Hi Dave I'm sorry to hear that.
How old is your receiver?
Also were there any power outages or storms just prior to this event?
Thanks for that Dave.
This could be almost anything have you checked the fuse in the unit on the power supply? That would be the first step.
On this one they don't sell just the transformer inside on the board, But that is the part most likely to have failed anyway as they will over time. One of the biggest killers of theseisi unplugging them after they have been powered for a long time. Te reason is that this part is live all the time when plugged in even when its off.
So the part heats up and thats fine, but then it cools if unplugged and usually cracks the tiny wire windings inside.
The best way to fix this is to replace the supply board.
You can get that from Sears parts direct or this site I prefer if they have one, I also have other sources if we end up needing to go there.
Please check : https://www.partstore.com/OpenSearch/Model/Onkyo+Corporation/Onkyo.aspx
Or call them as I would recommend as theydo not list all parts and products on site;-)
In any case, I will stick with you until this is complete.
Please rate kindly thus far, it won't cost you anything to rate my service to you kindly,
Then you can reach me by simply replying to this message anytime.
Thank you and have a great day Dave!
H Dave please don't forget to rate so we can stay together until your receiver is working as it should. Thanks
No cost for rating;-)
Hi good morning Dave, with this one it could be the transformer as even though they will show near normal voltages they cant "sink" the current.
Meaning they have the proper voltage but there is no power behind the voltage amps.
So you will see this by the supply isn't delivering the needed power. This could also be another part on the power supply board as well that con only be determined by testing each component. I will check to see if a schematic is available for that board. This may take a day or so, I will let you know when I have it.
It looks like you may the experience needed to do this so I will help you either way with a new board that I will search out for you or repair on the old one.
But please rate at this time so we don't lose your question as sometimes happens if time passes with no rating. Once you do that, I will see this and reply to you so you can keep going with me. ALso there is no cost to rate.
Thanks for your understanding Dave.
We can go step by step on the testing procedures;-)
One way to find out where tto get the part is by calling Onkyo: 1-***-***-****.
Hi Dave lol, I'm sorry the site I use was down because of bad weather damage to their internet access. But thank you for that.
I have a question for you I know you sent me the outputs from the secondary, but I'm not sure on one of them. you have POFF) 7.4v 4 (+9V)?
Can you send just the voltages you observe on each pin
Hi Dave, thanks so much for clearing all that up. For one, you need a new supply transformer. I'm not sure if that is available separate you likely need the entire board.
Do you have a source for that?
I may be able to help there.
missing some outputs.
Hi Dave, Louie is an excellent tech as well ;-)
In this case you are correct I cant seem to locate one either, so, that means if you want to fix this or get it operational you will need to do a little trick. Basically you need a couple of supply transformers to make up the various voltages you need. Modify basically.
I have done that many times when a supply transformer isn't available.
Its really the only realistic way of doing this.
I will help you locate the supplies you can use if you want o do it that way. Just let me know on that?
Thank you and have a nice day Dave.