On 26/07/2017 20:41, Mark Zacharias wrote:
On Wednesday, July 26, 2017 at 1:47:33 AM UTC-5, wrote:
Hi, may I ask for some advice? I have an Onkyo 5009 AV Reciever with the very common problem of overheating HDMI board. You can see it just under the grill for cooling in the case. I have an infrared heat sensitive camera and discovered there are several small ic's that get very hot very quickly- i.e. 70-80c. The ICs are very small, 10mmx10mm up to 10mmx16mm and thereabouts but there is space of about an inch above so room for a heat sink maybe? What would you chose to do? Fit heat sinks to those chips(if there are any small enough) or fit fans directly above the board? I'd really welcome your advice.

Steve

It's the larger BGA chips that suffer from the heat. Recent vintage Onkyo's are notorious for this.


As Mark says ...

Over here in the UK, Onkyo have a free repair service when this board
fails due to chips unsoldering themselves. You enter the unit's serial
number into a website, and it immediately tells you if it qualifies for
free repair. If it does, you fill in address details, and they arrange
to collect it and return it fixed, usually within a week.


Arfa