SOURCE: no surround sound
So your saying that you have no rear channel. Some recivers use a single stereo output ic for both sides on the rear speakers. you could have a defect with this IC . Anther thing Im sure you check3ed the obvious ie : the switch is on suround sound? If there is a front to rear fader is it in the middle? Good Luck
SOURCE: Channels missing on Onkyo TX-SV646
These units are quality units. The fix is not the easiest. We need to determine whether the problem is the output amp sections or the processing side. Worse case, the cost would be around $50-$75 for parts plus the local labor rate. Given your description, it will be difficult to diagnose remotely. One alternative is to get a detailed repair estimate ($50 or so) and post the results here. We can walk you through the actual repair.
Dan
SOURCE: NO SOUND
Gordon Brady says - go to the 45 Field Support Squadron Reunion in May 2009 and all your problems will be solved. Contact me at gordon brady at hot mail dot com for details please Kev.
SOURCE: I HAVE AN ONKYO TX
The symptom you described can be caused by any number of things. I always start with the output power transistors which are the first things to blow with a speaker output overload condition. Unplug the power cord to your unit, remove the top cover and use an ohmmeter to check resistance from C to E on all 10 of the power transistors (Q6050 thru 54 and Q6060 thru 64) attached to the large heat sink. Blown transistors typically read <1 ohm, compared to good transistors that are >10k ohms. If you find a bad transistor it will need to be replaced.
SOURCE: need to use RCR-461 RCA remote w/ ONKYO TX SV646
http://tv.manualsonline.com/ex/thread/view/idThread/1061487
Try that. Hope it helps!
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