I just swopped out a 7200HC DSP speaker board . Took pictures before I did a thing and cabled exactly as before . Reconnected , hit the power button , and without any signal being sent to the unit either 1 , 2 or 3 lights appear in the display briefly but the grinding howl coming from the speaker's drivers is absolutely demonic !

The only difference between the old board and the replacement ( it seems to me that this could be an older board than the original ) is that there was a piece of double-stickied insulation tape holding the rectangular larger than HDMI connector in place , and this was not present on the replacement . It didn't stop a good connection being made .

Tomorrow I intend to reconnect the ( originally ) troublesome one to see if it plays better than this one ( in case it was damaged in transit )


Any ideas ?

Mostly harmless. Comfortably numb.