
djust the
v
Disable or
A
djust the
A
djust the
v
A
djust the
Select the
Turn ON/
O
Reset the
m
Show the i
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ure Clock to
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horizontal p
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B Color Te
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Digital-reg
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f
rom Digital-
r
Enable Full
E
Enable Nat
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Enable Gre
e
Enable Sky-
Enable Aut
o
Enable De
m
m
e Size
m
e Brightne
s
m
e Contras
t
horizontal p
o
v
ertical posi
t
Enable Brig
h
horizontal p
o
v
ertical posi
t
OSD Timeo
u
OSD langua
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FF DDC/CI
m
enu to def
a
n
formation
o
reduce Vert
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reduce Ho
r
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sition of the
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p
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egister
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m
o
s
s
o
sition of Fr
a
t
ion of Fram
e
h
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o
sition of O
S
t
ion of OSD
ut
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Suppor
t
a
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f the main i
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AOC
W
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c
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f
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rce

19.5"LCDColorMonitor AOC WLA190TWE
10
4. Input/ Output Specification
4.1 Input Signal Connector
D-Sub 15pin Connector
15
610
11 15
PIN NO. DESCRIPTION PI N NO. DESCRIPTION
1 VGA_R+ 9 +5V
2 VGA_G+ 10 Ground
3 VGA_B+ 11 GND
4 GND 12 DDC-Serial data
5 Detect Cable 13 H-Sync
6 GND-R 14 V-Sync
7 GND-G 15 DDC-Serial clock
8 GND-B
4.2 Factory Preset Display Modes
STANDARD RESOLUTION HORIZONTAL VERTICAL
FREQUENCY(KHz) FREQUENCY(Hz)
VGA
640×480 @60Hz 31.469 59.940
640×480 @67Hz 35 66.667
640×480 @72Hz 37.861 72.809
MAC-VGA 640×480 @75Hz 37.5 75
832×624 @75Hz 49.7 75
Dos-mode 720×400 @70Hz 31.469 70.087
SVGA
800×600 @56Hz 35.156 56.250
800×600 @60Hz 37.879 60.317
800×600 @72Hz 48.077 72.188
800×600 @75Hz 46.875 75.000
XGA
1024×768 @60Hz 48.363 60.004
1024×768 @70Hz 56.476 70.069
1024×768 @72Hz 57.5 72.074
1024×768 @75Hz 60.023 75.029
SXGA 1280×1024@60Hz 67.891 60.02
1280×1024@75Hz 79.976 75.025
WXGA 1600x900 @60Hz 60 60

19.5"LCDColorMonitor AOC WLA190TWE
11
4.3. Panel Specification
4.3.1 General Features
M195FGE-L20 is a 19.5” TFT Liquid Crystal Display module with WLED Backlight unit and 30 pins
2ch-LVDS interface. This module supports 1600 x 900 HD+ mode and can display up to 16.7M colors. The
converter module for Backlight is not built in.
4.3.2 GENERAL SPECIFICATI0NS
4.3.3 MECHANICAL SPECIFICATIONS

19.5"LCDColorMonitor AOC WLA190TWE
12
4.3.4 ELECTRICAL CHARACTERISTICS
Ta = 25 ± 2 ºC
4.3.5 BACKLIGHT UNIT
Ta = 25 ± 2 ºC

19.5"LCDColorMonitor AOC WLA190TWE
13
5. Block Diagram
5.1 Main board
Scalar IC NT68169UFG
(Include MCU, ADC, OSD)
(U401)
D-SUB
Connector
(
CN101
)
Flash
MX25L4006EM1I-12G
(U402)
D-HS
D-VS
RGB
LCD Interface
(CN401)
Key Control
interface
(C
)
Crystal
12MHz
(X401)
EEROM
AT24C02C-SSHM-T(CU)
(
U103
)
DDCA-SDA
DDCA-SCL

19.5"LCDColorMonitor AOC WLA190TWE
14
5.2 Power board
DIM
EMI filter
Bridge
Rectifier
and Filter
Start Circuit: R922
PWM
Control IC
Transformer
Diode rectifier
& Filter
AC input
Transformer
(T901)
Inverter
Connector
ON/OFF
Feedback
Circuit
Over
Voltage
Protect
MOSFET
(Q801)
PWM
Control IC
Feedback
Circui
t
Diode rectifier
& Filter
15V
On/off
control
+5V
CN902
+5V Audio IC
(U601)

19.5"LCDColorMonitor AOC WLA190TWE
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6. Schematic
6.1 Main Board
715G6255M0C000004I
FB101
300R 0.2A
1 2
C112 NC/100N 16V C101 NC/100N 16V
2013/07/10
DDC_WP
C116
NC/100N 16V
ESD_5V
D102
NC/BAV99
3
1 2
R126 100R 1/10W 5%
SCL_VGA
D104
NC/BAV99
3
1 2
R125
NC/200R 1/10W 5%
C118
NC/100N 16V
R123
NC/200R 1/10W 5%
RED-
GREEN-
BLUE-
R124
NC/200R 1/10W 5%
D103
NC/BAV99
3
1 2
C117
NC/100N 16V
ESD_5V
RED+
SDA_VGA
R115 100OHM
R118
4.7K1/16W
R111 47 OHM 1/16W
C108
5PF 50V
C111 47N16V
GREEN+
R102 10 OHM
R119
4.7K1/16W
R112 47 OHM 1/16W
C107
5PF 50V
R122 100OHM
C102 47N16V
R109
75OHM +-5% 1/8W
C110 47N16V
R117
2.2K1/16W
R121 100OHM
R108
75OHM +-5% 1/8W
R114 100OHM
C104 47N16V
R116
2.2K1/16W C115
220N16V
C106
5PF 50V
R113 47 OHM 1/16W
R110
75OHM +-5% 1/8W
C109 47N16V
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 A
B
25Thursday , July 11, 2013
<
称爹 >
R120
22K1/16W
C105 47N16V
DDCA_SDA4
DDCA_SCL4
FB102
19R 0.5A
1 2
FB103
19R 0.5A
1 2
FB104
19R 0.5A
1 2
R/G/B gnd ぃ璶ゴヴ via 钡 connector
RIN 4
C114
22pF 50V
RED+
C103 1000pF 50V
+5V4,5
VGA5V+5V
GIN 4
BIN 4
GNDB 4
GNDG 4
DET_VGA1 4
R103 470 OHM 1/16W
ZD102 NC/RLZ5.6B
DET_VGA
D101
BAV70
3
1 2
R127
100R 1/10W 5%
BLUE+
BLUE+
R105 10 OHM
R107 10 OHM
VSI
GNDR 4
ZD103 NC/RLZ5.6B
ZD104 NC/RLZ5.6B
HSI
ZD105 NC/RLZ5.6B
ZD106 NC/RLZ5.6B
C113
22pF 50V
ZD101 NC/RLZ6V2B
VGA5V
U103
AT24C02C-SSHM-T(CU)
A0 1
A1 2
A2 3
GND 4 SDA
5SCL
6WP
7VCC
8
CN101
DB15
1
7
2
8
3
9
4
10
5
11
12
13
14
15
1716
6
GREEN+
R148 1K 1/10W
HSYNC 4
VSYNC 4
SOG 4
DDC_WP 4
For NT68169 ,VGA input ESD
回路
可
省
（
需考
量）

19.5"LCDColorMonitor AOC WLA190TWE
16
C402
100N 16V
FB401
120R 6A
1 2
PANEL_VCC
R401300 OHM 1/4W
CN401
CONN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
RXO0+PA1
RXO0-PA0
RX0C-PA6
PA5 RXO2+
RXO2-PA4
RXO1+PA3
RXO1-PA2
RXOC+PA7
RXOC-PA6
RXE0+PB3
RXE0-PB2
RXO3+PB1
RXO3-PB0
RXE2+PB7
RXE2-PB6
RXE1+PB5
RXE1-PB4
RXE3+PB9
RXE3-PB8
RX0C+PA7
C401
22uF 10V
OEM MODEL Size
Rev
Date
Sheet of
TPV MOD EL
PCB NAME
称爹
T P V ( Top Victory Electronics Co . , Ltd. )
Key Component
絬 隔 瓜 絪 腹 A
A
35Thursday , May 23, 2013
<
称爹 >
SDA_PANEL
SCL_PANEL L/T_SDA
L/T_SCL
PA7
PA5
PB5
PB3
PA2
PB6
PA4
PB8
PA3
PA1
PA[0..7]
PB7
PB[0..9]
PA6
PB0
PB2
PB[0..9]4
PB1
PA0
PB4
PB9
PA[0..7]4
R450
NC
PANEL_VCC

19.5"LCDColorMonitor AOC WLA190TWE
17
C415
22PF 50V
2013/07/10
LED_R
LED_G
ZD404
NC/M LVS0603M04
1 2
ZD405
NC/M LVS0603M04
1 2
ZD401
NC/MLVS0603M04
1 2
ZD402
NC/MLVS0603M04
1 2
ZD403
NC/MLVS0603M04
1 2
VCC3.3CN402
CONN
1
2
3
4
5
6
7
R434
3K9 +/-5% 1/16W
R433
3K9 +/-5% 1/16W
C416 NC/0.1UF 16V C419 NC/100N 16V C420 NC/100N 16V C417 NC/0.1UF 16V C418 NC/100N 16V
VCC3.3
R435
3K9 +/-5% 1/16W
POWER _KEY #
CVDD_1.2
ADC_1.2
ADC_3.3
VCC3.3
R405
470OHM +-5% 1/10W
R407
NC R408
470OHM +-5% 1/ 10W
Q402
LMBT3906LT1G
Q401
LMBT3906LT1G
R403
2.2K1/16W
R404
NC
LED_G
LED_R
R406
2.2K1/16W
+5V
LED_GRN/BLUE
+5V
LED_ORAN GE
OEM MOD EL Size
Rev
Date Sheet of
TPV MODEL
PCB N AME 称爹
T P V ( Top Victory Electronics Co . , Ltd. )
Key Component
絬 隔 瓜 絪 腹 A
C
45Thursday , July 11, 2013
<
称爹 >
LED_ORANGE
R422 10K
R416
10K
PA0
PA[0. .7] PA[0..7] 3
PA3
PA2
PA1
PB1
PB0
PA7
PA6
PA5
PA4
PB6
PB5
PB4
PB3
PB2
PB9
PB8
PB7
PB[0. .9] 3
PB[0..9]
DDCA_SDA2
DDCA_SCL2
R424 10K LED_GRN/BLUE
R418 1K
R421 1K KEY1
KEY2
Audio_VOL 5
High=Mute enable,Low=Mute disable for APA2603
DDC_WP 2
WP
R429
1M
R430 0R05 OHM
R427 0R05 OHM
Audio_Mute 5
Audio_Mute
U402
MX25L4006EM1I-12G
CS#
1
SO/SIO1
2
WP#
3
GND
4SI/SIO0 5
SCLK 6
HOLD# 7
VCC 8
DET_VGA1 2
Audio_VOL
C444
4.7UF 16V
R432NC/47 OHM 1/16W
L/T_SDA
3
L/T_SCL
3R431NC/47 OHM 1/16W
adj_BACKLIGHT 5
3
GND
KEY1
POWER KEY(100)
GND
GREEN
POWER_KEY#
AUTO(2k)/UP(100)
YELLOW
KEY2
C411
100N16V
C413
100N16V
6
LED_G
1
5
C443
4.7UF 16V
C442
4.7UF 16V
LED_R
2
4
DOWN(2K)/MENU(1K)
C412
100N16V
ADC_1.2
CVDD_1.2
on_BACKLIGHT 5
+5V
FB402
120R 6A
1 2
3.3V Power
C407
100N 16V
C403
10UF 10V
VCC3.3
5V_DET
PANEL_ENABLE 5
CN403
NC
1
2
3
4
5
6
+5V
R453
NC/10K+-5%1/16W
5V_DET
R454
NC/22K 1/16W
C437 NC
U401
NT68169U FG
RSTn/AO_STB_PWR
18
DVDD_3.3 11
MGND
13
BIN 1+
4
BIN 1-
5
SOG1I
6
GIN1+
7
GIN1-
8
RIN1+
9
RIN1-
10
PB5*/DDC_SDA*/TX
17
PB4*/DDC_SCL*/RX
16
HSYNCI1
14
VSYNC I1
15
ADC_3.3 1 ADC_1.2 2
AGND
3
AVCC_3.3 12
P34*
51 PA0*/PWMC*/DBC*/AO_OUT 19
PA1/PWMD/AO_IN 20
PB0/AD C0 29
PB1/AD C1 30
DGND
22
CVDD_3.3 23 CVDD_1.2 24
PA4#/PWMA#/D BC# 55
PA5#/DBC#/AO_OU TB 21
PC1#/ PWMB# 56
P30*/RXD*/LPD_IN0*
52 P31*/ TXD*
53
T7P 31
T7M 32
T6P 33
T6M 34
T5M 36
T5P 35
T4M 38
T4P 37
T3M 40
T3P 39
TC LK 1M 42
TCLK1P 41
T2M 44
T2P 43
T1M 46
T1P 45
T0M 48
T0P 47
DGND
49
P35*
50
PC0#/ LPD_OUT# 54
PA7#/PWMA#/D BC# 57
PA6#/PWMC# 58
PB3/AD C3/INTE1 61
PB2/AD C2/INTE0 62
PA3/PW MB 59
PA2/PW MD 60
SPI_C LK
28
SPI_SI
26
SPI_SO
27
SPI_C E
25
OSCO
63
OSCI
64
VCC3.3
R409
10K 1/16W 5%
C421
220N16V
SPI_C E
X4 0 1
12MHz
12
SPI_SI
R491 22R 1/10W 5%
SPI_SI
SPI_SO
C425
NC /5pF 50V
VCC3.3
SPI_C K
R425
10K
C410
100N16V
WP
R438 100R 1/16W 5%
SPI_SO
ADC_3.3
SPI_C E
C414
22PF 50V
KEY1
R4261K
POWER _KEY #
SPI_C K
BIN2
GNDR2
GNDG2
RIN2
HSYNC2
GNDB2
VSYNC2
GIN2
SOG2
PS_EN 5
KEY2

19.5"LCDColorMonitor AOC WLA190TWE
18
C701
10uF 16V
R726
NC
R707
100K1/16W
R708
NC
C706
220N16V
Audio_Mute 4
VCC3.3 4
+5V
PANEL_ENABLE4
U701
BL1117-33CX
VI
3VO 2
GND
1
BKLT-VBR1
BKLT-EN
CN701
CONN
1
2
3
4
5
6
PS_EN 4
VCC3.3
R720
NC
R717
NC
R798
100R 1/16W 5%
Audio_VOL
CN702
NC/CONN
1
2
3
4
5
6
7
8
9
VCC3.3
R711
NC
VCC3.3
R712
NC
R713 100R 1/16W 5%
C717
NC
Audio_Mute
R716
100R 1/16W 5%
+5V 2,3,4
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 A
Custom
55Thursday , May 23, 2013
<
称爹 >
+5V
C707
100N 16V
R710
4.7K1/16W
R704 100OHM
on_BACKLIGHT 4
adj_BACKLIGHT 4
Q702
AO3401A
R715
NC/0R05 OHM
BKLT-VBR1
BKLT-EN
1
G
2
D
AO3401L
3
S
R701
4.7K1/16W
VCC3.3
Both 223 and 252
foot-print
SOT 223
Belling as main source
SOT 252
+5V
PANEL_VCC
Q703
LMBT3904LT1G
R709
22K1/16W
R706
10K
C702
100N 16V
C703
100N 16V
+5V
VCC3.3
U702
NC/BL1117-33CY
VOUT 2 VIN
3
GND
1
R705
10K 1/16W 5%
C705
100N 16V
C704
22uF 10V
Audio_VOL 4

19.5"LCDColorMonitor AOC WLA190TWE
19
6.2 Power Board
715G5527P01004001M
R911
NC
R919
100K
C919
2.2NF
D901
FR10 7
093G 6026T52T
!
!
C902 680PF 250V
R901
1 MOHM +-5% 1/4W
R902
1 MOHM +-5% 1/4W
MNT 禯瞒 2.5mm / TV 禯瞒 3mm
BRIDGE 玡 L/N Trace 3.0mm
DIM
2A
ZD901
MTZJ T-72 18B
1 2
CN902
HARNESS 9P
1
2
3
4
5
6
7
8
9
ON/OFF
C917
100N 50V
1A
+5V
Q903
2SD1207T
+5V
R918
250R
FB901
BEAD
1 2
C904
0.22uF 305V
F902
T5AL 250V
+
C914
470uF 16V
+
C909
1000uF M 16V
R904 100 OHM 1/4W
R900
1 MOHM +-5% 1/4W
R917
1K 1/10W 1%
L905
1.1uH
+
C922
47UF 450V
CN901
SOCKET
12
3
R916
470OHM +-5% 1/10W
2A
0.9A
1.9A
C916
10N 50V
D903
SR515
100V-1
U902
EL817M(X) 1
23
4
U903
TL431G-A-TA
400V-1
+15VC900
1NF 250V
600V-1
R921
100K
R920
100K
R922
100K
200V-2
C911
2.2NF
C905
1N 50V
C910
2.2NF
+
C908
47uF/50V
F901
D906
SR560
200V-1
D902
FR107
R905 100 OHM 1/4W
R907 47 OHM 1/4W
R906 100 OHM 1/4W
R908 47 OHM 1/4W
R909 47 OHM 1/4W
+15V
ZD902
PTZ9.1B
1 2
R925
10R 1/10W 5%
R903
0.39R
+
C909A
NC
R926
1.5 OHM 1/4W
T901
POWER X'FMR
1
2
3
4
5
6
7
8
9
10
D908 NC
1 2
!
L901
30mH
1
4
2
3
!
C901
100N 50V
!
C921
3.3nF
R923
1.5K 1/8W
C906
1500PF2KV
L903
3.5uH
+ C912
680uF 25V
+ C907
68uF 450V
R927
NC
U901
LD7904JGP7
NC 1
COMP 2
GND 3
S4 DRAIN
5
VCC
6
R910
680 OHM 1/4W
R912
5.1KOHM +-5% 1/10W
R929
2.2K 1/10W
D905 NC
1 2
OE M MO D EL 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 1
Custom
Tuesday , Nov ember 20, 2012
OD M MODEL
23
C920
2.2NF
GND2
GND
GND
1
GND
2
GND
3
GND1
GND
GND
1
GND
2
GND
3
C902 C903 CHANGE Y2
R928
NC
t
NR901
NTCR
12
C903 680PF 250V
!
R914
NC
!
R913
30KOHM +-1% 1/8W
R915
30KOHM +-1% 1/8W
-+
BD901
2KBP08M-70
2
1
3
4
C915
100N 50V
HV

19.5"LCDColorMonitor AOC WLA190TWE
20
+
C801
330UF25V
R816
43K 1/8W 1%
R815
1M 1% 1/8W
C810
NC
C814
100N 50V
L801
47UH
R802
300K 1/8W
+15V
ISW 0.1~0.3V
R807
10 OHM 1/8W
R806
100 OHM 1%
100V-2
R809
200K 1/8W 1%
R801
10K 1/4W
R810
11K 1/8W 1%
0.9A
0.9A 0.9A
C803
1N 50V
FB802
BEAD
1 2
R811
9K1 1/8W 1%
CN 803
CONN
3
2
1
4 5
CN 805
NC/CONN
1
2
3
4
5
U801
OZ9998BGN
ISEN1
13
ISEN2
14
GND
15
ISEN3
16 ISEN4 1
ISET 2
OVP 3
RT 4
ENA 5
ISW 6
LDR 7
VREF 8 VIN
9
STATUS
10
SSTCMP
11
PWM
12
FB801
BEAD
1 2
Q801
EMBA2N10A
C805
2.2UF 16V
C815
1N 50V
C804
0.47UF 50V
C811
NC
C816
1000PF500V
R824 0R05 1/10W
R804
10 OHM 1/8W
C812
100PF 50V
C808
NC
R825 0R05 1/ 10W
R826 0R05 1/10W
R805
100K 1/8W
R827
JUMP
C807
0.47UF 50V
ON/OFF
DIM
+
C809A
4.7uF100V
C817
NC
FB804
BEAD
1 2
OEM MOD EL Size
Rev
Date Sheet of
TPV MOD EL
PCB NAME 称爹
T P V ( Top Victory Electronics Co . , Ltd. )
Key Component
絬 隔 瓜 絪 腹 1
Custom
Friday , December 14, 2012
ODM MODEL
33
C802
10N 50V
R820
1 OHM +-5% 1/8W
R821
1 OHM +-5% 1/8W
FB803
BEAD
1 2
R814
NC
+
C809
4.7U F 100V
R812
0.3R 1/4W
R822
1 OHM +-5% 1/8W
311GW200A06ABF
D801
SR510-22
1 2
393G0060A0300S
R819
1 OHM +-5% 1/8W
C806
220N 50V
R803
300K 1/8W
R818 10K 1/4W
R823
NC
CN 804
CONN/NC
1
2
3
4
5
6
7 8
R813
0.3R 1/4W
R817
680R
C813
680P 50V