-
WANTED: Happy members who like to discuss audio and other topics related to our interest. Desire to learn and share knowledge of science required. There are many reviews of audio hardware and expert members to help answer your questions. Click here to have your audio equipment measured for free!
Help troubleshooting broken Denon AVR-8500
- Thread starter bo_knows
- Start date
OK good.
Should disconnect all speaker wires inspect and reconnect one set at a time. One may have a short and is causing the protection circuitry to prevent damage to the amp section.
OP
bo_knows
Addicted to Fun and Learning
- Thread Starter
- #25
Adam, I disconnected everything.
The only input was coming from Oppo RCA and it still didn't power up the headphones.
I assume Denon is using only resistors in the headphone output circuitry.
If that is the case and amps are working, they should play the music on my headphones. Correct?
No, if there is a amp issue in any of the amp channels then the protection will engage and all channels will be disconnected via the relays. We really should have a service manual before we get too deep in conjecture.
OK Cool. Can you post it here? It might need to be zipped if too large. How big is it... ~80 megabyte? If all else fails email works too.
That's large. I'm not sure if ASR will permit a large <.pdf> like that to be attached. Can you attach it?
Did you change to the proper input select for that input? Assuming it was previously set for Oppo at hdmi, did you change the input to Analog for that input? If you didn’t then you would get no signal. See link for further explaination.
Input Assign AVR-X8500H
OP
bo_knows
Addicted to Fun and Learning
- Thread Starter
- #33
I'm using Blu-Ray on the remote control.Did you change to the proper input select for that input? Assuming it was previously set for Oppo at hdmi, did you change the input to Analog for that input? If you didn’t then you would get no signal. See link for further explaination.
Input Assign AVR-X8500H
manuals.denon.com
The analog output from Oppo is connected to the analog input listed Blu-Ray.
Do I need to do anything extra?
Yes, you need to read the Manual I linked. The Blu-ray deafaults to HDMI input, if you want to use the RCA analog jacks as the input for Blu-ray you have to change that setting in the AVR’s Setup Menu, Inputs, Input Assign Menu.
restorer-john
Grand Contributor
He can just upload it to google drive and share the link.
OP
bo_knows
Addicted to Fun and Learning
- Thread Starter
- #38
Hello John,
I was just waiting for my daughter to fall asleep. Now, I can allocate more time to this.
Yes, let me see if I can upload it to Google Drive and share the link.
This manual has 209 pages of highly technical stuff and it's not for the faint of heart.
I'm overwhelmed and this is way over my head but looking for some onboard troubleshooting codes or ways to identify what part (board) has the issue.
restorer-john
Grand Contributor
If the main speaker relay/s are not activating, there could be a bunch of scenarios:
One (or more channels) amp stages are faulty. They could have DC offset, failure or have a history (in the flash) of short/OC/DC etc.
Are 100% sure the unit has not defaulted or been switched to a pre/processor function? That will keep the main amps off.
Link the S/M and we can help.
One (or more channels) amp stages are faulty. They could have DC offset, failure or have a history (in the flash) of short/OC/DC etc.
Are 100% sure the unit has not defaulted or been switched to a pre/processor function? That will keep the main amps off.
Link the S/M and we can help.
OP
bo_knows
Addicted to Fun and Learning
- Thread Starter
- #40
Google Drive: Sign-in
Access Google Drive with a Google account (for personal use) or Google Workspace account (for business use).
drive.google.com
