The datasheet provides detailed information on the electrical characteristics of Ksz80 Ob S4lv0.2, including:
[12V Main Input] ──> [RT6503A PMIC] ───x─── (AVDD 17V Rail) ──> [Panel Matrix] │ [CD8 Capacitor] <── Developed Short-to-Ground │ ───┴─── (GND)
The "Ksz80 Ob S4lv0.2" is an identifying marking on a specific T-Con board, not an off-the-shelf component. It's most likely found inside 40-inch Sony or JVC LCD TVs, dating back to around 2013. Ksz80 Ob S4lv0.2 Datasheet
The transmit and receive center taps on the PHY side must be decoupled with 0.1µF capacitors to ground.
Action: Measure the stepping voltages across the designated VCOM/Gamma test points ( VGMA1 through VGMA20 ). Voltages should form a linear monotonic staircase sequence. Action: Measure the stepping voltages across the designated
Root Cause: Drift or failure in the operational amplifier circuit.
In advanced board tracking scenarios where panels fail internally, technicians sometimes execute a signal isolation method by cutting down specific clock and gate driver tracks on the ribbon paths. However, bypass adjustments of this nature rely heavily on the secondary panel side remaining stable, making it a temporary field workaround rather than a definitive electrical fix. In advanced board tracking scenarios where panels fail
Since there is no "datasheet" in the traditional sense, you must rely on technical service manuals for the TV models that use it:
This component is not unique to a single manufacturer. Based on repair forum reports, the "KSZ80 OB S4LV0.2" T-Con board is most commonly found in LCD televisions from major brands, including:
Flexible digital I/O for 1.8V, 2.5V, or 3.3V.