NAD T752 - Fan noise

Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
I got one issue with my beloved T752, the fan goes on high speed and 65db at 30 cm, but only when the chassi is on or when i hold my hand over the fan it goes up to full speed again ?! Seems like the fan goes up when it doesnt get enough air, my amp is on version 1.06.. Is this a software error ? I changed the fan but that did not help, i have removed a bit from the chassi and replaced the original vent holes with alumesh, that did some impovment.
the thing is when i take the lid of, it is guiet, about 30-34db, and it doesnt get hot. is there a temp meter somewhere ? lots of questions, just hope someone can point me in the right direction before i build a new lid in total mesh :)

Best regards Marco
 
Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.