Reply To: Super hot U5 and no leds ON on OSSC 1.6
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I also noticed that my U5 has no heatsink, and that it gets burning hot. Could it be that letting the OSSC ON during several days without heating caused some melting or short inside it ?
U5 doesn’t need a heatsink and shouldn’t get extremely hot. While it’s probably not recommended to run the OSSC for days and days and days, there should nothing get “melted” together or fail because of extreme heat produced. The A/D converter IC (U1) is the only one getting pretty hot – therefore its heatsink.
More detailed informations are needed. On U5: the big pin on one side and the middle pin on the side with the three pins are connected to ground? Is that correct??
Which regulators on the bottom side of the pcb have a short to ground (U?)? Please take a photo and mark their pins connected to ground!
Do you think that this short circuit is internal to a regulator (and that I should try to replace it), or might it be located elsewhere ?
For each regulator the input and output are each connected with a capacitor, which is connected to ground. So it could be a failed capacitor… or the regulator itself.
