Yes, R2 was grounded to the ring. So I removed it, wicked off all the solder and found, that the pad of R2 is conected to the ring. There is no way how solve this I guess, look below
Its no problem to make a replacement for a fee that covers shipping parts and the time to make it,
usually cheaper than failure analysis but I try never to scrap a driver that has an error
I test all drivers here befre shipping so I have some that need fix and often points on little design errors (or fab errors because they are not within 6 mil with a layer)
I guess pin 2 is what Lexel uses on that driver? It can certainly vary. It might be best to trace the circuit back to verify it’s pin 2. (I’ve seen drivers where pin 7 is used)
Alternatively, you can scrape the solder mask off the trace by the pad and attach the wire there. The current is super low for the switch.
Dont understand TA MT03 is different from his basic 46mm SRK he used to use 2 1206 0Ohm, On my designs I traced it without 0Ohm or changing any parts location or orientation
I flipped many drivers MCU from TA designs and never ran into pin assignment problems
I would always stick to the standard firmware pinouts which is compatible between them thanks to some forum members
Some drivers need to run a trace below a resistor
Switch will be aleays pin2
2S pin7 for voltage divider
2 channel pin 5,6
Indicator LED 3
Most everybody knows they are assignable, not BLF based drivers Lexel/RMM (#2 is kind of a standard) that I know of ever used #7, and this IS Lexel’s driver thread, any way good to know it was done on the Hacklites MT09R MT03 for what ever reason?