Teckton Viewell TL-32VWTS, Service Manual

Page: 3 / 45

TL-32VWTS
Service Manual
May 12, 2006 (Version 1.1)
Page 3 / 45
1. Notes For Installation
This controller is designed for RGB monitor, Video Monitor and TV using different size of TFT LCD panels.
This section provides some guidelines for assembly and preparation of a finished display solution.
Preparation : Before proceeding, it is important to familiarize yourself with the parts making up a system and the
various connectors, mounting holes, and general layout of the controller. All connectors have their own
number printed on the controller board. And their signal arrangements are shown in the following relevant
sections.
LCD Panel :
This controller has 12V or 5V or 3.3V LVDS interface logic on the board for different kind of TFT
LCD panel. Due to the different signal timing and electrical characteristics from each LCD panel
manufacturer, we need to use different Firmware, different LCD interface cable and select DC power level
for LCD panel even on the same board.
Supplied power level, 12Vdc, 3.3Vdc and 5Vdc are marked on the board.
Inverter : Each LCD panels have their own inverter to obtain optimum performance and long lifetime. Because,
Each LCD panel makers use different type of back light tubes for their all different models and inverter
drives the tubes directly.
The controller board just supplies the power for inverter logic and controls a light On/off signal and a
brightness control signal. So, it is important to use the inverter that has proper driving capacity and control
input signal. This board supports two types of inverter in terms of brightness control. One is a current
controlled and the other one is a voltage controlled brightness control. But this controller supports a voltage
controlled brightness control as a default type.
Inverter cable :
This cable supplies Inverter’s power, an on/off control signal and a brightness control signal to
the inverter.
OSD Button :
See Operational Function section.
3 Color LED :
This LED shows the state of controller.
• Green – Normal state
• Red – Stand-by mode
Power input : +12Vdc and +12Vdc(24Vdc) is required to supply enough power for the controller, inverter and
LCD panel.