Check the note: “Pin 1 location shown on component side” or “View into female connector” . If you mismatch orientation, you could reverse power polarity.
: The board handles CKV (Clock Vertical) and CPV (Clock Pulse Vertical) signals, which are vital for scanning the display's rows. Ccpd-tc425-001 Diagram
While a full internal schematic is rarely published by the manufacturer, technicians focus on specific "gate signals" and voltage test points to resolve common display issues. Failure Symptoms: Blank Screen: Often caused by missing boost voltages (VGH, VGL, AVDD). Jumping Picture/Vertical Bars: Check the note: “Pin 1 location shown on