No AUDIO FIX
A couple of weeks ago I posted about the problems I was having with the 3008 receiver.
No audio - amp relays not latching and no network control and greyed out in the menu.
Troubleshooting – I troubleshot the problem extensively to find out the cause to be the HDI board, specifically the DD/DTS chip on the right hand side. This chip can be easily identified because as it is one of two BGA (Ball Grid Array) chips. This means is that the chip is soldered to the PCB from the bottom whereas traditional SMT chips have the pins exposed.
It is a known problem that this type of surface-mount packaging may have some non-compliant connections/leads. See Wiki: http://en.wikipedia.org/wiki/Ball_grid_array#Noncompliant_leads
So this is not an inherent Onkyo design flaw.
Fix: Board solder Re-Flow. Oven method. Re-flowing the board melts the solder slightly and ensures a good contact.
While this may sound technical, it’s only a 30 minute job and a very good alternative to sending your receiver in for repair if its out of warranty or you don’t want UPS/FedEx to destroy it in transit, or don’t want to be out of pocket for a long time.
All you have to do is:
1- Remove the receiver cover.
2- Remove the HDMI board.
3- Cover the HDMI board on aluminum foil with the exception of the 2 BGA chips.
4- Preheat oven to 200 degrees F.
5- Place HDMI board on cookie sheet and insert in oven.
6- Bake for 2 minutes.
7- Raise temperature to 385 degrees F.
8- Bake board for 8 minutes once 385 degrees F is reached.
9- Turn oven off, open door and DO NOT touch board.
10- Let board sit for 15 minutes.
11- Carefully remove aluminum foil and inspect board to ensure integrity.
This worked perfectly. The caps and all board materials are UL94V-0 compliant so there is no need to worry about doing this.
This is only intended as a guide for those with the skill to do this.