Hi!

I have a A-156 dual quantizer where the top quantizer stops working after being switched on for a few hours when it is in the case (P6, not the best ventilation in there). The output is either 0V or +5V. Removing the module from the case, cooling it by blowing on it, it starts working almost immediately. Put it back in the case and it soon stops working.

I have tried to identify any parts that gets hot, but none of them sticks out as warmer than the rest, even the regulator is not that warm.

Any ideas on this

Best regards,

Janne