Question about Onkyo TX-DS939 Receiver

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Problem with onkyo tx 919 unit

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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Hi...
If you've had it "fixed" 3 times and the problem comes back either you have the wrong impedance (ohms) speakers connected or the power supply in the unit is the actual problem.

Happy new years,

Scott

Posted on Jan 01, 2009

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Onyko tx nr616 receiver keeps shutting off. Only stays on for approximately 3 seconds. Can you help?


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.

Sep 30, 2014 | Onkyo Tx-nr616 7.2 Thx Certified Network...

2 Answers

If I would buy a Onkyo TX-NR616 in the US (110V) and take it Europe (220V), wouldn't it be a solution to simply exchange the power transformer for a 220v one?


An stepdown transformer is needed should you buy in US and use it Europe

However, if your on a technical side , trace the primary windings , and check

There are European versions which are already 220V, no need to convert.


Source : page EN 99 of the Onkyo TX NR616

manual

Sep 24, 2012 | Onkyo Tx-nr616 7.2 Thx Certified Network...

2 Answers

My unit switches between speakers A, B and neither, while warming up. Lasting anywhere from 5min-15mins until it settles. Then speakers A can be selected and it will stay there. How do I fix this?


I see that I am not only one with same issue with TX-DS747, and would be grateful if someone could post some more info about this problem.

Jul 03, 2009 | Onkyo TX-DS747

1 Answer

Onkyo TX-SV414Pro. No audio. Displays "Protect"


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

Jun 11, 2009 | Onkyo TX-SR803 Receiver

2 Answers

Protect Mode on. Want to repair/return to normal


Sounds like your receiver is fried. Your best choice is probably to take it to a repair facility, where they can figure out what component failed, or to buy a new receiver.

May 18, 2009 | Onkyo TX-SR602 Receiver

1 Answer

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

Sep 12, 2008 | Onkyo TX-SV646 Receiver

1 Answer

Onkyo TX-NR905 Protection Circuit Activated


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.

Keep us posted,
Dan

Jul 28, 2008 | Onkyo TX-NR905 Receiver

3 Answers

Onkyo TX-DS939 Receiver Problem


+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.

Nov 04, 2007 | Onkyo TX-DS939 Receiver

1 Answer

Stuck in protect mode


i believe protect mode is because you have the wrong impedence speakers, they are too low (4 ohm? 6 ohm?) it chols work with 8 ohm speakers

Aug 16, 2007 | Onkyo TX-SV454 Receiver

1 Answer

Amp keeps switching off


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

Apr 29, 2007 | Onkyo TX-SV373 Receiver

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