20 Most Recent Sherwood RX-4109 - Page 7 Questions & Answers

bad fuse, something is sending it to sand by to keep from ruining the rest of it, have it looked at by a pro technician

If electronics were that easy, I would nit have had a job for all these years. To do a correct diagnose, I usually have to hook up some extra tools, like a multimeter and / or an oscilloscope A sound generator, to check the amplifier and so on. But in the receivers you can find lots of causes, why a security kicks in. I don't think it will be possible to repair this over some e-mails or messages here. You really need a repair engineer for this. Sorry.

Look in the back of your manual, it depends on where in this world you are located.

Given that the Sherwood is a basic stereo/Dolby Pro Logic receiver, and that we have had sources where digital audio (coax and optical) are the standard for Dolby Digital and DTS for well over 15 years, and that HDMI is established now as the de facto standard for AV connections on many home AV products.... perhaps it's time to retire the Sherwood and look for something new. Entry level price points for new, fully spec'd, AV receivers capable of dealing with HD audio, DD, DTS, Dolby ProLogiic- and ProLogic II have never been cheaper. Sherwood is still a good brand. It has been joined by Yamaha ( RX-V377BL); Sony (STRDH750); Denon (AVR-S500BT) and Pioneer (VSX-524-K) at the entry-level price point of $249. In real terms these are probably a fraction of what you paid for the Sherwood all those years ago. Another option is used equipment. There are some really good pre-HDMI AV receivers from Denon, Yahama and Pioneer available in the used market.

Hello there.... Check your speaker wires and then if that doesn't do it? try replacing the fuses on the back of the amp.. make sure power is turned off and unplugged. If that doesn't work? Try one speaker at a time ... something is causing the system to short out. Hopefully it is not internally