Is there "old" TP1/TP2 equivalent for Raspberry 3 Model B to measure voltage?
The official schematics show that:
- PP1 and PP2 are 5V input from USB
- PP35 is 5V after the polyfuse
- PP7 is 5V after the input circuit
- PP3 through PP6 are GND
They are to be found on the bottom side of the PCB near the Micro USB (power in) connector (that is on the top side of course).
Thanks to @Ghanima's great answer I made markings on those +5V points: