Continuity via data wire

[jpapa]

Just bought some new pixel bullets - testing continuity because a string isn't lighting up.

I get continuity with V+ and GND, but not the data wire.

Is this normal??

 

[TerryK]

Yes. A data wire runs from the DO (Data Out) of one pixel to the DI (Data In) of the next pixel. Trying to check data line continuity from the ends of the string is not possible due to the internal circuitry of all of the pixels. This is also the case with 4 wire pixels that have a backup data line like a GS8208 pixel. One should only see continuity on the V+ and V-.