381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583
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Copyright
Copyright
reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or
computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical,
manual or otherwise, without the prior written permission of ViewSonic Corporation.
Disclaimer
ViewSonic makes no representations or warranties, either expressed or implied, with respect to the
contents hereof and specifically disclaims any warranty of merchantability or fitness for any particular
purpose. Further, ViewSonic reserves the right to revise this publication and to make changes from time
to time in the contents hereof without obligation of ViewSonic to notify any person of such revision or
changes.
Trademarks
Optiquest is a registered trademark of ViewSonic Corporation.
ViewSonic is a registered trademark of ViewSonic Corporation.
All other trademarks used within this document are the property of their respective owners.
2004 by ViewSonic Corporation. All rights reserved. No part of this publication may be
¤
1a
26/08/04
Revision History
Documents Number
DCN Number ECR Number
4644
Description of Changes EditorRevision SM Editing Date
Initial Release
A. Lu
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TABLE OF CONTENTS
1. Precautions and Safety Notices
2. Specification
3. Front Panel Function Control Description
4. Circuit Description
5. Adjusting Procedure
6. Trouble Shooting Flow Chart
7. Recommended Spare Parts List
8. Exploded Diagram And Spare Parts List
9. Block Diagram
10. Schematic Diagrams
11. PCB Layout Diagrams
1
5
8
15
18
42
46
54
70
76
82
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1. Precautions and Safety Notices
1. Appropriate Operation
(1) Turn off the product before cleaning.
(2) Use only a dry soft cloth when cleaning the LCD panel surface.
(3) Use a soft cloth soaked with mild detergent to clean the display housing.
(4) Use only high quality and safety approved AC/DC power cord.
(5) Disconnect the power plug from AC outlet if the product is not used for a long period of time.
(6) If smoke, abnormal noise, or strange odor is present, immediately switch the LCD display off.
(7) Do not touch the LCD panel surface with sharp or hard objects.
(8) Do not place heavy objects on the LCD display, video cable, or power cord.
(9) Do not use abrasive cleaners, waxes or solvents for your cleaning.
(10) Do not operate the product under the following conditions:
- Extremely hot, cold or humid environment.
- Areas susceptible to excessive dust and dirt.
- Near any appliance generating a strong magnetic field.
- Place in direct sunlight.
2. Caution
No modification of any circuit should be attempted. Service work should only be performed after you are thoroughly familiar
with all of the following safety checks and servicing guidelines.
3. Safety Check
Care should be taken while servicing this LCD display. Because of the high voltage used in the inverter circuit, the voltage is
exposed in such areas as the associated transformer circuits.
4. LCD Module Handling Precautions
4.1 Handling Precautions
(1) Since front polarizer is easily damaged, pay attention not to scratch it.
(2) Be sure to turn off power supply when inserting or disconnecting from input connector.
(3) Wipe off water drop immediately. Long contact with water may cause discoloration or spots.
(4) When the panel surface is soiled, wipe it with absorbent cotton or other soft cloth.
(5) Since the panel is made of glass, it may break or crack if dropped or bumped on hard surface.
(6) Since CMOS LSI is used in this module, take care of static electricity and insure human earth when handling.
(7) Do not open nor modify the Module Assembly.
(8) Do not press the reflector sheet at the back of the module to any directions.
(9) In case if a Module has to be put back into the packing container slot after once it was taken out from the
container, do not press the center of the CCFL Reflector edge. Instead, press at the far ends of the CFL
Reflector edge softly. Otherwise the TFT Module may be damaged.
(10) At the insertion or removal of the Signal Interface Connector, be sure not to rotate nor tilt the Interface
Connector of the TFT Module.
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(11) After installation of the TFT Module into an enclosure (LCD monitor housing, for example), do not twist nor
bend the TFT Module even momentary. At designing the enclosure, it should be taken into consideration that
no bending/twisting forces are applied to the TFT Module from outside. Otherwise the TFT Module may be
damaged.
(12) Cold cathode fluorescent lamp in LCD contains a small amount of mercury. Please follow local ordinances or
regulations for disposal.
(13) Small amount of materials having no flammability grade is used in the LCD module. The LCD module should
be supplied by power complied with requirements of Limited Power Source (IEC60950 or UL1950), or be
applied exemption.
(14) The LCD module is designed so that the CFL in it is supplied by Limited Current Circuit (IEC60950 or
UL1950). Do not connect the CFL in Hazardous Voltage Circuit.
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5.2 Handling and Placing Methods
Correct Methods:
Only touch the metal frame of the LCD panel or the front
cover of the monitor. Do not touch the surface of the
polarizer.
Incorrect Methods:
Surface of the LCD panel is pressed by fingers and that
will probably cause “Mura.”
Take out the monitor with cushions
Take out the monitor by grasping the LCD panel. That
will probably cause “Mura.”
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Place the monitor on a clean and soft foam pad. Place the monitor on foreign objects. That will probably
scratch the surface of the panel or cause “Mura.”
The panel is placed facedown on the lap. That will probably
cause “Mura.”
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2. Specification
1. General Requirements
General Specifications
Test Resolution & Frequency 1280x1024 @ 60Hz
Test Image Size Full Size
Contrast and Brightness Controls
2. Signal Interface
Video Interface
Input Connector 1 (Analog 1) DB-15 (Analog)
Input Connector 2 (Analog 2) DB-15 (Analog)
Digital Input Connector DVI-I (Digital)
Default Input Connector Defaults to the first detected input
Video Cable Connector DB-15 Pin out Compliant DDC 2B
Video Signals 1. Video RGB (Analog)
Video Impedance 75 Ohms (Analog), 100 Ohms (Digital)
Exclusions Not compatible with interlaced video
source: Tiger power TOF 5001
Input Voltage Range 90 to 264 VAC
Over Current Protection 7.0 A typical at 12.0 VDC
Power Dissipation 50 Watts (typ.)
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4. Electrical Requirements
Horizontal / Vertical Frequency
Horizontal Frequency 24 – 82 KHz
Vertical Refresh Rate 50 – 85* HZ.
FOR RESOLUTION 1280 X 1024, THE
VERTICAL RFRESH RATE UP TO 75 HZ; FOR
THE REST RESOLUTIONS, THE VERTICAL
REFRESH RATE UP TO 85HZ
Maximum Pixel Clock 135 MHz
Primary Presets 1280x1024 @ 60Hz
Look up table timing
<<Analog>>
640 x 350 @ 70Hz, 31.5kHz
640 x 400 @ 60Hz, 31.5kHz
640 x 400 @ 70Hz, 31.5kHz
640 x 480 @ 50Hz, 24.7kHz
640 x 480 @ 60Hz, 31.5kHz
640 x 480 @ 67Hz, 35.0kHz
640 x 480 @ 72Hz, 37.9kHz
640 x 480 @ 75Hz, 37.5kHz
640 x 480 @ 85Hz, 43.27kHz
720 x 400 @ 70Hz, 31.5kHz
800 x 600 @ 56Hz, 35.1kHz
800 x 600 @ 60Hz, 37.9kHz
800 x 600 @ 75Hz, 46.9kHz
800 x 600 @ 72Hz, 48.1kHz
800 x 600 @ 85Hz, 53.7kHz
832 x 624 @ 75Hz, 49.7kHz
1024 x 768 @ 60Hz, 48.4kHz
1024 x 768 @ 70Hz, 56.5kHz
1024 x 768 @ 72Hz, 58.1kHz
1024 x 768 @ 75Hz, 60.0kHz
1024 x 768 @ 85Hz, 68.67kHz
1152 x 864 @ 75Hz, 67.5kHz
1152 x 870 @ 75Hz, 68.7kHz
1280 x 1024 @ 60Hz, 63.4kHz
1280 x 1024 @ 75Hz, 79.97kHz
1280x 720 @ 60Hz, 45kHz (HDTV)
Changing Modes
zMaximum Mode Change Blank Time for
image stability : 3 seconds (Max), excluding
“Auto Adjust” time
zUnder DOS mode (640 x 350, 720 x 400 &
640 x 400), it should recall factory setting
when execute “Auto Adjust” by “0-Touch™”
<<Digital>>
640 x 350 @ 70Hz, 31.5kHz
640 x 400 @ 60Hz, 31.5kHz
640 x 400 @ 70Hz, 31.5kHz
640 x 480 @ 50Hz, 24.7kHz
640 x 480 @ 60Hz, 31.5kHz
640 x 480 @ 67Hz, 35.0kHz
640 x 480 @ 72Hz, 37.9kHz
640 x 480 @ 75Hz, 37.5kHz
640 x 480 @ 85Hz, 43.27kHz
720 x 400 @ 70Hz, 31.5kHz
800 x 600 @ 56Hz, 35.1kHz
800 x 600 @ 60Hz, 37.9kHz
800 x 600 @ 75Hz, 46.9kHz
800 x 600 @ 72Hz, 48.1kHz
800 x 600 @ 85Hz, 53.7kHz
832 x 624 @ 75Hz, 49.7kHz
1024 x 768 @ 60Hz, 48.4kHz
1024 x 768 @ 70Hz, 56.5kHz
1024 x 768 @ 72Hz, 58.1kHz
1024 x 768 @ 75Hz, 60.0kHz
1024 x 768 @ 85Hz, 68.67kHz
1152 x 864 @ 75Hz, 67.5kHz
1152 x 870 @ 75Hz, 68.7kHz
1280 x 1024 @ 60Hz, 63.4kHz
1280 x 1024 @ 75Hz, 79.97kHz
1280x 720 @ 60Hz, 45kHz (HDTV)
zThe monitor needs to do “Auto Adjust” the
first time a new mode is detected (see section
“0-Touch™ Function Actions”)
zWhile running Change Mode, Auto Adjust or
Memory Recall, the image shall blank
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5. LCD Panel
Panel Characteristics
Model number AUO M190EN04
Type TN type with LVDS interface
Active Size 376.32 (H) x 301.06 (V)
Pixel Arrangement RGB Vertical Stripe
Pixel Pitch 0.294 mm
GLASS TREATMENT Anti Glare (Hard coating 2H)
# OF BACKLIGHTS 4 CCFL edge-light (2 top / 2 bottom)
BACKLIGHT LIFE 50,000 (Typ) / 40,000 Hours (Min)
Luminance (Center) – CT = 6500K
Contrast/ Brightness = Max
400 cd/m2 (Typ after 30 minute warm up)
350 cd/m2 (Min after 30 minute warm up)
Brightness Uniformity 75% (Typ) / 70% (Min) Entire Area
Contrast Ratio 450:1 (typ), 250:1 (min)
Color Depth 16 million colors (6+2 bit)
Viewing Angle (Horizontal, CR>10) Minimum: 130º (±65º)
Width 416 mm (16.4 inch)
Height 460 mm (18.1 inch)
Depth 238 mm (9.4 inch)
Monitor Weight 7.5 kg / 16.5 lbs
Ergonomics
Tilt Up
From 0º up to ≧20º+/-2º
Tilt Down From 0º down to -3º ~ -5 º
7. Environmental
Environmental Conditions
Operating Temperature 0°C to +40°C
Storage Temperature -20°C to +60°C
Operating Relative Humidity 20% to 90% RH Non-Condensing
Storage Relative Humidity 5% to 90% RH Non-Condensing
Operating Altitude 0 to +3,000 meters
Storage Altitude 0 to +12,000 meters
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3. Front Panel Function Control Description
Use the buttons on the front control panel to display and adjust the OnView®
controls which display on the screen. The OnView controls are explained at the
top of the next page.
Main Menu
with OnView controls
Front Control Panel
shown below in detail
Displays the Main Menu
or exits the control screen
and saves adjustments.
Scrolls through menu options and
adjusts the displayed control.
Also a shortcut to display the
Contrast adjustment control
screen.
Displays the control
screen for the highlighted
control.
Also toggles between two
controls on some
screens.
Also a shortcut to toggle
analog and digital connection.
Power light
Green = ON
Orange = Power
Saving
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Do the following to adjust the screen image:
To display the Main Menu, press button [1].
1
NOTE:
All OnView menus and adjustment screens disappear automatically
after about 15 seconds. This is adjustable through the OSD timeout setting in the
setup menu.
2
To select a control you want to adjust, press ▲ or ▼ to scroll up or down the
Main Menu.
3
After the control is selected, press button [2]. A control screen like the one
shown below appears.
The command line at the
bottom of the control screen
tells what to do next from this
screen. You can toggle
between control screens,
adjust the selected option, or
exit the screen.
4
To adjust the control, press the up ▲ or down ▼ buttons.
5
To save the adjustments and exit the menu, press button [1]
twice
.
The following tips may help you optimize your display:
•Adjust your computer's graphic card so that it outputs a video signal 1280 x
1024 @ 60Hz to the LCD display. (Look for instructions on "changing the
refresh rate" in your graphic card's user guide.)
•If necessary, make small adjustments using H POSITION and V POSITION
until the screen image is completely visible
. (The black border around the
edge of the screen should barely touch the illuminated "active area" of the
LCD display.)
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Main Menu Controls
Adjust the menu items shown below by using the up ▲ and down ▼ buttons.
ControlExplanation
Auto Image Adjust
sizes and centers the screen image
automatically.
Contrast
adjusts the difference between the image background
(black level) and the foreground (white level).
Brightness
Input Select
adjusts background black level of the screen image.
toggles between inputs if you have more than one
computer connected to the VP912b/VP912s.
Color Adjust
color temperatures and
provides several color adjustment modes: preset
RGB
which allows you to adjust red (R),
green (G), and blue (B) separately. The factory setting for this
product is 6500K (6500 Kelvin).
9300K
— Adds blue to the screen image for cooler white (used
in most office settings with fluorescent lighting).
6500K
— Adds red to the screen image for warmer white and
richer red.
5400K
5000K
— Adds green to the screen image for a darker color.
— Adds blue and green to the screen image for a darker
color.
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ControlExplanation
User Color
and blue (B)
1
To select color (R, G or B) press button [2].
2
To adjust selected color, press ▲ or ▼.
Important
— Individual adjustments for red (R), green (G),
.
: If you select RECALL from the Main Menu when
the product is set to a Preset Timing Mode, colors return to the
6500K factory preset.
Information
displays the timing mode (video signal input)
coming from the graphics card in your computer, the LCD
model number, the serial number, and the ViewSonic website
URL. See your graphic card’s user guide for instructions on
changing the resolution and refresh rate (vertical frequency).
NOTE:
VESA 1280 x 1024 @ 60Hz (recommended) means
that the resolution is 1280 x 1024 and the refresh rate is 60
Hertz.
Manual Image Adjust Sub-menu
H. Size (Horizontal Size)
H./V. Position (Horizontal/Vertical Position)
adjusts the width of the screen image.
image left or right and up or down.
moves the screen
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ControlExplanation
Fine Tune
sharpens the focus by aligning the text and/or graphic
characters.
NOTE:
Sharpness
Try Auto Image Adjust first.
adjusts the clarity and focus of the screen image.
Setup menu displays the menu shown below:
Language
allows you to choose the language used in the menus
and control screens.
Resolution Notice
allows you to enable or disable this notice.
If you enable the Resolution Notice shown above and your
computer is set at a resolution other than 1280 x 1024, the
following screen appears.
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ControlExplanation
Input Priority
If multiple computers will be connected to the display,
this function can be used to select which computer has priority
Depending on the selected Input Priority, the display will do a one
time detection for available inputs when first powered on.
For example: If the Input Priority setting is D-SUB1=>D-SUB2=>DVI,
then the first priority will be given to D-SUB1 when the display turns
on. If there is no video signal on D-SUB1, then the next priority will be
given to D-SUB-2, etc… In the case of only one signal being present at
the three inputs, then the display will automatically detect and display
that signal.
The Input Priority setting can also be disabled. In this case, the input
will return to the last setting when the display is first turned on. The
user will need to control all the port settings manually under this
condition. Inputs can be switched quickly by pressing the "Up" arrow
button on the front panel controls.
OSD Position
allows you to move the on-screen display menus
and control screens.
OSD Timeout
sets the length of time the on-screen display
screen is displayed. For example, with a “30 second” setting, if a
control is not pushed within 30 seconds, the display screen
disappears.
OSD Background
On/Off
allows you to turn the On-Screen Display
background On or Off.
OSD Pivot
This function is used to rotate the OSD menu,
when the display is changed from Landscape to Portrait mode.
Memory Recall
returns the adjustments back to factory settings
if the display is operating in a factory Preset Timing Mode listed
in the Specifications of this manual.
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Hot Keys for Function Controls
Buttons: Functions:
[Up] or [Down] arrows To immediately activate Contrast menu. It should
[Up] + [Down] arrows Recall Contrast or Brightness while in the Contrast
[1] + [2] Toggle 720x400 and 640x400 mode when input
[1] + [Power On] with signalFactory Mode
[1] + [Up] + [Down] White Balance: shall enter Factory Mode first.
[1] + [Down] (hold for 10 seconds) Power Lock (Unlock). User won’t be able to turn off
[1] + [Up] (hold for 10 seconds) OSD Lock (Unlock). It will lock all functions.
[Up] + [Down] + [Power On] with signal
(Hold for 3 seconds. Release “Power” button first
and then “Up” & ”Down” buttons.)
[Up] + [Down] + [Power On]
Without signal
(Hold for 3 seconds. Release “Power” button first
and then “Up” & ”Down” buttons.)
be change to Brightness OSD by push button [2]
or Brightness adjustment, or recall both of Contrast
and Brightness when the OSD is not on.
720x400 or 640x400 mode.
White Balance should set the screen on the pure
black and white pattern with 1280*1024@60Hz
resolution.
the monitor.
All Mode Reset. It will erase all end users’ settings
and restore the factory defaults.
Burn in Mode. After entering Burn in Mode, press
[1] button, you can find the information about this
monitor.
Remark: All the shortcut functions are only available while OSD is off.
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4. Circuit Description
1. Power supply (DC/DC Converter)
The AP1501 is monolithic IC designed for M/B DC/DC converter, and owns the ability of driving a 3A load without
any additional transistor component.
The AP1501 operates at a switching frequency of 150KHz and thus allows smaller-sized filter components than what
would be needed with lower frequency switch regulator.
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2. Flash Memory
The Pm39LV010R is a 1 Megabit, 3.3 Volt-only Flash Memory organized as 131,072 bytes of 8 bits each.
This device is designed to use a 3.0 Volt to 3.6 Volt power supply to perform in-system programming.
The 1 Megabit memory array is divided into thirty-two uniform blocks of 4 Kbytes each for data and/or code storage.
The block architecture allows users to flexibly make chip erase or block erase operation. The block erase feature
llows a particular block to be erased and reprogrammed without affecting the data in other blocks. After the
a
device performs chip erase or block erase operation, it can be reprogrammed on a byte-by-byte basis.
3. GM5120
The gm5110/20 is a graphic processing IC for Liquid Crystal Display (LCD) monitors at XGA/SXGA resolution.
It provides all key IC functions required for the highest quality LCD monitors. On-chip functions include a
high-speed triple-ADC and PLL, Ultra-Reliable DVI
TM receiver
, a high quality zoom and shrink scaling engine,
an on-screen display (OSD) controller, digital color controls and an on-chip microcontroller (OCM). With this level
of integration, he gm5110/20 devices simplify and reduce the cost of LCD monitors while maintaining a high-degree
of flexibility and quality.
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gm5110/5120 System Design Example
4. LVDS (THC63LVDM83A)
The THC63LVDM83A transmitter converts 28 bits of CMOS/TTL data into LVDS (Low Voltage Differential
Signaling) data stream. A phase-locked transmit clock is transmitted in parallel with the data streams over a fifth
LVDS link. The HC63LVDM83A can be programmed for rising edge or falling edge clocks through a dedicated pin.
The THC63LVDF84A receiver converts the LVDS data streams back into 28 bits of CMOS/TTL data with falling
edge clock. At a transmit clock frequency of 85MHz, 24 bits of RGB data and 4 bits of LCD timing and control data
(HSYNC, VSYNC, CNTL1, CNTL2) are transmitted at a rate of 595 Mbps per LVDS data channel.
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5. Adjusting Procedure
1. Function Test
1.1 Product
- 19” LCD Monitor
1.2 Test Equipment
- Color Video Signal & Pattern (or PC with SXGA resolution)
1.3 Test Condition
Before function test and alignment, each LCD Monitor should be run-in and warmed up for at least 30
minutes with the following conditions:
(a) In room temperature,
(b) With full-white screen, RGB, and Black
(c) With cycled display modes,
640*480 (H=43.27KHz, V=85Hz)
800*600 (H=53.7KHz, V=85Hz)
1024*768 (H=68.67KHz, V=85Hz)
1280*1024 (H=79.97KHz, V=75Hz)
1.4 Test Display Modes & Pattern
1.4.1 Compatible Modes
Analog Digital
1. 640 x 350 @ 70Hz, 31.5kHz
2. 640 x 400 @ 60Hz, 31.5kHz
3. 640 x 400 @ 70Hz, 31.5kHz
4. 640 x 480 @ 50Hz, 24.7kHz
5. 640 x 480 @ 60Hz, 31.5kHz
6. 640 x 480 @ 67Hz, 35.0kHz
7. 640 x 480 @ 72Hz, 37.9kHz
8. 640 x 480 @ 75Hz, 37.5kHz
9. 640 x 480 @ 85Hz, 43.27kHz
10. 720 x 400 @ 70Hz, 31.5kHz
11. 800 x 600 @ 56Hz, 35.1kHz
12. 800 x 600 @ 60Hz, 37.9kHz
13. 800 x 600 @ 75Hz, 46.9kHz
14. 800 x 600 @ 72Hz, 48.1kHz
15. 800 x 600 @ 85Hz, 53.7kHz
640 x 350 @ 70Hz, 31.5kHz
640 x 400 @ 60Hz, 31.5kHz
640 x 400 @ 70Hz, 31.5kHz
640 x 480 @ 50Hz, 24.7kHz
640 x 480 @ 60Hz, 31.5kHz
640 x 480 @ 67Hz, 35.0kHz
640 x 480 @ 72Hz, 37.9kHz
640 x 480 @ 75Hz, 37.5kHz
640 x 480 @ 85Hz, 43.27kHz
720 x 400 @ 70Hz, 31.5kHz
800 x 600 @ 56Hz, 35.1kHz
800 x 600 @ 60Hz, 37.9kHz
800 x 600 @ 75Hz, 46.9kHz
800 x 600 @ 72Hz, 48.1kHz
800 x 600 @ 85Hz, 53.7kHz
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16. 832 x 624 @ 75Hz, 49.7kHz
17. 1024 x 768 @ 60Hz, 48.4kHz
18. 1024 x 768 @ 70Hz, 56.5kHz
19. 1024 x 768 @ 72Hz, 58.1kHz
20. 1024 x 768 @ 75Hz, 60.0kHz
21. 1024 x 768 @ 85Hz, 68.67kHz
22. 1152 x 864 @ 75Hz, 67.5kHz
23. 1152 x 870 @ 75Hz, 68.7kHz
24. 1280 x 1024 @ 60Hz, 63.4kHz
25. 1280 x 1024 @ 75Hz, 79.97kHz
26. 1280x 720 @ 60Hz, 45kHz (HDTV)
832 x 624 @ 75Hz, 49.7kHz
1024 x 768 @ 60Hz, 48.4kHz
1024 x 768 @ 70Hz, 56.5kHz
1024 x 768 @ 72Hz, 58.1kHz
1024 x 768 @ 75Hz, 60.0kHz
1024 x 768 @ 85Hz, 68.67kHz
1152 x 864 @ 75Hz, 67.5kHz
1152 x 870 @ 75Hz, 68.7kHz
1280 x 1024 @ 60Hz, 63.4kHz
1280 x 1024 @ 75Hz, 79.97kHz
1280x 720 @ 60Hz, 45kHz (HDTV)
1.4.2 Function Test Display Pattern
Item Test Content Pattern Specification Remark
1 Frequency & Tracking Fine Line Moire Eliminate visual wavy noise. Figure 1
2 Contrast/Brightness 16 Gray Scale 16 gray levels should be
Figure 2
distinguishable.
3 Boundary Horizontal & Vertical
Thickness
Horizontal and Vertical position of
video should be adjustable to be
Figure 3
within the screen frame.
4 RGB Color Performance RGB Color Intensities Contrast of each R, G, B, color
Figure 4, 5, 6
should be normal.
5 Screen Uniformity & Flicker Full White Should be compliant with the spec. Figure 7
6 Dead Pixel/Line White Screen & Dark
Screen
7 White Balance White & Black Pattern The screen must have the pure
The numbers of dead pixels should
be compliant with the spec.
Figure 7, 8
Figure 9
white and black pattern, no other
color.
Fine Line Morie Pattern (Figure1) Gray Scale Pattern (Figure2)
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Horizontal & Vertical Thickness Pattern (Figure 3) R. Color Pattern (Figure 4)
G. Color Pattern (Figure5) B. Color Pattern (Figure 6)
Full White Patter (Figure 7) Dark Screen Pattern (Figure 8)
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Black-White Pattern (Figure 9)
1.5 Function Test and Alignment Procedure
1.5.1 All Modes Reset
You should do “All Mode Reset” (Refer to Chapter III-3. Hot Keys for Function Controls) first. This action
will allow you to erase all end-user’s settings and restore the factory defaults.
1.5.2 Auto Image Adjust
Please select and enter “Auto Image Adjust” function on Main Menu to see if it is workable.
The "Auto Image Adjust" function is aimed to offer a better screen quality by built-in ASIC. For optimum screen quality, the user has to adjust each function manually.
1.5.3 Firmware
Test Pattern: Burn In Mode (Refer to Chapter III-3. Hot Keys for Function Controls)
- Make sure the F/W is the latest version.
1.5.4 DDC
Test Pattern: EDID program
- Make sure it can pass test program.
1.5.5 Fine Tune and Sharpness
Test Signal: 1280*1024@60Hz
Test Pattern: Line Moire Pattern
- Check and see if the image has noise and focus performs well. Eliminate visual line bar.
- If not, readjust by the following steps:
(a) Select and enter “Fine Tune” function on “Manual Image Adjust” to adjust the image to eliminate
visual wavy noise.
(b) Then, select and enter “Sharpness” function to adjust the clarity and focus of the screen image.
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1.5.6 Boundary
Test Signal: 1280*1024@60Hz
Test Pattern: Horizontal & Vertical Line Thickness Pattern
- Check and see if the image boundary is within the screen frame.
- If not, readjust by the following steps:
(a) Select and enter “Manual Image Adjust” function on OSD Main Menu.
(b) Then, select and enter “Horizontal Size” or “Horizontal/Vertical Position” function to adjust the
video boundary to be full scanned and within screen frame.
1.5.7 White Balance (Auto Gain) (Refer to Chapter III-3. Hot Keys for Function Controls)
Test Signal: 1280*1024@60Hz
Test Pattern: White and Black Pattern
1.5.8 R, G, B, Colors Contrast
Test Signal: 1280*1024@60Hz
Test Pattern: R, G, B, Color Intensities Pattern and 16 Gray Scale Pattern
- Check and see if each color is normal and distinguishable.
- If not, please return the unit to repair area.
1.5.9 Screen Uniformity and Flicker
Test Signal: 1280*1024@60Hz
Test Pattern: Full White Pattern
- Check and see if it is in normal condition.
1.5.10 Dead Pixel and Line
Test Signal: 1280*1024@60Hz
Test Pattern: Dark and White Screen Pattern
- Check and see if there are dead pixels on LCD panel with shadow gauge and filter film.
- The total numbers and distance of dead pixels should be compliant with the spec.
1.5.11 Mura
Test Pattern: White, RGB, Black, & Grey
Test Tool: 8% ND Filter
- Use 8% ND Filter to check if any Mura on the screen.
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1.5.12 Check for Secondary Display Modes
Test Signal:
Analog: 640 x 350 @ 70Hz, 31.5kHz ; 640 x 400 @ 60Hz, 31.5kHz ; 640 x 400 @ 70Hz, 31.5kHz
640 x 480 @ 50Hz, 24.7kHz ; 640 x 480 @ 60Hz, 31.5kHz ; 640 x 480 @ 67Hz, 35.0kHz
640 x 480 @ 72Hz, 37.9kHz ; 640 x 480 @ 75Hz, 37.5kHz ; 640 x 480 @ 85Hz, 43.27kHz
720 x 400 @ 70Hz, 31.5kHz ; 800 x 600 @ 56Hz, 35.1kHz ; 800 x 600 @ 60Hz, 37.9kHz
800 x 600 @ 75Hz, 46.9kHz ; 800 x 600 @ 72Hz, 48.1kHz ; 800 x 600 @ 85Hz, 53.7kHz
832 x 624 @ 75Hz, 49.7kHz ; 1024 x 768 @ 60Hz, 48.4kHz ; 1024 x 768 @ 70Hz, 56.5kHz
1024 x 768 @ 72Hz, 58.1kHz ; 1024 x 768 @ 75Hz, 60.0kHz ; 1024 x 768 @ 85Hz, 68.67kHz
1152 x 864 @ 75Hz, 67.5kHz ; 1152 x 870 @ 75Hz, 68.7kHz ; 1280 x 1024 @ 75Hz, 79.97kHz ;
1280x 720 @ 60Hz, 45kHz (HDTV)
Digital: 640 x 350 @ 70Hz, 31.5kHz ; 640 x 400 @ 60Hz, 31.5kHz ; 640 x 400 @ 70Hz, 31.5kHz
640 x 480 @ 50Hz, 24.7kHz ; 640 x 480 @ 60Hz, 31.5kHz ; 640 x 480 @ 67Hz, 35.0kHz
640 x 480 @ 72Hz, 37.9kHz ; 640 x 480 @ 75Hz, 37.5kHz ; 640 x 480 @ 85Hz, 43.27kHz
720 x 400 @ 70Hz, 31.5kHz ; 800 x 600 @ 56Hz, 35.1kHz ; 800 x 600 @ 60Hz, 37.9kHz
800 x 600 @ 75Hz, 46.9kHz ; 800 x 600 @ 72Hz, 48.1kHz ; 800 x 600 @ 85Hz, 53.7kHz
832 x 624 @ 75Hz, 49.7kHz ; 1024 x 768 @ 60Hz, 48.4kHz ; 1024 x 768 @ 70Hz, 56.5kHz
1024 x 768 @ 72Hz, 58.1kHz ; 1024 x 768 @ 75Hz, 60.0kHz ; 1024 x 768 @ 85Hz, 68.67kHz
1152 x 864 @ 75Hz, 67.5kHz ;1152 x 870 @ 75Hz, 68.7kHz ; 1280 x 1024 @ 75Hz, 79.97kHz ;
1280x 720 @ 60Hz, 45kHz (HDTV)
- Normally when the primary mode 1280*1024@60Hz is well adjusted and compliant with the specification,
the secondary display modes will be great possible to be compliant with the spec. But we still have to check
with the general test pattern to make sure every secondary is compliant with the specification.
1.5.13 All Modes Reset
After final QC step, we have to erase all saved changes again and restore the factory defaults. You should do
"All Mode Reset" again.
1.5.14 Power Off Monitor
Turn off the monitor by pressing “Power” button, and turn off the power switch on the back of the monitor.
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2. Firmware Upgrade Procedure
When you receive the returned monitor, please check whether the firmware version is the latest. If not,
please do the following procedures to upgrade it to the latest version.
2.1 Equipment Needed
- VP912 Monitor
- Fixture for Firmware Upgrade
- Power Adapter (P/N: 47.58201.001) *1 for Fixture (12 VDC)
- VGA Cable (P/N: 42.59901.003) *1(Pin 4, 11 should be connected to GND)
- PC (Personal Computer) with printer port. (OS: Window 98/ME/2000)
- Printer Cable (P/N: 42.59906.001) *1
- Firmware Upgrade Program
- One additional monitor for checking the program execution
Printer Port
PC
Fixture
VP912
Power Adapter for Fixture
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(P/N: 47.58201.001)
Printer Cable
(P/N: 42.59906.001)
24
VGA Cable
(P/N: 42.59901.003)
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2.2 Setup Procedure
1. Connect P2 of Fixture with printer port of PC by Printer Cable.
2. Connect P1 of Fixture with VP912 Monitor by VGA Cable.
3. Plug Power Adapter to Fixture.
4. Connect Power Cord to VP912 Monitor, and turn on the Power Switch.
5. Connect PC to the additional monitor.
JP1: to Power Adapter
P2: to Printer Cable
P1: to VGA Cable
Switch on Power Switch
Connect to VGA Cable
Connect to Power Cord
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6. Install GProbe Program by selecting and clicking Gprobe icon. Press “Yes” or “Next” buttons until the installation is
complete.
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2.3 Firmware Upgrade Procedure
1. Save these three files <bdisp.txt>, <p204_205.bin> and <vp912_AU_V2_001_04611.bin> in the computer.
2. Open <bdisp.txt> file.
Key in the path where you save the driver <p204_205.bin> and firmware <vp912_AU_V2_001_040611.bin>.
5. Link test: Key in “0” and then press “Enter”. It will show “0x00=0xD2” (If the screen shows “Error
Message”, please check your Hardware set up procedure is correct or not.
6. Key in “batch c:\VP912\bdisp.txt” after “Probe :>”, and then press “Enter” key to begin programming
automatically.
The path is where you save <bdisp.txt> file
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7. The successful picture is as follows:
8. Turn off the power switch of VP912, and turn it on again. Then enter “Burn In Mode”, and Serial Number will
appear. Check if the version of BIOS is correct.
Power Switch
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Troubleshooting:
1. If the firmware upgrade fails at the last step, don’t unplug the power cord of the monitor. Just try the upgrade
procedure again.
(a) If there is error to execute the command at or before line10 in the “bdisp.txt” batch file (for instance, the
message “Error executing batch file at line 4” shows up in the Gprobe program (see the following picture)),
please try to upgrade the firmware again.
Test failed.
Test failed.
Test failed.
Test failed.
Test failed.
Test failed.
Error executing batch file at line 4.
Execution time: 5.72s
GProbe:>
(b) If there is error to execute the command at or after line11 in the “bdisp.txt” batch file, please copy the error
line of the “bdisp.txt” batch file to “Gprobe:>” in the Gprobe program, and then press “Enter.” For example,
there is “Error executing batch file at line 16” (see the following picture). Then you have to copy line 16
“FLASHWRITE C:\VP912b\VP912_AU_V2_001_040611.bin” in the “bdisp.txt” file to “Gprobe:>” in the
Gprobe program, and then press “Enter” (see the picture next page).
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Test passed.
Test passed.
Test passed.
Erasing FLASH... Done.
Writing FLASH...
Writing FLASH... FAILED.
Error executing batch file at line 16.
Execution time: 9.61s
GProbe:>
Line 16
Line 16
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Copy the error line of the
“bdisp.txt” batch file to
“Gprobe:>”
2. If the firmware upgrade still fails, reboot the PC, or simply use another PC to upgrade.
3. If the above procedures don’t work, unplug and re-plug the power cord of VP912. Then try to upgrade the
firmware again if VP912 can be powered on. If VP912 cannot be turned on, that means the flash memory of
the main board is out of work. You then have to replace the main board.
3. DDC Key In Procedure
Note:
1. Every time after replacing the main board, you have to do the DDC key in.
2. If you find the DDC does not conform to the monitor, you have to do the DDC key in.
3.1 Equipment Needed
ViewSonic Corporation Confidential
- VP912 Series Monitor
- Fixture (V3) for DDC Key in (JP3 must be closed)
- RS232 Cable (P/N: 42.55907.001) *1
- VGA Cable (P/N: 42.59901.008) *2
- DVI-DVI Cable *1
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- PC (Personal Computer)
- Power Adapter (P/N: 47.56001.402) *1 for Fixture (12 VDC)
- DDC Key In Program
- One additional monitor for checking the program execution
COM1:
to
RS232
Cable
RS-232 Cable
PC VP912
(P/N: 42.55907.001)
Barcode Reader
JP3 must be closed
V3 Fixture
DVI-DVI Cable
Power Adapter for Fixture
(P/N: 47.56001.402)
VGA Cable (P/N: 42.59901.008)
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3.2 Setup Procedure
3.2.1 Connect P2 of Fixture with VGA port of VP912 by VGA Cable.
3.2.2 Connect P3 of Fixture with DVI port of VP912 by DVI-DVI Cable.
3.2.3 Connect P1 of Fixture with COM1 of PC by RS-232 Cable.
3.2.4 Plug Power Adapter to Fixture(JP1).
3.2.5 Connect Power Cord to VP912 Monitor.
3.2.6 Connect PC to the additional monitor.
P3: to DVI-DVI Cable
P2:&P4: to VGA Cable
JP3 must be closed
JP1: to Power
Adapter
Connect to Power Cord DVI PortVGA Port
P1: to RS232 Cable
Turn on Power Switch
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3.3 DDC Key In Procedure
1. Select and execute DDC Key In program.
2. Type “W” to enter the writing mode.
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3. Key in the serial number and press “Enter”key.
Notice: The English of the serial number should be capital letters.
4. The successful picture is as follows. “The checksum values will appear after DDC is upgraded successfully in both VGA
and DFP (DVI) modes.”
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5. Press “〜” button (“Shift”+”
”) to check DDC CheckSum is correct or not.
、
6. Enter “Burn In Mode.” Turn off the power switch of the rear cover of VP912, and turn it on again. Check if the
serial number is correct.
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6. Trouble Shooting Flow Chart
This chapter provides technicians and people who have an electronic background a primary description about
maintaining the product. Moreover, you can get the appropriate operation to solve some complicated problems of
component repairing and professional problems.
1. Equipment Needed
- VP912 Monitor
- Philips Screw Driver #101 and #107
- Electronic Hex Nut M5 mm
- PC (Personal Computer) with SXGA resolution and sound card / Pattern Generator
2. Main Procedure
Note: Before troubleshooting, do “All Mode Reset” first to restore the monitor’s settings to the factory defaults.
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2.1 A. Power Circuit Troubleshooting
2.2 B. Performance Troubleshooting
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Notice:
1. Make sure VGA cable connected to PC directly, not via anything like “Data transfer” or “Distribution” ……After this
action if Ghost image disappears, go to “Yes”; else, go to “No.”
2. Check the compatibility on the computer. If it is compatibility problem, feedback the information to ViewSonic; else,
Accessories:A-PC-0106-027142.50112.001 CABLE POWER CORD 1830mm SP-023+IS14 EUR.POWER CORD1
A-PC-0106-018742.50126.001 1.8M+0.1M COLOR CS-VS08 ChinaPOWER CORD1
M-MS-0808-877336.58307.002 WARRANTY CARD S. CHINESE SECOND VERSION VIEWSONIC WARRANTY1
M-LB-0813-073736.58308.001 WARRANTY STICKER S. CHINESEWARRANTY1
M-LB-0813-073936.58309.001 SHIPPING WARRANTY STICKER S. CHINESE VIEWSONICWARRANTY1
M-MS-0808-879451.61219.001 PE BAG LDPE 820*850*0.05t VP191/191b (FOR CARTON)PE BAG1
A-AD-0114-024244.61103.002 OPEN FRAME IN:100-240V OUT:12V/4.16A "TIGER1
22
A-AD-0114-024344.61103.004 OPEN FRAME IN:100-240V OUT:12V/4.16A"LSE-1"(N1
23M-LCD-0829-016548.61202.001 TFT LCD 19" 1280*1024 AUO M190EN04 V1PANEL1
24M-MS-0808-879751.00014.002 FILAMENT TAPE 3M NO.8915 25mm*55MTAPE FOR WIRE0.003
25#N/A61.61201.002 LCD BRKT SECC 1.0t VP191/912PANEL BRACKET1
26M-MS-0808-955361.61202.001 SHIELDING BRKT-MB SECC 1.0t VP191MB BRACKET1
27M-MS-0808-955961.61203.001 SHIELDING PLATE-INV Tineplate 0.3t VP191INVERTER BRACKET1
28M-MS-0808-955251.61217.001 MYLAR PROTECT FILM 400*315 0.1tPROTECTION FILM FOR PANEL1
29#N/A52.59907.005 RUBBER PAD 15*10*1.7t mm2
30M-MS-0808-955452.61202.001 SPACER RUBBER ADHESIVE 20*10*5(h)mm VP1912
31#N/A51.61201.004 FRONT COVER PC+ABS-VS08A VP912b1
32PL-BT-0706-013451.61210.002 SELECT BUTTON PC+ABS-VS08 VP191b1
33M-MS-0808-953951.61211.001 LED LENS PMMA VP1911
34C-BC-0302-049651.61202.002 REAR COVER PC+ABS-VS08A VP191b1
35M-BK-0805-002361.00042.001 LOCK BRKT+CAP SECC 0.8t1
36B-CB-0206-015880.61102.001 PCBA CTRL BD FOR VP171CONTROL BOARD1
37#N/A00.61102.001 BARE PCB L:2 CTRL BD VP1711
38#N/A09.00000.042 DIODE LED 19-22SOVGC/TR8 "EVERLIGHT"1
39#N/A35.00016.001 LABEL BARCODE 6*38mm BLANK1
40#N/A42.61101.001 W.A. FFC 10P 26cm PCB TO CTRL VP171&VP1911
41#N/A43.58423.301 SWITCH PUSH STS-07-A DC15V 20mA "HCH"SW1, SW2, SW3, SW4, SW5.5
42M-MS-0808-879751.00014.002 FILAMENT TAPE 3M NO.8915 25mm*55M3E-04
43#N/A80.61204.001 PCBA MAIN BOARD VP912MAIN BOARD1
44#N/A00.61101.C01 BARE PCB L:4 MAIN BD FOR VP1711
45#N/A01.00036.502 RES RP 0 5% 1/16W CHIP #0603;"TA-I TECHNOLO
46#N/A01.10136.501 RES RP 100 5% 1/16W #0603
47#N/A01.10136.502 RES RP 100 5% 1/16W X4 V8V 8P SMD
48#N/A01.10216.501 RES RP 1K 1% 1/16W CHIP #0603R691
49#N/A01.10236.501 RES RP 1K 5% 1/16W x4 V8V 8P SMD "PANASRP151
50#N/A01.10236.502 RES RP 1K 5% 1/16W #0603;"TA-I TECHNOLOGY"R124, R52
51#N/A01.10336.501 RES RP 10K 5% 1/16W x4 V8V 8P SMD "PANASORP141
52#N/A01.10336.502 RES RP 10K 5% 1/16W CHIP #0603;"TA-I TECHNO
53#N/A01.10436.501 RES RP 100K 5% 1/16W CHIP #0603R91
54#N/A01.10439.501 RES RP 100K 5% 1/10W CHIP #0805R101
55#N/A01.20116.501 RES RP 200 1% 1/16W CHIP #0603R71
56#N/A01.22236.501 RES RP 2.2K 5% 1/16W CHIP #0603
57#N/A01.30116.501 RES RP 330 1% 1/16W CHIP #0603R1,R4,R83
58#N/A01.33036.502 RES RP 33 5% 1/16W CHIP #0603;"TA-I TECHNOLR112,R113,R13,R130,R131,R64,R657
59#N/A01.33236.501 RES RP 3.3K 5% 1/16W CHIP #0603;"TA-I TECHNR39,R40,R413
60#N/A01.47236.501 RES RP 4.7K 5% 1/16W CHIP #0603R108,R135,R933
61#N/A01.47239.501 RES RP 4.7K 5% 1/10W CHIP #0805R31
62#N/A01.51136.501 RES RP 510 5% 1/16W CHIP #0603;"TA-I TECHNOR106,R125,R1263
63#N/A01.56236.501 RES RP 5.6K 5% 1/16W CHIP #0603R831
64#N/A01.68036.501 RES RP 68 5% 1/16W CHIP #0603R561
65#N/A01.75016.501 RES RP 75 1% 1/16W CHIP #0603;"TA-I TECHNOLR34,R35,R37,R44,R45,R46,R47,R48,R499
66#N/A01.75139.501 RES RP 750 5% 1/10W CHIP #0805R111
67#N/A02.10075.402 CAP CE 10u 25V 20% 5*11mm 105 DEGREE C (PZ)C134,C137,C59,C634
68#N/A02.10174.404 CAP CE 100u 20% 16V 6.3*11 RADIAL 105 degre
69#N/A02.10273.404
70#N/A02.10547.102 CAP CC 100pF 5% 50V NPO #0603C108,C121,C135,C136,C157,C1586
71#N/A02.10747.101 CAP CC 0.01uF 10% 50V X7R #0603;"YCTC""TEAMC75,C76,C77,C78,C79,C806
72#N/A02.10887.101 CAP CC 0.1uF +80%-20% 50V Y5V #0603; "YCTC"
73#N/A02.12174.401 CAP CE 120µF 20% 16V LOW-ESR TYPE RC=405mAC271
74#N/A02.22274.402 CAP CE 2200u 16V 20% 12.5*25mm 105° 4KhrsC101
75#N/A02.22447.101 CAP CC 22pF 5% 50V NPO #0603; "YCTC","TEAMC162, C178,C179,C94,C955
76#N/A02.47174.404 CAP CE 470u 20% 16V 8*11.5 105 Degree RADIAC61
77#N/A02.47437.101 CAP CC 47pF 5% 50V NPO #0603C163,C164,C165,C166.4
78#N/A02.50347.101 CAP CC 5pF 5% 50V NPO X7R #0603C123,C124.2
79#N/A03.00008.401 INDCTR BEAD MLB-321611-0120P-N1 "MAG LAYERSL10,L122
80#N/A03.00072.401 EMI Bead MLB-201209-0300A-N1L11,L6,L93
45#N/A01.00036.502 RES RP 0 5% 1/16W CHIP #0603;"TA-I TECHNOLO
46#N/A01.10136.501 RES RP 100 5% 1/16W #0603
47#N/A01.10136.502 RES RP 100 5% 1/16W X4 V8V 8P SMD
48#N/A01.10216.501 RES RP 1K 1% 1/16W CHIP #0603R691
49#N/A01.10236.501 RES RP 1K 5% 1/16W x4 V8V 8P SMD "PANASRP151
50#N/A01.10236.502 RES RP 1K 5% 1/16W #0603;"TA-I TECHNOLOGY"R124, R52
51#N/A01.10336.501 RES RP 10K 5% 1/16W x4 V8V 8P SMD "PANASORP141
52#N/A01.10336.502 RES RP 10K 5% 1/16W CHIP #0603;"TA-I TECHNO
53#N/A01.10436.501 RES RP 100K 5% 1/16W CHIP #0603R91
54#N/A01.10439.501 RES RP 100K 5% 1/10W CHIP #0805R101
55#N/A01.20116.501 RES RP 200 1% 1/16W CHIP #0603R71
56#N/A01.22236.501 RES RP 2.2K 5% 1/16W CHIP #0603
57#N/A01.30116.501 RES RP 330 1% 1/16W CHIP #0603R1,R4,R83
58#N/A01.33036.502 RES RP 33 5% 1/16W CHIP #0603;"TA-I TECHNOL
59#N/A01.33236.501 RES RP 3.3K 5% 1/16W CHIP #0603;"TA-I TECHNR39,R40,R413
60#N/A01.47236.501 RES RP 4.7K 5% 1/16W CHIP #0603R108,R135,R933
61#N/A01.47239.501 RES RP 4.7K 5% 1/10W CHIP #0805R31
62#N/A01.51136.501 RES RP 510 5% 1/16W CHIP #0603;"TA-I TECHNOR106,R125,R1263
63#N/A01.56236.501 RES RP 5.6K 5% 1/16W CHIP #0603R831
64#N/A01.68036.501 RES RP 68 5% 1/16W CHIP #0603R561
65#N/A01.75016.501 RES RP 75 1% 1/16W CHIP #0603;"TA-I TECHNOL
HINGE CAP-2 PC+ABS-VS08 VP191b
HINGE CAP-2 PC+ABS-VS08 VP191s
HINGE CAP-3 PC+ABS-VS08 VP191b
HINGE CAP-3 PC+ABS-VS08 VP191s
FRONT ARM PC+ABS-VS08 VP191b
FRONT ARM PC+ABS-VS08 VP191s
REAR ARM PC+ABS-VS08 VP191b
REAR ARM PC+ABS-VS08 VP191s
SCREW FLATE MECH M3*4 BLACK
1
1
1
1
3
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ItemViewSonic P/NReference P/NDescriptionQ'ty
54M-MS-0808-955251.61217.001MYLAR PROTECT FILM 400*315 0.1t1
55PL-PD-0714-006452.00003.001RUBBER FOOT 25*10*1.2t1
56M-MS-0808-991151.61220.001PE BAG LDPE 150*65*0.04t mm VP171/191 Series1
57M-MS-0808-991252.59901.001RUBBER 35*10*4mm2
58M-MS-0808-991352.61202.003
59M-MS-0808-991452.61202.002
60P-BX-0601-108251.61218.003
61P-BX-0601-108351.61218.002
62M-LB-0830-072635.61205.001
RUBBER KIT SILICONE 20*10*7.0mm
RUBBER KIT SILICONE 20*10*3.5mm
PC 20*12*1.0t mm VP191F
PC 30*12*0.65t mm VP191F
HI-POT TEST LABLE F10mm VP191/191b
9 RXE IN 3- 24 Ground
10 RXE CLK IN+ 25 RXO IN 2+
11 RXE CLK IN- 26 RXO IN 212 RXE IN 2+ 27 RXO IN 1+
13 RXE IN 2- 28 RXO IN 114 Ground 29 RXO IN 0+
15 RXE IN 1+ 30 RXO IN 0-
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JP10(To CTRL Board)
Pin Description Pin Description
1 Ground 7 UP
2 Power 8 DOWN
3 Ground 9 NC
4 LED_R 10 Select
5 LED_G 11 Menu
6 NC 12 NC
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INVERTER 44.61801.001
CN1
Pin Description
1 +12 V DC
2 +12 V DC
3 ON/OFF control
4 Brightness control
5 Ground
6 Ground