I posted wrong here sorry,,, i have a tx 919 thx unit it keeps getting a protect error on it i have had it fixed 3 times is the circuits running hot for some reason or would you be able to tell me what the problem possibly is and, also is there that much of a difference between the 919 and the 939 tx onkyo units? thanks again
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The amp protection circuit has been activated. Remove the power cord from the wall outlet immediately. Disconnect all speaker cables and input sources, and leave the AV receiver with its power cord disconnected for 1 hour. After that, reconnect the power cord and reconnect an input and a pair of speaker wires onto the unit. If the receiver still does not turn on than you will have to bring it in for service. Turn up the volume and if the receiver doesn't shut down, power off the receiver and add another pair of speakers. Power up the unit again and turn up the volume. If it doesn't shut down, power off the unit again. Now connect all your input sources and turn on your receiver. If the unit shuts down again, your unit will need to be further serviced at an authorized Onkyo service center.
something is wrong either in one of your speaker connections or in the unit itself unplug for awhile to reset.try it again.make sure all connections are correct and nothing is touching.if that does not work it will be the unit itself
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.
The problem is not with the inputs. This unit is in protect because a problem has been detected in the output section. Try disconnecting the speaker wires and turning it on. If the unit remains on, there is a short in one of the speaker wires. If the unit still shuts down, there is an internal problem that will require repair. It sounds like this is a new piece. If so, it should be covered under warranty.
+22v line is missing. Check for 22v at R9207, not present check R9201,2 0.22ohm, R9203-6 1 ohm. Check also Q9201 12v reg ic, it supplies the led in the volume ctl. While your in there, solder up any cracked solder joints, bad connections.
There is a problem with one or both of the audio amp circuits. The amp is going into a protect mode as to protect and save your speakers. Sorry but there is no simple fix. this will need to go to the shop to be diagnoised. Good Luck