PC & VIDEO INTERFACE CONTROLLER
FOR 1280 x 1024, 1024 x 768 RESOLUTIONS TFT LCD
Model: SVP-1280
Part number : 4165100-XX
INSTRUCTIONS
CONTENTS
Page:
2. Introduction, How to Proceed, Usage Note, Disclaimer
3. System design
– Diagram of a suggested system
4. Assembly notes
– Important information about system elements
6. Connection & Operation
– How to use the controller
12. Connectors, pinouts & jumpers
– Essential connection information
18. Controller dimensions
19. Application notes
20. Troubleshooting
21. Specifications
24. Warranty, Caution & Limitation of Liability, Trademarks
25. Contact details
It is essential that these instructions are read and understood before connecting or
powering up this controller.
1
Introduction
Designed for LCD monitor and other flat panel display applications the SVP-1280 controller provides an auto-input
synchronization and easy to use interface controller for:
TFT (active matrix) LCD panels of 1280x1024, 1024x768, 800x600 and 640x480 resolutions;
Computer video signals of VGA, SVGA, XGA and SXGA standard.
Video signals of NTSC, PAL and SECAM standard.
Volume control of audio (optional add-on board required)
HOW TO PROCEED
Ensure you have all parts & that they are correct, refer to:
•
Connection diagram (separate document for each panel)
•
Connector reference (in following section)
•
Assembly notes
Check controller switch & jumper settings (errors may damage the panel)
Prepare the PC
Connect the parts
Understand the operation & functions
IMPORTANT USAGE NOTE
This equipment is for use by developers and integrators, the manufacturer accepts no liability for damage or injury
caused by the use of this product. It is the responsibility of the developer, integrators or other user of this product to:
•
Ensure that all necessary and appropriate safety measures are taken.
•
Obtain suitable regulatory approvals as may be required.
•
Check power settings to all component parts before connection.
DISCLAIMER
There is no implied or expressed warranty regarding this material.
2
ASSEMBLY NOTES
This controller is designed for monitor and custom display projects using 1280 x 1024 or 1024 x 768 resolution TFT panels with
a VGA, SVGA, XGA or SXGA signal input. The following provides some guidelines for installation and preparation of a finished
display solution.
Preparation:
Before proceeding it is important to familiarize yourself with the parts making up the system and the various
connectors, mounting holes and general layout of the controller. As much as possible connectors have been labeled. Guides
to connectors and mounting holes are shown in the following relevant sections.
1.
LCD Panel:
This controller is for TFT panels with 3.3V, 5V or 12V TTL or LVDS/TMDS interface. For LVDS/TMDS a
separate add-on board is required. Due to the variation between manufacturers panels signal timing and other panel
characteristics, factory setup and confirmation should be obtained before connecting to a panel.
(NOTE: Check panel
power jumper settings before connection)
Controller:
Handle the controller with care as static charge may damage electronic components. Make sure correct
jumper and dip switches settings to match the target LCD panel.
LCD connector board:
Different makes and models of LCD panel require different panel signal connectors and different
pin assignments.
WIRING NOTE:
If panels of less than 3 x 8 bit are used, eg 3 x 6 bit, then connection of panel signal high value should
correspond to the controllers highest bit. For example for a 6 bit panel R5 (Red data bit) on the panel should connect to
R7 on the controller, in this case R1 & R0 on the controller will not be connected. Same for Green & Blue.
4.
LCD signal cables:
In order to provide a clean signal it is recommended that LCD signal cables should not longer than
33cm (13 inches). If loose wire cabling is utilised these can be made into a harness with cable ties. Care should be taken
when placing the cables to avoid signal interference. Additionally it may be necessary in some systems to add ferrite
cores to the cables to minimise signal noise.
Inverter:
This will be required for the backlight of an LCD, some LCD panels have an inverter built in. As LCD panels may
have 1 or more backlight tubes and the power requirements for different panel backlights may vary it is important to match
the inverter in order to obtain optimum performance. See Application notes for more information on connection.
Inverter Cables:
Different inverter models require different cables and different pin assignment. Make sure correct cable
pin out to match inverter. Using wrong cable pin out may damage the inverter.
Function Controls:
The following section discusses the controls required and the section on connectors provides the
detail. The controls are minimal: On/Off, Backlight Brightness (depends on inverter), OSD (5 momentary buttons) analog
VR type or (8 momentary buttons) digital type.
Function controls cable:
The cables to the function switches should be of suitable quality and length so that impedance
does not affect performance. Generally lengths up to 1 meter (3 feet) should be acceptable.
Status LED:
The pin direction of the LED should be corrected for right colour indication. Red colour stands for standby.
Green colours stands for signal on. The status LED is an optional part only, can be unconnected.
2.
3.
5.
6.
7.
8.
9.
10.
IR sensor:
It is an optional part only, can be unconnected if not using IR remote control.
11.
Audio add-on board:
With the optional audio add-on board it is possible to control volume through the OSD menu. The
audio board fits on the right hand edge of the main controller.
12.
VGA Input Cable:
As this may affect regulatory emission test results and the quality of the signal to the controller a
suitably shielded cable should be utilized.
•
•
AV cables:
Standard Composite or S-video cables can be used. Reasonable quality cable should be used to avoid image
quality degradation.
Power Input:
12V DC is required, this should be a regulated supply. The power rating is depending on the panel and
inverter used. Normally, power supply with 3.5Amp current output should enough for most of 4x CCFT panels. Although
the controller provides power regulation for the LCD power this does not relate to the power supplied to the backlight
inverter. If an unregulated power supply is provided to an inverter any fluctuations in power may affect operation,
performance and lifetime of the inverter and or backlight tubes.
Power output:
Note the controller has an overall 3Amp current limit and the current available from the auxiliary power
output will be dependent on the power input and other system requirements.
Power Safety:
Note that although only 12VDC is required as ‘power-in’ a backlight inverter for panel backlighting
produces significantly higher voltages (the inverter does not connect to the ground plane). We strongly advise appropriate
insulation for all circuitry.
EMI:
Shielding will be required for passing certain regulatory emissions tests. Also the choice of external Controller to PC
signal cable can affect the result.
Ground:
The various PCB mounting holes are connected to the ground plane.
Servicing:
The board is not user serviceable or repairable. Warranty does not cover user error in connecting up to the
controller and is invalidated by unauthorized modification or repairs.
•
•
•
•
•
4
•
Controller Mounting:
It is recommended that a clearance of at least 10mm is provided above and 5mm below the
controller when mounted. Additionally consideration should be given to:
•
Electrical insulation.
•
Grounding.
•
EMI shielding.
•
Cable management. Note: It is important to keep panel signal cables apart from the inverter & backlight cables to
prevent signal interference.
•
Heat & Ventilation: Heat generated from other sources, for example the backlight of a very high brightness panel may
generate significant heat which could adversely affect the controller.
•
Other issues that may affect safety or performance.
Touch Panels:
Support for touch panels or other low power consumption accessories is available by:
•
Connector CNA1 provides 5V & 12V DC which can be used to power such accessories subject to a maximum loading
recommended at 500mA.
PC Graphics Output:
A few guidelines:
•
Signal quality is very important, if there is noise or instability in the PC graphics output this may result in visible noise
on the display.
•
Refer to graphics modes table in specifications section for supported modes.
•
Non-interlaced & interlaced video input is acceptable.
•
•
IMPORTANT: Please read the Application Notes section for more information.
5
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
