The current you read when probing the VGH, VGL, or AVDD test points.
Cut a thin strip of high-temperature kapton tape or basic adhesive tape. The strip width should measure roughly .
Power the television back on. If the left half of the display screen displays a clean, stable picture (while the other half remains white or blank), the internal short circuit resides inside the right half of the display panel glass. The FFC Pin Masking Technique
To diagnose a faulty CCPD-TC425-001 circuit board, technicians rely on a schematic voltage chart. Testing these physical points using a digital multimeter determines if the board power network is intact: Test Point Label Description Expected Voltage Range Main input voltage from the TV motherboard VDD / VAA Analog supply voltage for source drivers VGH (VON) Gate High voltage (turns TFT pixels on) VGL (VOFF) Gate Low voltage (turns TFT pixels off) VCORE Digital logic supply for the main processor Common Failure Symptoms & Diagnostic Diagram Ccpd-tc425-001 Diagram
While a full internal schematic is rarely published by the manufacturer, technicians often reference to diagnose failures. Key voltage points typically checked on this board include: VCC/VIN: Usually 12V input from the mainboard.
Ensures proper image processing, optimizing contrast and clarity to prevent issues like picture jamming or black screens. Signal Input: Receives LVDS signals from the mainboard. CCPD-TC425-001 Board Layout and Diagram Analysis Understanding the physical layout (diagram) of the CCPD-TC425-001 is the first step in troubleshooting. 1. The Input Section (From Main Board)
Step-by-step troubleshooting for this specific board can be found on The current you read when probing the VGH,
Reference voltage for the liquid crystal common electrode. AVDD: Analog supply voltage for the source drivers. Common Issues and Troubleshooting
Because the CCPD-TC425-001 may be proprietary or obsolete, finding an official diagram requires effort:
This board is found in various TV brands, including Xiaomi (Mi) (e.g., L43M5-AN), Westinghouse (STCON425G), Hitachi , TCL , AOC , and Haier . Frequency: Standard 60Hz refresh rate support. Power the television back on
The CCPD-TC425-001 is a critical specifically engineered for 43-inch LED televisions using Panda display panels . Acting as the "brain" of the display, this logic board translates low-voltage differential signaling (LVDS) from the TV's main motherboard into specific data and timing signals that drive each individual pixel on the screen. Diagram and Component Overview
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The is a critical T-CON (Timing Controller) logic board used primarily in 43-inch Panda LED/LCD television panels . As modern TV panels grow more complex, understanding the signal flow on a T-CON board is essential for professional repairs, particularly when diagnosing common display issues like black screens, horizontal lines, or picture distortion.