4 ms·
The bitunlocker TTP may apply here; spray the board with upsidedown canned air to freeze traces and see where things thaw fastest.
by nosmokewhereiam 3y ago
The bitunlocker TTP may apply here; spray the board with upsidedown canned air to freeze traces and see where things thaw fastest.
- CamperBob2 3y agoYes, or spray with alcohol and watch the evaporation. Both alcohol and freeze-spray have the drawback of condensing moisture on the board, unfortunately, which can be problematic in high-impedance circuits. Not all of those are obvious; e.g., the voltage divider in a typical switching regulator reference design that's been optimized for efficiency. A combination of moisture, flux residue, and a 1M+ resistor can do (not-so) funny things.