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T-Con Board Schematic Overview | PDF | Liquid Crystal Display
+12V (or +5V depending on the specific TV model chassis). Location: Right next to the input fuse (F1).
: Pre-owned scaler boards for this model can be sourced through retailers like Great Bharat Spares Visual Guides
Replace FB3. Now U5 gets 3.3V, GPIO17 goes high, U3 turns on, and the 6V rail appears. The display works.
Look for ~15V . If this is 0V or highly unstable, check for shorted MLCC (Multi-Layer Ceramic) capacitors connected to ground along that trace.
The PMIC is the heart of the T-Con board’s power delivery system. It takes the main incoming voltage supply—usually or +5V from the main board via the LVDS cable—and converts it into several highly regulated voltages required by the LCD panel:
: A circuit diagram for the Y320AN01S4LV0.3 version can be viewed or downloaded via Google Drive .
Powers the source drivers and gamma correction circuitry.
What do you get at the fuse and VGH/VGL points? What is the brand and model number of the television?
: A useful repository for manuals and schematics of older or specialized electronic equipment.