20 Most Recent Onkyo M-501 Amplifier Questions & Answers

Swap input cables to the left side to verify both sides are clean. The power module for the right channel is probably toast. Or the protection relay for the right channel is very resistive. The power module does not exist on the internet. Go to Ebay, find a 100% seller, buy a M-501 for a good price, use your M-501 for spare parts.

EITHER blown caps or burnt internal fuses, look around on the circuit board for capacitors with rounded or humped ends, find and check internal fuses and test them

unplugged with nO power cord connected,,after checking for any internal blown fuses, inspect circuit board for burnt resistors or blown caps, the resistors will appear to be laying on there sides and have multi colored bands around them look for burnt or discolored ones, blown capacitors will look like tiny barrels with lids a flat top indicates a good capacitor as any humped or bulged or rounded top would indicate blown cap , if not more than a couple you may be able to replace these with success, be careful always Unplug from power before servicing electronic componants.

Try this website it should be free http://www.onkyousa.com/Downloads/manuals.php?source=globalnav

You need to connect all the remote cables together then turn on the multiple room button on the onkyo p-301 preamp if u have it the it should turn on.

channel B

The 0-83 error indicates a problem with the firmware update. Try resetting the receiver's BIOS by following these steps2: Unplug all cables Un-Power the receiver Power the receiver Before the receiver gets into the "Enter for updating" message, press Tone + CBL/SAT + ON/STANDBY. This will show you either the volume numbers or get you into settings of the receiver's speaker configuration. Press CBL/SAT + ON/STANDBY. This will clear the BIOS and show a "Clear" message on the display. Wait until you hear a couple of clicking sounds for the receiver to turn on and off the power. TX-NR555 Owner's Manual - Onkyo Product Support (onkyousa.com)

Hello Did you update the AVR over the internet? If so the device wont work anymore. You need to service the device in a nearest Onkyo service department. Regards

Hello, To test the subwoofer when the blue light is on if you apply your thumb to the end of the subwoofer cable (the end that you would plug into the receiver) there should be feedback from the sub. If there is no feedback then the sub is not working correctly. Thanks, FJD

Here is service manual for your help. See the pat reference on IO Board and compare it with service manual. ONKYO TX-DS797 SERVICE MANUAL Pdf Download ' ManualsLib

There are several causes of this problem. My be mute is ON, may be fuse is blown etc etc. However refer to page 62 of manual, it will help. HT-S6500_English_2022-11-02-204020_ivkn.pdf (onkyo-av.com)

Oknkyo SKW-791 has build in amplifier. So it can be connected through Line Out Connector of sansui amplifier. If speakers out is connected with subwoofer, the circuit board in subwoofer will be blown.

See troubleshooting section of user manual on page 62 Troubleshooting; Power Troubles; Audio Troubles; Appendix - Onkyo HT-R758 Instruction Manual [Page 62] ' ManualsLib

You need a RCA sub-woofer cable (analog mono) to connect between the receiver's sub-woofer Pre Out and the sub-woofer. This cable has a single RCA plug at each end of the cable. The cable is somewhat thicker than some audio RCA cables. You can use any RCA cable temporarily. The manual for the HT-R758 is available from Onkyo here: https://onkyousa.com/ht-r758 . The current link to the manual is https://assets.onkyo-av.com/product-manuals/HT-S6500_English_2022-11-02-204020_ivkn.pdf?v=1667421620 . See page EN-13 (page 13 of the PDF) for connecting to the subwoofer. The original package came with a 10' RCA sub-woofer cable, see page EN-1 (page 81 of the PDF) for the speaker list. I hope this helps. Cindy Wells

Available on eBay but expensive. https://www.google.com/search?q=onkyo+tx-nr414+hdmi+board ..

The error code M1.04/19912A50 on your Onkyo AV receiver HT-R398 typically indicates a firmware or software-related issue. To resolve this problem and reset your receiver, you can follow these steps:

1. Power Cycle the Receiver:
   • Turn off the receiver and unplug it from the power source.
   • Wait for about 10-15 minutes to ensure that all internal components have fully powered down.
   • Plug the receiver back in and turn it on.
2. Factory Reset:
   • If the error persists after power cycling, you may need to perform a factory reset to restore the receiver to its default settings. Note that this will erase all your custom settings, so make sure to back up any important configurations if possible.
   • To perform a factory reset, refer to your receiver's user manual for specific instructions. Typically, this involves pressing and holding specific buttons on the front panel while powering on the receiver. The exact combination of buttons may vary by model.
3. Firmware Update:
   • Ensure that your receiver's firmware is up to date. Visit the Onkyo website and check if there are any firmware updates available for your HT-R398 model. If updates are available, follow the provided instructions to update the firmware.
4. Contact Customer Support:
   • If the issue persists after trying the above steps, it's a good idea to contact Onkyo customer support or visit their official support website. They may be able to provide specific guidance or solutions for the error code you're encountering.

Remember to consult your receiver's user manual for model-specific instructions, as the steps to reset or update firmware can vary between different Onkyo models. Additionally, be cautious when performing a factory reset, as it will erase all settings and return the receiver to its default state.