Analysis of KSZ80 Family PHY Transceiver Date: October 26, 2023 Status: Preliminary Datasheet Reconstruction
When this board (often referred to by technicians as the "V-com" or "Logic Board") fails, you will typically see: White Screen:
Often features chips like the RT6503A or BM81204.
If all primary voltages (VGH, VGL, AVDD) verify perfectly at the test points but the display is blank, distorted, or vertically lined, internal gate shorts are present inside the physical glass LCD substrate rather than on the T-CON board itself. Ksz80 Ob S4lv0.2 Datasheet
Enable or disable Energy Efficient Ethernet (EEE).Force specific speeds or duplex modes.Monitor link status and error counters.Trigger software resets without toggling hardware pins. Typical Applications
| Brand | Compatible TV Models | | :------------ | :------------------------------------------------------------------------------------------------------------------------------------------------- | | | KDL-40R473A, KDL-40R474A, KDL-40R453B, KDL-40R483B, KDL-40R485B, KDL-40R450A, KDL-40R470A | | JVC | LT-40N530A |
This board acts as the "brain" for your display panel. It takes the video signal from the main logic board and translates it into instructions for the individual pixels on the screen. Primary Function: LED/LCD Scaler and Timing Control. Common TV Models: Analysis of KSZ80 Family PHY Transceiver Date: October
: Keep the positive and negative traces within each pair matched in length to within 10 mils (0.25 mm) to avoid phase skew.
The board features three primary IC packages that govern its signal and power routing:
The part number is consistently associated with a T-Con board under the broader commercial model LSY400HM02-A02 . This board is designed to interface with a specific 40-inch LCD panel model, the S400DH1-3 . Typical Applications | Brand | Compatible TV Models
manage the timing and driving of the pixels on the LCD glass.
Configure LEDs and interrupt status behaviors via vendor-specific registers (typically Registers 10h–15h). 4. Hardware Design and PCB Layout Guidelines