I have 4 differential signal pairs (LVDS Data lines and Clock) running between my Microcontroller and TFT. There are no test points over the lines.
Can someone tell me what is the best practice and how to measure the differential signal LVDS Lines (Measurement of Voltage levels and timings)?
Since there are no Test Points on the LVDS Lines, should I scratch the lines on the PCB vias and measure it on the PCB Vias?
Should I measure near the MCU or TFT?
Any resistor should I attach at the tips of the differential probe before measuring?
Apart from Voltage level measurement and timings (Setup and Hold time), are there any valid test I should do to check whether my LVDS Lines are fine?