20 Most Recent Sherwood RV-7050R Receiver Questions & Answers

the audio amplifier IC's are damaged that's the reason the device going back to stand by

Hello,
There is big chance that the internal wires on the speaker is loose or dust is starting to build up inside.
If your speaker is out of warranty already, you can use the Radio Shack contact cleaner to clean the internal portion of the speaker. Disassemble the unit, make sure it is powered off and then apply the cleaner. Wait for the cleaner to fully dissolve and then you can power on the speaker again.
Let me know how it goes.
Lyzmorato Fixya Premium Expert

While this may sound strange, it is not likely the receiver that is the probem, at least at this point. Remove the "tweeters" from the speakers and measure across the two leads. You should read continuity. If not, then the tweeters need to be replaced. I believe that you may have blown the tweeters.

Dan

I have a number of suppliers that can deliver internationally or are located in Europe. If you can list the part, I may be able to locate a few alternatives that might be more readily available as well.

Dan

You may be able to find a service manual for your Sherwood RV 7050R amp on the manufacturer's website or by contacting their customer support. Alternatively, you can search for third-party websites that offer service manuals for various electronics. Just be sure to use caution when downloading from unknown sources to avoid any potential risks.

The soft hiss that you are hearing from both speakers of your Sherwood RD-6505 may be caused by a few different factors:

1. Ground loop: A ground loop occurs when there are two or more devices connected to a common ground, causing a voltage difference between the grounds. This voltage difference can create interference, resulting in a hissing sound.
2. Faulty cable or connection: Check all of the connections and cables between your audio source and the Sherwood RD-6505. Make sure that they are plugged in securely and that the cables are in good condition. A faulty cable or connection can create interference and result in a hissing sound.
3. Amplifier issue: The hissing sound may also be caused by an issue with the amplifier circuitry in the Sherwood RD-6505. If this is the case, you may need to take the device to a professional for repair.
4. Power issue: If the power supply of the Sherwood RD-6505 is unstable, it can also result in a hissing sound. Check the power supply and ensure that it is providing the appropriate voltage.

If you have checked all of these potential causes and are still experiencing the hissing sound, it may be best to contact a professional for further diagnosis and repair.

The service manual is here Manual: RX2030R SHERWOOD (archive.org) Moving on, are you sure the 120/240 voltage select is set correctly? That fuse is not listed but could be one of the fuses shown in the schematic on the voltage selector board. You need to check the diodes that are after the transformer to see if one or more have failed. Usually the thermal fuse in the transformer will fail and none of the other ones will. You need to check the transformer for shorts on both the primary and secondary side. You need to see if any of the filter capacitors have failed.

and FM is dead,? (other shoe drops now)you meant/?Sherwood Newcastle R-525 sold new in 1990s so near 30 years is a good run. no?it needs work, the knob shaft broken installed wrong.no photo of yours posted.,well of FM is dead the problem is far far worsebad power supply DC inside,to fix that needs the shop manual schematic and a meter check each DC power rail for in spec.voltageor if one is shorted to ground. overloading itor the rig got wet, just found this in a garage sale or ran 25 years and die this week./not history told and there are always a story.some even sordid. (full of mouse peeee from attic storage>????? seen it all and some wished not.

Hi, If the speakers work during the test, then the issue might be with how surround sound is programmed on your tv. You should look into your sound settings with your tv's remote. Thank you.

Here you go

Sherwood RD-6505 Operating Instructions Manual - ManualsLib

https://www.manualslib.com > ... > Receiver > RD-6505 View and Download Sherwood RD-6505 operating instructions manual online. AUDIO/VIDEO RECEIVER. RD-6505 receiver pdf manual download. Missing: theatre ‎' Must include: theatre

• Sherwood RD-6505 Manuals ' ManualsLib

  https://www.manualslib.com > products · Translate this page Manuals and User Guides for Sherwood RD-6505. We have 2 Sherwood RD-6505 manuals available for free PDF download: Operating Instructions Manual · 4. English · 45.

Question edited for full make model (what it is). If the whole unit isn't working, yes, I could be a fuse. If only the surround sound isn't working, it is a wiring issue or a button issue, or an internal component failure. https://www.google.com/search?q=sherwood+ra-1140+service+manual ..

The head phone jack in the Sherwood receiver has dirty contacts. If the head phones work in another device, that proves there is nothing wrong with them. When phones are plugged in the Sherwood, shows s problem with the receiver. When the head phones are not plugged in and both external speakers come on, it means nothing regarding head phones. Contact cleaner could be used to fix the problem.

If there is one, it will be mentioned within your user manual.