T-Con Board for the OLED TVs
The T-Con Board has 2 complimentary circuits for the Main Video Processing and Multi View Processing Video Signals. As seen here there are 2 LVDS Connectors at the Top for the two Video feeds coming from the Main Board. Two FRC ICs and 2 T-Con ICs are included for processing. Two Panel output Connectors on both the Left and Right of the Board send the final video drive signals to the panel OLEDs. Two 12V Fuses are located near the top receiving the 12VDC supply voltages from the two LVDS Cables. And Three Operating Status Indicators are present at the left side of the board.
The
Main & Multi “A & B” Video Data Signals are sent to The Two Fox FRC Processors
with complex switching to the TCON IC Sections for various viewing modes. The
Normal Standard Mode is at a full 240Hz Image. The Multi Viewing Mode is at
120Hz Image for both the Main Video & the Multi Video. The 3D Mode for the
Main Video Image is at 120Hz Left & 120Hz Right. The 3D Multi Viewing Mode
is at 60Hz for the Main Video L & R images and Multi Video images. The
final result Left & Right Images are output to the panel.
The
3 Status Indicators can be observed by viewing from the left edge of the T-Con
Board without removing the Shield. The indicators are for the status of the
12VDC Regulator, 3.3V Regulator and the DC to DC Converter for Drive Signals
to the Panel. To Test the T-Con Board: Follow the check procedure.
For
further Testing Preparations or replacing the T-CON Board:
1.
Remove 4 screws shown here.
2.
Carefully Release the 4 Panel Ribbons & the Cable at the lower left and remove the T-Con Board. Note the position of all top & bottom Heat Sink Pads.
3.
Remove the Shield & note all Pad positions.
4.
Re-install T-Con Board & Cables.
Measure
& verify the 12VDC voltage on each side of both fuses, Referenced to
ground.
If missing on both sides check the 12VDC feeds from Main Board & LVDS Cables
If missing on just one side of the fuse replace the defective T-CON Board. The two fuses can also be tested without removing the shield.
If missing on both sides check the 12VDC feeds from Main Board & LVDS Cables
If missing on just one side of the fuse replace the defective T-CON Board. The two fuses can also be tested without removing the shield.
